// MouseDownEvent handler - used both for Left and Right mouse buttons
internal static void OnMouseDown(object sender, MouseButtonEventArgs e)
{
TextEditor This = TextEditor._GetTextEditor(sender);
if (This == null)
{
return;
}
// If UiScope has a ToolTip and it is open, any keyboard/mouse activity should close the tooltip.
This.CloseToolTip();
// Ignore the event if the editor has been detached from its scope
if (!This._IsEnabled)
{
return;
}
// Ignore the event if the attached scope is not focusable content.
if (!This.UiScope.Focusable)
{
return;
}
// MITIGATION: NESTED_MESSAGE_PUMPS_INTERFERE_WITH_INPUT
// This is a very specific fix for a case where someone displayed a dialog
// box in response to mouse down. In general, this entire routine needs
// to be written to handle that fact that any state can change whenever
// you call out. See ButtonBase.OnMouseLeftButtonDown for an example.
if (e.ButtonState == MouseButtonState.Released)
{
return;
}
e.Handled = true;
// Start with moving the focus into this control.
MoveFocusToUiScope(This);
if (This.UiScope != Keyboard.FocusedElement)
{
return;
}
// If this is a right-click, we're done after setting
// the focus. Caret is position is only updated when a
// context menu opens.
if (e.ChangedButton != MouseButton.Left)
{
return;
}
if (This.TextView == null)
{
return;
}
// Finalize any active IME compositions.
// We have to do this async because it will potentially
// invalidate layout.
This.CompleteComposition();
if (!This.TextView.IsValid)
{
//
This.TextView.RenderScope.UpdateLayout();
if (This.TextView == null || !This.TextView.IsValid)
{
return;
}
}
if (!IsPointWithinInteractiveArea(This, e.GetPosition(This.UiScope)))
{
// Mouse down happened over padding area or chrome instead of RenderScope; just set focus
return;
}
// Scale back any background layout in progress.
This.TextView.ThrottleBackgroundTasksForUserInput();
// Get the mouse down position.
Point mouseDownPoint = e.GetPosition(This.TextView.RenderScope);
// Check if we're at a position where we need to begin a resize operation for table column
if (TextEditor.IsTableEditingEnabled && TextRangeEditTables.TableBorderHitTest(This.TextView, mouseDownPoint))
{
// Set up resize information, and create adorner
This._tableColResizeInfo = TextRangeEditTables.StartColumnResize(This.TextView, mouseDownPoint);
Invariant.Assert(This._tableColResizeInfo != null);
This._mouseCapturingInProgress = true;
try
{
This.UiScope.CaptureMouse();
}
finally
{
This._mouseCapturingInProgress = false;
}
}
else
{
This.Selection.BeginChange();
try
{
SetCaretPositionOnMouseEvent(This, mouseDownPoint, e.ChangedButton, e.ClickCount);
This._mouseCapturingInProgress = true;
This.UiScope.CaptureMouse();
}
finally
{
This._mouseCapturingInProgress = false;
This.Selection.EndChange();
}
}
}
// Token: 0x0600387F RID: 14463 RVA: 0x000FD304 File Offset: 0x000FB504
internal static void OnMouseDown(object sender, MouseButtonEventArgs e)
{
TextEditor textEditor = TextEditor._GetTextEditor(sender);
if (textEditor == null)
{
return;
}
textEditor.CloseToolTip();
if (!textEditor._IsEnabled)
{
return;
}
if (!textEditor.UiScope.Focusable)
{
return;
}
if (e.ButtonState == MouseButtonState.Released)
{
return;
}
e.Handled = true;
TextEditorMouse.MoveFocusToUiScope(textEditor);
if (textEditor.UiScope != Keyboard.FocusedElement)
{
return;
}
if (e.ChangedButton != MouseButton.Left)
{
return;
}
if (textEditor.TextView == null)
{
return;
}
textEditor.CompleteComposition();
if (!textEditor.TextView.IsValid)
{
textEditor.TextView.RenderScope.UpdateLayout();
if (textEditor.TextView == null || !textEditor.TextView.IsValid)
{
return;
}
}
if (!TextEditorMouse.IsPointWithinInteractiveArea(textEditor, e.GetPosition(textEditor.UiScope)))
{
return;
}
textEditor.TextView.ThrottleBackgroundTasksForUserInput();
Point position = e.GetPosition(textEditor.TextView.RenderScope);
if (TextEditor.IsTableEditingEnabled && TextRangeEditTables.TableBorderHitTest(textEditor.TextView, position))
{
textEditor._tableColResizeInfo = TextRangeEditTables.StartColumnResize(textEditor.TextView, position);
Invariant.Assert(textEditor._tableColResizeInfo != null);
textEditor._mouseCapturingInProgress = true;
try
{
textEditor.UiScope.CaptureMouse();
return;
}
finally
{
textEditor._mouseCapturingInProgress = false;
}
}
textEditor.Selection.BeginChange();
try
{
TextEditorMouse.SetCaretPositionOnMouseEvent(textEditor, position, e.ChangedButton, e.ClickCount);
textEditor._mouseCapturingInProgress = true;
textEditor.UiScope.CaptureMouse();
}
finally
{
textEditor._mouseCapturingInProgress = false;
textEditor.Selection.EndChange();
}
}