Files
PowerToys/src/modules/cmdpal/Microsoft.CmdPal.UI/Pages/ShellPage.xaml
Jiří Polášek 7b7bae2889 CmdPal: Enable loading local images in MarkdownContent (#41754)
Add a new image provider for `MarkdownTextBlock` that allows loading
images from additional sources:

- **file scheme**  
  - Enables loading images using the `file:` scheme.  
- Intentionally restricts file URIs to absolute paths to ensure correct
resolution when passed through the CmdPal extension/host boundary. (In
most cases, 3rd-party extensions will provide the paths, but the CmdPal
host performs the actual loading and would otherwise resolve paths
relative to itself.)

- **data scheme**  
- Enables loading images from URIs with the `data:` scheme (both Base64
and URL-encoded forms).
- Note: the Markdown control itself cannot handle large input and may
hang before the code introduced in this PR is invoked.

- **ms-appx scheme**  
  - This scheme is now supported for loading images.  
- However, since the Command Palette host performs the loading,
`ms-appx:` resolution applies to the host and not the extensions, which
limits its usefulness.

- **ms-appdata scheme**  
  - This scheme is now supported for loading images.  
- Similar to `ms-appx:`, resolution applies to the host, not the
extensions, limiting its usefulness.

---

Additionally, this PR introduces the concept of **_image source
hints_**, implemented as query string parameters piggy-backed on the
original URI.
These hints allow users to influence the behavior of images within
Markdown content.

- `--x-cmdpal-fit`
  - `none`: no automatic scaling, provides image as is (default)
  - `fit`: scale to fit the available space
- `--x-cmdpal-upscale`
  - `true`: allow upscaling
  - `false`: downscale only (default)
- `--x-cmdpal-width`: desired width in pixels
- `--x-cmdpal-height`: desired height in pixels
- `--x-cmdpal-maxwidth`: max width in pixels
- `--x-cmdpal-maxheight`: max height in pixels 

--- 

Since `MarkdownTextBlock` requires conforming to the `IImageProvider`
interface—which accepts only a raw URI and must return an `Image`
control—this PR also introduces a new class `RtbInlineImageFactory`.

The factory hooks into the root text block upon loading and listens for
events related to **layout** and **DPI changes**, ensuring that images
adapt correctly to the control’s environment.

```csharp
public interface IImageProvider
{
    Task<Image> GetImage(string url);
    bool ShouldUseThisProvider(string url);
}
```

---
Pictures? Videos!

Loading images from new schemes:


https://github.com/user-attachments/assets/e0f4308d-30b2-4c81-86db-353048c708c1

New image source scaling options:


https://github.com/user-attachments/assets/ec5b007d-3140-4f0a-b163-7b278233ad40


<!-- Enter a brief description/summary of your PR here. What does it
fix/what does it change/how was it tested (even manually, if necessary)?
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## Summary of the Pull Request

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## PR Checklist

- [x] Closes: #41752
- [ ] **Communication:** I've discussed this with core contributors
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- [ ] **Tests:** Added/updated and all pass
- [ ] **Localization:** All end-user-facing strings can be localized
- [ ] **Dev docs:** Added/updated
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for new binaries
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for new binaries and localization folder
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and link it here: #xxx

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---------

Co-authored-by: Michael Jolley <mike@baldbeardedbuilder.com>
2025-09-26 10:59:00 -05:00

