msi/msix support

update theme to match new site

.github/workflows/windows-msi-build.yml

@@ -0,0 +1,428 @@
+name: Windows MSI/MSIX Build
+
+on:
+  push:
+    branches:
+      - master
+      - 'release/**'
+  pull_request:
+    branches:
+      - master
+  workflow_dispatch:
+
+jobs:
+  windows_msi_build:
+    runs-on: windows-2022
+
+    permissions:
+      contents: read
+      id-token: write
+      attestations: write
+      artifact-metadata: write
+
+    strategy:
+      matrix:
+        platform: [x64]
+        arch: [x64]
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.14.3'
+          architecture: ${{ matrix.arch }}
+
+      - name: Install Dependencies
+        shell: pwsh
+        run: |
+          New-Item -Name "deps" -ItemType "Directory" -Force | Out-Null
+
+          python -m pip install --upgrade pip
+          python -m pip install cffi
+          python -m pip install zstandard
+
+          $ProgressPreference = 'SilentlyContinue'
+          function Download-WithRetry {
+            param(
+              [string]$Url,
+              [string]$OutFile,
+              [int]$MaxAttempts = 5,
+              [int]$InitialDelaySeconds = 2
+            )
+            for ($attempt = 1; $attempt -le $MaxAttempts; $attempt++) {
+              try {
+                Invoke-WebRequest -Uri $Url -OutFile $OutFile -ErrorAction Stop
+                return
+              }
+              catch {
+                if ($attempt -eq $MaxAttempts) {
+                  throw
+                }
+                Start-Sleep -Seconds ($InitialDelaySeconds * [math]::Pow(2, $attempt - 1))
+              }
+            }
+          }
+
+          # The existing solution includes installer.vcxproj, so Inno Setup is
+          # still required to build the unmodified solution. This workflow does
+          # not publish that EXE; it packages the same staged rel tree as MSI/MSIX.
+          Download-WithRetry -Url https://github.com/jrsoftware/issrc/releases/download/is-6_7_1/innosetup-6.7.1.exe -OutFile deps\innosetup-unicode.exe
+          & deps\innosetup-unicode.exe /VERYSILENT | Out-Null
+
+          # Use the same GTK runtime as the existing Windows EXE workflow.
+          Download-WithRetry -Url https://github.com/ZoiteChat/gvsbuild/releases/download/zoitechat-2.20.0-alpha.1/GTK3_Gvsbuild_zoitechat-2.20.0-alpha.1_x64.zip -OutFile deps\gtk-${{ matrix.arch }}.zip
+          Expand-Archive -LiteralPath deps\gtk-${{ matrix.arch }}.zip -DestinationPath C:\gtk-build\gtk\x64\release -Force
+
+          # The GTK3 bundle does not contain librsvg. Restore the renderer,
+          # pixbuf loader, and license from the matching GTK4 bundle. Do not
+          # replace the rest of the GTK3 runtime with GTK4 libraries.
+          Download-WithRetry -Url https://github.com/ZoiteChat/gvsbuild/releases/download/zoitechat-2.20.0-alpha.1/GTK4_Gvsbuild_zoitechat-2.20.0-alpha.1_x64.zip -OutFile deps\svg-runtime.zip
+          if ((Get-FileHash deps\svg-runtime.zip -Algorithm SHA256).Hash -ne 'fb657f9ebae3a6807defb15e66091d643a703ee66cb37488e3e11e5646f45adb') {
+            throw 'Unexpected SVG runtime archive checksum'
+          }
+          $svgArchive = [System.IO.Compression.ZipFile]::OpenRead((Resolve-Path deps\svg-runtime.zip))
+          try {
+            foreach ($name in @('bin/rsvg-2-2.dll', 'lib/gdk-pixbuf-2.0/2.10.0/loaders/pixbufloader_svg.dll', 'share/doc/librsvg/COPYING.LIB')) {
+              $entry = $svgArchive.GetEntry($name)
+              if ($null -eq $entry) { throw "Missing SVG runtime file: $name" }
+              $destination = Join-Path 'C:\gtk-build\gtk\x64\release' $name
+              New-Item -ItemType Directory -Path (Split-Path $destination) -Force | Out-Null
+              [System.IO.Compression.ZipFileExtensions]::ExtractToFile($entry, $destination, $true)
+            }
+          }
+          finally { $svgArchive.Dispose() }
+
+          # Ensure SVG remains loadable before compiling or packaging.
+          & C:\gtk-build\gtk\x64\release\bin\gdk-pixbuf-query-loaders.exe --update-cache
+          if ($LASTEXITCODE -ne 0) { throw 'Could not generate the pixbuf loader cache' }
+          if (-not (Select-String -LiteralPath 'C:\gtk-build\gtk\x64\release\lib\gdk-pixbuf-2.0\2.10.0\loaders.cache' -SimpleMatch '"svg"')) {
+            throw 'SVG loader could not be loaded with the GTK3 runtime'
+          }
+
+          Download-WithRetry -Url https://repo.msys2.org/mingw/x86_64/mingw-w64-x86_64-hicolor-icon-theme-0.18-1-any.pkg.tar.zst -OutFile deps\hicolor-icon-theme.pkg.tar.zst
+          python -c "import tarfile,zstandard,pathlib;archive=pathlib.Path(r'deps\\hicolor-icon-theme.pkg.tar.zst');target=pathlib.Path(r'C:\\gtk-build\\gtk\\x64\\release');dctx=zstandard.ZstdDecompressor();f=archive.open('rb');reader=dctx.stream_reader(f);tf=tarfile.open(fileobj=reader,mode='r|');[tf.extract(m,path=target) for m in tf if m.name.startswith('mingw64/share/icons/hicolor/')];tf.close();reader.close();f.close()"
+
+          Download-WithRetry -Url https://repo.msys2.org/mingw/x86_64/mingw-w64-x86_64-libarchive-3.8.6-1-any.pkg.tar.zst -OutFile deps\libarchive.pkg.tar.zst
+          python -c "import tarfile,zstandard,pathlib;archive=pathlib.Path(r'deps\\libarchive.pkg.tar.zst');target=pathlib.Path(r'C:\\gtk-build\\gtk\\x64\\release');dctx=zstandard.ZstdDecompressor();f=archive.open('rb');reader=dctx.stream_reader(f);tf=tarfile.open(fileobj=reader,mode='r|');[tf.extract(m,path=target) for m in tf if m.name.startswith(('mingw64/include/archive','mingw64/lib/libarchive','mingw64/bin/libarchive'))];tf.close();reader.close();f.close()"
+
+          if (Test-Path C:\gtk-build\gtk\x64\release\mingw64\share\icons\hicolor) {
+            New-Item -Path C:\gtk-build\gtk\x64\release\share\icons -ItemType Directory -Force | Out-Null
+            Copy-Item -Path C:\gtk-build\gtk\x64\release\mingw64\share\icons\hicolor -Destination C:\gtk-build\gtk\x64\release\share\icons\hicolor -Recurse -Force
+          }
+          if (Test-Path C:\gtk-build\gtk\x64\release\mingw64\include) {
+            New-Item -Path C:\gtk-build\gtk\x64\release\include -ItemType Directory -Force | Out-Null
+            Copy-Item -Path C:\gtk-build\gtk\x64\release\mingw64\include\archive* -Destination C:\gtk-build\gtk\x64\release\include -Recurse -Force
+          }
+          if (Test-Path C:\gtk-build\gtk\x64\release\mingw64\lib) {
+            New-Item -Path C:\gtk-build\gtk\x64\release\lib -ItemType Directory -Force | Out-Null
+            Copy-Item -Path C:\gtk-build\gtk\x64\release\mingw64\lib\libarchive* -Destination C:\gtk-build\gtk\x64\release\lib -Force
+          }
+          if (Test-Path C:\gtk-build\gtk\x64\release\mingw64\bin) {
+            New-Item -Path C:\gtk-build\gtk\x64\release\bin -ItemType Directory -Force | Out-Null
+            Copy-Item -Path C:\gtk-build\gtk\x64\release\mingw64\bin\libarchive*.dll -Destination C:\gtk-build\gtk\x64\release\bin -Force
+          }
+          if (Test-Path C:\gtk-build\gtk\x64\release\mingw64) {
+            Remove-Item -Path C:\gtk-build\gtk\x64\release\mingw64 -Recurse -Force
+          }
+
+          Download-WithRetry -Url https://github.com/ZoiteChat/gvsbuild/releases/download/zoitechat-2.18.0-pre4/gendef20260315.7z -OutFile deps\gendef.7z
+          & 7z.exe x deps\gendef.7z -oC:\gtk-build
+
+          Download-WithRetry -Url https://github.com/ZoiteChat/gvsbuild/releases/download/zoitechat-2.18.0-pre4/WinSparkle-20260315.7z -OutFile deps\WinSparkle.7z
+          & 7z.exe x deps\WinSparkle.7z -oC:\gtk-build\WinSparkle
+
+          Download-WithRetry -Url https://github.com/ZoiteChat/gvsbuild/releases/download/zoitechat-2.18.0-pre4/perl-5.42.0.1-${{ matrix.arch }}.7z -OutFile deps\perl-${{ matrix.arch }}.7z
+          & 7z.exe x deps\perl-${{ matrix.arch }}.7z -oC:\gtk-build\perl-5.42.0.1\${{ matrix.platform }}
+
+          $pyRoot = $env:pythonLocation
+          if (-not $pyRoot) { $pyRoot = & python -c "import sys; print(sys.prefix)" }
+
+          foreach ($pyDir in @("C:\gtk-build\python-3.14.3", "C:\gtk-build\python-3.14")) {
+            New-Item -Path $pyDir -ItemType Directory -Force | Out-Null
+            $target = Join-Path $pyDir "${{ matrix.platform }}"
+            if (Test-Path $target) { Remove-Item $target -Recurse -Force }
+            New-Item -Path $pyDir -Name "${{ matrix.platform }}" -ItemType Junction -Value $pyRoot | Out-Null
+          }
+
+      - uses: actions/setup-python@v6
+        with:
+          python-version: '3.8.10'
+          architecture: ${{ matrix.arch }}
+
+      - name: Prepare Python 3.8
+        shell: pwsh
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install cffi
+
+          $pyRoot = $env:pythonLocation
+          if (-not $pyRoot) { $pyRoot = & python -c "import sys; print(sys.prefix)" }
+
+          foreach ($pyDir in @("C:\gtk-build\python-3.8.10", "C:\gtk-build\python-3.8")) {
+            New-Item -Path $pyDir -ItemType Directory -Force | Out-Null
+            $target = Join-Path $pyDir "${{ matrix.platform }}"
+            if (Test-Path $target) { Remove-Item $target -Recurse -Force }
+            New-Item -Path $pyDir -Name "${{ matrix.platform }}" -ItemType Junction -Value $pyRoot | Out-Null
+          }
+
+      - name: Build
+        shell: cmd
+        run: |
+          call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\Tools\VsDevCmd.bat"
+
+          set "PYTHON_DIR=C:\gtk-build\python-3.14.3\${{ matrix.platform }}"
+          if not exist "%PYTHON_DIR%\libs\python314.lib" (
+            echo Missing %PYTHON_DIR%\libs\python314.lib
+            dir "%PYTHON_DIR%\libs"
+            exit /b 1
+          )
+
+          set "PYTHON38_DIR=C:\gtk-build\python-3.8\${{ matrix.platform }}"
+          if not exist "%PYTHON38_DIR%\libs\python38.lib" (
+            echo Missing %PYTHON38_DIR%\libs\python38.lib
+            dir "%PYTHON38_DIR%\libs"
+            exit /b 1
+          )
+          if not exist "%PYTHON38_DIR%\Lib\site-packages\_cffi_backend.cp38*.pyd" (
+            echo Missing %PYTHON38_DIR%\Lib\site-packages\_cffi_backend.cp38*.pyd
+            exit /b 1
+          )
+
+          set "LIB=%PYTHON_DIR%\libs;%LIB%"
+          set "INCLUDE=%PYTHON_DIR%\include;%INCLUDE%"
+
+          powershell -NoProfile -ExecutionPolicy Bypass -Command "$archiveLib='C:\gtk-build\gtk\x64\release\lib\libarchive.lib'; if (-not (Test-Path $archiveLib)) { $archiveDll = Get-ChildItem 'C:\gtk-build\gtk\x64\release\bin\libarchive*.dll' | Select-Object -First 1; if ($archiveDll) { Push-Location 'C:\gtk-build\gtk\x64\release\lib'; & 'C:\gtk-build\gendef\gendef.exe' $archiveDll.FullName | Out-Null; $archiveDef = Get-ChildItem 'libarchive*.def' | Select-Object -First 1; if ($archiveDef) { & lib /def:$archiveDef.Name /machine:${{ matrix.platform }} /out:libarchive.lib | Out-Null }; Pop-Location } }"
+
+          msbuild win32\zoitechat.sln /m /verbosity:minimal /p:Configuration=Release /p:Platform=${{ matrix.platform }}
+          if errorlevel 1 exit /b 1
+
+          if not exist "..\zoitechat-build\${{ matrix.platform }}\rel\plugins\hcpython38.dll" (
+            echo hcpython38.dll was not built
+            exit /b 1
+          )
+          if not exist "..\zoitechat-build\${{ matrix.platform }}\rel\_cffi_backend.cp38*.pyd" (
+            echo _cffi_backend for Python 3.8 was not staged for the installer
+            exit /b 1
+          )
+
+      # Master added native emoji font staging and tests after the release
+      # branch split. Run these before packaging so MSI/MSIX use verified files.
+      - name: Test emoji catalog, font coverage and picker
+        shell: cmd
+        run: |
+          call "C:\Program Files\Microsoft Visual Studio\2022\Enterprise\Common7\Tools\VsDevCmd.bat"
+          set "PATH=%CD%\..\zoitechat-build\x64\rel;%PATH%"
+          set "GDK_PIXBUF_MODULE_FILE=%CD%\..\zoitechat-build\x64\rel\lib\gdk-pixbuf-2.0\2.10.0\loaders.cache"
+          set "ZOITECHAT_EMOJI_FONT=%CD%\..\zoitechat-build\x64\rel\share\fonts\zoitechat\NotoColorEmoji.ttf"
+          fc /b data\fonts\NotoColorEmoji.ttf "%ZOITECHAT_EMOJI_FONT%"
+          if errorlevel 1 exit /b 1
+          for %%T in (data font ui) do (
+            msbuild win32\emoji-tests.vcxproj /m /verbosity:minimal /p:Configuration=Release /p:Platform=x64 /p:EmojiTestKind=%%T
+            if errorlevel 1 exit /b 1
+            ..\zoitechat-build\x64\tests\emoji-%%T-tests.exe --tap
+            if errorlevel 1 exit /b 1
+          )
+
+      - name: Install WiX Toolset
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          # Keep this pinned. WiX v6 introduced OSMF terms and WiX v7 adds
+          # explicit EULA acceptance; do not silently accept new terms in CI.
+          dotnet tool install --tool-path .wix wix --version 5.0.2
+          if ($LASTEXITCODE -ne 0) { throw 'Failed to install WiX Toolset 5.0.2' }
+          & .\.wix\wix.exe --version
+          if ($LASTEXITCODE -ne 0) { throw 'WiX Toolset could not be executed' }
+
+      - name: Build MSI
+        id: build_msi
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+
+          $rawVersion = (Get-Content VERSION -Raw).Trim()
+          if ($rawVersion -notmatch '^(\d+)\.(\d+)\.(\d+)') {
+            throw "VERSION '$rawVersion' does not begin with an MSI-compatible major.minor.patch version"
+          }
+
+          # Keep the full development version in the filename, while MSI's
+          # ProductVersion is numeric (e.g. 2.20.0-dev -> 2.20.0).
