void hexBox_ContextMenuOpening(object sender, ContextMenuEventArgs e)
{
bool openedFromKeyboard = e.CursorLeft == -1 && e.CursorTop == -1;
TextViewContext context = TextViewContext.Create(hexBox: hexBox, openedFromKeyboard: openedFromKeyboard);
ContextMenu menu;
if (ShowContextMenu(context, out menu))
{
var rect = hexBox.GetCaretWindowRect();
if (rect != null && openedFromKeyboard)
{
var pos = rect.Value.BottomLeft;
menu.HorizontalOffset = pos.X;
menu.VerticalOffset = pos.Y;
ContextMenuService.SetPlacement(hexBox, PlacementMode.Relative);
ContextMenuService.SetPlacementTarget(hexBox, hexBox);
menu.Closed += (s, e2) => {
hexBox.ClearValue(ContextMenuService.PlacementProperty);
hexBox.ClearValue(ContextMenuService.PlacementTargetProperty);
};
}
else
{
hexBox.ClearValue(ContextMenuService.PlacementProperty);
hexBox.ClearValue(ContextMenuService.PlacementTargetProperty);
}
hexBox.ContextMenu = menu;
}
else
{
// hide the context menu.
e.Handled = true;
}
}
void listBox_ContextMenuOpening(object sender, ContextMenuEventArgs e)
{
TextViewContext context = TextViewContext.Create(listBox: listBox);
ContextMenu menu;
if (ShowContextMenu(context, out menu))
{
listBox.ContextMenu = menu;
}
else
{
// hide the context menu.
e.Handled = true;
}
}
void textView_ContextMenuOpening(object sender, ContextMenuEventArgs e)
{
TextViewContext context = TextViewContext.Create(textView: textView);
ContextMenu menu;
if (ShowContextMenu(context, out menu))
{
textView.ContextMenu = menu;
}
else
{
// hide the context menu.
e.Handled = true;
}
}
void listBox_ContextMenuOpening(object sender, CancelEventArgs e)
{
TextViewContext context = TextViewContext.Create(listBox: listBox);
ContextMenu menu = (ContextMenu)sender;
if (ShowContextMenu(context, out IEnumerable <IControl> items))
{
menu.Items = items;
}
else
{
// hide the context menu.
e.Cancel = true;
}
}
void dataGrid_ContextMenuOpening(object sender, ContextMenuEventArgs e)
{
TextViewContext context = TextViewContext.Create(dataGrid: dataGrid);
ContextMenu menu;
if (ShowContextMenu(context, out menu))
{
dataGrid.ContextMenu = menu;
}
else
{
// hide the context menu.
e.Handled = true;
}
}
void treeView_ContextMenuOpening(object sender, ContextMenuEventArgs e)
{
TextViewContext context = TextViewContext.Create(treeView);
if (context.SelectedTreeNodes.Length == 0)
{
e.Handled = true; // don't show the menu
return;
}
ContextMenu menu;
if (ShowContextMenu(context, out menu))
{
treeView.ContextMenu = menu;
}
else
{
// hide the context menu.
e.Handled = true;
}
}
void treeView_ContextMenuOpening(object sender, CancelEventArgs e)
{
TextViewContext context = TextViewContext.Create(treeView);
if (context.SelectedTreeNodes.Length == 0)
{
e.Cancel = true; // don't show the menu
return;
}
ContextMenu menu = (ContextMenu)sender;
if (ShowContextMenu(context, out IEnumerable <IControl> items))
{
menu.Items = items;
}
else
{
// hide the context menu.
e.Cancel = true;
}
}
void textView_ContextMenuOpening(object sender, ContextMenuEventArgs e)
{
bool openedFromKeyboard = e.CursorLeft == -1 && e.CursorTop == -1;
TextViewContext context = TextViewContext.Create(textView: textView, openedFromKeyboard: openedFromKeyboard);
ContextMenu menu;
if (ShowContextMenu(context, out menu))
{
if (openedFromKeyboard)
{
var scrollInfo = (System.Windows.Controls.Primitives.IScrollInfo)textView.TextEditor.TextArea.TextView;
var pos = textView.TextEditor.TextArea.TextView.GetVisualPosition(textView.TextEditor.TextArea.Caret.Position, ICSharpCode.AvalonEdit.Rendering.VisualYPosition.TextBottom);
pos = new Point(pos.X - scrollInfo.HorizontalOffset, pos.Y - scrollInfo.VerticalOffset);
menu.HorizontalOffset = pos.X;
menu.VerticalOffset = pos.Y;
ContextMenuService.SetPlacement(textView, System.Windows.Controls.Primitives.PlacementMode.Relative);
ContextMenuService.SetPlacementTarget(textView, textView.TextEditor.TextArea.TextView);
menu.Closed += (s, e2) => {
textView.ClearValue(ContextMenuService.PlacementProperty);
textView.ClearValue(ContextMenuService.PlacementTargetProperty);
};
}
else
{
textView.ClearValue(ContextMenuService.PlacementProperty);
textView.ClearValue(ContextMenuService.PlacementTargetProperty);
}
textView.ContextMenu = menu;
}
else
{
// hide the context menu.
e.Handled = true;
}
}
