+
+void DocumentValidator::updateEffects()
+{
+ // WARNING: order by findDirs will determine which js file to use (in case multiple scripts for the same filter exist)
+ QMap <QString, KUrl> paths;
+#if QT_VERSION >= 0x040700
+ QMap <QString, QScriptProgram> scripts;
+#else
+ QMap <QString, QString> scripts;
+#endif
+ QStringList directories = KGlobal::dirs()->findDirs("appdata", "effects/update");
+ foreach (const QString &directoryName, directories) {
+ QDir directory(directoryName);
+ QStringList fileList = directory.entryList(QStringList() << "*.js", QDir::Files);
+ foreach (const QString &fileName, fileList) {
+ QString identifier = fileName;
+ // remove extension (".js")
+ identifier.chop(3);
+ paths.insert(identifier, KUrl(directoryName + fileName));
+ }
+ }
+
+ QDomNodeList effects = m_doc.elementsByTagName("filter");
+ int max = effects.count();
+ QStringList safeEffects;
+ for(int i = 0; i < max; ++i) {
+ QDomElement effect = effects.at(i).toElement();
+ QString effectId = EffectsList::property(effect, "kdenlive_id");
+ if (safeEffects.contains(effectId)) {
+ // Do not check the same effect twice if it is at the correct version
+ // (assume we don't have different versions of the same effect in a project file)
+ continue;
+ }
+ QString effectTag = EffectsList::property(effect, "tag");
+ QString effectVersionStr = EffectsList::property(effect, "version");
+ double effectVersion = effectVersionStr.isNull() ? -1 : effectVersionStr.toDouble();
+
+ QDomElement effectDescr = MainWindow::customEffects.getEffectByTag(QString(), effectId);
+ if (effectDescr.isNull()) {
+ effectDescr = MainWindow::videoEffects.getEffectByTag(effectTag, effectId);
+ }
+ if (effectDescr.isNull()) {
+ effectDescr = MainWindow::audioEffects.getEffectByTag(effectTag, effectId);
+ }
+ if (!effectDescr.isNull()) {
+ double serviceVersion = -1;
+ QDomElement serviceVersionElem = effectDescr.firstChildElement("version");
+ if (!serviceVersionElem.isNull()) {
+ serviceVersion = serviceVersionElem.text().toDouble();
+ }
+ if (serviceVersion != effectVersion && paths.contains(effectId)) {
+ if (!scripts.contains(effectId)) {
+ QFile scriptFile(paths.value(effectId).path());
+ if (!scriptFile.open(QIODevice::ReadOnly)) {
+ continue;
+ }
+#if QT_VERSION >= 0x040700
+ QScriptProgram scriptProgram(scriptFile.readAll());
+#else
+ QString scriptProgram = scriptFile.readAll();
+#endif
+ scriptFile.close();
+ scripts.insert(effectId, scriptProgram);
+ }
+
+ QScriptEngine scriptEngine;
+ scriptEngine.importExtension("qt.core");
+ scriptEngine.importExtension("qt.xml");
+ scriptEngine.evaluate(scripts.value(effectId));
+ QScriptValue updateRules = scriptEngine.globalObject().property("update");
+ if (!updateRules.isValid())
+ continue;
+ if (updateRules.isFunction()) {
+ QDomDocument scriptDoc;
+ scriptDoc.appendChild(scriptDoc.importNode(effect, true));
+
+ QString effectString = updateRules.call(QScriptValue(), QScriptValueList() << serviceVersion << effectVersion << scriptDoc.toString()).toString();
+
+ if (!effectString.isEmpty() && !scriptEngine.hasUncaughtException()) {
+ scriptDoc.setContent(effectString);
+ QDomNode updatedEffect = effect.ownerDocument().importNode(scriptDoc.documentElement(), true);
+ effect.parentNode().replaceChild(updatedEffect, effect);
+ m_modified = true;
+ }
+ } else {
+ m_modified = updateEffectParameters(effect.childNodes(), &updateRules, serviceVersion, effectVersion);
+ }
+
+ // set version number since MLT won't change it (only initially set it)
+ QDomElement versionElem = effect.firstChildElement("version");
+ if (EffectsList::property(effect, "version").isNull()) {
+ versionElem = effect.ownerDocument().createTextNode(QLocale().toString(serviceVersion)).toElement();
+ versionElem.setTagName("property");
+ versionElem.setAttribute("name", "version");
+ effect.appendChild(versionElem);
+ } else {
+ EffectsList::setProperty(effect, "version", QLocale().toString(serviceVersion));
+ }
+ }
+ else safeEffects.append(effectId);
+ }
+ }
+}
+
+bool DocumentValidator::updateEffectParameters(const QDomNodeList ¶meters, const QScriptValue* updateRules, const double serviceVersion, const double effectVersion)
+{
+ bool updated = false;
+ bool isDowngrade = serviceVersion < effectVersion;
+ for (int i = 0; i < parameters.count(); ++i) {
+ QDomElement parameter = parameters.at(i).toElement();
+ QScriptValue rules = updateRules->property(parameter.attribute("name"));
+ if (rules.isValid() && rules.isArray()) {
+ int rulesCount = rules.property("length").toInt32();
+ if (isDowngrade) {
+ // start with the highest version and downgrade step by step
+ for (int j = rulesCount - 1; j >= 0; --j) {
+ double version = rules.property(j).property(0).toNumber();
+ if (version <= effectVersion && version > serviceVersion) {
+ parameter.firstChild().setNodeValue(rules.property(j).property(1).call(QScriptValue(), QScriptValueList() << parameter.text() << isDowngrade).toString());
+ updated = true;
+ }
+ }
+ } else {
+ for (int j = 0; j < rulesCount; ++j) {
+ double version = rules.property(j).property(0).toNumber();
+ if (version > effectVersion && version <= serviceVersion) {
+ parameter.firstChild().setNodeValue(rules.property(j).property(1).call(QScriptValue(), QScriptValueList() << parameter.text() << isDowngrade).toString());
+ updated = true;
+ }
+ }
+ }
+ }
+ }
+ return updated;
+}