+          $msiVersion = "$($Matches[1]).$($Matches[2]).$($Matches[3])"
+          $safeVersion = $rawVersion -replace '[^0-9A-Za-z._-]', '-'
+          $sourceDir = (Resolve-Path "..\zoitechat-build\${{ matrix.platform }}\rel").Path
+          $outputPath = Join-Path $PWD "ZoiteChat-${safeVersion}_${{ matrix.arch }}.msi"
+
+          if (-not (Test-Path (Join-Path $sourceDir 'zoitechat.exe'))) {
+            throw "Staged ZoiteChat executable is missing from $sourceDir"
+          }
+
+          & .\.wix\wix.exe build win32\wix\zoitechat.wxs `
+            -arch x64 `
+            -d "SourceDir=$sourceDir" `
+            -d "ProductVersion=$msiVersion" `
+            -out $outputPath
+          if ($LASTEXITCODE -ne 0) { throw 'WiX MSI build failed' }
+
+          if (-not (Test-Path $outputPath)) {
+            throw "Expected MSI was not created: $outputPath"
+          }
+
+          "path=$outputPath" >> $env:GITHUB_OUTPUT
+          "filename=$(Split-Path $outputPath -Leaf)" >> $env:GITHUB_OUTPUT
+
+      - name: Test MSI administrative extraction
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $msi = '${{ steps.build_msi.outputs.path }}'
+          $adminImage = Join-Path $PWD 'msi-admin-image'
+          New-Item -ItemType Directory -Path $adminImage -Force | Out-Null
+
+          $arguments = "/a `"$msi`" /qn TARGETDIR=`"$adminImage`""
+          $process = Start-Process -FilePath msiexec.exe -ArgumentList $arguments -Wait -PassThru
+          if ($process.ExitCode -ne 0) {
+            throw "MSI administrative extraction failed with exit code $($process.ExitCode)"
+          }
+
+          foreach ($requiredFile in @(
+            'zoitechat.exe',
+            'hclua.dll',
+            'hcupd.dll',
+            'WinSparkle.dll',
+            'hcchecksum.dll',
+            'hcexec.dll',
+            'hcfishlim.dll',
+            'hcsysinfo.dll',
+            'system.png',
+            'hcperl.dll',
+            'hcpython3.dll',
+            'hcpython38.dll',
+            'NotoColorEmoji.ttf',
+            'OFL.txt'
+          )) {
+            $match = Get-ChildItem -Path $adminImage -Filter $requiredFile -File -Recurse | Select-Object -First 1
+            if ($null -eq $match) {
+              throw "Administrative image does not contain required normal-install file: $requiredFile"
+            }
+          }
+
+          foreach ($requiredPattern in @('_cffi_backend.cp314*.pyd', '_cffi_backend.cp38*.pyd')) {
+            $match = Get-ChildItem -Path $adminImage -Filter $requiredPattern -File -Recurse | Select-Object -First 1
+            if ($null -eq $match) {
+              throw "Administrative image does not contain required Python support file: $requiredPattern"
+            }
+          }
+
+          foreach ($requiredPythonFile in @('zoitechat.py', '_zoitechat.py', 'hexchat.py', 'xchat.py')) {
+            $match = Get-ChildItem -Path $adminImage -Filter $requiredPythonFile -File -Recurse |
+              Where-Object { $_.Directory.Name -eq 'python' } |
+              Select-Object -First 1
+            if ($null -eq $match) {
+              throw "Administrative image does not contain required Python bridge file: $requiredPythonFile"
+            }
+          }
+
+          foreach ($excludedFile in @(
+            'portable-mode',
+            'zoitechat-text.exe'
+          )) {
+            $match = Get-ChildItem -Path $adminImage -Filter $excludedFile -File -Recurse | Select-Object -First 1
+            if ($null -ne $match) {
+              throw "MSI incorrectly contains Inno custom/portable-only file: $excludedFile"
+            }
+          }
+
+      - name: Build MSIX
+        id: build_msix
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+
+          $rawVersion = (Get-Content VERSION -Raw).Trim()
+          if ($rawVersion -notmatch '^(\d+)\.(\d+)\.(\d+)') {
+            throw "VERSION '$rawVersion' does not begin with a Store-compatible major.minor.build version"
+          }
+
+          $versionParts = @(
+            [int]$Matches[1],
+            [int]$Matches[2],
+            [int]$Matches[3]
+          )
+          if ($versionParts[0] -eq 0) {
+            throw 'The Microsoft Store requires a non-zero major package version.'
+          }
+          foreach ($part in $versionParts) {
+            if ($part -lt 0 -or $part -gt 65535) {
+              throw "MSIX version component '$part' is outside the Store-supported 0-65535 range."
+            }
+          }
+
+          # Partner Center reserves the fourth field as 0. A -dev version
+          # is packaged as a valid 2.20.0.0, without changing VERSION.
+          $packageVersion = "$($versionParts[0]).$($versionParts[1]).$($versionParts[2]).0"
+          $safeVersion = $rawVersion -replace '[^0-9A-Za-z._-]', '-'
+          $sourceDir = (Resolve-Path "..\zoitechat-build\${{ matrix.platform }}\rel").Path
+          $outputPath = Join-Path $PWD "ZoiteChat-${safeVersion}_${{ matrix.arch }}.msix"
+
+          # Reserved ZoiteChat identity from the release branch. Adjust only
+          # if the Product identity page in Partner Center changes.
+          $identityName = 'deependtilde.ZoiteChat'
+          $publisher = 'CN=6C7766BB-6AC6-488B-A09E-E3F8E68E63E4'
+          $publisherDisplayName = 'deepend_tilde'
+          $artifactName = 'MSIX Store Package ${{ matrix.arch }}'
+
+          Write-Host "Building Store MSIX for identity: $identityName"
+
+          & .\win32\msix\build-msix.ps1 `
+            -SourceDir $sourceDir `
+            -OutputPath $outputPath `
+            -PackageVersion $packageVersion `
+            -IdentityName $identityName `
+            -Publisher $publisher `
+            -PublisherDisplayName $publisherDisplayName `
+            -SelfSign
+          if ($LASTEXITCODE -ne 0) {
+            throw 'MSIX build script failed'
+          }
+
+          if (-not (Test-Path $outputPath)) {
+            throw "Expected MSIX was not created: $outputPath"
+          }
+
+          "path=$outputPath" >> $env:GITHUB_OUTPUT
+          "filename=$(Split-Path $outputPath -Leaf)" >> $env:GITHUB_OUTPUT
+          "package_version=$packageVersion" >> $env:GITHUB_OUTPUT
+          "store_ready=true" >> $env:GITHUB_OUTPUT
+          "artifact_name=$artifactName" >> $env:GITHUB_OUTPUT
+
+      - name: Upload MSI Installer
+        id: upload_msi
+        uses: actions/upload-artifact@v6
+        with:
+          name: MSI Installer ${{ matrix.arch }}
+          path: ${{ steps.build_msi.outputs.path }}
+          if-no-files-found: error
+
+      - name: Attest MSI Installer (Artifact Attestation)
+        if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository }}
+        uses: actions/attest-build-provenance@v3
+        with:
+          subject-name: MSI Installer ${{ matrix.arch }}
+          subject-digest: sha256:${{ steps.upload_msi.outputs.artifact-digest }}
+
+      - name: Upload MSIX Package
+        id: upload_msix
+        uses: actions/upload-artifact@v6
+        with:
+          name: ${{ steps.build_msix.outputs.artifact_name }}
+          path: ${{ steps.build_msix.outputs.path }}
+          if-no-files-found: error
+
+      - name: Attest MSIX Package (Artifact Attestation)
+        if: ${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository }}
+        uses: actions/attest-build-provenance@v3
+        with:
+          subject-name: ${{ steps.build_msix.outputs.artifact_name }}
+          subject-digest: sha256:${{ steps.upload_msix.outputs.artifact-digest }}

docs/README.md

@@ -33,10 +33,53 @@ Example:
         that is not visually indented
 ```
 
-## Read the Docs theme skin
+## HTML theme
 
-The HTML output keeps the existing `basicstrap` Sphinx theme, then applies the
-ZoiteChat main-site skin from `_static/css/zoitechat-docs.css`.
+The `zoitechat` theme inherits Sphinx's built-in `basic` theme. It uses the
+same compact layout, blue navigation, and system fonts as zoitechat.org.
+Appearance starts in System mode on each page. Light and Dark are available
+for the current page; no cookies or browser storage are used.
 
-Brand navigation links are set in `conf.py` through `html_context`, and the
-header logo uses `_static/zoitechat-logo.svg`.
+The theme's templates are in `_theme/zoitechat/`. Its readable CSS and
+JavaScript are in `_static/css/zoitechat-docs.css` and
+`_static/js/zoitechat-docs.js`. No minification, JavaScript package manager,
+external fonts, or CDN assets are required.
+
+Navigation URLs, including `zoite_atlas_url`, are configured through
+`html_context` in `conf.py`. The logo
+is `_static/zoitechat-logo.svg`. Standard Sphinx search, indexes, source
+links, anchors, translations, and previous/next links remain available.
+The HTML output also works as locally installed documentation; project-site
+links only access the network when clicked.
+
+Build from the repository root:
+
+```sh
+sphinx-build -b html docs docs/_build/html
+```
+
+Use a clean output directory when switching themes, so stale Basicstrap
+assets from an earlier build are not included in a package.
+
+## Debian packaging
+
+The active theme does not use the bundled Basicstrap, Bootstrap, jQuery,
+jQuery Cookie, Font Awesome, or icon fonts. Its font stack includes DejaVu
+Sans and DejaVu Sans Mono; no font files are bundled by the theme.
+
+Packagers may exclude `docs/_theme/basicstrap/` from the source package.
+The default theme continues to build without that directory. No pre-minified
+third-party assets need to be added or rebuilt for this theme.
+
+Build with the distribution's `python3-sphinx`. After installing the HTML
+into the package staging directory, use `dh_sphinxdoc` (or `dh --with
+sphinxdoc`) to replace Sphinx's standard JavaScript files with system
+symlinks. Include `${sphinxdoc:Depends}` in the package dependencies and
+`${sphinxdoc:Built-Using}` where required for generated assets. The custom
+`zoitechat-docs.js` remains a small, readable project source file.
+
+A built-in theme is still selectable with `-D html_theme=classic` if a
+packager needs a different layout. The old RST content has existing build
+diagnostics; changing the theme does not suppress or alter them.
+
+Shared website chrome is in `_static/css/zoitechat-site.css`, copied from the main site. Keep that readable stylesheet in sync when changing the shared header, navigation, typography, or colours.

docs/_static/css/zoitechat-site.css

@@ -0,0 +1,526 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Shared chrome copied from ZoiteChat/site assets/css/site.css (1df996a). */
+:root {
+    color-scheme: light;
+    --bg: #fff;
+    --surface: #fff;
+    --chrome: #f1f2f3;
+    --chrome2: #e3e5e7;
+    --text: #25282c;
+    --muted: #58616b;
+    --line: #bdc3c9;
+    --soft-line: #dce0e4;
+    --blue: #215a9e;
+    --link: #174f92;
+    --selection: #e6effa;
+    --success: #236741;
+    --code: #f2f4f6;
+    --shadow: none;
+    --mono: Consolas,"Liberation Mono",monospace;
+}
+
+html[data-theme=dark] {
+    color-scheme: dark;
+    --bg: #111416;
+    --surface: #191c1f;
+    --chrome: #25292d;
+    --chrome2: #30353a;
+    --text: #eef0f2;
+    --muted: #b2bbc4;
+    --line: #50575e;
+    --soft-line: #353c43;
+    --blue: #2865a8;
+    --link: #8dc0ff;
+    --selection: #233951;
+    --success: #92d5ab;
+    --code: #111518;
+    --shadow: none;
+}
+
+* {
+    box-sizing: border-box;
+}
+
+body {
+    margin: 0;
+    background: var(--bg);
+    color: var(--text);
+    font: 15px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif;
+}
+
+a {
+    color: var(--link);
+    text-underline-offset: 3px;
+}
+
+a:hover {
+    text-decoration: underline;
+}
+
+button, input, select {
+    font: inherit;
+}
+
+button, summary {
+    cursor: pointer;
+}
+
+img {
+    display: block;
+    max-width: 100%;
+    height: auto;
+}
+
+button, a, input, select, summary {
+    touch-action: manipulation;
+}
+
+:focus-visible {
+    outline: 3px solid var(--link);
+    outline-offset: 3px;
+}
+
+[hidden] {
+    display: none!important;
+}
+
+.sr-only {
+    position: absolute;
+    width: 1px;
+    height: 1px;
+    padding: 0;
+    margin: -1px;
+    overflow: hidden;
+    clip-path: inset(50%);
+    white-space: nowrap;
+    border: 0;
+}
+
+.skip-link {
+    position: absolute;
+    left: 12px;
+    top: -100px;
+    z-index: 10;
+    padding: 10px;
+    background: var(--surface);
+}
+
+.skip-link:focus {
+    top: 12px;
+}
+
+.topbar {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 20px;
+    padding: 0 0 16px;
+    background: var(--surface);
+    border-bottom: 1px solid var(--line);
+    border: 0;
+}
+
+.brand {
+    display: flex;
+    gap: 12px;
+    align-items: center;
+    color: var(--text);
+    text-decoration: none;
+}
+
+.brand img {
+    width: 38px;
+    height: 42px;
+}
+
+.brand strong {
+    font-size: 28px;
+    letter-spacing: -.8px;
+    font-weight: 650;
+}
+
+.brand small {
+    display: block;
+    font-size: 12px;
+    color: var(--muted);
+    line-height: 1.2;
+}
+
+.appearance {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    font-size: 11px;
+    color: var(--muted);
+}
+
+select {
+    border: 1px solid var(--line);
+    border-radius: 3px;
+    padding: 5px 8px;
+    background: var(--surface);
+    color: var(--text);
+}
+
+.navigation {
+    display: flex;
+    align-items: center;
+    justify-content: flex-start;
+    gap: 12px;
+    background: var(--chrome);
+    border-bottom: 1px solid var(--line);
+    padding: 0;
+    border: 1px solid var(--line);
+    border-radius: 0;
+}
+
+.nav-links {
+    display: flex;
+    align-items: stretch;
+    flex-wrap: wrap;
+    gap: 0;
+}
+
+.nav-links>a, .nav-menu summary {
+    display: flex;
+    align-items: center;
+    min-height: 36px;
+    padding: 6px 15px;
+    color: var(--text);
+    font-size: 13px;
+    text-decoration: none;
+    border-bottom: 0;
+}
+
+.nav-links>a[aria-current=page] {
+    color: #fff;
+    border-bottom-color: var(--blue);
+    font-weight: 500;
+    background: var(--blue);
+}
+
+.nav-links>a:hover, .nav-menu summary:hover {
+    background: var(--selection);
+}
+
+.nav-menu {
+    position: relative;
+}
+
+.nav-menu summary {
+    list-style: none;
+}
+
+.nav-menu summary::after {
+    content: "⌄";
+    margin-left: 9px;
+}
+
+.nav-menu summary::-webkit-details-marker {
+    display: none;
+}
+
+.nav-menu-panel {
+    position: absolute;
+    right: 0;
+    top: 100%;
+    z-index: 5;
+    min-width: 280px;
+    background: var(--surface);
+    border: 1px solid var(--line);
+    box-shadow: var(--shadow);
+    padding: 5px;
+}
+
+.nav-menu-panel a {
+    display: block;
+    padding: 10px 12px;
+    text-decoration: none;
+}
+
+.nav-menu-panel a:hover {
+    background: var(--selection);
+}
+
+.nav-menu-panel span {
+    display: block;
+    font-size: 12px;
+    color: var(--muted);
+}
+
+.site-main {
+    min-height: 0;
+}
+
+h1, h2, h3, p {
+    margin-top: 0;
+}
+
+h1 {
+    font-size: clamp(30px,3.9vw,46px);
+    line-height: 1.16;
+    letter-spacing: -1.5px;
+    font-weight: 650;
+    margin-bottom: 20px;
+}
+
+h2 {
+    font-size: 20px;
+    line-height: 1.3;
+    letter-spacing: 0;
+    margin-bottom: 12px;
+}
+
+h3 {
+    font-size: 16px;
+    line-height: 1.4;
+}
+
+p {
+    color: var(--text);
+    font-size: 14px;
+    line-height: 1.7;
+    margin-bottom: 15px;
+}
+
+.site-footer {
+    padding: 17px 0;
+    background: var(--surface);
+    border-top: 1px solid var(--line);
+}
+
+.footer-grid {
+    display: flex;
+    align-items: start;
+    justify-content: space-between;
+    gap: 20px;
+}
+
+.footer-copy {
+    font-size: 11px;
+    max-width: 62ch;
+    margin: 0;
+    color: var(--muted);
+}
+
+.footer-links {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 5px 14px;
+    max-width: 400px;
+    font-size: 11px;
+}
+
+@media (max-width:1000px) {
+.navigation {
+        padding: 0 15px;
+    }
+
+.nav-links>a, .nav-menu summary {
+        padding: 8px 10px;
+    }
+}
+
+@media (max-width:650px) {
+.topbar {
+        padding: 13px 16px;
+        gap: 8px;
+    }
+
+.brand strong {
+        font-size: 20px;
+    }
+
+.brand small {
+        font-size: 10px;
+    }
+
+.brand img {
+        width: 28px;
+        height: 31px;
+    }
+
+.appearance {
+        gap: 5px;
+    }
+
+.appearance>span {
+        display: none;
+    }
+
+.appearance select {
+        font-size: 12px;
+        max-width: 98px;
+    }
+
+.navigation {
+        padding: 0 6px;
+    }
+
+.nav-links {
+        gap: 0;
+    }
+
+.nav-links>a, .nav-menu summary {
+        min-height: 44px;
+        padding: 8px;
+        font-size: 12px;
+    }
+
+h1 {
+        font-size: 34px;
+        letter-spacing: -1px;
+    }
+
+.footer-grid {
+        display: grid;
+        gap: 20px;
+    }
+
+.site-footer {
+        padding: 20px 17px;
+    }
+
+.nav-menu-panel {
+        position: fixed;
+        right: 10px;
+        left: 10px;
+        top: auto;
+        min-width: 0;
+    }
+}
+
+@media (prefers-reduced-motion:reduce) {
+* {
+        scroll-behavior: auto!important;
+    }
+}
+
+.appearance select {
+    font-size: 12px;
+    padding: 3px 7px;
+}
+
+.nav-links>a:hover {
+    background: var(--selection);
+    color: var(--link);
+}
+
+h1 {
+    font-size: 28px;
+    font-weight: 600;
+    letter-spacing: -.5px;
+    line-height: 1.3;
+    margin: 0 0 16px;
+    max-width: none;
+}
+
+@media (max-width:1100px) {
+.navigation {
+        padding: 0;
+    }
+}
+
+@media (max-width:800px) {
+.nav-links>a, .nav-menu summary {
+        padding: 6px 10px;
+    }
+}
+
+@media (max-width:600px) {
+.topbar {
+        padding: 0 0 14px;
+    }
+
+.brand strong {
+        font-size: 25px;
+    }
+
+.brand img {
+        width: 32px;
+        height: 36px;
+    }
+
+.nav-links>a, .nav-menu summary {
+        padding: 7px 9px;
+        min-height: 38px;
+        font-size: 12px;
+    }
+
+.footer-grid {
+        display: block;
+    }
+
+.footer-links {
+        margin-top: 10px;
+        max-width: none;
+    }
+
+.site-footer {
+        padding: 14px 0;
+    }
+
+h1 {
+        font-size: 26px;
+    }
+}
+
+@media (prefers-color-scheme: dark) {
+:root:not([data-theme]) {
+        color-scheme: dark;
+        --bg: #111416;
+        --surface: #191c1f;
+        --chrome: #25292d;
+        --chrome2: #30353a;
+        --text: #eef0f2;
+        --muted: #b2bbc4;
+        --line: #50575e;
+        --soft-line: #353c43;
+        --blue: #2865a8;
+        --link: #8dc0ff;
+        --selection: #233951;
+        --success: #92d5ab;
+        --code: #111518;
+        --shadow: none;
+    }
+}
+
+.site-header, .site-main, .site-footer {
+    width: min(1040px, calc(100% - 48px));
+    margin-inline: auto;
+}
+
+.site-header {
+    margin-top: 32px;
+}
+
+.site-main {
+    padding-block: 28px 20px;
+}
+
+.site-header .topbar {
+    padding: 0 0 16px;
+}
+
+.site-header .navigation {
+    padding: 0;
+}
+
+@media (max-width: 600px) {
+.site-header, .site-main, .site-footer {
+        width: calc(100% - 30px);
+    }
+
+.site-header {
+        margin-top: 18px;
+    }
+
+.site-main {
+        padding-top: 23px;
+    }
+}
+
+/* Match the browser's heading defaults used by the main site. */
+h2, h3 { font-weight: bold; }
+h2 { margin-top: .83em; }
+h3 { margin-block: 1em; }

docs/_static/js/zoitechat-docs.js

@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+(() => {
+    'use strict';
+
+    const initialise = () => {
+        const picker = document.getElementById('theme-picker');
+        const preference = window.matchMedia('(prefers-color-scheme: dark)');
+
+        if (picker instanceof HTMLSelectElement) {
+            const applyTheme = () => {
+                const dark = picker.value === 'dark'
+                    || (picker.value === 'system' && preference.matches);
+                document.documentElement.dataset.theme = dark ? 'dark' : 'light';
+                document.querySelectorAll('meta[name="theme-color"]').forEach((meta) => {
+                    meta.setAttribute('content', dark ? '#111416' : '#ffffff');
+                });
+            };
+
+            // Follow the OS on every visit, including browser back/forward navigation.
