Release v0.0.11

Co-authored-by: Benjamin Große <ste3ls@gmail.com>

.envrc

@@ -0,0 +1 @@
+use flake

.gitattributes

@@ -1 +1,3 @@
-* text eol=lf
+*.rs text eol=lf
+*.toml text eol=lf
+*.md text eol=lf

.github/FUNDING.yml

@@ -0,0 +1 @@
+ko_fi: ulyssam

.github/workflows/binaries.yml

@@ -0,0 +1,94 @@
+on:
+  push:
+    branches:
+      - main
+
+name: Binaries
+
+jobs:
+  package:
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, windows-latest, macos-latest]
+        arch: [x86_64, aarch64]
+        exclude:
+          - platform: windows-latest
+            arch: aarch64
+        include:
+          - platform: ubuntu-latest
+            arch: x86_64
+            triple: unknown-linux-musl
+          - platform: ubuntu-latest
+            arch: aarch64
+            triple: unknown-linux-gnu
+          - platform: macos-latest
+            triple: apple-darwin
+          - platform: windows-latest
+            triple: pc-windows-msvc
+    runs-on: ${{ matrix.platform }}
+    env:
+      TARGET: ${{ matrix.arch }}-${{ matrix.triple }}
+      SCCACHE_GHA_ENABLED: "true"
+      RUSTC_WRAPPER: "sccache"
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v3
+      with:
+        submodules: true
+    - name: Install Rust (stable)
+      uses: dtolnay/rust-toolchain@stable
+      with:
+          targets: ${{ env.TARGET }}
+    - name: Install C cross-compilation toolchain
+      if: matrix.platform == 'ubuntu-latest'
+      run: |
+        sudo apt-get update
+        sudo apt install -f -y build-essential crossbuild-essential-arm64 musl-dev
+        # Cross-compilation env vars for x86_64-unknown-linux-musl
+        echo CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER=x86_64-linux-musl-gcc >> $GITHUB_ENV
+        echo AR_x86_64_unknown_linux_musl=x86_64-linux-gnu-ar >> $GITHUB_ENV
+        echo CC_x86_64_unknown_linux_musl=x86_64-linux-musl-gcc >> $GITHUB_ENV
+        echo CXX_x86_64_unknown_linux_musl=x86_64-linux-gnu-g++ >> $GITHUB_ENV
+        # Cross-compilation env vars for aarch64-unknown-linux-gnu
+        echo CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc >> $GITHUB_ENV
+        echo AR_aarch64_unknown_linux_gnu=aarch64-linux-gnu-ar >> $GITHUB_ENV
+        echo CC_aarch64_unknown_linux_gnu=aarch64-linux-gnu-gcc >> $GITHUB_ENV
+        echo CXX_aarch64_unknown_linux_gnu=aarch64-linux-gnu-g++ >> $GITHUB_ENV
+    - name: Cache cargo registry
+      uses: actions/cache@v3
+      with:
+        path: ~/.cargo/registry
+        key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+    - name: Run sccache-cache
+      uses: mozilla-actions/sccache-action@v0.0.9
+    - name: 'Build: binary'
+      run: cargo +stable build --release --locked --target ${{ env.TARGET }}
+    - name: 'Upload: binary'
+      uses: actions/upload-artifact@v4
+      with:
+        name: iamb-${{ env.TARGET }}-binary
+        path: |
+          ./target/${{ env.TARGET }}/release/iamb
+          ./target/${{ env.TARGET }}/release/iamb.exe
+    - name: 'Package: deb'
+      if: matrix.platform == 'ubuntu-latest'
+      run: |
+        cargo +stable install --locked cargo-deb
+        cargo +stable deb --no-strip --target ${{ env.TARGET }}
+    - name: 'Upload: deb'
+      if: matrix.platform == 'ubuntu-latest'
+      uses: actions/upload-artifact@v4
+      with:
+        name: iamb-${{ env.TARGET }}-deb
+        path: ./target/${{ env.TARGET }}/debian/iamb*.deb
+    - name: 'Package: rpm'
+      if: matrix.platform == 'ubuntu-latest'
+      run: |
+        cargo +stable install --locked cargo-generate-rpm
+        cargo +stable generate-rpm --target ${{ env.TARGET }}
+    - name: 'Upload: rpm'
+      if: matrix.platform == 'ubuntu-latest'
+      uses: actions/upload-artifact@v4
+      with:
+        name: iamb-${{ env.TARGET }}-rpm
+        path: ./target/${{ env.TARGET }}/generate-rpm/iamb*.rpm

.github/workflows/ci.yml

@@ -9,52 +9,61 @@ on:
 name: CI
 
 jobs:
-  clippy_check:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout code
-      uses: actions/checkout@v1
-      with:
-        submodules: true
-    - name: Install Rust
-      uses: actions-rs/toolchain@v1
-      with:
-          toolchain: stable
-          components: clippy
-          override: true
-    - name: Check Clippy
-      uses: actions-rs/clippy-check@v1
-      with:
-        token: ${{ secrets.GITHUB_TOKEN }}
-        toolchain: stable
-        args:
   test:
     strategy:
       matrix:
         platform: [ubuntu-latest, windows-latest, macos-latest]
     runs-on: ${{ matrix.platform }}
+    env:
+      SCCACHE_GHA_ENABLED: "true"
+      RUSTC_WRAPPER: "sccache"
     steps:
     - name: Checkout code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v3
       with:
         submodules: true
-    - name: Install Rust
-      uses: actions-rs/toolchain@v1
+    - name: Install Rust (1.83 w/ clippy)
+      uses: dtolnay/rust-toolchain@1.83
       with:
-          toolchain: nightly
-          override: true
-          components: rustfmt, clippy
+          components: clippy
+    - name: Install Rust (nightly w/ rustfmt)
+      run: rustup toolchain install nightly --component rustfmt
     - name: Cache cargo registry
-      uses: actions/cache@v1
+      uses: actions/cache@v3
       with:
         path: ~/.cargo/registry
         key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+    - name: Run sccache-cache
+      uses: mozilla-actions/sccache-action@v0.0.9
     - name: Check formatting
-      uses: actions-rs/cargo@v1
+      run: cargo +nightly fmt --all -- --check
+    - name: Check Clippy
+      if: matrix.platform == 'ubuntu-latest'
+      uses: giraffate/clippy-action@v1
       with:
-          command: fmt
-          args: --all -- --check
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        reporter: 'github-check'
     - name: Run tests
-      uses: actions-rs/cargo@v1
-      with:
-          command: test
+      run: cargo test --locked
+
+  nix-flake-test:
+    name: Flake checks ❄️
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.platform }}
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v31
+        with:
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
+      - uses: cachix/cachix-action@v15
+        with:
+          name: iamb-prs
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+      - name: Flake check
+        run: |
+          nix flake show
+          nix flake check --print-build-logs
+

.gitignore

@@ -1,2 +1,4 @@
 /target
+/result
 /TODO
+.direnv

.rustfmt.toml

@@ -1,6 +1,6 @@
 unstable_features = true
 max_width = 100
-fn_call_width = 90
+fn_call_width = 88
 struct_lit_width = 50
 struct_variant_width = 50
 chain_width = 75

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "iamb"
-version = "0.0.2"
+version = "0.0.11"
 edition = "2018"
 authors = ["Ulyssa <git@ulyssa.dev>"]
 repository = "https://github.com/ulyssa/iamb"
@@ -10,29 +10,129 @@ description = "A Matrix chat client that uses Vim keybindings"
 license = "Apache-2.0"
 exclude = [".github", "CONTRIBUTING.md"]
 keywords = ["matrix", "chat", "tui", "vim"]
-rust-version = "1.66"
+categories = ["command-line-utilities"]
+rust-version = "1.88"
+build = "build.rs"
+
+[features]
+default = ["bundled", "desktop"]
+bundled = ["matrix-sdk/bundled-sqlite", "rustls-tls"]
+desktop = ["dep:notify-rust", "modalkit/clipboard"]
+native-tls = ["matrix-sdk/native-tls"]
+rustls-tls = ["matrix-sdk/rustls-tls"]
+
+[build-dependencies.vergen]
+version = "8"
+default-features = false
+features = ["build", "git", "gitcl",]
 
 [dependencies]
+anyhow = "1.0"
+bitflags = "^2.3"
 chrono = "0.4"
-clap = {version = "4.0", features = ["derive"]}
+clap = {version = "~4.3", features = ["derive"]}
+css-color-parser = "0.1.2"
 dirs = "4.0.0"
-futures = "0.3.21"
+emojis = "0.5"
+feruca = "0.10.1"
+futures = "0.3"
 gethostname = "0.4.1"
-matrix-sdk = {version = "0.6", default-features = false, features = ["e2e-encryption", "sled", "rustls-tls"]}
-modalkit = "0.0.9"
+html5ever = "0.26.0"
+image = "^0.25.6"
+libc = "0.2"
+markup5ever_rcdom = "0.2.0"
+mime = "^0.3.16"
+mime_guess = "^2.0.4"
+nom = "7.0.0"
+open = "3.2.0"
+rand = "0.8.5"
+ratatui = "0.29.0"
+ratatui-image = { version = "~8.0.1", features = ["serde"] }
 regex = "^1.5"
 rpassword = "^7.2"
 serde = "^1.0"
 serde_json = "^1.0"
-sled = "0.34"
+sled = "0.34.7"
+temp-dir = "0.1.12"
 thiserror = "^1.0.37"
-tokio = {version = "1.17.0", features = ["full"]}
+toml = "^0.8.12"
 tracing = "~0.1.36"
 tracing-appender = "~0.2.2"
 tracing-subscriber = "0.3.16"
 unicode-segmentation = "^1.7"
 unicode-width = "0.1.10"
 url = {version = "^2.2.2", features = ["serde"]}
+edit = "0.1.4"
+humansize = "2.0.0"
+linkify = "0.10.0"
+shellexpand = "3.1.1"
+
+[dependencies.comrak]
+version = "0.22.0"
+default-features = false
+features = ["shortcodes"]
+
+[dependencies.notify-rust]
+version = "~4.10.0"
+default-features = false
+features = ["zbus", "serde"]
+optional = true
+
+[dependencies.modalkit]
+version = "0.0.24"
+default-features = false
+#git = "https://github.com/ulyssa/modalkit"
+#rev = "e40dbb0bfeabe4cfd08facd2acb446080a330d75"
+
+[dependencies.modalkit-ratatui]
+version = "0.0.24"
+#git = "https://github.com/ulyssa/modalkit"
+#rev = "e40dbb0bfeabe4cfd08facd2acb446080a330d75"
+
+[dependencies.matrix-sdk]
+version = "0.14.0"
+default-features = false
+features = ["e2e-encryption", "sqlite", "sso-login"]
+
+[dependencies.tokio]
+version = "1.24.1"
+features = ["macros", "net", "rt-multi-thread", "sync", "time"]
 
 [dev-dependencies]
 lazy_static = "1.4.0"
+pretty_assertions = "1.4.0"
+
+[profile.release-lto]
+inherits = "release"
+incremental = false
+lto = true
+
+[package.metadata.deb]
+section = "net"
+license-file = ["LICENSE", "0"]
+assets = [
+    # Binary:
+    ["target/release/iamb", "usr/bin/iamb", "755"],
+    # Manual pages:
+    ["docs/iamb.1", "usr/share/man/man1/iamb.1", "644"],
+    ["docs/iamb.5", "usr/share/man/man5/iamb.5", "644"],
+    # Other assets:
+    ["iamb.desktop", "usr/share/applications/iamb.desktop", "644"],
+    ["config.example.toml", "usr/share/iamb/config.example.toml", "644"],
+    ["docs/iamb.svg", "usr/share/icons/hicolor/scalable/apps/iamb.svg", "644"],
+    ["docs/iamb.metainfo.xml", "usr/share/metainfo/iamb.metainfo.xml", "644"],
+]
+
+[package.metadata.generate-rpm]
+assets = [
+    # Binary:
+    { source = "target/release/iamb", dest = "/usr/bin/iamb", mode = "755" },
+    # Manual pages:
+    { source = "docs/iamb.1", dest = "/usr/share/man/man1/iamb.1", mode = "644" },
+    { source = "docs/iamb.5", dest = "/usr/share/man/man5/iamb.5", mode = "644" },
+    # Other assets:
+    { source = "iamb.desktop", dest = "/usr/share/applications/iamb.desktop", mode = "644" },
+    { source = "config.example.toml", dest = "/usr/share/iamb/config.example.toml", mode = "644"},
+    { source = "docs/iamb.svg", dest = "/usr/share/icons/hicolor/scalable/apps/iamb.svg", mode = "644"},
+    { source = "docs/iamb.metainfo.xml", dest = "/usr/share/metainfo/iamb.metainfo.xml", mode = "644"},
+]

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright [yyyy] [name of copyright owner]
+   Copyright 2024 Ulyssa Mello
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

PACKAGING.md

@@ -0,0 +1,44 @@
+# Notes For Package Maintainers
+
+## Linking Against System Packages
+
+The default Cargo features for __iamb__ will bundle SQLite and use [rustls] for
+TLS. Package maintainers may want to link against the system's native SQLite
+and TLS libraries instead. To do so, you'll want to build without the default
+features and specify that it should build with `native-tls`:
+
+```
+% cargo build --release --no-default-features --features=native-tls
+```
+
+## Enabling LTO
+
+Enabling LTO can result in smaller binaries. There is a separate profile to
+enable it when building:
+
+```
+% cargo build --profile release-lto
+```
+
+Note that this [can fail][ring-lto] in some build environments if both Clang
+and GCC are present.
+
+## Documentation
+
+In addition to the compiled binary, there are other files in the repo that
+you'll want to install as part of a package:
+
+<!-- Please keep in sync w/ the `deb`/`generate-rpm` sections of `Cargo.toml` -->
+| Repository Path         | Installed Path (may vary per OS)                |
+| ----------------------- | ----------------------------------------------- |
+| /iamb.desktop           | /usr/share/applications/iamb.desktop            |
+| /config.example.toml    | /usr/share/iamb/config.example.toml             |
+| /docs/iamb-256x256.png  | /usr/share/icons/hicolor/256x256/apps/iamb.png  |
+| /docs/iamb-512x512.png  | /usr/share/icons/hicolor/512x512/apps/iamb.png  |
+| /docs/iamb.svg          | /usr/share/icons/hicolor/scalable/apps/iamb.svg |
+| /docs/iamb.1            | /usr/share/man/man1/iamb.1                      |
+| /docs/iamb.5            | /usr/share/man/man5/iamb.5                      |
+| /docs/iamb.metainfo.xml | /usr/share/metainfo/iamb.metainfo.xml           |
+
+[ring-lto]: https://github.com/briansmith/ring/issues/1444
+[rustls]: https://crates.io/crates/rustls

README.md

@@ -1,101 +1,157 @@
-# iamb
+<div align="center">
+    <h1><img width="200" height="200" src="docs/iamb.svg"></h1>
+
+[![Build Status](https://github.com/ulyssa/iamb/actions/workflows/ci.yml/badge.svg)](https://github.com/ulyssa/iamb/actions?query=workflow%3ACI+)
+[![License: Apache 2.0](https://img.shields.io/crates/l/iamb.svg?logo=apache)][crates-io-iamb]
+[![#iamb:0x.badd.cafe](https://img.shields.io/badge/matrix-%23iamb:0x.badd.cafe-blue)](https://matrix.to/#/#iamb:0x.badd.cafe)
+[![Latest Version](https://img.shields.io/crates/v/iamb.svg?logo=rust)][crates-io-iamb]
+[![iamb](https://snapcraft.io/iamb/badge.svg)](https://snapcraft.io/iamb)
+
+![Example Usage](https://iamb.chat/static/images/iamb-demo.gif)
+
+</div>
 
 ## About
 
-`iamb` is a Matrix client for the terminal that uses Vim keybindings.
+`iamb` is a Matrix client for the terminal that uses Vim keybindings. It includes support for:
 
-This project is a work-in-progress, and there's still a lot to be implemented,
-but much of the basic client functionality is already present.
+- Threads, spaces, E2EE, and read receipts
+- Image previews in terminals that support it (sixels, Kitty, and iTerm2), or using pixelated blocks for those that don't
+- Notifications via terminal bell or desktop environment
+- Send Markdown, HTML or plaintext messages
+- Creating, joining, and leaving rooms
+- Sending and accepting room invitations
+- Editing, redacting, and reacting to messages
+- Custom keybindings
+- Multiple profiles
+
+_You may want to [see this page as it was when the latest version was published][crates-io-iamb]._
 
 ## Documentation
 
 You can find documentation for installing, configuring, and using iamb on its
 website, [iamb.chat].
 
-## Installation
-
-Install Rust and Cargo, and then run:
-
-```
-cargo install iamb
-```
-
 ## Configuration
 
-You can create a basic configuration in `$CONFIG_DIR/iamb/config.json` that looks like:
+You can create a basic configuration in `$CONFIG_DIR/iamb/config.toml` that looks like:
 
