Add "pressed" state to Hyperlink

Kinnara · Mar 31, 2020 · 19da839 · 19da839
1 parent 1270e86
commit 19da839
Show file tree

Hide file tree

Showing 6 changed files with 131 additions and 21 deletions.
diff --git a/ModernWpf.SampleApp/ControlPages/HyperlinkButtonPage.xaml b/ModernWpf.SampleApp/ControlPages/HyperlinkButtonPage.xaml
@@ -7,10 +7,7 @@
     xmlns:ui="http://schemas.modernwpf.com/2019"
     xmlns:sc="clr-namespace:SamplesCommon;assembly=SamplesCommon"
     mc:Ignorable="d"
-    d:DesignHeight="450"
-    d:DesignWidth="800"
-    Style="{StaticResource PageStyle}"
-    Title="HyperlinkButtonPage">
+    Style="{StaticResource PageStyle}">
 
     <ScrollViewer>
         <ui:SimpleStackPanel Style="{StaticResource ControlPageContentPanelStyle}">
@@ -37,6 +34,21 @@
                     Content="Go to ListBox"
                     Click="GoToHyperlinkButton_Click" />
             </sc:ControlExample>
+
+            <sc:ControlExample
+                HeaderText="Hyperlink text."
+                VerticalContentAlignment="Center">
+                <TextBlock x:Name="Control3">
+                    <Run>This is</Run>
+                    <Hyperlink>hyperlink text</Hyperlink>
+                </TextBlock>
+
+                <sc:ControlExample.Options>
+                    <CheckBox
+                        Content="IsEnabled"
+                        IsChecked="{Binding ElementName=Control3, Path=IsEnabled}" />
+                </sc:ControlExample.Options>
+            </sc:ControlExample>
         </ui:SimpleStackPanel>
     </ScrollViewer>
 </Page>
diff --git a/ModernWpf/Controls/Primitives/HyperlinkHelper.cs b/ModernWpf/Controls/Primitives/HyperlinkHelper.cs
@@ -0,0 +1,82 @@
+using System.Windows;
+using System.Windows.Documents;
+using System.Windows.Input;
+
+namespace ModernWpf.Controls.Primitives
+{
+    public static class HyperlinkHelper
+    {
+        #region IsPressEnabled
+
+        private static readonly DependencyProperty IsPressEnabledProperty =
+            DependencyProperty.RegisterAttached(
+                "IsPressEnabled",
+                typeof(bool),
+                typeof(HyperlinkHelper),
+                new PropertyMetadata(false, OnIsPressEnabledChanged));
+
+        public static bool GetIsPressEnabled(Hyperlink hyperlink)
+        {
+            return (bool)hyperlink.GetValue(IsPressEnabledProperty);
+        }
+
+        public static void SetIsPressEnabled(Hyperlink hyperlink, bool value)
+        {
+            hyperlink.SetValue(IsPressEnabledProperty, value);
+        }
+
+        private static void OnIsPressEnabledChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            var hyperlink = (Hyperlink)d;
+
+            if ((bool)e.NewValue)
+            {
+                hyperlink.AddHandler(Hyperlink.MouseLeftButtonDownEvent, new MouseButtonEventHandler(OnMouseLeftButtonDown), true);
+                hyperlink.AddHandler(Hyperlink.MouseLeftButtonUpEvent, new MouseButtonEventHandler(OnMouseLeftButtonUp), true);
+            }
+            else
+            {
+                hyperlink.RemoveHandler(Hyperlink.MouseLeftButtonDownEvent, new MouseButtonEventHandler(OnMouseLeftButtonDown));
+                hyperlink.RemoveHandler(Hyperlink.MouseLeftButtonUpEvent, new MouseButtonEventHandler(OnMouseLeftButtonUp));
+            }
+        }
+
+        private static void OnMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
+        {     
+            var hyperlink = (Hyperlink)sender;
+            if (hyperlink.IsMouseCaptured && e.ButtonState == MouseButtonState.Pressed)
+            {
+                hyperlink.SetValue(IsPressedPropertyKey, true);
+            }
+        }
+
+        private static void OnMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
+        {
+            var hyperlink = (Hyperlink)sender;
+            if (GetIsPressed(hyperlink))
+            {
+                hyperlink.SetValue(IsPressedPropertyKey, false);
+            }
+        }
+
+        #endregion
+
+        #region IsPressed
+
+        private static readonly DependencyPropertyKey IsPressedPropertyKey =
+            DependencyProperty.RegisterAttachedReadOnly(
+                "IsPressed",
+                typeof(bool),
+                typeof(HyperlinkHelper),
+                new PropertyMetadata(false));
+
+        public static readonly DependencyProperty IsPressedProperty = IsPressedPropertyKey.DependencyProperty;
+
+        public static bool GetIsPressed(Hyperlink hyperlink)
+        {
+            return (bool)hyperlink.GetValue(IsPressedProperty);
+        }
+
+        #endregion
+    }
+}
diff --git a/ModernWpf/ControlsResources.xaml b/ModernWpf/ControlsResources.xaml
@@ -17,6 +17,7 @@
         <ResourceDictionary Source="Styles/GridSplitter.xaml" />
         <ResourceDictionary Source="Styles/GroupBox.xaml" />
         <ResourceDictionary Source="Styles/GroupItem.xaml" />
+        <ResourceDictionary Source="Styles/Hyperlink.xaml" />
         <ResourceDictionary Source="Styles/Label.xaml" />
         <ResourceDictionary Source="Styles/ListBox.xaml" />
         <ResourceDictionary Source="Styles/ListView.xaml" />