+            const resetTheme = () => {
+                picker.value = 'system';
+                applyTheme();
+            };
+            picker.addEventListener('change', applyTheme);
+            preference.addEventListener('change', applyTheme);
+            window.addEventListener('pageshow', resetTheme);
+            resetTheme();
+        }
+
+        const navigation = document.getElementById('docs-navigation');
+        const compact = window.matchMedia('(max-width: 760px)');
+        if (navigation instanceof HTMLDetailsElement) {
+            const fitNavigation = () => { navigation.open = !compact.matches; };
+            compact.addEventListener('change', fitNavigation);
+            fitNavigation();
+        }
+    };
+
+    if (document.readyState === 'loading') {
+        document.addEventListener('DOMContentLoaded', initialise, { once: true });
+    } else {
+        initialise();
+    }
+})();

docs/_theme/zoitechat/globaltoc.html

@@ -0,0 +1,5 @@
+{# SPDX-License-Identifier: GPL-2.0-or-later #}
+<nav class="global-toc" aria-label="{{ _('Documentation contents') }}">
+    <h2>{{ _('Contents') }}</h2>
+    {{ toctree(maxdepth=2, collapse=true, includehidden=true, titles_only=true) }}
+</nav>

docs/_theme/zoitechat/layout.html

@@ -0,0 +1,108 @@
+{# SPDX-License-Identifier: GPL-2.0-or-later #}
+{% extends "basic/layout.html" %}
+{% set docs_root = root_doc|default(master_doc) %}
+
+{% block extrahead %}
+    {{ super() }}
+    <meta name="theme-color" content="#ffffff" media="(prefers-color-scheme: light)">
+    <meta name="theme-color" content="#111416" media="(prefers-color-scheme: dark)">
+{% endblock %}
+
+{% block body_tag %}<body id="top">{% endblock %}
+
+{% block header %}
+    <a class="skip-link" href="#main-content">{{ _('Skip to content') }}</a>
+    <header class="site-header">
+        <div class="topbar">
+            <a class="brand" href="{{ pathto(docs_root)|e }}">
+                <img src="{{ logo_url|default(pathto('_static/zoitechat-logo.svg', 1), true)|e }}" alt="" width="38" height="42">
+                <strong>{{ project|e }}</strong>
+            </a>
+            <label class="appearance" for="theme-picker">
+                <span>{{ _('Appearance') }}</span>
+                <select id="theme-picker" aria-label="{{ _('Documentation appearance') }}">
+                    <option value="system" selected>{{ _('System') }}</option>
+                    <option value="light">{{ _('Light') }}</option>
+                    <option value="dark">{{ _('Dark') }}</option>
+                </select>
+            </label>
+        </div>
+        <div class="navigation">
+            <nav class="nav-links" aria-label="{{ _('Primary') }}">
+                <a href="{{ zoite_site_url|e }}">{{ _('Home') }}</a>
+                <a href="{{ zoite_download_url|e }}">{{ _('Downloads') }}</a>
+                <a href="{{ zoite_addons_url|e }}">{{ _('Addons') }}</a>
+                <a href="{{ zoite_announcements_url|e }}">{{ _('Announcements') }}</a>
+                <a href="{{ pathto(docs_root)|e }}" aria-current="page">{{ _('Documentation') }}</a>
+                <a href="{{ zoite_atlas_url|e }}">{{ _('Atlas') }}</a>
+                <a href="{{ zoite_github_url|e }}" target="_blank" rel="noopener">{{ _('GitHub') }}</a>
+                <details class="nav-menu">
+                    <summary>{{ _('IRC support') }}</summary>
+                    <div class="nav-menu-panel" aria-label="{{ _('IRC support channels') }}">
+                        <a href="{{ zoite_irc_url|e }}" target="_blank" rel="noopener"><strong>{{ _('Zoite IRC') }}</strong><span>{{ _('Official support') }} · #zoitechat</span></a>
+                        <a href="{{ libera_irc_url|e }}" target="_blank" rel="noopener"><strong>{{ _('Libera.Chat') }}</strong><span>{{ _('Secondary support') }} · #zoitechat</span></a>
+                    </div>
+                </details>
+            </nav>
+        </div>
+    </header>
+{% endblock %}
+
+{% block relbar1 %}{% endblock %}
+{% block relbar2 %}{% endblock %}
+
+{% block content %}
+    <div class="docs-layout{% if not render_sidebar %} no-sidebar{% endif %}">
+        {% if render_sidebar %}
+            <aside class="docs-sidebar" aria-label="{{ _('Documentation navigation') }}">
+                <details class="docs-navigation" id="docs-navigation" open>
+                    <summary>{{ _('Documentation') }}</summary>
+                    <div class="sidebar-content">
+                        {% for sidebartemplate in sidebars %}
+                            {% include sidebartemplate %}
+                        {% endfor %}
+                    </div>
+                </details>
+            </aside>
+        {% endif %}
+        <main class="docs-content" id="main-content" tabindex="-1">
+            <div class="docs-location">
+                <nav aria-label="{{ _('Breadcrumbs') }}">
+                    <a href="{{ pathto(docs_root)|e }}">{{ _('Documentation') }}</a>
+                    {% for parent in parents %}
+                        <span aria-hidden="true">/</span> <a href="{{ parent.link|e }}">{{ parent.title }}</a>
+                    {% endfor %}
+                    {% if pagename != docs_root %}<span aria-hidden="true">/</span> <span>{{ title|striptags|e }}</span>{% endif %}
+                </nav>
+                <span class="docs-version">{{ release|e }}</span>
+            </div>
+
+            {% block body %}{% endblock %}
+            {% if prev or next %}
+                <nav class="page-relations" aria-label="{{ _('Related pages') }}">
+                    <div>
+                        {% if prev %}<small>{{ _('Previous') }}</small><a href="{{ prev.link|e }}" rel="prev">{{ prev.title }}</a>{% endif %}
+                    </div>
+                    <div>
+                        {% if next %}<small>{{ _('Next') }}</small><a href="{{ next.link|e }}" rel="next">{{ next.title }}</a>{% endif %}
+                    </div>
+                </nav>
+            {% endif %}
+        </main>
+    </div>
+{% endblock %}
+
+{% block footer %}
+    <footer class="site-footer">
+        <div class="footer-grid">
+            <p class="footer-copy">{{ project|e }} {{ _('documentation') }} · {{ release|e }}</p>
+            <nav class="footer-links" aria-label="{{ _('Footer navigation') }}">
+                <a href="{{ pathto(docs_root)|e }}">{{ _('Contents') }}</a>
+                <a href="{{ zoite_atlas_url|e }}">{{ _('Atlas') }}</a>
+                {% if hasdoc('search') %}<a href="{{ pathto('search')|e }}">{{ _('Search') }}</a>{% endif %}
+                {% if hasdoc('genindex') %}<a href="{{ pathto('genindex')|e }}">{{ _('Index') }}</a>{% endif %}
+                <a href="#top">{{ _('Back to top') }}</a>
+            </nav>
+        </div>
+    </footer>
+{% endblock %}

docs/_theme/zoitechat/localtoc.html

@@ -0,0 +1,7 @@
+{# SPDX-License-Identifier: GPL-2.0-or-later #}
+{% if display_toc %}
+    <nav class="local-toc" aria-label="{{ _('On this page') }}">
+        <h2>{{ _('On this page') }}</h2>
+        {{ toc }}
+    </nav>
+{% endif %}

docs/_theme/zoitechat/searchbox.html

@@ -0,0 +1,10 @@
+{# SPDX-License-Identifier: GPL-2.0-or-later #}
+{% if pagename != "search" %}
+    <form class="docs-search" action="{{ pathto('search')|e }}" method="get" role="search">
+        <label for="docs-search-input">{{ _('Search documentation') }}</label>
+        <div class="search-inputs">
+            <input id="docs-search-input" type="search" name="q" placeholder="{{ _('Search documentation') }}" autocomplete="off" spellcheck="false">
+            <button type="submit">{{ _('Search') }}</button>
+        </div>
+    </form>
+{% endif %}

docs/_theme/zoitechat/theme.conf

@@ -0,0 +1,7 @@
+[theme]
+inherit = basic
+stylesheet = basic.css
+pygments_style = sphinx
+sidebars = searchbox.html, globaltoc.html, localtoc.html, sourcelink.html
+
+[options]

docs/conf.py

@@ -99,7 +99,7 @@ trim_footnote_reference_space = True
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'basicstrap'
+html_theme = 'zoitechat'
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
@@ -127,13 +127,16 @@ html_context = {
     'zoite_site_url': 'https://zoitechat.org/',
     'zoite_download_url': 'https://zoitechat.org/download.php',
     'zoite_addons_url': 'https://zoitechat.org/addons.php',
+    'zoite_announcements_url': 'https://zoitechat.org/announcements.php',
+    'zoite_github_url': 'https://github.com/ZoiteChat/zoitechat',
+    'zoite_atlas_url': 'https://atlas.zoitechat.org/',
     'zoite_irc_url': 'https://zoite.net/webchat/?join=%23zoitechat',
     'libera_irc_url': 'https://web.libera.chat/#zoitechat',
 }
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
-html_logo = 'zoitechat-logo.svg'
+html_logo = '_static/zoitechat-logo.svg'
 
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
@@ -145,8 +148,9 @@ html_favicon = '_static/favicon.ico'
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
 
-# Main-site visual skin for Read the Docs/Sphinx HTML output.
-html_css_files = ['css/zoitechat-docs.css']
+# Local, readable assets shared by hosted and offline HTML documentation.
+html_css_files = ['css/zoitechat-docs.css', 'css/zoitechat-site.css']
+html_js_files = ['js/zoitechat-docs.js']
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.

src/common/cfgfiles.c

@@ -590,6 +590,7 @@ const struct prefs vars[] =
 	{"gui_gtk3_theme", P_OFFSET (hex_gui_gtk3_theme), TYPE_STR},
 	{"text_indent", P_OFFINT (hex_text_indent), TYPE_BOOL},
 	{"text_max_indent", P_OFFINT (hex_text_max_indent), TYPE_INT},
+	{"text_wrap_align", P_OFFINT (hex_text_wrap_align), TYPE_INT},
 	{"text_max_lines", P_OFFINT (hex_text_max_lines), TYPE_INT},
 	{"text_replay", P_OFFINT (hex_text_replay), TYPE_BOOL},
 	{"text_search_case_match", P_OFFINT (hex_text_search_case_match), TYPE_BOOL},
@@ -881,6 +882,7 @@ load_default_config(void)
 	prefs.hex_net_reconnect_delay = 10;
 	prefs.hex_notify_timeout = 15;
 	prefs.hex_text_max_indent = 256;
+	prefs.hex_text_wrap_align = 0;
 	prefs.hex_text_max_lines = 5000;
 	prefs.hex_url_grabber_limit = 100; 		/* 0 means unlimited */
 

src/common/common.vcxproj

@@ -43,6 +43,7 @@
     <ClInclude Include="typedef.h" />
     <ClInclude Include="url.h" />
     <ClInclude Include="userlist.h" />
+    <ClInclude Include="hexcolor.h" />
     <ClInclude Include="util.h" />
     <ClInclude Include="zoitechat-plugin.h" />
     <ClInclude Include="zoitechat.h" />
@@ -79,6 +80,7 @@
     <ClCompile Include="tree.c" />
     <ClCompile Include="url.c" />
     <ClCompile Include="userlist.c" />
+    <ClCompile Include="hexcolor.c" />
     <ClCompile Include="util.c" />
     <ClCompile Include="zoitechat.c" />
     <ClCompile Include="theme-service.c" />

src/common/common.vcxproj.filters

@@ -98,6 +98,9 @@
     <ClInclude Include="userlist.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="hexcolor.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="util.h">
       <Filter>Header Files</Filter>
     </ClInclude>
@@ -202,6 +205,9 @@
     <ClCompile Include="userlist.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="hexcolor.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="util.c">
       <Filter>Source Files</Filter>
     </ClCompile>

src/common/hexcolor.c

@@ -0,0 +1,42 @@
+/* ZoiteChat
+ * Parsing of \004 (hex color) formatting codes: RRGGBB[,RRGGBB].
