private void ResetNavigation()
{
if (BundleRuntime.Instance.State == BundleRuntimeState.Stopping)
{
return;
}
Action resetNavigation = () =>
{ // 重新初始化TreeView
SkinUserControl = new Settings();
WelcomeControl = new Introduction();
LayoutDockPanel.Children.Clear();
ContentQueue.Clear();
OpenedPagesCache.Clear();
HideSidebar();
SideBars.Clear();
SideBarSettings.Clear();
TreeViewItemSelectionQueue.Clear();
TopTreeViewItemNavigationNodeTuples.Clear();
NavigationTreeView.Items.Clear();
InitializeNavigationTreeView();
if (BundleActivator.PermissionServiceTracker.IsServiceAvailable)
{
SetCurrentUser(BundleActivator.PermissionServiceTracker.DefaultOrFirstService.CurrentUserName);
}
ShowContent(WelcomeControl);
};
Dispatcher.Invoke(resetNavigation); // 由界面代理线程来执行UI更新。
}
/// <summary>
/// 关闭当前用户控件。
/// </summary>
public void CloseCurrentContent()
{
if (ContentQueue.Count < 2)
{
return;
}
bool confirm = ConfigurationService.Get(BundleActivator.Bundle, "ConfirmClosingWindow", true);
if (confirm && ModernDialog.ShowMessage(
"你确实是否要关闭当前窗口？",
"关闭窗口",
MessageBoxButton.YesNo) != MessageBoxResult.Yes)
{
return;
}
HideSidebar();
// 删除当前显示的控件，即最后一个
var content = ContentQueue[ContentQueue.Count - 1];
ContentQueue.Remove(content);
// 删除缓存
var key = string.Empty;
foreach (var pair in OpenedPagesCache)
{
if (pair.Value.Equals(content))
{
key = pair.Key;
}
}
if (!string.IsNullOrEmpty(key))
{
OpenedPagesCache.Remove(key);
}
// 从容器中删除该控件
LayoutDockPanel.Children.Remove(content);
// 显示倒数第二个用户控件
ShowContent(ContentQueue[ContentQueue.Count - 1]);
if (TreeViewItemSelectionQueue.Count > 0) // 设置当前节点选中状态为false，并且删除其选中队列
{
(TreeViewItemSelectionQueue[TreeViewItemSelectionQueue.Count - 1] as TreeViewItem).IsSelected = false;
TreeViewItemSelectionQueue.RemoveAt(TreeViewItemSelectionQueue.Count - 1);
}
if (TreeViewItemSelectionQueue.Count > 0) // 选中前一个节点
{
(TreeViewItemSelectionQueue[TreeViewItemSelectionQueue.Count - 1] as TreeViewItem).IsSelected = true;
}
}
