kwin/wayland_client/shell.cpp
Martin Gräßlin 8c4bc3ba45 [kwin_wayland] Split out wl_shell and wl_shell_surface into dedicated classes
New classes Shell and ShellSurface are created. Both are in shell.[h|cpp]
to indicate their close relationship with the Shell having to create the
ShellSurface.

WaylandBackend is adjusted to hold a Shell* and ShellSurface* instead of
the lower level structs. This also required adjustements to the creation
of the Backend as it now doesn't set a default size any more. Thus the
backendReady signal may not be emitted before the initial configure
event arrived. This also makes it easier to support either the fullscreen
shell or wl_shell at the same time.

Of course a unit test is added for the two new classes. This needs to
be extended once we have more control over the mock Wayland server.
2014-08-27 08:57:06 +02:00

164 lines
3.8 KiB
C++

/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2014 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "shell.h"
#include "output.h"
namespace KWin
{
namespace Wayland
{
Shell::Shell(QObject *parent)
: QObject(parent)
, m_shell(nullptr)
{
}
Shell::~Shell()
{
release();
}
void Shell::destroy()
{
if (!m_shell) {
return;
}
emit interfaceAboutToBeDestroyed();
free(m_shell);
m_shell = nullptr;
}
void Shell::release()
{
if (!m_shell) {
return;
}
emit interfaceAboutToBeReleased();
wl_shell_destroy(m_shell);
m_shell = nullptr;
}
void Shell::setup(wl_shell *shell)
{
Q_ASSERT(!m_shell);
Q_ASSERT(shell);
m_shell = shell;
}
ShellSurface *Shell::createSurface(wl_surface *surface, QObject *parent)
{
Q_ASSERT(isValid());
ShellSurface *s = new ShellSurface(parent);
connect(this, &Shell::interfaceAboutToBeReleased, s, &ShellSurface::release);
connect(this, &Shell::interfaceAboutToBeDestroyed, s, &ShellSurface::destroy);
s->setup(wl_shell_get_shell_surface(m_shell, surface));
return s;
}
ShellSurface::ShellSurface(QObject *parent)
: QObject(parent)
, m_surface(nullptr)
, m_size()
{
}
ShellSurface::~ShellSurface()
{
release();
}
void ShellSurface::release()
{
if (!isValid()) {
return;
}
wl_shell_surface_destroy(m_surface);
m_surface = nullptr;
}
void ShellSurface::destroy()
{
if (!isValid()) {
return;
}
free(m_surface);
m_surface = nullptr;
}
const struct wl_shell_surface_listener ShellSurface::s_listener = {
ShellSurface::pingCallback,
ShellSurface::configureCallback,
ShellSurface::popupDoneCallback
};
void ShellSurface::configureCallback(void *data, wl_shell_surface *shellSurface, uint32_t edges, int32_t width, int32_t height)
{
Q_UNUSED(edges)
ShellSurface *s = reinterpret_cast<ShellSurface*>(data);
Q_ASSERT(s->m_surface == shellSurface);
s->setSize(QSize(width, height));
}
void ShellSurface::pingCallback(void *data, wl_shell_surface *shellSurface, uint32_t serial)
{
ShellSurface *s = reinterpret_cast<ShellSurface*>(data);
Q_ASSERT(s->m_surface == shellSurface);
s->ping(serial);
}
void ShellSurface::popupDoneCallback(void *data, wl_shell_surface *shellSurface)
{
// not needed, we don't have popups
Q_UNUSED(data)
Q_UNUSED(shellSurface)
}
void ShellSurface::setup(wl_shell_surface *surface)
{
Q_ASSERT(surface);
Q_ASSERT(!m_surface);
m_surface = surface;
wl_shell_surface_add_listener(m_surface, &s_listener, this);
}
void ShellSurface::ping(uint32_t serial)
{
wl_shell_surface_pong(m_surface, serial);
emit pinged();
}
void ShellSurface::setSize(const QSize &size)
{
if (m_size == size) {
return;
}
m_size = size;
emit sizeChanged(size);
}
void ShellSurface::setFullscreen(Output *output)
{
Q_ASSERT(isValid());
wl_shell_surface_set_fullscreen(m_surface, WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT, 0, output ? output->output() : nullptr);
}
}
}