// Token: 0x060085BF RID: 34239 RVA: 0x0024AB9C File Offset: 0x00248D9C
internal void TargetOnDrop(DragEventArgs e)
{
if (!this.AllowDragDrop(e))
{
return;
}
ITextSelection selection = this._textEditor.Selection;
Invariant.Assert(selection != null);
if (e.Data == null || e.AllowedEffects == DragDropEffects.None)
{
e.Effects = DragDropEffects.None;
return;
}
if ((e.KeyStates & DragDropKeyStates.ControlKey) != DragDropKeyStates.None)
{
e.Effects = DragDropEffects.Copy;
}
else if (e.Effects != DragDropEffects.Copy)
{
e.Effects = DragDropEffects.Move;
}
if (!this._textEditor.TextView.Validate(e.GetPosition(this._textEditor.TextView.RenderScope)))
{
e.Effects = DragDropEffects.None;
return;
}
ITextPointer dropPosition = this.GetDropPosition(this._textEditor.TextView.RenderScope, e.GetPosition(this._textEditor.TextView.RenderScope));
if (dropPosition != null)
{
if (this._dragSourceTextRange != null && this._dragSourceTextRange.Start.TextContainer == selection.Start.TextContainer && !selection.IsEmpty && this.IsSelectionContainsDropPosition(selection, dropPosition))
{
selection.SetCaretToPosition(dropPosition, LogicalDirection.Backward, false, true);
e.Effects = DragDropEffects.None;
e.Handled = true;
}
else
{
using (selection.DeclareChangeBlock())
{
if ((e.Effects & DragDropEffects.Move) != DragDropEffects.None && this._dragSourceTextRange != null && this._dragSourceTextRange.Start.TextContainer == selection.Start.TextContainer)
{
this._dragSourceTextRange.Text = string.Empty;
}
selection.SetCaretToPosition(dropPosition, LogicalDirection.Backward, false, true);
e.Handled = TextEditorCopyPaste._DoPaste(this._textEditor, e.Data, true);
}
}
if (e.Handled)
{
this.Win32SetForegroundWindow();
this._textEditor.UiScope.Focus();
return;
}
e.Effects = DragDropEffects.None;
}
}
internal static void Paste(TextEditor This)
{
if (!SecurityHelper.CallerHasAllClipboardPermission())
{
return;
}
if (This.Selection.IsTableCellRange)
{
return;
}
TextEditorTyping._FlushPendingInputItems(This);
TextEditorTyping._BreakTypingSequence(This);
IDataObject dataObject;
try
{
dataObject = Clipboard.GetDataObject();
}
catch (ExternalException)
{
dataObject = null;
}
bool coversEntireContent = This.Selection.CoversEntireContent;
if (dataObject != null)
{
using (This.Selection.DeclareChangeBlock())
{
TextEditorSelection._ClearSuggestedX(This);
if (TextEditorCopyPaste._DoPaste(This, dataObject, false))
{
This.Selection.SetCaretToPosition(This.Selection.End, LogicalDirection.Backward, false, true);
if (This.Selection is TextSelection)
{
((TextSelection)This.Selection).ClearSpringloadFormatting();
}
}
}
}
if (coversEntireContent)
{
This.Selection.ValidateLayout();
}
}
/// <summary>
/// Paste worker.
/// </summary>
internal static void Paste(TextEditor This)
{
if (This.Selection.IsTableCellRange)
{
// We do not support clipboard for table selection so far
// Word behavior: When source range is text segment then this segment is pasted
// into each table cell overriding its current content.
// If source range is table range then it is repeated on target -
// cell by cell in circular manner.
return;
}
TextEditorTyping._FlushPendingInputItems(This);
TextEditorTyping._BreakTypingSequence(This);
// Get DataObject from the Clipboard
IDataObject dataObject;
try
{
dataObject = Clipboard.GetDataObject();
}
catch (ExternalException)
{
// Clipboard is failed to get the data object.
// One of reason should be the opening fail of Clipboard by the destroyed hwnd.
dataObject = null;
// must re-throw ???
}
bool forceLayoutUpdate = This.Selection.CoversEntireContent;
if (dataObject != null)
{
using (This.Selection.DeclareChangeBlock())
{
// Forget previously suggested horizontal position
TextEditorSelection._ClearSuggestedX(This);
// _DoPaste raises a public event -- could raise recoverable exception.
if (TextEditorCopyPaste._DoPaste(This, dataObject, /*isDragDrop:*/ false))
{
// Collapse selection to the end
// Use backward direction to stay oriented towards pasted content
This.Selection.SetCaretToPosition(This.Selection.End, LogicalDirection.Backward, /*allowStopAtLineEnd:*/ false, /*allowStopNearSpace:*/ true);
// Clear springload formatting
if (This.Selection is TextSelection)
{
((TextSelection)This.Selection).ClearSpringloadFormatting();
}
}
} // PUBLIC EVENT RAISED HERE AS CHANGEBLOCK CLOSES!
