ToolStripMenuItem IUIMenuTreeVisitor <ToolStripMenuItem> .VisitElement(UIMenuNode.Element element)
{
if (element.TextProvider == null && element.IconProvider == null)
{
return(null);
}
UIActionState currentActionState = ActionHandler.TryPerformAction(element.Action, false);
if (!currentActionState.Visible)
{
return(null);
}
var menuItem = UIActionToolStripMenuItem.CreateFrom(element);
menuItem.Update(currentActionState);
var actionHandler = ActionHandler;
menuItem.Click += (_, __) =>
{
try
{
actionHandler.TryPerformAction(element.Action, true);
}
catch (Exception exc)
{
MessageBox.Show(exc.Message);
}
};
return(menuItem);
}
private void MainMenuItem_DropDownOpening(object sender, EventArgs e)
{
var mainMenuItem = (ToolStripDropDownItem)sender;
// Use DefaultForeColor rather than titleBarForeColor when dropped down.
mainMenuItem.ForeColor = DefaultForeColor;
// Remember last toolstrip separator before a developer tool item with FirstInGroup set.
ToolStripSeparator lastSeparator = null;
foreach (ToolStripItem toolStripItem in mainMenuItem.DropDownItems)
{
if (toolStripItem is UIActionToolStripMenuItem menuItem)
{
UIActionState actionState = mainMenuActionHandler.TryPerformAction(menuItem.Action, false);
menuItem.Update(actionState);
if (Session.IsDeveloperTool(menuItem.Action))
{
// Hide instead of disable developer tool items.
bool visible = actionState.UIActionVisibility == UIActionVisibility.Enabled;
menuItem.Visible = visible;
if (lastSeparator != null)
{
lastSeparator.Visible = visible;
}
}
}
lastSeparator = toolStripItem as ToolStripSeparator;
}
}
public void Update(UIActionState currentActionState)
{
Enabled = currentActionState.Enabled;
Checked = currentActionState.Checked;
}
private protected MenuCaptionBarForm()
{
SetStyle(ControlStyles.AllPaintingInWmPaint
| ControlStyles.UserPaint
| ControlStyles.UserMouse
| ControlStyles.OptimizedDoubleBuffer
| ControlStyles.FixedHeight
| ControlStyles.FixedWidth
| ControlStyles.ResizeRedraw
| ControlStyles.Opaque, true);
minimizeButton = CreateCaptionButton();
minimizeButton.Click += (_, __) => WindowState = FormWindowState.Minimized;
maximizeButton = CreateCaptionButton();
maximizeButton.Click += (_, __) =>
{
inRestoreCommand = WindowState == FormWindowState.Maximized;
try
{
WindowState = WindowState == FormWindowState.Maximized ? FormWindowState.Normal : FormWindowState.Maximized;
}
finally
{
inRestoreCommand = false;
}
UpdateMaximizeButtonIcon();
};
// Specialized save button which binds on the SaveToFile UIAction.
saveButton = CreateCaptionButton();
saveButton.Visible = false;
saveButton.Click += (_, __) =>
{
try
{
ActionHandler.TryPerformAction(SharedUIAction.SaveToFile.Action, true);
}
catch (Exception exc)
{
MessageBox.Show(exc.Message);
}
};
ActionHandler.UIActionsInvalidated += _ =>
{
// Update the save button each time the handler is invalidated.
// Some kind of checked state doesn't seem to be supported, so ignore UIActionState.Checked.
UIActionState currentActionState = ActionHandler.TryPerformAction(SharedUIAction.SaveToFile.Action, false);
saveButton.Visible = currentActionState.Visible;
saveButton.Enabled = currentActionState.Enabled;
if (!saveButton.Enabled)
{
saveButton.FlatAppearance.BorderColor = ObservableStyle.BackColor;
}
};
closeButton = CreateCaptionButton();
closeButton.Click += (_, __) => Close();
MainMenuStrip = new MenuStrip();
SuspendLayout();
Controls.Add(minimizeButton);
Controls.Add(maximizeButton);
Controls.Add(saveButton);
Controls.Add(closeButton);
Controls.Add(MainMenuStrip);
ResumeLayout();
ToolTip = new ToolTip();
UpdateToolTips();
ObservableStyle.NotifyChange += ObservableStyle_NotifyChange;
AllowTransparency = true;
TransparencyKey = ObservableStyle.SuggestedTransparencyKey;
mainMenuActionHandler = new UIActionHandler();
this.BindActions(StandardUIActionBindings);
Session.Current.CurrentLocalizerChanged += CurrentLocalizerChanged;
}
