feat: support clear.
This commit is contained in:
rabbitism
@@ -8,7 +8,8 @@
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x:DataType="vm:MultiComboBoxDemoViewModel"
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x:CompileBindings="True"
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x:Class="Ursa.Demo.Pages.MultiComboBoxDemo">
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<StackPanel>
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<u:MultiComboBox ItemsSource="{Binding Items}"/>
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<StackPanel Orientation="Horizontal">
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<u:MultiComboBox Classes="ClearButton" Name="combo" ItemsSource="{Binding Items}"/>
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<ListBox ItemsSource="{Binding #combo.SelectedItems}"/>
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</StackPanel>
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</UserControl>
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@@ -5,65 +5,160 @@
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<!-- Add Resources Here -->
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<ControlTheme x:Key="{x:Type u:MultiComboBox}" TargetType="u:MultiComboBox">
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<Setter Property="Focusable" Value="True" />
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<Setter Property="VerticalAlignment" Value="Top"/>
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<Setter Property="Background" Value="{DynamicResource ComboBoxSelectorBackground}" />
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<Setter Property="CornerRadius" Value="{DynamicResource ComboBoxSelectorCornerRadius}" />
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<Setter Property="BorderBrush" Value="Transparent" />
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<Setter Property="HorizontalAlignment" Value="Left" />
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<Setter Property="Width" Value="300" />
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<Setter Property="MaxDropdownHeight" Value="300" />
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<Setter Property="MinHeight" Value="32" />
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<Setter Property="Padding" Value="12 4" />
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<Setter Property="BorderThickness" Value="1" />
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<Setter Property="Template">
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<ControlTemplate TargetType="u:MultiComboBox">
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<Panel>
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<Border
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HorizontalAlignment="Stretch"
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VerticalAlignment="Stretch"
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Background="Transparent"
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BorderBrush="{DynamicResource SemiGrey2}"
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BorderThickness="1">
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<Grid Name="PART_RootGrid" ColumnDefinitions="*, Auto, 32">
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<Border
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Name="{x:Static u:MultiComboBox.PART_BackgroundBorder}"
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Grid.Column="0"
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Grid.ColumnSpan="3"
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Background="Transparent" />
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<u:MultiComboBoxSelectedItemList
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Grid.Column="0"
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ItemsSource="{TemplateBinding SelectedItems}"
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RemoveCommand="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Remove}">
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<ItemsControl.ItemsPanel>
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<ItemsPanelTemplate>
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<WrapPanel Orientation="Horizontal" />
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</ItemsPanelTemplate>
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</ItemsControl.ItemsPanel>
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</u:MultiComboBoxSelectedItemList>
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<PathIcon
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x:Name="DropDownGlyph"
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Grid.Column="2"
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Width="12"
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Height="12"
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Margin="0,0,10,0"
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HorizontalAlignment="Right"
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VerticalAlignment="Center"
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Data="{DynamicResource ComboBoxIcon}"
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Foreground="{DynamicResource ComboBoxIconDefaultForeground}"
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IsHitTestVisible="False"
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UseLayoutRounding="False" />
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</Grid>
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</Border>
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<Popup
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Width="{Binding #PART_RootGrid.Bounds.Width}"
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MaxHeight="{TemplateBinding MaxDropdownHeight}"
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IsLightDismissEnabled="True"
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IsOpen="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=IsDropDownOpen, Mode=TwoWay}"
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PlacementTarget="PART_RootGrid">
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<Border Theme="{DynamicResource CardBorder}">
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<ScrollViewer>
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<ItemsPresenter HorizontalAlignment="Stretch" ItemsPanel="{TemplateBinding ItemsPanel}" />
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</ScrollViewer>
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<DataValidationErrors>
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<Panel>
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<Border
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HorizontalAlignment="Stretch"
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VerticalAlignment="Stretch"
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Background="{TemplateBinding Background}"
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BorderBrush="{TemplateBinding BorderBrush}"
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BorderThickness="{TemplateBinding BorderThickness}"
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CornerRadius="{TemplateBinding CornerRadius}">
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<Grid Name="PART_RootGrid" ColumnDefinitions="*, Auto, 32">
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<Border
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Name="{x:Static u:MultiComboBox.PART_BackgroundBorder}"
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Grid.Column="0"
