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| 1 // Copyright (c) 2010 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_TAB_STRIP_MODEL_OBSERVER_BRIDGE_H_ | |
| 6 #define CHROME_BROWSER_UI_COCOA_TAB_STRIP_MODEL_OBSERVER_BRIDGE_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #import <Foundation/Foundation.h> | |
| 10 | |
| 11 #include "chrome/browser/tabs/tab_strip_model_observer.h" | |
| 12 | |
| 13 class TabContentsWrapper; | |
| 14 class TabStripModel; | |
| 15 | |
| 16 // A C++ bridge class to handle receiving notifications from the C++ tab strip | |
| 17 // model. When the caller allocates a bridge, it automatically registers for | |
| 18 // notifications from |model| and passes messages to |controller| via the | |
| 19 // informal protocol below. The owner of this object is responsible for deleting | |
| 20 // it (and thus unhooking notifications) before |controller| is destroyed. | |
| 21 class TabStripModelObserverBridge : public TabStripModelObserver { | |
| 22 public: | |
| 23 TabStripModelObserverBridge(TabStripModel* model, id controller); | |
| 24 virtual ~TabStripModelObserverBridge(); | |
| 25 | |
| 26 // Overridden from TabStripModelObserver | |
| 27 virtual void TabInsertedAt(TabContentsWrapper* contents, | |
| 28 int index, | |
| 29 bool foreground); | |
| 30 virtual void TabClosingAt(TabStripModel* tab_strip_model, | |
| 31 TabContentsWrapper* contents, | |
| 32 int index); | |
| 33 virtual void TabDetachedAt(TabContentsWrapper* contents, int index); | |
| 34 virtual void TabSelectedAt(TabContentsWrapper* old_contents, | |
| 35 TabContentsWrapper* new_contents, | |
| 36 int index, | |
| 37 bool user_gesture); | |
| 38 virtual void TabMoved(TabContentsWrapper* contents, | |
| 39 int from_index, | |
| 40 int to_index); | |
| 41 virtual void TabChangedAt(TabContentsWrapper* contents, int index, | |
| 42 TabChangeType change_type); | |
| 43 virtual void TabReplacedAt(TabStripModel* tab_strip_model, | |
| 44 TabContentsWrapper* old_contents, | |
| 45 TabContentsWrapper* new_contents, | |
| 46 int index); | |
| 47 virtual void TabMiniStateChanged(TabContentsWrapper* contents, int index); | |
| 48 virtual void TabStripEmpty(); | |
| 49 virtual void TabStripModelDeleted(); | |
| 50 | |
| 51 private: | |
| 52 id controller_; // weak, owns me | |
| 53 TabStripModel* model_; // weak, owned by Browser | |
| 54 }; | |
| 55 | |
| 56 // A collection of methods which can be selectively implemented by any | |
| 57 // Cocoa object to receive updates about changes to a tab strip model. It is | |
| 58 // ok to not implement them, the calling code checks before calling. | |
| 59 @interface NSObject(TabStripModelBridge) | |
| 60 - (void)insertTabWithContents:(TabContentsWrapper*)contents | |
| 61 atIndex:(NSInteger)index | |
| 62 inForeground:(bool)inForeground; | |
| 63 - (void)tabClosingWithContents:(TabContentsWrapper*)contents | |
| 64 atIndex:(NSInteger)index; | |
| 65 - (void)tabDetachedWithContents:(TabContentsWrapper*)contents | |
| 66 atIndex:(NSInteger)index; | |
| 67 - (void)selectTabWithContents:(TabContentsWrapper*)newContents | |
| 68 previousContents:(TabContentsWrapper*)oldContents | |
| 69 atIndex:(NSInteger)index | |
| 70 userGesture:(bool)wasUserGesture; | |
| 71 - (void)tabMovedWithContents:(TabContentsWrapper*)contents | |
| 72 fromIndex:(NSInteger)from | |
| 73 toIndex:(NSInteger)to; | |
| 74 - (void)tabChangedWithContents:(TabContentsWrapper*)contents | |
| 75 atIndex:(NSInteger)index | |
| 76 changeType:(TabStripModelObserver::TabChangeType)change; | |
| 77 - (void)tabReplacedWithContents:(TabContentsWrapper*)newContents | |
| 78 previousContents:(TabContentsWrapper*)oldContents | |
| 79 atIndex:(NSInteger)index; | |
| 80 - (void)tabMiniStateChangedWithContents:(TabContentsWrapper*)contents | |
| 81 atIndex:(NSInteger)index; | |
| 82 - (void)tabStripEmpty; | |
| 83 - (void)tabStripModelDeleted; | |
| 84 @end | |
| 85 | |
| 86 #endif // CHROME_BROWSER_UI_COCOA_TAB_STRIP_MODEL_OBSERVER_BRIDGE_H_ | |
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