Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / Tools / System.Activities.Presentation / System / Activities / Presentation / Base / Core / PropertyEditing / EditModeSwitchButton.cs / 1305376 / EditModeSwitchButton.cs
namespace System.Activities.Presentation.PropertyEditing {
using System;
using System.Windows;
using System.Windows.Input;
using System.Windows.Controls;
using System.Diagnostics.CodeAnalysis;
using System.Diagnostics;
///
/// Convenience button that allows the user to switch between the different PropertyContainer modes.
/// This button is styled to follow the look and feel specific to the host application. It can operate
/// in two modes - either it always executes a specified mode-switching command, or it adapts to
/// the current mode of the containing PropertyContainer and "does the right thing". If set manually,
/// SyncModeToOwningContainer must be set to false and the mode-switching command needs to be specified
/// using the TargetEditMode property. To set the mode automatically, SyncModeToOwningContainer must
/// be set to true in which case the TargetEditMode property is ignored.
///
[SuppressMessage("Microsoft.Maintainability", "CA1501:AvoidExcessiveInheritance")]
public class EditModeSwitchButton : Button {
private PropertyContainer _owningContainer;
private bool _attachedToContainerEvents;
///
/// Basic ctor
///
[SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public EditModeSwitchButton() {
this.Loaded += new RoutedEventHandler(OnLoaded);
this.Unloaded += new RoutedEventHandler(OnUnloaded);
this.FontSize = SystemFonts.IconFontSize;
this.FontFamily = SystemFonts.IconFontFamily;
this.FontWeight = SystemFonts.IconFontWeight;
}
// TargetEditMode DP
///
/// The mode to switch to when this control is clicked. Only used when
/// SyncModeToOwningContainer is set to false. Defaults to Inline.
///
public static readonly DependencyProperty TargetEditModeProperty = DependencyProperty.Register(
"TargetEditMode",
typeof(PropertyContainerEditMode),
typeof(EditModeSwitchButton),
new FrameworkPropertyMetadata(
PropertyContainerEditMode.Inline,
null, // PropertyChangedCallback
new CoerceValueCallback(OnCoerceEditModeProperty)));
///
/// The mode to switch to when this control is clicked. Only used when
/// SyncModeToOwningContainer is set to false. Defaults to Inline.
///
public PropertyContainerEditMode TargetEditMode {
get { return (PropertyContainerEditMode) this.GetValue(TargetEditModeProperty); }
set { this.SetValue(TargetEditModeProperty, value); }
}
private static object OnCoerceEditModeProperty(DependencyObject obj, object value) {
EditModeSwitchButton theThis = (EditModeSwitchButton) obj;
// [....] to the owning PropertyContainer only if requested to do so
if (!theThis.SyncModeToOwningContainer)
return value;
// Do we have an owning PropertyContainer?
if (theThis._owningContainer == null)
return value;
PropertyContainerEditMode newMode;
PropertyContainer owningContainer = theThis._owningContainer;
switch (owningContainer.ActiveEditMode) {
case PropertyContainerEditMode.Inline:
// when clicked, have this button switch to extended popup mode
// or dialog mode (dialog takes precedence)
if (owningContainer.SupportsEditMode(PropertyContainerEditMode.Dialog))
newMode = PropertyContainerEditMode.Dialog;
else if (owningContainer.SupportsEditMode(PropertyContainerEditMode.ExtendedPopup))
newMode = PropertyContainerEditMode.ExtendedPopup;
else
newMode = PropertyContainerEditMode.Inline;
break;
case PropertyContainerEditMode.ExtendedPopup:
// when clicked, have this button switch to extended pinned mode
newMode = PropertyContainerEditMode.ExtendedPinned;
break;
case PropertyContainerEditMode.ExtendedPinned:
// when clicked, have this button switch to inline mode
newMode = PropertyContainerEditMode.Inline;
break;
case PropertyContainerEditMode.Dialog:
// do nothing
newMode = theThis.TargetEditMode;
break;
default:
Debug.Fail(string.Format(
System.Globalization.CultureInfo.CurrentCulture,
"ModeSwitchControl does not yet support PropertyContainerEditMode '{0}'.",
owningContainer.ActiveEditMode.ToString()));
newMode = (PropertyContainerEditMode) value;
break;
}
return newMode;
}
// SyncModeToOwningContainer DP
///
/// When set to true, the TargetEditMode will be calculated automatically to match the ActiveEditMode
/// of the owning PropertyContainer. Otherwise, the mode to switch to will be based on the
/// TargetEditMode property.
