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// Copyright 2012 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/clipboard.h"
#include <memory>
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "remoting/host/linux/x_server_clipboard.h"
#include "remoting/proto/event.pb.h"
#include "remoting/protocol/clipboard_stub.h"
#include "ui/gfx/x/connection.h"
#include "ui/gfx/x/xproto_types.h"
namespace remoting {
// This code is expected to be called on the desktop thread only.
class ClipboardX11 : public Clipboard, public x11::EventObserver {
public:
ClipboardX11();
ClipboardX11(const ClipboardX11&) = delete;
ClipboardX11& operator=(const ClipboardX11&) = delete;
~ClipboardX11() override;
void Init();
// Clipboard interface.
void Start(
std::unique_ptr<protocol::ClipboardStub> client_clipboard) override;
void InjectClipboardEvent(const protocol::ClipboardEvent& event) override;
private:
void OnClipboardChanged(const std::string& mime_type,
const std::string& data);
// x11::EventObserver:
void OnEvent(const x11::Event& event) override;
std::unique_ptr<protocol::ClipboardStub> client_clipboard_;
// Underlying X11 clipboard implementation.
XServerClipboard x_server_clipboard_;
// Connection to the X server, used by |x_server_clipboard_|. This must only
// be accessed on the input thread.
raw_ptr<x11::Connection> connection_;
};
ClipboardX11::ClipboardX11() = default;
ClipboardX11::~ClipboardX11() {
if (connection_) {
connection_->RemoveEventObserver(this);
}
}
void ClipboardX11::Init() {
connection_ = x11::Connection::Get();
connection_->AddEventObserver(this);
x_server_clipboard_.Init(
connection_, base::BindRepeating(&ClipboardX11::OnClipboardChanged,
base::Unretained(this)));
}
void ClipboardX11::Start(
std::unique_ptr<protocol::ClipboardStub> client_clipboard) {
client_clipboard_.swap(client_clipboard);
}
void ClipboardX11::InjectClipboardEvent(const protocol::ClipboardEvent& event) {
x_server_clipboard_.SetClipboard(event.mime_type(), event.data());
}
void ClipboardX11::OnClipboardChanged(const std::string& mime_type,
const std::string& data) {
protocol::ClipboardEvent event;
event.set_mime_type(mime_type);
event.set_data(data);
if (client_clipboard_.get()) {
client_clipboard_->InjectClipboardEvent(event);
}
}
void ClipboardX11::OnEvent(const x11::Event& event) {
x_server_clipboard_.ProcessXEvent(event);
}
std::unique_ptr<Clipboard> Clipboard::Create() {
auto clipboard = std::make_unique<ClipboardX11>();
clipboard->Init();
return clipboard;
}
} // namespace remoting
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