fix some crashes
- check some guards as qobject_cast may fail. - destroyed() is emitted too late, the slot managing it can only access a QObject, Containment members aren't valid anymore
This commit is contained in:
Marco Martin
parent
6b86584dd0
commit
da6df37de5
@ -45,30 +45,28 @@
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#include "widgetexplorer/widgetexplorer.h"
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#include "configview.h"
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static const int s_configSyncDelay = 10000; // 10 seconds
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class ShellCorona::Private {
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public:
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Private(ShellCorona *corona)
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: q(corona),
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desktopWidget(QApplication::desktop()),
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activityController(new KActivities::Controller(q)),
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activityConsumer(new KActivities::Consumer(q)),
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addPanelAction(nullptr),
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addPanelsMenu(nullptr)
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{
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appConfigSyncTimer.setSingleShot(true);
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// constant controlling how long between requesting a configuration sync
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// and one happening should occur. currently 10 seconds
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appConfigSyncTimer.setInterval(10000);
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appConfigSyncTimer.setInterval(s_configSyncDelay);
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connect(&appConfigSyncTimer, &QTimer::timeout, q, &ShellCorona::syncAppConfig);
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waitingPanelsTimer = new QTimer(q);
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waitingPanelsTimer->setSingleShot(true);
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waitingPanelsTimer->setInterval(250);
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connect(waitingPanelsTimer, &QTimer::timeout, q, &ShellCorona::createWaitingPanels);
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waitingPanelsTimer.setSingleShot(true);
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waitingPanelsTimer.setInterval(250);
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connect(&waitingPanelsTimer, &QTimer::timeout, q, &ShellCorona::createWaitingPanels);
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}
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ShellCorona *q;
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QString shell;
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QDesktopWidget * desktopWidget;
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QList<DesktopView *> views;
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KActivities::Controller *activityController;
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KActivities::Consumer *activityConsumer;
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@ -78,10 +76,10 @@ public:
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QList<Plasma::Containment *> waitingPanels;
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QHash<QString, Activity *> activities;
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QHash<QString, QHash<int, Plasma::Containment *> > desktopContainments;
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QTimer *waitingPanelsTimer;
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QAction *addPanelAction;
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QMenu *addPanelsMenu;
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QTimer waitingPanelsTimer;
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QTimer appConfigSyncTimer;
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};
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@ -97,18 +95,19 @@ ShellCorona::ShellCorona(QObject *parent)
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{
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d->desktopDefaultsConfig = KConfigGroup(KSharedConfig::openConfig(package().filePath("defaults")), "Desktop");
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connect(&d->appConfigSyncTimer, &QTimer::timeout,
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this, &ShellCorona::syncAppConfig);
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connect(this, &ShellCorona::containmentAdded,
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this, &ShellCorona::handleContainmentAdded);
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d->scriptEngine = new WorkspaceScripting::DesktopScriptEngine(this, true);
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connect(d->scriptEngine, &WorkspaceScripting::ScriptEngine::printError,
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this, &ShellCorona::printScriptError);
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[=](const QString &msg) {
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qWarning() << msg;
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});
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connect(d->scriptEngine, &WorkspaceScripting::ScriptEngine::print,
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this, &ShellCorona::printScriptMessage);
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[=](const QString &msg) {
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qDebug() << msg;
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});
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QAction *dashboardAction = actions()->add<QAction>("show dashboard");
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QObject::connect(dashboardAction, &QAction::triggered,
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@ -148,7 +147,9 @@ ShellCorona::~ShellCorona()
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void ShellCorona::setShell(const QString &shell)
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{
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if (d->shell == shell) return;
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if (d->shell == shell) {
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return;
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}
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unload();
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@ -171,8 +172,11 @@ QString ShellCorona::shell() const
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void ShellCorona::load()
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{
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if (d->shell.isEmpty() || d->activityConsumer->serviceStatus() == KActivities::Consumer::Unknown)
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if (d->shell.isEmpty() ||
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d->activityConsumer->serviceStatus() == KActivities::Consumer::Unknown) {
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return;
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}
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disconnect(d->activityConsumer, SIGNAL(serviceStatusChanged(Consumer::ServiceStatus)), this, SLOT(load()));
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loadLayout("plasma-" + d->shell + "-appletsrc");
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@ -209,13 +213,16 @@ void ShellCorona::load()
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this, &ShellCorona::screenAdded);
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if (!d->waitingPanels.isEmpty()) {
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d->waitingPanelsTimer->start();
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d->waitingPanelsTimer.start();
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}
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}
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void ShellCorona::unload()
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{
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if (d->shell.isEmpty()) return;
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if (d->shell.isEmpty()) {
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return;
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}
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qDeleteAll(containments());
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}
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@ -231,9 +238,7 @@ void ShellCorona::requestApplicationConfigSync()
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void ShellCorona::loadDefaultLayout()
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{
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QString script = package().filePath("defaultlayout");
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qDebug() << "This is the default layout we are using:";
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const QString script = package().filePath("defaultlayout");
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QFile file(script);
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if (file.open(QIODevice::ReadOnly | QIODevice::Text) ) {
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QString code = file.readAll();
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@ -256,22 +261,22 @@ KActivities::Controller *ShellCorona::activityController()
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int ShellCorona::numScreens() const
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{
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return d->desktopWidget->screenCount();
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return QApplication::desktop()->screenCount();
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}
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QRect ShellCorona::screenGeometry(int id) const
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{
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return d->desktopWidget->screenGeometry(id);
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return QApplication::desktop()->screenGeometry(id);
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}
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QRegion ShellCorona::availableScreenRegion(int id) const
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{
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return d->desktopWidget->availableGeometry(id);
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return QApplication::desktop()->availableGeometry(id);
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}
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QRect ShellCorona::availableScreenRect(int id) const
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{
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return d->desktopWidget->availableGeometry(id);
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return QApplication::desktop()->availableGeometry(id);
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}
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PanelView *ShellCorona::panelView(Plasma::Containment *containment) const
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@ -332,9 +337,9 @@ void ShellCorona::screenRemoved(QObject *screen)
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//desktop containments
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for (auto i = d->views.begin(); i != d->views.end(); i++) {
