chrome/browser/media/media_stream_infobar_delegate.cc

   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 #include "chrome/browser/media/media_stream_infobar_delegate.h"
   6
   7 #include "base/logging.h"
   8 #include "base/metrics/histogram.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "chrome/browser/infobars/infobar_service.h"
  11 #include "chrome/common/url_constants.h"
  12 #include "chrome/grit/generated_resources.h"
  13 #include "components/google/core/browser/google_util.h"
  14 #include "components/infobars/core/infobar.h"
  15 #include "content/public/browser/web_contents.h"
  16 #include "content/public/common/origin_util.h"
  17 #include "grit/components_strings.h"
  18 #include "grit/theme_resources.h"
  19 #include "ui/base/l10n/l10n_util.h"
  20 #include "url/gurl.h"
  21
  22 namespace {
  23
  24 enum DevicePermissionActions {
  25   kAllowHttps = 0,
  26   kAllowHttp,
  27   kDeny,
  28   kCancel,
  29   kPermissionActionsMax  // Must always be last!
  30 };
  31
  32 }  // namespace
  33
  34 MediaStreamInfoBarDelegate::~MediaStreamInfoBarDelegate() {
  35 }
  36
  37 // static
  38 bool MediaStreamInfoBarDelegate::Create(
  39     content::WebContents* web_contents,
  40     const content::MediaStreamRequest& request,
  41     const content::MediaResponseCallback& callback) {
  42   scoped_ptr<MediaStreamDevicesController> controller(
  43       new MediaStreamDevicesController(web_contents, request, callback));
  44   if (!controller->IsAskingForAudio() && !controller->IsAskingForVideo())
  45     return false;
  46
  47   InfoBarService* infobar_service =
  48       InfoBarService::FromWebContents(web_contents);
  49   if (!infobar_service) {
  50     // Deny the request if there is no place to show the infobar, e.g. when
  51     // the request comes from a background extension page.
  52     controller->Cancelled();
  53     return false;
  54   }
  55
  56   scoped_ptr<infobars::InfoBar> infobar(
  57       infobar_service->CreateConfirmInfoBar(scoped_ptr<ConfirmInfoBarDelegate>(
  58           new MediaStreamInfoBarDelegate(controller.Pass()))));
  59   for (size_t i = 0; i < infobar_service->infobar_count(); ++i) {
  60     infobars::InfoBar* old_infobar = infobar_service->infobar_at(i);
  61     if (old_infobar->delegate()->AsMediaStreamInfoBarDelegate()) {
  62       infobar_service->ReplaceInfoBar(old_infobar, infobar.Pass());
  63       return true;
  64     }
  65   }
  66   infobar_service->AddInfoBar(infobar.Pass());
  67   return true;
  68 }
  69
  70 bool MediaStreamInfoBarDelegate::IsRequestingVideoAccess() const {
  71   return controller_->IsAskingForVideo();
  72 }
  73
  74 bool MediaStreamInfoBarDelegate::IsRequestingMicrophoneAccess() const {
  75   return controller_->IsAskingForAudio();
  76 }
  77
  78 MediaStreamInfoBarDelegate::MediaStreamInfoBarDelegate(
  79     scoped_ptr<MediaStreamDevicesController> controller)
  80     : ConfirmInfoBarDelegate(),
  81       controller_(controller.Pass()) {
  82   DCHECK(controller_.get());
  83   DCHECK(controller_->IsAskingForAudio() || controller_->IsAskingForVideo());
  84 }
  85
  86 infobars::InfoBarDelegate::Type
  87 MediaStreamInfoBarDelegate::GetInfoBarType() const {
  88   return PAGE_ACTION_TYPE;
  89 }
  90
  91 int MediaStreamInfoBarDelegate::GetIconID() const {
  92   return controller_->IsAskingForVideo() ? IDR_INFOBAR_MEDIA_STREAM_CAMERA
  93                                          : IDR_INFOBAR_MEDIA_STREAM_MIC;
  94 }
  95
  96 void MediaStreamInfoBarDelegate::InfoBarDismissed() {
  97   // Deny the request if the infobar was closed with the 'x' button, since
  98   // we don't want WebRTC to be waiting for an answer that will never come.
  99   UMA_HISTOGRAM_ENUMERATION("Media.DevicePermissionActions",
 100                             kCancel, kPermissionActionsMax);
 101   controller_->Cancelled();
 102 }
 103
 104 MediaStreamInfoBarDelegate*
 105     MediaStreamInfoBarDelegate::AsMediaStreamInfoBarDelegate() {
 106   return this;
 107 }
 108
 109 base::string16 MediaStreamInfoBarDelegate::GetMessageText() const {
 110   int message_id = IDS_MEDIA_CAPTURE_AUDIO_AND_VIDEO;
 111   if (!controller_->IsAskingForAudio())
 112     message_id = IDS_MEDIA_CAPTURE_VIDEO_ONLY;
 113   else if (!controller_->IsAskingForVideo())
 114     message_id = IDS_MEDIA_CAPTURE_AUDIO_ONLY;
 115   return l10n_util::GetStringFUTF16(
 116       message_id, base::UTF8ToUTF16(controller_->GetSecurityOriginSpec()));
 117 }
 118
 119 base::string16 MediaStreamInfoBarDelegate::GetButtonLabel(
 120     InfoBarButton button) const {
 121   return l10n_util::GetStringUTF16((button == BUTTON_OK) ?
 122       IDS_MEDIA_CAPTURE_ALLOW : IDS_MEDIA_CAPTURE_BLOCK);
 123 }
 124
 125 bool MediaStreamInfoBarDelegate::Accept() {
 126   GURL origin(controller_->GetSecurityOriginSpec());
 127   if (content::IsOriginSecure(origin)) {
 128     UMA_HISTOGRAM_ENUMERATION("Media.DevicePermissionActions",
 129                               kAllowHttps, kPermissionActionsMax);
 130   } else {
 131     UMA_HISTOGRAM_ENUMERATION("Media.DevicePermissionActions",
 132                               kAllowHttp, kPermissionActionsMax);
 133   }
 134   controller_->PermissionGranted();
 135   return true;
 136 }
 137
 138 bool MediaStreamInfoBarDelegate::Cancel() {
 139   UMA_HISTOGRAM_ENUMERATION("Media.DevicePermissionActions",
 140                             kDeny, kPermissionActionsMax);
 141   controller_->PermissionDenied();
 142   return true;
 143 }
 144
 145 base::string16 MediaStreamInfoBarDelegate::GetLinkText() const {
 146   return base::string16();
 147 }
 148
 149 bool MediaStreamInfoBarDelegate::LinkClicked(
 150     WindowOpenDisposition disposition) {
 151   InfoBarService::WebContentsFromInfoBar(infobar())->OpenURL(
 152       content::OpenURLParams(
 153           GURL(chrome::kMediaAccessLearnMoreUrl),
 154           content::Referrer(),
 155           (disposition == CURRENT_TAB) ? NEW_FOREGROUND_TAB : disposition,
 156           ui::PAGE_TRANSITION_LINK, false));
 157
 158   return false;  // Do not dismiss the info bar.
 159 }