-```json
-{
-    "profiles": {
-        "example.com": {
-            "url": "https://example.com",
-            "user_id": "@user:example.com"
-        }
-    }
-}
+```toml
+[profiles."example.com"]
+user_id = "@user:example.com"
 ```
 
-## Comparison With Other Clients
+If you homeserver is located on a different domain than the server part of the
+`user_id` and you don't have a [`/.well-known`][well_known_entry] entry, then
+you can explicitly specify the homeserver URL to use:
 
-To get an idea of what is and isn't yet implemented, here is a subset of the
-Matrix website's [features comparison table][client-comparison-matrix], showing
-two other TUI clients and Element Web:
+```toml
+[profiles."example.com"]
+url = "https://example.com"
+user_id = "@user:example.com"
+```
+
+## Installation (from source)
+
+Install Rust and Cargo using [rustup], and then run from the directory
+containing the sources (ie: from a git clone):
+
+```
+cargo install --locked --path .
+```
+
+## Installation (via `crates.io`)
+
+Install Rust (1.83.0 or above) and Cargo, and then run:
+
+```
+cargo install --locked iamb
+```
+
+See [Configuration](#configuration) for getting a profile set up.
+
+## Installation (via package managers)
+
+### Arch Linux
+
+On Arch Linux a [package](https://aur.archlinux.org/packages/iamb-git) is available in the
+Arch User Repositories (AUR). To install it simply run with your favorite AUR helper:
+
+```
+paru iamb-git
+```
+
+### FreeBSD
+
+On FreeBSD a package is available from the official repositories. To install it simply run:
+
+```
+pkg install iamb
+```
+
+### Gentoo
+
+On Gentoo, an ebuild is available from the community-managed
+[GURU overlay](https://wiki.gentoo.org/wiki/Project:GURU).
+
+You can enable the GURU overlay with:
+
+```
+eselect repository enable guru
+emerge --sync guru
+```
+
+And then install `iamb` with:
+
+```
+emerge --ask iamb
+```
+
+### macOS
+
+On macOS a [package](https://formulae.brew.sh/formula/iamb#default) is available in Homebrew's
+repository. To install it simply run:
+
+```
+brew install iamb
+```
+
+### NetBSD
+
+On NetBSD a package is available from the official repositories. To install it simply run:
+
+```
+pkgin install iamb
+```
+
+### Nix / NixOS (flake)
+
+```
+nix profile install "github:ulyssa/iamb"
+```
+
+### openSUSE Tumbleweed
+
+On openSUSE Tumbleweed a [package](https://build.opensuse.org/package/show/openSUSE:Factory/iamb) is available from the official repositories. To install it simply run:
+
+```
+zypper install iamb
+```
+
+### Snap
+
+A snap for Linux distributions which [support](https://snapcraft.io/docs/installing-snapd) the packaging system.
+
+```
+snap install iamb
+```
 
-|                                         | iamb               | [gomuks]           | [weechat-matrix]   | Element Web/Desktop |
-| --------------------------------------- | :----------------- | :----------------: | :----------------: | :-----------------: |
-| Room directory                          | :x: ([#14])        | :x:                | :heavy_check_mark: | :heavy_check_mark:  |
-| Room tag showing                        | :x: ([#15])        | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
-| Room tag editing                        | :x: ([#15])        | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
-| Search joined rooms                     | :x: ([#16])        | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
-| Room user list                          | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Display Room Description                | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Edit Room Description                   | :heavy_check_mark: | :x:                | :heavy_check_mark: | :heavy_check_mark:  |
-| Highlights                              | :x: ([#8])         | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Pushrules                               | :x:                | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
-| Send read markers                       | :x: ([#11])        | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Display read markers                    | :x: ([#11])        | :x:                | :x:                | :heavy_check_mark:  |
-| Sending Invites                         | :x: ([#7])         | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Accepting Invites                       | :x: ([#7])         | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Typing Notification                     | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| E2E                                     | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Replies                                 | :x: ([#3])         | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
-| Attachment uploading                    | :x: ([#13])        | :x:                | :heavy_check_mark: | :heavy_check_mark:  |
-| Attachment downloading                  | :x: ([#13])        | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Send stickers                           | :x:                | :x:                | :x:                | :heavy_check_mark:  |
-| Send formatted messages (markdown)      | :x: ([#10])        | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Rich Text Editor for formatted messages | :x:                | :x:                | :x:                | :heavy_check_mark:  |
-| Display formatted messages              | :x: ([#10])        | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Redacting                               | :x: ([#5])         | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-| Multiple Matrix Accounts                | :heavy_check_mark: | :x:                | :heavy_check_mark: | :x:                 |
-| New user registration                   | :x:                | :x:                | :x:                | :heavy_check_mark:  |
-| VOIP                                    | :x:                | :x:                | :x:                | :heavy_check_mark:  |
-| Reactions                               | :x: ([#2])         | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
-| Message editing                         | :x: ([#4])         | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
-| Room upgrades                           | :x:                | :heavy_check_mark: | :x:                | :heavy_check_mark:  |
-| Localisations                           | :x:                | 1                  | :x:                | 44                  |
-| SSO Support                             | :x:                | :heavy_check_mark: | :heavy_check_mark: | :heavy_check_mark:  |
-                                                                                       
 ## License
 
 iamb is released under the [Apache License, Version 2.0].
 
 [Apache License, Version 2.0]: https://github.com/ulyssa/iamb/blob/master/LICENSE
-[client-comparison-matrix]: https://matrix.org/clients-matrix/
+[crates-io-iamb]: https://crates.io/crates/iamb
 [iamb.chat]: https://iamb.chat
-[gomuks]: https://github.com/tulir/gomuks
-[weechat-matrix]: https://github.com/poljar/weechat-matrix
-[#2]: https://github.com/ulyssa/iamb/issues/2
-[#3]: https://github.com/ulyssa/iamb/issues/3
-[#4]: https://github.com/ulyssa/iamb/issues/4
-[#5]: https://github.com/ulyssa/iamb/issues/5
-[#6]: https://github.com/ulyssa/iamb/issues/6
-[#7]: https://github.com/ulyssa/iamb/issues/7
-[#8]: https://github.com/ulyssa/iamb/issues/8
-[#9]: https://github.com/ulyssa/iamb/issues/9
-[#10]: https://github.com/ulyssa/iamb/issues/10
-[#11]: https://github.com/ulyssa/iamb/issues/11
-[#12]: https://github.com/ulyssa/iamb/issues/12
-[#13]: https://github.com/ulyssa/iamb/issues/13
-[#14]: https://github.com/ulyssa/iamb/issues/14
-[#15]: https://github.com/ulyssa/iamb/issues/15
-[#16]: https://github.com/ulyssa/iamb/issues/16
+[well_known_entry]: https://spec.matrix.org/latest/client-server-api/#getwell-knownmatrixclient
+[rustup]: https://rustup.rs/

build.rs

@@ -0,0 +1,9 @@
+use std::error::Error;
+
+use vergen::EmitBuilder;
+
+fn main() -> Result<(), Box<dyn Error>> {
+    EmitBuilder::builder().git_sha(true).emit()?;
+
+    Ok(())
+}

config.example.toml

@@ -0,0 +1,58 @@
+default_profile = "default"
+
+[profiles.default]
+user_id = "@user:matrix.org"
+url = "https://matrix.org"
+
+[settings]
+default_room = "#iamb-users:0x.badd.cafe"
+external_edit_file_suffix = ".md"
+log_level = "warn"
+message_shortcode_display = false
+open_command = ["my-open", "--file"]
+reaction_display = true
+reaction_shortcode_display = false
+read_receipt_display = true
+read_receipt_send = true
+request_timeout = 10000
+typing_notice_display = true
+typing_notice_send = true
+user_gutter_width = 30
+username_display = "username"
+
+[settings.image_preview]
+protocol.type = "sixel"
+size = { "width" = 66, "height" = 10 }
+
+[settings.sort]
+rooms = ["favorite", "lowpriority", "unread", "name"]
+members = ["power", "id"]
+
+[settings.users]
+"@user:matrix.org" = { "name" = "John Doe", "color" = "magenta" }
+
+[layout]
+style = "config"
+
+[[layout.tabs]]
+window = "iamb://dms"
+
+[[layout.tabs]]
+window = "iamb://rooms"
+
+[[layout.tabs]]
+split = [
+    { "window" = "#iamb-users:0x.badd.cafe" },
+    { "window" = "#iamb-dev:0x.badd.cafe" }
+]
+
+[macros.insert]
+"jj" = "<Esc>"
+
+[macros."normal|visual"]
+"V" = "<C-W>m"
+
+[dirs]
+cache = "/home/user/.cache/iamb/"
+logs = "/home/user/.local/share/iamb/logs/"
+downloads = "/home/user/Downloads/"

docs/iamb.1

@@ -0,0 +1,325 @@
+.\" iamb(1) manual page
+.\"
+.\" This manual page is written using the mdoc(7) macros. For more
+.\" information, see <https://manpages.bsd.lv/mdoc.html>.
+.\"
+.\" You can preview this file with:
+.\"     $ man ./docs/iamb.1
+.Dd Mar 24, 2024
+.Dt IAMB 1
+.Os
+.Sh NAME
+.Nm iamb
+.Nd a terminal-based client for Matrix for the Vim addict
+.Sh SYNOPSIS
+.Nm
+.Op Fl hV
+.Op Fl P Ar profile
+.Op Fl C Ar dir
+.Sh DESCRIPTION
+.Nm
+is a client for the Matrix communication protocol.
+It provides a terminal user interface with familiar Vim keybindings, and
+includes support for multiple profiles, threads, spaces, notifications,
+reactions, custom keybindings, and more.
+.Pp
+This manual page includes a quick rundown of the available commands in
+.Nm .
+For example usage and a full description of each one and its arguments, please
+refer to the full documentation online.
+.Sh OPTIONS
+.Bl -tag -width Ds
+.It Fl P , Fl Fl profile
+The profile to start
+.Nm
+with.
+If this flag is not specified,
+then it defaults to using
+.Sy default_profile
+(see
+.Xr iamb 5 ) .
+.It Fl C , Fl Fl config-directory
+Path to the directory the configuration file is located in.
+.It Fl h , Fl Fl help
+Show the help text and quit.
+.It Fl V , Fl Fl version
+Show the current
+.Nm
+version and quit.
+.El
+
+.Sh "GENERAL COMMANDS"
+.Bl -tag -width Ds
+.It Sy ":chats"
+View a list of joined rooms and direct messages.
+.It Sy ":dms"
+View a list of direct messages.
+.It Sy ":logout [user id]"
+Log out of
+.Nm .
+.It Sy ":rooms"
+View a list of joined rooms.
+.It Sy ":spaces"
+View a list of joined spaces.
+.It Sy ":unreads"
+View a list of unread rooms.
+.It Sy ":unreads clear"
+Mark all rooms as read.
+.It Sy ":welcome"
+View the startup Welcome window.
+.It Sy ":forget"
+Remove all left rooms from the internal database.
+.El
+
+.Sh "E2EE COMMANDS"
+.Bl -tag -width Ds
+.It Sy ":keys export [path] [passphrase]"
+Export and encrypt keys to
+.Pa path .
+.It Sy ":keys import [path] [passphrase]"
+Import and decrypt keys from
+.Pa path .
+.It Sy ":verify"
+View a list of ongoing E2EE verifications.
+.It Sy ":verify accept [key]"
+Accept a verification request.
+.It Sy ":verify cancel [key]"
+Cancel an in-progress verification.
+.It Sy ":verify confirm [key]"
+Confirm an in-progress verification.
+.It Sy ":verify mismatch [key]"
+Reject an in-progress verification due to mismatched Emoji.
+.It Sy ":verify request [user id]"
+Request a new verification with the specified user.
+.El
+
+.Sh "MESSAGE COMMANDS"
+.Bl -tag -width Ds
+.It Sy ":download [path]"
+Download an attachment from the selected message and save it to the optional path.
+.It Sy ":open [path]"
+Download and then open an attachment, or open a link in a message.
+.It Sy ":edit"
+Edit the selected message.
+.It Sy ":editor"
+Open an external
+.Ev $EDITOR
+to compose a message.
+.It Sy ":react [shortcode]"
+React to the selected message with an Emoji.
+.It Sy ":unreact [shortcode]"
+Remove your reaction from the selected message.
+When no arguments are given, remove all of your reactions from the message.
+.It Sy ":redact [reason]"
+Redact the selected message with the optional reason.
+.It Sy ":reply"
+Reply to the selected message.
+.It Sy ":cancel"
+Cancel the currently drafted message including replies.
+.It Sy ":replied"
+Go to the message the current message replied to.
+.It Sy ":upload [path]"
+Upload an attachment and send it to the currently selected room.
+.El
+
+.Sh "ROOM COMMANDS"
+.Bl -tag -width Ds
+.It Sy ":create [arguments]"
+Create a new room. Arguments can be
+.Dq ++alias=[alias] ,
+.Dq ++public ,
+.Dq ++space ,
+and
+.Dq ++encrypted .
+.It Sy ":invite accept"
+Accept an invitation to the currently focused room.
+.It Sy ":invite reject"
+Reject an invitation to the currently focused room.
+.It Sy ":invite send [user]"
+Send an invitation to a user to join the currently focused room.
+.It Sy ":join [room]"
+Join a room or open it if you are already joined.
+.It Sy ":leave"
+Leave the currently focused room.
+.It Sy ":members"
+View a list of members of the currently focused room.
+.It Sy ":room name set [name]"
+Set the name of the currently focused room.
+.It Sy ":room name unset"
+Unset the name of the currently focused room.
+.It Sy ":room dm set"
+Mark the currently focused room as a direct message.
+.It Sy ":room dm unset"
+Mark the currently focused room as a normal room.
+.It Sy ":room notify set [level]"
+Set a notification level for the currently focused room.
+Valid levels are
+.Dq mute ,
+.Dq mentions ,
+.Dq keywords ,
+and
+.Dq all .
+Note that
+.Dq mentions
+and
+.Dq keywords
+are aliases for the same behaviour.
+.It Sy ":room notify unset"
+Unset any room-level notification configuration.
+.It Sy ":room notify show"
+Show the current room-level notification configuration.
+If the room is using the account-level default, then this will print
+.Dq default .
+.It Sy ":room tag set [tag]"
+Add a tag to the currently focused room.
+.It Sy ":room tag unset [tag]"
+Remove a tag from the currently focused room.
+.It Sy ":room topic set [topic]"
+Set the topic of the currently focused room.
+.It Sy ":room topic unset"
+Unset the topic of the currently focused room.
+.It Sy ":room topic show"
+Show the topic of the currently focused room.
+.It Sy ":room alias set [alias]"
+Create and point the given alias to the room.
+.It Sy ":room alias unset [alias]"
+Delete the provided alias from the room's alternative alias list.
+.It Sy ":room alias show"
+Show alternative aliases to the room, if any are set.
+.It Sy ":room id show"
+Show the Matrix identifier for the room.
+.It Sy ":room canon set [alias]"
+Set the room's canonical alias to the one provided, and make the previous one an alternative alias.
+.It Sy ":room canon unset [alias]"
+Delete the room's canonical alias.
+.It Sy ":room canon show"
+Show the room's canonical alias, if any is set.
+.It Sy ":room ban [user] [reason]"
+Ban a user from this room with an optional reason.
+.It Sy ":room unban [user] [reason]"
+Unban a user from this room with an optional reason.
+.It Sy ":room kick [user] [reason]"
+Kick a user from this room with an optional reason.
+.El
+
+.Sh "SPACE COMMANDS"
+.Bl -tag -width Ds
+.It Sy ":space child set [room_id] [arguments]"
+Add a room to the currently focused space.
+.Dq ++suggested
+marks the room as a suggested child.
+.Dq ++order=[string]
+specifies a string by which children are lexicographically ordered.
+.It Sy ":space child remove"
+Remove the selected room from the currently focused space.
+.El
+
+.Sh "WINDOW COMMANDS"
+.Bl -tag -width Ds
+.It Sy ":horizontal [cmd]"
+Change the behaviour of the given command to be horizontal.
+.It Sy ":leftabove [cmd]"
+Change the behaviour of the given command to open before the current window.
+.It Sy ":only" , Sy ":on"
+Quit all but one window in the current tab.
+.It Sy ":quit" , Sy ":q"
+Quit a window.
+.It Sy ":quitall" , Sy ":qa"
+Quit all windows in the current tab.
+.It Sy ":resize"
+Resize a window.
+.It Sy ":rightbelow [cmd]"
+Change the behaviour of the given command to open after the current window.
+.It Sy ":split" , Sy ":sp"
+Horizontally split a window.
+.It Sy ":vertical [cmd]"
+Change the layout of the following command to be vertical.
+.It Sy ":vsplit" , Sy ":vsp"
+Vertically split a window.
+.El
+
+.Sh "TAB COMMANDS"
+.Bl -tag -width Ds
+.It Sy ":tab [cmd]"
+Run a command that opens a window in a new tab.
+.It Sy ":tabclose" , Sy ":tabc"
+Close a tab.
+.It Sy ":tabedit [room]" , Sy ":tabe"
+Open a room in a new tab.
+.It Sy ":tabrewind" , Sy ":tabr"
+Go to the first tab.
+.It Sy ":tablast" , Sy ":tabl"
+Go to the last tab.
+.It Sy ":tabnext" , Sy ":tabn"
+Go to the next tab.
+.It Sy ":tabonly" , Sy ":tabo"
+Close all but one tab.
+.It Sy ":tabprevious" , Sy ":tabp"
+Go to the preview tab.
+.El
+
+.Sh "SLASH COMMANDS"
+.Bl -tag -width Ds
+.It Sy "/markdown" , Sy "/md"
+Interpret the message body as Markdown markup.
+This is the default behaviour.
+.It Sy "/html" , Sy "/h"
+Send the message body as literal HTML.
+.It Sy "/plaintext" , Sy "/plain" , Sy "/p"
+Do not interpret any markup in the message body and send it as it is.
+.It Sy "/me"
+Send an emote message.
+.It Sy "/confetti"
+Produces no effect in
+.Nm ,
+but will display confetti in Matrix clients that support doing so.
+.It Sy "/fireworks"
+Produces no effect in
+.Nm ,
+but will display fireworks in Matrix clients that support doing so.
+.It Sy "/hearts"
+Produces no effect in
+.Nm ,
+but will display floating hearts in Matrix clients that support doing so.
+.It Sy "/rainfall"
+Produces no effect in
+.Nm ,
+but will display rainfall in Matrix clients that support doing so.
+.It Sy "/snowfall"
+Produces no effect in
+.Nm ,
+but will display snowfall in Matrix clients that support doing so.
+.It Sy "/spaceinvaders"
+Produces no effect in
+.Nm ,
+but will display aliens from Space Invaders in Matrix clients that support doing so.
+.El
+
+.Sh EXAMPLES
+.Ss Example 1: Starting with a specific profile
+To start with a profile named
+.Sy personal
+instead of the
+.Sy default_profile
+value:
+.Bd -literal -offset indent
+$ iamb -P personal
+.Ed
+.Ss Example 2: Using an alternate configuration directory
+By default,
+.Nm
+will use the XDG directories, but you may sometimes want to store
+your configuration elsewhere.
+.Bd -literal -offset indent
+$ iamb -C ~/src/iamb-dev/dev-config/
+.Ed
+.Sh "REPORTING BUGS"
+Please report bugs in
+.Nm
+or its manual pages at
+.Lk https://github.com/ulyssa/iamb/issues
+.Sh "SEE ALSO"
+.Xr iamb 5
+.Pp
+Extended documentation is available online at
+.Lk https://iamb.chat

docs/iamb.5

@@ -0,0 +1,590 @@
+.\" iamb(7) manual page
+.\"
+.\" This manual page is written using the mdoc(7) macros. For more
+.\" information, see <https://manpages.bsd.lv/mdoc.html>.
+.\"
+.\" You can preview this file with:
+.\"     $ man ./docs/iamb.1
+.Dd Mar 24, 2024
+.Dt IAMB 5
+.Os
+.Sh NAME
+.Nm config.toml
+.Nd configuration file for
+.Sy iamb
+.Sh DESCRIPTION
+Configuration must be placed under
+.Pa ~/.config/iamb/
+and named
+.Nm .
+(If
+.Ev $XDG_CONFIG_HOME
+is set, then
+.Sy iamb
+will look for a directory named
+.Pa iamb
+there instead.)
+.Pp
+Example configuration usually comes bundled with your installation and can
+typically be found in
+.Pa /usr/share/iamb .
+.Pp
+As implied by the filename, the configuration is formatted in TOML.
+It's structure and fields are described below.
+.Sh CONFIGURATION
+These options are sections at the top-level of the file.
+.Bl -tag -width Ds
+.It Sy profiles
+A map of profile names containing per-account information.
+See
+.Sx PROFILES .
+.It Sy default_profile
+The name of the default profile to connect to, unless overwritten by a
+commandline switch.
+It should be one of the names defined in the
+.Sy profiles
+section.
+.It Sy settings
+Overwrite general settings for
+.Sy iamb .
+See
+.Sx SETTINGS
+for a description of possible values.
+.It Sy layout
+Configure the default window layout to use when starting
+.Sy iamb .
+See
+.Sx "STARTUP LAYOUT"
+for more information on how to configure this object.
+.It Sy macros
+Map keybindings to other keybindings.
+See
+.Sx "CUSTOM KEYBINDINGS"
+for how to configure this object.
+.It Sy dirs
+Configure the directories to use for data, logs, and more.
+See
+.Sx DIRECTORIES
+for the possible values you can set in this object.
+.El
+.Sh PROFILES
+These options are configured as fields in the
+.Sy profiles
+object.
+.Bl -tag -width Ds
+.It Sy user_id
+The user ID to use when connecting to the server.
+For example "user" in "@user:matrix.org".
+.It Sy url
+The URL of the user's server.
+(For example "https://matrix.org" for "@user:matrix.org".)
+This is only needed when the server does not have a
+.Pa /.well-known/matrix/client
+entry.
+.El
+.Pp
+In addition to the above fields, you can also reuse the following fields to set
+per-profile overrides of their global values:
+.Bl -bullet -offset indent -width 1m
+.It
+.Sy dirs
+.It
+.Sy layout
+.It
+.Sy macros
+.It
+.Sy settings
+.El
+.Ss Example 1: A single profile
+.Bd -literal -offset indent
+[profiles.personal]
+user_id = "@user:matrix.org"
+.Ed
+.Ss Example 2: Two profiles with a default
+In the following example, there are two profiles,
+.Dq personal
+(set to be the default) and
+.Dq work .
+The
+.Dq work
+profile has an explicit URL set for its homeserver.
+.Bd -literal -offset indent
+default_profile = "personal"
+
+[profiles.personal]
+user_id = "@user:matrix.org"
+
+[profiles.work]
+user_id = "@user:example.com"
+url = "https://matrix.example.com"
+.Ed
+.Sh SETTINGS
+These options are configured as an object under the
+.Sy settings
+key and can be overridden as described in
+.Sx PROFILES .
+.Bl -tag -width Ds
+
+.It Sy external_edit_file_suffix
+Suffix to append to temporary file names when using the :editor command. Defaults to .md.
+
+.It Sy default_room
+The room to show by default instead of the
+.Sy :welcome
+window.
+
+.It Sy image_preview
+Enable image previews and configure it.
+An empty object will enable the feature with default settings, omitting it will disable the feature.
+The available fields in this object are:
+.Bl -tag -width Ds
+.It Sy size
+An optional object with
+.Sy width
+and
+.Sy height
+fields to specify the preview size in cells.
+Defaults to 66 and 10.
+.It Sy protocol
+An optional object to override settings that will normally be guessed automatically:
+.Bl -tag -width Ds
+.It Sy type
+An optional string set to one of the protocol types:
+.Dq Sy sixel ,
+.Dq Sy kitty , and
+.Dq Sy halfblocks .
+.It Sy font_size
+An optional list of two numbers representing font width and height in pixels.
+.El
+.El
+.It Sy log_level
+Specifies the lowest log level that should be shown.
+Possible values are:
+.Dq Sy trace ,
+.Dq Sy debug ,
+.Dq Sy info ,
+.Dq Sy warn , and
+.Dq Sy error .
+
+.It Sy message_shortcode_display
+Defines whether or not Emoji characters in messages should be replaced by their
+respective shortcodes.
+
+.It Sy message_user_color
+Defines whether or not the message body is colored like the username.
+
+.It Sy normal_after_send
+Defines whether to reset input to Normal mode after sending a message.
+
+.It Sy notifications
+When this subsection is present, you can enable and configure push notifications.
+See
+.Sx NOTIFICATIONS
+for more details.
+
+.It Sy open_command
+Defines a custom  command and its arguments to run when opening downloads instead of the default.
+(For example,
+.Sy ["my-open",\ "--file"] . )
+
+.It Sy reaction_display
+Defines whether or not reactions should be shown.
+
+.It Sy reaction_shortcode_display
+Defines whether or not reactions should be shown as their respective shortcode.
+
+.It Sy read_receipt_send
+Defines whether or not read confirmations are sent.
+
+.It Sy read_receipt_display
+Defines whether or not read confirmations are displayed.
+
+.It Sy request_timeout
+Defines the maximum time per request in seconds.
+
+.It Sy sort
+Configures how to sort the lists shown in windows like
+.Sy :rooms
+or
+.Sy :members .
+See
+.Sx "SORTING LISTS"
+for more details.
+
+.It Sy state_event_display
+Defines whether the state events like joined or left are shown.
+
+.It Sy typing_notice_send
+Defines whether or not the typing state is sent.
+
+.It Sy typing_notice_display
+Defines whether or not the typing state is displayed.
+
+.It Sy user
+Overrides values for the specified user.
+See
+.Sx "USER OVERRIDES"
+for details on the format.
+
+.It Sy username_display
+Defines how usernames are shown for message senders.
+Possible values are
+.Dq Sy username ,
+.Dq Sy localpart , or
+.Dq Sy displayname .
+
+.It Sy user_gutter_width
+Specify the width of the column where usernames are displayed in a room.
+Usernames that are too long are truncated.
+Defaults to 30.
+
+.It Sy tabstop
+Number of spaces that a <Tab> counts for.
+Defaults to 4.
+.El
+
+.Ss Example 1: Avoid showing Emojis (useful for terminals w/o support)
+.Bd -literal -offset indent
+[settings]
+username = "username"
+message_shortcode_display = true
+reaction_shortcode_display = true
+.Ed
+
+.Ss Example 2: Increase request timeout to 2 minutes for a slow homeserver
+.Bd -literal -offset indent
+[settings]
+request_timeout = 120
+.Ed
+
+.Sh NOTIFICATIONS
+
+The
+.Sy settings.notifications
+subsection allows configuring how notifications for new messages behave.
+
+The available fields in this subsection are:
+.Bl -tag -width Ds
+.It Sy enabled
+Defaults to
+.Sy false .
+Setting this field to
+.Sy true
+enables notifications.
+
+.It Sy via
+Defaults to
+.Dq Sy desktop
+to use the desktop mechanism (default).
+Setting this field to
+.Dq Sy bell
+will use the terminal bell instead.
+Both can be used via
+.Dq Sy desktop|bell .
+
+.It Sy show_message
+controls whether to show the message in the desktop notification, and defaults to
+.Sy true .
+Messages are truncated beyond a small length.
+The notification rules are stored server side, loaded once at startup, and are currently not configurable in iamb.
+In other words, you can simply change the rules with another client.
+.El
+
+.Ss Example 1: Enable notifications with default options
+.Bd -literal -offset indent
+[settings]
+notifications = {}
+.Ed
+.Ss Example 2: Enable notifications using terminal bell
+.Bd -literal -offset indent
+[settings.notifications]
+via = "bell"
+show_message = false
+.Ed
+
+.Sh "SORTING LISTS"
+
+The
+.Sy settings.sort
+subsection allows configuring how different windows have their contents sorted.
+
+Fields available within this subsection are:
+.Bl -tag -width Ds
+.It Sy rooms
+How to sort the
+.Sy :rooms
+window.
+Defaults to
+.Sy ["favorite",\ "lowpriority",\ "unread",\ "name"] .
+.It Sy chats
+How to sort the
+.Sy :chats
+window.
+Defaults to the
+.Sy rooms
+value.
+.It Sy dms
+How to sort the
+.Sy :dms
+window.
+Defaults to the
+.Sy rooms
+value.
+.It Sy spaces
+How to sort the
+.Sy :spaces
+window.
+Defaults to the
+.Sy rooms
+value.
+.It Sy members
+How to sort the
+.Sy :members
+window.
+Defaults to
+.Sy ["power",\ "id"] .
+.El
+
+The available values are:
+.Bl -tag -width Ds
+.It Sy favorite
+Put favorite rooms before other rooms.
+.It Sy lowpriority
+Put lowpriority rooms after other rooms.
+.It Sy name
+Sort rooms by alphabetically ascending room name.
+.It Sy alias
+Sort rooms by alphabetically ascending canonical room alias.
+.It Sy id
+Sort rooms by alphabetically ascending Matrix room identifier.
+.It Sy unread
+Put unread rooms before other rooms.
+.It Sy recent
+Sort rooms by most recent message timestamp.
+.It Sy invite
+Put invites before other rooms.
+.El
+.El
+
+.Ss Example 1: Group room members by their server first
+.Bd -literal -offset indent
+[settings.sort]
+members = ["server", "localpart"]
+.Ed
+
+.Sh "USER OVERRIDES"
+
+The
+.Sy settings.users
+subsections allows overriding how specific senders are displayed.
+Overrides are mapped onto Matrix User IDs such as
+.Sy @user:matrix.org ,
+and are typically written as inline tables containing the following keys:
+
+.Bl -tag -width Ds
+.It Sy name
+Change the display name of the user.
+
+.It Sy color
+Change the color the user is shown as.
+Possible values are:
+.Dq Sy black ,
+.Dq Sy blue ,
+.Dq Sy cyan ,
+.Dq Sy dark-gray ,
+.Dq Sy gray ,
+.Dq Sy green ,
+.Dq Sy light-blue ,
+.Dq Sy light-cyan ,
+.Dq Sy light-green ,
+.Dq Sy light-magenta ,
+.Dq Sy light-red ,
+.Dq Sy light-yellow ,
+.Dq Sy magenta ,
+.Dq Sy none ,
+.Dq Sy red ,
+.Dq Sy white ,
+and
+.Dq Sy yellow .
+.El
+
+.Ss Example 1: Override how @ada:example.com appears in chat
+.Bd -literal -offset indent
+[settings.users]
+"@ada:example.com" = { name = "Ada Lovelace", color = "light-red" }
+.Ed
+
+.Sh STARTUP LAYOUT
+
+The
+.Sy layout
