File indexing completed on 2024-04-14 03:57:08

 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 1997 Matthias Kalle Dalheimer <kalle@kde.org>
     SPDX-FileCopyrightText: 1998, 1999, 2000 KDE Team
     SPDX-FileCopyrightText: 2008 Nick Shaforostoff <shaforostoff@kde.ru>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
  */
 
 #include "kcheckaccelerators.h"
 
 #include <QAction>
 #include <QApplication>
 #include <QChar>
 #include <QCheckBox>
 #include <QClipboard>
 #include <QComboBox>
 #include <QDebug>
 #include <QDialog>
 #include <QDialogButtonBox>
 #include <QFile>
 #include <QGroupBox>
 #include <QLabel>
 #include <QMenu>
 #include <QMouseEvent>
 #include <QPushButton>
 #include <QShortcutEvent>
 #include <QTabBar>
 #include <QTextBrowser>
 #include <QVBoxLayout>
 
 #include <KAcceleratorManager>
 #include <KConfig>
 #include <KConfigGroup>
 #include <KLocalizedString>
 #include <KSharedConfig>
 
 class KCheckAcceleratorsInitializer : public QObject
 {
     Q_OBJECT
 public:
     explicit KCheckAcceleratorsInitializer(QObject *parent = nullptr)
         : QObject(parent)
     {
     }
 
 public Q_SLOTS:
     void initiateIfNeeded()
     {
         KConfigGroup cg(KSharedConfig::openConfig(), QStringLiteral("Development"));
         QString sKey = cg.readEntry("CheckAccelerators").trimmed();
         int key = 0;
         if (!sKey.isEmpty()) {
             QList<QKeySequence> cuts = QKeySequence::listFromString(sKey);
             if (!cuts.isEmpty()) {
                 key = cuts.first()[0].toCombined();
             }
         }
         const bool autoCheck = cg.readEntry("AutoCheckAccelerators", true);
         if (key == 0 && !autoCheck) {
             deleteLater();
             return;
         }
 
         new KCheckAccelerators(qApp, key, autoCheck);
         deleteLater();
     }
 };
 
 static void startupFunc()
 {
     // Static because in some cases this is called multiple times
     // but if an application had any of the bad cases we always want
     // to skip the check
     static bool doCheckAccelerators = true;
 
     if (!doCheckAccelerators) {
         return;
     }
 
     QCoreApplication *app = QCoreApplication::instance();
     if (!app) {
         // We're being loaded by something that doesn't have a QCoreApplication
         // this would probably crash at some later point since we do use qApp->
         // quite a lot, so skip the magic
         doCheckAccelerators = false;
         return;
     }
 
     if (!QCoreApplication::startingUp()) {
         // If the app has already started, this means we're not being run as part of
         // qt_call_pre_routines, which most probably means that we're being run as
         // part of KXmlGui being loaded as part of some plugin of the app, so don't
         // do any magic
         doCheckAccelerators = false;
         return;
     }
 
     if (!QCoreApplication::eventDispatcher()) {
         // We are called with event dispatcher being null when KXmlGui is being
         // loaded through plasma-integration instead of being linked to the app
         // (i.e. QtCreator vs Okular) For apps that don't link directly to KXmlGui
         // do not do the accelerator magic
         doCheckAccelerators = false;
         return;
     }
 
     KCheckAcceleratorsInitializer *initializer = new KCheckAcceleratorsInitializer(app);
     // Call initiateIfNeeded once we're in the event loop
     // This is to prevent using KSharedConfig before main() can set the app name
     QMetaObject::invokeMethod(initializer, "initiateIfNeeded", Qt::QueuedConnection);
 }
 
 Q_COREAPP_STARTUP_FUNCTION(startupFunc)
 
 KCheckAccelerators::KCheckAccelerators(QObject *parent, int key_, bool autoCheck_)
     : QObject(parent)
     , key(key_)
     , block(false)
     , autoCheck(autoCheck_)
     , drklash(nullptr)
 {
     setObjectName(QStringLiteral("kapp_accel_filter"));
 