diff --git a/ModernWpf/Styles/DataGrid.xaml b/ModernWpf/Styles/DataGrid.xaml
@@ -705,9 +705,13 @@
             <Style TargetType="Hyperlink">
                 <Setter Property="OverridesDefaultStyle" Value="True" />
                 <Setter Property="TextDecorations" Value="Underline" />
+                <Setter Property="primitives:HyperlinkHelper.IsPressEnabled" Value="True" />
                 <Style.Triggers>
                     <Trigger Property="IsMouseOver" Value="true">
-                        <Setter Property="Foreground" Value="{DynamicResource SystemControlPageTextBaseMediumBrush}" />
+                        <Setter Property="Foreground" Value="{DynamicResource SystemControlHyperlinkBaseMediumBrush}" />
+                    </Trigger>
+                    <Trigger Property="primitives:HyperlinkHelper.IsPressed" Value="true">
+                        <Setter Property="Foreground" Value="{DynamicResource SystemControlHighlightBaseMediumLowBrush}" />
                     </Trigger>
                     <Trigger Property="IsEnabled" Value="false">
                         <Setter Property="Foreground" Value="{DynamicResource SystemControlDisabledBaseMediumLowBrush}" />

diff --git a/ModernWpf/Styles/Hyperlink.xaml b/ModernWpf/Styles/Hyperlink.xaml
@@ -0,0 +1,27 @@
+<ResourceDictionary
+    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+    xmlns:primitives="clr-namespace:ModernWpf.Controls.Primitives">
+
+    <Style x:Key="DefaultHyperlinkStyle" TargetType="Hyperlink">
+        <Setter Property="Foreground" Value="{DynamicResource SystemControlHyperlinkTextBrush}" />
+        <Setter Property="TextDecorations" Value="Underline" />
+        <Setter Property="primitives:HyperlinkHelper.IsPressEnabled" Value="True" />
+        <Style.Triggers>
+            <Trigger Property="IsMouseOver" Value="true">
+                <Setter Property="Foreground" Value="{DynamicResource SystemControlHyperlinkBaseMediumBrush}" />
+            </Trigger>
+            <Trigger Property="primitives:HyperlinkHelper.IsPressed" Value="true">
+                <Setter Property="Foreground" Value="{DynamicResource SystemControlHighlightBaseMediumLowBrush}" />
+            </Trigger>
+            <Trigger Property="IsEnabled" Value="false">
+                <Setter Property="Foreground" Value="{DynamicResource SystemControlDisabledBaseMediumLowBrush}" />
+            </Trigger>
+            <Trigger Property="IsEnabled" Value="true">
+                <Setter Property="Cursor" Value="Hand" />
+            </Trigger>
+        </Style.Triggers>
+    </Style>
+
+    <Style TargetType="Hyperlink" BasedOn="{StaticResource DefaultHyperlinkStyle}" />
+</ResourceDictionary>
diff --git a/ModernWpf/Styles/RichTextBox.xaml b/ModernWpf/Styles/RichTextBox.xaml
@@ -7,22 +7,6 @@
 
     <Thickness x:Key="RichEditBoxTopHeaderMargin">0,0,0,4</Thickness>
 
-    <Style x:Key="{x:Type Hyperlink}" TargetType="{x:Type Hyperlink}">
-        <Setter Property="Foreground" Value="{DynamicResource SystemControlHyperlinkTextBrush}" />
-        <Setter Property="TextDecorations" Value="Underline" />
-        <Style.Triggers>
-            <Trigger Property="IsMouseOver" Value="true">
-                <Setter Property="Foreground" Value="{DynamicResource SystemControlPageTextBaseMediumBrush}" />
-            </Trigger>
-            <Trigger Property="IsEnabled" Value="false">
-                <Setter Property="Foreground" Value="{DynamicResource SystemControlDisabledBaseMediumLowBrush}" />
-            </Trigger>
-            <Trigger Property="IsEnabled" Value="true">
-                <Setter Property="Cursor" Value="Hand" />
-            </Trigger>
-        </Style.Triggers>
-    </Style>
-
     <Style x:Key="DefaultRichTextBoxStyle" TargetType="RichTextBox">
         <Setter Property="OverridesDefaultStyle" Value="True" />
         <Setter Property="Foreground" Value="{DynamicResource TextControlForeground}" />