win8/metro_driver/chrome_url_launch_handler.h

   1 // Copyright (c) 2012 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_UI_METRO_DRIVER_CHROME_URL_LAUNCH_HANDLER_H_
   6 #define CHROME_BROWSER_UI_METRO_DRIVER_CHROME_URL_LAUNCH_HANDLER_H_
   7
   8 #include <string>
   9 #include <windows.applicationmodel.core.h>
  10 #include <Windows.applicationModel.search.h>
  11 #include <windows.ui.core.h>
  12
  13 #include "winrt_utils.h"
  14
  15 // This class handles the various flavors of URL launches in metro, i.e.
  16 // via the search charm, via a url being navigated from a metro app, etc.
  17 class ChromeUrlLaunchHandler {
  18  public:
  19   ChromeUrlLaunchHandler();
  20   ~ChromeUrlLaunchHandler();
  21
  22   HRESULT Initialize();
  23
  24   // If metro chrome was launched due to a URL navigation/search request then
  25   // the navigation should be done when the frame window is initialized. This
  26   // function is called to complete the pending navigation when we receive a
  27   // notification from chrome that the frame window is initialized.
  28   void PerformPendingNavigation();
  29
  30   void Activate(winapp::Activation::IActivatedEventArgs* args);
  31
  32  private:
  33   // Invoked when we receive search notifications in metro chrome.
  34   template<class T> void HandleSearchRequest(T* args);
  35
  36   HRESULT OnQuerySubmitted(
  37       winapp::Search::ISearchPane* search_pane,
  38       winapp::Search::ISearchPaneQuerySubmittedEventArgs* args);
  39
  40   base::string16 GetUrlFromLaunchArgs(const base::string16& launch_args);
  41
  42   // Invoked when a url is navigated from a metro app or in the metro
  43   // shelf.
  44   void HandleProtocolLaunch(
  45       winapp::Activation::IProtocolActivatedEventArgs* args);
  46
  47   // Invoked when the app is launched normally
  48   void HandleLaunch(winapp::Activation::ILaunchActivatedEventArgs* args);
  49
  50   // Helper function to initiate a navigation or search request in chrome.
  51   void InitiateNavigationOrSearchRequest(const wchar_t* url,
  52                                          const wchar_t* search_string);
  53
  54   Microsoft::WRL::ComPtr<winapp::Search::ISearchPane> search_pane_;
  55   EventRegistrationToken query_submitted_token_;
  56 };
  57
  58 #endif  // CHROME_BROWSER_UI_METRO_DRIVER_CHROME_URL_LAUNCH_HANDLER_H_