chrome/browser/geolocation/chrome_geolocation_permission_context.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_GEOLOCATION_CHROME_GEOLOCATION_PERMISSION_CONTEXT_H_
   6 #define CHROME_BROWSER_GEOLOCATION_CHROME_GEOLOCATION_PERMISSION_CONTEXT_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "chrome/browser/content_settings/permission_queue_controller.h"
  12 #include "content/public/browser/geolocation_permission_context.h"
  13
  14 namespace content {
  15 class WebContents;
  16 }
  17
  18 class PermissionRequestID;
  19 class Profile;
  20
  21 // Chrome specific implementation of GeolocationPermissionContext; manages
  22 // Geolocation permissions flow, and delegates UI handling via
  23 // PermissionQueueController.
  24 class ChromeGeolocationPermissionContext
  25     : public content::GeolocationPermissionContext {
  26  public:
  27   explicit ChromeGeolocationPermissionContext(Profile* profile);
  28
  29   // GeolocationPermissionContext:
  30   virtual void RequestGeolocationPermission(
  31       int render_process_id,
  32       int render_view_id,
  33       int bridge_id,
  34       const GURL& requesting_frame,
  35       bool user_gesture,
  36       base::Callback<void(bool)> callback) OVERRIDE;
  37   virtual void CancelGeolocationPermissionRequest(
  38       int render_process_id,
  39       int render_view_id,
  40       int bridge_id,
  41       const GURL& requesting_frame) OVERRIDE;
  42
  43   // Called on the UI thread when the profile is about to be destroyed.
  44   void ShutdownOnUIThread();
  45
  46   // Notifies whether or not the corresponding bridge is allowed to use
  47   // geolocation via
  48   // GeolocationPermissionContext::SetGeolocationPermissionResponse().
  49   // Called on the UI thread.
  50   void NotifyPermissionSet(const PermissionRequestID& id,
  51                            const GURL& requesting_frame,
  52                            base::Callback<void(bool)> callback,
  53                            bool allowed);
  54
  55  protected:
  56   virtual ~ChromeGeolocationPermissionContext();
  57
  58   Profile* profile() const { return profile_; }
  59
  60   // Return an instance of the infobar queue controller, creating it
  61   // if necessary.
  62   PermissionQueueController* QueueController();
  63
  64   // ChromeGeolocationPermissionContext implementation:
  65   // Decide whether the geolocation permission should be granted.
  66   // Calls PermissionDecided if permission can be decided non-interactively,
  67   // or NotifyPermissionSet if permission decided by presenting an
  68   // infobar to the user. Called on the UI thread.
  69   virtual void DecidePermission(content::WebContents* web_contents,
  70                                 const PermissionRequestID& id,
  71                                 const GURL& requesting_frame,
  72                                 bool user_gesture,
  73                                 const GURL& embedder,
  74                                 const std::string& accept_button_label,
  75                                 base::Callback<void(bool)> callback);
  76
  77   // Called when permission is granted without interactively asking
  78   // the user. Can be overridden to introduce additional UI flow.
  79   // Should ultimately ensure that NotifyPermissionSet is called.
  80   // Called on the UI thread.
  81   virtual void PermissionDecided(const PermissionRequestID& id,
  82                                  const GURL& requesting_frame,
  83                                  const GURL& embedder,
  84                                  base::Callback<void(bool)> callback,
  85                                  bool allowed);
  86
  87   // Create an PermissionQueueController. overriden in derived classes to
  88   // provide additional UI flow.  Called on the UI thread.
  89   virtual PermissionQueueController* CreateQueueController();
  90
  91  private:
  92   // Removes any pending InfoBar request.
  93   void CancelPendingInfobarRequest(const PermissionRequestID& id);
  94
  95   // Creates and show an info bar.
  96   void CreateInfoBarRequest(const PermissionRequestID& id,
  97                             const GURL& requesting_frame,
  98                             const GURL& embedder,
  99                             const std::string accept_button_label,
 100                             base::Callback<void(bool)> callback);
 101
 102   // These must only be accessed from the UI thread.
 103   Profile* const profile_;
 104   bool shutting_down_;
 105   scoped_ptr<PermissionQueueController> permission_queue_controller_;
 106
 107   DISALLOW_COPY_AND_ASSIGN(ChromeGeolocationPermissionContext);
 108 };
 109
 110 #endif  // CHROME_BROWSER_GEOLOCATION_CHROME_GEOLOCATION_PERMISSION_CONTEXT_H_