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 CONTENT_PUBLIC_BROWSER_WEB_UI_CONTROLLER_H_ 6 #define CONTENT_PUBLIC_BROWSER_WEB_UI_CONTROLLER_H_ 7 8 #include "base/basictypes.h" 9 #include "base/strings/string16.h" 10 #include "content/common/content_export.h" 11 12 class GURL; 13 14 namespace base { 15 class ListValue; 16 } 17 18 namespace content { 19 20 class RenderViewHost; 21 class WebUI; 22 23 // A WebUI page is controller by the embedder's WebUIController object. It 24 // manages the data source and message handlers. 25 class CONTENT_EXPORT WebUIController { 26 public: WebUIController(WebUI * web_ui)27 explicit WebUIController(WebUI* web_ui) : web_ui_(web_ui) {} ~WebUIController()28 virtual ~WebUIController() {} 29 30 // Allows the controller to override handling all messages from the page. 31 // Return true if the message handling was overridden. 32 virtual bool OverrideHandleWebUIMessage(const GURL& source_url, 33 const std::string& message, 34 const base::ListValue& args); 35 36 // Called when RenderView is first created. This is *not* called for every 37 // page load because in some cases a RenderView will be reused. In those 38 // cases, RenderViewReused will be called instead. RenderViewCreated(RenderViewHost * render_view_host)39 virtual void RenderViewCreated(RenderViewHost* render_view_host) {} 40 41 // Called when a RenderView is reused to display a page. RenderViewReused(RenderViewHost * render_view_host)42 virtual void RenderViewReused(RenderViewHost* render_view_host) {} 43 web_ui()44 WebUI* web_ui() const { return web_ui_; } 45 46 private: 47 WebUI* web_ui_; 48 }; 49 50 } // namespace content 51 52 #endif // CONTENT_PUBLIC_BROWSER_WEB_UI_CONTROLLER_H_ 53