337 lines
12 KiB
C++
337 lines
12 KiB
C++
/**
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* Copyright 2014 Ahmed I. Khalil <ahmedibrahimkhali@gmail.com>
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* Copyright 2015 Martin Gräßlin <mgraesslin@kde.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License or (at your option) version 3 or any later version
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* accepted by the membership of KDE e.V. (or its successor approved
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* by the membership of KDE e.V.), which shall act as a proxy
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* defined in Section 14 of version 3 of the license.
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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, see <http://www.gnu.org/licenses/>.
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*/
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#include "mousepadplugin.h"
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#include <KPluginFactory>
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#include <KLocalizedString>
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#include <QDebug>
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#include <QGuiApplication>
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#if HAVE_X11
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#include <QX11Info>
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#include <X11/extensions/XTest.h>
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#include <X11/keysym.h>
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#include <fakekey/fakekey.h>
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#endif
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#if HAVE_WAYLAND
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#include <KWayland/Client/connection_thread.h>
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#include <KWayland/Client/fakeinput.h>
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#include <KWayland/Client/registry.h>
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#endif
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K_PLUGIN_FACTORY_WITH_JSON( KdeConnectPluginFactory, "kdeconnect_mousepad.json", registerPlugin< MousepadPlugin >(); )
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enum MouseButtons {
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LeftMouseButton = 1,
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MiddleMouseButton = 2,
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RightMouseButton = 3,
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MouseWheelUp = 4,
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MouseWheelDown = 5
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};
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#if HAVE_X11
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//Translation table to keep in sync within all the implementations
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int SpecialKeysMap[] = {
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0, // Invalid
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XK_BackSpace, // 1
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XK_Tab, // 2
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XK_Linefeed, // 3
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XK_Left, // 4
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XK_Up, // 5
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XK_Right, // 6
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XK_Down, // 7
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XK_Page_Up, // 8
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XK_Page_Down, // 9
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XK_Home, // 10
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XK_End, // 11
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XK_Return, // 12
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XK_Delete, // 13
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XK_Escape, // 14
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XK_Sys_Req, // 15
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XK_Scroll_Lock, // 16
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0, // 17
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0, // 18
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0, // 19
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0, // 20
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XK_F1, // 21
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XK_F2, // 22
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XK_F3, // 23
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XK_F4, // 24
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XK_F5, // 25
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XK_F6, // 26
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XK_F7, // 27
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XK_F8, // 28
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XK_F9, // 29
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XK_F10, // 30
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XK_F11, // 31
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XK_F12, // 32
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};
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#endif
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template <typename T, size_t N>
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size_t arraySize(T(&arr)[N]) { (void)arr; return N; }
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MousepadPlugin::MousepadPlugin(QObject* parent, const QVariantList& args)
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: KdeConnectPlugin(parent, args)
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#if HAVE_X11
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, m_fakekey(nullptr)
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, m_x11(QX11Info::isPlatformX11())
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#else
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, m_x11(false)
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#endif
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#if HAVE_WAYLAND
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, m_waylandInput(nullptr)
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, m_waylandAuthenticationRequested(false)
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#endif
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{
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#if HAVE_WAYLAND
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setupWaylandIntegration();
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#endif
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}
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MousepadPlugin::~MousepadPlugin()
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{
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#if HAVE_X11
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if (m_fakekey) {
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free(m_fakekey);
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m_fakekey = nullptr;
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}
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#endif
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}
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bool MousepadPlugin::receivePackage(const NetworkPackage& np)
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{
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#if HAVE_X11
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if (m_x11) {
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return handlePackageX11(np);
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}
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#endif
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#if HAVE_WAYLAND
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if (m_waylandInput) {
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if (!m_waylandAuthenticationRequested) {
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m_waylandInput->authenticate(i18n("KDE Connect"), i18n("Use your phone as a touchpad and keyboard"));
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m_waylandAuthenticationRequested = true;
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}
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handPackageWayland(np);
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}
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#endif
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return false;
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}
