151 lines
4.2 KiB
C++
151 lines
4.2 KiB
C++
/*
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* Copyright 2010 Aaron Seigo <aseigo@kde.org>
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* Copyright 2010 Adenilson Cavalcanti <cavalcantii@gmail.com>
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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 as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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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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/* TODO:
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*
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* - cleanup debug messages
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*/
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#include "animationscriptengine_p.h"
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#include <QFile>
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#include <QParallelAnimationGroup>
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#include <QSequentialAnimationGroup>
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#include <QTextStream>
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#include <kdebug.h>
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#include "bindings/animationgroup_p.h"
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namespace Plasma
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{
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namespace AnimationScriptEngine
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{
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QScriptEngine* inst = 0;
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QHash<QString, QScriptValue> s_animFuncs;
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QScriptValue animation(const QString &anim)
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{
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return s_animFuncs.value(anim);
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}
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bool isAnimationRegistered(const QString &anim)
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{
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return s_animFuncs.contains(anim);
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}
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void clearAnimations()
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{
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s_animFuncs.clear();
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delete inst;
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inst = 0;
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}
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QScriptValue registerAnimation(QScriptContext *context, QScriptEngine *engine)
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{
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if (context->argumentCount() > 1) {
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const QString name = context->argument(0).toString();
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if (!s_animFuncs.contains(name)) {
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const QScriptValue func = context->argument(1);
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if (func.isFunction()) {
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s_animFuncs.insert(name, func);
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}
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}
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}
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return engine->undefinedValue();
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}
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QObject *extractParent(QScriptContext *context, QScriptEngine *engine)
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{
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Q_UNUSED(engine)
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return context->thisObject().property("__plasma_javascriptanimation").toQObject();
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}
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QScriptValue animationGroup(QScriptContext *context, QScriptEngine *engine)
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{
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QObject *parent = extractParent(context, engine);
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if (!parent) {
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return engine->undefinedValue();
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}
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QSequentialAnimationGroup *group = new SequentialAnimationGroup(parent);
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return engine->newQObject(group);
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}
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QScriptValue parallelAnimationGroup(QScriptContext *context, QScriptEngine *engine)
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{
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QObject *parent = extractParent(context, engine);
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if (!parent) {
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return engine->undefinedValue();
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}
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ParallelAnimationGroup *group = new ParallelAnimationGroup(parent);
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return engine->newQObject(group);
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}
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QScriptEngine *globalEngine()
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{
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if (!inst) {
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inst = new QScriptEngine;
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QScriptValue global = inst->globalObject();
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global.setProperty("registerAnimation", inst->newFunction(AnimationScriptEngine::registerAnimation));
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global.setProperty("AnimationGroup", inst->newFunction(AnimationScriptEngine::animationGroup));
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global.setProperty("ParallelAnimationGroup", inst->newFunction(AnimationScriptEngine::parallelAnimationGroup));
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qDebug() << "........... first js animation, creating the engine!";
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}
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return inst;
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}
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bool loadScript(const QString &path)
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{
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QFile file(path);
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if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
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kError() << "failed to open script file" << path;
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return false;
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}
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QTextStream buffer(&file);
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QString tmp(buffer.readAll());
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QScriptEngine *engine = AnimationScriptEngine::globalEngine();
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QScriptValue def(engine->evaluate(tmp, path));
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if (engine->hasUncaughtException()) {
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const QScriptValue error = engine->uncaughtException();
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QString file = error.property("fileName").toString();
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const QString failureMsg = QString("Error in %1 on line %2.\n%3")
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.arg(file)
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.arg(error.property("lineNumber").toString())
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.arg(error.toString());
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kError() << failureMsg;
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return false;
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}
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return true;
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}
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} // namespace AnimationEngine
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} // namespace Plasma
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