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 "content/public/common/console_message_level.h"
  11 #include "content/public/renderer/render_view_observer.h"
  12 #include "content/public/renderer/render_view_observer_tracker.h"
  13
  14 namespace base {
  15 class ListValue;
  16 }
  17
  18 namespace extensions {
  19 class Dispatcher;
  20
  21 // RenderView-level plumbing for extension features.
  22 class ExtensionHelper
  23     : public content::RenderViewObserver,
  24       public content::RenderViewObserverTracker<ExtensionHelper> {
  25  public:
  26   ExtensionHelper(content::RenderView* render_view, Dispatcher* dispatcher);
  27   ~ExtensionHelper() override;
  28
  29   int browser_window_id() const { return browser_window_id_; }
  30   Dispatcher* dispatcher() const { return dispatcher_; }
  31
  32  private:
  33   // RenderViewObserver implementation.
  34   bool OnMessageReceived(const IPC::Message& message) override;
  35   void DidCreateDocumentElement(blink::WebLocalFrame* frame) override;
  36   void DidMatchCSS(
  37       blink::WebLocalFrame* frame,
  38       const blink::WebVector<blink::WebString>& newly_matching_selectors,
  39       const blink::WebVector<blink::WebString>& stopped_matching_selectors)
  40       override;
  41   void DraggableRegionsChanged(blink::WebFrame* frame) override;
  42
  43   void OnAppWindowClosed();
  44   void OnSetFrameName(const std::string& name);
  45
  46   Dispatcher* dispatcher_;
  47
  48   // Id number of browser window which RenderView is attached to.
  49   int browser_window_id_;
  50
  51   DISALLOW_COPY_AND_ASSIGN(ExtensionHelper);
  52 };
  53
  54 }  // namespace extensions
  55
  56 #endif  // EXTENSIONS_RENDERER_EXTENSION_HELPER_H_