mirror of
https://bitbucket.org/smil3y/kde-workspace.git
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219 lines
8.9 KiB
C++
219 lines
8.9 KiB
C++
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/***************************************************************************
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* Copyright (C) 2011, 2012 Albert Astals Cid <aacid@kde.org> *
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* *
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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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* *
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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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* *
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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, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#include "ktouchpadenabler_daemon.h"
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#include "settings.h"
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#include <KApplication>
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#include <KDebug>
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#include <KLocalizedString>
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#include <KNotification>
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#include <KPluginFactory>
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#include <QWidget>
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#include <X11/Xatom.h>
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#include <X11/extensions/XInput2.h>
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#include <X11/XF86keysym.h>
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class TouchpadEnablerDaemonPrivate : public QWidget
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{
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public:
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TouchpadEnablerDaemonPrivate();
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~TouchpadEnablerDaemonPrivate();
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bool initSuccessful() const { return m_keyCode != 0; }
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bool x11Event(XEvent *event);
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private:
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enum TouchpadKey { ToggleKey = 0, OnKey, OffKey };
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static const int nKeys = OffKey + 1;
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bool getEnabled(bool *currentValue) const;
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void setEnabled(bool enabled) const;
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Display *m_display;
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KeyCode m_keyCode[nKeys];
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int m_deviceId;
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Atom m_enabledProperty;
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};
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TouchpadEnablerDaemonPrivate::TouchpadEnablerDaemonPrivate()
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{
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bool foundTouchpad = false;
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bool foundMoreThanOneTouchpad = false;
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for (int i = 0; i < nKeys; ++i) {
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m_keyCode[i] = 0;
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}
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m_display = QX11Info::display();
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if (!m_display) {
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kWarning() << "Did not find a display to use. This should never happen, thus doing nothing. Please report a bug against ktouchpadenabler in http://bugs.kde.org";
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return;
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}
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Atom synapticsProperty = XInternAtom (m_display, "Synaptics Off", False);
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m_enabledProperty = XInternAtom (m_display, "Device Enabled", False);
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if (synapticsProperty && m_enabledProperty) {
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int nDevices;
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XIDeviceInfo *devices = XIQueryDevice(m_display, XIAllDevices, &nDevices);
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for (int i = 0; i < nDevices; ++i) {
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Atom realtype;
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int realformat;
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unsigned long nitems, bytes_after;
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unsigned char *data;
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if ((XIGetProperty (m_display, devices[i].deviceid, synapticsProperty, 0, 1, False, XA_INTEGER, &realtype, &realformat, &nitems, &bytes_after, &data) == Success) && (realtype != None)) {
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XFree (data);
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if ((XIGetProperty (m_display, devices[i].deviceid, m_enabledProperty, 0, 1, False, XA_INTEGER, &realtype, &realformat, &nitems, &bytes_after, &data) == Success) && (realtype != None)) {
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XFree (data);
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if (foundTouchpad) {
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foundMoreThanOneTouchpad = true;
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} else {
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m_deviceId = devices[i].deviceid;
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foundTouchpad = true;
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}
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}
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}
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}
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if (devices) {
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XIFreeDeviceInfo(devices);
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}
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} else {
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kWarning() << "Could not get atoms for 'Synaptics Off' or 'Device Enabled'. This should never happen, thus doing nothing. Please report a bug against ktouchpadenabler in http://bugs.kde.org";
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}
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if (foundTouchpad) {
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if (!foundMoreThanOneTouchpad) {
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m_keyCode[ToggleKey] = XKeysymToKeycode(m_display, XF86XK_TouchpadToggle);
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m_keyCode[OnKey] = XKeysymToKeycode(m_display, XF86XK_TouchpadOn);
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m_keyCode[OffKey] = XKeysymToKeycode(m_display, XF86XK_TouchpadOff);
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for (int i = 0; i < nKeys; ++i) {
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if (m_keyCode[i] != 0) {
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const int grabResult = XGrabKey(m_display, m_keyCode[i], AnyModifier, QX11Info::appRootWindow(), False, GrabModeAsync, GrabModeAsync);
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if (grabResult == BadAccess || grabResult == BadValue || grabResult == BadWindow) {
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kDebug() << "Could not grab ktouchpadenabler key index" << i <<". You probably have some other program grabbig it, if you are sure you don't have any, please report a bug against ktouchpadenabler in http://bugs.kde.org";
