/* * Copyright 2007-2008 Richard J. Moore * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Library General Public License version 2 as * published by the Free Software Foundation * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details * * You should have received a copy of the GNU Library General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include "simplejavascriptapplet.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "appletinterface.h" using namespace Plasma; #include "bind_dataengine.h" Q_DECLARE_METATYPE(QPainter*) Q_DECLARE_METATYPE(QStyleOptionGraphicsItem*) Q_DECLARE_METATYPE(SimpleJavaScriptApplet*) Q_DECLARE_METATYPE(AppletInterface*) Q_DECLARE_METATYPE(Applet*) Q_DECLARE_METATYPE(QGraphicsWidget*) Q_DECLARE_METATYPE(QGraphicsLayout*) Q_DECLARE_METATYPE(KConfigGroup) Q_SCRIPT_DECLARE_QMETAOBJECT(AppletInterface, SimpleJavaScriptApplet*) QScriptValue constructPainterClass(QScriptEngine *engine); QScriptValue constructGraphicsItemClass(QScriptEngine *engine); QScriptValue constructLinearLayoutClass(QScriptEngine *engine); QScriptValue constructTimerClass(QScriptEngine *engine); QScriptValue constructFontClass(QScriptEngine *engine); QScriptValue constructQRectFClass(QScriptEngine *engine); QScriptValue constructQPointClass(QScriptEngine *engine); QScriptValue constructQSizeFClass(QScriptEngine *engine); //typedef VideoWidget::Control Control; Q_DECLARE_FLAGS(Controls, VideoWidget::Control) Q_DECLARE_METATYPE(Controls) class DummyService : public Service { public: ServiceJob *createJob(const QString &operation, QMap ¶meters) { Q_UNUSED(operation) Q_UNUSED(parameters) return 0; } }; /* * Workaround the fact that QtScripts handling of variants seems a bit broken. */ QScriptValue variantToScriptValue(QScriptEngine *engine, QVariant var) { if (var.isNull()) { return engine->nullValue(); } switch(var.type()) { case QVariant::Invalid: return engine->nullValue(); case QVariant::Bool: return QScriptValue(engine, var.toBool()); case QVariant::Date: return engine->newDate(var.toDateTime()); case QVariant::DateTime: return engine->newDate(var.toDateTime()); case QVariant::Double: return QScriptValue(engine, var.toDouble()); case QVariant::Int: case QVariant::LongLong: return QScriptValue(engine, var.toInt()); case QVariant::String: return QScriptValue(engine, var.toString()); case QVariant::Time: { QDateTime t(QDate::currentDate(), var.toTime()); return engine->newDate(t); } case QVariant::UInt: return QScriptValue(engine, var.toUInt()); default: if (var.typeName() == QLatin1String("KUrl")) { return QScriptValue(engine, var.value().prettyUrl()); } else if (var.typeName() == QLatin1String("QColor")) { return QScriptValue(engine, var.value().name()); } else if (var.typeName() == QLatin1String("QUrl")) { return QScriptValue(engine, var.value().toString()); } break; } return qScriptValueFromValue(engine, var); } QScriptValue qScriptValueFromControls(QScriptEngine *engine, const Controls &controls) { return QScriptValue(engine, controls); } void controlsFromScriptValue(const QScriptValue& obj, Controls &controls) { int flagValue = obj.toInteger(); //FIXME: it has to be a less ugly way to do that :) if (flagValue&VideoWidget::Play) { controls |= VideoWidget::Play; } if (flagValue&VideoWidget::Pause) { controls |= VideoWidget::Pause; } if (flagValue&VideoWidget::Stop) { controls |= VideoWidget::Stop; } if (flagValue&VideoWidget::PlayPause) { controls |= VideoWidget::PlayPause; } if (flagValue&VideoWidget::Progress) { controls |= VideoWidget::Progress; } if (flagValue&VideoWidget::Volume) { controls |= VideoWidget::Volume; } if (flagValue&VideoWidget::OpenFile) { controls |= VideoWidget::OpenFile; } } QScriptValue qScriptValueFromData(QScriptEngine *engine, const DataEngine::Data &data) { DataEngine::Data::const_iterator begin = data.begin(); DataEngine::Data::const_iterator end = data.end(); DataEngine::Data::const_iterator it; QScriptValue obj = engine->newObject(); for (it = begin; it != end; ++it) { //kDebug() << "setting" << it.key() << "to" << it.value(); QString prop = it.key(); prop.replace(' ', '_'); obj.setProperty(prop, variantToScriptValue(engine, it.value())); } return obj; } QScriptValue qScriptValueFromKConfigGroup(QScriptEngine *engine, const KConfigGroup &config) { QScriptValue obj = engine->newObject(); if (!config.isValid()) { return obj; } QMap entryMap = config.entryMap(); QMap::const_iterator it = entryMap.constBegin(); QMap::const_iterator begin = it; QMap::const_iterator end = entryMap.constEnd(); //setting the group name obj.setProperty("__name", QScriptValue(engine, config.name())); //setting the key/value pairs for (it = begin; it != end; ++it) { //kDebug() << "setting" << it.key() << "to" << it.value(); QString prop = it.key(); prop.replace(' ', '_'); obj.setProperty(prop, variantToScriptValue(engine, it.value())); } return obj; } void kConfigGroupFromScriptValue(const QScriptValue& obj, KConfigGroup &config) { KConfigSkeleton *skel = new KConfigSkeleton(); config = KConfigGroup(skel->config(), obj.property("__name").toString()); QScriptValueIterator it(obj); while (it.hasNext()) { it.next(); //kDebug() << it.name() << "is" << it.value().toString(); if (it.name() != "__name") { config.writeEntry(it.name(), it.value().toString()); } } } void registerEnums(QScriptEngine *engine, QScriptValue &scriptValue, const QMetaObject &meta) { //manually create enum values. ugh for (int i=0; i < meta.enumeratorCount(); ++i) { QMetaEnum e = meta.enumerator(i); //kDebug() << e.name(); for (int i=0; i < e.keyCount(); ++i) { //kDebug() << e.key(i) << e.value(i); scriptValue.setProperty(e.key(i), QScriptValue(engine, e.value(i))); } } } KSharedPtr SimpleJavaScriptApplet::s_widgetLoader; SimpleJavaScriptApplet::SimpleJavaScriptApplet(QObject *parent, const QVariantList &args) : Plasma::AppletScript(parent) { Q_UNUSED(args) // kDebug() << "Script applet launched, args" << applet()->startupArguments(); m_engine = new QScriptEngine(this); importExtensions(); } SimpleJavaScriptApplet::~SimpleJavaScriptApplet() { if (s_widgetLoader.count() == 1) { s_widgetLoader.clear(); } } void SimpleJavaScriptApplet::reportError() { kDebug() << "Error: " << m_engine->uncaughtException().toString() << " at line " << m_engine->uncaughtExceptionLineNumber() << endl; kDebug() << m_engine->uncaughtExceptionBacktrace(); } void SimpleJavaScriptApplet::configChanged() { QScriptValue fun = m_self.property("configChanged"); if (!fun.isFunction()) { kDebug() << "Script: plasmoid.configChanged is not a function, " << fun.toString(); return; } QScriptContext *ctx = m_engine->pushContext(); ctx->setActivationObject(m_self); //kDebug() << "calling plasmoid"; fun.call(m_self); m_engine->popContext(); if (m_engine->hasUncaughtException()) { reportError(); } } void SimpleJavaScriptApplet::dataUpdated(const QString &name, const DataEngine::Data &data) { QScriptValue fun = m_self.property("dataUpdate"); if (!fun.isFunction()) { kDebug() << "Script: dataUpdate is not a function, " << fun.toString(); return; } QScriptValueList args; args << m_engine->toScriptValue(name) << m_engine->toScriptValue(data); QScriptContext *ctx = m_engine->pushContext(); ctx->setActivationObject(m_self); fun.call(m_self, args); m_engine->popContext(); if (m_engine->hasUncaughtException()) { reportError(); } } void SimpleJavaScriptApplet::executeAction(const QString &name) { callFunction("action_" + name); /* QScriptValue fun = m_self.property("action_" + name); if (fun.isFunction()) { QScriptContext *ctx = m_engine->pushContext(); ctx->setActivationObject(m_self); fun.call(m_self); m_engine->popContext(); if (m_engine->hasUncaughtException()) { reportError(); } }*/ } void SimpleJavaScriptApplet::paintInterface(QPainter *p, const QStyleOptionGraphicsItem *option, const QRect &contentsRect) { Q_UNUSED(option) Q_UNUSED(contentsRect) //kDebug() << "paintInterface() (c++)"; QScriptValue fun = m_self.property("paintInterface"); if (!fun.isFunction()) { //kDebug() << "Script: paintInterface is not a function, " << fun.toString(); AppletScript::paintInterface(p, option, contentsRect); return; } QScriptValueList args; args << m_engine->toScriptValue(p); args << m_engine->toScriptValue(const_cast(option)); args << m_engine->toScriptValue(contentsRect); QScriptContext *ctx = m_engine->pushContext(); ctx->setActivationObject(m_self); fun.call(m_self, args); m_engine->popContext(); if (m_engine->hasUncaughtException()) { reportError(); } } QList SimpleJavaScriptApplet::contextualActions() { return m_interface->contextualActions(); } void SimpleJavaScriptApplet::callFunction(const QString &functionName, const QScriptValueList &args) { QScriptValue fun = m_self.property(functionName); if (fun.isFunction()) { QScriptContext *ctx = m_engine->pushContext(); ctx->setActivationObject(m_self); fun.call(m_self, args); m_engine->popContext(); if (m_engine->hasUncaughtException()) { reportError(); } } } void SimpleJavaScriptApplet::constraintsEvent(Plasma::Constraints constraints) { QString functionName; if (constraints & Plasma::FormFactorConstraint) { callFunction("formFactorChanged"); } if (constraints & Plasma::LocationConstraint) { callFunction("locationChanged"); } if (constraints & Plasma::ContextConstraint) { callFunction("contextChanged"); } } bool SimpleJavaScriptApplet::init() { setupObjects(); kDebug() << "ScriptName:" << applet()->name(); kDebug() << "ScriptCategory:" << applet()->category(); QFile file(mainScript()); if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) { kWarning() << "Unable to load script file"; return false; } QString script = file.readAll(); //kDebug() << "Script says" << script; m_engine->evaluate(script); if (m_engine->hasUncaughtException()) { reportError(); return false; } return true; } void SimpleJavaScriptApplet::importExtensions() { return; // no extension, so do bother wasting cycles /* QStringList extensions; //extensions << "qt.core" << "qt.gui" << "qt.svg" << "qt.xml" << "qt.plasma"; //extensions << "qt.core" << "qt.gui" << "qt.xml"; foreach (const QString &ext, extensions) { kDebug() << "importing " << ext << "..."; QScriptValue ret = m_engine->importExtension(ext); if (ret.isError()) { kDebug() << "failed to import extension" << ext << ":" << ret.toString(); } } kDebug() << "done importing extensions."; */ } void SimpleJavaScriptApplet::setupObjects() { QScriptValue global = m_engine->globalObject(); // Bindings for data engine m_engine->setDefaultPrototype(qMetaTypeId(), m_engine->newQObject(new DataEngine())); m_engine->setDefaultPrototype(qMetaTypeId(), m_engine->newQObject(new DummyService())); m_engine->setDefaultPrototype(qMetaTypeId(), m_engine->newQObject(new ServiceJob(QString(), QString(), QMap()))); global.setProperty("dataEngine", m_engine->newFunction(SimpleJavaScriptApplet::dataEngine)); global.setProperty("service", m_engine->newFunction(SimpleJavaScriptApplet::service)); qScriptRegisterMetaType(m_engine, qScriptValueFromData, 0, QScriptValue()); qScriptRegisterMetaType(m_engine, qScriptValueFromKConfigGroup, kConfigGroupFromScriptValue, QScriptValue()); // Expose applet interface m_interface = new AppletInterface(this); m_self = m_engine->newQObject(m_interface); m_self.setScope(global); global.setProperty("plasmoid", m_self); QScriptValue args = m_engine->newArray(); int i = 0; foreach (QVariant arg, applet()->startupArguments()) { args.setProperty(i, variantToScriptValue(arg)); ++i; } global.setProperty("startupArguments", args); registerEnums(m_engine, global, AppletInterface::staticMetaObject); // Add a global loadui method for ui files QScriptValue fun = m_engine->newFunction(SimpleJavaScriptApplet::loadui); global.setProperty("loadui", fun); fun = m_engine->newFunction(SimpleJavaScriptApplet::print); global.setProperty("print", fun); // Work around bug in 4.3.0 qMetaTypeId(); // Add constructors global.setProperty("PlasmaSvg", m_engine->newFunction(SimpleJavaScriptApplet::newPlasmaSvg)); global.setProperty("PlasmaFrameSvg", m_engine->newFunction(SimpleJavaScriptApplet::newPlasmaFrameSvg)); // Add stuff from 4.4 global.setProperty("QPainter", constructPainterClass(m_engine)); global.setProperty("QGraphicsItem", constructGraphicsItemClass(m_engine)); global.setProperty("QTimer", constructTimerClass(m_engine)); global.setProperty("QFont", constructFontClass(m_engine)); global.setProperty("QRectF", constructQRectFClass(m_engine)); global.setProperty("QSizeF", constructQSizeFClass(m_engine)); global.setProperty("QPoint", constructQPointClass(m_engine)); global.setProperty("LinearLayout", constructLinearLayoutClass(m_engine)); installWidgets(m_engine); } QString