Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / chrome / browser / ui / cocoa / tabs / tab_strip_model_observer_bridge.h
1 // Copyright (c) 2012 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 CHROME_BROWSER_UI_COCOA_TABS_TAB_STRIP_MODEL_OBSERVER_BRIDGE_H_
6 #define CHROME_BROWSER_UI_COCOA_TABS_TAB_STRIP_MODEL_OBSERVER_BRIDGE_H_
7
8 #import <Foundation/Foundation.h>
9
10 #include "base/compiler_specific.h"
11 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
12
13 class TabStripModel;
14
15 namespace content {
16 class WebContents;
17 }
18
19 // A C++ bridge class to handle receiving notifications from the C++ tab strip
20 // model. When the caller allocates a bridge, it automatically registers for
21 // notifications from |model| and passes messages to |controller| via the
22 // informal protocol below. The owner of this object is responsible for deleting
23 // it (and thus unhooking notifications) before |controller| is destroyed.
24 class TabStripModelObserverBridge : public TabStripModelObserver {
25  public:
26   TabStripModelObserverBridge(TabStripModel* model, id controller);
27   ~TabStripModelObserverBridge() override;
28
29   // Overridden from TabStripModelObserver
30   void TabInsertedAt(content::WebContents* contents,
31                      int index,
32                      bool foreground) override;
33   void TabClosingAt(TabStripModel* tab_strip_model,
34                     content::WebContents* contents,
35                     int index) override;
36   void TabDetachedAt(content::WebContents* contents, int index) override;
37   void TabDeactivated(content::WebContents* contents) override;
38   void ActiveTabChanged(content::WebContents* old_contents,
39                         content::WebContents* new_contents,
40                         int index,
41                         int reason) override;
42   void TabSelectionChanged(TabStripModel* tab_strip_model,
43                            const ui::ListSelectionModel& old_model) override;
44   void TabMoved(content::WebContents* contents,
45                 int from_index,
46                 int to_index) override;
47   void TabChangedAt(content::WebContents* contents,
48                     int index,
49                     TabChangeType change_type) override;
50   void TabReplacedAt(TabStripModel* tab_strip_model,
51                      content::WebContents* old_contents,
52                      content::WebContents* new_contents,
53                      int index) override;
54   void TabMiniStateChanged(content::WebContents* contents, int index) override;
55   void TabStripEmpty() override;
56   void TabStripModelDeleted() override;
57
58  private:
59   id controller_;  // weak, owns me
60   TabStripModel* model_;  // weak, owned by Browser
61 };
62
63 // A collection of methods which can be selectively implemented by any
64 // Cocoa object to receive updates about changes to a tab strip model. It is
65 // ok to not implement them, the calling code checks before calling.
66 @interface NSObject(TabStripModelBridge)
67 - (void)insertTabWithContents:(content::WebContents*)contents
68                       atIndex:(NSInteger)index
69                  inForeground:(bool)inForeground;
70 - (void)tabClosingWithContents:(content::WebContents*)contents
71                        atIndex:(NSInteger)index;
72 - (void)tabDetachedWithContents:(content::WebContents*)contents
73                         atIndex:(NSInteger)index;
74 - (void)tabDeactivatedWithContents:(content::WebContents*)contents;
75 - (void)activateTabWithContents:(content::WebContents*)newContents
76                previousContents:(content::WebContents*)oldContents
77                         atIndex:(NSInteger)index
78                          reason:(int)reason;
79 - (void)tabMovedWithContents:(content::WebContents*)contents
80                    fromIndex:(NSInteger)from
81                      toIndex:(NSInteger)to;
82 - (void)tabChangedWithContents:(content::WebContents*)contents
83                        atIndex:(NSInteger)index
84                     changeType:(TabStripModelObserver::TabChangeType)change;
85 - (void)tabReplacedWithContents:(content::WebContents*)newContents
86                previousContents:(content::WebContents*)oldContents
87                         atIndex:(NSInteger)index;
88 - (void)tabMiniStateChangedWithContents:(content::WebContents*)contents
89                                 atIndex:(NSInteger)index;
90 - (void)tabStripEmpty;
91 - (void)tabStripModelDeleted;
92 - (void)tabSelectionChanged;
93 @end
94
95 #endif  // CHROME_BROWSER_UI_COCOA_TABS_TAB_STRIP_MODEL_OBSERVER_BRIDGE_H_