///
public static readonly DependencyProperty SyncModeToOwningContainerProperty = DependencyProperty.Register(
"SyncModeToOwningContainer",
typeof(bool),
typeof(EditModeSwitchButton),
new FrameworkPropertyMetadata(true, new PropertyChangedCallback(OnSyncModeToOwningContainerChanged)));
///
/// When set to true, the TargetEditMode will be calculated automatically to match the ActiveEditMode
/// of the owning PropertyContainer. Otherwise, the mode to switch to will be based on the
/// TargetEditMode property.
///
public bool SyncModeToOwningContainer {
get { return (bool)this.GetValue(SyncModeToOwningContainerProperty); }
set { this.SetValue(SyncModeToOwningContainerProperty, value); }
}
// When the SyncModeToOwningContainer changes, we may need to update the current
// TargetEditMode
private static void OnSyncModeToOwningContainerChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e) {
EditModeSwitchButton theThis = (EditModeSwitchButton)obj;
theThis.CoerceValue(TargetEditModeProperty);
}
///
/// Called when any DependencyProperties of this Control change. If you override
/// this method, call the base implementation first to preserve the desired functionality.
///
/// Event args
protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e) {
// Check to see if this control has changed (or gained or lost) its owning PropertyContainer.
// If so, it may need to update its state / appearance accordingly
if (e.Property == PropertyContainer.OwningPropertyContainerProperty) {
PropertyContainer oldContainer = (PropertyContainer)e.OldValue;
PropertyContainer newContainer = (PropertyContainer)e.NewValue;
_owningContainer = newContainer;
if (oldContainer != null)
DisassociateContainerEventHandlers(oldContainer);
if (newContainer != null)
AssociateContainerEventHandlers(newContainer);
this.CoerceValue(TargetEditModeProperty);
}
base.OnPropertyChanged(e);
}
private void OnPropertyContainerDependencyPropertyChanged(object sender, DependencyPropertyChangedEventArgs e) {
// All of these properties changing have the potential of affecting the appearance
// of this control
if (e.Property == PropertyContainer.ActiveEditModeProperty ||
e.Property == PropertyContainer.PropertyEntryProperty ||
e.Property == PropertyContainer.DefaultStandardValuesPropertyValueEditorProperty ||
e.Property == PropertyContainer.DefaultPropertyValueEditorProperty) {
this.CoerceValue(TargetEditModeProperty);
}
}
private void AssociateContainerEventHandlers(PropertyContainer container) {
if (!_attachedToContainerEvents) {
container.DependencyPropertyChanged += new DependencyPropertyChangedEventHandler(OnPropertyContainerDependencyPropertyChanged);
_attachedToContainerEvents = true;
}
}
private void DisassociateContainerEventHandlers(PropertyContainer container) {
if (_attachedToContainerEvents) {
container.DependencyPropertyChanged -= new DependencyPropertyChangedEventHandler(OnPropertyContainerDependencyPropertyChanged);
_attachedToContainerEvents = false;
}
}
// When the control gets unloaded, unhook any remaining event handlers
// so that it can be garbage collected
private void OnUnloaded(object sender, RoutedEventArgs e) {
if (_owningContainer != null)
DisassociateContainerEventHandlers(_owningContainer);
}
// When the control gets re-loaded somewhere else in the tree, re-hook the
// event handlers back up
private void OnLoaded(object sender, RoutedEventArgs e) {
if (_owningContainer != null)
AssociateContainerEventHandlers(_owningContainer);
}
///
/// Because of the nature of the popup capturing mouse and disappearing when the
/// user clicks outside of it, to pin an ExtendedEditor we listen to MouseDown event
/// rather than the Click event.
///
/// Event args
protected override void OnMouseDown(MouseButtonEventArgs e) {
if (e.LeftButton == MouseButtonState.Pressed) {
// Invoke the appropriate command
switch (this.TargetEditMode) {
case PropertyContainerEditMode.Inline:
PropertyValueEditorCommands.ShowInlineEditor.Execute(null, this);
break;
case PropertyContainerEditMode.ExtendedPopup:
PropertyValueEditorCommands.ShowExtendedPopupEditor.Execute(null, this);
break;
case PropertyContainerEditMode.ExtendedPinned:
PropertyValueEditorCommands.ShowExtendedPinnedEditor.Execute(null, this);
break;
case PropertyContainerEditMode.Dialog:
PropertyValueEditorCommands.ShowDialogEditor.Execute(null, this);
break;
default:
Debug.Fail(string.Format(
System.Globalization.CultureInfo.CurrentCulture,
"ModeSwitchControl does not yet support PropertyContainerEditMode '{0}'.",
this.TargetEditMode.ToString()));
break;
}
}
base.OnMouseDown(e);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
namespace System.Activities.Presentation.PropertyEditing {
using System;
using System.Windows;
using System.Windows.Input;
using System.Windows.Controls;
using System.Diagnostics.CodeAnalysis;
using System.Diagnostics;
///
/// Convenience button that allows the user to switch between the different PropertyContainer modes.