+ * Kept free of other application dependencies so the xtext widget tests can
+ * compile it on its own.
+ * Distributed under GPL-2.0-or-later; see COPYING. */
+
+#include "hexcolor.h"
+
+static int
+hexcolor_component (const char *s, int avail, guint32 *rgb)
+{
+	int i;
+	guint32 value = 0;
+
+	if (avail < 6)
+		return FALSE;
+	for (i = 0; i < 6; i++)
+	{
+		if (!g_ascii_isxdigit (s[i]))
+			return FALSE;
+		value = (value << 4) | g_ascii_xdigit_value (s[i]);
+	}
+	if (rgb)
+		*rgb = value;
+	return TRUE;
+}
+
+int
+hexcolor_parse (const char *s, int avail, guint32 *fg, guint32 *bg, int *has_bg)
+{
+	if (has_bg)
+		*has_bg = FALSE;
+	if (!hexcolor_component (s, avail, fg))
+		return 0;
+	if (avail >= 7 && s[6] == ',' && hexcolor_component (s + 7, avail - 7, bg))
+	{
+		if (has_bg)
+			*has_bg = TRUE;
+		return 13;
+	}
+	return 6;
+}

src/common/hexcolor.h

@@ -0,0 +1,16 @@
+/* ZoiteChat
+ * Parsing of \004 (hex color) formatting codes: RRGGBB[,RRGGBB].
+ * See https://modern.ircdocs.horse/formatting
+ * Distributed under GPL-2.0-or-later; see COPYING. */
+
+#ifndef ZOITECHAT_HEXCOLOR_H
+#define ZOITECHAT_HEXCOLOR_H
+
+#include <glib.h>
+
+/* Parses the parameters following a \004 byte. Returns the number of bytes
+ * consumed (6 or 13), or 0 if no valid RRGGBB follows. fg, bg and has_bg
+ * may be NULL. */
+int hexcolor_parse (const char *s, int avail, guint32 *fg, guint32 *bg, int *has_bg);
+
+#endif

src/common/inbound.c

@@ -1880,38 +1880,51 @@ inbound_toggle_caps (server *serv, const char *extensions_str, gboolean enable)
 	char **extensions;
 	gsize i;
 
+	if (!extensions_str)
+		return;
+
 	extensions = g_strsplit (extensions_str, " ", 0);
 
 	for (i = 0; extensions[i]; i++)
 	{
 		const char *extension = extensions[i];
+		gboolean cap_enable = enable;
+
+		/* ACK prefixes disabled capabilities with '-', unlike CAP DEL. */
+		if (*extension == '-')
+		{
+			cap_enable = FALSE;
+			extension++;
+		}
 
 		if (!strcmp (extension, "solanum.chat/identify-msg"))
-			serv->have_idmsg = enable;
+			serv->have_idmsg = cap_enable;
 		else if (!strcmp (extension, "multi-prefix"))
-			serv->have_namesx = enable;
+			serv->have_namesx = cap_enable;
 		else if (!strcmp (extension, "account-notify"))
-			serv->have_accnotify = enable;
+			serv->have_accnotify = cap_enable;
 		else if (!strcmp (extension, "extended-join"))
-			serv->have_extjoin = enable;
+			serv->have_extjoin = cap_enable;
 		else if (!strcmp (extension, "userhost-in-names"))
-			serv->have_uhnames = enable;
+			serv->have_uhnames = cap_enable;
 		else if (!strcmp (extension, "server-time")
 				|| !strcmp (extension, "znc.in/server-time")
 				|| !strcmp (extension, "znc.in/server-time-iso"))
-			serv->have_server_time = enable;
+			serv->have_server_time = cap_enable;
 		else if (!strcmp (extension, "away-notify"))
-			serv->have_awaynotify = enable;
+			serv->have_awaynotify = cap_enable;
 		else if (!strcmp (extension, "account-tag"))
-			serv->have_account_tag = enable;
+			serv->have_account_tag = cap_enable;
 		else if (!strcmp (extension, "message-tags"))
-			serv->have_message_tags = enable;
+			serv->have_message_tags = cap_enable;
 		else if (!strcmp (extension, "echo-message"))
-			serv->have_echo_message = enable;
+			serv->have_echo_message = cap_enable;
 		else if (!strcmp (extension, "sasl"))
 		{
-			serv->have_sasl = enable;
-			if (enable)
+			gboolean start_auth = cap_enable && !serv->have_sasl;
+
+			serv->have_sasl = cap_enable;
+			if (start_auth)
 			{
 #ifdef USE_OPENSSL
 				if (serv->loginmethod == LOGIN_SASLEXTERNAL)
@@ -1962,10 +1975,15 @@ inbound_cap_ack (server *serv, char *nick, char *extensions,
 	inbound_toggle_caps (serv, extensions, TRUE);
 }
 
+static void inbound_request_new_caps (server *serv, const char *extensions_str,
+									 const message_tags_data *tags_data);
+
 void
 inbound_cap_new (server *serv, char *nick, char *extensions,
 					 const message_tags_data *tags_data)
 {
+	gboolean sts_upgrade_triggered = FALSE;
+
 	if (extensions)
 	{
 		char **tokens = g_strsplit (extensions, " ", 0);
@@ -1977,7 +1995,7 @@ inbound_cap_new (server *serv, char *nick, char *extensions,
 
 			if (!g_strcmp0 (parts[0], "sts") && parts[1] && parts[1][0])
 			{
-				sts_handle_capability (serv, parts[1]);
+				sts_upgrade_triggered |= sts_handle_capability (serv, parts[1]);
 			}
 
 			g_strfreev (parts);
@@ -1986,38 +2004,22 @@ inbound_cap_new (server *serv, char *nick, char *extensions,
 		g_strfreev (tokens);
 	}
 
-	EMIT_SIGNAL_TIMESTAMP (XP_TE_CAPACK, serv->server_session, nick, extensions,
+	EMIT_SIGNAL_TIMESTAMP (XP_TE_CAPLIST, serv->server_session, nick, extensions,
 								  NULL, NULL, 0, tags_data->timestamp);
 
-	inbound_toggle_caps (serv, extensions, TRUE);
+	/* NEW advertises availability; only ACK confirms an enabled capability. */
+	if (!sts_upgrade_triggered)
+		inbound_request_new_caps (serv, extensions, tags_data);
 }
 
 void
 inbound_cap_del (server *serv, char *nick, char *extensions,
 					 const message_tags_data *tags_data)
 {
-	if (extensions)
-	{
-		char **tokens = g_strsplit (extensions, " ", 0);
-		int i;
-
-		for (i = 0; tokens[i]; i++)
-		{
-			if (!g_strcmp0 (tokens[i], "sts") ||
-				g_str_has_prefix (tokens[i], "sts="))
-			{
-				/* STS cannot be disabled via CAP DEL. */
-				g_strfreev (tokens);
-				return;
-			}
-		}
-
-		g_strfreev (tokens);
-	}
-
 	EMIT_SIGNAL_TIMESTAMP (XP_TE_CAPDEL, serv->server_session, nick, extensions,
 								  NULL, NULL, 0, tags_data->timestamp);
 
+	/* STS has no toggle, but must not prevent other capabilities being removed. */
 	inbound_toggle_caps (serv, extensions, FALSE);
 }
 
@@ -2053,6 +2055,44 @@ static const char * const supported_caps[] = {
 	"solanum.chat/identify-msg",
 };
 
+static void
+inbound_request_new_caps (server *serv, const char *extensions_str,
+							 const message_tags_data *tags_data)
+{
+	char **extensions;
+	gsize i, x;
+
+	if (!extensions_str)
+		return;
+
+	extensions = g_strsplit (extensions_str, " ", 0);
+	for (i = 0; extensions[i]; i++)
+	{
+		char *value = strchr (extensions[i], '=');
+
+		if (value)
+			*value = '\0';
+	}
+
+	/* Request each supported capability once, keeping every IRC line bounded.
+	 * SASL is negotiated during login and is not in supported_caps. */
+	for (x = 0; x < G_N_ELEMENTS (supported_caps); x++)
+	{
+		for (i = 0; extensions[i]; i++)
+		{
+			if (!strcmp (extensions[i], supported_caps[x]))
+			{
+				EMIT_SIGNAL_TIMESTAMP (XP_TE_CAPREQ, serv->server_session,
+										  extensions[i], NULL, NULL, NULL, 0,
+										  tags_data->timestamp);
+				tcp_sendf (serv, "CAP REQ :%s\r\n", extensions[i]);
+				break;
+			}
+		}
+	}
+	g_strfreev (extensions);
+}
+
 static int
 get_supported_mech (server *serv, const char *list)
 {

src/common/meson.build

@@ -25,6 +25,7 @@ common_sources = [
   'tree.c',
   'url.c',
   'userlist.c',
+  'hexcolor.c',
   'util.c'
 ]
 
@@ -197,3 +198,18 @@ test('Emoji Data Tests', emoji_data_tests,
   protocol: 'tap',
   timeout: 120,
 )
+
+hexcolor_tests = executable('hexcolor_tests',
+  [
+    'tests/test-hexcolor.c',
+    'hexcolor.c',
+    'util.c',
+  ],
+  include_directories: [config_h_include, include_directories('.')],
+  dependencies: [libgio_dep] + (libssl_dep.found() ? [libssl_dep] : []),
+)
+
+test('Hex Color Tests', hexcolor_tests,
+  protocol: 'tap',
+  timeout: 120,
+)

src/common/ssl.c

@@ -155,7 +155,7 @@ _SSL_get_cert_info (struct cert_info *cert_info, SSL * ssl)
 {
 	X509 *peer_cert;
 	const X509_PUBKEY *key;
-	X509_ALGOR *algor = NULL;
+	ASN1_OBJECT *obj = NULL;
 	EVP_PKEY *peer_pkey;
 	char notBefore[64];
 	char notAfter[64];
@@ -174,10 +174,10 @@ _SSL_get_cert_info (struct cert_info *cert_info, SSL * ssl)
 	broke_oneline (cert_info->issuer, cert_info->issuer_word);
 
 	key = X509_get_X509_PUBKEY(peer_cert);
-	if (!X509_PUBKEY_get0_param(NULL, NULL, 0, &algor, key))
+	if (!X509_PUBKEY_get0_param(&obj, NULL, NULL, NULL, key))
 		return 1;
 
-	alg = OBJ_obj2nid (algor->algorithm);
+	alg = OBJ_obj2nid (obj);
 #ifndef HAVE_X509_GET_SIGNATURE_NID
 	sign_alg = OBJ_obj2nid (peer_cert->sig_alg->algorithm);
 #else

src/common/tests/test-hexcolor.c

@@ -0,0 +1,117 @@
+/* ZoiteChat
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <string.h>
+
+#include <glib.h>
+
+#include "../hexcolor.h"
+#include "../util.h"
+
+static void
+test_parse_foreground (void)
+{
+	guint32 fg = 0, bg = 0xDEAD;
+	int has_bg = TRUE;
+
+	g_assert_cmpint (hexcolor_parse ("FF8800text", 10, &fg, &bg, &has_bg), ==, 6);
+	g_assert_cmphex (fg, ==, 0xFF8800);
+	g_assert_false (has_bg);
+	g_assert_cmphex (bg, ==, 0xDEAD);
+}
+
+static void
+test_parse_foreground_and_background (void)
+{
+	guint32 fg = 0, bg = 0;
+	int has_bg = FALSE;
+
+	g_assert_cmpint (hexcolor_parse ("112233,a0b0c0x", 14, &fg, &bg, &has_bg), ==, 13);
+	g_assert_cmphex (fg, ==, 0x112233);
+	g_assert_cmphex (bg, ==, 0xA0B0C0);
+	g_assert_true (has_bg);
+}
+
+static void
+test_parse_bad_background_keeps_foreground (void)
+{
+	guint32 fg = 0;
+	int has_bg = TRUE;
+
+	/* ",12" is plain text after a valid foreground, not a background */
+	g_assert_cmpint (hexcolor_parse ("112233,12 hi", 12, &fg, NULL, &has_bg), ==, 6);
+	g_assert_cmphex (fg, ==, 0x112233);
+	g_assert_false (has_bg);
+}
+
+static void
+test_parse_bare (void)
+{
+	/* a bare \004 resets colors, like a bare \003 */
+	g_assert_cmpint (hexcolor_parse (" text", 5, NULL, NULL, NULL), ==, 0);
+	g_assert_cmpint (hexcolor_parse ("12345G", 6, NULL, NULL, NULL), ==, 0);
+	g_assert_cmpint (hexcolor_parse ("", 0, NULL, NULL, NULL), ==, 0);
+}
+
+static void
+test_parse_respects_length (void)
+{
+	g_assert_cmpint (hexcolor_parse ("FF8800", 5, NULL, NULL, NULL), ==, 0);
+	g_assert_cmpint (hexcolor_parse ("FF8800,112233", 12, NULL, NULL, NULL), ==, 6);
+}
+
+static void
+assert_stripped (const char *in, int flags, const char *expected)
+{
+	char out[128];
+
+	strip_color2 (in, -1, out, flags);
+	g_assert_cmpstr (out, ==, expected);
+}
+
+static void
+test_strip (void)
+{
+	assert_stripped ("\004FF8800alice\017: hi", STRIP_ALL, "alice: hi");
+	assert_stripped ("\004112233,445566bg", STRIP_ALL, "bg");
+	assert_stripped ("a\004 b", STRIP_ALL, "a b");
+	assert_stripped ("\004FF8800\00312x", STRIP_ALL, "x");
+	/* a trailing code with too few digits leaves the rest as text */
+	assert_stripped ("x\004FF88", STRIP_ALL, "xFF88");
+}
+
+static void
+test_strip_keeps_hex_without_strip_color (void)
+{
+	assert_stripped ("\004FF8800red\002", STRIP_ATTRIB, "\004FF8800red");
+}
+
+int
+main (int argc, char *argv[])
+{
+	g_test_init (&argc, &argv, NULL);
+
+	g_test_add_func ("/hexcolor/parse/foreground", test_parse_foreground);
+	g_test_add_func ("/hexcolor/parse/foreground-and-background", test_parse_foreground_and_background);
+	g_test_add_func ("/hexcolor/parse/bad-background", test_parse_bad_background_keeps_foreground);
+	g_test_add_func ("/hexcolor/parse/bare", test_parse_bare);
+	g_test_add_func ("/hexcolor/parse/length", test_parse_respects_length);
+	g_test_add_func ("/hexcolor/strip/all", test_strip);
+	g_test_add_func ("/hexcolor/strip/attrib-only", test_strip_keeps_hex_without_strip_color);
+
+	return g_test_run ();
+}

src/common/util.c

@@ -47,6 +47,7 @@
 #include "zoitechatc.h"
 #include <ctype.h>
 #include "util.h"
+#include "hexcolor.h"
 
 #if defined (__FreeBSD__) || defined (__APPLE__)
 #include <sys/sysctl.h>
@@ -330,6 +331,14 @@ strip_color2 (const char *src, int len, char *dst, int flags)
 				if (!(flags & STRIP_COLOR)) goto pass_char;
 				rcol = 2;
 				break;
+			case '\004':			  /*ATTR_HEXCOLOR: */
+				if (!(flags & STRIP_COLOR)) goto pass_char;
+				{
+					int skip = hexcolor_parse (src + 1, len, NULL, NULL, NULL);
+					src += skip;
+					len -= skip;
+				}
+				break;
 			case HIDDEN_CHAR:	/* CL: invisible text (for event formats only) */	/* this takes care of the topic */
 				if (!(flags & STRIP_HIDDEN)) goto pass_char;
 				break;

src/common/zoitechat.h

@@ -306,6 +306,7 @@ struct zoitechatprefs
 	int hex_net_reconnect_delay;
 	int hex_notify_timeout;
 	int hex_text_max_indent;
+	int hex_text_wrap_align;
 	int hex_text_max_lines;
 	int hex_url_grabber_limit;
 

src/fe-gtk/meson.build

@@ -278,3 +278,10 @@ test('Emoji Font Tests', emoji_font_tests,
   protocol: 'tap',
   timeout: 120,
 )
+
+xtext_tests = executable('xtext_tests',
+  ['tests/test-xtext.c', '../common/hexcolor.c'],
+  include_directories: [config_h_include],
+  dependencies: [gtk_dep],
+)
+test('XText Tests', xtext_tests, protocol: 'tap', timeout: 120)

src/fe-gtk/setup.c

@@ -59,6 +59,8 @@ static struct zoitechatprefs setup_prefs;
 static GtkWidget *cancel_button;
 static GtkWidget *font_dialog = NULL;
 static GtkWidget *setup_topicbar_multiline_toggle = NULL;
+static GtkWidget *setup_wrap_align_label = NULL;
+static GtkWidget *setup_wrap_align_combo = NULL;
 
 enum
 {
@@ -157,6 +159,14 @@ static const char *const langsmenu[] =
 };
 #endif
 
+static const char *const wrapalignmenu[] =
+{
+        N_("Start of line (default)"),
+        N_("Prefix (nick name)"),
+        N_("Message"),
+        NULL
+};
+
 static const setting appearance_settings[] =
 {
         {ST_HEADER,     N_("General"),0,0,0},
@@ -172,6 +182,7 @@ static const setting appearance_settings[] =
         {ST_TOGGLR, N_("Indent nick names"), P_OFFINTNL(hex_text_indent), N_("Make nick names right-justified"),0,0},
         {ST_TOGGLE, N_ ("Show marker line"), P_OFFINTNL (hex_text_show_marker), N_ ("Insert a red line after the last read text."), 0, 0},
         {ST_TOGGLE, N_("Keep search position when closing"), P_OFFINTNL(hex_text_search_keep_position), 0, 0, 0},
+        {ST_MENU,   N_("Align wrapped lines under:"), P_OFFINTNL(hex_text_wrap_align), N_("Where wrapped lines start when nick names are not indented"), wrapalignmenu, 0},
 
         {ST_HEADER,     N_("Timestamps"),0,0,0},
         {ST_TOGGLE, N_("Enable timestamps"), P_OFFINTNL(hex_stamp_text),0,0,1},
@@ -857,6 +868,20 @@ setup_topicbar_inline_toggled_cb (GtkToggleButton *but, gpointer userdata)
                         !gtk_toggle_button_get_active (but));
 }
 
+static void
+setup_text_indent_toggled_cb (GtkToggleButton *but, gpointer userdata)
+{
+        gboolean sens = !gtk_toggle_button_get_active (but);
+
+        (void) userdata;
+
+        /* wrapped line alignment only applies without nick indentation */
+        if (setup_wrap_align_label)
+                gtk_widget_set_sensitive (setup_wrap_align_label, sens);
+        if (setup_wrap_align_combo)
+                gtk_widget_set_sensitive (setup_wrap_align_combo, sens);
+}
+
 static void
 setup_create_toggleR (GtkWidget *tab, int row, const setting *set)
 {
@@ -867,6 +892,9 @@ setup_create_toggleR (GtkWidget *tab, int row, const setting *set)
                                                                                         setup_get_int (&setup_prefs, set));
         g_signal_connect (G_OBJECT (wid), "toggled",
                                                         G_CALLBACK (setup_toggle_cb), (gpointer)set);
+        if (set->offset == STRUCT_OFFSET_INT (struct zoitechatprefs, hex_text_indent))
+                g_signal_connect (G_OBJECT (wid), "toggled",
+                                                        G_CALLBACK (setup_text_indent_toggled_cb), NULL);
         if (set->tooltip)
                 gtk_widget_set_tooltip_text (wid, _(set->tooltip));
         setup_table_attach (tab, wid, 4, 5, row, row + 1, TRUE, FALSE,
@@ -1279,6 +1307,16 @@ setup_create_menu (GtkWidget *table, int row, const setting *set)
 
         setup_table_attach (table, cbox, 3, 6, row, row + 1, TRUE, FALSE,
                             SETUP_ALIGN_FILL, SETUP_ALIGN_FILL, 0, 0);
+
+        if (set->offset == STRUCT_OFFSET_INT (struct zoitechatprefs, hex_text_wrap_align))
+        {
+                setup_wrap_align_label = wid;
+                setup_wrap_align_combo = cbox;
+                g_object_add_weak_pointer (G_OBJECT (wid), (gpointer *)&setup_wrap_align_label);
+                g_object_add_weak_pointer (G_OBJECT (cbox), (gpointer *)&setup_wrap_align_combo);
+                gtk_widget_set_sensitive (wid, !setup_prefs.hex_text_indent);
+                gtk_widget_set_sensitive (cbox, !setup_prefs.hex_text_indent);
+        }
 }
 
 static void

src/fe-gtk/tests/test-xtext.c

@@ -0,0 +1,597 @@
+/* XText regression tests. Distributed under GPL-2.0-or-later; see COPYING.
