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// Copyright 2021 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/test/test_selection_device_manager.h"
#include <wayland-server-core.h>
#include <cstdint>
#include <utility>
#include <vector>
#include "base/check.h"
#include "base/files/file_util.h"
#include "base/files/scoped_file.h"
#include "base/functional/bind.h"
#include "base/logging.h"
#include "base/notreached.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "ui/ozone/platform/wayland/test/server_object.h"
namespace wl {
namespace {
std::vector<uint8_t> ReadDataOnWorkerThread(base::ScopedFD fd) {
constexpr size_t kChunkSize = 1024;
std::vector<uint8_t> bytes;
while (true) {
std::array<uint8_t, kChunkSize> chunk;
ssize_t bytes_read =
HANDLE_EINTR(read(fd.get(), chunk.data(), chunk.size()));
if (bytes_read > 0) {
bytes.insert(bytes.end(), chunk.begin(), chunk.begin() + bytes_read);
continue;
}
if (bytes_read < 0) {
PLOG(ERROR) << "Failed to read data";
bytes.clear();
}
break;
}
return bytes;
}
void WriteDataOnWorkerThread(base::ScopedFD fd,
ui::PlatformClipboard::Data data) {
if (!base::WriteFileDescriptor(fd.get(), data->as_vector())) {
LOG(ERROR) << "Failed to write selection data to clipboard.";
}
}
} // namespace
// TestSelectionOffer implementation.
TestSelectionOffer::TestSelectionOffer(wl_resource* resource,
std::unique_ptr<Delegate> delegate)
: ServerObject(resource),
delegate_(std::move(delegate)),
task_runner_(
base::ThreadPool::CreateSequencedTaskRunner({base::MayBlock()})) {}
TestSelectionOffer::~TestSelectionOffer() = default;
void TestSelectionOffer::OnOffer(const std::string& mime_type,
ui::PlatformClipboard::Data data) {
data_to_offer_[mime_type] = data;
delegate_->SendOffer(mime_type);
}
void TestSelectionOffer::Receive(wl_client* client,
wl_resource* resource,
const char* mime_type,
int fd) {
CHECK(GetUserDataAs<TestSelectionOffer>(resource));
auto* self = GetUserDataAs<TestSelectionOffer>(resource);
self->task_runner_->PostTask(
FROM_HERE, base::BindOnce(&WriteDataOnWorkerThread, base::ScopedFD(fd),
self->data_to_offer_[mime_type]));
}
// TestSelectionSource implementation.
TestSelectionSource::TestSelectionSource(wl_resource* resource,
std::unique_ptr<Delegate> delegate)
: ServerObject(resource),
delegate_(std::move(delegate)),
task_runner_(
base::ThreadPool::CreateSequencedTaskRunner({base::MayBlock()})) {}
TestSelectionSource::~TestSelectionSource() = default;
void TestSelectionSource::ReadData(const std::string& mime_type,
ReadDataCallback callback) {
base::ScopedFD read_fd;
base::ScopedFD write_fd;
PCHECK(base::CreatePipe(&read_fd, &write_fd));
// 1. Send the SEND event to notify client's DataSource that it's time
// to send us the drag data thrhough the write_fd file descriptor.
delegate_->SendSend(mime_type, std::move(write_fd));
// 2. Schedule the ReadDataOnWorkerThread task. The result of read
// operation will be then passed in to the callback requested by the caller.
task_runner_->PostTaskAndReplyWithResult(
FROM_HERE, base::BindOnce(&ReadDataOnWorkerThread, std::move(read_fd)),
std::move(callback));
}
void TestSelectionSource::OnFinished() {
delegate_->SendFinished();
mime_types_.clear();
}
void TestSelectionSource::OnCancelled() {
delegate_->SendCancelled();
mime_types_.clear();
}
void TestSelectionSource::OnDndAction(uint32_t action) {
delegate_->SendDndAction(action);
}
void TestSelectionSource::OnDndDropPerformed() {
delegate_->SendDndDropPerformed();
}
void TestSelectionSource::Offer(struct wl_client* client,
struct wl_resource* resource,
const char* mime_type) {
CHECK(GetUserDataAs<TestSelectionSource>(resource));
auto* self = GetUserDataAs<TestSelectionSource>(resource);
self->mime_types_.push_back(mime_type);
}
// TestSelectionDevice implementation.
TestSelectionDevice::TestSelectionDevice(wl_resource* resource,
std::unique_ptr<Delegate> delegate)
: ServerObject(resource), delegate_(std::move(delegate)) {}
TestSelectionDevice::~TestSelectionDevice() = default;
TestSelectionOffer* TestSelectionDevice::OnDataOffer() {
return delegate_->CreateAndSendOffer();
}
void TestSelectionDevice::OnSelection(TestSelectionOffer* offer) {
delegate_->SendSelection(offer);
}
void TestSelectionDevice::SetSelection(struct wl_client* client,
struct wl_resource* resource,
struct wl_resource* source,
uint32_t serial) {
CHECK(GetUserDataAs<TestSelectionDevice>(resource));
auto* self = GetUserDataAs<TestSelectionDevice>(resource);
auto* src = source ? GetUserDataAs<TestSelectionSource>(source) : nullptr;
self->selection_serial_ = serial;
self->delegate_->HandleSetSelection(src, serial);
if (self->manager_)
self->manager_->set_source(src);
}
TestSelectionDeviceManager::TestSelectionDeviceManager(
const InterfaceInfo& info,
std::unique_ptr<Delegate> delegate)
: GlobalObject(info.interface, info.implementation, info.version),
delegate_(std::move(delegate)) {}
TestSelectionDeviceManager::~TestSelectionDeviceManager() = default;
void TestSelectionDeviceManager::CreateSource(wl_client* client,
wl_resource* manager_resource,
uint32_t id) {
CHECK(GetUserDataAs<TestSelectionDeviceManager>(manager_resource));
auto* manager = GetUserDataAs<TestSelectionDeviceManager>(manager_resource);
manager->delegate_->CreateSource(client, id);
}
void TestSelectionDeviceManager::GetDevice(wl_client* client,
wl_resource* manager_resource,
uint32_t id,
wl_resource* seat_resource) {
CHECK(GetUserDataAs<TestSelectionDeviceManager>(manager_resource));
auto* manager = GetUserDataAs<TestSelectionDeviceManager>(manager_resource);
auto* new_device = manager->delegate_->CreateDevice(client, id);
new_device->set_manager(manager);
manager->device_ = new_device;
}
} // namespace wl
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