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 "components/error_page/renderer/net_error_helper_core.h"
  10 #include "content/public/renderer/render_frame_observer.h"
  11 #include "gin/arguments.h"
  12 #include "gin/wrappable.h"
  13
  14
  15 namespace content {
  16 class RenderFrame;
  17 }
  18
  19 // This class makes various helper functions available to the
  20 // error page loaded by NetErrorHelper.  It is bound to the JavaScript
  21 // window.errorPageController object.
  22 class NetErrorPageController
  23     : public gin::Wrappable<NetErrorPageController>,
  24       public content::RenderFrameObserver {
  25  public:
  26   static gin::WrapperInfo kWrapperInfo;
  27
  28   static void Install(content::RenderFrame* render_frame);
  29
  30  private:
  31   explicit NetErrorPageController(content::RenderFrame* render_frame);
  32   ~NetErrorPageController() override;
  33
  34   // Execute a "Show saved copy" button click.
  35   bool ShowSavedCopyButtonClick();
  36
  37   // Execute a "Reload" button click.
  38   bool ReloadButtonClick();
  39
  40   // Execute a "Details" button click.
  41   bool DetailsButtonClick();
  42
  43   // Track easter egg plays.
  44   bool TrackEasterEgg();
  45
  46   // Track a click when the page has suggestions from the navigation correction
  47   // service.
  48   bool TrackClick(const gin::Arguments& args);
  49
  50   // Used internally by other button click methods.
  51   bool ButtonClick(error_page::NetErrorHelperCore::Button button);
  52
  53   // gin::WrappableBase
  54   gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
  55       v8::Isolate* isolate) override;
  56
  57   // RenderFrameObserver.  Overridden to avoid being destroyed when RenderFrame
  58   // goes away; NetErrorPageController objects are owned by the JS
  59   // garbage collector.
  60   void OnDestruct() override;
  61
  62   DISALLOW_COPY_AND_ASSIGN(NetErrorPageController);
  63 };
  64
  65 #endif  // CHROME_RENDERER_NET_NET_ERROR_PAGE_CONTROLLER_H_