160 lines
4.2 KiB
C++
160 lines
4.2 KiB
C++
/*
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* Copyright 2008 Richard J. Moore <rich@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License version 2 as
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* published by the Free Software Foundation
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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 Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "javascriptrunner.h"
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#include <QFile>
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#include <Plasma/AbstractRunner>
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#include <Plasma/Package>
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#include <Plasma/QueryMatch>
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#include "authorization.h"
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#include "scriptenv.h"
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typedef const Plasma::RunnerContext* ConstRunnerContextStar;
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typedef const Plasma::QueryMatch* ConstSearchMatchStar;
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Q_DECLARE_METATYPE(Plasma::QueryMatch*)
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Q_DECLARE_METATYPE(Plasma::RunnerContext*)
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Q_DECLARE_METATYPE(ConstRunnerContextStar)
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Q_DECLARE_METATYPE(ConstSearchMatchStar)
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JavaScriptRunner::JavaScriptRunner(QObject *parent, const QVariantList &args)
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: RunnerScript(parent)
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{
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Q_UNUSED(args);
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m_engine = new QScriptEngine(this);
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m_env = new ScriptEnv(this, m_engine);
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connect(m_engine, SIGNAL(reportError(ScriptEnv*,bool)), this, SLOT(reportError(ScriptEnv*,bool)));
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}
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JavaScriptRunner::~JavaScriptRunner()
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{
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}
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Plasma::AbstractRunner* JavaScriptRunner::runner() const
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{
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return RunnerScript::runner();
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}
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bool JavaScriptRunner::init()
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{
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setupObjects();
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Authorization auth;
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if (!m_env->importExtensions(description(), m_self, auth)) {
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return false;
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}
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QFile file(mainScript());
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if (!file.open(QIODevice::ReadOnly | QIODevice::Text) ) {
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kWarning() << "Unable to load script file";
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return false;
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}
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QString script = file.readAll();
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kDebug() << "Script says" << script;
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m_engine->evaluate(script);
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if (m_engine->hasUncaughtException()) {
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reportError(m_env, true);
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return false;
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}
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return m_env->include(mainScript());
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}
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void JavaScriptRunner::match(Plasma::RunnerContext &search)
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{
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QScriptValue fun = m_self.property("match");
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if (!fun.isFunction()) {
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kDebug() << "Script: match is not a function, " << fun.toString();
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return;
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}
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QScriptValueList args;
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args << m_engine->toScriptValue(&search);
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QScriptContext *ctx = m_engine->pushContext();
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ctx->setActivationObject(m_self);
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fun.call(m_self, args);
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m_engine->popContext();
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if (m_engine->hasUncaughtException()) {
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reportError(m_env, false);
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m_engine->clearExceptions();
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}
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}
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void JavaScriptRunner::exec(const Plasma::RunnerContext *search, const Plasma::QueryMatch *action)
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{
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QScriptValue fun = m_self.property("exec");
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if (!fun.isFunction()) {
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kDebug() << "Script: exec is not a function, " << fun.toString();
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return;
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}
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QScriptValueList args;
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args << m_engine->toScriptValue(search);
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args << m_engine->toScriptValue(action);
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QScriptContext *ctx = m_engine->pushContext();
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ctx->setActivationObject(m_self);
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fun.call(m_self, args);
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m_engine->popContext();
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if (m_engine->hasUncaughtException()) {
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reportError(m_env, false);
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m_engine->clearExceptions();
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}
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}
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void JavaScriptRunner::setupObjects()
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{
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QScriptValue global = m_engine->globalObject();
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// Expose the runner
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m_self = m_engine->newQObject(this);
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m_self.setScope(global);
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global.setProperty("runner", m_self);
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}
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void JavaScriptRunner::reportError(ScriptEnv *env, bool fatal)
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{
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Q_UNUSED(fatal)
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kDebug() << "Error: " << env->engine()->uncaughtException().toString()
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<< " at line " << env->engine()->uncaughtExceptionLineNumber() << endl;
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kDebug() << env->engine()->uncaughtExceptionBacktrace();
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}
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bool JavaScriptRunner::include(const QString &script)
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{
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const QString path = package()->filePath("scripts", script);
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if (path.isEmpty()) {
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return false;
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}
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return m_env->include(path);
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}
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#include "javascriptrunner.moc"
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