chrome/browser/geolocation/geolocation_permission_context_android.h

   1 // Copyright 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_GEOLOCATION_PERMISSION_CONTEXT_ANDROID_H_
   6 #define CHROME_BROWSER_GEOLOCATION_GEOLOCATION_PERMISSION_CONTEXT_ANDROID_H_
   7
   8 // The flow for geolocation permissions on Android needs to take into account
   9 // the global geolocation settings so it differs from the desktop one. It
  10 // works as follows.
  11 // GeolocationPermissionContextAndroid::RequestPermission intercepts the flow
  12 // and proceeds to check the system location.
  13 // This will in fact check several possible settings
  14 //     - The global system geolocation setting
  15 //     - The Google location settings on pre KK devices
  16 //     - An old internal Chrome setting on pre-JB MR1 devices
  17 // With all that information it will decide if system location is enabled.
  18 // If enabled, it proceeds with the per site flow via
  19 // GeolocationPermissionContext (which will check per site permissions, create
  20 // infobars, etc.).
  21 //
  22 // Otherwise the permission is already decided.
  23 #include "base/memory/scoped_ptr.h"
  24 #include "base/memory/weak_ptr.h"
  25 #include "chrome/browser/geolocation/geolocation_permission_context.h"
  26
  27 namespace content {
  28 class WebContents;
  29 }
  30
  31 class LocationSettings;
  32 class GURL;
  33 class PermissionRequestID;
  34
  35 class GeolocationPermissionContextAndroid
  36     : public GeolocationPermissionContext {
  37  public:
  38   explicit GeolocationPermissionContextAndroid(Profile* profile);
  39   ~GeolocationPermissionContextAndroid() override;
  40
  41  private:
  42   friend class GeolocationPermissionContextTests;
  43
  44   // GeolocationPermissionContext:
  45   void RequestPermission(
  46       content::WebContents* web_contents,
  47       const PermissionRequestID& id,
  48       const GURL& requesting_frame_origin,
  49       bool user_gesture,
  50       const BrowserPermissionCallback& callback) override;
  51
  52   void HandleUpdateAndroidPermissions(const PermissionRequestID& id,
  53                                       const GURL& requesting_frame_origin,
  54                                       const GURL& embedding_origin,
  55                                       const BrowserPermissionCallback& callback,
  56                                       bool permissions_updated);
  57
  58   // Overrides the LocationSettings object used to determine whether
  59   // system and Chrome-wide location permissions are enabled.
  60   void SetLocationSettingsForTesting(scoped_ptr<LocationSettings> settings);
  61
  62   scoped_ptr<LocationSettings> location_settings_;
  63
  64   // Must be the last member, to ensure that it will be destroyed first, which
  65   // will invalidate weak pointers.
  66   base::WeakPtrFactory<GeolocationPermissionContextAndroid> weak_factory_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(GeolocationPermissionContextAndroid);
  69 };
  70
  71 #endif  // CHROME_BROWSER_GEOLOCATION_GEOLOCATION_PERMISSION_CONTEXT_ANDROID_H_