ui/views/cocoa/bridged_content_view.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_VIEWS_COCOA_BRIDGED_CONTENT_VIEW_H_
   6 #define UI_VIEWS_COCOA_BRIDGED_CONTENT_VIEW_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #import "ui/base/cocoa/tracking_area.h"
  11
  12 namespace ui {
  13 class TextInputClient;
  14 }
  15
  16 namespace views {
  17 class View;
  18 }
  19
  20 // The NSView that sits as the root contentView of the NSWindow, whilst it has
  21 // a views::RootView present. Bridges requests from Cocoa to the hosted
  22 // views::View.
  23 @interface BridgedContentView : NSView<NSTextInputClient> {
  24  @private
  25   // Weak. The hosted RootView, owned by hostedView_->GetWidget().
  26   views::View* hostedView_;
  27
  28   // Weak. If non-null the TextInputClient of the currently focused View in the
  29   // hierarchy rooted at |hostedView_|. Owned by the focused View.
  30   ui::TextInputClient* textInputClient_;
  31
  32   // A tracking area installed to enable mouseMoved events.
  33   ui::ScopedCrTrackingArea trackingArea_;
  34
  35   // Set to ignore window visibility in a subsequent call to drawRect:. Views
  36   // does not expect hidden windows to paint. However, when showing a window,
  37   // Cocoa first paints before updating visibility.
  38   BOOL willShow_;
  39 }
  40
  41 @property(readonly, nonatomic) views::View* hostedView;
  42 @property(assign, nonatomic) ui::TextInputClient* textInputClient;
  43 @property(assign, nonatomic) BOOL willShow;
  44
  45 // Initialize the NSView -> views::View bridge. |viewToHost| must be non-NULL.
  46 - (id)initWithView:(views::View*)viewToHost;
  47
  48 // Clear the hosted view. For example, if it is about to be destroyed.
  49 - (void)clearView;
  50
  51 @end
  52
  53 #endif  // UI_VIEWS_COCOA_BRIDGED_CONTENT_VIEW_H_