+section allows configuring the initial set of tabs and windows to show when
+starting the client.
+
+.Bl -tag -width Ds
+.It Sy style
+Specifies what window layout to load when starting.
+Valid values are
+.Dq Sy restore
+to restore the layout from the last time the client was exited,
+.Dq Sy new
+to open a single window (uses the value of
+.Sy default_room
+if set), or
+.Dq Sy config
+to open the layout described under
+.Sy tabs .
+
+.It Sy tabs
+If
+.Sy style
+is set to
+.Sy config ,
+then this value will be used to open a set of tabs and windows at startup.
+Each object can contain either a
+.Sy window
+key specifying a username, room identifier or room alias to show, or a
+.Sy split
+key specifying an array of window objects.
+.El
+
+.Ss Example 1: Show a single room every startup
+.Bd -literal -offset indent
+[settings]
+default_room = "#iamb-users:0x.badd.cafe"
+
+[layout]
+style = "new"
+.Ed
+.Ss Example 2: Show a specific layout every startup
+.Bd -literal -offset indent
+[layout]
+style = "config"
+
+[[layout.tabs]]
+window = "iamb://dms"
+
+[[layout.tabs]]
+window = "iamb://rooms"
+
+[[layout.tabs]]
+split = [
+    { "window" = "#iamb-users:0x.badd.cafe" },
+    { "window" = "#iamb-dev:0x.badd.cafe" }
+]
+.Ed
+
+.Sh "CUSTOM KEYBINDINGS"
+
+The
+.Sy macros
+subsections allow configuring custom keybindings.
+Available subsections are:
+
+.Bl -tag -width Ds
+.It Sy insert , Sy i
+Map the key sequences in this section in
+.Sy Insert
+mode.
+
+.It Sy normal , Sy n
+Map the key sequences in this section in
+.Sy Normal
+mode.
+
+.It Sy visual , Sy v
+Map the key sequences in this section in
+.Sy Visual
+mode.
+
+.It Sy select
+Map the key sequences in this section in
+.Sy Select
+mode.
+
+.It Sy command , Sy c
+Map the key sequences in this section in
+.Sy Visual
+mode.
+
+.It Sy operator-pending
+Map the key sequences in this section in
+.Sy "Operator Pending"
+mode.
+.El
+
+Multiple modes can be given together by separating their names with
+.Dq Sy | .
+
+.Ss Example 1: Use "jj" to exit Insert mode
+.Bd -literal -offset indent
+[macros.insert]
+"jj" = "<Esc>"
+.Ed
+
+.Ss Example 2: Use "V" for switching between message bar and room history
+.Bd -literal -offset indent
+[macros."normal|visual"]
+"V" = "<C-W>m"
+.Ed
+
+.Sh DIRECTORIES
+
+Specifies the directories to save data in.
+Configured as an object under the key
+.Sy dirs .
+
+.Bl -tag -width Ds
+.It Sy cache
+Specifies where to store assets and temporary data in.
+(For example,
+.Sy image_preview
+and
+.Sy logs
+will also go in here by default.)
+Defaults to
+.Ev $XDG_CACHE_HOME/iamb .
+
+.It Sy data
+Specifies where to store persistent data in, such as E2EE room keys.
+Defaults to
+.Ev $XDG_DATA_HOME/iamb .
+
+.It Sy downloads
+Specifies where to store downloaded files.
+Defaults to
+.Ev $XDG_DOWNLOAD_DIR .
+
+.It Sy image_previews
+Specifies where to store automatically downloaded image previews.
+Defaults to
+.Ev ${cache}/image_preview_downloads .
+
+.It Sy logs
+Specifies where to store log files.
+Defaults to
+.Ev ${cache}/logs .
+.El
+.Sh FILES
+.Bl -tag -width Ds
+.It Pa ~/.config/iamb/config.toml
+The TOML configuration file that
+.Sy iamb
+loads by default.
+.It Pa ~/.config/iamb/config.json
+A JSON configuration file that
+.Sy iamb
+will load if the TOML one is not found.
+.It Pa /usr/share/iamb/config.example.toml
+A sample configuration file with examples of how to set different values.
+.El
+.Sh "REPORTING BUGS"
+Please report bugs in
+.Sy iamb
+or its manual pages at
+.Lk https://github.com/ulyssa/iamb/issues
+.Sh SEE ALSO
+.Xr iamb 1
+.Pp
+Extended documentation is available online at
+.Lk https://iamb.chat

docs/iamb.metainfo.xml

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="console-application">
+  <id>chat.iamb.iamb</id>
+
+  <name>iamb</name>
+  <summary>A terminal Matrix client for Vim addicts</summary>
+  <url type="homepage">https://iamb.chat</url>
+
+  <releases>
+    <release version="0.0.11" date="2026-01-19"/>
+    <release version="0.0.10" date="2024-08-20"/>
+    <release version="0.0.9" date="2024-03-28"/>
+  </releases>
+
+  <developer id="dev.ulyssa">
+    <name>Ulyssa</name>
+  </developer>
+
+  <developer_name>Ulyssa</developer_name>
+  <metadata_license>CC-BY-SA-4.0</metadata_license>
+  <project_license>Apache-2.0</project_license>
+
+  <content_rating type="oars-1.1">
+    <content_attribute id="social-chat">intense</content_attribute>
+  </content_rating>
+
+  <screenshots>
+    <screenshot type="default">
+      <image>https://iamb.chat/static/images/metainfo-screenshot.png</image>
+      <caption>Example screenshot of room and lists of rooms, spaces and members within iamb</caption>
+    </screenshot>
+  </screenshots>
+
+  <description>
+    <p>
+        iamb is a client for the Matrix communication protocol. It provides a
+        terminal user interface with familiar Vim keybindings, and includes
+        support for multiple profiles, threads, spaces, notifications,
+        reactions, custom keybindings, and more.
+    </p>
+  </description>
+
+  <launchable type="desktop-id">iamb.desktop</launchable>
+
+  <categories>
+    <category>Network</category>
+    <category>Chat</category>
+  </categories>
+
+  <provides>
+    <binary>iamb</binary>
+  </provides>
+</component>

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flake.lock

@@ -0,0 +1,116 @@
+{
+  "nodes": {
+    "crane": {
+      "locked": {
+        "lastModified": 1759893430,
+        "narHash": "sha256-yAy4otLYm9iZ+NtQwTMEbqHwswSFUbhn7x826RR6djw=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "1979a2524cb8c801520bd94c38bb3d5692419d93",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "fenix": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-analyzer-src": "rust-analyzer-src"
+      },
+      "locked": {
+        "lastModified": 1760510549,
+        "narHash": "sha256-NP+kmLMm7zSyv4Fufv+eSJXyqjLMUhUfPT6lXRlg/bU=",
+        "owner": "nix-community",
+        "repo": "fenix",
+        "rev": "ef7178cf086f267113b5c48fdeb6e510729c8214",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1760284886,
+        "narHash": "sha256-TK9Kr0BYBQ/1P5kAsnNQhmWWKgmZXwUQr4ZMjCzWf2c=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "cf3f5c4def3c7b5f1fc012b3d839575dbe552d43",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "crane": "crane",
+        "fenix": "fenix",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "rust-analyzer-src": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1760457219,
+        "narHash": "sha256-WJOUGx42hrhmvvYcGkwea+BcJuQJLcns849OnewQqX4=",
+        "owner": "rust-lang",
+        "repo": "rust-analyzer",
+        "rev": "8747cf81540bd1bbbab9ee2702f12c33aa887b46",
+        "type": "github"
+      },
+      "original": {
+        "owner": "rust-lang",
+        "ref": "nightly",
+        "repo": "rust-analyzer",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,111 @@
+{
+  description = "iamb";
+  nixConfig.bash-prompt = "\[nix-develop\]$ ";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+    crane.url = "github:ipetkov/crane";
+    fenix = {
+      url = "github:nix-community/fenix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs =
+    {
+      self,
+      nixpkgs,
+      crane,
+      flake-utils,
+      fenix,
+      ...
+    }:
+    flake-utils.lib.eachDefaultSystem (
+      system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+        inherit (pkgs) lib;
+
+        rustToolchain = fenix.packages.${system}.fromToolchainFile {
+          file = ./rust-toolchain.toml;
+          # When the file changes, this hash must be updated.
+          sha256 = "sha256-Qxt8XAuaUR2OMdKbN4u8dBJOhSHxS+uS06Wl9+flVEk=";
+        };
+
+        # Nightly toolchain for rustfmt (pinned to current flake lock)
+        # Note that the github CI uses "current nightly" for formatting, it 's not pinned.
+        rustNightly = fenix.packages.${system}.latest;
+
+        craneLib = (crane.mkLib pkgs).overrideToolchain rustToolchain;
+        craneLibNightly = (crane.mkLib pkgs).overrideToolchain rustNightly.toolchain;
+
+        src = lib.fileset.toSource {
+          root = ./.;
+          fileset = lib.fileset.unions [
+            (craneLib.fileset.commonCargoSources ./.)
+            ./src/windows/welcome.md
+          ];
+        };
+
+        commonArgs = {
+          inherit src;
+          strictDeps = true;
+          pname = "iamb";
+          version = self.shortRev or self.dirtyShortRev;
+        };
+
+        # Build *just* the cargo dependencies, so we can reuse
+        # all of that work (e.g. via cachix) when running in CI
+        cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+
+        # Build the actual crate
+        iamb = craneLib.buildPackage (commonArgs // {
+          inherit cargoArtifacts;
+        });
+      in
+      {
+        checks = {
+          # Build the crate as part of `nix flake check`
+          inherit iamb;
+
+          iamb-clippy = craneLib.cargoClippy (commonArgs // {
+            inherit cargoArtifacts;
+            cargoClippyExtraArgs = "--all-targets -- --deny warnings";
+          });
+
+          iamb-fmt = craneLibNightly.cargoFmt {
+            inherit src;
+          };
+
+          iamb-nextest = craneLib.cargoNextest (commonArgs // {
+            inherit cargoArtifacts;
+            partitions = 1;
+            partitionType = "count";
+          });
+        };
+
+        packages.default = iamb;
+
+        apps.default = flake-utils.lib.mkApp {
+          drv = iamb;
+        };
+
+        devShells.default = craneLib.devShell {
+          # Inherit inputs from checks
+          checks = self.checks.${system};
+
+          packages = with pkgs; [
+            cargo-tarpaulin
+            cargo-watch
+            sqlite
+          ];
+
+          shellHook = ''
+            # Prepend nightly rustfmt to PATH.
+            export PATH="${rustNightly.rustfmt}/bin:$PATH"
+          '';
+        };
+      }
+    );
+}

iamb.desktop

@@ -0,0 +1,12 @@
+[Desktop Entry]
+Categories=Network;InstantMessaging;Chat;
+Comment=A Matrix client for Vim addicts
+Exec=iamb
+GenericName=Matrix Client
+Keywords=Matrix;matrix.org;chat;communications;talk;
+Name=iamb
+Icon=iamb
+StartupNotify=false
+Terminal=true
+TryExec=iamb
+Type=Application

rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "1.88"
+components = [ "clippy" ]

src/keybindings.rs

@@ -1,62 +1,89 @@
+//! # Default Keybindings
+//!
+//! The keybindings are set up here. We define some iamb-specific keybindings, but the default Vim
+//! keys come from [modalkit::env::vim::keybindings].
 use modalkit::{
-    editing::action::WindowAction,
-    editing::base::WordStyle,
+    actions::{InsertTextAction, MacroAction, WindowAction},
     env::vim::keybindings::{InputStep, VimBindings},
     env::vim::VimMode,
-    input::bindings::{EdgeEvent, EdgeRepeat, InputBindings},
-    input::key::TerminalKey,
+    env::CommonKeyClass,
+    key::TerminalKey,
+    keybindings::{EdgeEvent, EdgeRepeat, InputBindings},
+    prelude::*,
 };
 
-use crate::base::{IambAction, Keybindings};
+use crate::base::{IambAction, IambInfo, Keybindings, MATRIX_ID_WORD};
+use crate::config::{ApplicationSettings, Keys};
 
-/// Find the boundaries for a Matrix username, room alias, or room ID.
-///
-/// Technically "[" and "]" should be here since IPv6 addresses are allowed
-/// in the server name, but in practice that should be uncommon, and people
-/// can just use `gf` and friends in Visual mode instead.
-fn is_mxid_char(c: char) -> bool {
-    return c >= 'a' && c <= 'z' ||
-        c >= 'A' && c <= 'Z' ||
-        c >= '0' && c <= '9' ||
-        ":-./@_#!".contains(c);
+pub type IambStep = InputStep<IambInfo>;
+
+fn once(key: &TerminalKey) -> (EdgeRepeat, EdgeEvent<TerminalKey, CommonKeyClass>) {
+    (EdgeRepeat::Once, EdgeEvent::Key(*key))
 }
 
+/// Initialize the default keybinding state.
 pub fn setup_keybindings() -> Keybindings {
     let mut ism = Keybindings::empty();
 
     let vim = VimBindings::default()
         .submit_on_enter()
-        .cursor_open(WordStyle::CharSet(is_mxid_char));
+        .cursor_open(MATRIX_ID_WORD.clone());
 
     vim.setup(&mut ism);
 
-    let ctrl_w = EdgeEvent::Key("<C-W>".parse::<TerminalKey>().unwrap());
-    let ctrl_m = EdgeEvent::Key("<C-M>".parse::<TerminalKey>().unwrap());
-    let ctrl_z = EdgeEvent::Key("<C-Z>".parse::<TerminalKey>().unwrap());
-    let key_m_lc = EdgeEvent::Key("m".parse::<TerminalKey>().unwrap());
-    let key_z_lc = EdgeEvent::Key("z".parse::<TerminalKey>().unwrap());
+    let ctrl_w = "<C-W>".parse::<TerminalKey>().unwrap();
+    let ctrl_m = "<C-M>".parse::<TerminalKey>().unwrap();
+    let ctrl_z = "<C-Z>".parse::<TerminalKey>().unwrap();
+    let key_m_lc = "m".parse::<TerminalKey>().unwrap();
+    let key_z_lc = "z".parse::<TerminalKey>().unwrap();
+    let shift_enter = "<S-Enter>".parse::<TerminalKey>().unwrap();
 
-    let cwz = vec![
-        (EdgeRepeat::Once, ctrl_w.clone()),
-        (EdgeRepeat::Once, key_z_lc),
-    ];
-    let cwcz = vec![
-        (EdgeRepeat::Once, ctrl_w.clone()),
-        (EdgeRepeat::Once, ctrl_z),
-    ];
-    let zoom = InputStep::new().actions(vec![WindowAction::ZoomToggle.into()]);
+    let cwz = vec![once(&ctrl_w), once(&key_z_lc)];
+    let cwcz = vec![once(&ctrl_w), once(&ctrl_z)];
+    let zoom = IambStep::new()
+        .actions(vec![WindowAction::ZoomToggle.into()])
+        .goto(VimMode::Normal);
 
     ism.add_mapping(VimMode::Normal, &cwz, &zoom);
+    ism.add_mapping(VimMode::Visual, &cwz, &zoom);
     ism.add_mapping(VimMode::Normal, &cwcz, &zoom);
+    ism.add_mapping(VimMode::Visual, &cwcz, &zoom);
 
-    let cwm = vec![
-        (EdgeRepeat::Once, ctrl_w.clone()),
-        (EdgeRepeat::Once, key_m_lc),
-    ];
-    let cwcm = vec![(EdgeRepeat::Once, ctrl_w), (EdgeRepeat::Once, ctrl_m)];
-    let stoggle = InputStep::new().actions(vec![IambAction::ToggleScrollbackFocus.into()]);
+    let cwm = vec![once(&ctrl_w), once(&key_m_lc)];
+    let cwcm = vec![once(&ctrl_w), once(&ctrl_m)];
+    let stoggle = IambStep::new()
+        .actions(vec![IambAction::ToggleScrollbackFocus.into()])
+        .goto(VimMode::Normal);
     ism.add_mapping(VimMode::Normal, &cwm, &stoggle);
+    ism.add_mapping(VimMode::Visual, &cwm, &stoggle);
     ism.add_mapping(VimMode::Normal, &cwcm, &stoggle);
+    ism.add_mapping(VimMode::Visual, &cwcm, &stoggle);
 
-    return ism;
+    let shift_enter = vec![once(&shift_enter)];
+    let newline = IambStep::new().actions(vec![InsertTextAction::Type(
+        Char::Single('\n').into(),
+        MoveDir1D::Previous,
+        1.into(),
+    )
+    .into()]);
+    ism.add_mapping(VimMode::Insert, &cwm, &newline);
+    ism.add_mapping(VimMode::Insert, &shift_enter, &newline);
+
+    ism
+}
+
+impl InputBindings<TerminalKey, IambStep> for ApplicationSettings {
+    fn setup(&self, bindings: &mut Keybindings) {
+        for (modes, keys) in &self.macros {
+            for (Keys(input, _), Keys(_, run)) in keys {
+                let act = MacroAction::Run(run.clone(), Count::Contextual);
+                let step = IambStep::new().actions(vec![act.into()]);
+                let input = input.iter().map(once).collect::<Vec<_>>();
+
+                for mode in &modes.0 {
+                    bindings.add_mapping(*mode, &input, &step);
+                }
+            }
+        }
+    }
 }

src/message.rs

@@ -1,650 +0,0 @@
-use std::borrow::Cow;
-use std::cmp::{Ord, Ordering, PartialOrd};
-use std::collections::hash_map::DefaultHasher;
-use std::collections::BTreeMap;
-use std::convert::TryFrom;
-use std::hash::{Hash, Hasher};
-use std::str::Lines;
-
-use chrono::{DateTime, NaiveDateTime, Utc};
-use unicode_segmentation::UnicodeSegmentation;
-use unicode_width::UnicodeWidthStr;
-
-use matrix_sdk::ruma::{
-    events::{
-        room::message::{MessageType, RoomMessageEventContent},
-        MessageLikeEvent,
-    },
-    MilliSecondsSinceUnixEpoch,
-    OwnedEventId,
-    OwnedUserId,
-    UInt,
-};
-
-use modalkit::tui::{
-    style::{Color, Modifier as StyleModifier, Style},
-    text::{Span, Spans, Text},
-};
-
-use modalkit::editing::{base::ViewportContext, cursor::Cursor};
-
-use crate::base::{IambResult, RoomInfo};
-
-pub type MessageEvent = MessageLikeEvent<RoomMessageEventContent>;
-pub type MessageFetchResult = IambResult<(Option<String>, Vec<MessageEvent>)>;
-pub type MessageKey = (MessageTimeStamp, OwnedEventId);
-pub type Messages = BTreeMap<MessageKey, Message>;
-
-const COLORS: [Color; 13] = [
-    Color::Blue,
-    Color::Cyan,
-    Color::Green,
-    Color::LightBlue,
-    Color::LightGreen,
-    Color::LightCyan,
-    Color::LightMagenta,
-    Color::LightRed,
-    Color::LightYellow,
-    Color::Magenta,
-    Color::Red,
-    Color::Reset,
-    Color::Yellow,
-];
-
-const USER_GUTTER: usize = 30;
-const TIME_GUTTER: usize = 12;
-const MIN_MSG_LEN: usize = 30;
-
-const USER_GUTTER_EMPTY: &str = "                              ";
-const USER_GUTTER_EMPTY_SPAN: Span<'static> = Span {
-    content: Cow::Borrowed(USER_GUTTER_EMPTY),
-    style: Style {
-        fg: None,
-        bg: None,
-        add_modifier: StyleModifier::empty(),
-        sub_modifier: StyleModifier::empty(),
-    },
-};
-
-pub(crate) fn user_color(user: &str) -> Color {
-    let mut hasher = DefaultHasher::new();
-    user.hash(&mut hasher);
-    let color = hasher.finish() as usize % COLORS.len();
-
-    COLORS[color]
-}
-
-pub(crate) fn user_style(user: &str) -> Style {
-    Style::default().fg(user_color(user)).add_modifier(StyleModifier::BOLD)
-}
-
-struct WrappedLinesIterator<'a> {
-    iter: Lines<'a>,
-    curr: Option<&'a str>,
-    width: usize,
-}
-
-impl<'a> WrappedLinesIterator<'a> {
-    fn new(input: &'a str, width: usize) -> Self {
-        WrappedLinesIterator { iter: input.lines(), curr: None, width }
-    }
-}
-
-impl<'a> Iterator for WrappedLinesIterator<'a> {
-    type Item = (&'a str, usize);
-
-    fn next(&mut self) -> Option<Self::Item> {
-        if self.curr.is_none() {
-            self.curr = self.iter.next();
-        }
-
-        if let Some(s) = self.curr.take() {
-            let width = UnicodeWidthStr::width(s);
-
-            if width <= self.width {
-                return Some((s, width));
-            } else {
-                // Find where to split the line.
-                let mut width = 0;
-                let mut idx = 0;
-
-                for (i, g) in UnicodeSegmentation::grapheme_indices(s, true) {
-                    let gw = UnicodeWidthStr::width(g);
-                    idx = i;
-
-                    if width + gw > self.width {
-                        break;
-                    }
-
-                    width += gw;
-                }
-
-                self.curr = Some(&s[idx..]);
-
-                return Some((&s[..idx], width));
-            }
-        } else {
-            return None;
-        }
-    }
-}
-
-fn wrap(input: &str, width: usize) -> WrappedLinesIterator<'_> {
-    WrappedLinesIterator::new(input, width)
-}
-
-fn space(width: usize) -> String {
-    " ".repeat(width)
-}
-
-#[derive(thiserror::Error, Debug)]
-pub enum TimeStampIntError {
-    #[error("Integer conversion error: {0}")]
-    IntError(#[from] std::num::TryFromIntError),
-
-    #[error("UInt conversion error: {0}")]
-    UIntError(<UInt as TryFrom<u64>>::Error),
-}
-
-#[derive(Clone, Copy, Debug, Eq, PartialEq)]
-pub enum MessageTimeStamp {
-    OriginServer(UInt),
-    LocalEcho,
-}
-
-impl MessageTimeStamp {
-    fn show(&self) -> Option<Span> {
-        match self {
-            MessageTimeStamp::OriginServer(ts) => {
-                let time = i64::from(*ts) / 1000;
-                let time = NaiveDateTime::from_timestamp_opt(time, 0)?;
-                let time = DateTime::<Utc>::from_utc(time, Utc);
-                let time = time.format("%T");
-                let time = format!("  [{}]", time);
-
-                Span::raw(time).into()
-            },
-            MessageTimeStamp::LocalEcho => None,
-        }
-    }
-
-    fn is_local_echo(&self) -> bool {
-        matches!(self, MessageTimeStamp::LocalEcho)
-    }
-}
-
-impl Ord for MessageTimeStamp {
-    fn cmp(&self, other: &Self) -> Ordering {
-        match (self, other) {
-            (MessageTimeStamp::OriginServer(_), MessageTimeStamp::LocalEcho) => Ordering::Less,
-            (MessageTimeStamp::OriginServer(a), MessageTimeStamp::OriginServer(b)) => a.cmp(b),
-            (MessageTimeStamp::LocalEcho, MessageTimeStamp::OriginServer(_)) => Ordering::Greater,
-            (MessageTimeStamp::LocalEcho, MessageTimeStamp::LocalEcho) => Ordering::Equal,
-        }
-    }
-}
-
-impl PartialOrd for MessageTimeStamp {
-    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        self.cmp(other).into()
-    }
-}
-
-impl From<MilliSecondsSinceUnixEpoch> for MessageTimeStamp {
-    fn from(millis: MilliSecondsSinceUnixEpoch) -> Self {
-        MessageTimeStamp::OriginServer(millis.0)
-    }
-}
-
-impl TryFrom<&MessageTimeStamp> for usize {
-    type Error = TimeStampIntError;
-
-    fn try_from(ts: &MessageTimeStamp) -> Result<Self, Self::Error> {
-        let n = match ts {
-            MessageTimeStamp::LocalEcho => 0,
-            MessageTimeStamp::OriginServer(u) => usize::try_from(u64::from(*u))?,
-        };
-
-        Ok(n)
-    }
-}
-
-impl TryFrom<usize> for MessageTimeStamp {
-    type Error = TimeStampIntError;
-
-    fn try_from(u: usize) -> Result<Self, Self::Error> {
-        if u == 0 {
-            Ok(MessageTimeStamp::LocalEcho)
-        } else {
-            let n = u64::try_from(u)?;
-            let n = UInt::try_from(n).map_err(TimeStampIntError::UIntError)?;
-
-            Ok(MessageTimeStamp::OriginServer(n))
-        }
-    }
-}
-
-#[derive(Clone, Debug, Default, Eq, PartialEq)]
-pub struct MessageCursor {
-    /// When timestamp is None, the corner is determined by moving backwards from
-    /// the most recently received message.
-    pub timestamp: Option<MessageKey>,
-
-    /// A row within the [Text] representation of a [Message].
-    pub text_row: usize,
-}
-
-impl MessageCursor {
-    pub fn new(timestamp: MessageKey, text_row: usize) -> Self {
-        MessageCursor { timestamp: Some(timestamp), text_row }
-    }
-
-    /// Get a cursor that refers to the most recent message.
-    pub fn latest() -> Self {
-        MessageCursor::default()
-    }
-
-    pub fn to_key<'a>(&'a self, info: &'a RoomInfo) -> Option<&'a MessageKey> {
-        if let Some(ref key) = self.timestamp {
-            Some(key)
-        } else {
-            Some(info.messages.last_key_value()?.0)
-        }
-    }
-
-    pub fn from_cursor(cursor: &Cursor, info: &RoomInfo) -> Option<Self> {
-        let ev_hash = u64::try_from(cursor.get_x()).ok()?;
-        let ev_term = OwnedEventId::try_from("$").ok()?;
-
-        let ts_start = MessageTimeStamp::try_from(cursor.get_y()).ok()?;
-        let start = (ts_start, ev_term);
-        let mut mc = None;
-
-        for ((ts, event_id), _) in info.messages.range(start..) {
-            let mut hasher = DefaultHasher::new();
-            event_id.hash(&mut hasher);
-
-            if hasher.finish() == ev_hash {
-                mc = Self::from((*ts, event_id.clone())).into();
-                break;
-            }
-
-            if mc.is_none() {
-                mc = Self::from((*ts, event_id.clone())).into();
-            }
-
-            if ts > &ts_start {
-                break;
-            }
-        }
-
-        return mc;
-    }
-
-    pub fn to_cursor(&self, info: &RoomInfo) -> Option<Cursor> {
-        let (ts, event_id) = self.to_key(info)?;
-
-        let y: usize = usize::try_from(ts).ok()?;
-
-        let mut hasher = DefaultHasher::new();
-        event_id.hash(&mut hasher);
-        let x = usize::try_from(hasher.finish()).ok()?;
-
-        Cursor::new(y, x).into()
-    }
-}
-
-impl From<Option<MessageKey>> for MessageCursor {
-    fn from(key: Option<MessageKey>) -> Self {
-        MessageCursor { timestamp: key, text_row: 0 }
-    }
-}
-
-impl From<MessageKey> for MessageCursor {
-    fn from(key: MessageKey) -> Self {
-        MessageCursor { timestamp: Some(key), text_row: 0 }
-    }
-}
-
-impl Ord for MessageCursor {
-    fn cmp(&self, other: &Self) -> Ordering {
-        match (&self.timestamp, &other.timestamp) {
-            (None, None) => self.text_row.cmp(&other.text_row),
-            (None, Some(_)) => Ordering::Greater,
-            (Some(_), None) => Ordering::Less,
-            (Some(st), Some(ot)) => {
-                let pcmp = st.cmp(ot);
-                let tcmp = self.text_row.cmp(&other.text_row);
-
-                pcmp.then(tcmp)
-            },
-        }
-    }
-}
-
-impl PartialOrd for MessageCursor {
-    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        self.cmp(other).into()
-    }
-}
-
-#[derive(Clone)]
-pub enum MessageContent {
-    Original(Box<RoomMessageEventContent>),
-    Redacted,
-}
-
-impl AsRef<str> for MessageContent {
-    fn as_ref(&self) -> &str {
-        match self {
-            MessageContent::Original(ev) => {
-                match &ev.msgtype {
-                    MessageType::Text(content) => {
-                        return content.body.as_ref();
-                    },
-                    MessageType::Emote(content) => {
-                        return content.body.as_ref();
-                    },
-                    MessageType::Notice(content) => {
-                        return content.body.as_str();
-                    },
-                    MessageType::ServerNotice(_) => {
-                        // XXX: implement
-
-                        return "[server notice]";
-                    },
-                    MessageType::VerificationRequest(_) => {
-                        // XXX: implement
-
-                        return "[verification request]";
-                    },
-                    MessageType::Audio(..) => {
-                        return "[audio]";
-                    },
-                    MessageType::File(..) => {
-                        return "[file]";
-                    },
-                    MessageType::Image(..) => {
-                        return "[image]";
-                    },
-                    MessageType::Video(..) => {
-                        return "[video]";
-                    },
-                    _ => return "[unknown message type]",
-                }
-            },
-            MessageContent::Redacted => "[redacted]",
-        }
-    }
-}
-
-#[derive(Clone)]
-pub struct Message {
-    pub content: MessageContent,
-    pub sender: OwnedUserId,
-    pub timestamp: MessageTimeStamp,
-}
-
-impl Message {
-    pub fn new(content: MessageContent, sender: OwnedUserId, timestamp: MessageTimeStamp) -> Self {
-        Message { content, sender, timestamp }
-    }
-
-    pub fn show(&self, selected: bool, vwctx: &ViewportContext<MessageCursor>) -> Text {
-        let width = vwctx.get_width();
-        let msg = self.as_ref();
-
-        let mut lines = vec![];
-
-        let mut style = Style::default();
-
-        if selected {
-            style = style.add_modifier(StyleModifier::REVERSED)
-        }
-
-        if self.timestamp.is_local_echo() {
-            style = style.add_modifier(StyleModifier::ITALIC);
-        }
-
-        if USER_GUTTER + TIME_GUTTER + MIN_MSG_LEN <= width {
-            let lw = width - USER_GUTTER - TIME_GUTTER;
-
-            for (i, (line, w)) in wrap(msg, lw).enumerate() {
-                let line = Span::styled(line, style);
-                let trailing = Span::styled(space(lw.saturating_sub(w)), style);
-
-                if i == 0 {
-                    let user = self.show_sender(true);
-
-                    if let Some(time) = self.timestamp.show() {
-                        lines.push(Spans(vec![user, line, trailing, time]))
-                    } else {
-                        lines.push(Spans(vec![user, line, trailing]))
-                    }
-                } else {
-                    let space = USER_GUTTER_EMPTY_SPAN;
-
-                    lines.push(Spans(vec![space, line, trailing]))
-                }
-            }
-        } else if USER_GUTTER + MIN_MSG_LEN <= width {
-            let lw = width - USER_GUTTER;
-
-            for (i, (line, w)) in wrap(msg, lw).enumerate() {
-                let line = Span::styled(line, style);
-                let trailing = Span::styled(space(lw.saturating_sub(w)), style);
-
-                let prefix = if i == 0 {
-                    self.show_sender(true)
-                } else {
-                    USER_GUTTER_EMPTY_SPAN
-                };
-
-                lines.push(Spans(vec![prefix, line, trailing]))
-            }
-        } else {
-            lines.push(Spans::from(self.show_sender(false)));
-
-            for (line, _) in wrap(msg, width.saturating_sub(2)) {
-                let line = format!("  {}", line);
-                let line = Span::styled(line, style);
-
-                lines.push(Spans(vec![line]))
-            }
-        }
-
-        return Text { lines };
-    }
-
-    fn show_sender(&self, align_right: bool) -> Span {
-        let sender = self.sender.to_string();
-        let style = user_style(sender.as_str());