     KConfigGroup cg(KSharedConfig::openConfig(), QStringLiteral("Development"));
     alwaysShow = cg.readEntry("AlwaysShowCheckAccelerators", false);
 
     parent->installEventFilter(this);
     connect(&autoCheckTimer, &QTimer::timeout, this, &KCheckAccelerators::autoCheckSlot);
 }
 
 bool KCheckAccelerators::eventFilter(QObject * /*obj*/, QEvent *e)
 {
     if (block) {
         return false;
     }
 
     switch (e->type()) { // just simplify debuggin
     case QEvent::ShortcutOverride:
         if (key && (static_cast<QKeyEvent *>(e)->key() == key)) {
             block = true;
             checkAccelerators(false);
             block = false;
             e->accept();
             return true;
         }
         break;
     case QEvent::ChildAdded:
     case QEvent::ChildRemoved:
         // Only care about widgets; this also avoids starting the timer in other
         // threads
         if (!static_cast<QChildEvent *>(e)->child()->isWidgetType()) {
             break;
         }
         Q_FALLTHROUGH();
     // fall-through
     case QEvent::Resize:
     case QEvent::LayoutRequest:
     case QEvent::WindowActivate:
     case QEvent::WindowDeactivate:
         if (autoCheck) {
             autoCheckTimer.setSingleShot(true);
             autoCheckTimer.start(20); // 20 ms
         }
         return false;
     case QEvent::Timer:
     case QEvent::MouseMove:
     case QEvent::Paint:
         return false;
     default:
         // qCDebug(DEBUG_KXMLGUI) << "KCheckAccelerators::eventFilter " << e->type()
         // << " " << autoCheck;
         break;
     }
     return false;
 }
 
 void KCheckAccelerators::autoCheckSlot()
 {
     if (block) {
         autoCheckTimer.setSingleShot(true);
         autoCheckTimer.start(20);
         return;
     }
     block = true;
     checkAccelerators(!alwaysShow);
     block = false;
 }
 
 void KCheckAccelerators::createDialog(QWidget *actWin, bool automatic)
 {
     if (drklash) {
         return;
     }
 
     drklash = new QDialog(actWin);
     drklash->setAttribute(Qt::WA_DeleteOnClose);
     drklash->setObjectName(QStringLiteral("kapp_accel_check_dlg"));
     drklash->setWindowTitle(i18nc("@title:window", "Dr. Klash' Accelerator Diagnosis"));
     drklash->resize(500, 460);
     QVBoxLayout *layout = new QVBoxLayout(drklash);
     drklash_view = new QTextBrowser(drklash);
     layout->addWidget(drklash_view);
     QCheckBox *disableAutoCheck = nullptr;
     if (automatic) {
         disableAutoCheck = new QCheckBox(i18nc("@option:check", "Disable automatic checking"), drklash);
         connect(disableAutoCheck, &QCheckBox::toggled, this, &KCheckAccelerators::slotDisableCheck);
         layout->addWidget(disableAutoCheck);
     }
     QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Close, drklash);
     layout->addWidget(buttonBox);
     connect(buttonBox, &QDialogButtonBox::rejected, drklash, &QDialog::close);
     if (disableAutoCheck) {
         disableAutoCheck->setFocus();
     } else {
         drklash_view->setFocus();
     }
 }
 
 void KCheckAccelerators::slotDisableCheck(bool on)
 {
     autoCheck = !on;
     if (!on) {
         autoCheckSlot();
     }
 }
 
 void KCheckAccelerators::checkAccelerators(bool automatic)
 {
     QWidget *actWin = qApp->activeWindow();
     if (!actWin) {
         return;
     }
 
     KAcceleratorManager::manage(actWin);
     QString a;
     QString c;
     QString r;
     KAcceleratorManager::last_manage(a, c, r);
 
     if (automatic) { // for now we only show dialogs on F12 checks
         return;
     }
 
     if (c.isEmpty() && r.isEmpty() && (automatic || a.isEmpty())) {
         return;
     }
 
     QString s;
 
     if (!c.isEmpty()) {
         s += i18n("<h2>Accelerators changed</h2>")
             + QLatin1String(
                   "<table "
                   "border><tr><th><b>%1</b></th><th><b>%2</b></th></tr>%3</table>")
                   .arg(i18n("Old Text"), i18n("New Text"), c);
     }
 
     if (!r.isEmpty()) {
         s += i18n("<h2>Accelerators removed</h2>") + QLatin1String("<table border><tr><th><b>%1</b></th></tr>%2</table>").arg(i18n("Old Text"), r);
     }
 
     if (!a.isEmpty()) {
         s += i18n("<h2>Accelerators added (just for your info)</h2>")
             + QLatin1String("<table border><tr><th><b>%1</b></th></tr>%2</table>").arg(i18n("New Text"), a);
     }
 
     createDialog(actWin, automatic);
     drklash_view->setHtml(s);
     drklash->show();
     drklash->raise();
 
     // dlg will be destroyed before returning
 }
 
 #include "kcheckaccelerators.moc"
 #include "moc_kcheckaccelerators.cpp"