private static void MouseUpCommandChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
FrameworkElement element = (FrameworkElement)d;
element.AddHandler(Mouse.MouseEnterEvent, new MouseEventHandler(OnMouseEvent));
element.AddHandler(Mouse.MouseLeaveEvent, new MouseEventHandler(OnMouseEvent));
}
public void AttachCommandHandlers(FrameworkElement sender)
{
sender.AddHandler(CommandManager.PreviewCanExecuteEvent, new CanExecuteRoutedEventHandler(PreviewCanExecuteHandler), true);
sender.AddHandler(CommandManager.CanExecuteEvent, new CanExecuteRoutedEventHandler(CanExecuteHandler), true);
sender.AddHandler(CommandManager.PreviewExecutedEvent, new ExecutedRoutedEventHandler(PreviewExecutedHandler), true);
sender.AddHandler(CommandManager.ExecutedEvent, new ExecutedRoutedEventHandler(ExecutedHandler), true);
}
protected override void OnApplyTemplate()
{
sliderContainer = GetTemplateChild("SliderContainer") as FrameworkElement;
if (sliderContainer != null)
{
sliderContainer.PointerPressed += SliderContainer_PointerPressed;
sliderContainer.AddHandler(PointerPressedEvent, new PointerEventHandler(SliderContainer_PointerPressed), true);
sliderContainer.AddHandler(PointerReleasedEvent, new PointerEventHandler(SliderContainer_PointerReleased), true);
sliderContainer.AddHandler(PointerCanceledEvent, new PointerEventHandler(SliderContainer_PointerReleased), true);
sliderContainer.AddHandler(PointerCaptureLostEvent, new PointerEventHandler(SliderContainer_PointerReleased), true);
sliderContainer.ManipulationMode = Orientation == Orientation.Vertical ? ManipulationModes.TranslateY : ManipulationModes.TranslateX;
sliderContainer.ManipulationStarted += SliderContainer_ManipulationStarted;
sliderContainer.ManipulationDelta += SliderContainer_ManipulationDelta;
sliderContainer.ManipulationCompleted += SliderContainer_ManipulationCompleted;
sliderContainer.Unloaded += SliderContainer_Unloaded;
sliderContainerPointerOverManager = new PointerOverManager(sliderContainer, true);
sliderContainerPointerOverManager.IsPointerOverChanged += SliderContainerPointerOverManager_IsPointerOverChanged;
}
horizontalTemplate = GetTemplateChild("HorizontalTemplate") as Grid;
if (horizontalTemplate != null)
{
horizontalTemplate.SizeChanged += HorizontalTemplate_SizeChanged;
}
horizontalThumb = GetTemplateChild("HorizontalThumb") as FrameworkElement;
if (horizontalThumb != null)
{
horizontalThumb.RenderTransform = horizontalThumbTransform;
horizontalThumb.SizeChanged += HorizontalThumb_SizeChanged;
}
horizontalDecreaseRect = GetTemplateChild("HorizontalDecreaseRect") as FrameworkElement;
if (horizontalDecreaseRect != null)
{
horizontalDecreaseRect.RenderTransform = horizontalDecreaseRectTransform;
horizontalDecreaseRect.RenderTransformOrigin = new Point(0.0, 0.5);
}
verticalTemplate = GetTemplateChild("VerticalTemplate") as Grid;
if (verticalTemplate != null)
{
verticalTemplate.SizeChanged += VerticalTemplate_SizeChanged;
}
verticalThumb = GetTemplateChild("VerticalThumb") as FrameworkElement;
if (verticalThumb != null)
{
verticalThumb.RenderTransform = verticalThumbTransform;
verticalThumb.SizeChanged += VerticalThumb_SizeChanged;
}
verticalDecreaseRect = GetTemplateChild("VerticalDecreaseRect") as FrameworkElement;
if (verticalDecreaseRect != null)
{
verticalDecreaseRect.RenderTransform = horizontalDecreaseRectTransform;
verticalDecreaseRect.RenderTransformOrigin = new Point(0.5, 1.0);
}
base.OnApplyTemplate();
UpdateControls();
}
/// <summary>
/// 开启倾斜效果。
/// </summary>
/// <param name="element">要开启倾斜效果的元素。</param>
private void Enable(FrameworkElement element)
{
_target = element;
_tiltDownStoryboard = new Lazy <Storyboard>(() => CreateTiltStoryboard(element, true));
_tiltUpStoryboard = new Lazy <Storyboard>(() => CreateTiltStoryboard(element, false));