-
-        let sender = if align_right {
-            format!("{: >width$}  ", sender, width = 28)
-        } else {
-            format!("{: <width$}  ", sender, width = 28)
-        };
-
-        Span::styled(sender, style)
-    }
-}
-
-impl From<MessageEvent> for Message {
-    fn from(event: MessageEvent) -> Self {
-        match event {
-            MessageLikeEvent::Original(ev) => {
-                let content = MessageContent::Original(ev.content.into());
-
-                Message::new(content, ev.sender, ev.origin_server_ts.into())
-            },
-            MessageLikeEvent::Redacted(ev) => {
-                Message::new(MessageContent::Redacted, ev.sender, ev.origin_server_ts.into())
-            },
-        }
-    }
-}
-
-impl AsRef<str> for Message {
-    fn as_ref(&self) -> &str {
-        self.content.as_ref()
-    }
-}
-
-impl ToString for Message {
-    fn to_string(&self) -> String {
-        self.as_ref().to_string()
-    }
-}
-
-#[cfg(test)]
-pub mod tests {
-    use super::*;
-    use crate::tests::*;
-
-    #[test]
-    fn test_wrapped_lines_ascii() {
-        let s = "hello world!\nabcdefghijklmnopqrstuvwxyz\ngoodbye";
-
-        let mut iter = wrap(s, 100);
-        assert_eq!(iter.next(), Some(("hello world!", 12)));
-        assert_eq!(iter.next(), Some(("abcdefghijklmnopqrstuvwxyz", 26)));
-        assert_eq!(iter.next(), Some(("goodbye", 7)));
-        assert_eq!(iter.next(), None);
-
-        let mut iter = wrap(s, 5);
-        assert_eq!(iter.next(), Some(("hello", 5)));
-        assert_eq!(iter.next(), Some((" worl", 5)));
-        assert_eq!(iter.next(), Some(("d!", 2)));
-        assert_eq!(iter.next(), Some(("abcde", 5)));
-        assert_eq!(iter.next(), Some(("fghij", 5)));
-        assert_eq!(iter.next(), Some(("klmno", 5)));
-        assert_eq!(iter.next(), Some(("pqrst", 5)));
-        assert_eq!(iter.next(), Some(("uvwxy", 5)));
-        assert_eq!(iter.next(), Some(("z", 1)));
-        assert_eq!(iter.next(), Some(("goodb", 5)));
-        assert_eq!(iter.next(), Some(("ye", 2)));
-        assert_eq!(iter.next(), None);
-    }
-
-    #[test]
-    fn test_wrapped_lines_unicode() {
-        let s = "ＣＨＩＣＫＥＮ";
-
-        let mut iter = wrap(s, 14);
-        assert_eq!(iter.next(), Some((s, 14)));
-        assert_eq!(iter.next(), None);
-
-        let mut iter = wrap(s, 5);
-        assert_eq!(iter.next(), Some(("ＣＨ", 4)));
-        assert_eq!(iter.next(), Some(("ＩＣ", 4)));
-        assert_eq!(iter.next(), Some(("ＫＥ", 4)));
-        assert_eq!(iter.next(), Some(("Ｎ", 2)));
-        assert_eq!(iter.next(), None);
-    }
-
-    #[test]
-    fn test_mc_cmp() {
-        let mc1 = MessageCursor::from(MSG1_KEY.clone());
-        let mc2 = MessageCursor::from(MSG2_KEY.clone());
-        let mc3 = MessageCursor::from(MSG3_KEY.clone());
-        let mc4 = MessageCursor::from(MSG4_KEY.clone());
-        let mc5 = MessageCursor::from(MSG5_KEY.clone());
-
-        // Everything is equal to itself.
-        assert_eq!(mc1.cmp(&mc1), Ordering::Equal);
-        assert_eq!(mc2.cmp(&mc2), Ordering::Equal);
-        assert_eq!(mc3.cmp(&mc3), Ordering::Equal);
-        assert_eq!(mc4.cmp(&mc4), Ordering::Equal);
-        assert_eq!(mc5.cmp(&mc5), Ordering::Equal);
-
-        // Local echo is always greater than an origin server timestamp.
-        assert_eq!(mc1.cmp(&mc2), Ordering::Greater);
-        assert_eq!(mc1.cmp(&mc3), Ordering::Greater);
-        assert_eq!(mc1.cmp(&mc4), Ordering::Greater);
-        assert_eq!(mc1.cmp(&mc5), Ordering::Greater);
-
-        // mc2 is the smallest timestamp.
-        assert_eq!(mc2.cmp(&mc1), Ordering::Less);
-        assert_eq!(mc2.cmp(&mc3), Ordering::Less);
-        assert_eq!(mc2.cmp(&mc4), Ordering::Less);
-        assert_eq!(mc2.cmp(&mc5), Ordering::Less);
-
-        // mc3 should be less than mc4 because of its event ID.
-        assert_eq!(mc3.cmp(&mc1), Ordering::Less);
-        assert_eq!(mc3.cmp(&mc2), Ordering::Greater);
-        assert_eq!(mc3.cmp(&mc4), Ordering::Less);
-        assert_eq!(mc3.cmp(&mc5), Ordering::Less);
-
-        // mc4 should be greater than mc3 because of its event ID.
-        assert_eq!(mc4.cmp(&mc1), Ordering::Less);
-        assert_eq!(mc4.cmp(&mc2), Ordering::Greater);
-        assert_eq!(mc4.cmp(&mc3), Ordering::Greater);
-        assert_eq!(mc4.cmp(&mc5), Ordering::Less);
-
-        // mc5 is the greatest OriginServer timestamp.
-        assert_eq!(mc5.cmp(&mc1), Ordering::Less);
-        assert_eq!(mc5.cmp(&mc2), Ordering::Greater);
-        assert_eq!(mc5.cmp(&mc3), Ordering::Greater);
-        assert_eq!(mc5.cmp(&mc4), Ordering::Greater);
-    }
-
-    #[test]
-    fn test_mc_to_key() {
-        let info = mock_room();
-        let mc1 = MessageCursor::from(MSG1_KEY.clone());
-        let mc2 = MessageCursor::from(MSG2_KEY.clone());
-        let mc3 = MessageCursor::from(MSG3_KEY.clone());
-        let mc4 = MessageCursor::from(MSG4_KEY.clone());
-        let mc5 = MessageCursor::from(MSG5_KEY.clone());
-        let mc6 = MessageCursor::latest();
-
-        let k1 = mc1.to_key(&info).unwrap();
-        let k2 = mc2.to_key(&info).unwrap();
-        let k3 = mc3.to_key(&info).unwrap();
-        let k4 = mc4.to_key(&info).unwrap();
-        let k5 = mc5.to_key(&info).unwrap();
-        let k6 = mc6.to_key(&info).unwrap();
-
-        // These should all be equal to their MSGN_KEYs.
-        assert_eq!(k1, &MSG1_KEY.clone());
-        assert_eq!(k2, &MSG2_KEY.clone());
-        assert_eq!(k3, &MSG3_KEY.clone());
-        assert_eq!(k4, &MSG4_KEY.clone());
-        assert_eq!(k5, &MSG5_KEY.clone());
-
-        // MessageCursor::latest() turns into the largest key (our local echo message).
-        assert_eq!(k6, &MSG1_KEY.clone());
-
-        // MessageCursor::latest() fails to convert for a room w/o messages.
-        let info_empty = RoomInfo::default();
-        assert_eq!(mc6.to_key(&info_empty), None);
-    }
-
-    #[test]
-    fn test_mc_to_from_cursor() {
-        let info = mock_room();
-        let mc1 = MessageCursor::from(MSG1_KEY.clone());
-        let mc2 = MessageCursor::from(MSG2_KEY.clone());
-        let mc3 = MessageCursor::from(MSG3_KEY.clone());
-        let mc4 = MessageCursor::from(MSG4_KEY.clone());
-        let mc5 = MessageCursor::from(MSG5_KEY.clone());
-        let mc6 = MessageCursor::latest();
-
-        let identity = |mc: &MessageCursor| {
-            let c = mc.to_cursor(&info).unwrap();
-
-            MessageCursor::from_cursor(&c, &info).unwrap()
-        };
-
-        // These should all convert to a Cursor and back to the original value.
-        assert_eq!(identity(&mc1), mc1);
-        assert_eq!(identity(&mc2), mc2);
-        assert_eq!(identity(&mc3), mc3);
-        assert_eq!(identity(&mc4), mc4);
-        assert_eq!(identity(&mc5), mc5);
-
-        // MessageCursor::latest() should point at the most recent message after conversion.
-        assert_eq!(identity(&mc6), mc1);
-    }
-}

src/message/compose.rs

@@ -0,0 +1,376 @@
+//! Code for converting composed messages into content to send to the homeserver.
+use comrak::{markdown_to_html, ComrakOptions};
+use nom::{
+    branch::alt,
+    bytes::complete::tag,
+    character::complete::space0,
+    combinator::value,
+    IResult,
+};
+
+use matrix_sdk::ruma::events::room::message::{
+    EmoteMessageEventContent,
+    MessageType,
+    RoomMessageEventContent,
+    TextMessageEventContent,
+};
+
+#[derive(Clone, Debug, Default)]
+enum SlashCommand {
+    /// Send an emote message.
+    Emote,
+
+    /// Send a message as literal HTML.
+    Html,
+
+    /// Send a message without parsing any markup.
+    Plaintext,
+
+    /// Send a Markdown message (the default message markup).
+    #[default]
+    Markdown,
+
+    /// Send a message with confetti effects in clients that show them.
+    Confetti,
+
+    /// Send a message with fireworks effects in clients that show them.
+    Fireworks,
+
+    /// Send a message with heart effects in clients that show them.
+    Hearts,
+
+    /// Send a message with rainfall effects in clients that show them.
+    Rainfall,
+
+    /// Send a message with snowfall effects in clients that show them.
+    Snowfall,
+
+    /// Send a message with heart effects in clients that show them.
+    SpaceInvaders,
+}
+
+impl SlashCommand {
+    fn to_message(&self, input: &str) -> anyhow::Result<MessageType> {
+        let msgtype = match self {
+            SlashCommand::Emote => {
+                let msg = if let Some(html) = text_to_html(input) {
+                    EmoteMessageEventContent::html(input, html)
+                } else {
+                    EmoteMessageEventContent::plain(input)
+                };
+
+                MessageType::Emote(msg)
+            },
+            SlashCommand::Html => {
+                let msg = TextMessageEventContent::html(input, input);
+                MessageType::Text(msg)
+            },
+            SlashCommand::Plaintext => {
+                let msg = TextMessageEventContent::plain(input);
+                MessageType::Text(msg)
+            },
+            SlashCommand::Markdown => {
+                let msg = text_to_message_content(input.to_string());
+                MessageType::Text(msg)
+            },
+            SlashCommand::Confetti => {
+                MessageType::new("nic.custom.confetti", input.into(), Default::default())?
+            },
+            SlashCommand::Fireworks => {
+                MessageType::new("nic.custom.fireworks", input.into(), Default::default())?
+            },
+            SlashCommand::Hearts => {
+                MessageType::new("io.element.effect.hearts", input.into(), Default::default())?
+            },
+            SlashCommand::Rainfall => {
+                MessageType::new("io.element.effect.rainfall", input.into(), Default::default())?
+            },
+            SlashCommand::Snowfall => {
+                MessageType::new("io.element.effect.snowfall", input.into(), Default::default())?
+            },
+            SlashCommand::SpaceInvaders => {
+                MessageType::new(
+                    "io.element.effects.space_invaders",
+                    input.into(),
+                    Default::default(),
+                )?
+            },
+        };
+
+        Ok(msgtype)
+    }
+}
+
+fn parse_slash_command_inner(input: &str) -> IResult<&str, SlashCommand> {
+    let (input, _) = space0(input)?;
+    let (input, slash) = alt((
+        value(SlashCommand::Emote, tag("/me ")),
+        value(SlashCommand::Html, tag("/h ")),
+        value(SlashCommand::Html, tag("/html ")),
+        value(SlashCommand::Plaintext, tag("/p ")),
+        value(SlashCommand::Plaintext, tag("/plain ")),
+        value(SlashCommand::Plaintext, tag("/plaintext ")),
+        value(SlashCommand::Markdown, tag("/md ")),
+        value(SlashCommand::Markdown, tag("/markdown ")),
+        value(SlashCommand::Confetti, tag("/confetti ")),
+        value(SlashCommand::Fireworks, tag("/fireworks ")),
+        value(SlashCommand::Hearts, tag("/hearts ")),
+        value(SlashCommand::Rainfall, tag("/rainfall ")),
+        value(SlashCommand::Snowfall, tag("/snowfall ")),
+        value(SlashCommand::SpaceInvaders, tag("/spaceinvaders ")),
+    ))(input)?;
+    let (input, _) = space0(input)?;
+
+    Ok((input, slash))
+}
+
+fn parse_slash_command(input: &str) -> anyhow::Result<(&str, SlashCommand)> {
+    match parse_slash_command_inner(input) {
+        Ok(input) => Ok(input),
+        Err(e) => Err(anyhow::anyhow!("Failed to parse slash command: {e}")),
+    }
+}
+
+/// Check whether this character is not used for markup in Markdown.
+///
+/// Markdown uses just about every ASCII punctuation symbol in some way, especially
+/// once autolinking is involved, so we really just check whether it's non-punctuation or
+/// single/double quotations.
+fn not_markdown_char(c: char) -> bool {
+    if !c.is_ascii_punctuation() {
+        return true;
+    }
+
+    matches!(c, '"' | '\'')
+}
+
+/// Check whether the input actually needs to be processed as Markdown.
+fn not_markdown(input: &str) -> bool {
+    input.chars().all(not_markdown_char)
+}
+
+fn text_to_html(input: &str) -> Option<String> {
+    if not_markdown(input) {
+        return None;
+    }
+
+    let mut options = ComrakOptions::default();
+    options.extension.autolink = true;
+    options.extension.shortcodes = true;
+    options.extension.strikethrough = true;
+    options.render.hardbreaks = true;
+    markdown_to_html(input, &options).into()
+}
+
+fn text_to_message_content(input: String) -> TextMessageEventContent {
+    if let Some(html) = text_to_html(input.as_str()) {
+        TextMessageEventContent::html(input, html)
+    } else {
+        TextMessageEventContent::plain(input)
+    }
+}
+
+pub fn text_to_message(input: String) -> RoomMessageEventContent {
+    let msg = parse_slash_command(input.as_str())
+        .and_then(|(input, slash)| slash.to_message(input))
+        .unwrap_or_else(|_| MessageType::Text(text_to_message_content(input)));
+
+    RoomMessageEventContent::new(msg)
+}
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+
+    #[test]
+    fn test_markdown_autolink() {
+        let input = "http://example.com\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(
+            content.formatted.unwrap().body,
+            "<p><a href=\"http://example.com\">http://example.com</a></p>\n"
+        );
+
+        let input = "www.example.com\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(
+            content.formatted.unwrap().body,
+            "<p><a href=\"http://www.example.com\">www.example.com</a></p>\n"
+        );
+
+        let input = "See docs (they're at https://iamb.chat)\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(
+            content.formatted.unwrap().body,
+            "<p>See docs (they're at <a href=\"https://iamb.chat\">https://iamb.chat</a>)</p>\n"
+        );
+    }
+
+    #[test]
+    fn test_markdown_message() {
+        let input = "**bold**\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(content.formatted.unwrap().body, "<p><strong>bold</strong></p>\n");
+
+        let input = "*emphasis*\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(content.formatted.unwrap().body, "<p><em>emphasis</em></p>\n");
+
+        let input = "`code`\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(content.formatted.unwrap().body, "<p><code>code</code></p>\n");
+
+        let input = "```rust\nconst A: usize = 1;\n```\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(
+            content.formatted.unwrap().body,
+            "<pre><code class=\"language-rust\">const A: usize = 1;\n</code></pre>\n"
+        );
+
+        let input = ":heart:\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(content.formatted.unwrap().body, "<p>\u{2764}\u{FE0F}</p>\n");
+
+        let input = "para *1*\n\npara _2_\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(
+            content.formatted.unwrap().body,
+            "<p>para <em>1</em></p>\n<p>para <em>2</em></p>\n"
+        );
+
+        let input = "line 1\nline ~~2~~\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(content.formatted.unwrap().body, "<p>line 1<br />\nline <del>2</del></p>\n");
+
+        let input = "# Heading\n## Subheading\n\ntext\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(
+            content.formatted.unwrap().body,
+            "<h1>Heading</h1>\n<h2>Subheading</h2>\n<p>text</p>\n"
+        );
+    }
+
+    #[test]
+    fn test_markdown_headers() {
+        let input = "hello\n=====\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(content.formatted.unwrap().body, "<h1>hello</h1>\n");
+
+        let input = "hello\n-----\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(content.formatted.unwrap().body, "<h2>hello</h2>\n");
+    }
+
+    #[test]
+    fn test_markdown_lists() {
+        let input = "- A\n- B\n- C\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(
+            content.formatted.unwrap().body,
+            "<ul>\n<li>A</li>\n<li>B</li>\n<li>C</li>\n</ul>\n"
+        );
+
+        let input = "1) A\n2) B\n3) C\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert_eq!(
+            content.formatted.unwrap().body,
+            "<ol>\n<li>A</li>\n<li>B</li>\n<li>C</li>\n</ol>\n"
+        );
+    }
+
+    #[test]
+    fn test_no_markdown_conversion_on_simple_text() {
+        let input = "para 1\n\npara 2\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert!(content.formatted.is_none());
+
+        let input = "line 1\nline 2\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert!(content.formatted.is_none());
+
+        let input = "isn't markdown\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert!(content.formatted.is_none());
+
+        let input = "\"scare quotes\"\n";
+        let content = text_to_message_content(input.into());
+        assert_eq!(content.body, input);
+        assert!(content.formatted.is_none());
+    }
+
+    #[test]
+    fn text_to_message_slash_commands() {
+        let MessageType::Text(content) = text_to_message("/html <b>bold</b>".into()).msgtype else {
+            panic!("Expected MessageType::Text");
+        };
+        assert_eq!(content.body, "<b>bold</b>");
+        assert_eq!(content.formatted.unwrap().body, "<b>bold</b>");
+
+        let MessageType::Text(content) = text_to_message("/h <b>bold</b>".into()).msgtype else {
+            panic!("Expected MessageType::Text");
+        };
+        assert_eq!(content.body, "<b>bold</b>");
+        assert_eq!(content.formatted.unwrap().body, "<b>bold</b>");
+
+        let MessageType::Text(content) = text_to_message("/plain <b>bold</b>".into()).msgtype
+        else {
+            panic!("Expected MessageType::Text");
+        };
+        assert_eq!(content.body, "<b>bold</b>");
+        assert!(content.formatted.is_none(), "{:?}", content.formatted);
+
+        let MessageType::Text(content) = text_to_message("/p <b>bold</b>".into()).msgtype else {
+            panic!("Expected MessageType::Text");
+        };
+        assert_eq!(content.body, "<b>bold</b>");
+        assert!(content.formatted.is_none(), "{:?}", content.formatted);
+
+        let MessageType::Emote(content) = text_to_message("/me *bold*".into()).msgtype else {
+            panic!("Expected MessageType::Emote");
+        };
+        assert_eq!(content.body, "*bold*");
+        assert_eq!(content.formatted.unwrap().body, "<p><em>bold</em></p>\n");
+
+        let content = text_to_message("/confetti hello".into()).msgtype;
+        assert_eq!(content.msgtype(), "nic.custom.confetti");
+        assert_eq!(content.body(), "hello");
+
+        let content = text_to_message("/fireworks hello".into()).msgtype;
+        assert_eq!(content.msgtype(), "nic.custom.fireworks");
+        assert_eq!(content.body(), "hello");
+
+        let content = text_to_message("/hearts hello".into()).msgtype;
+        assert_eq!(content.msgtype(), "io.element.effect.hearts");
+        assert_eq!(content.body(), "hello");
+
+        let content = text_to_message("/rainfall hello".into()).msgtype;
+        assert_eq!(content.msgtype(), "io.element.effect.rainfall");
+        assert_eq!(content.body(), "hello");
+
+        let content = text_to_message("/snowfall hello".into()).msgtype;
+        assert_eq!(content.msgtype(), "io.element.effect.snowfall");
+        assert_eq!(content.body(), "hello");
+
+        let content = text_to_message("/spaceinvaders hello".into()).msgtype;
+        assert_eq!(content.msgtype(), "io.element.effects.space_invaders");
+        assert_eq!(content.body(), "hello");
+    }
+}

src/message/printer.rs

@@ -0,0 +1,318 @@
+//! # Line Wrapping Logic
+//!
+//! The [TextPrinter] handles wrapping stylized text and inserting spaces for padding at the end of
+//! lines to make concatenation work right (e.g., combining table cells after wrapping their
+//! contents).
+use std::borrow::Cow;
+
+use ratatui::layout::Alignment;
+use ratatui::style::Style;
+use ratatui::text::{Line, Span, Text};
+use unicode_segmentation::UnicodeSegmentation;
+use unicode_width::UnicodeWidthStr;
+
+use crate::config::{ApplicationSettings, TunableValues};
+use crate::util::{
+    replace_emojis_in_line,
+    replace_emojis_in_span,
+    replace_emojis_in_str,
+    space_span,
+    take_width,
+};
+
+/// Wrap styled text for the current terminal width.
+pub struct TextPrinter<'a> {
+    text: Text<'a>,
+    width: usize,
+    base_style: Style,
+    hide_reply: bool,
+
+    alignment: Alignment,
+    curr_spans: Vec<Span<'a>>,
+    curr_width: usize,
+    literal: bool,
+
+    pub(super) settings: &'a ApplicationSettings,
+}
+
+impl<'a> TextPrinter<'a> {
+    /// Create a new printer.
+    pub fn new(
+        width: usize,
+        base_style: Style,
+        hide_reply: bool,
+        settings: &'a ApplicationSettings,
+    ) -> Self {
+        TextPrinter {
+            text: Text::default(),
+            width,
+            base_style,
+            hide_reply,
+
+            alignment: Alignment::Left,
+            curr_spans: vec![],
+            curr_width: 0,
+            literal: false,
+            settings,
+        }
+    }
+
+    /// Configure the alignment for each line.
+    pub fn align(mut self, alignment: Alignment) -> Self {
+        self.alignment = alignment;
+        self
+    }
+
+    /// Set whether newlines should be treated literally, or turned into spaces.
+    pub fn literal(mut self, literal: bool) -> Self {
+        self.literal = literal;
+        self
+    }
+
+    /// Indicates whether replies should be pushed to the printer.
+    pub fn hide_reply(&self) -> bool {
+        self.hide_reply
+    }
+
+    /// Indicates whether emojis should be replaced by shortcodes
+    pub fn emoji_shortcodes(&self) -> bool {
+        self.tunables().message_shortcode_display
+    }
+
+    pub fn settings(&self) -> &ApplicationSettings {
+        self.settings
+    }
+
+    pub fn tunables(&self) -> &TunableValues {
+        &self.settings.tunables
+    }
+
+    /// Indicates the current printer's width.
+    pub fn width(&self) -> usize {
+        self.width
+    }
+
+    /// Create a new printer with a smaller width.
+    pub fn sub(&self, indent: usize) -> Self {
+        TextPrinter {
+            text: Text::default(),
+            width: self.width.saturating_sub(indent),
+            base_style: self.base_style,
+            hide_reply: self.hide_reply,
+
+            alignment: self.alignment,
+            curr_spans: vec![],
+            curr_width: 0,
+            literal: self.literal,
+            settings: self.settings,
+        }
+    }
+
+    fn remaining(&self) -> usize {
+        self.width.saturating_sub(self.curr_width)
+    }
+
+    /// If there is any text on the current line, start a new one.
+    pub fn commit(&mut self) {
+        if self.curr_width > 0 {
+            self.push_break();
+        }
+    }
+
+    fn push(&mut self) {
+        self.curr_width = 0;
+        self.text.lines.push(Line::from(std::mem::take(&mut self.curr_spans)));
+    }
+
+    /// Start a new line.
+    pub fn push_break(&mut self) {
+        if self.curr_width == 0 && self.text.lines.is_empty() {
+            // Disallow leading breaks.
+            return;
+        }
+
+        let remaining = self.remaining();
+
+        if remaining > 0 {
+            match self.alignment {
+                Alignment::Left => {
+                    let tspan = space_span(remaining, self.base_style);
+                    self.curr_spans.push(tspan);
+                },
+                Alignment::Center => {
+                    let trailing = remaining / 2;
+                    let leading = remaining - trailing;
+
+                    let tspan = space_span(trailing, self.base_style);
+                    let lspan = space_span(leading, self.base_style);
+
+                    self.curr_spans.push(tspan);
+                    self.curr_spans.insert(0, lspan);
+                },
+                Alignment::Right => {
+                    let lspan = space_span(remaining, self.base_style);
+                    self.curr_spans.insert(0, lspan);
+                },
+            }
+        }
+
+        self.push();
+    }
+
+    fn push_str_wrapped<T>(&mut self, s: T, style: Style)
+    where
+        T: Into<Cow<'a, str>>,
+    {
+        let style = self.base_style.patch(style);
+        let mut cow = s.into();
+
+        loop {
+            let sw = UnicodeWidthStr::width(cow.as_ref());
+
+            if self.curr_width + sw <= self.width {
+                // The text fits within the current line.
+                self.curr_spans.push(Span::styled(cow, style));
+                self.curr_width += sw;
+                break;
+            }
+
+            // Take a leading portion of the text that fits in the line.
+            let ((s0, w), s1) = take_width(cow, self.remaining());
+            cow = s1;
+
+            self.curr_spans.push(Span::styled(s0, style));
+            self.curr_width += w;
+
+            self.commit();
+        }
+
+        if self.curr_width == self.width {
+            // If the last bit fills the full line, start a new one.
+            self.push();
+        }
+    }
+
+    /// Push a [Span] that isn't allowed to break across lines.
+    pub fn push_span_nobreak(&mut self, mut span: Span<'a>) {
+        if self.emoji_shortcodes() {
+            replace_emojis_in_span(&mut span);
+        }
+        let sw = UnicodeWidthStr::width(span.content.as_ref());
+
+        if self.curr_width + sw > self.width {
+            // Span doesn't fit on this line, so start a new one.
+            self.commit();
+        }
+
+        self.curr_spans.push(span);
+        self.curr_width += sw;
+    }
+
+    /// Push text with a [Style].
+    pub fn push_str(&mut self, s: &'a str, style: Style) {
+        let style = self.base_style.patch(style);
+
+        if self.width == 0 {
+            return;
+        }
+
+        let tabstop = self.settings().tunables.tabstop;
+
+        for mut word in UnicodeSegmentation::split_word_bounds(s) {
+            if let "\n" | "\r\n" = word {
+                if self.literal {
+                    self.commit();
+                    continue;
+                }
+
+                // Render embedded newlines as spaces.
+                word = " ";
+            }
+
+            if !self.literal && self.curr_width == 0 && word.chars().all(char::is_whitespace) {
+                // Drop leading whitespace.
+                continue;
+            }
+
+            let mut cow = if self.emoji_shortcodes() {
+                Cow::Owned(replace_emojis_in_str(word))
+            } else {
+                Cow::Borrowed(word)
+            };
+
+            if cow == "\t" {
+                let tablen = tabstop - (self.curr_width % tabstop);
+                cow = Cow::Owned(" ".repeat(tablen));
+            }
+
+            let sw = UnicodeWidthStr::width(cow.as_ref());
+
+            if sw > self.width {
+                self.push_str_wrapped(cow, style);
+                continue;
+            }
+
+            if self.curr_width + sw > self.width {
+                // Word doesn't fit on this line, so start a new one.
+                self.commit();
+
+                if !self.literal && cow.chars().all(char::is_whitespace) {
+                    // Drop leading whitespace.
+                    continue;
+                }
+            }
+
+            let span = Span::styled(cow, style);
+            self.curr_spans.push(span);
+            self.curr_width += sw;
+        }
+
+        if self.curr_width == self.width {
+            // If the last bit fills the full line, start a new one.
+            self.push();
+        }
+    }
+
+    /// Push a [Line] into the printer.
+    pub fn push_line(&mut self, mut line: Line<'a>) {
+        self.commit();
+        if self.emoji_shortcodes() {
+            replace_emojis_in_line(&mut line);
+        }
+        self.text.lines.push(line);
+    }
+
+    /// Push multiline [Text] into the printer.
+    pub fn push_text(&mut self, mut text: Text<'a>) {
+        self.commit();
+        if self.emoji_shortcodes() {
+            for line in &mut text.lines {
+                replace_emojis_in_line(line);
+            }
+        }
+        self.text.lines.extend(text.lines);
+    }
+
+    /// Render the contents of this printer as [Text].
+    pub fn finish(mut self) -> Text<'a> {
+        self.commit();
+        self.text
+    }
+}
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+    use crate::tests::mock_settings;
+
+    #[test]
+    fn test_push_nobreak() {
+        let settings = mock_settings();
+        let mut printer = TextPrinter::new(5, Style::default(), false, &settings);
+        printer.push_span_nobreak("hello world".into());
+        let text = printer.finish();
+        assert_eq!(text.lines.len(), 1);
+        assert_eq!(text.lines[0].spans.len(), 1);
+        assert_eq!(text.lines[0].spans[0].content, "hello world");
+    }
+}

src/message/state.rs

@@ -0,0 +1,956 @@
+//! Code for displaying state events.
+use std::borrow::Cow;
+use std::str::FromStr;
+
+use matrix_sdk::ruma::{
+    events::{
+        room::member::MembershipChange,