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Grid.ColumnSpan="3"
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Background="Transparent" />
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<u:MultiComboBoxSelectedItemList
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Grid.Column="0"
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VerticalAlignment="Center"
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ItemsSource="{TemplateBinding SelectedItems}"
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RemoveCommand="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Remove}">
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<ItemsControl.ItemsPanel>
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<ItemsPanelTemplate>
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<WrapPanel Orientation="Horizontal" />
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</ItemsPanelTemplate>
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</ItemsControl.ItemsPanel>
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</u:MultiComboBoxSelectedItemList>
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<Button
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Name="ClearButton"
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Grid.Column="1"
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Command="{Binding $parent[u:MultiComboBox].Clear}"
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Content="{DynamicResource IconButtonClearData}"
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IsVisible="False"
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Theme="{DynamicResource InnerIconButton}" />
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<PathIcon
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x:Name="DropDownGlyph"
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Grid.Column="2"
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Width="12"
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Height="12"
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Margin="0,0,10,0"
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HorizontalAlignment="Right"
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VerticalAlignment="Center"
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Data="{DynamicResource ComboBoxIcon}"
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Foreground="{DynamicResource ComboBoxIconDefaultForeground}"
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IsHitTestVisible="False"
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UseLayoutRounding="False" />
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</Grid>
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</Border>
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</Popup>
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</Panel>
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<Popup
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Width="{Binding #PART_RootGrid.Bounds.Width}"
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MaxHeight="{TemplateBinding MaxDropdownHeight}"
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IsLightDismissEnabled="True"
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IsOpen="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=IsDropDownOpen, Mode=TwoWay}"
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PlacementTarget="PART_RootGrid">
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<Border
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Margin="0,4"
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HorizontalAlignment="Stretch"
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Background="{DynamicResource ComboBoxPopupBackground}"
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BorderBrush="{DynamicResource ComboBoxPopupBorderBrush}"
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BorderThickness="{DynamicResource ComboBoxPopupBorderThickness}"
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BoxShadow="{DynamicResource ComboBoxPopupBoxShadow}"
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ClipToBounds="True"
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CornerRadius="6">
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<ScrollViewer Grid.IsSharedSizeScope="True" HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}" VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}">
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<ItemsPresenter
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Name="PART_ItemsPresenter"
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Margin="{DynamicResource ComboBoxDropdownContentMargin}"
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HorizontalAlignment="Stretch"
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ItemsPanel="{TemplateBinding ItemsPanel}" />
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</ScrollViewer>
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</Border>
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</Popup>
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</Panel>
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</DataValidationErrors>
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</ControlTemplate>
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</Setter>
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<Style Selector="^.Large">
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<Setter Property="MinHeight" Value="{DynamicResource ComboBoxLargeHeight}" />
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</Style>
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<Style Selector="^.Small">
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<Setter Property="MinHeight" Value="{DynamicResource ComboBoxSmallHeight}" />
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</Style>
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<Style Selector="^.clearButton, ^.ClearButton">
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<Style Selector="^:pointerover:not(:selection-empty) /template/ Button#ClearButton">
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<Setter Property="IsVisible" Value="{Binding $parent[ComboBox].SelectionBoxItem, Converter={x:Static ObjectConverters.IsNotNull}}" />
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</Style>
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</Style>
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<!-- Pointerover State -->
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<Style Selector="^:pointerover">
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<Setter Property="Background" Value="{DynamicResource ComboBoxSelectorPointeroverBackground}" />
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<Setter Property="BorderBrush" Value="{DynamicResource ComboBoxSelectorPointeroverBorderBrush}" />
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</Style>
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<Style Selector="^:pointerover /template/ PathIcon#DropDownGlyph">
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<Setter Property="Foreground" Value="{DynamicResource ComboBoxIconPointeroverForeground}" />
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</Style>
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<!-- Pressed State -->
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<Style Selector="^:pressed">
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<Setter Property="Background" Value="{DynamicResource ComboBoxSelectorPressedBackground}" />
