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.
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_
8 #import <Foundation/Foundation.h>
10 #include "base/compiler_specific.h"
11 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
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 {
26 TabStripModelObserverBridge(TabStripModel* model, id controller);
27 ~TabStripModelObserverBridge() override;
29 // Overridden from TabStripModelObserver
30 void TabInsertedAt(content::WebContents* contents,
32 bool foreground) override;
33 void TabClosingAt(TabStripModel* tab_strip_model,
34 content::WebContents* contents,
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,
42 void TabSelectionChanged(TabStripModel* tab_strip_model,
43 const ui::ListSelectionModel& old_model) override;
44 void TabMoved(content::WebContents* contents,
46 int to_index) override;
47 void TabChangedAt(content::WebContents* contents,
49 TabChangeType change_type) override;
50 void TabReplacedAt(TabStripModel* tab_strip_model,
51 content::WebContents* old_contents,
52 content::WebContents* new_contents,
54 void TabMiniStateChanged(content::WebContents* contents, int index) override;
55 void TabStripEmpty() override;
56 void TabStripModelDeleted() override;
59 id controller_; // weak, owns me
60 TabStripModel* model_; // weak, owned by Browser
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
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;
95 #endif // CHROME_BROWSER_UI_COCOA_TABS_TAB_STRIP_MODEL_OBSERVER_BRIDGE_H_