+        AnyFullStateEventContent,
+        AnySyncStateEvent,
+        FullStateEventContent,
+    },
+    OwnedRoomId,
+    UserId,
+};
+
+use super::html::{StyleTree, StyleTreeNode};
+use ratatui::style::{Modifier as StyleModifier, Style};
+
+fn bold(s: impl Into<Cow<'static, str>>) -> StyleTreeNode {
+    let bold = Style::default().add_modifier(StyleModifier::BOLD);
+    let text = StyleTreeNode::Text(s.into());
+    StyleTreeNode::Style(Box::new(text), bold)
+}
+
+pub fn body_cow_state(ev: &AnySyncStateEvent) -> Cow<'static, str> {
+    let event = match ev.content() {
+        AnyFullStateEventContent::PolicyRuleRoom(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let mut m = format!(
+                "* updated the room policy rule for {:?} to {:?}",
+                content.0.entity,
+                content.0.recommendation.as_str()
+            );
+
+            if !content.0.reason.is_empty() {
+                m.push_str(" (reason: ");
+                m.push_str(&content.0.reason);
+                m.push(')');
+            }
+
+            m
+        },
+        AnyFullStateEventContent::PolicyRuleServer(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let mut m = format!(
+                "* updated the server policy rule for {:?} to {:?}",
+                content.0.entity,
+                content.0.recommendation.as_str()
+            );
+
+            if !content.0.reason.is_empty() {
+                m.push_str(" (reason: ");
+                m.push_str(&content.0.reason);
+                m.push(')');
+            }
+
+            m
+        },
+        AnyFullStateEventContent::PolicyRuleUser(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let mut m = format!(
+                "* updated the user policy rule for {:?} to {:?}",
+                content.0.entity,
+                content.0.recommendation.as_str()
+            );
+
+            if !content.0.reason.is_empty() {
+                m.push_str(" (reason: ");
+                m.push_str(&content.0.reason);
+                m.push(')');
+            }
+
+            m
+        },
+        AnyFullStateEventContent::RoomAliases(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            let mut m = String::from("* set the room aliases to: ");
+
+            for (i, alias) in content.aliases.iter().enumerate() {
+                if i != 0 {
+                    m.push_str(", ");
+                }
+
+                m.push_str(alias.as_str());
+            }
+
+            m
+        },
+        AnyFullStateEventContent::RoomAvatar(FullStateEventContent::Original {
+            content,
+            prev_content,
+        }) => {
+            let prev_url = prev_content.as_ref().and_then(|p| p.url.as_ref());
+
+            match (prev_url, content.url) {
+                (None, Some(_)) => return Cow::Borrowed("* added a room avatar"),
+                (Some(old), Some(new)) => {
+                    if old != &new {
+                        return Cow::Borrowed("* replaced the room avatar");
+                    }
+
+                    return Cow::Borrowed("* updated the room avatar state");
+                },
+                (Some(_), None) => return Cow::Borrowed("* removed the room avatar"),
+                (None, None) => return Cow::Borrowed("* updated the room avatar state"),
+            }
+        },
+        AnyFullStateEventContent::RoomCanonicalAlias(FullStateEventContent::Original {
+            content,
+            prev_content,
+        }) => {
+            let old_canon = prev_content.as_ref().and_then(|p| p.alias.as_ref());
+            let new_canon = content.alias.as_ref();
+
+            match (old_canon, new_canon) {
+                (None, Some(canon)) => {
+                    format!("* updated the canonical alias for the room to: {canon}")
+                },
+                (Some(old), Some(new)) => {
+                    if old != new {
+                        format!("* updated the canonical alias for the room to: {new}")
+                    } else {
+                        return Cow::Borrowed("* removed the canonical alias for the room");
+                    }
+                },
+                (Some(_), None) => {
+                    return Cow::Borrowed("* removed the canonical alias for the room");
+                },
+                (None, None) => {
+                    return Cow::Borrowed("* did not change the canonical alias");
+                },
+            }
+        },
+        AnyFullStateEventContent::RoomCreate(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            if content.federate {
+                return Cow::Borrowed("* created a federated room");
+            } else {
+                return Cow::Borrowed("* created a non-federated room");
+            }
+        },
+        AnyFullStateEventContent::RoomEncryption(FullStateEventContent::Original { .. }) => {
+            return Cow::Borrowed("* updated the encryption settings for the room");
+        },
+        AnyFullStateEventContent::RoomGuestAccess(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            format!("* set guest access for the room to {:?}", content.guest_access.as_str())
+        },
+        AnyFullStateEventContent::RoomHistoryVisibility(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            format!(
+                "* updated history visibility for the room to {:?}",
+                content.history_visibility.as_str()
+            )
+        },
+        AnyFullStateEventContent::RoomJoinRules(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            format!("* update the join rules for the room to {:?}", content.join_rule.as_str())
+        },
+        AnyFullStateEventContent::RoomMember(FullStateEventContent::Original {
+            content,
+            prev_content,
+        }) => {
+            let Ok(state_key) = UserId::parse(ev.state_key()) else {
+                return Cow::Owned(format!(
+                    "* failed to calculate membership change for {:?}",
+                    ev.state_key()
+                ));
+            };
+
+            let prev_details = prev_content.as_ref().map(|p| p.details());
+            let change = content.membership_change(prev_details, ev.sender(), &state_key);
+
+            match change {
+                MembershipChange::None => {
+                    format!("* did nothing to {state_key}")
+                },
+                MembershipChange::Error => {
+                    format!("* failed to calculate membership change to {state_key}")
+                },
+                MembershipChange::Joined => {
+                    return Cow::Borrowed("* joined the room");
+                },
+                MembershipChange::Left => {
+                    return Cow::Borrowed("* left the room");
+                },
+                MembershipChange::Banned => {
+                    format!("* banned {state_key} from the room")
+                },
+                MembershipChange::Unbanned => {
+                    format!("* unbanned {state_key} from the room")
+                },
+                MembershipChange::Kicked => {
+                    format!("* kicked {state_key} from the room")
+                },
+                MembershipChange::Invited => {
+                    format!("* invited {state_key} to the room")
+                },
+                MembershipChange::KickedAndBanned => {
+                    format!("* kicked and banned {state_key} from the room")
+                },
+                MembershipChange::InvitationAccepted => {
+                    return Cow::Borrowed("* accepted an invitation to join the room");
+                },
+                MembershipChange::InvitationRejected => {
+                    return Cow::Borrowed("* rejected an invitation to join the room");
+                },
+                MembershipChange::InvitationRevoked => {
+                    format!("* revoked an invitation for {state_key} to join the room")
+                },
+                MembershipChange::Knocked => {
+                    return Cow::Borrowed("* would like to join the room");
+                },
+                MembershipChange::KnockAccepted => {
+                    format!("* accepted the room knock from {state_key}")
+                },
+                MembershipChange::KnockRetracted => {
+                    return Cow::Borrowed("* retracted their room knock");
+                },
+                MembershipChange::KnockDenied => {
+                    format!("* rejected the room knock from {state_key}")
+                },
+                MembershipChange::ProfileChanged { displayname_change, avatar_url_change } => {
+                    match (displayname_change, avatar_url_change) {
+                        (Some(change), avatar_change) => {
+                            let mut m = match (change.old, change.new) {
+                                (None, Some(new)) => {
+                                    format!("* set their display name to {new:?}")
+                                },
+                                (Some(old), Some(new)) => {
+                                    format!("* changed their display name from {old} to {new}")
+                                },
+                                (Some(_), None) => "* unset their display name".to_string(),
+                                (None, None) => {
+                                    "* made an unknown change to their display name".to_string()
+                                },
+                            };
+
+                            if avatar_change.is_some() {
+                                m.push_str(" and changed their user avatar");
+                            }
+
+                            m
+                        },
+                        (None, Some(change)) => {
+                            match (change.old, change.new) {
+                                (None, Some(_)) => {
+                                    return Cow::Borrowed("* added a user avatar");
+                                },
+                                (Some(_), Some(_)) => {
+                                    return Cow::Borrowed("* changed their user avatar");
+                                },
+                                (Some(_), None) => {
+                                    return Cow::Borrowed("* removed their user avatar");
+                                },
+                                (None, None) => {
+                                    return Cow::Borrowed(
+                                        "* made an unknown change to their user avatar",
+                                    );
+                                },
+                            }
+                        },
+                        (None, None) => {
+                            return Cow::Borrowed("* changed their user profile");
+                        },
+                    }
+                },
+                ev => {
+                    format!("* made an unknown membership change to {state_key}: {ev:?}")
+                },
+            }
+        },
+        AnyFullStateEventContent::RoomName(FullStateEventContent::Original { content, .. }) => {
+            format!("* updated the room name to {:?}", content.name)
+        },
+        AnyFullStateEventContent::RoomPinnedEvents(FullStateEventContent::Original { .. }) => {
+            return Cow::Borrowed("* updated the pinned events for the room");
+        },
+        AnyFullStateEventContent::RoomPowerLevels(FullStateEventContent::Original { .. }) => {
+            return Cow::Borrowed("* updated the power levels for the room");
+        },
+        AnyFullStateEventContent::RoomServerAcl(FullStateEventContent::Original { .. }) => {
+            return Cow::Borrowed("* updated the room's server ACLs");
+        },
+        AnyFullStateEventContent::RoomThirdPartyInvite(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            format!("* sent a third-party invite to {:?}", content.display_name)
+        },
+        AnyFullStateEventContent::RoomTombstone(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            format!(
+                "* upgraded the room; replacement room is {}",
+                content.replacement_room.as_str()
+            )
+        },
+        AnyFullStateEventContent::RoomTopic(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            format!("* set the room topic to {:?}", content.topic)
+        },
+        AnyFullStateEventContent::SpaceChild(FullStateEventContent::Original { .. }) => {
+            format!("* added a space child: {}", ev.state_key())
+        },
+        AnyFullStateEventContent::SpaceParent(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            if content.canonical {
+                format!("* added a canonical parent space: {}", ev.state_key())
+            } else {
+                format!("* added a parent space: {}", ev.state_key())
+            }
+        },
+        AnyFullStateEventContent::BeaconInfo(FullStateEventContent::Original { .. }) => {
+            return Cow::Borrowed("* shared beacon information");
+        },
+        AnyFullStateEventContent::CallMember(FullStateEventContent::Original { .. }) => {
+            return Cow::Borrowed("* updated membership for room call");
+        },
+        AnyFullStateEventContent::MemberHints(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            let mut m = String::from("* updated the list of service members in the room hints: ");
+
+            for (i, member) in content.service_members.iter().enumerate() {
+                if i != 0 {
+                    m.push_str(", ");
+                }
+
+                m.push_str(member.as_str());
+            }
+
+            m
+        },
+
+        // Redacted variants of state events:
+        AnyFullStateEventContent::PolicyRuleRoom(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated a room policy rule (redacted)");
+        },
+        AnyFullStateEventContent::PolicyRuleServer(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated a server policy rule (redacted)");
+        },
+        AnyFullStateEventContent::PolicyRuleUser(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated a user policy rule (redacted)");
+        },
+        AnyFullStateEventContent::RoomAliases(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the room aliases for the room (redacted)");
+        },
+        AnyFullStateEventContent::RoomAvatar(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the room avatar (redacted)");
+        },
+        AnyFullStateEventContent::RoomCanonicalAlias(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the canonical alias for the room (redacted)");
+        },
+        AnyFullStateEventContent::RoomCreate(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* created the room (redacted)");
+        },
+        AnyFullStateEventContent::RoomEncryption(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the encryption settings for the room (redacted)");
+        },
+        AnyFullStateEventContent::RoomGuestAccess(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed(
+                "* updated the guest access configuration for the room (redacted)",
+            );
+        },
+        AnyFullStateEventContent::RoomHistoryVisibility(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated history visilibity for the room (redacted)");
+        },
+        AnyFullStateEventContent::RoomJoinRules(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the join rules for the room (redacted)");
+        },
+        AnyFullStateEventContent::RoomMember(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the room membership (redacted)");
+        },
+        AnyFullStateEventContent::RoomName(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the room name (redacted)");
+        },
+        AnyFullStateEventContent::RoomPinnedEvents(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the pinned events for the room (redacted)");
+        },
+        AnyFullStateEventContent::RoomPowerLevels(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the power levels for the room (redacted)");
+        },
+        AnyFullStateEventContent::RoomServerAcl(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the room's server ACLs (redacted)");
+        },
+        AnyFullStateEventContent::RoomThirdPartyInvite(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* sent a third-party invite (redacted)");
+        },
+        AnyFullStateEventContent::RoomTombstone(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* upgraded the room (redacted)");
+        },
+        AnyFullStateEventContent::RoomTopic(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* updated the room topic (redacted)");
+        },
+        AnyFullStateEventContent::SpaceChild(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* added a space child (redacted)");
+        },
+        AnyFullStateEventContent::SpaceParent(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* added a parent space (redacted)");
+        },
+        AnyFullStateEventContent::BeaconInfo(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("* shared beacon information (redacted)");
+        },
+        AnyFullStateEventContent::CallMember(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("Call membership changed");
+        },
+        AnyFullStateEventContent::MemberHints(FullStateEventContent::Redacted(_)) => {
+            return Cow::Borrowed("Member hints changed");
+        },
+
+        // Handle unknown events:
+        e => {
+            format!("* sent an unknown state event: {:?}", e.event_type())
+        },
+    };
+
+    return Cow::Owned(event);
+}
+
+pub fn html_state(ev: &AnySyncStateEvent) -> StyleTree {
+    let children = match ev.content() {
+        AnyFullStateEventContent::PolicyRuleRoom(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let prefix = StyleTreeNode::Text("* updated the room policy rule for ".into());
+            let entity = bold(format!("{:?}", content.0.entity));
+            let middle = StyleTreeNode::Text(" to ".into());
+            let rec =
+                StyleTreeNode::Text(format!("{:?}", content.0.recommendation.as_str()).into());
+            let mut cs = vec![prefix, entity, middle, rec];
+
+            if !content.0.reason.is_empty() {
+                let reason = format!(" (reason: {})", content.0.reason);
+                cs.push(StyleTreeNode::Text(reason.into()));
+            }
+
+            cs
+        },
+        AnyFullStateEventContent::PolicyRuleServer(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let prefix = StyleTreeNode::Text("* updated the server policy rule for ".into());
+            let entity = bold(format!("{:?}", content.0.entity));
+            let middle = StyleTreeNode::Text(" to ".into());
+            let rec =
+                StyleTreeNode::Text(format!("{:?}", content.0.recommendation.as_str()).into());
+            let mut cs = vec![prefix, entity, middle, rec];
+
+            if !content.0.reason.is_empty() {
+                let reason = format!(" (reason: {})", content.0.reason);
+                cs.push(StyleTreeNode::Text(reason.into()));
+            }
+
+            cs
+        },
+        AnyFullStateEventContent::PolicyRuleUser(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let prefix = StyleTreeNode::Text("* updated the user policy rule for ".into());
+            let entity = bold(format!("{:?}", content.0.entity));
+            let middle = StyleTreeNode::Text(" to ".into());
+            let rec =
+                StyleTreeNode::Text(format!("{:?}", content.0.recommendation.as_str()).into());
+            let mut cs = vec![prefix, entity, middle, rec];
+
+            if !content.0.reason.is_empty() {
+                let reason = format!(" (reason: {})", content.0.reason);
+                cs.push(StyleTreeNode::Text(reason.into()));
+            }
+
+            cs
+        },
+        AnyFullStateEventContent::RoomAliases(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            let prefix = StyleTreeNode::Text("* set the room aliases to: ".into());
+            let mut cs = vec![prefix];
+
+            for (i, alias) in content.aliases.iter().enumerate() {
+                if i != 0 {
+                    cs.push(StyleTreeNode::Text(", ".into()));
+                }
+
+                cs.push(StyleTreeNode::RoomAlias(alias.clone()));
+            }
+
+            cs
+        },
+        AnyFullStateEventContent::RoomAvatar(FullStateEventContent::Original {
+            content,
+            prev_content,
+        }) => {
+            let prev_url = prev_content.as_ref().and_then(|p| p.url.as_ref());
+
+            let node = match (prev_url, content.url) {
+                (None, Some(_)) => StyleTreeNode::Text("* added a room avatar".into()),
+                (Some(old), Some(new)) => {
+                    if old != &new {
+                        StyleTreeNode::Text("* replaced the room avatar".into())
+                    } else {
+                        StyleTreeNode::Text("* updated the room avatar state".into())
+                    }
+                },
+                (Some(_), None) => StyleTreeNode::Text("* removed the room avatar".into()),
+                (None, None) => StyleTreeNode::Text("* updated the room avatar state".into()),
+            };
+
+            vec![node]
+        },
+        AnyFullStateEventContent::RoomCanonicalAlias(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            if let Some(canon) = content.alias.as_ref() {
+                let canon = bold(canon.to_string());
+                let prefix =
+                    StyleTreeNode::Text("* updated the canonical alias for the room to: ".into());
+                vec![prefix, canon]
+            } else {
+                vec![StyleTreeNode::Text(
+                    "* removed the canonical alias for the room".into(),
+                )]
+            }
+        },
+        AnyFullStateEventContent::RoomCreate(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            if content.federate {
+                vec![StyleTreeNode::Text("* created a federated room".into())]
+            } else {
+                vec![StyleTreeNode::Text("* created a non-federated room".into())]
+            }
+        },
+        AnyFullStateEventContent::RoomEncryption(FullStateEventContent::Original { .. }) => {
+            vec![StyleTreeNode::Text(
+                "* updated the encryption settings for the room".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomGuestAccess(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let access = bold(format!("{:?}", content.guest_access.as_str()));
+            let prefix = StyleTreeNode::Text("* set guest access for the room to ".into());
+            vec![prefix, access]
+        },
+        AnyFullStateEventContent::RoomHistoryVisibility(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let prefix =
+                StyleTreeNode::Text("* updated history visibility for the room to ".into());
+            let vis = bold(format!("{:?}", content.history_visibility.as_str()));
+            vec![prefix, vis]
+        },
+        AnyFullStateEventContent::RoomJoinRules(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let prefix = StyleTreeNode::Text("* update the join rules for the room to ".into());
+            let rule = bold(format!("{:?}", content.join_rule.as_str()));
+            vec![prefix, rule]
+        },
+        AnyFullStateEventContent::RoomMember(FullStateEventContent::Original {
+            content,
+            prev_content,
+        }) => {
+            let Ok(state_key) = UserId::parse(ev.state_key()) else {
+                let prefix =
+                    StyleTreeNode::Text("* failed to calculate membership change for ".into());
+                let user_id = bold(format!("{:?}", ev.state_key()));
+                let children = vec![prefix, user_id];
+
+                return StyleTree { children };
+            };
+
+            let prev_details = prev_content.as_ref().map(|p| p.details());
+            let change = content.membership_change(prev_details, ev.sender(), &state_key);
+            let user_id = StyleTreeNode::UserId(state_key.clone());
+
+            match change {
+                MembershipChange::None => {
+                    let prefix = StyleTreeNode::Text("* did nothing to ".into());
+                    vec![prefix, user_id]
+                },
+                MembershipChange::Error => {
+                    let prefix =
+                        StyleTreeNode::Text("* failed to calculate membership change to ".into());
+                    vec![prefix, user_id]
+                },
+                MembershipChange::Joined => {
+                    vec![StyleTreeNode::Text("* joined the room".into())]
+                },
+                MembershipChange::Left => {
+                    vec![StyleTreeNode::Text("* left the room".into())]
+                },
+                MembershipChange::Banned => {
+                    let prefix = StyleTreeNode::Text("* banned ".into());
+                    let suffix = StyleTreeNode::Text(" from the room".into());
+                    vec![prefix, user_id, suffix]
+                },
+                MembershipChange::Unbanned => {
+                    let prefix = StyleTreeNode::Text("* unbanned ".into());
+                    let suffix = StyleTreeNode::Text(" from the room".into());
+                    vec![prefix, user_id, suffix]
+                },
+                MembershipChange::Kicked => {
+                    let prefix = StyleTreeNode::Text("* kicked ".into());
+                    let suffix = StyleTreeNode::Text(" from the room".into());
+                    vec![prefix, user_id, suffix]
+                },
+                MembershipChange::Invited => {
+                    let prefix = StyleTreeNode::Text("* invited ".into());
+                    let suffix = StyleTreeNode::Text(" to the room".into());
+                    vec![prefix, user_id, suffix]
+                },
+                MembershipChange::KickedAndBanned => {
+                    let prefix = StyleTreeNode::Text("* kicked and banned ".into());
+                    let suffix = StyleTreeNode::Text(" from the room".into());
+                    vec![prefix, user_id, suffix]
+                },
+                MembershipChange::InvitationAccepted => {
+                    vec![StyleTreeNode::Text(
+                        "* accepted an invitation to join the room".into(),
+                    )]
+                },
+                MembershipChange::InvitationRejected => {
+                    vec![StyleTreeNode::Text(
+                        "* rejected an invitation to join the room".into(),
+                    )]
+                },
+                MembershipChange::InvitationRevoked => {
+                    let prefix = StyleTreeNode::Text("* revoked an invitation for ".into());
+                    let suffix = StyleTreeNode::Text(" to join the room".into());
+                    vec![prefix, user_id, suffix]
+                },
+                MembershipChange::Knocked => {
+                    vec![StyleTreeNode::Text("* would like to join the room".into())]
+                },
+                MembershipChange::KnockAccepted => {
+                    let prefix = StyleTreeNode::Text("* accepted the room knock from ".into());
+                    vec![prefix, user_id]
+                },
+                MembershipChange::KnockRetracted => {
+                    vec![StyleTreeNode::Text("* retracted their room knock".into())]
+                },
+                MembershipChange::KnockDenied => {
+                    let prefix = StyleTreeNode::Text("* rejected the room knock from ".into());
+                    vec![prefix, user_id]
+                },
+                MembershipChange::ProfileChanged { displayname_change, avatar_url_change } => {
+                    match (displayname_change, avatar_url_change) {
+                        (Some(change), avatar_change) => {
+                            let mut m = match (change.old, change.new) {
+                                (None, Some(new)) => {
+                                    vec![
+                                        StyleTreeNode::Text("* set their display name to ".into()),
+                                        StyleTreeNode::DisplayName(new.into(), state_key),
+                                    ]
+                                },
+                                (Some(old), Some(new)) => {
+                                    vec![
+                                        StyleTreeNode::Text(
+                                            "* changed their display name from ".into(),
+                                        ),
+                                        StyleTreeNode::DisplayName(old.into(), state_key.clone()),
+                                        StyleTreeNode::Text(" to ".into()),
