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/****************************************************************************
**
** This file is part of QtCompositor**
**
** Copyright © 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
**
** Contact: Nokia Corporation qt-info@nokia.com
**
** You may use this file under the terms of the BSD license as follows:
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**
** Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
**
** Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
**
** Neither the name of Nokia Corporation and its Subsidiary(-ies) nor the
** names of its contributors may be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
****************************************************************************/
#include "wldrag.h"
#include "wlcompositor.h"
#include "wlsurface.h"
#include <wayland-util.h>
#include <string.h>
#include <unistd.h>
#include <QDebug>
namespace Wayland {
void Drag::dragOfferAccept(struct wl_client *client,
struct wl_drag_offer *offer, uint32_t time, const char *type)
{
qDebug() << "dragOfferAccept" << client << offer << type;
Q_UNUSED(time);
Drag *self = Drag::instance();
struct wl_drag *drag = container_of(offer, struct wl_drag, drag_offer);
drag->target = client;
QString wantedType = QString::fromLatin1(type);
if (!self->m_offerList.contains(wantedType)) {
qWarning("dragOfferAccept: Client accepted type '%s' that has not been offered",
qPrintable(type));
type = 0;
}
wl_client_post_event(drag->source->client, &drag->resource.object,
WL_DRAG_TARGET, type);
}
void Drag::dragOfferReceive(struct wl_client *client,
struct wl_drag_offer *offer, int fd)
{
qDebug() << "dragOfferReceive" << client << offer << fd;
Q_UNUSED(client);
struct wl_drag *drag = container_of(offer, struct wl_drag, drag_offer);
wl_client_post_event(drag->source->client, &drag->resource.object,
WL_DRAG_FINISH, fd);
close(fd);
}
void Drag::dragOfferReject(struct wl_client *client, struct wl_drag_offer *offer)
{
qDebug() << "dragOfferReject" << client << offer;
Q_UNUSED(client);
struct wl_drag *drag = container_of(offer, struct wl_drag, drag_offer);
if (drag->target == client)
drag->target = 0;
wl_client_post_event(drag->source->client, &drag->resource.object,
WL_DRAG_REJECT);
}
const struct wl_drag_offer_interface Drag::dragOfferInterface = {
Drag::dragOfferAccept,
Drag::dragOfferReceive,
Drag::dragOfferReject
};
void Drag::dragOffer(struct wl_client *client, struct wl_drag *drag, const char *type)
{
qDebug() << "dragOffer" << client << drag << type;
Q_UNUSED(client);
Q_UNUSED(drag);
instance()->m_offerList.append(QString::fromLatin1(type));
}
void Drag::dragActivate(struct wl_client *client,
struct wl_drag *drag,
struct wl_surface *surface,
struct wl_input_device *device, uint32_t time)
{
qDebug() << "dragActivate" << client << drag << surface;
Q_UNUSED(client);
Q_UNUSED(device);
Q_UNUSED(time);
Drag *self = Drag::instance();
drag->source = surface;
drag->drag_offer.object.interface = &wl_drag_offer_interface;
drag->drag_offer.object.implementation = (void (**)()) &dragOfferInterface;
wl_display *dpy = Compositor::instance()->wl_display();
wl_display_add_object(dpy, &drag->drag_offer.object);
wl_display_add_global(dpy, &drag->drag_offer.object, 0);
Surface *focus = Compositor::instance()->pointerFocus();
QPoint pos;
if (focus)
pos = focus->lastMousePos();
// ### Sending local as global, which is wrong, but oh well.