+ * Include the implementation to check layout/selection invariants without
+ * adding test-only symbols to the widget's public API. Application services
+ * are stubbed; GTK, Pango, Cairo and the widget itself are exercised normally. */
+#include "../xtext.c"
+#include <glib/gstdio.h>
+
+struct zoitechatprefs prefs;
+
+void emoji_font_apply (GtkWidget *widget) { }
+int url_last (int *start, int *end) { return 0; }
+gsize strftime_utf8 (char *dest, gsize size, const char *format, time_t stamp)
+{
+	return strftime (dest, size, format, localtime (&stamp));
+}
+int xtext_get_stamp_str (time_t stamp, char **out)
+{
+	*out = g_strdup ("[12:34] ");
+	return strlen (*out);
+}
+void theme_get_xtext_colors_for_widget (GtkWidget *widget, XTextColor *colors, size_t len)
+{
+	size_t i;
+	for (i = 0; i < len; i++)
+	{
+		colors[i].red = colors[i].green = colors[i].blue = 0.0;
+		colors[i].alpha = 1.0;
+	}
+	colors[XTEXT_FG].red = colors[XTEXT_FG].green = colors[XTEXT_FG].blue = 1.0;
+	colors[XTEXT_MARK_BG].blue = 1.0;
+	colors[XTEXT_MARK_FG] = colors[XTEXT_FG];
+	colors[XTEXT_MARKER].red = 1.0;
+}
+
+typedef struct { GtkWidget *window; GtkXText *xtext; } Fixture;
+
+static void drain_events (void)
+{
+	while (g_main_context_iteration (NULL, FALSE)) { }
+}
+
+static void fixture_setup (Fixture *f, gconstpointer data)
+{
+	XTextColor colors[XTEXT_COLS];
+	GtkWidget *scrolled = gtk_scrolled_window_new (NULL, NULL);
+	theme_get_xtext_colors_for_widget (NULL, colors, G_N_ELEMENTS (colors));
+	f->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+	gtk_window_set_default_size (GTK_WINDOW (f->window), 640, 360);
+	f->xtext = GTK_XTEXT (gtk_xtext_new (colors, TRUE));
+	g_object_ref (f->xtext);
+	gtk_container_add (GTK_CONTAINER (scrolled), GTK_WIDGET (f->xtext));
+	gtk_container_add (GTK_CONTAINER (f->window), scrolled);
+	g_assert_true (gtk_xtext_set_font (f->xtext, "monospace 12"));
+	gtk_widget_show_all (f->window);
+	drain_events ();
+}
+
+static void fixture_teardown (Fixture *f, gconstpointer data)
+{
+	gtk_widget_destroy (f->window);
+	g_object_unref (f->xtext);
+	drain_events ();
+	g_assert_null (image_pending_list);
+}
+
+static void append (Fixture *f, const char *text)
+{
+	gtk_xtext_append (f->xtext->buffer, (guchar *)text, -1, 1234);
+}
+
+static cairo_surface_t *snapshot (Fixture *f, gboolean partial)
+{
+	GtkWidget *widget = GTK_WIDGET (f->xtext);
+	int width = gtk_widget_get_allocated_width (widget);
+	int height = gtk_widget_get_allocated_height (widget);
+	cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
+	cairo_t *cr = cairo_create (surface);
+	if (partial)
+	{
+		cairo_rectangle (cr, 0, f->xtext->fontsize, width, height - f->xtext->fontsize);
+		cairo_clip (cr);
+	}
+	gtk_widget_draw (widget, cr);
+	g_assert_cmpint (cairo_status (cr), ==, CAIRO_STATUS_SUCCESS);
+	cairo_destroy (cr);
+	cairo_surface_flush (surface);
+	return surface;
+}
+
+static void test_empty_and_bounded_append (Fixture *f, gconstpointer data)
+{
+	const guchar bytes[] = {'a', 'b', 'c'}; /* deliberately no terminating NUL */
+	append (f, "");
+	g_assert_cmpstr ((char *)f->xtext->buffer->text_last->str, ==, "");
+	g_assert_cmpint (f->xtext->buffer->text_last->subline_count, ==, 1);
+	append (f, "\n");
+	g_assert_cmpint (f->xtext->buffer->text_last->str_len, ==, 0);
+	gtk_xtext_append (f->xtext->buffer, (guchar *)bytes, sizeof (bytes), 1234);
+	g_assert_cmpstr ((char *)f->xtext->buffer->text_last->str, ==, "abc");
+	gtk_xtext_append_indent (f->xtext->buffer, (guchar *)"", 0, (guchar *)"", 0, 1234);
+	g_assert_cmpstr ((char *)f->xtext->buffer->text_last->str, ==, " ");
+}
+
+static void test_utf8_limits (Fixture *f, gconstpointer data)
+{
+	GString *text = g_string_new (NULL);
+	int i;
+	for (i = 0; i < 1500; i++) g_string_append (text, "猫");
+	gtk_xtext_append (f->xtext->buffer, (guchar *)text->str, text->len, 1234);
+	g_assert_cmpint (f->xtext->buffer->text_last->str_len, ==, 4095);
+	g_assert_true (g_utf8_validate ((char *)f->xtext->buffer->text_last->str, -1, NULL));
+	gtk_xtext_append_indent (f->xtext->buffer, (guchar *)text->str, text->len,
+		(guchar *)"猫", -1, 1234);
+	g_assert_cmpint (f->xtext->buffer->text_last->str_len, <=, 4095);
+	g_assert_true (g_utf8_validate ((char *)f->xtext->buffer->text_last->str, -1, NULL));
+	gtk_xtext_append (f->xtext->buffer, (guchar *)"hello 猫", 8, 1234);
+	g_assert_cmpstr ((char *)f->xtext->buffer->text_last->str, ==, "hello ");
+	gtk_xtext_append (f->xtext->buffer, (guchar *)"ok\xff" "bad", 6, 1234);
+	g_assert_cmpstr ((char *)f->xtext->buffer->text_last->str, ==, "ok");
+	g_string_free (text, TRUE);
+}
+
+static void test_null_empty_prefix (Fixture *f, gconstpointer data)
+{
+	xtext_buffer *buf = f->xtext->buffer;
+	/* PrintTextLine passes NULL/0 for indented server text without a tab. */
+	gtk_xtext_append_indent (buf, NULL, 0, (guchar *)"server notice", -1, 1234);
+	g_assert_cmpstr ((char *)buf->text_last->str, ==, " server notice");
+	g_assert_cmpint (buf->text_last->left_len, ==, 0);
+	g_assert_cmpint (buf->text_last->stamp, ==, 1234);
+	gtk_xtext_append_indent (buf, (guchar *)"nick", -1, NULL, 0, 1234);
+	g_assert_cmpstr ((char *)buf->text_last->str, ==, "nick ");
+	gtk_xtext_append_indent (buf, NULL, 0, NULL, 0, 1234);
+	g_assert_cmpstr ((char *)buf->text_last->str, ==, " ");
+	g_assert_cmpint (buf->num_lines, ==, 3);
+	cairo_surface_destroy (snapshot (f, FALSE));
+}
+
+static void test_wrapping (Fixture *f, gconstpointer data)
+{
+	xtext_buffer *buf = f->xtext->buffer;
+	textentry *ent;
+	int start = 0, i;
+	append (f, "猫猫猫猫猫猫猫猫猫猫");
+	ent = buf->text_last;
+	/* A character wider than the row must still be kept whole. */
+	buf->window_width = 3;
+	gtk_xtext_lines_taken (buf, ent);
+	g_assert_cmpint (ent->subline_count, ==, 10);
+	for (i = 0; i < ent->subline_count; i++)
+	{
+		int end = gtk_xtext_subline_end (ent, i);
+		g_assert_cmpint (end, >, start);
+		g_assert_true (g_utf8_validate ((char *)ent->str + start, end - start, NULL));
+		start = end;
+	}
+	buf->window_width = 120;
+	gtk_xtext_lines_taken (buf, ent);
+	g_assert_cmpint (ent->subline_count, >, 1);
+	buf->window_width = 640;
+	gtk_xtext_lines_taken (buf, ent);
+	g_assert_cmpint (ent->subline_count, ==, 1);
+}
+
+static void test_font_isolation (Fixture *f, gconstpointer data)
+{
+	Fixture second;
+	int original = gtk_xtext_text_width (f->xtext, (guchar *)"WWii hello", 10);
+	fixture_setup (&second, NULL);
+	g_assert_true (gtk_xtext_set_font (second.xtext, "sans 30"));
+	g_assert_cmpint (gtk_xtext_text_width (second.xtext, (guchar *)"WWii hello", 10), >, original);
+	g_assert_cmpint (gtk_xtext_text_width (f->xtext, (guchar *)"WWii hello", 10), ==, original);
+	fixture_teardown (&second, NULL);
+	g_assert_cmpint (gtk_xtext_text_width (f->xtext, (guchar *)"WWii hello", 10), ==, original);
+}
+
+static void test_wide_metrics (Fixture *f, gconstpointer data)
+{
+	char *text = g_strnfill (4000, 'W');
+	g_assert_true (gtk_xtext_set_font (f->xtext, "sans 40"));
+	append (f, text);
+	g_assert_cmpint (f->xtext->buffer->text_last->str_width, >, 65535);
+	g_assert_cmpint (f->xtext->buffer->text_last->subline_count, >, 1);
+	g_free (text);
+}
+
+static void test_formatting (Fixture *f, gconstpointer data)
+{
+	const char *formatted = "a\002bold\002 \035italic\035 \00304,02red\017 \037u\037 \036s\036 \026r\026";
+	char *plain;
+	GSList *runs = NULL;
+	int len;
+	plain = (char *)gtk_xtext_strip_color ((guchar *)formatted, strlen (formatted), NULL, &len, &runs, FALSE);
+	g_assert_cmpstr (plain, ==, "abold italic red u s r");
+	g_assert_cmpint (len, ==, strlen (plain));
+	g_assert_cmpint (((offlen_t *)runs->data)->off, ==, 0);
+	g_slist_free_full (runs, g_free);
+	g_free (plain);
+	plain = (char *)gtk_xtext_strip_color ((guchar *)"a\010secret\010b", 10, NULL, &len, NULL, TRUE);
+	g_assert_cmpstr (plain, ==, "ab");
+	g_free (plain);
+	append (f, formatted);
+	gtk_xtext_append_indent (f->xtext->buffer, (guchar *)"nick", -1, (guchar *)formatted, -1, 1234);
+	f->xtext->auto_indent = TRUE;
+	f->xtext->buffer->time_stamp = TRUE;
+	f->xtext->buffer->indent = 130;
+	gtk_xtext_recalc_widths (f->xtext->buffer, FALSE);
+	cairo_surface_destroy (snapshot (f, FALSE));
+	g_assert_cmpstr ((char *)f->xtext->buffer->text_last->str, ==,
+		"nick a\002bold\002 \035italic\035 \00304,02red\017 \037u\037 \036s\036 \026r\026");
+}
+
+static void select_entries (Fixture *f, textentry *start, textentry *end)
+{
+	textentry *ent;
+	for (ent = start; ent; ent = ent->next)
+	{
+		ent->mark_start = 0;
+		ent->mark_end = ent->str_len;
+		if (ent == end) break;
+	}
+	gtk_xtext_selection_render (f->xtext, start, end);
+	f->xtext->selection_buffer = f->xtext->buffer;
+}
+
+static void test_selection_and_clipboard (Fixture *f, gconstpointer data)
+{
+	char *selected;
+	int len;
+	append (f, "");
+	append (f, "\002bold\002 猫");
+	append (f, "last");
+	select_entries (f, f->xtext->buffer->text_first, f->xtext->buffer->text_last);
+	selected = gtk_xtext_selection_get_text (f->xtext, &len);
+	g_assert_cmpstr (selected, ==, "\nbold 猫\nlast");
+	g_assert_cmpint (len, ==, strlen (selected));
+	g_free (selected);
+	f->xtext->color_paste = TRUE;
+	f->xtext->mark_stamp = TRUE;
+	selected = gtk_xtext_selection_get_text (f->xtext, &len);
+	g_assert_cmpstr (selected, ==, "\n[12:34] \002bold\002 猫\n[12:34] last");
+	g_free (selected);
+	f->xtext->color_paste = f->xtext->mark_stamp = FALSE;
+	gtk_xtext_copy_selection (f->xtext);
+	selected = gtk_clipboard_wait_for_text (gtk_widget_get_clipboard (GTK_WIDGET (f->xtext), GDK_SELECTION_CLIPBOARD));
+	g_assert_cmpstr (selected, ==, "\nbold 猫\nlast");
+	g_free (selected);
+	selected = gtk_clipboard_wait_for_text (gtk_widget_get_clipboard (GTK_WIDGET (f->xtext), GDK_SELECTION_PRIMARY));
+	g_assert_cmpstr (selected, ==, "\nbold 猫\nlast");
+	g_free (selected);
+	gtk_xtext_unselect (f->xtext);
+	g_assert_false (gtk_xtext_is_selecting (f->xtext));
+}
+
+static void test_search (Fixture *f, gconstpointer data)
+{
+	GError *error = NULL;
+	textentry *first;
+	xtext_buffer *buf = f->xtext->buffer;
+	append (f, "one \002needle\002 then NEEDLE");
+	first = buf->text_last;
+	append (f, "second needle");
+	g_assert_true (gtk_xtext_search (f->xtext, "needle", highlight, &error) == first);
+	g_assert_no_error (error);
+	g_assert_cmpint (g_list_length (first->marks), ==, 2);
+	g_assert_true (gtk_xtext_search (f->xtext, "needle", highlight, &error) == first);
+	g_assert_true (gtk_xtext_search (f->xtext, "needle", highlight, &error) == buf->text_last);
+	gtk_xtext_search (f->xtext, "", 0, &error);
+	g_assert_null (buf->search_found);
+	g_assert_true (gtk_xtext_search (f->xtext, "needle", backward | case_match, &error) == buf->text_last);
+	gtk_xtext_search (f->xtext, "n[a-z]+", regexp | case_match, &error);
+	g_assert_no_error (error);
+	g_assert_nonnull (buf->search_re);
+	gtk_xtext_search (f->xtext, "[", regexp, &error);
+	g_assert_error (error, G_REGEX_ERROR, G_REGEX_ERROR_UNTERMINATED_CHARACTER_CLASS);
+	g_clear_error (&error);
+	/* A no-match search must also release its regex/text on clear. */
+	gtk_xtext_search (f->xtext, "nomatch", regexp, &error);
+	g_assert_null (buf->search_found);
+	gtk_xtext_clear (buf, 0);
+	g_assert_null (buf->search_re);
+	g_assert_null (buf->search_text);
