MacViews: Clip contents for non-rectangular windows.

ui/views/cocoa/bridged_native_widget.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_
 #define UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include <vector>
@@ skipping 13 matching lines @@
 @class BridgedContentView;
 @class ViewsNSWindowDelegate;
 
 namespace ui {
 class InputMethod;
 }
 
 namespace views {
 namespace test {
 class BridgedNativeWidgetTestApi;
+class BridgedNativeWidgetTest;
 }
 
 class CocoaMouseCapture;
 class NativeWidgetMac;
 class View;
 
 // A bridge to an NSWindow managed by an instance of NativeWidgetMac or
 // DesktopNativeWidgetMac. Serves as a helper class to bridge requests from the
 // NativeWidgetMac to the Cocoa window. Behaves a bit like an aura::Window.
 class VIEWS_EXPORT BridgedNativeWidget
@@ skipping 127 matching lines @@
   }
 
   bool target_fullscreen_state() const { return target_fullscreen_state_; }
   bool window_visible() { return window_visible_; }
 
   // Overridden from ui::internal::InputMethodDelegate:
   ui::EventDispatchDetails DispatchKeyEventPostIME(ui::KeyEvent* key) override;
 
  private:
   friend class test::BridgedNativeWidgetTestApi;
+  friend class test::BridgedNativeWidgetTest;
 
   // Closes all child windows. BridgedNativeWidget children will be destroyed.
   void RemoveOrDestroyChildren();
 
   // Notify descendants of a visibility change.
   void NotifyVisibilityChangeDown();
 
   // Essentially NativeWidgetMac::GetClientAreaBoundsInScreen().size(), but no
   // coordinate transformations are required from AppKit coordinates.
   gfx::Size GetClientAreaSize() const;
@@ skipping 17 matching lines @@
   // frame is ready, or a timeout occurs.
   void MaybeWaitForFrame(const gfx::Size& size_in_dip);
 
   // Show the window using -[NSApp beginSheet:..], modal for the parent window.
   void ShowAsModalSheet();
 
   // Sets mouseDownCanMoveWindow on |bridged_view_| and triggers the NSWindow to
   // update its draggable region.
   void SetDraggable(bool draggable);
 
+  // Calls updateWindowMask on |bridged_view_| and updates the mask path for
+  // |compositor_superview_|'s layer. If a mask layer does not yet exist, it
+  // creates a new one.
+  void UpdateMaskPath();
+
   // Overridden from CocoaMouseCaptureDelegate:
   void PostCapturedEvent(NSEvent* event) override;
   void OnMouseCaptureLost() override;
 
   // Returns a properties dictionary associated with the NSWindow.
   // Creates and attaches a new instance if not found.
   NSMutableDictionary* GetWindowProperties() const;
 
   // Overridden from FocusChangeListener:
   void OnWillChangeFocus(View* focused_before,
@@ skipping 60 matching lines @@
   // If true, the window has been made visible or changed shape and the window
   // shadow needs to be invalidated when a frame is received for the new shape.
   bool invalidate_shadow_on_frame_swap_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(BridgedNativeWidget);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_