extensions/renderer/extension_helper.h

   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_RENDERER_EXTENSION_HELPER_H_
   6 #define EXTENSIONS_RENDERER_EXTENSION_HELPER_H_
   7
   8 #include <vector>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "content/public/common/console_message_level.h"
  12 #include "content/public/renderer/render_view_observer.h"
  13 #include "content/public/renderer/render_view_observer_tracker.h"
  14 #include "extensions/common/view_type.h"
  15
  16 class GURL;
  17 class SkBitmap;
  18
  19 namespace base {
  20 class ListValue;
  21 }
  22
  23 namespace extensions {
  24 class AutomationApiHelper;
  25 class Dispatcher;
  26 class URLPatternSet;
  27
  28 // RenderView-level plumbing for extension features.
  29 class ExtensionHelper
  30     : public content::RenderViewObserver,
  31       public content::RenderViewObserverTracker<ExtensionHelper> {
  32  public:
  33   // Returns a list of extension RenderViews that match the given filter
  34   // criteria. If |browser_window_id| is not extension_misc::kUnknownWindowId,
  35   // the list is restricted to views in that browser window.
  36   static std::vector<content::RenderView*> GetExtensionViews(
  37       const std::string& extension_id,
  38       int browser_window_id,
  39       ViewType view_type);
  40
  41   // Returns the given extension's background page, or NULL if none.
  42   static content::RenderView* GetBackgroundPage(
  43       const std::string& extension_id);
  44
  45   ExtensionHelper(content::RenderView* render_view, Dispatcher* dispatcher);
  46   ~ExtensionHelper() override;
  47
  48   int tab_id() const { return tab_id_; }
  49   int browser_window_id() const { return browser_window_id_; }
  50   ViewType view_type() const { return view_type_; }
  51   Dispatcher* dispatcher() const { return dispatcher_; }
  52
  53  private:
  54   // RenderViewObserver implementation.
  55   bool OnMessageReceived(const IPC::Message& message) override;
  56   void DidCreateDocumentElement(blink::WebLocalFrame* frame) override;
  57   void DidMatchCSS(
  58       blink::WebLocalFrame* frame,
  59       const blink::WebVector<blink::WebString>& newly_matching_selectors,
  60       const blink::WebVector<blink::WebString>& stopped_matching_selectors)
  61       override;
  62   void DraggableRegionsChanged(blink::WebFrame* frame) override;
  63
  64   void OnExtensionResponse(int request_id, bool success,
  65                            const base::ListValue& response,
  66                            const std::string& error);
  67   void OnExtensionMessageInvoke(const std::string& extension_id,
  68                                 const std::string& module_name,
  69                                 const std::string& function_name,
  70                                 const base::ListValue& args,
  71                                 bool user_gesture);
  72   void OnNotifyRendererViewType(ViewType view_type);
  73   void OnSetTabId(int tab_id);
  74   void OnUpdateBrowserWindowId(int window_id);
  75   void OnAddMessageToConsole(content::ConsoleMessageLevel level,
  76                              const std::string& message);
  77   void OnAppWindowClosed();
  78   void OnSetFrameName(const std::string& name);
  79
  80   Dispatcher* dispatcher_;
  81
  82   // Type of view attached with RenderView.
  83   ViewType view_type_;
  84
  85   // Id of the tab which the RenderView is attached to.
  86   int tab_id_;
  87
  88   // Id number of browser window which RenderView is attached to.
  89   int browser_window_id_;
  90
  91   DISALLOW_COPY_AND_ASSIGN(ExtensionHelper);
  92 };
  93
  94 }  // namespace extensions
  95
  96 #endif  // EXTENSIONS_RENDERER_EXTENSION_HELPER_H_