+}
+
+static void test_follow_search (Fixture *f, gconstpointer data)
+{
+	xtext_buffer *buf = f->xtext->buffer;
+	append (f, "match first");
+	gtk_xtext_search (f->xtext, "match", 0, NULL);
+	append (f, "match second");
+	gtk_xtext_search (f->xtext, NULL, follow, NULL);
+	g_assert_cmpint (g_list_length (buf->search_found), ==, 2);
+	GList *current = buf->curmark;
+	gtk_xtext_search (f->xtext, NULL, 0, NULL);
+	gtk_xtext_search (f->xtext, NULL, follow, NULL);
+	g_assert_cmpint (g_list_length (buf->search_found), ==, 2);
+	g_assert_true (buf->curmark == current);
+	append (f, "match third");
+	g_assert_cmpint (g_list_length (buf->search_found), ==, 3);
+}
+
+static void test_search_unicode_offsets (Fixture *f, gconstpointer data)
+{
+	xtext_buffer *buf = f->xtext->buffer;
+	offsets_t mark;
+	append (f, "İ \002NEEDLE\002 Straße");
+	gtk_xtext_search (f->xtext, "needle", 0, NULL);
+	mark.u = GPOINTER_TO_UINT (buf->text_first->marks->data);
+	g_assert_cmpint (mark.o.start, ==, 4);
+	/* The established color-offset mapping includes the closing control. */
+	g_assert_cmpint (mark.o.end, ==, 11);
+	gtk_xtext_search (f->xtext, "ss", 0, NULL);
+	mark.u = GPOINTER_TO_UINT (buf->text_first->marks->data);
+	g_assert_cmpint (mark.o.start, ==, 16);
+	g_assert_cmpint (mark.o.end, ==, 18);
+	gtk_xtext_clear (buf, 0);
+	append (f, "ſ needle");
+	gtk_xtext_search (f->xtext, "needle", 0, NULL);
+	mark.u = GPOINTER_TO_UINT (buf->text_first->marks->data);
+	g_assert_cmpint (mark.o.start, ==, 3);
+	g_assert_cmpint (mark.o.end, ==, 9);
+}
+
+static void test_rawlog_hidden_text (Fixture *f, gconstpointer data)
+{
+	int hidden, visible;
+	append (f, "a\010secret\010b");
+	hidden = f->xtext->buffer->text_last->str_width;
+	f->xtext->ignore_hidden = TRUE;
+	gtk_xtext_recalc_widths (f->xtext->buffer, TRUE);
+	visible = f->xtext->buffer->text_last->str_width;
+	g_assert_cmpint (visible, >, hidden);
+	g_assert_cmpint (visible, ==, gtk_xtext_text_width (f->xtext, (guchar *)"asecretb", 8));
+}
+
+static void test_save (Fixture *f, gconstpointer data)
+{
+	char *path, *saved;
+	GError *error = NULL;
+	int fd = g_file_open_tmp ("zoitechat-xtext-XXXXXX", &path, &error);
+	g_assert_no_error (error);
+	append (f, "\002bold\002 猫");
+	append (f, "");
+	append (f, "last");
+	gtk_xtext_save (f->xtext, fd);
+	close (fd);
+	g_assert_true (g_file_get_contents (path, &saved, NULL, &error));
+	g_assert_no_error (error);
+	g_assert_cmpstr (saved, ==, "bold 猫\n\nlast\n");
+	g_free (saved);
+	g_unlink (path);
+	g_free (path);
+}
+
+static void test_scrollable_ownership (Fixture *f, gconstpointer data)
+{
+	GtkAdjustment *horizontal = GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, 1, 1, 1, 1));
+	GtkAdjustment *vertical = GTK_ADJUSTMENT (gtk_adjustment_new (0, 0, 100, 1, 10, 10));
+	GtkAdjustment *old = g_object_ref (f->xtext->adj);
+	g_object_set (f->xtext, "hadjustment", horizontal, "vadjustment", vertical, NULL);
+	g_assert_false (g_object_is_floating (horizontal));
+	g_assert_false (g_object_is_floating (vertical));
+	g_assert_true (f->xtext->hadj == horizontal);
+	g_assert_true (f->xtext->adj == vertical);
+	/* A replaced adjustment must no longer call into the widget. */
+	g_assert_cmpuint (g_signal_handler_find (old, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, f->xtext), ==, 0);
+	g_signal_emit_by_name (f->xtext, "set-scroll-adjustments", horizontal, vertical);
+	g_assert_true (f->xtext->adj == vertical);
+	g_object_set (f->xtext, "hadjustment", NULL, "vadjustment", NULL, NULL);
+	g_assert_true (GTK_IS_ADJUSTMENT (f->xtext->hadj));
+	g_assert_true (GTK_IS_ADJUSTMENT (f->xtext->adj));
+	g_object_unref (old);
+}
+
+static void test_clear_and_marker (Fixture *f, gconstpointer data)
+{
+	xtext_buffer *buf = f->xtext->buffer;
+	append (f, "first"); append (f, "second"); append (f, "third");
+	buf->marker_pos = buf->text_first;
+	buf->marker_state = MARKER_IS_SET;
+	gtk_xtext_clear (buf, 1);
+	g_assert_cmpstr ((char *)buf->text_first->str, ==, "second");
+	g_assert_cmpint (buf->marker_state, ==, MARKER_RESET_BY_CLEAR);
+	gtk_xtext_clear (buf, -1);
+	g_assert_cmpstr ((char *)buf->text_last->str, ==, "second");
+	select_entries (f, buf->text_first, buf->text_last);
+	f->xtext->hilight_ent = buf->text_first;
+	gtk_xtext_clear (buf, 0);
+	g_assert_null (f->xtext->hilight_ent);
+	g_assert_null (buf->pagetop_ent);
+	g_assert_null (buf->last_ent_start);
+	g_assert_cmpint (buf->num_lines, ==, 0);
+	g_assert_true (gtk_xtext_is_empty (buf));
+	append (f, "after clear");
+	g_assert_cmpint (buf->num_lines, ==, 1);
+}
+
+static void test_scrollback_limit (Fixture *f, gconstpointer data)
+{
+	int i;
+	xtext_buffer *buf = f->xtext->buffer;
+	gtk_xtext_set_max_lines (f->xtext, 10);
+	for (i = 0; i < 100; i++) append (f, "line");
+	g_assert_cmpint (buf->num_lines, ==, 10);
+	g_assert_null (buf->text_first->prev);
+	g_assert_null (buf->text_last->next);
+	g_assert_cmpfloat (gtk_adjustment_get_value (f->xtext->adj), >=, 0);
+}
+
+static void test_follow_trim_oversized_entry (Fixture *f, gconstpointer data)
+{
+	char *long_text = g_strnfill (4000, 'W');
+	gtk_xtext_set_max_lines (f->xtext, 3);
+	append (f, "needle");
+	gtk_xtext_search (f->xtext, "W", follow, NULL);
+	gtk_xtext_clear (f->xtext->buffer, 1);
+	append (f, long_text);
+	g_assert_true (gtk_xtext_is_empty (f->xtext->buffer));
+	g_assert_null (f->xtext->buffer->search_found);
+	g_free (long_text);
+	append (f, "after oversized");
+	gtk_xtext_clear (f->xtext->buffer, G_MININT);
+	g_assert_true (gtk_xtext_is_empty (f->xtext->buffer));
+}
+
+static void test_stress (Fixture *f, gconstpointer data)
+{
+	static const char *tokens[] = {"text ", "猫", "😀", "\002bold\002", "\00304,02red\017", "\010hidden\010", "\037u\037", "\036s\036"};
+	GRand *random = g_rand_new_with_seed (0x78746578);
+	xtext_buffer *buf = f->xtext->buffer;
+	int i;
+	gtk_xtext_set_max_lines (f->xtext, 80);
+	for (i = 0; i < 2000; i++)
+	{
+		GString *text = g_string_new (NULL);
+		textentry *ent;
+		int j, lines = 0;
+		for (j = 0; j < 30; j++)
+			g_string_append (text, tokens[g_rand_int_range (random, 0, G_N_ELEMENTS (tokens))]);
+		if (i % 2)
+			gtk_xtext_append_indent (buf, (guchar *)"nick", -1, (guchar *)text->str, text->len, 1234);
+		else
+			gtk_xtext_append (buf, (guchar *)text->str, text->len, 1234);
+		g_string_free (text, TRUE);
+		if (i % 29 == 0) gtk_xtext_search (f->xtext, "text", follow | highlight, NULL);
+		if (i % 31 == 0) gtk_xtext_clear (buf, 1);
+		if (i % 37 == 0) gtk_xtext_clear (buf, -1);
+		if (i % 101 == 0) gtk_xtext_clear (buf, 0);
+		for (ent = buf->text_first; ent; ent = ent->next)
+		{
+			g_assert_true (g_utf8_validate ((char *)ent->str, ent->str_len, NULL));
+			g_assert_cmpint (ent->subline_count, >, 0);
+			lines += ent->subline_count;
+		}
+		g_assert_cmpint (buf->num_lines, ==, lines);
+		if (i % 43 == 0) cairo_surface_destroy (snapshot (f, FALSE));
+	}
+	g_rand_free (random);
+}
+
+static void test_buffers (Fixture *f, gconstpointer data)
+{
+	xtext_buffer *original = f->xtext->buffer;
+	xtext_buffer *second = gtk_xtext_buffer_new (f->xtext);
+	append (f, "original");
+	gtk_xtext_append (second, (guchar *)"alternate", -1, 1234);
+	gtk_xtext_buffer_show (f->xtext, second, TRUE);
+	g_assert_true (f->xtext->buffer == second);
+	cairo_surface_destroy (snapshot (f, FALSE));
+	gtk_xtext_buffer_show (f->xtext, original, TRUE);
+	g_assert_cmpstr ((char *)f->xtext->buffer->text_first->str, ==, "original");
+	gtk_xtext_buffer_free (second);
+}
+
+static void test_partial_draw_after_scroll (Fixture *f, gconstpointer data)
+{
+	cairo_surface_t *partial, *full;
+	int i, stride, height, y;
+	for (i = 0; i < 80; i++)
+	{
+		char *line = g_strdup_printf ("line %d — 猫 \002bold\002", i);
+		append (f, line);
+		g_free (line);
+	}
+	cairo_surface_destroy (snapshot (f, FALSE));
+	gtk_adjustment_set_value (f->xtext->adj, 12.5);
+	partial = snapshot (f, TRUE);
+	full = snapshot (f, FALSE);
+	stride = cairo_image_surface_get_stride (full);
+	height = cairo_image_surface_get_height (full);
+	for (y = f->xtext->fontsize; y < height; y++)
+		g_assert_cmpmem (cairo_image_surface_get_data (partial) + y * stride, stride,
+			cairo_image_surface_get_data (full) + y * stride, stride);
+	cairo_surface_destroy (partial);
+	cairo_surface_destroy (full);
+}
+
+static void test_image_lifecycle (Fixture *f, gconstpointer data)
+{
+	GdkPixbuf *image = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, 800, 600);
+	xtext_buffer *buf = f->xtext->buffer;
+	textentry *ent;
+	guint handle;
+	int before;
+	gdk_pixbuf_fill (image, 0xff0000ff);
+	append (f, "image");
+	ent = buf->text_last;
+	before = buf->num_lines;
+	handle = gtk_xtext_image_load_begin (f->xtext, ent, "https://example.invalid/image.png");
+	g_assert_cmpuint (handle, !=, 0);
+	g_assert_cmpuint (gtk_xtext_image_load_begin (f->xtext, ent, "duplicate"), ==, 0);
+	g_assert_true (gtk_xtext_image_load_finish (handle, image));
+	g_assert_cmpint (buf->num_lines, >, before);
+	g_assert_true (gtk_xtext_entry_has_image (f->xtext, ent));
+	g_assert_cmpint (gdk_pixbuf_get_width (ent->image), <=, XTEXT_IMAGE_MAX_WIDTH);
+	g_assert_true (gtk_xtext_entry_get_full_image (f->xtext, ent) == image);
+	cairo_surface_destroy (snapshot (f, FALSE));
+	g_assert_true (gtk_xtext_image_remove (f->xtext, ent));
+	g_assert_cmpint (buf->num_lines, ==, before);
+	handle = gtk_xtext_image_load_begin (f->xtext, ent, "late");
+	gtk_xtext_clear (buf, 0);
+	g_assert_false (gtk_xtext_image_load_finish (handle, image));
+	g_assert_false (gtk_xtext_entry_has_image (f->xtext, ent));
+	g_assert_null (gtk_xtext_entry_get_full_image (f->xtext, ent));
+	g_object_unref (image);
+}
+
+static void test_background (Fixture *f, gconstpointer data)
+{
+	cairo_surface_t *background = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 32, 32);
+	cairo_t *cr = cairo_create (background);
+	cairo_set_source_rgb (cr, 0.2, 0.3, 0.4);
+	cairo_paint (cr);
+	cairo_destroy (cr);
+	gtk_xtext_set_background (f->xtext, background);
+	cairo_surface_destroy (background);
+	gtk_xtext_set_background (f->xtext, f->xtext->background_surface);
+	append (f, "background text");
+	cairo_surface_destroy (snapshot (f, FALSE));
+	gtk_xtext_set_background (f->xtext, NULL);
+	cairo_surface_destroy (snapshot (f, FALSE));
+}
+
+static void test_destroy_pending_sources (Fixture *f, gconstpointer data)
+{
+	guint image;
+	append (f, "pending");
+	image = gtk_xtext_image_load_begin (f->xtext, f->xtext->buffer->text_last, "late");
+	f->xtext->io_tag = g_timeout_add (10000, gtk_xtext_adjustment_timeout, f->xtext);
+	f->xtext->add_io_tag = g_timeout_add (10000, gtk_xtext_render_page_timeout, f->xtext);
+	f->xtext->scroll_tag = g_timeout_add (10000, gtk_xtext_scrollup_timeout, f->xtext);
+	gtk_widget_destroy (f->window);
+	g_assert_cmpint (f->xtext->io_tag, ==, 0);
+	g_assert_cmpint (f->xtext->add_io_tag, ==, 0);
+	g_assert_cmpint (f->xtext->scroll_tag, ==, 0);
+	g_assert_false (gtk_xtext_image_load_finish (image, NULL));
+	/* GtkWidget destruction must be safe if GObject dispose runs again. */
+	g_object_run_dispose (G_OBJECT (f->xtext));
+	f->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+}
+
+int main (int argc, char **argv)
+{
+	g_test_init (&argc, &argv, NULL);
