electron/atom/browser/web_contents_permission_helper.cc
2016-01-29 15:23:28 +05:30

121 lines
3.8 KiB
C++

// Copyright (c) 2016 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/web_contents_permission_helper.h"
#include <string>
#include "atom/browser/api/atom_api_web_contents.h"
#include "content/public/browser/media_capture_devices.h"
DEFINE_WEB_CONTENTS_USER_DATA_KEY(atom::WebContentsPermissionHelper);
namespace atom {
namespace {
const content::MediaStreamDevice* FindDeviceWithId(
const content::MediaStreamDevices& devices,
const std::string& device_id) {
if (device_id.empty())
return &(*devices.begin());
for (const auto& iter : devices)
if (iter.id == device_id)
return &(iter);
return nullptr;
}
void MediaAccessAllowed(
const content::MediaStreamRequest& request,
const content::MediaResponseCallback& callback,
bool allowed) {
if (!allowed) {
callback.Run(content::MediaStreamDevices(),
content::MEDIA_DEVICE_PERMISSION_DENIED,
scoped_ptr<content::MediaStreamUI>());
return;
}
content::MediaStreamDevices devices;
content::MediaStreamRequestResult result = content::MEDIA_DEVICE_NO_HARDWARE;
if (request.audio_type == content::MEDIA_DEVICE_AUDIO_CAPTURE) {
const content::MediaStreamDevices& audio_devices =
content::MediaCaptureDevices::GetInstance()->GetAudioCaptureDevices();
const content::MediaStreamDevice* audio_device =
FindDeviceWithId(audio_devices, request.requested_audio_device_id);
if (audio_device)
devices.push_back(*audio_device);
}
if (request.video_type == content::MEDIA_DEVICE_VIDEO_CAPTURE) {
const content::MediaStreamDevices& video_devices =
content::MediaCaptureDevices::GetInstance()->GetVideoCaptureDevices();
const content::MediaStreamDevice* video_device =
FindDeviceWithId(video_devices, request.requested_video_device_id);
if (video_device)
devices.push_back(*video_device);
}
if (!devices.empty())
result = content::MEDIA_DEVICE_OK;
callback.Run(devices, result, scoped_ptr<content::MediaStreamUI>());
}
} // namespace
WebContentsPermissionHelper::WebContentsPermissionHelper(
content::WebContents* web_contents,
api::WebContents* api_web_contents)
: api_web_contents_(api_web_contents) {
web_contents->SetUserData(UserDataKey(), this);
}
WebContentsPermissionHelper::~WebContentsPermissionHelper() {
}
void WebContentsPermissionHelper::RequestMediaAccessPermission(
const content::MediaStreamRequest& request,
const content::MediaResponseCallback& callback) {
if (api_web_contents_->IsGuest()) {
const std::string& permission = "media";
permission_map_[permission] = base::Bind(&MediaAccessAllowed,
request,
callback);
api_web_contents_->Emit(
"permission-request",
permission,
base::Bind(&WebContentsPermissionHelper::OnPermissionResponse,
base::Unretained(this), permission));
return;
}
MediaAccessAllowed(request, callback, true);
}
void WebContentsPermissionHelper::RequestWebNotificationPermission(
const base::Callback<void(bool)>& callback) {
if (api_web_contents_->IsGuest()) {
const std::string& permission = "webNotification";
permission_map_[permission] = callback;
api_web_contents_->Emit(
"permission-request",
permission,
base::Bind(&WebContentsPermissionHelper::OnPermissionResponse,
base::Unretained(this), permission));
return;
}
callback.Run(true);
}
void WebContentsPermissionHelper::OnPermissionResponse(
const std::string& permission, bool allowed) {
auto it = permission_map_.find(permission);
if (it != permission_map_.end()) {
it->second.Run(allowed);
permission_map_.erase(permission);
}
}
} // namespace atom