self->setPointerFocus(surface, pos, pos);
}
void Drag::setPointerFocus(wl_surface *surface, const QPoint &global, const QPoint &local)
{
if (!m_drag)
return;
if (m_drag->drag_focus == surface)
return;
uint timestamp = Compositor::currentTimeMsecs();
if (m_drag->drag_focus
&& (!surface || m_drag->drag_focus->client != surface->client)) {
qDebug() << "WL_DRAG_OFFER_POINTER_FOCUS with null";
wl_client_post_event(m_drag->drag_focus->client,
&m_drag->drag_offer.object,
WL_DRAG_OFFER_POINTER_FOCUS,
timestamp, 0, 0, 0, 0, 0);
}
if (surface
&& (!m_drag->drag_focus || m_drag->drag_focus->client != surface->client)) {
wl_client_post_global(surface->client,
&m_drag->drag_offer.object);
foreach (const QString &format, m_offerList) {
QByteArray mimeTypeBa = format.toLatin1();
qDebug() << "WL_DRAG_OFFER_OFFER" << mimeTypeBa;
wl_client_post_event(surface->client, &m_drag->drag_offer.object,
WL_DRAG_OFFER_OFFER, mimeTypeBa.constData());
}
}
if (surface) {
qDebug() << "WL_DRAG_OFFER_POINTER_FOCUS" << surface << global << local;
wl_client_post_event(surface->client,
&m_drag->drag_offer.object,
WL_DRAG_OFFER_POINTER_FOCUS,
timestamp, surface,
global.x(), global.y(), local.x(), local.y());
Compositor::instance()->m_dragActive = true;
}
m_drag->drag_focus = surface;
m_drag->target = 0;
}
void Drag::dragDestroy(struct wl_client *client, struct wl_drag *drag)
{
qDebug() << "dragDestroy";
wl_resource_destroy(&drag->resource, client, Compositor::currentTimeMsecs());
}
const struct wl_drag_interface Drag::dragInterface = {
Drag::dragOffer,
Drag::dragActivate,
Drag::dragDestroy
};
void Drag::destroyDrag(struct wl_resource *resource, struct wl_client *client)
{
Q_UNUSED(client);
struct wl_drag *drag = container_of(resource, struct wl_drag, resource);
wl_display *dpy = Compositor::instance()->wl_display();
wl_display_remove_global(dpy, &drag->drag_offer.object);
delete drag;
}
void Drag::create(struct wl_client *client, uint32_t id)
{
Q_UNUSED(client);
m_offerList.clear();
wl_drag *drag = new wl_drag;
memset(drag, 0, sizeof *drag);
drag->resource.object.id = id;
drag->resource.object.interface = &wl_drag_interface;
drag->resource.object.implementation = (void (**)()) &dragInterface;
drag->resource.destroy = destroyDrag;
wl_client_add_resource(client, &drag->resource);
m_drag = drag;
}
void Drag::done(bool sending)
{
qDebug() << "drag done";
Compositor::instance()->m_dragActive = false;
if (!sending) {
setPointerFocus(0, QPoint(), QPoint());
// ### hack: Send a pointerFocus with null surface to the source too, this is
// mandatory even if the previous pointerFocus went to the same client, otherwise
// Qt will not know the drag is over without a drop.
wl_client_post_event(m_drag->source->client,
&m_drag->drag_offer.object,
WL_DRAG_OFFER_POINTER_FOCUS,
Compositor::instance()->currentTimeMsecs(),
0, 0, 0, 0, 0);
}
m_drag = 0;
}
void Drag::dragMove(const QPoint &global, const QPoint &local, Surface *surface)
{
if (!m_drag)
return;
// qDebug() << "dragMove" << global << local << surface;
if (surface) {
setPointerFocus(surface->base(), global, local);
uint timestamp = Compositor::currentTimeMsecs();
wl_client_post_event(surface->base()->client,
&m_drag->drag_offer.object,
WL_DRAG_OFFER_MOTION,
timestamp,
global.x(), global.y(), local.x(), local.y());
} else {
setPointerFocus(0, global, local);
}
}
void Drag::dragEnd()
{
qDebug() << "dragEnd";
if (!m_drag)
return;
if (m_drag->target) {
qDebug() << "WL_DRAG_OFFER_DROP" << m_drag->target;
wl_client_post_event(m_drag->target,
&m_drag->drag_offer.object,
WL_DRAG_OFFER_DROP);
done(true);
} else {
done(false);
}
}
Q_GLOBAL_STATIC(Drag, globalInstance)
Drag *Drag::instance()
{
return globalInstance();
}
Drag::Drag()
: m_drag(0)
{
}
}
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