524 lines
26 KiB
XML

<?xml version="1.0" encoding="utf-8" ?>
<Page
x:Class="Microsoft.CmdPal.UI.Pages.ShellPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:animations="using:CommunityToolkit.WinUI.Animations"
xmlns:cmdpalUI="using:Microsoft.CmdPal.UI"
xmlns:converters="using:CommunityToolkit.WinUI.Converters"
xmlns:coreViewModels="using:Microsoft.CmdPal.Core.ViewModels"
xmlns:cpcontrols="using:Microsoft.CmdPal.UI.Controls"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:help="using:Microsoft.CmdPal.UI.Helpers"
xmlns:labToolkit="using:CommunityToolkit.Labs.WinUI.MarkdownTextBlock"
xmlns:markdownImageProviders="using:Microsoft.CmdPal.UI.Helpers.MarkdownImageProviders"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:tkcontrols="using:CommunityToolkit.WinUI.Controls"
xmlns:toolkit="using:CommunityToolkit.WinUI.Controls"
xmlns:ui="using:CommunityToolkit.WinUI"
xmlns:viewModels="using:Microsoft.CmdPal.UI.ViewModels"
Background="Transparent"
mc:Ignorable="d">
<Page.Resources>
<ResourceDictionary>
<converters:StringVisibilityConverter
x:Key="StringNotEmptyToVisibilityConverter"
EmptyValue="Collapsed"
NotEmptyValue="Visible" />
<converters:BoolNegationConverter x:Key="BoolNegationConverter" />
<cmdpalUI:MessageStateToSeverityConverter x:Key="MessageStateToSeverityConverter" />
<cmdpalUI:DetailsDataTemplateSelector
x:Key="DetailsDataTemplateSelector"
CommandTemplate="{StaticResource DetailsCommandsTemplate}"
LinkTemplate="{StaticResource DetailsLinkTemplate}"
SeparatorTemplate="{StaticResource DetailsSeparatorTemplate}"
TagTemplate="{StaticResource DetailsTagsTemplate}" />
<converters:BoolToVisibilityConverter
x:Key="BoolToInvertedVisibilityConverter"
FalseValue="Visible"
TrueValue="Collapsed" />
<DataTemplate x:Key="TagTemplate" x:DataType="coreViewModels:TagViewModel">
<cpcontrols:Tag
HorizontalAlignment="Left"
AutomationProperties.Name="{x:Bind Text, Mode=OneWay}"
BackgroundColor="{x:Bind Background, Mode=OneWay}"
FontSize="12"
ForegroundColor="{x:Bind Foreground, Mode=OneWay}"
Icon="{x:Bind Icon, Mode=OneWay}"
Text="{x:Bind Text, Mode=OneWay}"
ToolTipService.ToolTip="{x:Bind ToolTip, Mode=OneWay}" />
</DataTemplate>
<DataTemplate x:Key="CommandTemplate" x:DataType="coreViewModels:CommandViewModel">
<StackPanel Orientation="Vertical">
<Button
Name="Command"
HorizontalAlignment="Stretch"
HorizontalContentAlignment="Left"
Click="Command_Click"
Style="{StaticResource SubtleButtonStyle}">
<StackPanel VerticalAlignment="Center" Orientation="Horizontal">
<cpcontrols:IconBox
Width="16"
Height="16"
Margin="0,3,8,0"
SourceKey="{x:Bind Icon, Mode=OneWay}"
SourceRequested="{x:Bind help:IconCacheProvider.SourceRequested}" />
<TextBlock Text="{x:Bind Name}" />
</StackPanel>
</Button>
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="DetailsLinkTemplate" x:DataType="coreViewModels:DetailsLinkViewModel">
<StackPanel Orientation="Vertical">
<TextBlock
IsTextSelectionEnabled="True"
Text="{x:Bind Key, Mode=OneWay}"
TextWrapping="WrapWholeWords" />
<TextBlock
FontSize="12"
Foreground="{ThemeResource TextFillColorSecondaryBrush}"
IsTextSelectionEnabled="True"
Text="{x:Bind Text, Mode=OneWay}"
TextWrapping="WrapWholeWords"
Visibility="{x:Bind IsText, Mode=OneWay}" />
<HyperlinkButton
Padding="0"
Content="{x:Bind Text, Mode=OneWay}"
FontSize="12"
NavigateUri="{x:Bind Link, Mode=OneWay}"
Visibility="{x:Bind IsLink, Mode=OneWay}" />
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="DetailsCommandsTemplate" x:DataType="coreViewModels:DetailsCommandsViewModel">
<StackPanel Orientation="Vertical" Spacing="4">
<TextBlock
IsTextSelectionEnabled="True"
Text="{x:Bind Key, Mode=OneWay}"
TextWrapping="WrapWholeWords" />
<ItemsControl
ItemTemplate="{StaticResource CommandTemplate}"
ItemsSource="{x:Bind Commands, Mode=OneWay}"
