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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/image_capture/image_capture_impl.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/task/bind_post_task.h"
#include "base/trace_event/trace_event.h"
#include "base/unguessable_token.h"
#include "content/browser/browser_main_loop.h"
#include "content/browser/media/media_devices_permission_checker.h"
#include "content/browser/renderer_host/media/media_stream_manager.h"
#include "content/browser/renderer_host/media/video_capture_manager.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/content_features.h"
#include "media/capture/mojom/image_capture_types.h"
#include "media/capture/video/video_capture_device.h"
#include "mojo/public/cpp/bindings/callback_helpers.h"
#include "third_party/blink/public/common/mediastream/media_stream_request.h"
namespace content {
namespace {
void GetPhotoStateOnIOThread(const std::string& source_id,
MediaStreamManager* media_stream_manager,
ImageCaptureImpl::GetPhotoStateCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
const base::UnguessableToken session_id =
media_stream_manager->VideoDeviceIdToSessionId(source_id);
if (session_id.is_empty())
return;
media_stream_manager->video_capture_manager()->GetPhotoState(
session_id, std::move(callback));
}
void SetPhotoOptionsOnIOThread(
const std::string& source_id,
MediaStreamManager* media_stream_manager,
media::mojom::PhotoSettingsPtr settings,
ImageCaptureImpl::SetPhotoOptionsCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
const base::UnguessableToken session_id =
media_stream_manager->VideoDeviceIdToSessionId(source_id);
if (session_id.is_empty())
return;
media_stream_manager->video_capture_manager()->SetPhotoOptions(
session_id, std::move(settings), std::move(callback));
}
void TakePhotoOnIOThread(const std::string& source_id,
MediaStreamManager* media_stream_manager,
ImageCaptureImpl::TakePhotoCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
TRACE_EVENT_INSTANT0(TRACE_DISABLED_BY_DEFAULT("video_and_image_capture"),
"image_capture_impl.cc::TakePhotoOnIOThread",
TRACE_EVENT_SCOPE_PROCESS);
const base::UnguessableToken session_id =
media_stream_manager->VideoDeviceIdToSessionId(source_id);
if (session_id.is_empty())
return;
media_stream_manager->video_capture_manager()->TakePhoto(session_id,
std::move(callback));
}
} // anonymous namespace
// static
void ImageCaptureImpl::Create(
RenderFrameHost* render_frame_host,
mojo::PendingReceiver<media::mojom::ImageCapture> receiver) {
CHECK(render_frame_host);
// ImageCaptureImpl owns itself. It will self-destruct when a Mojo interface
// error occurs, the RenderFrameHost is deleted, or the RenderFrameHost
// navigates to a new document.
new ImageCaptureImpl(*render_frame_host, std::move(receiver));
}
void ImageCaptureImpl::GetPhotoState(const std::string& source_id,
GetPhotoStateCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
TRACE_EVENT_INSTANT0(TRACE_DISABLED_BY_DEFAULT("video_and_image_capture"),
"ImageCaptureImpl::GetPhotoState",
TRACE_EVENT_SCOPE_PROCESS);
GetPhotoStateCallback scoped_callback =
mojo::WrapCallbackWithDefaultInvokeIfNotRun(
base::BindPostTaskToCurrentDefault(
base::BindOnce(&ImageCaptureImpl::OnGetPhotoState,
weak_factory_.GetWeakPtr(), std::move(callback))),
mojo::CreateEmptyPhotoState());
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&GetPhotoStateOnIOThread, source_id,
BrowserMainLoop::GetInstance()->media_stream_manager(),
std::move(scoped_callback)));
}
void ImageCaptureImpl::SetPhotoOptions(const std::string& source_id,
media::mojom::PhotoSettingsPtr settings,
SetPhotoOptionsCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
TRACE_EVENT_INSTANT0(TRACE_DISABLED_BY_DEFAULT("video_and_image_capture"),
"ImageCaptureImpl::SetPhotoOptions",
TRACE_EVENT_SCOPE_PROCESS);
if ((settings->has_pan || settings->has_tilt || settings->has_zoom) &&
!HasPanTiltZoomPermissionGranted()) {
std::move(callback).Run(false);
return;
}
SetPhotoOptionsCallback scoped_callback =
mojo::WrapCallbackWithDefaultInvokeIfNotRun(
base::BindPostTaskToCurrentDefault(std::move(callback)), false);
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&SetPhotoOptionsOnIOThread, source_id,
BrowserMainLoop::GetInstance()->media_stream_manager(),
std::move(settings), std::move(scoped_callback)));
}
void ImageCaptureImpl::TakePhoto(const std::string& source_id,
TakePhotoCallback callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
TRACE_EVENT_INSTANT0(TRACE_DISABLED_BY_DEFAULT("video_and_image_capture"),
"ImageCaptureImpl::TakePhoto",
TRACE_EVENT_SCOPE_PROCESS);
TakePhotoCallback scoped_callback =
mojo::WrapCallbackWithDefaultInvokeIfNotRun(
base::BindPostTaskToCurrentDefault(std::move(callback)),
media::mojom::Blob::New());
GetIOThreadTaskRunner({})->PostTask(
FROM_HERE,
base::BindOnce(&TakePhotoOnIOThread, source_id,
BrowserMainLoop::GetInstance()->media_stream_manager(),
std::move(scoped_callback)));
}
ImageCaptureImpl::ImageCaptureImpl(
RenderFrameHost& render_frame_host,
mojo::PendingReceiver<media::mojom::ImageCapture> receiver)
: DocumentService(render_frame_host, std::move(receiver)) {}
ImageCaptureImpl::~ImageCaptureImpl() = default;
void ImageCaptureImpl::OnGetPhotoState(GetPhotoStateCallback callback,
media::mojom::PhotoStatePtr state) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (!HasPanTiltZoomPermissionGranted()) {
state->pan = media::mojom::Range::New();
state->tilt = media::mojom::Range::New();
state->zoom = media::mojom::Range::New();
}
std::move(callback).Run(std::move(state));
}
bool ImageCaptureImpl::HasPanTiltZoomPermissionGranted() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
return MediaDevicesPermissionChecker::
HasPanTiltZoomPermissionGrantedOnUIThread(
render_frame_host().GetProcess()->GetDeprecatedID(),
render_frame_host().GetRoutingID());
}
} // namespace content
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