SimpleJavaScriptApplet::findDataResource(const QString &filename) { QString path("plasma-script/%1"); return KGlobal::dirs()->findResource("data", path.arg(filename)); } void SimpleJavaScriptApplet::debug(const QString &msg) { kDebug() << msg; } #if 0 QScriptValue SimpleJavaScriptApplet::dataEngine(QScriptContext *context, QScriptEngine *engine) { if (context->argumentCount() != 1) return context->throwError("dataEngine takes one argument"); QString dataEngine = context->argument(0).toString(); Script *self = engine->fromScriptValue(context->thisObject()); DataEngine *data = self->dataEngine(dataEngine); return engine->newQObject(data); } #endif QScriptValue SimpleJavaScriptApplet::dataEngine(QScriptContext *context, QScriptEngine *engine) { if (context->argumentCount() != 1) { return context->throwError(i18n("DataEngine takes one argument")); } QString dataEngine = context->argument(0).toString(); QScriptValue appletValue = engine->globalObject().property("plasmoid"); //kDebug() << "appletValue is " << appletValue.toString(); QObject *appletObject = appletValue.toQObject(); if (!appletObject) { return context->throwError(i18n("Could not extract the AppletObject")); } AppletInterface *interface = qobject_cast(appletObject); if (!interface) { return context->throwError(i18n("Could not extract the Applet")); } DataEngine *data = interface->dataEngine(dataEngine); return engine->newQObject(data); } QScriptValue SimpleJavaScriptApplet::service(QScriptContext *context, QScriptEngine *engine) { if (context->argumentCount() != 2) { return context->throwError(i18n("Service takes two arguments")); } QString dataEngine = context->argument(0).toString(); QScriptValue appletValue = engine->globalObject().property("plasmoid"); //kDebug() << "appletValue is " << appletValue.toString(); QObject *appletObject = appletValue.toQObject(); if (!appletObject) { return context->throwError(i18n("Could not extract the AppletObject")); } AppletInterface *interface = qobject_cast(appletObject); if (!interface) { return context->throwError(i18n("Could not extract the Applet")); } DataEngine *data = interface->dataEngine(dataEngine); QString source = context->argument(1).toString(); Service *service = data->serviceForSource(source); //kDebug( )<< "lets try to get" << source << "from" << dataEngine; return engine->newQObject(service); } QScriptValue SimpleJavaScriptApplet::loadui(QScriptContext *context, QScriptEngine *engine) { if (context->argumentCount() != 1) { return context->throwError(i18n("loadUI takes one argument")); } QString filename = context->argument(0).toString(); QFile f(filename); if (!f.open(QIODevice::ReadOnly)) { return context->throwError(i18n("Unable to open '%1'",filename)); } QUiLoader loader; QWidget *w = loader.load(&f); f.close(); return engine->newQObject(w); } QString SimpleJavaScriptApplet::findSvg(QScriptEngine *engine, const QString &file) { QScriptValue appletValue = engine->globalObject().property("plasmoid"); //kDebug() << "appletValue is " << appletValue.toString(); QObject *appletObject = appletValue.toQObject(); if (!appletObject) { return file; } AppletInterface *interface = qobject_cast(appletObject); if (!interface) { return file; } QString path = interface->package()->filePath("images", file + ".svg"); if (path.isEmpty()) { path = interface->package()->filePath("images", file + ".svgz"); if (path.isEmpty()) { return file; } } return path; } QScriptValue SimpleJavaScriptApplet::newPlasmaSvg(QScriptContext *context, QScriptEngine *engine) { if (context->argumentCount() == 0) { return context->throwError(i18n("Constructor takes at least 1 argument")); } QString filename = context->argument(0).toString(); QObject *parent = 0; if (context->argumentCount() == 2) { parent = qscriptvalue_cast(context->argument(1)); } bool parentedToApplet = false; if (!parent) { QScriptValue appletValue = engine->globalObject().property("plasmoid"); //kDebug() << "appletValue is " << appletValue.toString(); QObject *appletObject = appletValue.toQObject(); if (appletObject) { AppletInterface *interface = qobject_cast(appletObject); if (interface) { parentedToApplet = true; parent = interface->applet(); } } } Svg *svg = new Svg(parent); svg->setImagePath(parentedToApplet ? filename : findSvg(engine, filename)); return engine->newQObject(svg); } QScriptValue SimpleJavaScriptApplet::newPlasmaFrameSvg(QScriptContext *context, QScriptEngine *engine) { if (context->argumentCount() == 0) { return context->throwError(i18n("Constructor takes at least 1 argument")); } QString filename = context->argument(0).toString(); QObject *parent = 0; if (context->argumentCount() == 2) { parent = qscriptvalue_cast(context->argument(1)); } bool parentedToApplet = false; if (!parent) { QScriptValue appletValue = engine->globalObject().property("plasmoid"); //kDebug() << "appletValue is " << appletValue.toString(); QObject *appletObject = appletValue.toQObject(); if (appletObject) { AppletInterface *interface = qobject_cast(appletObject); if (interface) { parentedToApplet = true; parent = interface->applet(); } } } FrameSvg *frameSvg = new FrameSvg(parent); frameSvg->setImagePath(parentedToApplet ? filename : findSvg(engine, filename)); return engine->newQObject(frameSvg); } void SimpleJavaScriptApplet::installWidgets(QScriptEngine *engine) { QScriptValue globalObject = engine->globalObject(); if (!s_widgetLoader) { s_widgetLoader = new UiLoader; } foreach (const QString &widget, s_widgetLoader->availableWidgets()) { QScriptValue fun = engine->newFunction(createWidget); QScriptValue name = engine->toScriptValue(widget); fun.setProperty(QString("functionName"), name, QScriptValue::ReadOnly | QScriptValue::Undeletable | QScriptValue::SkipInEnumeration); fun.setProperty(QString("prototype"), createPrototype(engine, name.toString())); globalObject.setProperty(widget, fun); } } QScriptValue SimpleJavaScriptApplet::createWidget(QScriptContext *context, QScriptEngine *engine) { if (context->argumentCount() > 1) { return context->throwError(i18n("CreateWidget takes one argument")); } QGraphicsWidget *parent = 0; if (context->argumentCount()) { parent = qscriptvalue_cast(context->argument(0)); if (!parent) { return context->throwError(i18n("The parent must be a QGraphicsWidget")); } } QString self = context->callee().property("functionName").toString(); if (!s_widgetLoader) { s_widgetLoader = new UiLoader; } QGraphicsWidget *w = s_widgetLoader->createWidget(self, parent); if (!w) { return QScriptValue(); } QScriptValue fun = engine->newQObject(w); fun.setPrototype(context->callee().property("prototype")); //register enums will be accessed for instance as frame.Sunken for Frame shadow... registerEnums(engine, fun, *w->metaObject()); //FIXME: still don't have a better approach than try to cast for every widget that could have flags.. if (qobject_cast(w)) { qScriptRegisterMetaType(engine, qScriptValueFromControls, controlsFromScriptValue, QScriptValue()); } return fun; } QScriptValue SimpleJavaScriptApplet::notSupported(QScriptContext *context, QScriptEngine *engine) { Q_UNUSED(engine) QString message = context->callee().property("message").toString(); return context->throwError(i18n("This operation was not supported, %1", message) ); } QScriptValue SimpleJavaScriptApplet::print(QScriptContext *context, QScriptEngine *engine) { if (context->argumentCount() != 1) { return context->throwError(i18n("print takes one argument")); } kDebug() << context->argument(0).toString(); return engine->undefinedValue(); } QScriptValue SimpleJavaScriptApplet::createPrototype(QScriptEngine *engine, const QString &name) { Q_UNUSED(name) QScriptValue proto = engine->newObject(); // Hook for adding extra properties/methods return proto; } QScriptValue SimpleJavaScriptApplet::variantToScriptValue(QVariant var) { return ::variantToScriptValue(m_engine, var); } K_EXPORT_PLASMA_APPLETSCRIPTENGINE(qscriptapplet, SimpleJavaScriptApplet) #include "simplejavascriptapplet.moc"