chrome/browser/android/webapps/single_tab_mode_tab_helper.h

   1 // Copyright 2013 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_BROWSER_ANDROID_WEBAPPS_SINGLE_TAB_MODE_TAB_HELPER_H_
   6 #define CHROME_BROWSER_ANDROID_WEBAPPS_SINGLE_TAB_MODE_TAB_HELPER_H_
   7
   8 #include <set>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "chrome/browser/ui/blocked_content/blocked_window_params.h"
  13 #include "content/public/browser/web_contents_observer.h"
  14 #include "content/public/browser/web_contents_user_data.h"
  15
  16 namespace content {
  17 class RenderViewHost;
  18 class WebContents;
  19 }  // namespace content
  20
  21 class GURL;
  22
  23 // Registers and unregisters the IDs of renderers in single tab mode, which
  24 // are disallowed from opening new windows via
  25 // ChromeContentBrowserClient::CanCreateWindow().
  26 class SingleTabModeTabHelper
  27     : public content::WebContentsObserver,
  28       public content::WebContentsUserData<SingleTabModeTabHelper> {
  29  public:
  30   // Checks if the ID pair is blocked from creating new windows. IO-thread only.
  31   static bool IsRegistered(int32 process_id, int32 routing_id);
  32
  33   virtual ~SingleTabModeTabHelper();
  34
  35   // Handles opening the given URL through the TabModel.
  36   void HandleOpenUrl(const BlockedWindowParams& params);
  37
  38   // Permanently block this WebContents from creating new windows -- there is no
  39   // current need to allow toggling this flag on or off.
  40   void PermanentlyBlockAllNewWindows();
  41
  42   // content::WebContentsObserver
  43   virtual void RenderViewCreated(content::RenderViewHost* render_view_host)
  44       override;
  45   virtual void RenderViewDeleted(content::RenderViewHost* render_view_host)
  46       override;
  47
  48  private:
  49   explicit SingleTabModeTabHelper(content::WebContents* web_contents);
  50   friend class content::WebContentsUserData<SingleTabModeTabHelper>;
  51
  52   bool block_all_new_windows_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(SingleTabModeTabHelper);
  55 };
  56
  57 #endif  // CHROME_BROWSER_ANDROID_WEBAPPS_SINGLE_TAB_MODE_TAB_HELPER_H_