+	if (!gtk_init_check (&argc, &argv))
+	{
+		g_test_message ("GTK display unavailable; run under Xvfb for widget coverage");
+		return 77;
+	}
+	prefs.hex_gui_mouse_scroll_speed = 10;
+#define ADD(name, function) g_test_add ("/xtext/" name, Fixture, NULL, fixture_setup, function, fixture_teardown)
+	ADD ("append/empty-bounded", test_empty_and_bounded_append);
+	ADD ("append/utf8-limits", test_utf8_limits);
+	ADD ("append/null-empty-prefix", test_null_empty_prefix);
+	ADD ("layout/wrapping", test_wrapping);
+	ADD ("layout/font-isolation", test_font_isolation);
+	ADD ("layout/wide-metrics", test_wide_metrics);
+	ADD ("render/formatting-timestamps", test_formatting);
+	ADD ("selection/clipboard", test_selection_and_clipboard);
+	ADD ("search/navigation-regex-clear", test_search);
+	ADD ("search/follow", test_follow_search);
+	ADD ("search/unicode-offsets", test_search_unicode_offsets);
+	ADD ("render/rawlog-hidden", test_rawlog_hidden_text);
+	ADD ("buffer/save", test_save);
+	ADD ("lifecycle/scrollable-ownership", test_scrollable_ownership);
+	ADD ("buffer/clear-marker", test_clear_and_marker);
+	ADD ("buffer/scrollback-limit", test_scrollback_limit);
+	ADD ("buffer/follow-trim-oversized", test_follow_trim_oversized_entry);
+	ADD ("buffer/stress", test_stress);
+	ADD ("buffer/switch", test_buffers);
+	ADD ("render/partial-scroll", test_partial_draw_after_scroll);
+	ADD ("images/lifecycle", test_image_lifecycle);
+	ADD ("render/background", test_background);
+	ADD ("lifecycle/pending-sources", test_destroy_pending_sources);
+#undef ADD
+	return g_test_run ();
+}

src/fe-gtk/textgui.c

@@ -92,7 +92,7 @@ PrintTextLine (xtext_buffer *xtbuf, unsigned char *text, int len, int indent, ti
 			memcpy (new_text, stamp, stamp_size);
 			g_free (stamp);
 			memcpy (new_text + stamp_size, text, len);
-			gtk_xtext_append (xtbuf, new_text, len + stamp_size, timet);
+			gtk_xtext_append_wrap (xtbuf, new_text, len + stamp_size, timet, stamp_size);
 			g_free (new_text);
 		} else
 			gtk_xtext_append (xtbuf, text, len, timet);

src/fe-gtk/xtext.h

@@ -38,6 +38,7 @@ GType gtk_xtext_get_type (void);
 
 #define ATTR_BOLD				'\002'
 #define ATTR_COLOR			'\003'
+#define ATTR_HEXCOLOR		'\004'
 #define ATTR_BLINK			'\006'
 #define ATTR_BEEP				'\007'
 #define ATTR_HIDDEN			'\010'
@@ -57,6 +58,8 @@ GType gtk_xtext_get_type (void);
 #define XTEXT_BG 102
 #define XTEXT_MARKER 103	/* for marker line */
 #define XTEXT_MAX_COLOR 98
+#define XTEXT_HEX_FG 200	/* not palette slots: colors from \004RRGGBB */
+#define XTEXT_HEX_BG 201
 typedef struct textentry textentry;
 
 /*
@@ -181,6 +184,8 @@ struct _GtkXText
 
 	int col_fore;
 	int col_back;
+	XTextColor hex_fg;
+	XTextColor hex_bg;
 
 	int depth;						  /* gdk window depth */
 
@@ -276,6 +281,7 @@ struct _GtkXTextClass
 
 GtkWidget *gtk_xtext_new (const XTextColor *palette, int separator);
 void gtk_xtext_append (xtext_buffer *buf, unsigned char *text, int len, time_t stamp);
+void gtk_xtext_append_wrap (xtext_buffer *buf, unsigned char *text, int len, time_t stamp, int stamp_len);
 void gtk_xtext_append_indent (xtext_buffer *buf,
 										unsigned char *left_text, int left_len,
 										unsigned char *right_text, int right_len,

win32/msix/AppxManifest.xml.in

@@ -0,0 +1,82 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Package
+  xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10"
+  xmlns:uap="http://schemas.microsoft.com/appx/manifest/uap/windows10"
+  xmlns:uap3="http://schemas.microsoft.com/appx/manifest/uap/windows10/3"
+  xmlns:uap10="http://schemas.microsoft.com/appx/manifest/uap/windows10/10"
+  xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"
+  IgnorableNamespaces="uap uap3 uap10 rescap">
+
+  <!--
+    Identity values are filled by build-msix.ps1. For Microsoft Store
+    submissions they must exactly match Product management > Product identity
+    in Partner Center.
+  -->
+  <Identity
+    Name="@IDENTITY_NAME@"
+    Publisher="@PUBLISHER@"
+    Version="@PACKAGE_VERSION@"
+    ProcessorArchitecture="x64" />
+
+  <Properties>
+    <DisplayName>ZoiteChat</DisplayName>
+    <PublisherDisplayName>@PUBLISHER_DISPLAY_NAME@</PublisherDisplayName>
+    <Description>ZoiteChat IRC client</Description>
+    <Logo>Assets\StoreLogo.png</Logo>
+  </Properties>
+
+  <Resources>
+    <Resource Language="en-us" />
+  </Resources>
+
+  <Dependencies>
+    <TargetDeviceFamily
+      Name="Windows.Desktop"
+      MinVersion="10.0.19041.0"
+      MaxVersionTested="10.0.26100.0" />
+    <PackageDependency
+      Name="Microsoft.VCLibs.140.00.UWPDesktop"
+      Publisher="CN=Microsoft Corporation, O=Microsoft Corporation, L=Redmond, S=Washington, C=US"
+      MinVersion="14.0.30704.0" />
+  </Dependencies>
+
+  <Capabilities>
+    <rescap:Capability Name="runFullTrust" />
+  </Capabilities>
+
+  <Applications>
+    <Application
+      Id="ZoiteChat"
+      Executable="ZoiteChat\zoitechat.exe"
+      uap10:RuntimeBehavior="packagedClassicApp"
+      uap10:TrustLevel="mediumIL">
+
+      <uap:VisualElements
+        DisplayName="ZoiteChat"
+        Description="ZoiteChat IRC client"
+        BackgroundColor="transparent"
+        Square150x150Logo="Assets\Square150x150Logo.png"
+        Square44x44Logo="Assets\Square44x44Logo.png" />
+
+      <Extensions>
+        <uap3:Extension Category="windows.protocol">
+          <uap3:Protocol
+            Name="irc"
+            Parameters="--url=&quot;%1&quot;" />
+        </uap3:Extension>
+
+        <uap3:Extension Category="windows.fileTypeAssociation">
+          <uap3:FileTypeAssociation
+            Name="zoitechattheme"
+            Parameters="&quot;%1&quot;">
+            <uap:DisplayName>ZoiteChat Theme</uap:DisplayName>
+            <uap:SupportedFileTypes>
+              <uap:FileType>.zct</uap:FileType>
+              <uap:FileType>.hct</uap:FileType>
+            </uap:SupportedFileTypes>
+          </uap3:FileTypeAssociation>
+        </uap3:Extension>
+      </Extensions>
+    </Application>
+  </Applications>
+</Package>

win32/msix/build-msix.ps1

@@ -0,0 +1,392 @@
+[CmdletBinding()]
+param(
+    [Parameter(Mandatory = $true)]
+    [string] $SourceDir,
+
+    [Parameter(Mandatory = $true)]
+    [string] $OutputPath,
+
+    [Parameter(Mandatory = $true)]
+    [ValidatePattern('^\d+\.\d+\.\d+\.0$')]
+    [string] $PackageVersion,
+
+    [Parameter(Mandatory = $true)]
+    [string] $IdentityName,
+
+    [Parameter(Mandatory = $true)]
+    [string] $Publisher,
+
+    [Parameter(Mandatory = $true)]
+    [string] $PublisherDisplayName,
+
+    [switch] $SelfSign
+)
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference = 'Stop'
+
+Add-Type -AssemblyName System.Drawing
+
+function Find-WindowsSdkTool {
+    param(
+        [Parameter(Mandatory = $true)]
+        [string] $ToolName
+    )
+
+    $command = Get-Command $ToolName -ErrorAction SilentlyContinue
+    if ($command) {
+        return $command.Source
+    }
+
+    $kitsRoot = Join-Path ${env:ProgramFiles(x86)} 'Windows Kits\10\bin'
+    if (-not (Test-Path $kitsRoot)) {
+        throw "Windows SDK bin directory was not found: $kitsRoot"
+    }
+
+    $tool = Get-ChildItem -Path $kitsRoot -Filter $ToolName -File -Recurse |
+        Where-Object { $_.FullName -match '\\x64\\' } |
+        Sort-Object {
+            $versionDirectory = Split-Path (Split-Path $_.DirectoryName -Parent) -Leaf
+            try {
+                [version] $versionDirectory
+            }
+            catch {
+                [version] '0.0'
+            }
+        } -Descending |
+        Select-Object -First 1
+
+    if (-not $tool) {
+        throw "$ToolName was not found in the installed Windows SDK."
+    }
+
+    return $tool.FullName
+}
+
+function Escape-Xml {
+    param(
+        [Parameter(Mandatory = $true)]
+        [string] $Value
+    )
+
+    return [System.Security.SecurityElement]::Escape($Value)
+}
+
+function New-MsixAsset {
+    param(
+        [Parameter(Mandatory = $true)]
+        [System.Drawing.Image] $SourceImage,
+
+        [Parameter(Mandatory = $true)]
+        [int] $Width,
+
+        [Parameter(Mandatory = $true)]
+        [int] $Height,
+
+        [Parameter(Mandatory = $true)]
+        [string] $Path
+    )
+
+    $bitmap = [System.Drawing.Bitmap]::new($Width, $Height)
+    try {
+        $graphics = [System.Drawing.Graphics]::FromImage($bitmap)
+        try {
+            $graphics.Clear([System.Drawing.Color]::Transparent)
+            $graphics.InterpolationMode = [System.Drawing.Drawing2D.InterpolationMode]::HighQualityBicubic
+            $graphics.PixelOffsetMode = [System.Drawing.Drawing2D.PixelOffsetMode]::HighQuality
+            $graphics.SmoothingMode = [System.Drawing.Drawing2D.SmoothingMode]::HighQuality
+
+            $scale = [Math]::Min($Width / $SourceImage.Width, $Height / $SourceImage.Height)
+            $drawWidth = [Math]::Max(1, [int][Math]::Round($SourceImage.Width * $scale))
+            $drawHeight = [Math]::Max(1, [int][Math]::Round($SourceImage.Height * $scale))
+            $x = [int](($Width - $drawWidth) / 2)
+            $y = [int](($Height - $drawHeight) / 2)
+
+            $graphics.DrawImage($SourceImage, $x, $y, $drawWidth, $drawHeight)
+        }
+        finally {
+            $graphics.Dispose()
+        }
+
+        $bitmap.Save($Path, [System.Drawing.Imaging.ImageFormat]::Png)
+    }
+    finally {
+        $bitmap.Dispose()
+    }
+}
+
+$source = (Resolve-Path $SourceDir).Path
+if (-not (Test-Path (Join-Path $source 'zoitechat.exe'))) {
+    throw "Staged ZoiteChat executable is missing from $source"
+}
+
+$repoRoot = (Resolve-Path (Join-Path $PSScriptRoot '..\..')).Path
+$templatePath = Join-Path $PSScriptRoot 'AppxManifest.xml.in'
+$iconPath = Join-Path $repoRoot 'data\icons\zoitechat.png'
+
+if (-not (Test-Path $templatePath)) {
+    throw "MSIX manifest template is missing: $templatePath"
+}
+if (-not (Test-Path $iconPath)) {
+    throw "ZoiteChat PNG icon is missing: $iconPath"
+}
+
+if ([System.IO.Path]::IsPathRooted($OutputPath)) {
+    $output = [System.IO.Path]::GetFullPath($OutputPath)
+}
+else {
+    $output = [System.IO.Path]::GetFullPath((Join-Path $PWD $OutputPath))
+}
+$outputDirectory = Split-Path $output -Parent
+New-Item -ItemType Directory -Path $outputDirectory -Force | Out-Null
+
+$stagingRoot = Join-Path $env:RUNNER_TEMP 'zoitechat-msix'
+$verifyRoot = Join-Path $env:RUNNER_TEMP 'zoitechat-msix-verify'
+$pfxPath = Join-Path $env:RUNNER_TEMP 'zoitechat-msix-dev.pfx'
+
+foreach ($path in @($stagingRoot, $verifyRoot)) {
+    if (Test-Path $path) {
+        Remove-Item -Path $path -Recurse -Force
+    }
+}
+if (Test-Path $pfxPath) {
+    Remove-Item -Path $pfxPath -Force
+}
+
+New-Item -ItemType Directory -Path $stagingRoot -Force | Out-Null
+$appRoot = Join-Path $stagingRoot 'ZoiteChat'
+New-Item -ItemType Directory -Path $appRoot -Force | Out-Null
+Copy-Item -Path (Join-Path $source '*') -Destination $appRoot -Recurse -Force
+
+# copy.vcxproj stages everything needed by every Inno component. The Store
+# package keeps the useful bundled plugins and scripting bridges while letting
+# the Microsoft Store own application updates. The WinSparkle updater is the
+# only bundled plugin deliberately removed from the Store package.
