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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/ozone/platform/wayland/host/wayland_data_device_manager.h"
#include <memory>
#include "base/logging.h"
#include "ui/ozone/platform/wayland/host/wayland_connection.h"
#include "ui/ozone/platform/wayland/host/wayland_data_device.h"
#include "ui/ozone/platform/wayland/host/wayland_data_source.h"
#include "ui/ozone/platform/wayland/host/wayland_seat.h"
namespace ui {
namespace {
constexpr uint32_t kMinVersion = 1;
constexpr uint32_t kMaxVersion = 3;
}
// static
constexpr char WaylandDataDeviceManager::kInterfaceName[];
// static
void WaylandDataDeviceManager::Instantiate(WaylandConnection* connection,
wl_registry* registry,
uint32_t name,
const std::string& interface,
uint32_t version) {
CHECK_EQ(interface, kInterfaceName) << "Expected \"" << kInterfaceName
<< "\" but got \"" << interface << "\"";
if (connection->data_device_manager_ ||
!wl::CanBind(interface, version, kMinVersion, kMaxVersion)) {
return;
}
auto data_device_manager = wl::Bind<wl_data_device_manager>(
registry, name, std::min(version, kMaxVersion));
if (!data_device_manager) {
LOG(ERROR) << "Failed to bind to wl_data_device_manager global";
return;
}
connection->data_device_manager_ = std::make_unique<WaylandDataDeviceManager>(
data_device_manager.release(), connection);
// The data device manager is one of objects needed for data exchange. Notify
// the connection so it might set up the rest if all other parts are in place.
connection->CreateDataObjectsIfReady();
}
WaylandDataDeviceManager::WaylandDataDeviceManager(
wl_data_device_manager* device_manager,
WaylandConnection* connection)
: device_manager_(device_manager), connection_(connection) {
DCHECK(connection_);
DCHECK(device_manager_);
}
WaylandDataDeviceManager::~WaylandDataDeviceManager() = default;
WaylandDataDevice* WaylandDataDeviceManager::GetDevice() {
DCHECK(connection_->seat());
if (!device_) {
device_ = std::make_unique<WaylandDataDevice>(
connection_,
wl_data_device_manager_get_data_device(
device_manager_.get(), connection_->seat()->wl_object()));
}
DCHECK(device_);
return device_.get();
}
std::unique_ptr<WaylandDataSource> WaylandDataDeviceManager::CreateSource(
WaylandDataSource::Delegate* delegate) {
wl_data_source* data_source =
wl_data_device_manager_create_data_source(device_manager_.get());
return std::make_unique<WaylandDataSource>(data_source, connection_,
delegate);
}
} // namespace ui
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