+                                        StyleTreeNode::DisplayName(new.into(), state_key),
+                                    ]
+                                },
+                                (Some(_), None) => {
+                                    vec![StyleTreeNode::Text("* unset their display name".into())]
+                                },
+                                (None, None) => {
+                                    vec![StyleTreeNode::Text(
+                                        "* made an unknown change to their display name".into(),
+                                    )]
+                                },
+                            };
+
+                            if avatar_change.is_some() {
+                                m.push(StyleTreeNode::Text(
+                                    " and changed their user avatar".into(),
+                                ));
+                            }
+
+                            m
+                        },
+                        (None, Some(change)) => {
+                            let m = match (change.old, change.new) {
+                                (None, Some(_)) => Cow::Borrowed("* added a user avatar"),
+                                (Some(_), Some(_)) => Cow::Borrowed("* changed their user avatar"),
+                                (Some(_), None) => Cow::Borrowed("* removed their user avatar"),
+                                (None, None) => {
+                                    Cow::Borrowed("* made an unknown change to their user avatar")
+                                },
+                            };
+
+                            vec![StyleTreeNode::Text(m)]
+                        },
+                        (None, None) => {
+                            vec![StyleTreeNode::Text("* changed their user profile".into())]
+                        },
+                    }
+                },
+                ev => {
+                    let prefix =
+                        StyleTreeNode::Text("* made an unknown membership change to ".into());
+                    let suffix = StyleTreeNode::Text(format!(": {ev:?}").into());
+                    vec![prefix, user_id, suffix]
+                },
+            }
+        },
+        AnyFullStateEventContent::RoomName(FullStateEventContent::Original { content, .. }) => {
+            let prefix = StyleTreeNode::Text("* updated the room name to ".into());
+            let name = bold(format!("{:?}", content.name));
+            vec![prefix, name]
+        },
+        AnyFullStateEventContent::RoomPinnedEvents(FullStateEventContent::Original { .. }) => {
+            vec![StyleTreeNode::Text(
+                "* updated the pinned events for the room".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomPowerLevels(FullStateEventContent::Original { .. }) => {
+            vec![StyleTreeNode::Text(
+                "* updated the power levels for the room".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomServerAcl(FullStateEventContent::Original { .. }) => {
+            vec![StyleTreeNode::Text(
+                "* updated the room's server ACLs".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomThirdPartyInvite(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let prefix = StyleTreeNode::Text("* sent a third-party invite to ".into());
+            let name = bold(format!("{:?}", content.display_name));
+            vec![prefix, name]
+        },
+        AnyFullStateEventContent::RoomTombstone(FullStateEventContent::Original {
+            content,
+            ..
+        }) => {
+            let prefix = StyleTreeNode::Text("* upgraded the room; replacement room is ".into());
+            let room = StyleTreeNode::RoomId(content.replacement_room.clone());
+            vec![prefix, room]
+        },
+        AnyFullStateEventContent::RoomTopic(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            let prefix = StyleTreeNode::Text("* set the room topic to ".into());
+            let topic = bold(format!("{:?}", content.topic));
+            vec![prefix, topic]
+        },
+        AnyFullStateEventContent::SpaceChild(FullStateEventContent::Original { .. }) => {
+            let prefix = StyleTreeNode::Text("* added a space child: ".into());
+
+            let room_id = if let Ok(room_id) = OwnedRoomId::from_str(ev.state_key()) {
+                StyleTreeNode::RoomId(room_id)
+            } else {
+                bold(ev.state_key().to_string())
+            };
+
+            vec![prefix, room_id]
+        },
+        AnyFullStateEventContent::SpaceParent(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            let prefix = if content.canonical {
+                StyleTreeNode::Text("* added a canonical parent space: ".into())
+            } else {
+                StyleTreeNode::Text("* added a parent space: ".into())
+            };
+
+            let room_id = if let Ok(room_id) = OwnedRoomId::from_str(ev.state_key()) {
+                StyleTreeNode::RoomId(room_id)
+            } else {
+                bold(ev.state_key().to_string())
+            };
+
+            vec![prefix, room_id]
+        },
+        AnyFullStateEventContent::BeaconInfo(FullStateEventContent::Original { .. }) => {
+            vec![StyleTreeNode::Text("* shared beacon information".into())]
+        },
+        AnyFullStateEventContent::CallMember(FullStateEventContent::Original { .. }) => {
+            vec![StyleTreeNode::Text(
+                "* updated membership for room call".into(),
+            )]
+        },
+        AnyFullStateEventContent::MemberHints(FullStateEventContent::Original {
+            content, ..
+        }) => {
+            let prefix = StyleTreeNode::Text(
+                "* updated the list of service members in the room hints: ".into(),
+            );
+            let mut cs = vec![prefix];
+
+            for (i, member) in content.service_members.iter().enumerate() {
+                if i != 0 {
+                    cs.push(StyleTreeNode::Text(", ".into()));
+                }
+
+                cs.push(StyleTreeNode::UserId(member.clone()));
+            }
+
+            cs
+        },
+
+        // Redacted variants of state events:
+        AnyFullStateEventContent::PolicyRuleRoom(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated a room policy rule (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::PolicyRuleServer(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated a server policy rule (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::PolicyRuleUser(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated a user policy rule (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomAliases(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the room aliases for the room (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomAvatar(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the room avatar (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomCanonicalAlias(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the canonical alias for the room (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomCreate(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text("* created the room (redacted)".into())]
+        },
+        AnyFullStateEventContent::RoomEncryption(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the encryption settings for the room (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomGuestAccess(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the guest access configuration for the room (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomHistoryVisibility(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated history visilibity for the room (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomJoinRules(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the join rules for the room (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomMember(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the room membership (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomName(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the room name (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomPinnedEvents(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the pinned events for the room (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomPowerLevels(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the power levels for the room (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomServerAcl(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the room's server ACLs (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomThirdPartyInvite(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* sent a third-party invite (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::RoomTombstone(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text("* upgraded the room (redacted)".into())]
+        },
+        AnyFullStateEventContent::RoomTopic(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* updated the room topic (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::SpaceChild(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* added a space child (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::SpaceParent(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* added a parent space (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::BeaconInfo(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text(
+                "* shared beacon information (redacted)".into(),
+            )]
+        },
+        AnyFullStateEventContent::CallMember(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text("Call membership changed".into())]
+        },
+        AnyFullStateEventContent::MemberHints(FullStateEventContent::Redacted(_)) => {
+            vec![StyleTreeNode::Text("Member hints changed".into())]
+        },
+
+        // Handle unknown events:
+        e => {
+            let prefix = StyleTreeNode::Text("* sent an unknown state event: ".into());
+            let event = bold(format!("{:?}", e.event_type()));
+            vec![prefix, event]
+        },
+    };
+
+    StyleTree { children }
+}

src/notifications.rs

@@ -0,0 +1,324 @@
+use std::time::SystemTime;
+
+use matrix_sdk::{
+    deserialized_responses::RawAnySyncOrStrippedTimelineEvent,
+    notification_settings::{IsEncrypted, IsOneToOne, NotificationSettings, RoomNotificationMode},
+    room::Room as MatrixRoom,
+    ruma::{
+        events::{room::message::MessageType, AnyMessageLikeEventContent, AnySyncTimelineEvent},
+        serde::Raw,
+        MilliSecondsSinceUnixEpoch,
+        OwnedRoomId,
+        RoomId,
+    },
+    Client,
+    EncryptionState,
+};
+use unicode_segmentation::UnicodeSegmentation;
+
+use crate::{
+    base::{AsyncProgramStore, IambError, IambResult, ProgramStore},
+    config::{ApplicationSettings, NotifyVia},
+};
+
+const IAMB_XDG_NAME: &str = match option_env!("IAMB_XDG_NAME") {
+    None => "iamb",
+    Some(iamb) => iamb,
+};
+
+/// Handle for an open notification that should be closed when the user views it.
+pub struct NotificationHandle(
+    #[cfg(all(feature = "desktop", unix, not(target_os = "macos")))]
+    Option<notify_rust::NotificationHandle>,
+);
+
+impl Drop for NotificationHandle {
+    fn drop(&mut self) {
+        #[cfg(all(feature = "desktop", unix, not(target_os = "macos")))]
+        if let Some(handle) = self.0.take() {
+            handle.close();
+        }
+    }
+}
+
+pub async fn register_notifications(
+    client: &Client,
+    settings: &ApplicationSettings,
+    store: &AsyncProgramStore,
+) {
+    if !settings.tunables.notifications.enabled {
+        return;
+    }
+    let notify_via = settings.tunables.notifications.via;
+    let show_message = settings.tunables.notifications.show_message;
+    let sound_hint = settings.tunables.notifications.sound_hint.clone();
+    let server_settings = client.notification_settings().await;
+    let Some(startup_ts) = MilliSecondsSinceUnixEpoch::from_system_time(SystemTime::now()) else {
+        return;
+    };
+
+    let store = store.clone();
+    client
+        .register_notification_handler(move |notification, room: MatrixRoom, client: Client| {
+            let store = store.clone();
+            let server_settings = server_settings.clone();
+            let sound_hint = sound_hint.clone();
+            async move {
+                let mode = global_or_room_mode(&server_settings, &room).await;
+                if mode == RoomNotificationMode::Mute {
+                    return;
+                }
+
+                if is_visible_room(&store, room.room_id()).await {
+                    return;
+                }
+
+                let room_id = room.room_id().to_owned();
+                match notification.event {
+                    RawAnySyncOrStrippedTimelineEvent::Sync(e) => {
+                        match parse_full_notification(e, room, show_message).await {
+                            Ok((summary, body, server_ts)) => {
+                                if server_ts < startup_ts {
+                                    return;
+                                }
+
+                                if is_missing_mention(&body, mode, &client) {
+                                    return;
+                                }
+
+                                send_notification(
+                                    &notify_via,
+                                    &summary,
+                                    body.as_deref(),
+                                    room_id,
+                                    &store,
+                                    sound_hint.as_deref(),
+                                )
+                                .await;
+                            },
+                            Err(err) => {
+                                tracing::error!("Failed to extract notification data: {err}")
+                            },
+                        }
+                    },
+                    // Stripped events may be dropped silently because they're
+                    // only relevant if we're not in a room, and we presumably
+                    // don't want notifications for rooms we're not in.
+                    RawAnySyncOrStrippedTimelineEvent::Stripped(_) => (),
+                }
+            }
+        })
+        .await;
+}
+
+async fn send_notification(
+    via: &NotifyVia,
+    summary: &str,
+    body: Option<&str>,
+    room_id: OwnedRoomId,
+    store: &AsyncProgramStore,
+    sound_hint: Option<&str>,
+) {
+    #[cfg(feature = "desktop")]
+    if via.desktop {
+        send_notification_desktop(summary, body, room_id, store, sound_hint).await;
+    }
+    #[cfg(not(feature = "desktop"))]
+    {
+        let _ = (summary, body, IAMB_XDG_NAME);
+    }
+
+    if via.bell {
+        send_notification_bell(store).await;
+    }
+}
+
+async fn send_notification_bell(store: &AsyncProgramStore) {
+    let mut locked = store.lock().await;
+    locked.application.ring_bell = true;
+}
+
+#[cfg(feature = "desktop")]
+#[cfg_attr(target_os = "macos", allow(unused_variables))]
+async fn send_notification_desktop(
+    summary: &str,
+    body: Option<&str>,
+    room_id: OwnedRoomId,
+    _store: &AsyncProgramStore,
+    sound_hint: Option<&str>,
+) {
+    let mut desktop_notification = notify_rust::Notification::new();
+    desktop_notification
+        .summary(summary)
+        .appname(IAMB_XDG_NAME)
+        .icon(IAMB_XDG_NAME)
+        .action("default", "default");
+
+    if let Some(sound_hint) = sound_hint {
+        desktop_notification.sound_name(sound_hint);
+    }
+
+    #[cfg(all(unix, not(target_os = "macos")))]
+    desktop_notification.urgency(notify_rust::Urgency::Normal);
+
+    if let Some(body) = body {
+        desktop_notification.body(body);
+    }
+
+    match desktop_notification.show() {
+        Err(err) => tracing::error!("Failed to send notification: {err}"),
+        Ok(handle) => {
+            #[cfg(all(unix, not(target_os = "macos")))]
+            _store
+                .lock()
+                .await
+                .application
+                .open_notifications
+                .entry(room_id)
+                .or_default()
+                .push(NotificationHandle(Some(handle)));
+        },
+    }
+}
+
+async fn global_or_room_mode(
+    settings: &NotificationSettings,
+    room: &MatrixRoom,
+) -> RoomNotificationMode {
+    let room_mode = settings.get_user_defined_room_notification_mode(room.room_id()).await;
+    if let Some(mode) = room_mode {
+        return mode;
+    }
+    let is_one_to_one = match room.is_direct().await {
+        Ok(true) => IsOneToOne::Yes,
+        _ => IsOneToOne::No,
+    };
+    let is_encrypted = match room.latest_encryption_state().await {
+        Ok(EncryptionState::Encrypted) => IsEncrypted::Yes,
+        _ => IsEncrypted::No,
+    };
+    settings
+        .get_default_room_notification_mode(is_encrypted, is_one_to_one)
+        .await
+}
+
+fn is_missing_mention(body: &Option<String>, mode: RoomNotificationMode, client: &Client) -> bool {
+    if let Some(body) = body {
+        if mode == RoomNotificationMode::MentionsAndKeywordsOnly {
+            let mentioned = match client.user_id() {
+                Some(user_id) => body.contains(user_id.localpart()),
+                _ => false,
+            };
+            return !mentioned;
+        }
+    }
+    false
+}
+
+fn is_open(locked: &mut ProgramStore, room_id: &RoomId) -> bool {
+    if let Some(draw_curr) = locked.application.draw_curr {
+        let info = locked.application.get_room_info(room_id.to_owned());
+        if let Some(draw_last) = info.draw_last {
+            return draw_last == draw_curr;
+        }
+    }
+    false
+}
+
+fn is_focused(locked: &ProgramStore) -> bool {
+    locked.application.focused
+}
+
+async fn is_visible_room(store: &AsyncProgramStore, room_id: &RoomId) -> bool {
+    let mut locked = store.lock().await;
+
+    is_focused(&locked) && is_open(&mut locked, room_id)
+}
+
+pub async fn parse_full_notification(
+    event: Raw<AnySyncTimelineEvent>,
+    room: MatrixRoom,
+    show_body: bool,
+) -> IambResult<(String, Option<String>, MilliSecondsSinceUnixEpoch)> {
+    let event = event.deserialize().map_err(IambError::from)?;
+
+    let server_ts = event.origin_server_ts();
+
+    let sender_id = event.sender();
+    let sender = room.get_member_no_sync(sender_id).await.map_err(IambError::from)?;
+
+    let sender_name = sender
+        .as_ref()
+        .and_then(|m| m.display_name())
+        .unwrap_or_else(|| sender_id.localpart());
+
+    let summary = if let Some(room_name) = room.cached_display_name() {
+        if room.is_direct().await.map_err(IambError::from)? && sender_name == room_name.to_string()
+        {
+            sender_name.to_string()
+        } else {
+            format!("{sender_name} in {room_name}")
+        }
+    } else {
+        sender_name.to_string()
+    };
+
+    let body = if show_body {
+        event_notification_body(&event, sender_name).map(truncate)
+    } else {
+        None
+    };
+
+    return Ok((summary, body, server_ts));
+}
+
+pub fn event_notification_body(event: &AnySyncTimelineEvent, sender_name: &str) -> Option<String> {
+    let AnySyncTimelineEvent::MessageLike(event) = event else {
+        return None;
+    };
+
+    match event.original_content()? {
+        AnyMessageLikeEventContent::RoomMessage(message) => {
+            let body = match message.msgtype {
+                MessageType::Audio(_) => {
+                    format!("{sender_name} sent an audio file.")
+                },
+                MessageType::Emote(content) => content.body,
+                MessageType::File(_) => {
+                    format!("{sender_name} sent a file.")
+                },
+                MessageType::Image(_) => {
+                    format!("{sender_name} sent an image.")
+                },
+                MessageType::Location(_) => {
+                    format!("{sender_name} sent their location.")
+                },
+                MessageType::Notice(content) => content.body,
+                MessageType::ServerNotice(content) => content.body,
+                MessageType::Text(content) => content.body,
+                MessageType::Video(_) => {
+                    format!("{sender_name} sent a video.")
+                },
+                MessageType::VerificationRequest(_) => {
+                    format!("{sender_name} sent a verification request.")
+                },
+                _ => {
+                    format!("[Unknown message type: {:?}]", &message.msgtype)
+                },
+            };
+            Some(body)
+        },
+        AnyMessageLikeEventContent::Sticker(_) => Some(format!("{sender_name} sent a sticker.")),
+        _ => None,
+    }
+}
+
+fn truncate(s: String) -> String {
+    static MAX_LENGTH: usize = 5000;
+    if s.graphemes(true).count() > MAX_LENGTH {
+        let truncated: String = s.graphemes(true).take(MAX_LENGTH).collect();
+        truncated + "..."
+    } else {
+        s
+    }
+}

src/preview.rs

@@ -0,0 +1,175 @@
+use std::{
+    fs::File,
+    io::{Read, Write},
+    path::{Path, PathBuf},
+};
+
+use matrix_sdk::{
+    media::{MediaFormat, MediaRequestParameters},
+    ruma::{
+        events::{
+            room::{
+                message::{MessageType, RoomMessageEventContent},
+                MediaSource,
+            },
+            MessageLikeEvent,
+        },
+        OwnedEventId,
+        OwnedRoomId,
+    },
+    Media,
+};
+use ratatui::layout::Rect;
+use ratatui_image::Resize;
+
+use crate::{
+    base::{AsyncProgramStore, ChatStore, IambError},
+    config::ImagePreviewSize,
+    message::ImageStatus,
+};
+
+pub fn source_from_event(
+    ev: &MessageLikeEvent<RoomMessageEventContent>,
+) -> Option<(OwnedEventId, MediaSource)> {
+    if let MessageLikeEvent::Original(ev) = &ev {
+        if let MessageType::Image(c) = &ev.content.msgtype {
+            return Some((ev.event_id.clone(), c.source.clone()));
+        }
+    }
+    None
+}
+
+impl From<ImagePreviewSize> for Rect {
+    fn from(value: ImagePreviewSize) -> Self {
+        Rect::new(0, 0, value.width as _, value.height as _)
+    }
+}
+impl From<Rect> for ImagePreviewSize {
+    fn from(rect: Rect) -> Self {
+        ImagePreviewSize { width: rect.width as _, height: rect.height as _ }
+    }
+}
+
+/// Download and prepare the preview, and then lock the store to insert it.
+pub fn spawn_insert_preview(
+    store: AsyncProgramStore,
+    room_id: OwnedRoomId,
+    event_id: OwnedEventId,
+    source: MediaSource,
+    media: Media,
+    cache_dir: PathBuf,
+) {
+    tokio::spawn(async move {
+        let img = download_or_load(event_id.to_owned(), source, media, cache_dir)
+            .await
+            .map(std::io::Cursor::new)
+            .map(image::ImageReader::new)
+            .map_err(IambError::Matrix)
+            .and_then(|reader| reader.with_guessed_format().map_err(IambError::IOError))
+            .and_then(|reader| reader.decode().map_err(IambError::Image));
+
+        match img {
+            Err(err) => {
+                try_set_msg_preview_error(
+                    &mut store.lock().await.application,
+                    room_id,
+                    event_id,
+                    err,
+                );
+            },
+            Ok(img) => {
+                let mut locked = store.lock().await;
+                let ChatStore { rooms, picker, settings, .. } = &mut locked.application;
+
+                match picker
+                    .as_mut()
+                    .ok_or_else(|| IambError::Preview("Picker is empty".to_string()))
+                    .and_then(|picker| {
+                        Ok((
+                            picker,
+                            rooms
+                                .get_or_default(room_id.clone())
+                                .get_event_mut(&event_id)
+                                .ok_or_else(|| {
+                                    IambError::Preview("Message not found".to_string())
+                                })?,
+                            settings.tunables.image_preview.clone().ok_or_else(|| {
+                                IambError::Preview("image_preview settings not found".to_string())
+                            })?,
+                        ))
+                    })
+                    .and_then(|(picker, msg, image_preview)| {
+                        picker
+                            .new_protocol(img, image_preview.size.into(), Resize::Fit(None))
+                            .map_err(|err| IambError::Preview(format!("{err:?}")))
+                            .map(|backend| (backend, msg))
+                    }) {
+                    Err(err) => {
+                        try_set_msg_preview_error(&mut locked.application, room_id, event_id, err);
+                    },
+                    Ok((backend, msg)) => {
+                        msg.image_preview = ImageStatus::Loaded(backend);
+                    },
+                }
+            },
+        }
+    });
+}
+
+fn try_set_msg_preview_error(
+    application: &mut ChatStore,
+    room_id: OwnedRoomId,
+    event_id: OwnedEventId,
+    err: IambError,
+) {
+    let rooms = &mut application.rooms;
+
+    match rooms
+        .get_or_default(room_id.clone())
+        .get_event_mut(&event_id)
+        .ok_or_else(|| IambError::Preview("Message not found".to_string()))
+    {
+        Ok(msg) => msg.image_preview = ImageStatus::Error(format!("{err:?}")),
+        Err(err) => {
+            tracing::error!(
+                "Failed to set error on msg.image_backend for event {}, room {}: {}",
+                event_id,
+                room_id,
+                err
+            )
+        },
+    }
+}
+
+async fn download_or_load(
+    event_id: OwnedEventId,
+    source: MediaSource,
+    media: Media,
+    mut cache_path: PathBuf,
+) -> Result<Vec<u8>, matrix_sdk::Error> {
+    cache_path.push(Path::new(event_id.localpart()));
+
+    match File::open(&cache_path) {
+        Ok(mut f) => {
+            let mut buffer = Vec::new();
+            f.read_to_end(&mut buffer)?;
+            Ok(buffer)
+        },
+        Err(_) => {
+            media
+                .get_media_content(
+                    &MediaRequestParameters { source, format: MediaFormat::File },
+                    true,
+                )
+                .await
+                .and_then(|buffer| {
+                    if let Err(err) =
+                        File::create(&cache_path).and_then(|mut f| f.write_all(&buffer))
+                    {
+                        return Err(err.into());
+                    }
+                    Ok(buffer)
+                })
+        },
+    }
+}

src/sled_export.rs

@@ -0,0 +1,58 @@
+//! # sled -> sqlite migration code
+//!
+//! Before the 0.0.9 release, iamb used matrix-sdk@0.6.2, which used [sled]
+//! for storing information, including room keys. In matrix-sdk@0.7.0,
+//! the SDK switched to using SQLite. This module takes care of opening
+//! sled, exporting the inbound group sessions used for decryption,
+//! and importing them into SQLite.
+//!
+//! This code will eventually be removed once people have been given enough
+//! time to upgrade off of pre-0.0.9 versions.
+//!
+//! [sled]: https://docs.rs/sled/0.34.7/sled/index.html
+use sled::{Config, IVec};
+use std::path::Path;
+
+use crate::base::IambError;
+use matrix_sdk::crypto::olm::{ExportedRoomKey, InboundGroupSession, PickledInboundGroupSession};
+
+#[derive(Debug, thiserror::Error)]
+pub enum SledMigrationError {
+    #[error("sled failure: {0}")]
+    Sled(#[from] sled::Error),
+
+    #[error("deserialization failure: {0}")]
+    Deserialize(#[from] serde_json::Error),
+}
+
+fn group_session_from_slice(
+    (_, bytes): (IVec, IVec),
+) -> Result<PickledInboundGroupSession, SledMigrationError> {
+    serde_json::from_slice(&bytes).map_err(SledMigrationError::from)
+}
+
+async fn export_room_keys_priv(
+    sled_dir: &Path,
+) -> Result<Vec<ExportedRoomKey>, SledMigrationError> {
+    let path = sled_dir.join("matrix-sdk-state");
+    let store = Config::new().temporary(false).path(&path).open()?;
+    let inbound_groups = store.open_tree("inbound_group_sessions")?;
+
+    let mut exported = vec![];
+    let sessions = inbound_groups
+        .iter()
+        .map(|p| p.map_err(SledMigrationError::from).and_then(group_session_from_slice))
+        .collect::<Result<Vec<_>, _>>()?
+        .into_iter()
+        .filter_map(|p| InboundGroupSession::from_pickle(p).ok());
+
+    for session in sessions {
+        exported.push(session.export().await);
+    }
+
+    Ok(exported)
+}
+
+pub async fn export_room_keys(sled_dir: &Path) -> Result<Vec<ExportedRoomKey>, IambError> {
+    export_room_keys_priv(sled_dir).await.map_err(IambError::from)
+}

src/tests.rs

@@ -1,29 +1,44 @@
-use std::collections::BTreeMap;
+use std::collections::HashMap;
+use std::path::PathBuf;
 
 use matrix_sdk::ruma::{
     event_id,
-    events::room::message::RoomMessageEventContent,
+    events::room::message::{OriginalRoomMessageEvent, RoomMessageEventContent},
