chrome/browser/geolocation/geolocation_permission_context_android.cc

   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 #include "chrome/browser/geolocation/geolocation_permission_context_android.h"
   6
   7 #include "base/prefs/pref_service.h"
   8 #include "chrome/browser/android/google_location_settings_helper.h"
   9 #include "chrome/browser/profiles/profile.h"
  10 #include "chrome/common/pref_names.h"
  11 #include "content/public/browser/browser_thread.h"
  12 #include "content/public/browser/web_contents.h"
  13
  14 GeolocationPermissionContextAndroid::
  15 PermissionRequestInfo::PermissionRequestInfo()
  16     : id(0, 0, 0, GURL()),
  17       user_gesture(false) {
  18 }
  19
  20 GeolocationPermissionContextAndroid::
  21     GeolocationPermissionContextAndroid(Profile* profile)
  22     : GeolocationPermissionContext(profile),
  23       google_location_settings_helper_(
  24           GoogleLocationSettingsHelper::Create()),
  25       weak_factory_(this) {
  26 }
  27
  28 GeolocationPermissionContextAndroid::~GeolocationPermissionContextAndroid() {
  29 }
  30
  31 void GeolocationPermissionContextAndroid::ProceedDecidePermission(
  32     content::WebContents* web_contents,
  33     const PermissionRequestInfo& info,
  34     base::Callback<void(bool)> callback) {
  35
  36   // The super class implementation expects everything in UI thread.
  37   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  38   GeolocationPermissionContext::RequestPermission(
  39       web_contents, info.id,
  40       info.requesting_origin,
  41       info.user_gesture,
  42       callback);
  43 }
  44
  45
  46 // UI thread
  47 void GeolocationPermissionContextAndroid::RequestPermission(
  48     content::WebContents* web_contents,
  49      const PermissionRequestID& id,
  50      const GURL& requesting_frame_origin,
  51      bool user_gesture,
  52      const BrowserPermissionCallback& callback) {
  53   PermissionRequestInfo info;
  54   info.id = id;
  55   info.requesting_origin = requesting_frame_origin;
  56   info.embedder_origin = web_contents->GetLastCommittedURL().GetOrigin();
  57   info.user_gesture = user_gesture;
  58
  59   // Called on the UI thread. However, do the work on a separate thread
  60   // to avoid strict mode violation.
  61   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  62   content::BrowserThread::PostBlockingPoolTask(FROM_HERE,
  63       base::Bind(
  64           &GeolocationPermissionContextAndroid::CheckMasterLocation,
  65           weak_factory_.GetWeakPtr(), web_contents, info, callback));
  66 }
  67
  68 // Blocking pool thread
  69 void GeolocationPermissionContextAndroid::CheckMasterLocation(
  70     content::WebContents* web_contents,
  71     const PermissionRequestInfo& info,
  72     const BrowserPermissionCallback& callback) {
  73   // Check to see if the feature in its entirety has been disabled.
  74   // This must happen before other services (e.g. tabs, extensions)
  75   // get an opportunity to allow the geolocation request.
  76   bool enabled =
  77       google_location_settings_helper_->IsSystemLocationEnabled();
  78
  79   base::Closure ui_closure;
  80   if (enabled) {
  81     ui_closure = base::Bind(
  82         &GeolocationPermissionContextAndroid::ProceedDecidePermission,
  83         base::Unretained(this), web_contents, info, callback);
  84   } else {
  85     ui_closure = base::Bind(
  86         &GeolocationPermissionContextAndroid::PermissionDecided,
  87         base::Unretained(this), info.id, info.requesting_origin,
  88         info.embedder_origin, callback, false, false);
  89   }
  90
  91   // This method is executed from the BlockingPool, post the result
  92   // back to the UI thread.
  93   content::BrowserThread::PostTask(
  94       content::BrowserThread::UI, FROM_HERE, ui_closure);
  95 }
  96
  97
  98 void GeolocationPermissionContextAndroid::InterceptPermissionCheck(
  99     const BrowserPermissionCallback& callback, bool granted) {
 100   callback.Run(granted);
 101 }