element.AddHandler(UIElement.MouseLeftButtonDownEvent, _downHandler, true);
element.AddHandler(UIElement.MouseLeftButtonUpEvent, _upHandler, true);
element.AddHandler(UIElement.MouseLeaveEvent, _leaveHandler, true);
}
private static void onCheckingKeyChanged(DependencyObject target, Key value)
{
FrameworkElement element = target as FrameworkElement;
if (element == null)
{
return;
}
element.PreviewMouseMove += element_PreviewMouseMove;
element.Focusable = true;
element.AddHandler(FrameworkElement.PreviewKeyDownEvent, new KeyEventHandler(checkKey), true);
element.AddHandler(FrameworkElement.PreviewKeyUpEvent, new KeyEventHandler(checkKey), true);
}
/// <summary>
/// Initializes a new instance of the <see cref="MouseClickWrapper"/> class with specified FrameworkElement as mouse events source and specified MouseButton
/// to notify about its clicks.
/// </summary>
/// <param name="element">The element.</param>
/// <param name="mouseButton">The mouse button.</param>
public MouseClickWrapper(FrameworkElement element, MouseButton mouseButton)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
this.element = element;
this.mouseButton = mouseButton;
element.AddHandler(FrameworkElement.MouseDownEvent, new MouseButtonEventHandler(OnMouseDown));
element.AddHandler(FrameworkElement.MouseUpEvent, new MouseButtonEventHandler(OnMouseUp));
}
/// <summary>
/// Initializing constructor
/// </summary>
/// <param name="dragSource">Element to be the source of a drag operation</param>
public DragHelper(FrameworkElement dragSource)
{
_dragSource = dragSource;
_dragSource.AddHandler(FrameworkElement.MouseLeftButtonDownEvent,
new MouseButtonEventHandler(OnMouseLeftButtonDown), true);
_dragSource.AddHandler(FrameworkElement.MouseLeftButtonUpEvent,
new MouseButtonEventHandler(OnMouseLeftButtonUp), true);
_dragSource.AddHandler(FrameworkElement.MouseMoveEvent,
new MouseEventHandler(OnMouseMove), true);
_dragSource.GiveFeedback += OnGiveFeedback;
}
private void InitializeDropDown()
{
_dropDownContent = ResultsBoxTemplate.LoadContent() as FrameworkElement;
_dropDown = new PopupAdorner(_searchTextBox, _dropDownContent);
_resultsItemControl = _dropDownContent.FindName("PART_ResultsItemControl") as ItemsControl;
_dropDownContent.SetBinding(FrameworkElement.DataContextProperty, new Binding("DataContext")
{
Source = this
});
_dropDownContent.AddHandler(ResultItem.ResultItemSelectedEvent, new RoutedEventHandler(OnResultItemSelected));
_dropDownContent.AddHandler(ResultItem.ResultItemClickedEvent, new RoutedEventHandler(OnResultItemClicked));
_dropDownContent.MouseDown += PopupContent_MouseDown;
}
public static void SetEventDetection(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
FrameworkElement objectToDetectEventOn =
GetObjectToDetectEventOn(sender);
if (objectToDetectEventOn == null)
{
return;
}
RoutedEvent routedEvent = GetTheEventToDetect(sender);
if (routedEvent == null)
{
return;
}
FrameworkElement currentEl = (FrameworkElement)sender;
void Handler(object obj, RoutedEventArgs routedEventArgs)
{
routedEventArgs.RoutedEvent = DetectedEvent;
currentEl.RaiseEvent(routedEventArgs);
}
objectToDetectEventOn.AddHandler(routedEvent, (RoutedEventHandler)Handler);
}
private static void OnRoutedEventCommand(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
FrameworkElement sender = d as FrameworkElement;
if (sender == null)
{
return;
}
var oldValue = e.OldValue as RoutedEvent;
if (oldValue != null)
{
sender.RemoveHandler(oldValue, new MouseButtonEventHandler(OnElementMouseDown));
}
var routedEvent = e.NewValue as RoutedEvent;
if (routedEvent != null)
{
if (sender.IsLoaded)
{
sender.AddHandler(routedEvent, new MouseButtonEventHandler(OnElementMouseDown));
}
sender.Unloaded += OnElementUnloaded;
sender.Loaded += OnElementLoaded;
}
}
/// <summary>
/// The set root visual.