/// This button is styled to follow the look and feel specific to the host application. It can operate
/// in two modes - either it always executes a specified mode-switching command, or it adapts to
/// the current mode of the containing PropertyContainer and "does the right thing". If set manually,
/// SyncModeToOwningContainer must be set to false and the mode-switching command needs to be specified
/// using the TargetEditMode property. To set the mode automatically, SyncModeToOwningContainer must
/// be set to true in which case the TargetEditMode property is ignored.
///
[SuppressMessage("Microsoft.Maintainability", "CA1501:AvoidExcessiveInheritance")]
public class EditModeSwitchButton : Button {
private PropertyContainer _owningContainer;
private bool _attachedToContainerEvents;
///
/// Basic ctor
///
[SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors")]
public EditModeSwitchButton() {
this.Loaded += new RoutedEventHandler(OnLoaded);
this.Unloaded += new RoutedEventHandler(OnUnloaded);
this.FontSize = SystemFonts.IconFontSize;
this.FontFamily = SystemFonts.IconFontFamily;
this.FontWeight = SystemFonts.IconFontWeight;
}
// TargetEditMode DP
///
/// The mode to switch to when this control is clicked. Only used when
/// SyncModeToOwningContainer is set to false. Defaults to Inline.
///
public static readonly DependencyProperty TargetEditModeProperty = DependencyProperty.Register(
"TargetEditMode",
typeof(PropertyContainerEditMode),
typeof(EditModeSwitchButton),
new FrameworkPropertyMetadata(
PropertyContainerEditMode.Inline,
null, // PropertyChangedCallback
new CoerceValueCallback(OnCoerceEditModeProperty)));
///
/// The mode to switch to when this control is clicked. Only used when
/// SyncModeToOwningContainer is set to false. Defaults to Inline.
///
public PropertyContainerEditMode TargetEditMode {
get { return (PropertyContainerEditMode) this.GetValue(TargetEditModeProperty); }
set { this.SetValue(TargetEditModeProperty, value); }
}
private static object OnCoerceEditModeProperty(DependencyObject obj, object value) {
EditModeSwitchButton theThis = (EditModeSwitchButton) obj;
// [....] to the owning PropertyContainer only if requested to do so
if (!theThis.SyncModeToOwningContainer)
return value;
// Do we have an owning PropertyContainer?
if (theThis._owningContainer == null)
return value;
PropertyContainerEditMode newMode;
PropertyContainer owningContainer = theThis._owningContainer;
switch (owningContainer.ActiveEditMode) {
case PropertyContainerEditMode.Inline:
// when clicked, have this button switch to extended popup mode
// or dialog mode (dialog takes precedence)
if (owningContainer.SupportsEditMode(PropertyContainerEditMode.Dialog))
newMode = PropertyContainerEditMode.Dialog;
else if (owningContainer.SupportsEditMode(PropertyContainerEditMode.ExtendedPopup))
newMode = PropertyContainerEditMode.ExtendedPopup;
else
newMode = PropertyContainerEditMode.Inline;
break;
case PropertyContainerEditMode.ExtendedPopup:
// when clicked, have this button switch to extended pinned mode
newMode = PropertyContainerEditMode.ExtendedPinned;
break;
case PropertyContainerEditMode.ExtendedPinned:
// when clicked, have this button switch to inline mode
newMode = PropertyContainerEditMode.Inline;
break;
case PropertyContainerEditMode.Dialog:
// do nothing
newMode = theThis.TargetEditMode;
break;
default:
Debug.Fail(string.Format(
System.Globalization.CultureInfo.CurrentCulture,
"ModeSwitchControl does not yet support PropertyContainerEditMode '{0}'.",
owningContainer.ActiveEditMode.ToString()));
newMode = (PropertyContainerEditMode) value;
break;
}
return newMode;
}
// SyncModeToOwningContainer DP
///
/// When set to true, the TargetEditMode will be calculated automatically to match the ActiveEditMode
/// of the owning PropertyContainer. Otherwise, the mode to switch to will be based on the
/// TargetEditMode property.
