kwin/src/wayland/datasource_interface.cpp
David Edmundson 149b836d43 Introduce AbstractDataSource round the DataSourceInterface
Summary:
Clipboard managers and middle click paste are new protocols.

We want to be able to copy from a clipboard manager to a regular
clipboard and vice versa without duplicating loads of code.

If we support kliper's "syncronise contents of the clipboard and
selection" inside the compositor that would become an unmanageable amount
of combinations.

It also potentially allows the idea of our XWayland bridge not being a
wayland client and simplifying that code.

Test Plan: Unit test passes

Reviewers: #kwin

Subscribers: zzag

Differential Revision: https://phabricator.kde.org/D29329
2020-05-26 12:49:01 +01:00

189 lines
5.9 KiB
C++

/*
SPDX-FileCopyrightText: 2014 Martin Gräßlin <mgraesslin@kde.org>
SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
*/
#include "datasource_interface.h"
#include "datadevicemanager_interface.h"
#include "clientconnection.h"
#include "resource_p.h"
// Qt
#include <QStringList>
// Wayland
#include <wayland-server.h>
// system
#include <unistd.h>
namespace KWaylandServer
{
class DataSourceInterface::Private : public Resource::Private
{
public:
Private(DataSourceInterface *q, DataDeviceManagerInterface *parent, wl_resource *parentResource);
~Private();
QStringList mimeTypes;
DataDeviceManagerInterface::DnDActions supportedDnDActions = DataDeviceManagerInterface::DnDAction::None;
private:
DataSourceInterface *q_func() {
return reinterpret_cast<DataSourceInterface *>(q);
}
void offer(const QString &mimeType);
static void offerCallback(wl_client *client, wl_resource *resource, const char *mimeType);
static void setActionsCallback(wl_client *client, wl_resource *resource, uint32_t dnd_actions);
const static struct wl_data_source_interface s_interface;
};
#ifndef K_DOXYGEN
const struct wl_data_source_interface DataSourceInterface::Private::s_interface = {
offerCallback,
resourceDestroyedCallback,
setActionsCallback
};
#endif
DataSourceInterface::Private::Private(DataSourceInterface *q, DataDeviceManagerInterface *parent, wl_resource *parentResource)
: Resource::Private(q, parent, parentResource, &wl_data_source_interface, &s_interface)
{
}
DataSourceInterface::Private::~Private() = default;
void DataSourceInterface::Private::offerCallback(wl_client *client, wl_resource *resource, const char *mimeType)
{
Q_UNUSED(client)
cast<Private>(resource)->offer(QString::fromUtf8(mimeType));
}
void DataSourceInterface::Private::offer(const QString &mimeType)
{
mimeTypes << mimeType;
Q_Q(DataSourceInterface);
emit q->mimeTypeOffered(mimeType);
}
void DataSourceInterface::Private::setActionsCallback(wl_client *client, wl_resource *resource, uint32_t dnd_actions)
{
Q_UNUSED(client)
DataDeviceManagerInterface::DnDActions supportedActions;
if (dnd_actions & WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY) {
supportedActions |= DataDeviceManagerInterface::DnDAction::Copy;
}
if (dnd_actions & WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE) {
supportedActions |= DataDeviceManagerInterface::DnDAction::Move;
}
if (dnd_actions & WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK) {
supportedActions |= DataDeviceManagerInterface::DnDAction::Ask;
}
// verify that the no other actions are sent
if (dnd_actions & ~(WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY | WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE | WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK)) {
wl_resource_post_error(resource, WL_DATA_SOURCE_ERROR_INVALID_ACTION_MASK, "Invalid action mask");
return;
}
auto p = cast<Private>(resource);
if (p->supportedDnDActions!= supportedActions) {
p->supportedDnDActions = supportedActions;
emit p->q_func()->supportedDragAndDropActionsChanged();
}
}
DataSourceInterface::DataSourceInterface(DataDeviceManagerInterface *parent, wl_resource *parentResource)
: AbstractDataSource(new Private(this, parent, parentResource))
{
if (wl_resource_get_version(parentResource) < WL_DATA_SOURCE_ACTION_SINCE_VERSION) {
Q_D();
d->supportedDnDActions = DataDeviceManagerInterface::DnDAction::Copy;
}
}
DataSourceInterface::~DataSourceInterface() = default;
void DataSourceInterface::accept(const QString &mimeType)
{
Q_D();
// TODO: does this require a sanity check on the possible mimeType?
wl_data_source_send_target(d->resource, mimeType.isEmpty() ? nullptr : mimeType.toUtf8().constData());
}
void DataSourceInterface::requestData(const QString &mimeType, qint32 fd)
{
Q_D();
// TODO: does this require a sanity check on the possible mimeType?
if (d->resource) {
wl_data_source_send_send(d->resource, mimeType.toUtf8().constData(), int32_t(fd));
}
close(fd);
}
void DataSourceInterface::cancel()
{
Q_D();
if (!d->resource) {
return;
}
wl_data_source_send_cancelled(d->resource);
Resource::client()->flush();
}
QStringList DataSourceInterface::mimeTypes() const
{
Q_D();
return d->mimeTypes;
}
DataSourceInterface *DataSourceInterface::get(wl_resource *native)
{
return Private::get<DataSourceInterface>(native);
}
DataSourceInterface::Private *DataSourceInterface::d_func() const
{
return reinterpret_cast<DataSourceInterface::Private*>(d.data());
}
DataDeviceManagerInterface::DnDActions DataSourceInterface::supportedDragAndDropActions() const
{
Q_D();
return d->supportedDnDActions;
}
void DataSourceInterface::dropPerformed()
{
Q_D();
if (wl_resource_get_version(d->resource) < WL_DATA_SOURCE_DND_DROP_PERFORMED_SINCE_VERSION) {
return;
}
wl_data_source_send_dnd_drop_performed(d->resource);
}
void DataSourceInterface::dndFinished()
{
Q_D();
if (wl_resource_get_version(d->resource) < WL_DATA_SOURCE_DND_FINISHED_SINCE_VERSION) {
return;
}
wl_data_source_send_dnd_finished(d->resource);
}
void DataSourceInterface::dndAction(DataDeviceManagerInterface::DnDAction action)
{
Q_D();
if (wl_resource_get_version(d->resource) < WL_DATA_SOURCE_ACTION_SINCE_VERSION) {
return;
}
uint32_t wlAction = WL_DATA_DEVICE_MANAGER_DND_ACTION_NONE;
if (action == DataDeviceManagerInterface::DnDAction::Copy) {
wlAction = WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY;
} else if (action == DataDeviceManagerInterface::DnDAction::Move ) {
wlAction = WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE;
} else if (action == DataDeviceManagerInterface::DnDAction::Ask) {
wlAction = WL_DATA_DEVICE_MANAGER_DND_ACTION_ASK;
}
wl_data_source_send_action(d->resource, wlAction);
}
}