/// </summary>
private static void SetRootVisual()
{
lock (Locker)
{
if ((RootVisual != null) || (Application.Current == null))
{
return;
}
RootVisual = BrowserInteropHelper.IsBrowserHosted ? null :
(Application.Current.MainWindow.Content as FrameworkElement) != null ?
Application.Current.MainWindow.Content as FrameworkElement : Application.Current.MainWindow;
if (RootVisual == null)
{
return;
}
RootVisual.MouseMove += OnRootVisualMouseMove;
RootVisual.AddHandler(
UIElement.MouseLeftButtonDownEvent,
new MouseButtonEventHandler(OnRootVisualMouseLeftButtonDown),
true);
}
}
/// <summary>
/// The set root visual.
/// </summary>
/// <param name="frameworkElement"></param>
private static void SetRootVisual(FrameworkElement frameworkElement)
{
lock (Locker)
{
if (Application.Current == null)
{
return;
}
if (RootVisual != null)
{
RootVisual.MouseMove -= OnRootVisualMouseMove;
}
RootVisual = frameworkElement.GetVisualRoot() as FrameworkElement
?? Application.Current.MainWindow.Content as FrameworkElement
?? Application.Current.MainWindow;
if (RootVisual == null)
{
return;
}
RootVisual.MouseMove += OnRootVisualMouseMove;
RootVisual.AddHandler(
UIElement.MouseLeftButtonDownEvent,
new MouseButtonEventHandler(OnRootVisualMouseLeftButtonDown),
true);
}
}
private void AddEventsToFrameworkElement(FrameworkElement element)
{
element.LostFocus += this.FrameworkElementLostFocusHandler;
element.GotFocus += this.FrameworkElementGotFocusHandler;
element.AddHandler(
UIElement.GettingFocusEvent,
FrameworkElementGettingFocusHandler,
true /*handledEventsToo*/
);
element.AddHandler(
UIElement.LosingFocusEvent,
FrameworkElementLosingFocusHandler,
true /*handledEventsToo*/
);
element.NoFocusCandidateFound += this.FrameworkElementNoFocusCandidateFoundHandler;
}
public DragListener(FrameworkElement target)
{
this.target = target;
target.AddHandler(Mouse.MouseDownEvent, new MouseButtonEventHandler(MouseButtonDown), true);
target.PreviewMouseMove += MouseMove;
target.PreviewMouseLeftButtonUp += MouseLeftButtonUp;
}
private void AddChildToPlotter(CapturingPlotter plotter)
{
if (plotter.Children.Count == 0 && childCreateHandler != null)
{
int plotterIndex = Array.IndexOf <CapturingPlotter>(plotters, plotter);
var child = childCreateHandler();
if (plotterIndex == 0)
{
FrameworkElement element = (FrameworkElement)child;
element.AddHandler(Viewport2D.ContentBoundsChangedEvent, new RoutedEventHandler(OnChildContentBoundsChanged));
element.AddHandler(BackgroundRenderer.UpdateRequested, new RoutedEventHandler(OnChildUpdateRequested));
}
plotter.Children.Add(child);
}
}
private static void OnElementLoaded(object sender, RoutedEventArgs e)
{
FrameworkElement item = sender as FrameworkElement;
RoutedEvent routedEvent = GetRoutedEventCommand(item);
item.AddHandler(routedEvent, new MouseButtonEventHandler(OnElementMouseDown));
}
public void AttachEvents(FrameworkElement elt, bool dragInBackground)
{
elt.AddHandler(FrameworkElement.MouseLeftButtonDownEvent, (MouseButtonEventHandler)InitiateDrag, dragInBackground);
elt.AllowDrop = true;
elt.DragOver += DragOver;
elt.DragLeave += DragLeave;
elt.Drop += Drop;
}
public static void AddClickHandler(DependencyObject o, RoutedEventHandler handler)