+$excludeFiles = @(
+    'portable-mode',
+    'zoitechat-text.exe',
+    'plugins\hcupd.dll',
+    'WinSparkle.dll',
+    'share\download.png'
+)
+
+foreach ($relativePath in $excludeFiles) {
+    $path = Join-Path $appRoot $relativePath
+    if (Test-Path $path) {
+        Remove-Item -Path $path -Force
+    }
+}
+
+foreach ($relativePath in @('share\doc\WinSparkle')) {
+    $path = Join-Path $appRoot $relativePath
+    if (Test-Path $path) {
+        Remove-Item -Path $path -Recurse -Force
+    }
+}
+
+foreach ($requiredPath in @(
+    'zoitechat.exe',
+    'plugins\hcnotifications-winrt.dll',
+    'plugins\hcchecksum.dll',
+    'plugins\hcexec.dll',
+    'plugins\hcfishlim.dll',
+    'plugins\hcsysinfo.dll',
+    'share\system.png',
+    'share\fonts\zoitechat\NotoColorEmoji.ttf',
+    'share\doc\zoitechat\fonts\OFL.txt',
+    'plugins\hclua.dll',
+    'plugins\hcperl.dll',
+    'plugins\hcpython3.dll',
+    'plugins\hcpython38.dll'
+)) {
+    if (-not (Test-Path (Join-Path $appRoot $requiredPath))) {
+        throw "MSIX staging is missing required file: $requiredPath"
+    }
+}
+
+foreach ($requiredPattern in @('_cffi_backend.cp314*.pyd', '_cffi_backend.cp38*.pyd')) {
+    $match = Get-ChildItem -Path $appRoot -Filter $requiredPattern -File -ErrorAction SilentlyContinue |
+        Select-Object -First 1
+    if ($null -eq $match) {
+        throw "MSIX staging is missing required Python support file: $requiredPattern"
+    }
+}
+
+foreach ($requiredPythonFile in @('zoitechat.py', '_zoitechat.py', 'hexchat.py', 'xchat.py')) {
+    $path = Join-Path (Join-Path $appRoot 'python') $requiredPythonFile
+    if (-not (Test-Path $path)) {
+        throw "MSIX staging is missing required Python bridge file: $requiredPythonFile"
+    }
+}
+
+$assets = Join-Path $stagingRoot 'Assets'
+New-Item -ItemType Directory -Path $assets -Force | Out-Null
+
+$image = [System.Drawing.Image]::FromFile($iconPath)
+try {
+    New-MsixAsset -SourceImage $image -Width 50 -Height 50 `
+        -Path (Join-Path $assets 'StoreLogo.png')
+    New-MsixAsset -SourceImage $image -Width 44 -Height 44 `
+        -Path (Join-Path $assets 'Square44x44Logo.png')
+    New-MsixAsset -SourceImage $image -Width 150 -Height 150 `
+        -Path (Join-Path $assets 'Square150x150Logo.png')
+}
+finally {
+    $image.Dispose()
+}
+
+$manifest = Get-Content $templatePath -Raw -Encoding UTF8
+$manifest = $manifest.Replace('@IDENTITY_NAME@', (Escape-Xml $IdentityName))
+$manifest = $manifest.Replace('@PUBLISHER@', (Escape-Xml $Publisher))
+$manifest = $manifest.Replace('@PUBLISHER_DISPLAY_NAME@', (Escape-Xml $PublisherDisplayName))
+$manifest = $manifest.Replace('@PACKAGE_VERSION@', (Escape-Xml $PackageVersion))
+
+if ($manifest -match '@[A-Z0-9_]+@') {
+    throw "Unexpanded MSIX manifest placeholder: $($Matches[0])"
+}
+
+$manifestPath = Join-Path $stagingRoot 'AppxManifest.xml'
+[System.IO.File]::WriteAllText(
+    $manifestPath,
+    $manifest,
+    [System.Text.UTF8Encoding]::new($false)
+)
+
+# Catch malformed XML before MakeAppx so CI reports a useful error.
+[xml](Get-Content $manifestPath -Raw -Encoding UTF8) | Out-Null
+
+$makeAppx = Find-WindowsSdkTool -ToolName 'MakeAppx.exe'
+$signtool = Find-WindowsSdkTool -ToolName 'SignTool.exe'
+
+if (Test-Path $output) {
+    Remove-Item -Path $output -Force
+}
+
+& $makeAppx pack /d $stagingRoot /p $output /o
+if ($LASTEXITCODE -ne 0) {
+    throw "MakeAppx failed with exit code $LASTEXITCODE"
+}
+
+$certificate = $null
+try {
+    if ($SelfSign) {
+        # Partner Center replaces this development signature with Microsoft's
+        # trusted Store signature. The certificate subject must exactly match
+        # the manifest Publisher for SignTool to accept the package.
+        $certificate = New-SelfSignedCertificate `
+            -Type Custom `
+            -KeyUsage DigitalSignature `
+            -Subject $Publisher `
+            -CertStoreLocation 'Cert:\CurrentUser\My' `
+            -HashAlgorithm SHA256 `
+            -TextExtension @(
+                '2.5.29.37={text}1.3.6.1.5.5.7.3.3',
+                '2.5.29.19={text}'
+            ) `
+            -FriendlyName 'ZoiteChat MSIX CI signing certificate'
+
+        if ($certificate.Subject -cne $Publisher) {
+            throw "Generated certificate subject '$($certificate.Subject)' does not exactly match manifest Publisher '$Publisher'."
+        }
+
+        $passwordText = [Guid]::NewGuid().ToString('N')
+        $password = ConvertTo-SecureString -String $passwordText -AsPlainText -Force
+        Export-PfxCertificate -Cert $certificate -FilePath $pfxPath -Password $password | Out-Null
+
+        & $signtool sign /fd SHA256 /f $pfxPath /p $passwordText $output
+        if ($LASTEXITCODE -ne 0) {
+            throw "SignTool failed with exit code $LASTEXITCODE"
+        }
+
+        $signature = Get-AuthenticodeSignature -FilePath $output
+        if (-not $signature.SignerCertificate -or
+            $signature.SignerCertificate.Subject -cne $Publisher) {
+            throw 'MSIX signature does not match the manifest Publisher.'
+        }
+    }
+
+    New-Item -ItemType Directory -Path $verifyRoot -Force | Out-Null
+    & $makeAppx unpack /p $output /d $verifyRoot /o
+    if ($LASTEXITCODE -ne 0) {
+        throw "MakeAppx validation unpack failed with exit code $LASTEXITCODE"
+    }
+
+    [xml] $verifiedManifest = Get-Content (Join-Path $verifyRoot 'AppxManifest.xml') -Raw -Encoding UTF8
+    $ns = New-Object System.Xml.XmlNamespaceManager($verifiedManifest.NameTable)
+    $ns.AddNamespace('f', 'http://schemas.microsoft.com/appx/manifest/foundation/windows10')
+    $identity = $verifiedManifest.SelectSingleNode('/f:Package/f:Identity', $ns)
+    if (-not $identity) {
+        throw 'Validated MSIX does not contain a package Identity.'
+    }
+    if ($identity.Name -cne $IdentityName -or
+        $identity.Publisher -cne $Publisher -or
+        $identity.Version -cne $PackageVersion) {
+        throw 'Validated MSIX identity does not match the requested Store identity.'
+    }
+
+    foreach ($requiredPath in @(
+        'ZoiteChat\zoitechat.exe',
+        'ZoiteChat\plugins\hcnotifications-winrt.dll',
+        'ZoiteChat\plugins\hcchecksum.dll',
+        'ZoiteChat\plugins\hcexec.dll',
+        'ZoiteChat\plugins\hcfishlim.dll',
+        'ZoiteChat\plugins\hcsysinfo.dll',
+        'ZoiteChat\share\system.png',
+        'ZoiteChat\share\fonts\zoitechat\NotoColorEmoji.ttf',
+        'ZoiteChat\share\doc\zoitechat\fonts\OFL.txt',
+        'ZoiteChat\plugins\hclua.dll',
+        'ZoiteChat\plugins\hcperl.dll',
+        'ZoiteChat\plugins\hcpython3.dll',
+        'ZoiteChat\plugins\hcpython38.dll'
+    )) {
+        if (-not (Test-Path (Join-Path $verifyRoot $requiredPath))) {
+            throw "Validated MSIX is missing required file: $requiredPath"
+        }
+    }
+
+    foreach ($requiredPattern in @('_cffi_backend.cp314*.pyd', '_cffi_backend.cp38*.pyd')) {
+        $match = Get-ChildItem -Path (Join-Path $verifyRoot 'ZoiteChat') -Filter $requiredPattern -File -ErrorAction SilentlyContinue |
+            Select-Object -First 1
+        if ($null -eq $match) {
+            throw "Validated MSIX is missing required Python support file: $requiredPattern"
+        }
+    }
+
+    foreach ($requiredPythonFile in @('zoitechat.py', '_zoitechat.py', 'hexchat.py', 'xchat.py')) {
+        $path = Join-Path (Join-Path $verifyRoot 'ZoiteChat\python') $requiredPythonFile
+        if (-not (Test-Path $path)) {
+            throw "Validated MSIX is missing required Python bridge file: $requiredPythonFile"
+        }
+    }
+
+    foreach ($excludedPath in @(
+        'ZoiteChat\portable-mode',
+        'ZoiteChat\zoitechat-text.exe',
+        'ZoiteChat\plugins\hcupd.dll',
+        'ZoiteChat\WinSparkle.dll',
+        'ZoiteChat\share\download.png'
+    )) {
+        if (Test-Path (Join-Path $verifyRoot $excludedPath)) {
+            throw "MSIX incorrectly contains excluded file/directory: $excludedPath"
+        }
+    }
+}
+finally {
+    if ($certificate) {
+        Remove-Item -Path "Cert:\CurrentUser\My\$($certificate.Thumbprint)" -Force -ErrorAction SilentlyContinue
+    }
+    if (Test-Path $pfxPath) {
+        Remove-Item -Path $pfxPath -Force -ErrorAction SilentlyContinue
+    }
+    foreach ($path in @($stagingRoot, $verifyRoot)) {
+        if (Test-Path $path) {
+            Remove-Item -Path $path -Recurse -Force -ErrorAction SilentlyContinue
+        }
+    }
+}
+
+if (-not (Test-Path $output)) {
+    throw "Expected MSIX was not created: $output"
+}
+
+Write-Host "Created MSIX: $output"

win32/wix/zoitechat.wxs

@@ -0,0 +1,162 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
+  <!--
+    This MSI intentionally mirrors the staged portion of the normal Inno Setup
+    payload. Optional/custom-only files are excluded below. In particular,
+    portable-mode must never be harvested because copy.vcxproj always stages
+    that marker. Inno-only download-at-install components remain outside the MSI.
+  -->
+  <Package
+    Name="ZoiteChat"
+    Manufacturer="ZoiteChat"
+    Version="$(ProductVersion)"
+    UpgradeCode="{E9F09DF3-12FA-4BDF-A8AA-A6D62A327ED5}"
+    Scope="perMachine"
+    InstallerVersion="500"
+    Compressed="yes">
+
+    <MajorUpgrade
+      AllowSameVersionUpgrades="yes"
+      DowngradeErrorMessage="A newer version of ZoiteChat is already installed." />
+
+    <MediaTemplate EmbedCab="yes" CompressionLevel="high" />
+
+    <Icon Id="ZoiteChat.ico" SourceFile="$(sys.SOURCEFILEDIR)..\..\data\icons\zoitechat.ico" />
+    <Property Id="ARPPRODUCTICON" Value="ZoiteChat.ico" />
+    <Property Id="ARPHELPLINK" Value="https://github.com/ZoiteChat/zoitechat/issues" />
+    <Property Id="ARPURLINFOABOUT" Value="https://zoitechat.org/" />
+    <Property Id="ARPURLUPDATEINFO" Value="https://zoitechat.org/downloads.html" />
+    <Property Id="ARPNOMODIFY" Value="1" />
+
+    <!--
+      The Inno installer can bootstrap the VC++ runtime. A plain MSI should not
+      run an EXE prerequisite as an MSI custom action, so require the runtime.
+      Administrative extraction is allowed regardless of prerequisite state.
+    -->
+    <Property Id="VCREDIST_X64_INSTALLED">
+      <RegistrySearch
+        Id="FindVCRedistX64"
+        Root="HKLM"
+        Key="SOFTWARE\Microsoft\VisualStudio\14.0\VC\Runtimes\x64"
+        Name="Installed"
+        Type="raw"
+        Bitness="always64" />
+    </Property>
+    <Launch
+      Condition="Installed OR ACTION = &quot;ADMIN&quot; OR VCREDIST_X64_INSTALLED = &quot;#1&quot;"
+      Message="Microsoft Visual C++ 2015-2022 x64 Redistributable is required before installing ZoiteChat." />
+    <Launch
+      Condition="Installed OR ACTION = &quot;ADMIN&quot; OR VersionNT64 &gt; 601 OR (VersionNT64 = 601 AND ServicePackLevel &gt;= 1)"
+      Message="ZoiteChat requires 64-bit Windows 7 SP1 or later." />
+
+    <StandardDirectory Id="ProgramFiles6432Folder">
+      <Directory Id="INSTALLFOLDER" Name="ZoiteChat" />
+    </StandardDirectory>
+
+    <StandardDirectory Id="ProgramMenuFolder">
+      <Directory Id="ApplicationProgramsFolder" Name="ZoiteChat" />
+    </StandardDirectory>
+
+    <Feature Id="MainFeature" Title="ZoiteChat" Level="1">
+      <ComponentGroupRef Id="ApplicationFiles" />
+      <ComponentRef Id="StartMenuShortcuts" />
+      <ComponentRef Id="ProtocolAndThemeAssociations" />
+    </Feature>
+  </Package>
+
+  <Fragment>
+    <ComponentGroup Id="ApplicationFiles">
+      <Files Directory="INSTALLFOLDER" Include="$(SourceDir)\**">
+        <!-- Created by copy.vcxproj for Inno's optional portable task only. -->
+        <Exclude Files="$(SourceDir)\portable-mode" />
+        <!-- Inno custom-only application component. -->
+        <Exclude Files="$(SourceDir)\zoitechat-text.exe" />
+        <!--
+          Keep the bundled utility and scripting plugins, including Python
+          3.14 and 3.8 support, available to non-Inno installations.
+        -->
+      </Files>
+    </ComponentGroup>
+  </Fragment>
+
+  <Fragment>
+    <Component Id="StartMenuShortcuts" Directory="ApplicationProgramsFolder" Guid="*">
+      <Shortcut
+        Id="ZoiteChatShortcut"
+        Name="ZoiteChat"
+        Description="ZoiteChat IRC client"
+        Target="[INSTALLFOLDER]zoitechat.exe"
+        WorkingDirectory="INSTALLFOLDER"
+        Icon="ZoiteChat.ico">
+        <ShortcutProperty Key="System.AppUserModel.ID" Value="ZoiteChat.Desktop.Notify" />
+      </Shortcut>
+
+      <Shortcut
+        Id="ZoiteChatSafeModeShortcut"
+        Name="ZoiteChat Safe Mode"
+        Description="Start ZoiteChat without auto-connect or plugins"
+        Target="[INSTALLFOLDER]zoitechat.exe"
+        Arguments="--no-auto --no-plugins"
+        WorkingDirectory="INSTALLFOLDER"
+        Icon="ZoiteChat.ico" />
+
+      <Shortcut
+        Id="ZoiteChatChangelogShortcut"
+        Name="ZoiteChat ChangeLog"
+        Target="[INSTALLFOLDER]changelog.url" />
+
+      <Shortcut
+        Id="ZoiteChatReadmeShortcut"
+        Name="ZoiteChat ReadMe"
+        Target="[INSTALLFOLDER]readme.url" />
+
+      <Shortcut
+        Id="ZoiteChatUninstallShortcut"
+        Name="Uninstall ZoiteChat"
+        Target="[System64Folder]msiexec.exe"
+        Arguments="/x [ProductCode]" />
+
+      <RemoveFolder Id="RemoveApplicationProgramsFolder" On="uninstall" />
+      <RegistryValue
+        Root="HKLM"
+        Key="Software\ZoiteChat\Installer"
+        Name="StartMenuShortcuts"
+        Type="integer"
+        Value="1"
+        KeyPath="yes" />
+    </Component>
+  </Fragment>
+
+  <Fragment>
+    <Component Id="ProtocolAndThemeAssociations" Directory="INSTALLFOLDER" Guid="*">
+      <RegistryValue
+        Root="HKCR"
+        Key="irc"
+        Type="string"
+        Value="URL:IRC Protocol"
+        KeyPath="yes" />
+      <RegistryValue Root="HKCR" Key="irc" Name="URL Protocol" Type="string" Value="" />
+      <RegistryValue Root="HKCR" Key="irc\DefaultIcon" Type="string" Value="[INSTALLFOLDER]zoitechat.exe,0" />
+      <RegistryValue Root="HKCR" Key="irc\shell" Type="string" Value="open" />
+      <RegistryValue
+        Root="HKCR"
+        Key="irc\shell\open\command"
+        Type="string"
+        Value="&quot;[INSTALLFOLDER]zoitechat.exe&quot; --url=&quot;%1&quot;" />
+
+      <RegistryValue Root="HKCR" Key=".zct" Type="string" Value="ZoiteChat.Theme" />
+      <RegistryValue Root="HKCR" Key=".hct" Type="string" Value="ZoiteChat.Theme" />
+      <RegistryValue Root="HKCR" Key="ZoiteChat.Theme" Type="string" Value="ZoiteChat Theme" />
+      <RegistryValue
+        Root="HKCR"
+        Key="ZoiteChat.Theme\DefaultIcon"
+        Type="string"
+        Value="[INSTALLFOLDER]zoitechat.exe,0" />
+      <RegistryValue
+        Root="HKCR"
+        Key="ZoiteChat.Theme\shell\open\command"
+        Type="string"
+        Value="&quot;[INSTALLFOLDER]zoitechat.exe&quot; &quot;%1&quot;" />
+    </Component>
+  </Fragment>
+</Wix>