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<Setter Property="BorderBrush" Value="{DynamicResource ComboBoxSelectorPressedBorderBrush}" />
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<Style Selector="^ /template/ PathIcon#DropDownGlyph">
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<Setter Property="Foreground" Value="{DynamicResource ComboBoxIconPressedForeground}" />
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</Style>
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</Style>
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<Style Selector="^:dropdownopen">
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<Setter Property="BorderBrush" Value="{DynamicResource ComboBoxSelectorPressedBorderBrush}" />
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</Style>
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<!-- Disabled State -->
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<Style Selector="^:disabled">
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<Setter Property="Background" Value="{DynamicResource ComboBoxSelectorDisabledBackground}" />
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<Style Selector="^ /template/ ContentControl#ContentPresenter">
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<Setter Property="Foreground" Value="{DynamicResource ComboBoxDisabledForeground}" />
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</Style>
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<Style Selector="^ /template/ TextBlock#PlaceholderTextBlock">
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<Setter Property="Foreground" Value="{DynamicResource ComboBoxDisabledForeground}" />
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</Style>
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<Style Selector="^ /template/ PathIcon#DropDownGlyph">
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<Setter Property="Foreground" Value="{DynamicResource ComboBoxIconDisabledForeground}" />
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</Style>
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</Style>
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<!-- Error State -->
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<Style Selector="^:error">
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<Style Selector="^ /template/ Border#Background">
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<Setter Property="Background" Value="{DynamicResource DataValidationErrorsBackground}" />
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</Style>
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<Style Selector="^:pointerover /template/ Border#Background">
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<Setter Property="Background" Value="{DynamicResource DataValidationErrorsPointerOverBackground}" />
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<Setter Property="BorderBrush" Value="Transparent" />
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</Style>
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<Style Selector="^:pressed /template/ Border#Background">
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<Setter Property="Background" Value="{DynamicResource DataValidationErrorsPressedBackground}" />
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<Setter Property="BorderBrush" Value="Transparent" />
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</Style>
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<Style Selector="^:focus /template/ Border#Background">
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<Setter Property="Background" Value="{DynamicResource DataValidationErrorsSelectedBackground}" />
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<Setter Property="BorderBrush" Value="{DynamicResource DataValidationErrorsSelectedBorderBrush}" />
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</Style>
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</Style>
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</ControlTheme>
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<ControlTheme x:Key="{x:Type u:MultiComboBoxItem}" TargetType="u:MultiComboBoxItem">
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@@ -87,26 +182,17 @@
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BorderBrush="{TemplateBinding BorderBrush}"
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BorderThickness="{TemplateBinding BorderThickness}"
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CornerRadius="{TemplateBinding CornerRadius}">
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<Grid x:Name="RootGrid" ColumnDefinitions="Auto,*">
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<Grid
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<Grid x:Name="RootGrid" ColumnDefinitions="Auto, *">
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<PathIcon
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Name="CheckGlyph"
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Grid.Column="0"
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Margin="0,0,0,0"
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VerticalAlignment="Center">
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<Border
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x:Name="NormalRectangle"
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Width="{DynamicResource ListBoxItemCheckBoxWidth}"
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Height="{DynamicResource ListBoxItemCheckBoxHeight}"
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Background="{DynamicResource ListBoxItemCheckDefaultBackground}"
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BorderBrush="{DynamicResource ListBoxItemCheckDefaultBorderBrush}"
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BorderThickness="{DynamicResource ListBoxItemCheckBoxBorderThickness}"
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CornerRadius="{TemplateBinding CornerRadius}"
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UseLayoutRounding="False" />
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<PathIcon
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Name="CheckGlyph"
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Width="{DynamicResource ListBoxItemCheckBoxGlyphWidth}"
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Height="{DynamicResource ListBoxItemCheckBoxGlyphHeight}"
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Foreground="{DynamicResource ListBoxItemCheckGlyphFill}" />
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</Grid>
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VerticalAlignment="Center"
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Opacity="0"
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Data="{DynamicResource ListBoxItemCheckCheckGlyph}"
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Width="{DynamicResource ListBoxItemCheckBoxGlyphWidth}"
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Height="{DynamicResource ListBoxItemCheckBoxGlyphHeight}"
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Margin="8,0"
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/>
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<ContentPresenter
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x:Name="ContentPresenter"
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Grid.Column="1"
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@@ -123,75 +209,28 @@
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</Border>
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</ControlTemplate>
