174 lines
5.4 KiB
C++
174 lines
5.4 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) 2017 Martin Flöser <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 "x11_filter.h"
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#include "effects.h"
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#include "screenedge.h"
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#include "tabbox/tabbox.h"
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#include <KKeyServer>
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#include <xcb/xcb.h>
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namespace KWin
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{
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namespace TabBox
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{
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X11Filter::X11Filter()
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: X11EventFilter(QVector<int>{XCB_KEY_PRESS, XCB_KEY_RELEASE, XCB_MOTION_NOTIFY, XCB_BUTTON_PRESS, XCB_BUTTON_RELEASE})
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{
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}
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template <typename T>
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static bool passToEffects(T *e)
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{
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const auto tab = TabBox::TabBox::self();
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if (!tab->isShown() && tab->isDisplayed()) {
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if (effects && static_cast<EffectsHandlerImpl*>(effects)->checkInputWindowEvent(e)) {
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return true;
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}
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}
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return false;
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}
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bool X11Filter::event(xcb_generic_event_t *event)
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{
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if (!TabBox::TabBox::self()->isGrabbed()) {
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return false;
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}
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const uint8_t eventType = event->response_type & ~0x80;
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switch (eventType) {
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case XCB_BUTTON_PRESS:
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case XCB_BUTTON_RELEASE: {
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auto e = reinterpret_cast<xcb_button_press_event_t*>(event);
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xcb_allow_events(connection(), XCB_ALLOW_ASYNC_POINTER, XCB_CURRENT_TIME);
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if (passToEffects(e)) {
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return true;
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}
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if (eventType == XCB_BUTTON_PRESS) {
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return buttonPress(e);
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}
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return false;
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}
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case XCB_MOTION_NOTIFY: {
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return motion(event);
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}
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case XCB_KEY_PRESS: {
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keyPress(event);
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return true;
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}
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case XCB_KEY_RELEASE:
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keyRelease(event);
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return true;
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}
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return false;
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}
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bool X11Filter::buttonPress(xcb_button_press_event_t *event)
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{
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// press outside Tabbox?
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const auto tab = TabBox::TabBox::self();
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QPoint pos(event->root_x, event->root_y);
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if ((!tab->isShown() && tab->isDisplayed())
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|| (!tabBox->containsPos(pos) &&
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(event->detail == XCB_BUTTON_INDEX_1 || event->detail == XCB_BUTTON_INDEX_2 || event->detail == XCB_BUTTON_INDEX_3))) {
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tab->close(); // click outside closes tab
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return true;
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}
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if (event->detail == XCB_BUTTON_INDEX_5 || event->detail == XCB_BUTTON_INDEX_4) {
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// mouse wheel event
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const QModelIndex index = tabBox->nextPrev(event->detail == XCB_BUTTON_INDEX_5);
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if (index.isValid()) {
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tab->setCurrentIndex(index);
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}
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return true;
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}
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return false;
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}
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bool X11Filter::motion(xcb_generic_event_t *event)
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{
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auto *mouseEvent = reinterpret_cast<xcb_motion_notify_event_t*>(event);
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const QPoint rootPos(mouseEvent->root_x, mouseEvent->root_y);
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// TODO: this should be in ScreenEdges directly
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ScreenEdges::self()->check(rootPos, QDateTime::fromMSecsSinceEpoch(xTime()), true);
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xcb_allow_events(connection(), XCB_ALLOW_ASYNC_POINTER, XCB_CURRENT_TIME);
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if (passToEffects(mouseEvent)) {
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return true;
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}
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return false;
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}
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void X11Filter::keyPress(xcb_generic_event_t *event)
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{
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int keyQt;
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xcb_key_press_event_t *keyEvent = reinterpret_cast<xcb_key_press_event_t*>(event);
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KKeyServer::xcbKeyPressEventToQt(keyEvent, &keyQt);
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TabBox::TabBox::self()->keyPress(keyQt);
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}
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void X11Filter::keyRelease(xcb_generic_event_t *event)
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{
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const auto ev = reinterpret_cast<xcb_key_release_event_t*>(event);
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unsigned int mk = ev->state &
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(KKeyServer::modXShift() |
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KKeyServer::modXCtrl() |
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KKeyServer::modXAlt() |
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KKeyServer::modXMeta());
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// ev.state is state before the key release, so just checking mk being 0 isn't enough
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// using XQueryPointer() also doesn't seem to work well, so the check that all
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// modifiers are released: only one modifier is active and the currently released
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// key is this modifier - if yes, release the grab
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int mod_index = -1;
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for (int i = XCB_MAP_INDEX_SHIFT;
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i <= XCB_MAP_INDEX_5;
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++i)
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if ((mk & (1 << i)) != 0) {
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if (mod_index >= 0)
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return;
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mod_index = i;
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}
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bool release = false;
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if (mod_index == -1)
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release = true;
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else {
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Xcb::ModifierMapping xmk;
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if (xmk) {
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xcb_keycode_t *keycodes = xmk.keycodes();
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const int maxIndex = xmk.size();
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for (int i = 0; i < xmk->keycodes_per_modifier; ++i) {
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const int index = xmk->keycodes_per_modifier * mod_index + i;
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if (index >= maxIndex) {
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continue;
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}
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if (keycodes[index] == ev->detail) {
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release = true;
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}
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}
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}
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}
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if (release) {
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TabBox::TabBox::self()->modifiersReleased();
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}
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}
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}
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}
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