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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 "remoting/host/mouse_cursor_monitor_proxy.h"
#include <memory>
#include <utility>
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/task/single_thread_task_runner.h"
#include "base/threading/thread_checker.h"
#include "build/build_config.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
#include "third_party/webrtc/modules/desktop_capture/mouse_cursor.h"
#include "third_party/webrtc/modules/desktop_capture/mouse_cursor_monitor.h"
#if BUILDFLAG(IS_CHROMEOS)
#include "remoting/host/chromeos/mouse_cursor_monitor_aura.h"
#endif
namespace remoting {
class MouseCursorMonitorProxy::Core
: public webrtc::MouseCursorMonitor::Callback {
public:
explicit Core(base::WeakPtr<MouseCursorMonitorProxy> proxy);
Core(const Core&) = delete;
Core& operator=(const Core&) = delete;
~Core() override;
void CreateMouseCursorMonitor(
base::OnceCallback<std::unique_ptr<webrtc::MouseCursorMonitor>()>
creator);
void Init(webrtc::MouseCursorMonitor::Mode mode);
void Capture();
private:
// webrtc::MouseCursorMonitor::Callback implementation.
void OnMouseCursor(webrtc::MouseCursor* mouse_cursor) override;
void OnMouseCursorPosition(const webrtc::DesktopVector& position) override;
base::ThreadChecker thread_checker_;
base::WeakPtr<MouseCursorMonitorProxy> proxy_;
scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner_;
std::unique_ptr<webrtc::MouseCursorMonitor> mouse_cursor_monitor_;
};
MouseCursorMonitorProxy::Core::Core(
base::WeakPtr<MouseCursorMonitorProxy> proxy)
: proxy_(proxy),
caller_task_runner_(base::SingleThreadTaskRunner::GetCurrentDefault()) {
thread_checker_.DetachFromThread();
}
MouseCursorMonitorProxy::Core::~Core() {
DCHECK(thread_checker_.CalledOnValidThread());
}
void MouseCursorMonitorProxy::Core::CreateMouseCursorMonitor(
base::OnceCallback<std::unique_ptr<webrtc::MouseCursorMonitor>()> creator) {
DCHECK(thread_checker_.CalledOnValidThread());
mouse_cursor_monitor_ = std::move(creator).Run();
if (!mouse_cursor_monitor_) {
LOG(ERROR) << "Failed to initialize MouseCursorMonitor.";
}
}
void MouseCursorMonitorProxy::Core::Init(
webrtc::MouseCursorMonitor::Mode mode) {
DCHECK(thread_checker_.CalledOnValidThread());
if (mouse_cursor_monitor_) {
mouse_cursor_monitor_->Init(this, mode);
}
}
void MouseCursorMonitorProxy::Core::Capture() {
DCHECK(thread_checker_.CalledOnValidThread());
if (mouse_cursor_monitor_) {
mouse_cursor_monitor_->Capture();
}
}
void MouseCursorMonitorProxy::Core::OnMouseCursor(webrtc::MouseCursor* cursor) {
DCHECK(thread_checker_.CalledOnValidThread());
std::unique_ptr<webrtc::MouseCursor> owned_cursor(cursor);
caller_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&MouseCursorMonitorProxy::OnMouseCursor, proxy_,
std::move(owned_cursor)));
}
void MouseCursorMonitorProxy::Core::OnMouseCursorPosition(
const webrtc::DesktopVector& position) {
DCHECK(thread_checker_.CalledOnValidThread());
caller_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&MouseCursorMonitorProxy::OnMouseCursorPosition,
proxy_, position));
}
MouseCursorMonitorProxy::MouseCursorMonitorProxy(
scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner,
base::OnceCallback<std::unique_ptr<webrtc::MouseCursorMonitor>()> creator)
: capture_task_runner_(capture_task_runner) {
core_ = std::make_unique<Core>(weak_factory_.GetWeakPtr());
capture_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&Core::CreateMouseCursorMonitor,
base::Unretained(core_.get()), std::move(creator)));
}
MouseCursorMonitorProxy::~MouseCursorMonitorProxy() {
capture_task_runner_->DeleteSoon(FROM_HERE, core_.release());
}
void MouseCursorMonitorProxy::Init(Callback* callback, Mode mode) {
DCHECK(thread_checker_.CalledOnValidThread());
callback_ = callback;
capture_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(&Core::Init, base::Unretained(core_.get()), mode));
}
void MouseCursorMonitorProxy::Capture() {
DCHECK(thread_checker_.CalledOnValidThread());
capture_task_runner_->PostTask(
FROM_HERE, base::BindOnce(&Core::Capture, base::Unretained(core_.get())));
}
void MouseCursorMonitorProxy::OnMouseCursor(
std::unique_ptr<webrtc::MouseCursor> cursor) {
DCHECK(thread_checker_.CalledOnValidThread());
callback_->OnMouseCursor(cursor.release());
}
void MouseCursorMonitorProxy::OnMouseCursorPosition(
const webrtc::DesktopVector& position) {
DCHECK(thread_checker_.CalledOnValidThread());
callback_->OnMouseCursorPosition(position);
}
} // namespace remoting
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