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</Setter>
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<!-- Unchecked Pointerover State -->
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<Style Selector="^:pointerover">
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<Style Selector="^ /template/ Border#NormalRectangle">
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<Setter Property="BorderBrush" Value="{DynamicResource ListBoxItemCheckPointeroverBorderBrush}" />
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<Setter Property="Background" Value="{DynamicResource ListBoxItemCheckPointeroverBackground}" />
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</Style>
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</Style>
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<!-- Unchecked Pressed State -->
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<Style Selector="^:pressed">
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<Style Selector="^ /template/ Border#NormalRectangle">
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<Setter Property="BorderBrush" Value="{DynamicResource ListBoxItemCheckPressedBorderBrush}" />
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<Setter Property="Background" Value="{DynamicResource ListBoxItemCheckPressedBackground}" />
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</Style>
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</Style>
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<!-- Unchecked Disabled state -->
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<Style Selector="^:disabled">
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<Style Selector="^ /template/ ContentPresenter#ContentPresenter">
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<Setter Property="Foreground" Value="{DynamicResource ListBoxItemCheckDisabledForeground}" />
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</Style>
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<Style Selector="^ /template/ Border#NormalRectangle">
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<Setter Property="BorderBrush" Value="{DynamicResource ListBoxItemCheckDefaultDisabledBorderBrush}" />
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<Setter Property="Background" Value="{DynamicResource ListBoxItemCheckDefaultDisabledBackground}" />
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<Setter Property="Foreground" Value="{DynamicResource ListBoxItemDisabledForeground}" />
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<Setter Property="Background" Value="{DynamicResource ListBoxItemDisabledBackground}" />
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<Style Selector="^:selected">
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<Setter Property="Background"
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Value="{DynamicResource ListBoxItemSelectedDisabledBackground}" />
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</Style>
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</Style>
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<Style Selector="^:selected">
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<Style Selector="^ /template/ Border#NormalRectangle">
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<Setter Property="BorderBrush" Value="{DynamicResource ListBoxItemCheckCheckedDefaultBorderBrush}" />
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<Setter Property="Background" Value="{DynamicResource ListBoxItemCheckCheckedDefaultBackground}" />
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</Style>
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<!-- Pointerover State -->
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<Style Selector="^:pointerover">
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<Setter Property="Background" Value="{DynamicResource ListBoxItemPointeroverBackground}" />
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</Style>
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<Style Selector="^ /template/ PathIcon#CheckGlyph">
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<Setter Property="Data" Value="{DynamicResource ListBoxItemCheckCheckGlyph}" />
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<Setter Property="Opacity" Value="1" />
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</Style>
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<!-- Pressed State -->
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<Style Selector="^:pressed">
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<Setter Property="Background" Value="{DynamicResource ListBoxItemPressedBackground}" />
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</Style>
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<!-- Checked Pointerover State -->
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<Style Selector="^:pointerover">
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<Style Selector="^ /template/ Border#NormalRectangle">
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<Setter Property="BorderBrush" Value="{DynamicResource ListBoxItemCheckCheckedPointeroverBorderBrush}" />
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<Setter Property="Background" Value="{DynamicResource ListBoxItemCheckCheckedPointeroverBackground}" />
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</Style>
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</Style>
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<!-- Checked Pressed State -->
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<Style Selector="^:pressed">
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<Style Selector="^ /template/ Border#NormalRectangle">
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<Setter Property="BorderBrush" Value="{DynamicResource ListBoxItemCheckCheckedPressedBorderBrush}" />
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<Setter Property="Background" Value="{DynamicResource ListBoxItemCheckCheckedPressedBackground}" />
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</Style>
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</Style>
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<!-- Checked Disabled State -->
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<Style Selector="^:disabled">
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<Style Selector="^ /template/ ContentPresenter#ContentPresenter">
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<Setter Property="Foreground" Value="{DynamicResource ListBoxItemCheckDisabledForeground}" />
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</Style>
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<Style Selector="^ /template/ Border#NormalRectangle">
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<Setter Property="BorderBrush" Value="{DynamicResource ListBoxItemCheckCheckedDisabledBorderBrush}" />
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<Setter Property="Background" Value="{DynamicResource ListBoxItemCheckCheckedDisabledBackground}" />
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</Style>
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<Style Selector="^ /template/ Path#CheckGlyph">
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<Setter Property="Fill" Value="{DynamicResource ListBoxItemCheckGlyphDisabledFill}" />
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</Style>
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</Style>
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<!-- Selected State -->
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<Style Selector="^:selected /template/ PathIcon#CheckGlyph">
