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_TAB_CONTENTS_TAB_CONTENTS_CONTROLLER_H_ 6 #define CHROME_BROWSER_UI_COCOA_TAB_CONTENTS_TAB_CONTENTS_CONTROLLER_H_ 7 8 #include <Cocoa/Cocoa.h> 9 10 #include "base/memory/scoped_ptr.h" 11 12 class FullscreenObserver; 13 14 namespace content { 15 class WebContents; 16 } 17 18 // A class that controls the WebContents view. It manages displaying the 19 // native view for a given WebContents. 20 // Note that just creating the class does not display the view. We defer 21 // inserting it until the box is the correct size to avoid multiple resize 22 // messages to the renderer. You must call |-ensureContentsVisible| to display 23 // the render widget host view. 24 25 @interface TabContentsController : NSViewController { 26 @private 27 content::WebContents* contents_; // weak 28 // When |fullscreenObserver_| not-NULL, TabContentsController monitors for 29 // and auto-embeds fullscreen widgets as a subview. 30 scoped_ptr<FullscreenObserver> fullscreenObserver_; 31 // Set to true while TabContentsController is embedding a fullscreen widget 32 // view as a subview instead of the normal WebContentsView render view. 33 BOOL isEmbeddingFullscreenWidget_; 34 } 35 @property(readonly, nonatomic) content::WebContents* webContents; 36 37 // Create the contents of a tab represented by |contents|. When 38 // |enableEmbeddedFullscreen| is true, the WebContents view will automatically 39 // be swapped with a fullscreen render widget owned by the current WebContents. 40 - (id)initWithContents:(content::WebContents*)contents 41 andAutoEmbedFullscreen:(BOOL)enableEmbeddedFullscreen; 42 43 // Call when the tab contents is about to be replaced with the currently 44 // selected tab contents to do not trigger unnecessary content relayout. 45 - (void)ensureContentsSizeDoesNotChange; 46 47 // Call when the tab view is properly sized and the render widget host view 48 // should be put into the view hierarchy. 49 - (void)ensureContentsVisible; 50 51 // Call to change the underlying web contents object. View is not changed, 52 // call |-ensureContentsVisible| to display the |newContents|'s render widget 53 // host view. 54 - (void)changeWebContents:(content::WebContents*)newContents; 55 56 // Called when the tab contents is the currently selected tab and is about to be 57 // removed from the view hierarchy. 58 - (void)willBecomeUnselectedTab; 59 60 // Called when the tab contents is about to be put into the view hierarchy as 61 // the selected tab. Handles things such as ensuring the toolbar is correctly 62 // enabled. 63 - (void)willBecomeSelectedTab; 64 65 // Called when the tab contents is updated in some non-descript way (the 66 // notification from the model isn't specific). |updatedContents| could reflect 67 // an entirely new tab contents object. 68 - (void)tabDidChange:(content::WebContents*)updatedContents; 69 70 // Called to switch the container's subview to the WebContents-owned fullscreen 71 // widget or back to WebContentsView's widget. 72 - (void)toggleFullscreenWidget:(BOOL)enterFullscreen; 73 74 @end 75 76 #endif // CHROME_BROWSER_UI_COCOA_TAB_CONTENTS_TAB_CONTENTS_CONTROLLER_H_ 77
