src/chrome/browser/search_engines/search_provider_install_state_message_filter.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_SEARCH_ENGINES_SEARCH_PROVIDER_INSTALL_STATE_MESSAGE_FILTER_H_
   6 #define CHROME_BROWSER_SEARCH_ENGINES_SEARCH_PROVIDER_INSTALL_STATE_MESSAGE_FILTER_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "chrome/browser/search_engines/search_provider_install_data.h"
  10 #include "chrome/common/search_provider.h"
  11 #include "content/public/browser/browser_message_filter.h"
  12
  13 class GURL;
  14 class Profile;
  15
  16 // Handles messages regarding search provider install state on the I/O thread.
  17 class SearchProviderInstallStateMessageFilter
  18     : public content::BrowserMessageFilter {
  19  public:
  20   // Unlike the other methods, the constructor must be called on the UI thread.
  21   SearchProviderInstallStateMessageFilter(int render_process_id,
  22                                           Profile* profile);
  23
  24   // content::BrowserMessageFilter implementation.
  25   bool OnMessageReceived(const IPC::Message& message) override;
  26
  27  private:
  28   ~SearchProviderInstallStateMessageFilter() override;
  29
  30   // Figures out the install state for the search provider.
  31    search_provider::InstallState GetSearchProviderInstallState(
  32       const GURL& page_location,
  33       const GURL& requested_host);
  34
  35   // Starts handling the message requesting the search provider install state.
  36   void OnGetSearchProviderInstallState(const GURL& page_location,
  37                                        const GURL& requested_host,
  38                                        IPC::Message* reply_msg);
  39
  40   // Sends the reply message about the search provider install state.
  41   void ReplyWithProviderInstallState(const GURL& page_location,
  42                                      const GURL& requested_host,
  43                                      IPC::Message* reply_msg);
  44
  45   // Used to do a load and get information about install states.
  46   SearchProviderInstallData provider_data_;
  47
  48   // Copied from the profile since the profile can't be accessed on the I/O
  49   // thread.
  50   const bool is_off_the_record_;
  51
  52   // Used to schedule invocations of ReplyWithProviderInstallState.
  53   base::WeakPtrFactory<SearchProviderInstallStateMessageFilter> weak_factory_;
  54
  55   DISALLOW_COPY_AND_ASSIGN(SearchProviderInstallStateMessageFilter);
  56 };
  57
  58 #endif  // CHROME_BROWSER_SEARCH_ENGINES_SEARCH_PROVIDER_INSTALL_STATE_MESSAGE_FILTER_H_