{
FrameworkElement element = (FrameworkElement)o;
element.AddHandler(ClickEvent, handler);
element.MouseLeftButtonUp += new System.Windows.Input.MouseButtonEventHandler(SimulatedClick_MouseLeftButtonUp);
element.PreviewMouseLeftButtonDown += new System.Windows.Input.MouseButtonEventHandler(SimulatedClick_MouseLeftButtonDown);
}
public virtual void SetOrientationProvider(FrameworkElement control)
{
if (control != null)
{
CurrentControl = control;
control.AddHandler(UIElement.KeyDownEvent, new KeyEventHandler(HandleOwnerMouseRightButtonDown), true);
}
}
public void Attach(FrameworkElement element)
{
if (IsInDesigner)
{
return;
}
this.AnimationTarget = element;
if (!element.IsLoaded)
{
element.AddHandler(FrameworkElement.LoadedEvent, new RoutedEventHandler(this.OnLoaded));
}
else
{
this.OnLoaded(element, EventArgs.Empty);
}
element.AddHandler(FrameworkElement.UnloadedEvent, new RoutedEventHandler(this.OnUnloaded));
}
/// <inheritdoc/>
protected override void OnValueAssociated(FrameworkElement targetObject, BehaviorActionCollection <DependencyObject> newValue)
{
base.OnValueAssociated(targetObject, newValue);
Require.NotNull(targetObject, nameof(targetObject));
targetObject.AddHandler(_routedEvent, (RoutedEventHandler)OnEvent);
}
/// <summary>
/// Handles a change to the undo manager for a given dependency object.
/// </summary>
/// <param name="dependencyObject">The target object for this attached property.</param>
/// <param name="dependencyPropertyChangedEventArgs">The event parameters.</param>
private static void OnUndoScopeChanged(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
{
// This will remove the high level handlers for the root node in the UndoManager scope.
if (dependencyPropertyChangedEventArgs.OldValue is UndoManager)
{
// This is the manager that was previously associated with the root of the Undo Scope.
UndoManager undoManager = dependencyPropertyChangedEventArgs.OldValue as UndoManager;
// This will remove a handler for the mouse focus events.
undoManager.focusUndo.Unregister(dependencyObject);
// This will remove the UndoManager from all the child controls.
dependencyObject.ClearValue(UndoManager.UndoManagerProperty);
// This will remove the handlers for the undo/redo operations for the given undo manager.
if (dependencyObject is FrameworkElement)
{
FrameworkElement frameworkElement = dependencyObject as FrameworkElement;
frameworkElement.RemoveHandler(CommandManager.PreviewExecutedEvent, new ExecutedRoutedEventHandler(undoManager.OnCommand));
}
//// This will remove the handlers for the undo/redo operations for the given undo manager.
if (dependencyObject is FrameworkContentElement)
{
FrameworkContentElement frameworkContentElement = dependencyObject as FrameworkContentElement;
frameworkContentElement.RemoveHandler(CommandManager.PreviewExecutedEvent, new ExecutedRoutedEventHandler(undoManager.OnCommand));
}
}
// This will add the high level handlers for the root node in the UndoManager scope.
if (dependencyPropertyChangedEventArgs.NewValue is UndoManager)
{
// This is the manager that will be used for this Undo Scope to manage the Undo and Redo operations.