Visibility="{x:Bind HasCommands, Mode=OneWay}" />
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="DetailsSeparatorTemplate" x:DataType="coreViewModels:DetailsSeparatorViewModel">
<StackPanel Margin="0,8,8,0" Orientation="Vertical">
<Border
Margin="8,0,0,0"
BorderBrush="{ThemeResource TextFillColorSecondaryBrush}"
BorderThickness="0,0,0,2">
<TextBlock
Margin="-8,0,0,8"
FontWeight="SemiBold"
IsTextSelectionEnabled="True"
Text="{x:Bind Key, Mode=OneWay}"
TextWrapping="WrapWholeWords" />
</Border>
</StackPanel>
</DataTemplate>
<DataTemplate x:Key="DetailsTagsTemplate" x:DataType="coreViewModels:DetailsTagsViewModel">
<StackPanel Orientation="Vertical" Spacing="4">
<TextBlock
IsTextSelectionEnabled="True"
Text="{x:Bind Key, Mode=OneWay}"
TextWrapping="WrapWholeWords" />
<ItemsControl
ItemTemplate="{StaticResource TagTemplate}"
ItemsSource="{x:Bind Tags, Mode=OneWay}"
Visibility="{x:Bind HasTags, Mode=OneWay}">
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<toolkit:WrapPanel
x:Name="TagsWrapPanel"
MinWidth="0"
Padding="0"
HorizontalSpacing="4"
Orientation="Horizontal"
VerticalSpacing="4" />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
</StackPanel>
</DataTemplate>
<tkcontrols:MarkdownThemes
x:Key="DefaultMarkdownThemeConfig"
H3FontSize="12"
H3FontWeight="Normal" />
<markdownImageProviders:ImageProvider x:Key="ImageProvider" />
<tkcontrols:MarkdownConfig
x:Key="DefaultMarkdownConfig"
ImageProvider="{StaticResource ImageProvider}"
Themes="{StaticResource DefaultMarkdownThemeConfig}" />
</ResourceDictionary>
</Page.Resources>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid Background="{ThemeResource LayerOnAcrylicPrimaryBackgroundBrush}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<!-- Back button and search box -->
<Grid
Padding="0,12,0,12"
HorizontalAlignment="Stretch"
VerticalAlignment="Stretch">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<!-- Back button -->
<StackPanel Orientation="Horizontal">
<Image
Width="20"
Margin="20,0,6,0"
HorizontalAlignment="Center"
ui:VisualExtensions.NormalizedCenterPoint="0.5,0.5"
AutomationProperties.AccessibilityView="Raw"
Source="ms-appx:///Assets/icon.svg"
Visibility="{x:Bind ViewModel.CurrentPage.IsNested, Mode=OneWay, Converter={StaticResource BoolToInvertedVisibilityConverter}}">
<animations:Implicit.ShowAnimations>
<animations:OpacityAnimation
EasingMode="EaseIn"
EasingType="Cubic"
From="0"
To="1.0"
Duration="0:0:0.187" />
<animations:ScaleAnimation
EasingMode="EaseIn"
EasingType="Cubic"
From="0.5"
To="1"
Duration="0:0:0.187" />
</animations:Implicit.ShowAnimations>
<animations:Implicit.HideAnimations>
<animations:OpacityAnimation
EasingMode="EaseOut"
EasingType="Cubic"
From="1.0"
To="0"
Duration="0:0:0.187" />
<animations:ScaleAnimation
EasingMode="EaseOut"
EasingType="Cubic"
From="1"
To="0.5"
Duration="0:0:0.187" />
</animations:Implicit.HideAnimations>
</Image>
<Button
x:Name="BackButton"
x:Uid="BackButton"
Margin="4,0,4,0"
Padding="4"
HorizontalAlignment="Center"
VerticalAlignment="Center"
ui:VisualExtensions.NormalizedCenterPoint="0.5,0.5"
Click="BackButton_Clicked"
Content="{ui:FontIcon Glyph=&#xE76B;,
FontSize=14}"
FontSize="16"
Style="{StaticResource SubtleButtonStyle}"
Visibility="{x:Bind ViewModel.CurrentPage.IsNested, Mode=OneWay}">
<animations:Implicit.ShowAnimations>
<animations:OpacityAnimation
EasingMode="EaseIn"
EasingType="Cubic"
From="0"
To="1.0"
Duration="0:0:0.333" />
<animations:ScaleAnimation
From="0.5"
To="1"
Duration="0:0:0.333" />
<animations:TranslationAnimation
From="16,0,0"
To="0,0,0"
Duration="0:0:0.333" />
</animations:Implicit.ShowAnimations>
<animations:Implicit.HideAnimations>
<animations:OpacityAnimation
EasingMode="EaseOut"
EasingType="Cubic"
From="1.0"
To="0"
Duration="0:0:0.333" />
<animations:ScaleAnimation