     server_name,
     user_id,
     EventId,
+    OwnedEventId,
     OwnedRoomId,
     OwnedUserId,
     RoomId,
     UInt,
 };
 
-use std::path::PathBuf;
-use std::sync::mpsc::sync_channel;
+use lazy_static::lazy_static;
+use ratatui::style::{Color, Style};
+use tokio::sync::mpsc::unbounded_channel;
+use tracing::Level;
 use url::Url;
 
-use lazy_static::lazy_static;
-
 use crate::{
-    base::{ChatStore, ProgramStore, RoomFetchStatus, RoomInfo},
-    config::{ApplicationSettings, DirectoryValues, ProfileConfig, TunableValues},
+    base::{ChatStore, EventLocation, ProgramStore, RoomInfo},
+    config::{
+        user_color,
+        user_style_from_color,
+        ApplicationSettings,
+        DirectoryValues,
+        Notifications,
+        NotifyVia,
+        ProfileConfig,
+        SortOverrides,
+        TunableValues,
+        UserColor,
+        UserDisplayStyle,
+        UserDisplayTunables,
+    },
     message::{
         Message,
-        MessageContent,
+        MessageEvent,
         MessageKey,
         MessageTimeStamp::{LocalEcho, OriginServer},
         Messages,
@@ -31,65 +46,99 @@ use crate::{
     worker::Requester,
 };
 
+const TEST_ROOM1_ALIAS: &str = "#room1:example.com";
+
 lazy_static! {
-    pub static ref TEST_ROOM1_ID: OwnedRoomId = RoomId::new(server_name!("example.com")).to_owned();
+    pub static ref TEST_ROOM1_ID: OwnedRoomId =
+        RoomId::new_v1(server_name!("example.com")).to_owned();
     pub static ref TEST_USER1: OwnedUserId = user_id!("@user1:example.com").to_owned();
     pub static ref TEST_USER2: OwnedUserId = user_id!("@user2:example.com").to_owned();
-    pub static ref TEST_USER3: OwnedUserId = user_id!("@user2:example.com").to_owned();
-    pub static ref TEST_USER4: OwnedUserId = user_id!("@user2:example.com").to_owned();
-    pub static ref TEST_USER5: OwnedUserId = user_id!("@user2:example.com").to_owned();
-    pub static ref MSG1_KEY: MessageKey = (LocalEcho, EventId::new(server_name!("example.com")));
-    pub static ref MSG2_KEY: MessageKey =
-        (OriginServer(UInt::new(1).unwrap()), EventId::new(server_name!("example.com")));
-    pub static ref MSG3_KEY: MessageKey = (
-        OriginServer(UInt::new(2).unwrap()),
-        event_id!("$5jRz3KfVhaUzXtVj7k:example.com").to_owned()
-    );
-    pub static ref MSG4_KEY: MessageKey = (
-        OriginServer(UInt::new(2).unwrap()),
-        event_id!("$JP6qFV7WyXk5ZnexM3:example.com").to_owned()
-    );
-    pub static ref MSG5_KEY: MessageKey =
-        (OriginServer(UInt::new(8).unwrap()), EventId::new(server_name!("example.com")));
+    pub static ref TEST_USER3: OwnedUserId = user_id!("@user3:example.com").to_owned();
+    pub static ref TEST_USER4: OwnedUserId = user_id!("@user4:example.com").to_owned();
+    pub static ref TEST_USER5: OwnedUserId = user_id!("@user5:example.com").to_owned();
+    pub static ref MSG1_EVID: OwnedEventId = EventId::new(server_name!("example.com"));
+    pub static ref MSG2_EVID: OwnedEventId = EventId::new(server_name!("example.com"));
+    pub static ref MSG3_EVID: OwnedEventId =
+        event_id!("$5jRz3KfVhaUzXtVj7k:example.com").to_owned();
+    pub static ref MSG4_EVID: OwnedEventId =
+        event_id!("$JP6qFV7WyXk5ZnexM3:example.com").to_owned();
+    pub static ref MSG5_EVID: OwnedEventId = EventId::new(server_name!("example.com"));
+    pub static ref MSG1_KEY: MessageKey = (LocalEcho, MSG1_EVID.clone());
+    pub static ref MSG2_KEY: MessageKey = (OriginServer(UInt::new(1).unwrap()), MSG2_EVID.clone());
+    pub static ref MSG3_KEY: MessageKey = (OriginServer(UInt::new(2).unwrap()), MSG3_EVID.clone());
+    pub static ref MSG4_KEY: MessageKey = (OriginServer(UInt::new(2).unwrap()), MSG4_EVID.clone());
+    pub static ref MSG5_KEY: MessageKey = (OriginServer(UInt::new(8).unwrap()), MSG5_EVID.clone());
+}
+
+pub fn user_style(user: &str) -> Style {
+    user_style_from_color(user_color(user))
+}
+
+pub fn mock_room1_message(
+    content: RoomMessageEventContent,
+    sender: OwnedUserId,
+    key: MessageKey,
+) -> Message {
+    let origin_server_ts = key.0.as_millis().unwrap();
+    let event_id = key.1;
+
+    let event = OriginalRoomMessageEvent {
+        content,
+        event_id,
+        sender,
+        origin_server_ts,
+        room_id: TEST_ROOM1_ID.clone(),
+        unsigned: Default::default(),
+    };
+
+    event.into()
 }
 
 pub fn mock_message1() -> Message {
     let content = RoomMessageEventContent::text_plain("writhe");
-    let content = MessageContent::Original(content.into());
+    let content = MessageEvent::Local(MSG1_EVID.clone(), content.into());
 
     Message::new(content, TEST_USER1.clone(), MSG1_KEY.0)
 }
 
 pub fn mock_message2() -> Message {
     let content = RoomMessageEventContent::text_plain("helium");
-    let content = MessageContent::Original(content.into());
 
-    Message::new(content, TEST_USER2.clone(), MSG2_KEY.0)
+    mock_room1_message(content, TEST_USER2.clone(), MSG2_KEY.clone())
 }
 
 pub fn mock_message3() -> Message {
     let content = RoomMessageEventContent::text_plain("this\nis\na\nmultiline\nmessage");
-    let content = MessageContent::Original(content.into());
 
-    Message::new(content, TEST_USER2.clone(), MSG3_KEY.0)
+    mock_room1_message(content, TEST_USER2.clone(), MSG3_KEY.clone())
 }
 
 pub fn mock_message4() -> Message {
     let content = RoomMessageEventContent::text_plain("help");
-    let content = MessageContent::Original(content.into());
 
-    Message::new(content, TEST_USER1.clone(), MSG4_KEY.0)
+    mock_room1_message(content, TEST_USER1.clone(), MSG4_KEY.clone())
 }
 
 pub fn mock_message5() -> Message {
     let content = RoomMessageEventContent::text_plain("character");
-    let content = MessageContent::Original(content.into());
 
-    Message::new(content, TEST_USER2.clone(), MSG5_KEY.0)
+    mock_room1_message(content, TEST_USER2.clone(), MSG4_KEY.clone())
+}
+
+pub fn mock_keys() -> HashMap<OwnedEventId, EventLocation> {
+    let mut keys = HashMap::new();
+
+    keys.insert(MSG1_EVID.clone(), EventLocation::Message(None, MSG1_KEY.clone()));
+    keys.insert(MSG2_EVID.clone(), EventLocation::Message(None, MSG2_KEY.clone()));
+    keys.insert(MSG3_EVID.clone(), EventLocation::Message(None, MSG3_KEY.clone()));
+    keys.insert(MSG4_EVID.clone(), EventLocation::Message(None, MSG4_KEY.clone()));
+    keys.insert(MSG5_EVID.clone(), EventLocation::Message(None, MSG5_KEY.clone()));
+
+    keys
 }
 
 pub fn mock_messages() -> Messages {
-    let mut messages = BTreeMap::new();
+    let mut messages = Messages::main();
 
     messages.insert(MSG1_KEY.clone(), mock_message1());
     messages.insert(MSG2_KEY.clone(), mock_message2());
@@ -101,48 +150,105 @@ pub fn mock_messages() -> Messages {
 }
 
 pub fn mock_room() -> RoomInfo {
-    RoomInfo {
-        name: Some("Watercooler Discussion".into()),
-        messages: mock_messages(),
-        fetch_id: RoomFetchStatus::NotStarted,
-        fetch_last: None,
-        users_typing: None,
-    }
+    let mut room = RoomInfo::default();
+    room.name = Some("Watercooler Discussion".into());
+    room.keys = mock_keys();
+    *room.get_thread_mut(None) = mock_messages();
+    room
 }
 
 pub fn mock_dirs() -> DirectoryValues {
     DirectoryValues {
         cache: PathBuf::new(),
+        data: PathBuf::new(),
         logs: PathBuf::new(),
-        downloads: PathBuf::new(),
+        downloads: None,
+        image_previews: PathBuf::new(),
+    }
+}
+
+pub fn mock_tunables() -> TunableValues {
+    TunableValues {
+        default_room: None,
+        log_level: Level::INFO,
+        message_shortcode_display: false,
+        normal_after_send: true,
+        reaction_display: true,
+        reaction_shortcode_display: false,
+        read_receipt_send: true,
+        read_receipt_display: true,
+        request_timeout: 120,
+        sort: SortOverrides::default().values(),
+        state_event_display: true,
+        typing_notice_send: true,
+        typing_notice_display: true,
+        users: vec![(TEST_USER5.clone(), UserDisplayTunables {
+            color: Some(UserColor(Color::Black)),
+            name: Some("USER 5".into()),
+        })]
+        .into_iter()
+        .collect::<HashMap<_, _>>(),
+        open_command: None,
+        external_edit_file_suffix: String::from(".md"),
+        username_display: UserDisplayStyle::Username,
+        message_user_color: false,
+        mouse: Default::default(),
+        notifications: Notifications {
+            enabled: false,
+            via: NotifyVia::default(),
+            show_message: true,
+            sound_hint: None,
+        },
+        image_preview: None,
+        user_gutter_width: 30,
+        tabstop: 4,
     }
 }
 
 pub fn mock_settings() -> ApplicationSettings {
     ApplicationSettings {
-        matrix_dir: PathBuf::new(),
+        layout_json: PathBuf::new(),
         session_json: PathBuf::new(),
+        session_json_old: PathBuf::new(),
+        sled_dir: PathBuf::new(),
+        sqlite_dir: PathBuf::new(),
+
         profile_name: "test".into(),
         profile: ProfileConfig {
             user_id: user_id!("@user:example.com").to_owned(),
-            url: Url::parse("https://example.com").unwrap(),
+            url: None,
             settings: None,
             dirs: None,
+            layout: None,
+            macros: None,
         },
-        tunables: TunableValues { typing_notice: true, typing_notice_display: true },
+        tunables: mock_tunables(),
         dirs: mock_dirs(),
+        layout: Default::default(),
+        macros: HashMap::default(),
     }
 }
 
-pub fn mock_store() -> ProgramStore {
-    let (tx, _) = sync_channel(5);
-    let worker = Requester { tx };
+pub async fn mock_store() -> ProgramStore {
+    let (tx, _) = unbounded_channel();
+    let homeserver = Url::parse("https://localhost").unwrap();
+    let client = matrix_sdk::Client::new(homeserver).await.unwrap();
+    let worker = Requester { tx, client };
 
     let mut store = ChatStore::new(worker, mock_settings());
+
+    // Add presence information.
+    store.presences.get_or_default(TEST_USER1.clone());
+    store.presences.get_or_default(TEST_USER2.clone());
+    store.presences.get_or_default(TEST_USER3.clone());
+    store.presences.get_or_default(TEST_USER4.clone());
+    store.presences.get_or_default(TEST_USER5.clone());
+
     let room_id = TEST_ROOM1_ID.clone();
     let info = mock_room();
 
-    store.rooms.insert(room_id, info);
+    store.rooms.insert(room_id.clone(), info);
+    store.names.insert(TEST_ROOM1_ALIAS.to_string(), room_id);
 
     ProgramStore::new(store)
 }

src/util.rs

@@ -0,0 +1,214 @@
+//! # Utility functions
+use std::borrow::Cow;
+
+use unicode_segmentation::UnicodeSegmentation;
+use unicode_width::UnicodeWidthStr;
+
+use ratatui::style::Style;
+use ratatui::text::{Line, Span, Text};
+
+pub fn split_cow(cow: Cow<'_, str>, idx: usize) -> (Cow<'_, str>, Cow<'_, str>) {
+    match cow {
+        Cow::Borrowed(s) => {
+            let s1 = Cow::Borrowed(&s[idx..]);
+            let s0 = Cow::Borrowed(&s[..idx]);
+
+            (s0, s1)
+        },
+        Cow::Owned(mut s) => {
+            let s1 = Cow::Owned(s.split_off(idx));
+            let s0 = Cow::Owned(s);
+
+            (s0, s1)
+        },
+    }
+}
+
+pub fn take_width(s: Cow<'_, str>, width: usize) -> ((Cow<'_, str>, usize), Cow<'_, str>) {
+    // Find where to split the line.
+    let mut w = 0;
+
+    let idx = UnicodeSegmentation::grapheme_indices(s.as_ref(), true)
+        .find_map(|(i, g)| {
+            let gw = UnicodeWidthStr::width(g);
+            if w + gw > width {
+                Some(i)
+            } else {
+                w += gw;
+                None
+            }
+        })
+        .unwrap_or(s.len());
+
+    let (s0, s1) = split_cow(s, idx);
+
+    ((s0, w), s1)
+}
+
+pub struct WrappedLinesIterator<'a> {
+    iter: std::vec::IntoIter<Cow<'a, str>>,
+    curr: Option<Cow<'a, str>>,
+    width: usize,
+}
+
+impl<'a> WrappedLinesIterator<'a> {
+    fn new<T>(input: T, width: usize) -> Self
+    where
+        T: Into<Cow<'a, str>>,
+    {
+        let width = width.max(2);
+
+        let cows: Vec<Cow<'a, str>> = match input.into() {
+            Cow::Borrowed(s) => s.lines().map(Cow::Borrowed).collect(),
+            Cow::Owned(s) => s.lines().map(ToOwned::to_owned).map(Cow::Owned).collect(),
+        };
+
+        WrappedLinesIterator { iter: cows.into_iter(), curr: None, width }
+    }
+}
+
+impl<'a> Iterator for WrappedLinesIterator<'a> {
+    type Item = (Cow<'a, str>, usize);
+
+    fn next(&mut self) -> Option<Self::Item> {
+        if self.curr.is_none() {
+            self.curr = self.iter.next();
+        }
+
+        if let Some(s) = self.curr.take() {
+            let width = UnicodeWidthStr::width(s.as_ref());
+
+            if width <= self.width {
+                return Some((s, width));
+            } else {
+                let (prefix, s1) = take_width(s, self.width);
+                self.curr = Some(s1);
+                return Some(prefix);
+            }
+        } else {
+            return None;
+        }
+    }
+}
+
+pub fn wrap<'a, T>(input: T, width: usize) -> WrappedLinesIterator<'a>
+where
+    T: Into<Cow<'a, str>>,
+{
+    WrappedLinesIterator::new(input, width)
+}
+
+pub fn wrapped_text<'a, T>(s: T, width: usize, style: Style) -> Text<'a>
+where
+    T: Into<Cow<'a, str>>,
+{
+    let mut text = Text::default();
+
+    for (line, w) in wrap(s, width) {
+        let space = space_span(width.saturating_sub(w), style);
+        let spans = Line::from(vec![Span::styled(line, style), space]);
+
+        text.lines.push(spans);
+    }
+
+    return text;
+}
+
+pub fn space(width: usize) -> String {
+    " ".repeat(width)
+}
+
+pub fn space_span(width: usize, style: Style) -> Span<'static> {
+    Span::styled(space(width), style)
+}
+
+pub fn space_text(width: usize, style: Style) -> Text<'static> {
+    space_span(width, style).into()
+}
+
+pub fn join_cell_text<'a>(texts: Vec<(Text<'a>, usize)>, join: Span<'a>, style: Style) -> Text<'a> {
+    let height = texts.iter().map(|t| t.0.height()).max().unwrap_or(0);
+    let mut text = Text::from(vec![Line::from(vec![join.clone()]); height]);
+
+    for (mut t, w) in texts.into_iter() {
+        for i in 0..height {
+            if let Some(line) = t.lines.get_mut(i) {
+                text.lines[i].spans.append(&mut line.spans);
+            } else {
+                text.lines[i].spans.push(space_span(w, style));
+            }
+
+            text.lines[i].spans.push(join.clone());
+        }
+    }
+
+    text
+}
+
+fn replace_emoji_in_grapheme(grapheme: &str) -> String {
+    emojis::get(grapheme)
+        .and_then(|emoji| emoji.shortcode())
+        .map(|shortcode| format!(":{shortcode}:"))
+        .unwrap_or_else(|| grapheme.to_owned())
+}
+
+pub fn replace_emojis_in_str(s: &str) -> String {
+    let graphemes = s.graphemes(true);
+    graphemes.map(replace_emoji_in_grapheme).collect()
+}
+
+pub fn replace_emojis_in_span(span: &mut Span) {
+    span.content = Cow::Owned(replace_emojis_in_str(span.content.as_ref()))
+}
+
+pub fn replace_emojis_in_line(line: &mut Line) {
+    for span in &mut line.spans {
+        replace_emojis_in_span(span);
+    }
+}
+
+#[cfg(test)]
+pub mod tests {
+    use super::*;
+
+    #[test]
+    fn test_wrapped_lines_ascii() {
+        let s = "hello world!\nabcdefghijklmnopqrstuvwxyz\ngoodbye";
+
+        let mut iter = wrap(s, 100);
+        assert_eq!(iter.next(), Some((Cow::Borrowed("hello world!"), 12)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("abcdefghijklmnopqrstuvwxyz"), 26)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("goodbye"), 7)));
+        assert_eq!(iter.next(), None);
+
+        let mut iter = wrap(s, 5);
+        assert_eq!(iter.next(), Some((Cow::Borrowed("hello"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed(" worl"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("d!"), 2)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("abcde"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("fghij"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("klmno"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("pqrst"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("uvwxy"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("z"), 1)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("goodb"), 5)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("ye"), 2)));
+        assert_eq!(iter.next(), None);
+    }
+
+    #[test]
+    fn test_wrapped_lines_unicode() {
+        let s = "ＣＨＩＣＫＥＮ";
+
+        let mut iter = wrap(s, 14);
+        assert_eq!(iter.next(), Some((Cow::Borrowed(s), 14)));
+        assert_eq!(iter.next(), None);
+
+        let mut iter = wrap(s, 5);
+        assert_eq!(iter.next(), Some((Cow::Borrowed("ＣＨ"), 4)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("ＩＣ"), 4)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("ＫＥ"), 4)));
+        assert_eq!(iter.next(), Some((Cow::Borrowed("Ｎ"), 2)));
+        assert_eq!(iter.next(), None);
+    }
+}

src/windows/room/mod.rs

@@ -1,54 +1,79 @@
-use matrix_sdk::room::Room as MatrixRoom;
-use matrix_sdk::ruma::RoomId;
-use matrix_sdk::DisplayName;
+//! # Windows for Matrix rooms and spaces
+use std::collections::HashSet;
 
-use modalkit::tui::{
+use matrix_sdk::{
+    notification_settings::RoomNotificationMode,
+    room::Room as MatrixRoom,
+    ruma::{
+        api::client::{
+            alias::{
+                create_alias::v3::Request as CreateAliasRequest,
+                delete_alias::v3::Request as DeleteAliasRequest,
+            },
+            error::ErrorKind as ClientApiErrorKind,
+        },
+        events::{
+            room::{
+                canonical_alias::RoomCanonicalAliasEventContent,
+                history_visibility::{HistoryVisibility, RoomHistoryVisibilityEventContent},
+                name::RoomNameEventContent,
+                topic::RoomTopicEventContent,
+            },
+            tag::{TagInfo, Tags},
+        },
+        OwnedEventId,
+        OwnedRoomAliasId,
+        OwnedUserId,
+        RoomId,
+    },
+    RoomDisplayName,
+    RoomState as MatrixRoomState,
+};
+
+use ratatui::{
     buffer::Buffer,
-    layout::Rect,
+    layout::{Alignment, Rect},
     style::{Modifier as StyleModifier, Style},
-    text::{Span, Spans},
-    widgets::StatefulWidget,
+    text::{Line, Span, Text},
+    widgets::{Paragraph, StatefulWidget, Widget},
 };
 
-use modalkit::{
-    editing::action::{
-        Action,
-        EditInfo,
-        EditResult,
-        Editable,
-        EditorAction,
-        Jumpable,
-        PromptAction,
-        Promptable,
-        Scrollable,
-    },
-    editing::base::{
-        Axis,
-        CloseFlags,
-        Count,
-        MoveDir1D,
-        OpenTarget,
-        PositionList,
-        ScrollStyle,
-        WordStyle,
-    },
-    input::InputContext,
-    widgets::{TermOffset, TerminalCursor, WindowOps},
+use modalkit::actions::{
+    Action,
+    Editable,
+    EditorAction,
+    Jumpable,
+    PromptAction,
+    Promptable,
+    Scrollable,
 };
+use modalkit::errors::{EditResult, UIError};
+use modalkit::prelude::*;
+use modalkit::{editing::completion::CompletionList, keybindings::dialog::PromptYesNo};
+use modalkit_ratatui::{TermOffset, TerminalCursor, WindowOps};
 
 use crate::base::{
+    IambAction,
+    IambError,
     IambId,
     IambInfo,
     IambResult,
+    MemberUpdateAction,
+    MessageAction,
     ProgramAction,
     ProgramContext,
     ProgramStore,
     RoomAction,
+    RoomField,
+    SendAction,
+    SpaceAction,
 };
 
 use self::chat::ChatState;
 use self::space::{Space, SpaceState};
 
+use std::convert::TryFrom;
+
 mod chat;
 mod scrollback;
 mod space;
@@ -62,43 +87,259 @@ macro_rules! delegate {
     };
 }
 
+fn notification_mode(name: impl Into<String>) -> IambResult<RoomNotificationMode> {
+    let name = name.into();
+
+    let mode = match name.to_lowercase().as_str() {
+        "mute" => RoomNotificationMode::Mute,
+        "mentions" | "keywords" => RoomNotificationMode::MentionsAndKeywordsOnly,
+        "all" => RoomNotificationMode::AllMessages,
+        _ => return Err(IambError::InvalidNotificationLevel(name).into()),
+    };
+
+    Ok(mode)
+}
+
+fn hist_visibility_mode(name: impl Into<String>) -> IambResult<HistoryVisibility> {
+    let name = name.into();
+
+    let mode = match name.to_lowercase().as_str() {
+        "invited" => HistoryVisibility::Invited,
+        "joined" => HistoryVisibility::Joined,
+        "shared" => HistoryVisibility::Shared,
+        "world" | "world_readable" => HistoryVisibility::WorldReadable,
+        _ => return Err(IambError::InvalidHistoryVisibility(name).into()),
+    };
+
+    Ok(mode)
+}
+
+/// State for a Matrix room or space.
+///
+/// Since spaces function as special rooms within Matrix, we wrap their window state together, so
+/// that operations like sending and accepting invites, opening the members window, etc., all work
+/// similarly.
 pub enum RoomState {
-    Chat(ChatState),
-    Space(SpaceState),
+    Chat(Box<ChatState>),
+    Space(Box<SpaceState>),
 }
 
 impl From<ChatState> for RoomState {
     fn from(chat: ChatState) -> Self {
-        RoomState::Chat(chat)
+        RoomState::Chat(Box::new(chat))
     }
 }
 
 impl From<SpaceState> for RoomState {
     fn from(space: SpaceState) -> Self {
-        RoomState::Space(space)
+        RoomState::Space(Box::new(space))
     }
 }
 
 impl RoomState {
-    pub fn new(room: MatrixRoom, name: DisplayName, store: &mut ProgramStore) -> Self {
+    pub fn new(
+        room: MatrixRoom,
+        thread: Option<OwnedEventId>,
+        name: RoomDisplayName,
+        tags: Option<Tags>,
+        store: &mut ProgramStore,
+    ) -> Self {
         let room_id = room.room_id().to_owned();
         let info = store.application.get_room_info(room_id);
         info.name = name.to_string().into();
+        info.tags = tags;
 
         if room.is_space() {
             SpaceState::new(room).into()
         } else {
-            ChatState::new(room, store).into()
+            ChatState::new(room, thread, store).into()
         }
     }
 
-    pub fn room_command(
+    pub fn thread(&self) -> Option<&OwnedEventId> {
+        match self {
+            RoomState::Chat(chat) => chat.thread(),
+            RoomState::Space(_) => None,
+        }
+    }
+
+    pub fn refresh_room(&mut self, store: &mut ProgramStore) {
+        match self {
+            RoomState::Chat(chat) => chat.refresh_room(store),
+            RoomState::Space(space) => space.refresh_room(store),
+        }
+    }
+
+    fn draw_invite(
+        &self,
+        invited: MatrixRoom,
+        area: Rect,
+        buf: &mut Buffer,
+        store: &mut ProgramStore,
+    ) {
+        let inviter = store.application.worker.get_inviter(invited.clone());
+
+        let name = match invited.canonical_alias() {
+            Some(alias) => alias.to_string(),
+            None => format!("{:?}", store.application.get_room_title(self.id())),
+        };
+
+        let mut invited = vec![Span::from(format!("You have been invited to join {name}"))];
+
+        if let Ok(Some(inviter)) = &inviter {
+            let info = store.application.rooms.get_or_default(self.id().to_owned());
+            invited.push(Span::from(" by "));
+            invited.push(store.application.settings.get_user_span(inviter.user_id(), info));
+        }
+
+        let l1 = Line::from(invited);
+        let l2 = Line::from(
+            "You can run `:invite accept` or `:invite reject` to accept or reject this invitation.",
+        );
+        let text = Text::from(vec![l1, l2]);
+
+        Paragraph::new(text).alignment(Alignment::Center).render(area, buf);
+
+        return;
+    }
+
+    pub async fn message_command(
+        &mut self,
+        act: MessageAction,
+        ctx: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        match self {
+            RoomState::Chat(chat) => chat.message_command(act, ctx, store).await,
+            RoomState::Space(_) => Err(IambError::NoSelectedMessage.into()),
+        }
+    }
+
+    pub async fn space_command(
+        &mut self,
+        act: SpaceAction,
+        ctx: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        match self {
+            RoomState::Space(space) => space.space_command(act, ctx, store).await,
+            RoomState::Chat(_) => Err(IambError::NoSelectedSpace.into()),
+        }
+    }
+
+    pub async fn send_command(
+        &mut self,
+        act: SendAction,
+        ctx: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        match self {
+            RoomState::Chat(chat) => chat.send_command(act, ctx, store).await,
+            RoomState::Space(_) => Err(IambError::NoSelectedRoom.into()),
+        }
+    }
+
+    pub async fn room_command(
         &mut self,
         act: RoomAction,
-        _: ProgramContext,
+        ctx: ProgramContext,
         store: &mut ProgramStore,
     ) -> IambResult<Vec<(Action<IambInfo>, ProgramContext)>> {
         match act {
+            RoomAction::InviteAccept => {
+                if let Some(room) = store.application.worker.client.get_room(self.id()) {
+                    let details = room.invite_details().await.map_err(IambError::from)?;
+                    let details = details.invitee.event().original_content();
+                    let is_direct = details.and_then(|ev| ev.is_direct).unwrap_or_default();
+
+                    room.join().await.map_err(IambError::from)?;
+
+                    if is_direct {
+                        room.set_is_direct(true).await.map_err(IambError::from)?;
+                    }
+
+                    Ok(vec![])
+                } else {
+                    Err(IambError::NotInvited.into())
+                }
+            },
+            RoomAction::InviteReject => {
+                if let Some(room) = store.application.worker.client.get_room(self.id()) {
+                    room.leave().await.map_err(IambError::from)?;
+
+                    Ok(vec![])
+                } else {
+                    Err(IambError::NotInvited.into())
+                }
+            },
+            RoomAction::InviteSend(user) => {
+                if let Some(room) = store.application.worker.client.get_room(self.id()) {
+                    room.invite_user_by_id(user.as_ref()).await.map_err(IambError::from)?;
+
+                    Ok(vec![])
+                } else {
+                    Err(IambError::NotJoined.into())
+                }
+            },
+            RoomAction::Leave(skip_confirm) => {
+                if let Some(room) = store.application.worker.client.get_room(self.id()) {
+                    if skip_confirm {
+                        room.leave().await.map_err(IambError::from)?;
+
+                        Ok(vec![])
+                    } else {
+                        let msg = "Do you really want to leave this room?";
+                        let leave = IambAction::Room(RoomAction::Leave(true));
+                        let prompt = PromptYesNo::new(msg, vec![Action::from(leave)]);
+                        let prompt = Box::new(prompt);
+
+                        Err(UIError::NeedConfirm(prompt))
+                    }
+                } else {
+                    Err(IambError::NotJoined.into())
+                }
+            },
+            RoomAction::MemberUpdate(mua, user, reason, skip_confirm) => {
+                let Some(room) = store.application.worker.client.get_room(self.id()) else {
+                    return Err(IambError::NotJoined.into());
+                };
+
+                let Ok(user_id) = OwnedUserId::try_from(user.as_str()) else {
+                    let err = IambError::InvalidUserId(user);
+
+                    return Err(err.into());
+                };
+
+                if !skip_confirm {
+                    let msg = format!("Do you really want to {mua} {user} from this room?");
+                    let act = RoomAction::MemberUpdate(mua, user, reason, true);
+                    let act = IambAction::from(act);
+                    let prompt = PromptYesNo::new(msg, vec![Action::from(act)]);
+                    let prompt = Box::new(prompt);
+
+                    return Err(UIError::NeedConfirm(prompt));
+                }
+
+                match mua {
+                    MemberUpdateAction::Ban => {
+                        room.ban_user(&user_id, reason.as_deref())
+                            .await
+                            .map_err(IambError::from)?;
+                    },
+                    MemberUpdateAction::Unban => {
+                        room.unban_user(&user_id, reason.as_deref())
+                            .await
+                            .map_err(IambError::from)?;
+                    },
+                    MemberUpdateAction::Kick => {
+                        room.kick_user(&user_id, reason.as_deref())
+                            .await
+                            .map_err(IambError::from)?;
+                    },
+                }
+
+                Ok(vec![])
+            },
             RoomAction::Members(mut cmd) => {