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m_keyCode[i] = 0;
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} else {
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bool currentlyEnabled;
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if (getEnabled(¤tlyEnabled)) {
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const bool newValue = ktouchpadenabler::Settings::self()->touchpadEnabled();
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if (newValue != currentlyEnabled) {
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setEnabled(newValue);
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}
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}
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}
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} else {
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kWarning() << "Could not match ktouchpadenabler key index" << i << "to a Keycode. This should never happen. Please report a bug against ktouchpadenabler in http://bugs.kde.org";
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}
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}
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} else {
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KNotification *notification = KNotification::event(KNotification::Warning, i18n("Touchpad status"), i18n("More than one touchpad detected. Touchpad Enabler Daemon does not handle this configuration"));
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notification->sendEvent();
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}
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} else {
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kDebug() << "Did not find a touchpad. If you have one, please report a bug against ktouchpadenabler in http://bugs.kde.org";
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}
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}
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TouchpadEnablerDaemonPrivate::~TouchpadEnablerDaemonPrivate()
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{
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for (int i = 0; i < nKeys; ++i) {
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if (m_keyCode[i] != 0) {
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XUngrabKey(m_display, m_keyCode[i], 0 /* No modifiers */, QX11Info::appRootWindow());
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}
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}
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}
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bool TouchpadEnablerDaemonPrivate::x11Event(XEvent *event)
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{
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if (event->type == KeyPress) {
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for (int i = 0; i < nKeys; ++i) {
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if (event->xkey.keycode == m_keyCode[i]) {
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bool currentlyEnabled;
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if (getEnabled(¤tlyEnabled)) {
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bool newValue;
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switch (i) {
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case ToggleKey: newValue = !currentlyEnabled; break;
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case OnKey: newValue = true; break;
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case OffKey: newValue = false; break;
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}
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if (newValue != currentlyEnabled) {
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setEnabled(newValue);
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KNotification *notification = KNotification::event(KNotification::Notification, i18n("Touchpad status"), newValue ? i18n("Touchpad enabled") : i18n("Touchpad disabled"));
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notification->sendEvent();
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ktouchpadenabler::Settings::self()->setTouchpadEnabled(newValue);
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ktouchpadenabler::Settings::self()->writeConfig();
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}
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return true;
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}
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}
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}
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}
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return false;
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}
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bool TouchpadEnablerDaemonPrivate::getEnabled(bool *enabled) const
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{
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Atom realtype;
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int realformat;
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unsigned long nitems, bytes_after;
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unsigned char *value;
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if ((XIGetProperty(m_display, m_deviceId, m_enabledProperty, 0, 1, False, XA_INTEGER, &realtype, &realformat, &nitems, &bytes_after, &value) == Success) && (realtype != None)) {
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*enabled = (*value == 1);
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XFree(value);
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return true;
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} else {
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return false;
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}
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}
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void TouchpadEnablerDaemonPrivate::setEnabled(bool enabled) const
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{
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unsigned char newValue = enabled ? 1 : 0;
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XIChangeProperty(m_display, m_deviceId, m_enabledProperty, XA_INTEGER, 8, PropModeReplace, &newValue, 1);
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XFlush(m_display);
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}
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TouchpadEnablerDaemon::TouchpadEnablerDaemon(QObject *parent, const QList<QVariant>&)
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: KDEDModule(parent)
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{
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d = new TouchpadEnablerDaemonPrivate();
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if (d->initSuccessful()) {
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kapp->installX11EventFilter(d);
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} else {
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delete d;
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d = 0;
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}
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}
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TouchpadEnablerDaemon::~TouchpadEnablerDaemon()
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{
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delete d;
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}
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K_PLUGIN_FACTORY(TouchpadEnablerFactory, registerPlugin<TouchpadEnablerDaemon>();)
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K_EXPORT_PLUGIN(TouchpadEnablerFactory("ktouchpadenabler"))
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