/// <summary>
/// Called when a <see cref="T:System.Windows.Controls.Button" /> is clicked.
/// </summary>
protected override void OnClick()
{
var actions = GetViewActions();
if (actions == null)
{
base.OnClick();
return;
}
var menu = new ContextMenu();
var isFirst = true;
foreach (var action in actions.Where(a => a.Availability == ViewActionAvailabilities.Available && a.Visibility == Visibility.Visible))
{
var menuItem = new ViewActionMenuItem {
DataContext = action, Command = action
};
if (action.ActionView == null)
{
menuItem.Header = GetMenuTitle(action);
}
else
{
ElementHelper.DetachElementFromParent(action.ActionView);
menuItem.Header = action.ActionView;
if (action.ActionViewModel != null)
{
action.ActionView.DataContext = action.ActionViewModel;
}
}
if (!isFirst && action.BeginGroup)
{
menu.Items.Add(new Separator());
}
if (action.ViewActionType == ViewActionTypes.Toggle)
{
menuItem.IsCheckable = true;
menuItem.IsChecked = action.IsChecked;
//menuItem.SetBinding(MenuItem.IsCheckedProperty, new Binding("IsChecked") {Source = action});
}
var realAction = action as ViewAction;
if (realAction != null && realAction.HasBrush)
{
var icon = new ThemeIcon {
FallbackIconResourceKey = string.Empty
};
icon.SetBinding(ThemeIcon.IconResourceKeyProperty, new Binding("BrushResourceKey"));
menuItem.Icon = icon;
}
HandleMenuShortcutKey(menuItem, action);
menu.Items.Add(menuItem);
isFirst = false;
}
menu.Placement = PlacementMode.Bottom;
menu.PlacementTarget = this;
menu.IsOpen = true;
}
/// <summary>
/// Adds sub-items for the specified menu item and category
/// </summary>
/// <param name="menuItem">Parent menu item</param>
/// <param name="category">Category we are interested in</param>
/// <param name="actions">Actions to consider</param>
/// <param name="indentLevel">Current hierarchical indentation level</param>
private void PopulateSubCategories(MenuItem menuItem, ViewActionCategory category, IEnumerable <IViewAction> actions, int indentLevel = 0)
{
var populatedCategories = new List <string>();
if (actions == null)
{
return;
}
var viewActions = actions as IViewAction[] ?? actions.ToArray();
var matchingActions = ViewActionPolicy != null?ViewActionPolicy.GetAllActionsForCategory(viewActions, category, indentLevel, orderByGroupTitle : false, viewModel : this) : ViewActionHelper.GetAllActionsForCategory(viewActions, category, indentLevel, orderByGroupTitle: false);
var addedMenuItems = 0;
foreach (var matchingAction in matchingActions)
{
if (addedMenuItems > 0 && matchingAction.BeginGroup)
{
menuItem.Items.Add(new Separator());
}
if (matchingAction.Categories != null && matchingAction.Categories.Count > indentLevel + 1 && !populatedCategories.Contains(matchingAction.Categories[indentLevel].Id)) // This is further down in a sub-category even
{
populatedCategories.Add(matchingAction.Categories[indentLevel].Id);
var newMenuItem = new ViewActionMenuItem {
Header = matchingAction.Categories[indentLevel + 1].Caption
};
var icon = new ThemeIcon {
UseFallbackIcon = false
};
icon.SetBinding(ThemeIcon.IconResourceKeyProperty, new Binding("BrushResourceKey"));
newMenuItem.Icon = icon;
CreateMenuItemBinding(matchingAction, newMenuItem);
PopulateSubCategories(newMenuItem, matchingAction.Categories[indentLevel + 1], viewActions, indentLevel + 1);
menuItem.Items.Add(newMenuItem);
addedMenuItems++;
}
else
{
var newMenuItem1 = new ViewActionMenuItem {
Header = GetMenuTitle(matchingAction), Command = matchingAction, DataContext = matchingAction
};
HandleMenuShortcutKey(newMenuItem1, matchingAction);
if (matchingAction.ViewActionType == ViewActionTypes.Toggle)
{
newMenuItem1.IsCheckable = true;
newMenuItem1.SetBinding(MenuItem.IsCheckedProperty, new Binding("IsChecked")
{
Source = matchingAction, Mode = BindingMode.OneWay
});
}
var realMatchingAction = matchingAction as ViewAction;
if (realMatchingAction != null && !string.IsNullOrEmpty(realMatchingAction.ToolTipText))
{
newMenuItem1.ToolTip = realMatchingAction.ToolTipText;
}
var icon = new ThemeIcon {
FallbackIconResourceKey = string.Empty
};
icon.SetBinding(ThemeIcon.IconResourceKeyProperty, new Binding("BrushResourceKey"));
newMenuItem1.Icon = icon;
CreateMenuItemBinding(matchingAction, newMenuItem1);
menuItem.Items.Add(newMenuItem1);
addedMenuItems++;
}
}
}