UndoManager undoManager = dependencyPropertyChangedEventArgs.NewValue as UndoManager;
// This will add a handler for the mouse focus events.
undoManager.focusUndo.Register(dependencyObject);
// This adds the Undo Manager to all the child windows in the scope of this user interface element which forms
// the root of the scope.
dependencyObject.SetValue(UndoManager.UndoManagerProperty, undoManager);
// This will add the handlers for the undo/redo operations for the given undo manager.
if (dependencyObject is FrameworkElement)
{
FrameworkElement frameworkElement = dependencyObject as FrameworkElement;
frameworkElement.AddHandler(CommandManager.PreviewExecutedEvent, new ExecutedRoutedEventHandler(undoManager.OnCommand), true);
}
//// This will add the handlers for the undo/redo operations for the given undo manager.
if (dependencyObject is FrameworkContentElement)
{
FrameworkContentElement frameworkContentElement = dependencyObject as FrameworkContentElement;
frameworkContentElement.AddHandler(CommandManager.PreviewExecutedEvent, new ExecutedRoutedEventHandler(undoManager.OnCommand), true);
}
}
}
protected override void OnAttached(FrameworkElement associatedObject)
{
var button = associatedObject as Button;
if (button != null)
{
associatedObject.AddHandler(Button.ClickEvent, new RoutedEventHandler(this.OnClick));
}
}
public static void AddOnInvokeHandler(DependencyObject d, RoutedEventHandler handler)
{
FrameworkElement uie = d as FrameworkElement;
if (uie != null)
{
uie.AddHandler(OnInvokeEvent, handler);
}
}
private static void OnEventChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
FrameworkElement el = (FrameworkElement)d;
RoutedEvent routedEvent = GetEventToConsume(el);
if (routedEvent != null)
{
el.RemoveHandler(routedEvent, (RoutedEventHandler)OnEvent);
el.AddHandler(routedEvent, (RoutedEventHandler)OnEvent);
}
}
private void HookEvents(FrameworkElement elt)
{
elt.AddHandler(PointerEnteredEvent, new PointerEventHandler((snd, e) => Log("[ENTERED]", e)), handledEventsToo: true);
elt.AddHandler(PointerPressedEvent, new PointerEventHandler((snd, e) => Log("[PRESSED]", e)), handledEventsToo: true);
elt.AddHandler(PointerMovedEvent, new PointerEventHandler((snd, e) => Log("[MOVED]", e)), handledEventsToo: true);
elt.AddHandler(PointerReleasedEvent, new PointerEventHandler((snd, e) => Log("[RELEASED]", e)), handledEventsToo: true);
elt.AddHandler(PointerExitedEvent, new PointerEventHandler((snd, e) => Log("[EXITED]", e)), handledEventsToo: true);
elt.AddHandler(PointerCanceledEvent, new PointerEventHandler((snd, e) => Log("[CANCELED]", e)), handledEventsToo: true);
elt.AddHandler(PointerCaptureLostEvent, new PointerEventHandler((snd, e) => Log("[CAPTURE_LOST]", e)), handledEventsToo: true);
}
/// <summary>
/// Wires up an event to the target
/// </summary>
/// <param name="target"></param>
internal void Subscribe(object target)
{
string eventName = Event;
if (target != null)
{
BindingOperations.SetBinding(this, FrameworkElement.DataContextProperty,
new Binding("DataContext")
{
Source = target
});
EventInfo ei = target.GetType().GetEvent(eventName, BindingFlags.Public | BindingFlags.Instance);
if (ei != null)
{
ei.RemoveEventHandler(target, GetEventMethod(ei));
ei.AddEventHandler(target, GetEventMethod(ei));
return;
}
// If the name has a colon namespace declaration, then drop that off.