///
public static readonly DependencyProperty SyncModeToOwningContainerProperty = DependencyProperty.Register(
"SyncModeToOwningContainer",
typeof(bool),
typeof(EditModeSwitchButton),
new FrameworkPropertyMetadata(true, new PropertyChangedCallback(OnSyncModeToOwningContainerChanged)));
///
/// When set to true, the TargetEditMode will be calculated automatically to match the ActiveEditMode
/// of the owning PropertyContainer. Otherwise, the mode to switch to will be based on the
/// TargetEditMode property.
///
public bool SyncModeToOwningContainer {
get { return (bool)this.GetValue(SyncModeToOwningContainerProperty); }
set { this.SetValue(SyncModeToOwningContainerProperty, value); }
}
// When the SyncModeToOwningContainer changes, we may need to update the current
// TargetEditMode
private static void OnSyncModeToOwningContainerChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e) {
EditModeSwitchButton theThis = (EditModeSwitchButton)obj;
theThis.CoerceValue(TargetEditModeProperty);
}
///
/// Called when any DependencyProperties of this Control change. If you override
/// this method, call the base implementation first to preserve the desired functionality.
///
/// Event args
protected override void OnPropertyChanged(DependencyPropertyChangedEventArgs e) {
// Check to see if this control has changed (or gained or lost) its owning PropertyContainer.
// If so, it may need to update its state / appearance accordingly
if (e.Property == PropertyContainer.OwningPropertyContainerProperty) {
PropertyContainer oldContainer = (PropertyContainer)e.OldValue;
PropertyContainer newContainer = (PropertyContainer)e.NewValue;
_owningContainer = newContainer;
if (oldContainer != null)
DisassociateContainerEventHandlers(oldContainer);
if (newContainer != null)
AssociateContainerEventHandlers(newContainer);
this.CoerceValue(TargetEditModeProperty);
}
base.OnPropertyChanged(e);
}
private void OnPropertyContainerDependencyPropertyChanged(object sender, DependencyPropertyChangedEventArgs e) {
// All of these properties changing have the potential of affecting the appearance
// of this control
if (e.Property == PropertyContainer.ActiveEditModeProperty ||
e.Property == PropertyContainer.PropertyEntryProperty ||
e.Property == PropertyContainer.DefaultStandardValuesPropertyValueEditorProperty ||
e.Property == PropertyContainer.DefaultPropertyValueEditorProperty) {
this.CoerceValue(TargetEditModeProperty);
}
}
private void AssociateContainerEventHandlers(PropertyContainer container) {
if (!_attachedToContainerEvents) {
container.DependencyPropertyChanged += new DependencyPropertyChangedEventHandler(OnPropertyContainerDependencyPropertyChanged);
_attachedToContainerEvents = true;
}
}
private void DisassociateContainerEventHandlers(PropertyContainer container) {
if (_attachedToContainerEvents) {
container.DependencyPropertyChanged -= new DependencyPropertyChangedEventHandler(OnPropertyContainerDependencyPropertyChanged);
_attachedToContainerEvents = false;
}
}
// When the control gets unloaded, unhook any remaining event handlers
// so that it can be garbage collected
private void OnUnloaded(object sender, RoutedEventArgs e) {
if (_owningContainer != null)
DisassociateContainerEventHandlers(_owningContainer);
}
// When the control gets re-loaded somewhere else in the tree, re-hook the
// event handlers back up
private void OnLoaded(object sender, RoutedEventArgs e) {
if (_owningContainer != null)
AssociateContainerEventHandlers(_owningContainer);
}
///
/// Because of the nature of the popup capturing mouse and disappearing when the
/// user clicks outside of it, to pin an ExtendedEditor we listen to MouseDown event
/// rather than the Click event.
///
/// Event args
protected override void OnMouseDown(MouseButtonEventArgs e) {
if (e.LeftButton == MouseButtonState.Pressed) {
// Invoke the appropriate command
switch (this.TargetEditMode) {
case PropertyContainerEditMode.Inline:
PropertyValueEditorCommands.ShowInlineEditor.Execute(null, this);
break;
case PropertyContainerEditMode.ExtendedPopup:
PropertyValueEditorCommands.ShowExtendedPopupEditor.Execute(null, this);
break;
case PropertyContainerEditMode.ExtendedPinned:
PropertyValueEditorCommands.ShowExtendedPinnedEditor.Execute(null, this);
break;
case PropertyContainerEditMode.Dialog:
PropertyValueEditorCommands.ShowDialogEditor.Execute(null, this);
break;
default:
Debug.Fail(string.Format(
System.Globalization.CultureInfo.CurrentCulture,
"ModeSwitchControl does not yet support PropertyContainerEditMode '{0}'.",
this.TargetEditMode.ToString()));
break;
}
}
base.OnMouseDown(e);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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