}
// If we replaced the entire document content, background layout will
// kick in. Force it to complete now.
if (forceLayoutUpdate)
{
This.Selection.ValidateLayout();
}
}
/// <summary>
/// Called from an event reporting that the drop happened.
/// </summary>
internal void TargetOnDrop(DragEventArgs e)
{
//
if (!AllowDragDrop(e))
{
return;
}
ITextSelection selection = _textEditor.Selection;
Invariant.Assert(selection != null);
if (e.Data == null || e.AllowedEffects == DragDropEffects.None)
{
e.Effects = DragDropEffects.None;
return;
}
if ((int)(e.KeyStates & DragDropKeyStates.ControlKey) != 0)
{
e.Effects = DragDropEffects.Copy;
}
else if (e.Effects != DragDropEffects.Copy)
{
e.Effects = DragDropEffects.Move;
}
// Force a layout update on the content so the GetTextPositionFromPoint
// call following can succeed.
if (!_textEditor.TextView.Validate(e.GetPosition(_textEditor.TextView.RenderScope)))
{
e.Effects = DragDropEffects.None;
return;
}
// Get the text position from the text target point.
ITextPointer dropPosition = GetDropPosition(_textEditor.TextView.RenderScope as Visual, e.GetPosition(_textEditor.TextView.RenderScope));
if (dropPosition != null)
{
if (_dragSourceTextRange != null && _dragSourceTextRange.Start.TextContainer == selection.Start.TextContainer &&
!selection.IsEmpty && IsSelectionContainsDropPosition(selection, dropPosition))
{
// When we drop inside of selected area, we
// should not select dropped content,
// otherwise it looks for end user as if
// nothing happened.
// Set caret to this position.
selection.SetCaretToPosition(dropPosition, LogicalDirection.Backward, /*allowStopAtLineEnd:*/ false, /*allowStopNearSpace:*/ true);
// Indicate the resulting effect of an action
// Note that dropResult may stay equal to DragDropResult.Drop
e.Effects = DragDropEffects.None;
// Mark the event as handled
e.Handled = true;
}
else
{
using (selection.DeclareChangeBlock())
{
// For MaxLength filter work correctly in case
// when we dragdrop within the same TextContainer,
// we need to delete dragged content first -
// before dropping when filtering will occur.
// Note, that this will duplicate operation on
// source side, but it will be void deletion action
if ((e.Effects & DragDropEffects.Move) != 0 && //
_dragSourceTextRange != null && _dragSourceTextRange.Start.TextContainer == selection.Start.TextContainer)
{
_dragSourceTextRange.Text = String.Empty;
}
// When we drop outside of selection,
// we should ignore current selection and
// move ip into dropping point.
selection.SetCaretToPosition(dropPosition, LogicalDirection.Backward, /*allowStopAtLineEnd:*/ false, /*allowStopNearSpace:*/ true);
// _DoPaste raises a public event -- could raise recoverable exception.
e.Handled = TextEditorCopyPaste._DoPaste(_textEditor, e.Data, /*isDragDrop:*/ true);
//
}
}
if (e.Handled)
{
// Set the drop target as the foreground window.
Win32SetForegroundWindow();
// Set the focus into the drop target.
_textEditor.UiScope.Focus();
}
else
{
// When a target did not handle a drop event, we must
// prevent from deleting a content on source end -
// otherwise we'll have data loss
e.Effects = DragDropEffects.None;
}
}
}
internal static void Paste(TextEditor This)
{
// Don't try anything if the caller doesn't have the rights to read from the clipboard...
if (!SecurityHelper.CallerHasAllClipboardPermission())
{
return;
}
if (This.Selection.IsTableCellRange)
{
//
return;
}
TextEditorTyping._FlushPendingInputItems(This);
TextEditorTyping._BreakTypingSequence(This);
// Get DataObject from the Clipboard
IDataObject dataObject;
try
{
dataObject = Clipboard.GetDataObject();
}
catch (ExternalException)
{
// Clipboard is failed to get the data object.
// One of reason should be the opening fail of Clipboard by the destroyed hwnd.
dataObject = null;
//
}
bool forceLayoutUpdate = This.Selection.CoversEntireContent;
if (dataObject != null)
{
using (This.Selection.DeclareChangeBlock())
{
// Forget previously suggested horizontal position
TextEditorSelection._ClearSuggestedX(This);
// _DoPaste raises a public event -- could raise recoverable exception.
if (TextEditorCopyPaste._DoPaste(This, dataObject, /*isDragDrop:*/ false))
{
// Collapse selection to the end
// Use backward direction to stay oriented towards pasted content
This.Selection.SetCaretToPosition(This.Selection.End, LogicalDirection.Backward, /*allowStopAtLineEnd:*/ false, /*allowStopNearSpace:*/ true);
// Clear springload formatting
if (This.Selection is TextSelection)
{
((TextSelection)This.Selection).ClearSpringloadFormatting();
}
}
} // PUBLIC EVENT RAISED HERE AS CHANGEBLOCK CLOSES!
}
// If we replaced the entire document content, background layout will
// kick in. Force it to complete now.
if (forceLayoutUpdate)
{
This.Selection.ValidateLayout();
}
}
