MacViews: Suppress visibility changes during an asynchronous close.

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 <memory>
@@ skipping 77 matching lines @@
   void SetBounds(const gfx::Rect& new_bounds);
 
   // Set or clears the views::View bridged by the content view. This does NOT
   // take ownership of |view|.
   void SetRootView(views::View* view);
 
   // Sets the desired visibility of the window and updates the visibility of
   // descendant windows where necessary.
   void SetVisibilityState(WindowVisibilityState new_state);
 
+  void CloseAsynchronously();
+
   // Acquiring mouse capture first steals capture from any existing
   // CocoaMouseCaptureDelegate, then captures all mouse events until released.
   void AcquireCapture();
   void ReleaseCapture();
   bool HasCapture();
 
   // Start moving the window, pinned to the mouse cursor, and monitor events.
   // Return MOVE_LOOP_SUCCESSFUL on mouse up or MOVE_LOOP_CANCELED on premature
   // termination via EndMoveLoop() or when window is destroyed during the drag.
   Widget::MoveLoopResult RunMoveLoop(const gfx::Vector2d& drag_offset);
@@ skipping 112 matching lines @@
 
   // Size the layer to match the client area bounds, taking into account display
   // scale factor.
   void UpdateLayerProperties();
 
   // Immediately return if there is a composited frame matching |size_in_dip|.
   // Otherwise, asks ui::WindowResizeHelperMac to run tasks until a matching
   // frame is ready, or a timeout occurs.
   void MaybeWaitForFrame(const gfx::Size& size_in_dip);
 
+  // Return true if the Widget delegate's modal type is window-modal. These
+  // display as a native window "sheet", and have a different lifetime to
+  // regular windows.
+  bool IsWindowModalSheet() const;
+
   // 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);
 
   // Overridden from CocoaMouseCaptureDelegate:
   void PostCapturedEvent(NSEvent* event) override;
   void OnMouseCaptureLost() override;
@@ skipping 64 matching lines @@
   bool window_visible_;
 
   // If true, the window is either visible, or wants to be visible but is
   // currently hidden due to having a hidden parent.
   bool wants_to_be_visible_;
 
   // 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;
 
+  // Set when an asynchronous close is pending. Visibility changes should be
+  // suppressed in this case. For a synchronous close (e.g. via -[NSWindow
+  // close]), the NSWindowDelegate is just set to nil.
+  bool close_pending_ = false;
+
   AssociatedViews associated_views_;
 
   DISALLOW_COPY_AND_ASSIGN(BridgedNativeWidget);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_COCOA_BRIDGED_NATIVE_WIDGET_H_