EasingMode="EaseOut"
EasingType="Cubic"
From="1"
To="0.5"
Duration="0:0:0.333" />
<animations:TranslationAnimation
EasingMode="EaseOut"
EasingType="Cubic"
From="0,0,0"
To="16,0,0"
Duration="0:0:0.187" />
</animations:Implicit.HideAnimations>
</Button>
<cpcontrols:IconBox
Grid.Column="1"
Width="20"
Margin="4,0,4,0"
VerticalAlignment="Center"
ui:VisualExtensions.NormalizedCenterPoint="0.5,0.5"
Foreground="{ThemeResource TextFillColorSecondaryBrush}"
SourceKey="{x:Bind ViewModel.CurrentPage.Icon, Mode=OneWay}"
SourceRequested="{x:Bind help:IconCacheProvider.SourceRequested}"
Visibility="{x:Bind ViewModel.CurrentPage.IsNested, Mode=OneWay}">
<animations:Implicit.ShowAnimations>
<animations:OpacityAnimation
From="0"
To="1.0"
Duration="0:0:0.333" />
<animations:ScaleAnimation
From="0.8"
To="1"
Duration="0:0:0.333" />
<animations:TranslationAnimation
From="8,0,0"
To="0,0,0"
Duration="0:0:0.187" />
</animations:Implicit.ShowAnimations>
<animations:Implicit.HideAnimations>
<animations:OpacityAnimation
From="1.0"
To="0"
Duration="0:0:0.333" />
<animations:ScaleAnimation
From="1"
To="0.8"
Duration="0:0:0.333" />
<animations:TranslationAnimation
From="0,0,0"
To="8,0,0"
Duration="0:0:0.187" />
</animations:Implicit.HideAnimations>
</cpcontrols:IconBox>
</StackPanel>
<!-- Search box: wrapped in a grid to enable RepositionThemeTransitions -->
<Grid Grid.Column="1" HorizontalAlignment="Stretch">
<cpcontrols:SearchBar
x:Name="SearchBox"
HorizontalAlignment="Stretch"
CurrentPageViewModel="{x:Bind ViewModel.CurrentPage, Mode=OneWay}" />
<Grid.Transitions>
<TransitionCollection>
<RepositionThemeTransition />
</TransitionCollection>
</Grid.Transitions>
</Grid>
<!-- Filter: wrapped in a grid to enable RepositionThemeTransitions -->
<Grid Grid.Column="2" HorizontalAlignment="Right">
<cpcontrols:FiltersDropDown
x:Name="FiltersDropDown"
HorizontalAlignment="Right"
CurrentPageViewModel="{x:Bind ViewModel.CurrentPage, Mode=OneWay}" />
</Grid>
</Grid>
<ProgressBar
Grid.ColumnSpan="2"
VerticalAlignment="Bottom"
IsIndeterminate="True"
Visibility="{x:Bind ViewModel.CurrentPage.IsLoading, Mode=OneWay}">
<animations:Implicit.ShowAnimations>
<animations:OpacityAnimation
From="0"
To="1.0"
Duration="0:0:0.333" />
</animations:Implicit.ShowAnimations>
<animations:Implicit.HideAnimations>
<animations:OpacityAnimation
From="1.0"
To="0"
Duration="0:0:0.333" />
</animations:Implicit.HideAnimations>
</ProgressBar>
<Grid
x:Name="ContentGrid"
Grid.Row="1"
BorderBrush="{ThemeResource DividerStrokeColorDefaultBrush}"
BorderThickness="0,1,0,1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="3*" />
<ColumnDefinition x:Name="DetailsColumn" Width="Auto" />
</Grid.ColumnDefinitions>
<Frame
Name="RootFrame"
IsNavigationStackEnabled="True"
Navigated="RootFrame_Navigated" />
<ScrollViewer
x:Name="DetailsContent"
Grid.Column="1"
Margin="4"
HorizontalAlignment="Stretch"
ui:VisualExtensions.NormalizedCenterPoint="0.5,0.5"
Background="{ThemeResource CardBackgroundFillColorDefaultBrush}"
BorderBrush="{ThemeResource DividerStrokeColorDefaultBrush}"
BorderThickness="1"
CornerRadius="{StaticResource ControlCornerRadius}"
Visibility="Collapsed">
<animations:Implicit.ShowAnimations>
<animations:OpacityAnimation
From="0"
To="1.0"
Duration="0:0:0.187" />
<animations:TranslationAnimation
From="24,0,0"
To="0,0,0"
Duration="0:0:0.187" />
</animations:Implicit.ShowAnimations>
<animations:Implicit.HideAnimations>
<animations:OpacityAnimation
From="1.0"
To="0"
Duration="0:0:0.187" />
<animations:TranslationAnimation
From="0,0,0"
To="24,0,0"
Duration="0:0:0.187" />
</animations:Implicit.HideAnimations>
<Grid Margin="16">
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<cpcontrols:IconBox
x:Name="HeroImageBorder"
Width="64"
Margin="0,0,16,16"
HorizontalAlignment="Left"
