Index: ios/shared/chrome/browser/tabs/web_state_list_observer_bridge.h |
diff --git a/ios/shared/chrome/browser/tabs/web_state_list_observer_bridge.h b/ios/shared/chrome/browser/tabs/web_state_list_observer_bridge.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3cfbe2da7394ae0f74444167ac1277bf6713a4c6 |
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+++ b/ios/shared/chrome/browser/tabs/web_state_list_observer_bridge.h |
@@ -0,0 +1,75 @@ |
+// Copyright 2017 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 IOS_SHARED_CHROME_BROWSER_TABS_WEB_STATE_LIST_OBSERVER_BRIDGE_H_ |
+#define IOS_SHARED_CHROME_BROWSER_TABS_WEB_STATE_LIST_OBSERVER_BRIDGE_H_ |
+ |
+#import <Foundation/Foundation.h> |
+ |
+#include "base/macros.h" |
+#import "ios/shared/chrome/browser/tabs/web_state_list_observer.h" |
+ |
+// Protocol that correspond to WebStateListObserver API. Allows registering |
+// Objective-C objects to listen to WebStateList events. |
+@protocol WebStateListObserving<NSObject> |
+ |
+@optional |
+ |
+// Invoked after a new WebState has been added to the WebStateList at the |
+// specified index. |
+- (void)webStateList:(WebStateList*)webStateList |
+ didInsertWebState:(web::WebState*)webState |
+ atIndex:(int)index; |
+ |
+// Invoked after the WebState at the specified index is moved to another index. |
+- (void)webStateList:(WebStateList*)webStateList |
+ didMoveWebState:(web::WebState*)webState |
+ fromIndex:(int)fromIndex |
+ toIndex:(int)toIndex; |
+ |
+// Invoked after the WebState at the specified index is replaced by another |
+// WebState. |
+- (void)webStateList:(WebStateList*)webStateList |
+ didReplaceWebState:(web::WebState*)oldWebState |
+ withWebState:(web::WebState*)newWebState |
+ atIndex:(int)index; |
+ |
+// Invoked after the WebState at the specified index has been detached. The |
+// WebState is still valid but is no longer in the WebStateList. |
+- (void)webStateList:(WebStateList*)webStateList |
+ didDetachWebState:(web::WebState*)webState |
+ atIndex:(int)index; |
+ |
+@end |
+ |
+// Observer that bridges WebStateList events to an Objective-C observer that |
+// implements the WebStateListObserver protocol (the observer is owned). |
+class WebStateListObserverBridge : public WebStateListObserver { |
+ public: |
+ explicit WebStateListObserverBridge(id<WebStateListObserving> observer); |
+ ~WebStateListObserverBridge() override; |
+ |
+ private: |
+ // WebStateListObserver implementation. |
+ void WebStateInsertedAt(WebStateList* web_state_list, |
+ web::WebState* web_state, |
+ int index) override; |
+ void WebStateMoved(WebStateList* web_state_list, |
+ web::WebState* web_state, |
+ int from_index, |
+ int to_index) override; |
+ void WebStateReplacedAt(WebStateList* web_state_list, |
+ web::WebState* old_web_state, |
+ web::WebState* new_web_state, |
+ int index) override; |
+ void WebStateDetachedAt(WebStateList* web_state_list, |
+ web::WebState* web_state, |
+ int index) override; |
+ |
+ id<WebStateListObserving> observer_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(WebStateListObserverBridge); |
+}; |
+ |
+#endif // IOS_SHARED_CHROME_BROWSER_TABS_WEB_STATE_LIST_OBSERVER_BRIDGE_H_ |