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#if HAVE_X11
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bool isLeftHanded(Display * display)
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{
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unsigned char map[20];
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int num_buttons = XGetPointerMapping(display, map, 20);
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if( num_buttons == 1 ) {
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return false;
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} else if( num_buttons == 2 ) {
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return ( (int)map[0] == 2 && (int)map[1] == 1 );
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} else {
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return ( (int)map[0] == 3 && (int)map[2] == 1 );
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}
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}
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#endif
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#if HAVE_X11
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bool MousepadPlugin::handlePackageX11(const NetworkPackage &np)
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{
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//qDebug() << np.serialize();
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//TODO: Split mouse/keyboard in two different plugins to avoid this big if statement
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float dx = np.get<float>(QStringLiteral("dx"), 0);
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float dy = np.get<float>(QStringLiteral("dy"), 0);
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bool isSingleClick = np.get<bool>(QStringLiteral("singleclick"), false);
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bool isDoubleClick = np.get<bool>(QStringLiteral("doubleclick"), false);
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bool isMiddleClick = np.get<bool>(QStringLiteral("middleclick"), false);
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bool isRightClick = np.get<bool>(QStringLiteral("rightclick"), false);
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bool isSingleHold = np.get<bool>(QStringLiteral("singlehold"), false);
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bool isSingleRelease = np.get<bool>(QStringLiteral("singlerelease"), false);
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bool isScroll = np.get<bool>(QStringLiteral("scroll"), false);
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QString key = np.get<QString>(QStringLiteral("key"), QLatin1String(""));
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int specialKey = np.get<int>(QStringLiteral("specialKey"), 0);
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if (isSingleClick || isDoubleClick || isMiddleClick || isRightClick || isSingleHold || isScroll || !key.isEmpty() || specialKey) {
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Display *display = QX11Info::display();
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if(!display) {
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return false;
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}
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bool leftHanded = isLeftHanded(display);
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int mainMouseButton = leftHanded? RightMouseButton : LeftMouseButton;
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int secondaryMouseButton = leftHanded? LeftMouseButton : RightMouseButton;
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if (isSingleClick) {
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XTestFakeButtonEvent(display, mainMouseButton, True, 0);
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XTestFakeButtonEvent(display, mainMouseButton, False, 0);
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} else if (isDoubleClick) {
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XTestFakeButtonEvent(display, mainMouseButton, True, 0);
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XTestFakeButtonEvent(display, mainMouseButton, False, 0);
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XTestFakeButtonEvent(display, mainMouseButton, True, 0);
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XTestFakeButtonEvent(display, mainMouseButton, False, 0);
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} else if (isMiddleClick) {
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XTestFakeButtonEvent(display, MiddleMouseButton, True, 0);
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XTestFakeButtonEvent(display, MiddleMouseButton, False, 0);
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} else if (isRightClick) {
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XTestFakeButtonEvent(display, secondaryMouseButton, True, 0);
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XTestFakeButtonEvent(display, secondaryMouseButton, False, 0);
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} else if (isSingleHold){
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//For drag'n drop
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XTestFakeButtonEvent(display, mainMouseButton, True, 0);
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} else if (isSingleRelease){
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//For drag'n drop. NEVER USED (release is done by tapping, which actually triggers a isSingleClick). Kept here for future-proofnes.
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XTestFakeButtonEvent(display, mainMouseButton, False, 0);
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} else if (isScroll) {
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if (dy < 0) {
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XTestFakeButtonEvent(display, MouseWheelDown, True, 0);
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XTestFakeButtonEvent(display, MouseWheelDown, False, 0);
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} else if (dy > 0) {
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XTestFakeButtonEvent(display, MouseWheelUp, True, 0);
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XTestFakeButtonEvent(display, MouseWheelUp, False, 0);
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}
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} else if (!key.isEmpty() || specialKey) {
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bool ctrl = np.get<bool>(QStringLiteral("ctrl"), false);
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bool alt = np.get<bool>(QStringLiteral("alt"), false);
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bool shift = np.get<bool>(QStringLiteral("shift"), false);
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if (ctrl) XTestFakeKeyEvent (display, XKeysymToKeycode(display, XK_Control_L), True, 0);
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if (alt) XTestFakeKeyEvent (display, XKeysymToKeycode(display, XK_Alt_L), True, 0);
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if (shift) XTestFakeKeyEvent (display, XKeysymToKeycode(display, XK_Shift_L), True, 0);
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if (specialKey)
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{
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if (specialKey >= (int)arraySize(SpecialKeysMap)) {
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qWarning() << "Unsupported special key identifier";
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return false;
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}
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int keycode = XKeysymToKeycode(display, SpecialKeysMap[specialKey]);
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XTestFakeKeyEvent (display, keycode, True, 0);
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XTestFakeKeyEvent (display, keycode, False, 0);
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} else {
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if (!m_fakekey) {
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m_fakekey = fakekey_init(display);
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if (!m_fakekey) {
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qWarning() << "Failed to initialize libfakekey";
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return false;
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}
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}
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//We use fakekey here instead of XTest (above) because it can handle utf characters instead of keycodes.