AutomationProperties.AccessibilityView="Raw"
SourceKey="{x:Bind ViewModel.Details.HeroImage, Mode=OneWay}"
SourceRequested="{x:Bind help:IconCacheProvider.SourceRequested}"
Visibility="{x:Bind HasHeroImage, Mode=OneWay}" />
<TextBlock
Grid.Row="1"
FontSize="18"
FontWeight="SemiBold"
Text="{x:Bind ViewModel.Details.Title, Mode=OneWay}"
TextWrapping="WrapWholeWords"
Visibility="{x:Bind ViewModel.Details.Title, Converter={StaticResource StringNotEmptyToVisibilityConverter}, Mode=OneWay}" />
<tkcontrols:MarkdownTextBlock
Grid.Row="2"
Margin="0,4,0,24"
Background="Transparent"
Config="{StaticResource DefaultMarkdownConfig}"
Text="{x:Bind ViewModel.Details.Body, Mode=OneWay}"
UseEmphasisExtras="True"
UsePipeTables="True" />
<ItemsRepeater
Grid.Row="3"
ItemTemplate="{StaticResource DetailsDataTemplateSelector}"
ItemsSource="{x:Bind ViewModel.Details.Metadata, Mode=OneWay}">
<ItemsRepeater.Layout>
<StackLayout Spacing="12" />
</ItemsRepeater.Layout>
</ItemsRepeater>
</Grid>
</ScrollViewer>
<!-- /DetailsContent -->
</Grid>
<ScrollView
Grid.Row="2"
Grid.ColumnSpan="2"
MaxHeight="120"
Background="{ThemeResource SystemControlErrorBackgroundColor}"
BorderBrush="{ThemeResource SystemControlErrorTextForegroundBrush}"
BorderThickness="0,1,0,1"
CornerRadius="0"
Visibility="{x:Bind ViewModel.CurrentPage.ErrorMessage, Converter={StaticResource StringNotEmptyToVisibilityConverter}, Mode=OneWay}">
<TextBlock Margin="16,8,16,16" IsTextSelectionEnabled="True">
<Run
FontWeight="SemiBold"
Foreground="{ThemeResource SystemErrorTextColor}"
Text="Error(s) on page:" />
<LineBreak /><Run Text="{x:Bind ViewModel.CurrentPage.ErrorMessage, Mode=OneWay}" />
</TextBlock>
</ScrollView>
</Grid>
<!--
Horrifying: You may ask yourself - why is there a Background on this InfoBar?
Well, as it turns out, the Informational InfoBar has a transparent
background. It just cannot be bothered. So, we need to manually give
it one to actually obscure the text beneath it. And you can't just give
the InfoBar itself a Background, because then the other Severity's
won't get colorized.
See https://github.com/microsoft/microsoft-ui-xaml/issues/5741
-->
<StackPanel
Grid.Row="0"
Margin="16,8,16,8"
HorizontalAlignment="Stretch"
VerticalAlignment="Bottom"
Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
CornerRadius="{ThemeResource ControlCornerRadius}">
<InfoBar
CornerRadius="{ThemeResource ControlCornerRadius}"
IsOpen="{x:Bind ViewModel.CurrentPage.HasStatusMessage, Mode=OneWay}"
Message="{x:Bind ViewModel.CurrentPage.MostRecentStatusMessage.Message, Mode=OneWay}"
Severity="{x:Bind ViewModel.CurrentPage.MostRecentStatusMessage.State, Mode=OneWay, Converter={StaticResource MessageStateToSeverityConverter}}">
<InfoBar.Content>
<ProgressBar
Margin="0,-20,0,0"
IsIndeterminate="{x:Bind ViewModel.CurrentPage.MostRecentStatusMessage.Progress.IsIndeterminate, Mode=OneWay}"
Visibility="{x:Bind ViewModel.CurrentPage.MostRecentStatusMessage.HasProgress, Mode=OneWay}"
Value="{x:Bind ViewModel.CurrentPage.MostRecentStatusMessage.Progress.ProgressPercent, Mode=OneWay}" />
<!-- Margin="0,0,0,6" MaxWidth="200"/> -->
</InfoBar.Content>
</InfoBar>
</StackPanel>
<Grid Grid.Row="1" Background="{ThemeResource LayerOnAcrylicSecondaryBackgroundBrush}">
<cpcontrols:CommandBar CurrentPageViewModel="{x:Bind ViewModel.CurrentPage, Mode=OneWay}" />
</Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup>
<VisualState x:Name="DetailsCollapsed" />
<VisualState x:Name="DetailsVisible">
<VisualState.StateTriggers>
<StateTrigger IsActive="{x:Bind ViewModel.IsDetailsVisible, Mode=OneWay}" />
</VisualState.StateTriggers>
<VisualState.Setters>
<Setter Target="DetailsContent.Visibility" Value="Visible" />
<Setter Target="DetailsColumn.Width" Value="2*" />
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</Grid>
</Page>