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if ((*i)->screen() == screen) {
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(*i)->deleteLater();
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d->views.erase(i);
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(*i)->containment()->reactToScreenChange();
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(*i)->deleteLater();
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break;
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}
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}
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@ -367,7 +372,7 @@ void ShellCorona::handleContainmentAdded(Plasma::Containment* c)
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void ShellCorona::toggleWidgetExplorer()
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{
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QPoint cursorPos = QCursor::pos();
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const QPoint cursorPos = QCursor::pos();
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foreach (DesktopView *view, d->views) {
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if (view->screen()->geometry().contains(cursorPos)) {
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//The view QML has to provide something to display the activity explorer
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@ -379,7 +384,7 @@ void ShellCorona::toggleWidgetExplorer()
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void ShellCorona::toggleActivityManager()
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{
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QPoint cursorPos = QCursor::pos();
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const QPoint cursorPos = QCursor::pos();
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foreach (DesktopView *view, d->views) {
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if (view->screen()->geometry().contains(cursorPos)) {
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//The view QML has to provide something to display the activity explorer
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@ -404,6 +409,7 @@ void ShellCorona::setDashboardShown(bool show)
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if (dashboardAction) {
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dashboardAction->setText(show ? i18n("Hide Dashboard") : i18n("Show Dashboard"));
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}
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foreach (DesktopView *view, d->views) {
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view->setDashboardShown(show);
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}
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@ -539,12 +545,14 @@ void ShellCorona::addPanel(const QString &plugin)
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foreach (const Plasma::Containment *cont, d->panelViews.keys()) {
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availableLocations.removeAll(cont->location());
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}
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Plasma::Types::Location loc;
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if (availableLocations.isEmpty()) {
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loc = Plasma::Types::TopEdge;
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} else {
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loc = availableLocations.first();
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}
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panel->setLocation(loc);
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switch (loc) {
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case Plasma::Types::LeftEdge:
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@ -557,62 +565,59 @@ void ShellCorona::addPanel(const QString &plugin)
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}
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d->waitingPanels << panel;
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d->waitingPanelsTimer->start();
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}
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void ShellCorona::printScriptError(const QString &error)
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{
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qWarning() << error;
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}
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void ShellCorona::printScriptMessage(const QString &message)
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{
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qDebug() << message;
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d->waitingPanelsTimer.start();
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}
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int ShellCorona::screenForContainment(const Plasma::Containment *containment) const
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{
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QScreen* s = nullptr;
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QScreen *screen = nullptr;
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for (int i = 0; i < d->views.size(); i++) {
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if (d->views[i]->containment() == containment) {
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s = d->views[i]->screen();
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screen = d->views[i]->screen();
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}
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}
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if(!s) {
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if (!screen) {
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PanelView *view = d->panelViews[containment];
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if (view) {
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s = view->screen();
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screen = view->screen();
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}
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}
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return s? qApp->screens().indexOf(s) : -1;
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return screen ? qApp->screens().indexOf(screen) : -1;
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}
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void ShellCorona::activityOpened()
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{
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Activity *activity = qobject_cast<Activity *>(sender());
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if (activity) {
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QList<Plasma::Containment*> cs = importLayout(activity->config());
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for (Plasma::Containment *containment : cs) {
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insertContainment(activity->name(), containment->lastScreen(), containment);
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}
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}
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}
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void ShellCorona::activityClosed()
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{
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Activity *activity = qobject_cast<Activity *>(sender());
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if (activity) {
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KConfigGroup cg = activity->config();
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exportLayout(cg, d->desktopContainments.value(activity->name()).values());
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}
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}
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void ShellCorona::activityRemoved()
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{
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//when an activity is removed delete all associated desktop containments
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Activity *activity = qobject_cast<Activity *>(sender());
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if (activity) {
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QHash< int, Plasma::Containment* > containmentHash = d->desktopContainments.take(activity->name());
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for (auto a : containmentHash) {
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a->destroy();
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}
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}
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}
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void ShellCorona::insertContainment(const QString &activity, int screenNum, Plasma::Containment* containment)
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{
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@ -620,8 +625,20 @@ void ShellCorona::insertContainment(const QString &activity, int screenNum, Plas
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//when a containment gets deleted update our map of containments
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connect(containment, &QObject::destroyed, [=](QObject *obj) {
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auto containment = qobject_cast<Plasma::Containment*>(obj);
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d->desktopContainments[containment->activity()].remove(containment->lastScreen());
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// when QObject::destroyed arrives, ~Plasma::Containment has run,
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// members of Containment are not accessible anymore,
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// so keep ugly bookeeping by hand
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auto containment = static_cast<Plasma::Containment*>(obj);
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for (auto a : d->desktopContainments) {
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QMutableHashIterator<int, Plasma::Containment *> it(a);
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while (it.hasNext()) {
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it.next();
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if (it.value() == containment) {
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it.remove();
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return;
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}
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}
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}
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});
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}
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@ -84,9 +84,6 @@ protected Q_SLOTS:
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void screenAdded(QScreen *screen);
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void screenRemoved(QObject *screen);
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void printScriptError(const QString &error);
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void printScriptMessage(const QString &message);
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/**
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* Loads the layout and performs the needed checks
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*/
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