131 lines
3.7 KiB
C++
131 lines
3.7 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2014 Martin Gräßlin <mgraesslin@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "pointer.h"
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#include "surface.h"
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#include <QPointF>
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namespace KWin
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{
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namespace Wayland
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{
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const wl_pointer_listener Pointer::s_listener = {
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Pointer::enterCallback,
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Pointer::leaveCallback,
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Pointer::motionCallback,
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Pointer::buttonCallback,
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Pointer::axisCallback
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};
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Pointer::Pointer(QObject *parent)
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: QObject(parent)
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, m_pointer(nullptr)
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, m_enteredSurface(nullptr)
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{
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}
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Pointer::~Pointer()
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{
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release();
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}
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void Pointer::release()
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{
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if (!m_pointer) {
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return;
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}
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wl_pointer_destroy(m_pointer);
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m_pointer = nullptr;
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}
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void Pointer::setup(wl_pointer *pointer)
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{
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Q_ASSERT(pointer);
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Q_ASSERT(!m_pointer);
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m_pointer = pointer;
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wl_pointer_add_listener(m_pointer, &Pointer::s_listener, this);
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}
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void Pointer::enterCallback(void *data, wl_pointer *pointer, uint32_t serial, wl_surface *surface,
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wl_fixed_t sx, wl_fixed_t sy)
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{
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Pointer *p = reinterpret_cast<Pointer*>(data);
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Q_ASSERT(p->m_pointer == pointer);
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p->enter(serial, surface, QPointF(wl_fixed_to_double(sx), wl_fixed_to_double(sy)));
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}
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void Pointer::enter(uint32_t serial, wl_surface *surface, const QPointF &relativeToSurface)
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{
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m_enteredSurface = Surface::get(surface);
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emit entered(serial, relativeToSurface);
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}
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void Pointer::leaveCallback(void *data, wl_pointer *pointer, uint32_t serial, wl_surface *surface)
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{
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Pointer *p = reinterpret_cast<Pointer*>(data);
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Q_ASSERT(p->m_pointer == pointer);
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Q_ASSERT(*(p->m_enteredSurface) == surface);
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p->leave(serial);
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}
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void Pointer::leave(uint32_t serial)
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{
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m_enteredSurface = nullptr;
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emit left(serial);
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}
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void Pointer::motionCallback(void *data, wl_pointer *pointer, uint32_t time, wl_fixed_t sx, wl_fixed_t sy)
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{
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Pointer *p = reinterpret_cast<Pointer*>(data);
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Q_ASSERT(p->m_pointer == pointer);
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emit p->motion(QPointF(wl_fixed_to_double(sx), wl_fixed_to_double(sy)), time);
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}
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void Pointer::buttonCallback(void *data, wl_pointer *pointer, uint32_t serial, uint32_t time, uint32_t button, uint32_t state)
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{
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Pointer *p = reinterpret_cast<Pointer*>(data);
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Q_ASSERT(p->m_pointer == pointer);
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auto toState = [state] {
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if (state == WL_POINTER_BUTTON_STATE_RELEASED) {
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return ButtonState::Released;
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} else {
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return ButtonState::Pressed;
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}
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};
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emit p->buttonStateChanged(serial, time, button, toState());
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}
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void Pointer::axisCallback(void *data, wl_pointer *pointer, uint32_t time, uint32_t axis, wl_fixed_t value)
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{
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Pointer *p = reinterpret_cast<Pointer*>(data);
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Q_ASSERT(p->m_pointer == pointer);
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auto toAxis = [axis] {
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if (axis == WL_POINTER_AXIS_HORIZONTAL_SCROLL) {
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return Axis::Horizontal;
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} else {
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return Axis::Vertical;
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}
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};
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emit p->axisChanged(time, toAxis(), wl_fixed_to_double(value));
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}
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}
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}
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