1 // Copyright 2014 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 EXTENSIONS_BROWSER_EXTENSION_HOST_DELEGATE_H_ 6 #define EXTENSIONS_BROWSER_EXTENSION_HOST_DELEGATE_H_ 7 8 #include <string> 9 10 #include "content/public/common/media_stream_request.h" 11 #include "ui/base/window_open_disposition.h" 12 13 namespace content { 14 class JavaScriptDialogManager; 15 class WebContents; 16 } 17 18 namespace gfx { 19 class Rect; 20 } 21 22 namespace extensions { 23 class Extension; 24 class ExtensionHost; 25 26 // A delegate to support functionality that cannot exist in the extensions 27 // module. This is not an inner class of ExtensionHost to allow it to be forward 28 // declared. 29 class ExtensionHostDelegate { 30 public: ~ExtensionHostDelegate()31 virtual ~ExtensionHostDelegate() {} 32 33 // Called after the hosting |web_contents| for an extension is created. The 34 // implementation may wish to add preference observers to |web_contents|. 35 virtual void OnExtensionHostCreated(content::WebContents* web_contents) = 0; 36 37 // Called after |host| creates a RenderView for an extension. 38 virtual void OnRenderViewCreatedForBackgroundPage(ExtensionHost* host) = 0; 39 40 // Returns the embedder's JavaScriptDialogManager or NULL if the embedder 41 // does not support JavaScript dialogs. 42 virtual content::JavaScriptDialogManager* GetJavaScriptDialogManager() = 0; 43 44 // Creates a new tab or popup window with |web_contents|. The embedder may 45 // choose to do nothing if tabs and popups are not supported. 46 virtual void CreateTab(content::WebContents* web_contents, 47 const std::string& extension_id, 48 WindowOpenDisposition disposition, 49 const gfx::Rect& initial_pos, 50 bool user_gesture) = 0; 51 52 // Requests access to an audio or video media stream. Invokes |callback| 53 // with the response. 54 virtual void ProcessMediaAccessRequest( 55 content::WebContents* web_contents, 56 const content::MediaStreamRequest& request, 57 const content::MediaResponseCallback& callback, 58 const Extension* extension) = 0; 59 }; 60 61 } // namespace extensions 62 63 #endif // EXTENSIONS_BROWSER_EXTENSION_HOST_DELEGATE_H_ 64