                 let width = Count::Exact(30);
                 let act =
@@ -107,20 +348,328 @@ impl RoomState {
                         width.into(),
                     );
 
-                Ok(vec![(act, cmd.context.take())])
+                Ok(vec![(act, cmd.context.clone())])
             },
-            RoomAction::Set(field) => {
-                store.application.worker.set_room(self.id().to_owned(), field)?;
+            RoomAction::SetDirect(is_direct) => {
+                let room = store
+                    .application
+                    .get_joined_room(self.id())
+                    .ok_or(UIError::Application(IambError::NotJoined))?;
+
+                room.set_is_direct(is_direct).await.map_err(IambError::from)?;
 
                 Ok(vec![])
             },
+            RoomAction::Set(field, value) => {
+                let room = store
+                    .application
+                    .get_joined_room(self.id())
+                    .ok_or(UIError::Application(IambError::NotJoined))?;
+
+                match field {
+                    RoomField::History => {
+                        let visibility = hist_visibility_mode(value)?;
+                        let ev = RoomHistoryVisibilityEventContent::new(visibility);
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Name => {
+                        let ev = RoomNameEventContent::new(value);
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Tag(tag) => {
+                        let mut info = TagInfo::new();
+                        info.order = Some(1.0);
+
+                        let _ = room.set_tag(tag, info).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Topic => {
+                        let ev = RoomTopicEventContent::new(value);
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::NotificationMode => {
+                        let mode = notification_mode(value)?;
+                        let client = &store.application.worker.client;
+                        let notifications = client.notification_settings().await;
+
+                        notifications
+                            .set_room_notification_mode(self.id(), mode)
+                            .await
+                            .map_err(IambError::from)?;
+                    },
+                    RoomField::CanonicalAlias => {
+                        let client = &mut store.application.worker.client;
+
+                        let Ok(orai) = OwnedRoomAliasId::try_from(value.as_str()) else {
+                            let err = IambError::InvalidRoomAlias(value);
+
+                            return Err(err.into());
+                        };
+
+                        let mut alt_aliases =
+                            room.alt_aliases().into_iter().collect::<HashSet<_>>();
+                        let canonical_old = room.canonical_alias();
+
+                        // If the room's alias is already that, ignore it
+                        if canonical_old.as_ref() == Some(&orai) {
+                            let msg = format!("The canonical room alias is already {orai}");
+
+                            return Ok(vec![(Action::ShowInfoMessage(msg.into()), ctx)]);
+                        }
+
+                        // Try creating the room alias on the server.
+                        let alias_create_req =
+                            CreateAliasRequest::new(orai.clone(), room.room_id().into());
+                        if let Err(e) = client.send(alias_create_req).await {
+                            if let Some(ClientApiErrorKind::Unknown) = e.client_api_error_kind() {
+                                // Ignore when it already exists.
+                            } else {
+                                return Err(IambError::from(e).into());
+                            }
+                        }
+
+                        // Demote the previous one to an alt alias.
+                        alt_aliases.extend(canonical_old);
+
+                        // At this point the room alias definitely exists, and we can update the
+                        // state event.
+                        let mut ev = RoomCanonicalAliasEventContent::new();
+                        ev.alias = Some(orai);
+                        ev.alt_aliases = alt_aliases.into_iter().collect();
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Alias(alias) => {
+                        let client = &mut store.application.worker.client;
+
+                        let Ok(orai) = OwnedRoomAliasId::try_from(alias.as_str()) else {
+                            let err = IambError::InvalidRoomAlias(alias);
+
+                            return Err(err.into());
+                        };
+
+                        let mut alt_aliases =
+                            room.alt_aliases().into_iter().collect::<HashSet<_>>();
+                        let canonical = room.canonical_alias();
+
+                        if alt_aliases.contains(&orai) || canonical.as_ref() == Some(&orai) {
+                            let msg = format!("The alias {orai} already maps to this room");
+
+                            return Ok(vec![(Action::ShowInfoMessage(msg.into()), ctx)]);
+                        } else {
+                            alt_aliases.insert(orai.clone());
+                        }
+
+                        // If the room alias does not exist on the server, create it
+                        let alias_create_req = CreateAliasRequest::new(orai, room.room_id().into());
+                        if let Err(e) = client.send(alias_create_req).await {
+                            if let Some(ClientApiErrorKind::Unknown) = e.client_api_error_kind() {
+                                // Ignore when it already exists.
+                            } else {
+                                return Err(IambError::from(e).into());
+                            }
+                        }
+
+                        // And add it to the aliases in the state event.
+                        let mut ev = RoomCanonicalAliasEventContent::new();
+                        ev.alias = canonical;
+                        ev.alt_aliases = alt_aliases.into_iter().collect();
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Aliases => {
+                        // This never happens, aliases is only used for showing
+                    },
+                    RoomField::Id => {
+                        // This never happens, id is only used for showing
+                    },
+                }
+
+                Ok(vec![])
+            },
+            RoomAction::Unset(field) => {
+                let room = store
+                    .application
+                    .get_joined_room(self.id())
+                    .ok_or(UIError::Application(IambError::NotJoined))?;
+
+                match field {
+                    RoomField::History => {
+                        let visibility = HistoryVisibility::Joined;
+                        let ev = RoomHistoryVisibilityEventContent::new(visibility);
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Name => {
+                        let ev = RoomNameEventContent::new("".into());
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Tag(tag) => {
+                        let _ = room.remove_tag(tag).await.map_err(IambError::from)?;
+                    },
+                    RoomField::Topic => {
+                        let ev = RoomTopicEventContent::new("".into());
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+                    },
+                    RoomField::NotificationMode => {
+                        let client = &store.application.worker.client;
+                        let notifications = client.notification_settings().await;
+
+                        notifications
+                            .delete_user_defined_room_rules(self.id())
+                            .await
+                            .map_err(IambError::from)?;
+                    },
+                    RoomField::CanonicalAlias => {
+                        let Some(alias_to_destroy) = room.canonical_alias() else {
+                            let msg = "This room has no canonical alias to unset";
+
+                            return Ok(vec![(Action::ShowInfoMessage(msg.into()), ctx)]);
+                        };
+
+                        // Remove the canonical alias from the state event.
+                        let mut ev = RoomCanonicalAliasEventContent::new();
+                        ev.alias = None;
+                        ev.alt_aliases = room.alt_aliases();
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+
+                        // And then unmap it on the server.
+                        let del_req = DeleteAliasRequest::new(alias_to_destroy);
+                        let _ = store
+                            .application
+                            .worker
+                            .client
+                            .send(del_req)
+                            .await
+                            .map_err(IambError::from)?;
+                    },
+                    RoomField::Alias(alias) => {
+                        let Ok(orai) = OwnedRoomAliasId::try_from(alias.as_str()) else {
+                            let err = IambError::InvalidRoomAlias(alias);
+
+                            return Err(err.into());
+                        };
+
+                        let alt_aliases = room.alt_aliases();
+                        let canonical = room.canonical_alias();
+
+                        if !alt_aliases.contains(&orai) && canonical.as_ref() != Some(&orai) {
+                            let msg = format!("The alias {orai:?} isn't mapped to this room");
+
+                            return Ok(vec![(Action::ShowInfoMessage(msg.into()), ctx)]);
+                        }
+
+                        // Remove the alias from the state event if it's in it.
+                        let mut ev = RoomCanonicalAliasEventContent::new();
+                        ev.alias = canonical.filter(|canon| canon != &orai);
+                        ev.alt_aliases = alt_aliases;
+                        ev.alt_aliases.retain(|in_orai| in_orai != &orai);
+                        let _ = room.send_state_event(ev).await.map_err(IambError::from)?;
+
+                        // And then unmap it on the server.
+                        let del_req = DeleteAliasRequest::new(orai);
+                        let _ = store
+                            .application
+                            .worker
+                            .client
+                            .send(del_req)
+                            .await
+                            .map_err(IambError::from)?;
+                    },
+                    RoomField::Aliases => {
+                        // This will not happen, you cannot unset all aliases
+                    },
+                    RoomField::Id => {
+                        // This never happens, id is only used for showing
+                    },
+                }
+
+                Ok(vec![])
+            },
+            RoomAction::Show(field) => {
+                let room = store
+                    .application
+                    .get_joined_room(self.id())
+                    .ok_or(UIError::Application(IambError::NotJoined))?;
+
+                let msg = match field {
+                    RoomField::History => {
+                        let visibility = room.history_visibility();
+                        let visibility = visibility.as_ref().map(|v| v.as_str());
+                        format!("Room history visibility: {}", visibility.unwrap_or("<unknown>"))
+                    },
+                    RoomField::Id => {
+                        let id = room.room_id();
+                        format!("Room identifier: {id}")
+                    },
+                    RoomField::Name => {
+                        match room.name() {
+                            None => "Room has no name".into(),
+                            Some(name) => format!("Room name: {name:?}"),
+                        }
+                    },
+                    RoomField::Topic => {
+                        match room.topic() {
+                            None => "Room has no topic".into(),
+                            Some(topic) => format!("Room topic: {topic:?}"),
+                        }
+                    },
+                    RoomField::NotificationMode => {
+                        let client = &store.application.worker.client;
+                        let notifications = client.notification_settings().await;
+                        let mode =
+                            notifications.get_user_defined_room_notification_mode(self.id()).await;
+
+                        let level = match mode {
+                            Some(RoomNotificationMode::Mute) => "mute",
+                            Some(RoomNotificationMode::MentionsAndKeywordsOnly) => "keywords",
+                            Some(RoomNotificationMode::AllMessages) => "all",
+                            None => "default",
+                        };
+
+                        format!("Room notification level: {level:?}")
+                    },
+                    RoomField::Aliases => {
+                        let aliases = room
+                            .alt_aliases()
+                            .iter()
+                            .map(OwnedRoomAliasId::to_string)
+                            .collect::<Vec<String>>();
+
+                        if aliases.is_empty() {
+                            "No alternative aliases in room".into()
+                        } else {
+                            format!("Alternative aliases: {}.", aliases.join(", "))
+                        }
+                    },
+                    RoomField::CanonicalAlias => {
+                        match room.canonical_alias() {
+                            None => "No canonical alias for room".into(),
+                            Some(can) => format!("Canonical alias: {can}"),
+                        }
+                    },
+                    RoomField::Tag(_) => "Cannot currently show value for a tag".into(),
+                    RoomField::Alias(_) => {
+                        "Cannot show a single alias; use `:room aliases show` instead.".into()
+                    },
+                };
+
+                let msg = InfoMessage::Pager(msg);
+                let act = Action::ShowInfoMessage(msg);
+
+                Ok(vec![(act, ctx)])
+            },
         }
     }
 
-    pub fn get_title(&self, store: &mut ProgramStore) -> Spans {
+    pub fn get_title(&self, store: &mut ProgramStore) -> Line<'_> {
         let title = store.application.get_room_title(self.id());
         let style = Style::default().add_modifier(StyleModifier::BOLD);
-        let mut spans = vec![Span::styled(title, style)];
+        let mut spans = vec![];
+
+        if let RoomState::Chat(chat) = self {
+            if chat.thread().is_some() {
+                spans.push("Thread in ".into());
+            }
+        }
+
+        spans.push(Span::styled(title, style));
 
         match self.room().topic() {
             Some(desc) if !desc.is_empty() => {
@@ -131,7 +680,7 @@ impl RoomState {
             _ => {},
         }
 
-        Spans(spans)
+        Line::from(spans)
     }
 
     pub fn focus_toggle(&mut self) {
@@ -209,6 +758,14 @@ impl TerminalCursor for RoomState {
 
 impl WindowOps<IambInfo> for RoomState {
     fn draw(&mut self, area: Rect, buf: &mut Buffer, focused: bool, store: &mut ProgramStore) {
+        if self.room().state() == MatrixRoomState::Invited {
+            self.refresh_room(store);
+        }
+
+        if self.room().state() == MatrixRoomState::Invited {
+            self.draw_invite(self.room().clone(), area, buf, store);
+        }
+
         match self {
             RoomState::Chat(chat) => chat.draw(area, buf, focused, store),
             RoomState::Space(space) => {
@@ -219,15 +776,35 @@ impl WindowOps<IambInfo> for RoomState {
 
     fn dup(&self, store: &mut ProgramStore) -> Self {
         match self {
-            RoomState::Chat(chat) => RoomState::Chat(chat.dup(store)),
-            RoomState::Space(space) => RoomState::Space(space.dup(store)),
+            RoomState::Chat(chat) => RoomState::Chat(Box::new(chat.dup(store))),
+            RoomState::Space(space) => RoomState::Space(Box::new(space.dup(store))),
         }
     }
 
-    fn close(&mut self, _: CloseFlags, _: &mut ProgramStore) -> bool {
-        // XXX: what's the right closing behaviour for a room?
-        // Should write send a message?
-        true
+    fn close(&mut self, flags: CloseFlags, store: &mut ProgramStore) -> bool {
+        match self {
+            RoomState::Chat(chat) => chat.close(flags, store),
+            RoomState::Space(space) => space.close(flags, store),
+        }
+    }
+
+    fn write(
+        &mut self,
+        path: Option<&str>,
+        flags: WriteFlags,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        match self {
+            RoomState::Chat(chat) => chat.write(path, flags, store),
+            RoomState::Space(space) => space.write(path, flags, store),
+        }
+    }
+
+    fn get_completions(&self) -> Option<CompletionList> {
+        match self {
+            RoomState::Chat(chat) => chat.get_completions(),
+            RoomState::Space(space) => space.get_completions(),
+        }
     }
 
     fn get_cursor_word(&self, style: &WordStyle) -> Option<String> {
@@ -244,3 +821,27 @@ impl WindowOps<IambInfo> for RoomState {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_parse_room_notification_level() {
+        let tests = vec![
+            ("mute", RoomNotificationMode::Mute),
+            ("mentions", RoomNotificationMode::MentionsAndKeywordsOnly),
+            ("keywords", RoomNotificationMode::MentionsAndKeywordsOnly),
+            ("all", RoomNotificationMode::AllMessages),
+        ];
+
+        for (input, expect) in tests {
+            let res = notification_mode(input).unwrap();
+            assert_eq!(expect, res);
+        }
+
+        assert!(notification_mode("invalid").is_err());
+        assert!(notification_mode("not a level").is_err());
+        assert!(notification_mode("@user:example.com").is_err());
+    }
+}

src/windows/room/space.rs

@@ -1,34 +1,69 @@
+//! Window for Matrix spaces
 use std::ops::{Deref, DerefMut};
+use std::str::FromStr;
+use std::time::{Duration, Instant};
 
+use matrix_sdk::ruma::events::space::child::SpaceChildEventContent;
+use matrix_sdk::ruma::events::StateEventType;
+use matrix_sdk::ruma::OwnedSpaceChildOrder;
 use matrix_sdk::{
     room::Room as MatrixRoom,
     ruma::{OwnedRoomId, RoomId},
 };
 
-use modalkit::tui::{buffer::Buffer, layout::Rect, widgets::StatefulWidget};
-
-use modalkit::{
-    widgets::list::{List, ListState},
-    widgets::{TermOffset, TerminalCursor, WindowOps},
+use modalkit::prelude::{EditInfo, InfoMessage};
+use ratatui::{
+    buffer::Buffer,
+    layout::Rect,
+    style::{Color, Style},
+    text::{Line, Span, Text},
+    widgets::StatefulWidget,
 };
 
-use crate::base::{IambBufferId, IambInfo, ProgramStore, RoomFocus};
+use modalkit_ratatui::{
+    list::{List, ListState},
+    TermOffset,
+    TerminalCursor,
+    WindowOps,
+};
 
-use crate::windows::RoomItem;
+use crate::base::{
+    IambBufferId,
+    IambError,
+    IambInfo,
+    IambResult,
+    ProgramContext,
+    ProgramStore,
+    RoomFocus,
+    SpaceAction,
+};
 
+use crate::windows::{room_fields_cmp, RoomItem, RoomLikeItem};
+
+const SPACE_HIERARCHY_DEBOUNCE: Duration = Duration::from_secs(5);
+
+/// State needed for rendering [Space].
 pub struct SpaceState {
     room_id: OwnedRoomId,
     room: MatrixRoom,
     list: ListState<RoomItem, IambInfo>,
+    last_fetch: Option<Instant>,
 }
 
 impl SpaceState {
     pub fn new(room: MatrixRoom) -> Self {
         let room_id = room.room_id().to_owned();
-        let content = IambBufferId::Room(room_id.clone(), RoomFocus::Scrollback);
+        let content = IambBufferId::Room(room_id.clone(), None, RoomFocus::Scrollback);
         let list = ListState::new(content, vec![]);
+        let last_fetch = None;
 
-        SpaceState { room_id, room, list }
+        SpaceState { room_id, room, list, last_fetch }
+    }
+
+    pub fn refresh_room(&mut self, store: &mut ProgramStore) {
+        if let Some(room) = store.application.worker.client.get_room(self.id()) {
+            self.room = room;
+        }
     }
 
     pub fn room(&self) -> &MatrixRoom {
@@ -44,6 +79,80 @@ impl SpaceState {
             room_id: self.room_id.clone(),
             room: self.room.clone(),
             list: self.list.dup(store),
+            last_fetch: self.last_fetch,
+        }
+    }
+
+    pub async fn space_command(
+        &mut self,
+        act: SpaceAction,
+        _: ProgramContext,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        match act {
+            SpaceAction::SetChild(child_id, order, suggested) => {
+                if !self
+                    .room
+                    .power_levels()
+                    .await
+                    .map_err(matrix_sdk::Error::from)
+                    .map_err(IambError::from)?
+                    .user_can_send_state(
+                        &store.application.settings.profile.user_id,
+                        StateEventType::SpaceChild,
+                    )
+                {
+                    return Err(IambError::InsufficientPermission.into());
+                }
+
+                let via = self.room.route().await.map_err(IambError::from)?;
+                let mut ev = SpaceChildEventContent::new(via);
+                ev.order = order
+                    .as_deref()
+                    .map(OwnedSpaceChildOrder::from_str)
+                    .transpose()
+                    .map_err(IambError::InvalidSpaceChildOrder)?;
+                ev.suggested = suggested;
+                let _ = self
+                    .room
+                    .send_state_event_for_key(&child_id, ev)
+                    .await
+                    .map_err(IambError::from)?;
+
+                Ok(InfoMessage::from("Space updated").into())
+            },
+            SpaceAction::RemoveChild => {
+                let space = self.list.get().ok_or(IambError::NoSelectedRoomOrSpaceItem)?;
+                if !self
+                    .room
+                    .power_levels()
+                    .await
+                    .map_err(matrix_sdk::Error::from)
+                    .map_err(IambError::from)?
+                    .user_can_send_state(
+                        &store.application.settings.profile.user_id,
+                        StateEventType::SpaceChild,
+                    )
+                {
+                    return Err(IambError::InsufficientPermission.into());
+                }
+
+                let ev = SpaceChildEventContent::new(vec![]);
+                let event_id = self
+                    .room
+                    .send_state_event_for_key(&space.room_id().to_owned(), ev)
+                    .await
+                    .map_err(IambError::from)?;
+
+                // Fix for element (see https://github.com/element-hq/element-web/issues/29606)
+                let _ = self
+                    .room
+                    .redact(&event_id.event_id, Some("workaround for element bug"), None)
+                    .await
+                    .map_err(IambError::from)?;
+
+                Ok(InfoMessage::from("Room removed").into())
+            },
         }
     }
 }
@@ -68,6 +177,7 @@ impl DerefMut for SpaceState {
     }
 }
 
+/// [StatefulWidget] for Matrix spaces.
 pub struct Space<'a> {
     focused: bool,
     store: &'a mut ProgramStore,
@@ -84,28 +194,59 @@ impl<'a> Space<'a> {
     }
 }
 
-impl<'a> StatefulWidget for Space<'a> {
+impl StatefulWidget for Space<'_> {
     type State = SpaceState;
 
     fn render(self, area: Rect, buffer: &mut Buffer, state: &mut Self::State) {
-        let members = self.store.application.worker.space_members(state.room_id.clone()).unwrap();
-        let items = members
-            .into_iter()
-            .filter_map(|id| {
-                let (room, name) = self.store.application.worker.get_room(id.clone()).ok()?;
+        let mut empty_message = None;
+        let need_fetch = match state.last_fetch {
+            Some(i) => i.elapsed() >= SPACE_HIERARCHY_DEBOUNCE,
+            None => true,
+        };
 
-                if id != state.room_id {
-                    Some(RoomItem::new(room, name, self.store))
-                } else {
-                    None
-                }
-            })
-            .collect();
+        if need_fetch {
+            let res = self.store.application.worker.space_members(state.room_id.clone());
 
-        state.list.set(items);
+            match res {
+                Ok(members) => {
+                    let mut items = members
+                        .into_iter()
+                        .filter_map(|id| {
+                            let (room, _, tags) =
+                                self.store.application.worker.get_room(id.clone()).ok()?;
+                            let room_info = std::sync::Arc::new((room, tags));
 
-        List::new(self.store)
-            .focus(self.focused)
-            .render(area, buffer, &mut state.list)
+                            if id != state.room_id {
+                                Some(RoomItem::new(room_info, self.store))
+                            } else {
+                                None
+                            }
+                        })
+                        .collect::<Vec<_>>();
+                    let fields = &self.store.application.settings.tunables.sort.rooms;
+                    let collator = &mut self.store.application.collator;
+                    items.sort_by(|a, b| room_fields_cmp(a, b, fields, collator));
+
+                    state.list.set(items);
+                    state.last_fetch = Some(Instant::now());
+                },
+                Err(e) => {
+                    let lines = vec![
+                        Line::from("Unable to fetch space room hierarchy:"),
+                        Span::styled(e.to_string(), Style::default().fg(Color::Red)).into(),
+                    ];
+
+                    empty_message = Text::from(lines).into();
+                },
+            }
+        }
+
+        let mut list = List::new(self.store).focus(self.focused);
+
+        if let Some(text) = empty_message {
+            list = list.empty_message(text);
+        }
+
+        list.render(area, buffer, &mut state.list)
     }
 }

src/windows/welcome.md

@@ -12,6 +12,7 @@
 
 - `:dms` will open a list of direct messages
 - `:rooms` will open a list of joined rooms
+- `:chats` will open a list containing both direct messages and rooms
 - `:members` will open a list of members for the currently focused room or space
 - `:spaces` will open a list of joined spaces
 - `:join` can be used to switch to join a new room or start a direct message
@@ -36,10 +37,10 @@ The different subcommands are:
 
 ## Additional Configuration
 
-You can customize iamb in your `$CONFIG_DIR/iamb/config.json` file, where
-`$CONFIG_DIR` is your system's per-user configuration directory.
+You can customize iamb in your `$CONFIG_DIR/iamb/config.toml` file, where
+`$CONFIG_DIR` is your system's per-user configuration directory. For example,
+this is typically `~/.config/iamb/config.toml` on systems that use the XDG
+Base Directory Specification.
 
-You can edit the following values in the file:
-
-- `"default_profile"`, a profile name to use when starting iamb if one wasn't specified
-- `"cache"`, a directory for cached iamb
+See the manual pages or <https://iamb.chat> for more details on how to
+further configure or use iamb.

src/windows/welcome.rs

@@ -1,16 +1,14 @@
+//! Welcome Window
 use std::ops::{Deref, DerefMut};
 
-use modalkit::tui::{buffer::Buffer, layout::Rect};
+use ratatui::{buffer::Buffer, layout::Rect};
 
-use modalkit::{
-    widgets::textbox::TextBoxState,
-    widgets::WindowOps,
-    widgets::{TermOffset, TerminalCursor},
-};
+use modalkit_ratatui::{textbox::TextBoxState, TermOffset, TerminalCursor, WindowOps};
 
-use modalkit::editing::base::{CloseFlags, WordStyle};
+use modalkit::editing::completion::CompletionList;
+use modalkit::prelude::*;
 
-use crate::base::{IambBufferId, IambInfo, ProgramStore};
+use crate::base::{IambBufferId, IambInfo, IambResult, ProgramStore};
 
 const WELCOME_TEXT: &str = include_str!("welcome.md");
 
@@ -63,6 +61,19 @@ impl WindowOps<IambInfo> for WelcomeState {
         self.tbox.close(flags, store)
     }
 
+    fn write(
+        &mut self,
+        path: Option<&str>,
+        flags: WriteFlags,
+        store: &mut ProgramStore,
+    ) -> IambResult<EditInfo> {
+        self.tbox.write(path, flags, store)
+    }
+
+    fn get_completions(&self) -> Option<CompletionList> {
+        self.tbox.get_completions()
+    }
+
     fn get_cursor_word(&self, style: &WordStyle) -> Option<String> {
         self.tbox.get_cursor_word(style)
     }