int dotPos = eventName.IndexOf(':');
if (dotPos > 0)
{
eventName = eventName.Substring(dotPos + 1);
}
// Look for an attached event on a Dependency Property
dotPos = eventName.IndexOf('.');
if (dotPos > 0 && eventName.Length > dotPos)
{
// Scan the event manager for the specified event.
var attachedEvent = EventManager.GetRoutedEvents().Where(evt => evt.ToString() == eventName).SingleOrDefault();
if (attachedEvent != null)
{
FrameworkElement fe = target as FrameworkElement;
if (fe == null)
{
Debug.WriteLine(string.Format("Failed to cast Target {0} to FrameworkElement to subscribe to attached event {1}", target, eventName));
}
else
{
fe.RemoveHandler(attachedEvent, GetRoutedEventMethod());
fe.AddHandler(attachedEvent, GetRoutedEventMethod());
}
}
return;
}
}
Debug.WriteLine(string.Format("Unable to locate event {0} on {1}", eventName, target));
}
public static void AttachOneShotCommandHandler(FrameworkElement element, RoutedEvent @event, RoutedEventHandler callback)
{
RoutedEventHandler handler = null;
handler = (arg0, arg1) =>
{
element.RemoveHandler(@event, handler);
callback(arg0, arg1);
};
element.AddHandler(@event, handler);
}
/// <summary>
/// 为FrameworkElement启动拖动功能
/// </summary>
/// <param name="controlToDrag">需要拖动功能的组件</param>
/// <param name="dragHook">拖动锚点</param>
/// <param name="isAbutCanDrag">是否肯定可被拖动（在组件相互遮盖的情况下标示是否强制拖动被遮盖组件）</param>
public void Invest(FrameworkElement controlToDrag, FrameworkElement dragHook, bool isAbutCanDrag = true)
{
_leftBtnDown = new MouseButtonEventHandler(dragHook_MouseLeftButtonDown);
_mouseMove = new MouseEventHandler(dragHook_MouseMove);
_leftBtnUp = new MouseButtonEventHandler(dragHook_MouseLeftButtonUp);
if (dragHook != null)
{
if (isAbutCanDrag)
{
dragHook.AddHandler(UIElement.MouseLeftButtonDownEvent, _leftBtnDown, true);
}
else
{
dragHook.MouseLeftButtonDown += _leftBtnDown;
}
dragHook.AddHandler(UIElement.MouseMoveEvent, _mouseMove, true);
dragHook.AddHandler(UIElement.MouseLeftButtonUpEvent, _leftBtnUp, true);
}
_dragHook = dragHook;
_controlToDrag = controlToDrag;
_translate = TransformHelper.SetTransform <TranslateTransform>(_controlToDrag);
}
static void OnEnableChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
ScrollViewer scrollviewer = sender as ScrollViewer;
if (scrollviewer != null && e.NewValue is bool &&
scrollviewer.Content != null && scrollviewer.Content is FrameworkElement)
{
FrameworkElement fe = scrollviewer.Content as FrameworkElement;
if ((bool)e.NewValue)
{
SetStartPoint(scrollviewer, new Point(-1, -1));
fe.AddHandler(FrameworkElement.PreviewMouseDownEvent, mouseButtonDownHandle);
fe.AddHandler(FrameworkElement.PreviewMouseUpEvent, mouseButtonUpHandle);
fe.AddHandler(FrameworkElement.PreviewMouseMoveEvent, mouseMoveHandle);
}
else
{
fe.RemoveHandler(FrameworkElement.PreviewMouseDownEvent, mouseButtonDownHandle);
fe.RemoveHandler(FrameworkElement.PreviewMouseUpEvent, mouseButtonUpHandle);
fe.RemoveHandler(FrameworkElement.PreviewMouseMoveEvent, mouseMoveHandle);
}
}
}