File indexing completed on 2025-01-26 05:06:34

 /*
     SPDX-FileCopyrightText: 2017 Xuetian Weng <wengxt@gmail.com>
     SPDX-FileCopyrightText: 2018 Roman Gilg <subdiff@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "x11_backend.h"
 #include "x11_libinput_backend.h"
 
 #include "logging.h"
 
 #include <config-X11.h>
 
 #include <libinput-properties.h>
 
 #include <KConfig>
 #include <KConfigGroup>
 #include <KLocalizedString>
 #include <KSharedConfig>
 #include <QFile>
 
 #include <X11/X.h>
 #include <X11/Xatom.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/extensions/XI.h>
 #include <X11/extensions/XInput2.h>
 #if HAVE_XCURSOR
 #include <X11/Xcursor/Xcursor.h>
 #include <X11/extensions/XInput.h>
 #endif
 
 X11Backend *X11Backend::implementation(QObject *parent)
 {
     auto dpy = QX11Info::display();
     Atom testAtom = XInternAtom(dpy, LIBINPUT_PROP_ACCEL, True);
 
     if (testAtom) {
         qCDebug(KCM_MOUSE) << "Using libinput driver on X11.";
         return new X11LibinputBackend(parent);
     }
 
     return nullptr;
 }
 
 X11Backend::X11Backend(QObject *parent)
     : InputBackend(parent)
 {
     m_platformX11 = QX11Info::isPlatformX11();
     if (m_platformX11) {
         m_dpy = QX11Info::display();
     } else {
         // TODO: remove this - not needed anymore with Wayland backend!
         // let's hope we have a compatibility system like Xwayland ready
         m_dpy = XOpenDisplay(nullptr);
     }
 }
 
 X11Backend::~X11Backend()
 {
     if (!m_platformX11 && m_dpy) {
         XCloseDisplay(m_dpy);
     }
 }
 
 QString X11Backend::currentCursorTheme()
 {
     if (!m_dpy) {
         return QString();
     }
 
     QByteArray name = XGetDefault(m_dpy, "Xcursor", "theme");
 #if HAVE_XCURSOR
     if (name.isEmpty()) {
         name = QByteArray(XcursorGetTheme(m_dpy));
     }
 #endif
     return QFile::decodeName(name);
 }
 
 void X11Backend::applyCursorTheme(const QString &theme, int size)
 {
 #if HAVE_XCURSOR
 
     // Apply the KDE cursor theme to ourselves
     if (!m_dpy) {
         return;
     }
     if (!theme.isEmpty()) {
         XcursorSetTheme(m_dpy, QFile::encodeName(theme));
     }
 
     if (size >= 0) {
         XcursorSetDefaultSize(m_dpy, size);
     }
 
     // Load the default cursor from the theme and apply it to the root window.
     Cursor handle = XcursorLibraryLoadCursor(m_dpy, "left_ptr");
     XDefineCursor(m_dpy, DefaultRootWindow(m_dpy), handle);
     XFreeCursor(m_dpy, handle); // Don't leak the cursor
     XFlush(m_dpy);
 #endif
 }
 
 void X11Backend::kcmInit()
 {
     auto config = KSharedConfig::openConfig("kcminputrc", KConfig::NoGlobals);
     KConfigGroup group = config->group(QStringLiteral("Mouse"));
     const QString theme = group.readEntry("cursorTheme", QStringLiteral("breeze_cursors"));
     const int size = group.readEntry("cursorSize", 24);
 
     // Note: If you update this code, update kapplymousetheme as well.
 
     applyCursorTheme(theme, size);
 }