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<Setter Property="Opacity" Value="1"></Setter>
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</Style>
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</ControlTheme>
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@@ -1,5 +1,4 @@
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using System.Collections;
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using System.Collections.ObjectModel;
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using System.Collections.Specialized;
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using Avalonia;
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using Avalonia.Collections;
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@@ -9,14 +8,19 @@ using Avalonia.Controls.Primitives;
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using Avalonia.Controls.Templates;
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using Avalonia.Input;
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using Avalonia.Interactivity;
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using Avalonia.LogicalTree;
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using Irihi.Avalonia.Shared.Helpers;
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namespace Ursa.Controls;
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[TemplatePart(PART_BackgroundBorder, typeof(Border))]
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[PseudoClasses(PC_DropDownOpen, PC_Empty)]
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public class MultiComboBox: SelectingItemsControl
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{
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public const string PART_BackgroundBorder = "PART_BackgroundBorder";
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public const string PC_DropDownOpen = ":dropdownopen";
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public const string PC_Empty = ":selection-empty";
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private Border? _rootBorder;
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private static ITemplate<Panel?> _defaultPanel = new FuncTemplate<Panel?>(() => new VirtualizingStackPanel());
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@@ -52,6 +56,33 @@ public class MultiComboBox: SelectingItemsControl
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{
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FocusableProperty.OverrideDefaultValue<MultiComboBox>(true);
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ItemsPanelProperty.OverrideDefaultValue<MultiComboBox>(_defaultPanel);
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IsDropDownOpenProperty.AffectsPseudoClass<MultiComboBox>(PC_DropDownOpen);
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SelectedItemsProperty.Changed.AddClassHandler<MultiComboBox, IList?>((box, args) => box.OnSelectedItemsChanged(args));
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}
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public MultiComboBox()
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{
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if (SelectedItems is INotifyCollectionChanged c)
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{
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c.CollectionChanged+=OnSelectedItemsCollectionChanged;
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}
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}
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private void OnSelectedItemsChanged(AvaloniaPropertyChangedEventArgs<IList?> args)
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{
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if (args.OldValue.Value is INotifyCollectionChanged old)
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{
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old.CollectionChanged-=OnSelectedItemsCollectionChanged;
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}
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if (args.NewValue.Value is INotifyCollectionChanged @new)
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{
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@new.CollectionChanged += OnSelectedItemsCollectionChanged;
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}
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}
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private void OnSelectedItemsCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
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{
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PseudoClasses.Set(PC_Empty, SelectedItems?.Count == 0);
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}
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protected override bool NeedsContainerOverride(object? item, int index, out object? recycleKey)
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@@ -71,7 +102,7 @@ public class MultiComboBox: SelectingItemsControl
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PointerPressedEvent.RemoveHandler(OnBackgroundPointerPressed, _rootBorder);
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_rootBorder = e.NameScope.Find<Border>(PART_BackgroundBorder);
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PointerPressedEvent.AddHandler(OnBackgroundPointerPressed, _rootBorder);
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PseudoClasses.Set(PC_Empty, SelectedItems?.Count == 0);
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}
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private void OnBackgroundPointerPressed(object sender, PointerPressedEventArgs e)
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@@ -105,4 +136,27 @@ public class MultiComboBox: SelectingItemsControl
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}
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}
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public void Clear()
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{
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this.SelectedItems?.Clear();
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var containers = Presenter?.Panel?.Children;
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if(containers is null) return;
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foreach (var container in containers)
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{
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if (container is MultiComboBoxItem t)
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{
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t.IsSelected = false;
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}
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}
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}
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protected override void OnUnloaded(RoutedEventArgs e)
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{
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base.OnUnloaded(e);
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if (SelectedItems is INotifyCollectionChanged c)
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{
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c.CollectionChanged-=OnSelectedItemsCollectionChanged;
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}
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}
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}
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