chrome/renderer/net/net_error_page_controller.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 CHROME_RENDERER_NET_NET_ERROR_PAGE_CONTROLLER_H_
   6 #define CHROME_RENDERER_NET_NET_ERROR_PAGE_CONTROLLER_H_
   7
   8 #include "base/macros.h"
   9 #include "content/public/renderer/render_frame_observer.h"
  10 #include "gin/arguments.h"
  11 #include "gin/wrappable.h"
  12
  13
  14 namespace content {
  15 class RenderFrame;
  16 }
  17
  18 // This class makes various helper functions available to the
  19 // error page loaded by NetErrorHelper.  It is bound to the JavaScript
  20 // window.errorPageController object.
  21 class NetErrorPageController
  22     : public gin::Wrappable<NetErrorPageController>,
  23       public content::RenderFrameObserver {
  24  public:
  25   static gin::WrapperInfo kWrapperInfo;
  26
  27   static void Install(content::RenderFrame* render_frame);
  28
  29  private:
  30   explicit NetErrorPageController(content::RenderFrame* render_frame);
  31   virtual ~NetErrorPageController();
  32
  33   // Execute a "Load Stale" button click.
  34   bool LoadStaleButtonClick();
  35
  36   // Execute a "Reload" button click.
  37   bool ReloadButtonClick();
  38
  39   // Execute a "More" button click.
  40   bool MoreButtonClick();
  41
  42   // Track a click when the page has suggestions from the navigation correction
  43   // service.
  44   bool TrackClick(const gin::Arguments& args);
  45
  46   // gin::WrappableBase
  47   virtual gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
  48       v8::Isolate* isolate) OVERRIDE;
  49
  50   // RenderFrameObserver.  Overridden to avoid being destroyed when RenderFrame
  51   // goes away; NetErrorPageController objects are owned by the JS
  52   // garbage collector.
  53   virtual void OnDestruct() OVERRIDE;
  54
  55   DISALLOW_COPY_AND_ASSIGN(NetErrorPageController);
  56 };
  57
  58 #endif  // CHROME_RENDERER_NET_NET_ERROR_PAGE_CONTROLLER_H_