/// <summary>
/// Fires BringPointIntoViewCompleted event.
/// </summary>
/// <param name="e">Event arguments for the BringPointIntoViewCompleted event.</param>
protected virtual void OnBringPointIntoViewCompleted(BringPointIntoViewCompletedEventArgs e)
{
if (this.BringPointIntoViewCompleted != null)
{
this.BringPointIntoViewCompleted(this, e);
}
}
/// <summary>
/// Handler for ITextView.BringPointIntoViewCompleted event.
/// </summary>
private void HandleBringPointIntoViewCompleted(object sender, BringPointIntoViewCompletedEventArgs e)
{
ITextPointer cursorPosition;
Rect lastCharacterRect;
Invariant.Assert(sender is ITextView);
((ITextView)sender).BringPointIntoViewCompleted -= new BringPointIntoViewCompletedEventHandler(HandleBringPointIntoViewCompleted);
// If the mouse selection state is not available, it means that the mouse was
// already released. It may happen when there is delay in view transitions
// (i.e. page transition in DocumentViewerBase).
// In such case ignore this event.
if (_mouseSelectionState == null)
{
return;
}
_mouseSelectionState.BringIntoViewInProgress = false;
if (e != null && !e.Cancelled && e.Error == null)
{
Invariant.Assert(e.UserState == this && this.TextView == sender);
cursorPosition = e.Position;
if (cursorPosition != null)
{
// Check end-of-container condition
if (cursorPosition.GetNextInsertionPosition(LogicalDirection.Forward) == null &&
cursorPosition.ParentType != null) //
{
// We are at the end of text container. Check whether mouse is farther than a last character
lastCharacterRect = cursorPosition.GetCharacterRect(LogicalDirection.Backward);
if (e.Point.X > lastCharacterRect.X + lastCharacterRect.Width)
{
cursorPosition = this.TextContainer.End;
}
}
// Move the caret/selection to match the cursor position.
this.Selection.ExtendSelectionByMouse(cursorPosition, _forceWordSelection, _forceParagraphSelection);
}
else
{
CancelExtendSelection();
}
}
else
{
CancelExtendSelection();
}
}