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for (int i=0;i<key.length();i++) {
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QByteArray utf8 = QString(key.at(i)).toUtf8();
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fakekey_press(m_fakekey, (const uchar*)utf8.constData(), utf8.size(), 0);
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fakekey_release(m_fakekey);
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}
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}
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if (ctrl) XTestFakeKeyEvent (display, XKeysymToKeycode(display, XK_Control_L), False, 0);
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if (alt) XTestFakeKeyEvent (display, XKeysymToKeycode(display, XK_Alt_L), False, 0);
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if (shift) XTestFakeKeyEvent (display, XKeysymToKeycode(display, XK_Shift_L), False, 0);
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}
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XFlush(display);
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} else { //Is a mouse move event
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QPoint point = QCursor::pos();
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QCursor::setPos(point.x() + (int)dx, point.y() + (int)dy);
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}
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return true;
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}
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#endif
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#if HAVE_WAYLAND
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void MousepadPlugin::setupWaylandIntegration()
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{
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if (!QGuiApplication::platformName().startsWith(QLatin1String("wayland"), Qt::CaseInsensitive)) {
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// not wayland
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return;
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}
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using namespace KWayland::Client;
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ConnectionThread *connection = ConnectionThread::fromApplication(this);
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if (!connection) {
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// failed to get the Connection from Qt
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return;
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}
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Registry *registry = new Registry(this);
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registry->create(connection);
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connect(registry, &Registry::fakeInputAnnounced, this,
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[this, registry] (quint32 name, quint32 version) {
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m_waylandInput = registry->createFakeInput(name, version, this);
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}
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);
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registry->setup();
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}
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bool MousepadPlugin::handPackageWayland(const NetworkPackage &np)
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{
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const float dx = np.get<float>(QStringLiteral("dx"), 0);
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const float dy = np.get<float>(QStringLiteral("dy"), 0);
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const bool isSingleClick = np.get<bool>(QStringLiteral("singleclick"), false);
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const bool isDoubleClick = np.get<bool>(QStringLiteral("doubleclick"), false);
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const bool isMiddleClick = np.get<bool>(QStringLiteral("middleclick"), false);
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const bool isRightClick = np.get<bool>(QStringLiteral("rightclick"), false);
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const bool isSingleHold = np.get<bool>(QStringLiteral("singlehold"), false);
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const bool isSingleRelease = np.get<bool>(QStringLiteral("singlerelease"), false);
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const bool isScroll = np.get<bool>(QStringLiteral("scroll"), false);
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const QString key = np.get<QString>(QStringLiteral("key"), QLatin1String(""));
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const int specialKey = np.get<int>(QStringLiteral("specialKey"), 0);
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if (isSingleClick || isDoubleClick || isMiddleClick || isRightClick || isSingleHold || isScroll || !key.isEmpty() || specialKey) {
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if (isSingleClick) {
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m_waylandInput->requestPointerButtonClick(Qt::LeftButton);
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} else if (isDoubleClick) {
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m_waylandInput->requestPointerButtonClick(Qt::LeftButton);
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m_waylandInput->requestPointerButtonClick(Qt::LeftButton);
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} else if (isMiddleClick) {
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m_waylandInput->requestPointerButtonClick(Qt::MiddleButton);
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} else if (isRightClick) {
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m_waylandInput->requestPointerButtonClick(Qt::RightButton);
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} else if (isSingleHold){
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//For drag'n drop
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m_waylandInput->requestPointerButtonPress(Qt::LeftButton);
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} else if (isSingleRelease){
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//For drag'n drop. NEVER USED (release is done by tapping, which actually triggers a isSingleClick). Kept here for future-proofnes.
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m_waylandInput->requestPointerButtonRelease(Qt::LeftButton);
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} else if (isScroll) {
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m_waylandInput->requestPointerAxis(Qt::Vertical, dy);
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} else if (!key.isEmpty() || specialKey) {
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// TODO: implement key support
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}
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} else { //Is a mouse move event
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m_waylandInput->requestPointerMove(QSizeF(dx, dy));
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}
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return true;
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}
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#endif
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#include "mousepadplugin.moc"
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