--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/designer/src/lib/uilib/formscriptrunner.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,208 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Designer of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "formscriptrunner_p.h"
+#include "formbuilderextra_p.h"
+#include "ui4_p.h"
+
+#include <QtScript/QScriptEngine>
+#include <QtGui/QWidget>
+#include <QtCore/QDebug>
+#include <QtCore/QCoreApplication>
+
+QT_BEGIN_NAMESPACE
+
+namespace {
+ enum { debugFormScriptRunner = 0 };
+}
+
+#ifdef QFORMINTERNAL_NAMESPACE
+namespace QFormInternal {
+#endif
+
+class QFormScriptRunner::QFormScriptRunnerPrivate {
+public:
+ QFormScriptRunnerPrivate() : m_options(DisableScripts) {}
+ void clearErrors() { m_errors.clear(); }
+
+ bool run(const QString &script, QWidget *widget, const WidgetList &children, QString *errorMessage);
+
+ static void initializeEngine(QWidget *w, const WidgetList &children, QScriptEngine &scriptEngine);
+ static QString engineError(QScriptEngine &scriptEngine);
+
+ Options options() const { return m_options; }
+ void setOptions(Options options) { m_options = options; }
+
+ Errors errors() const { return m_errors; }
+private:
+ QScriptEngine m_scriptEngine;
+ Options m_options;
+ Errors m_errors;
+};
+
+bool QFormScriptRunner::QFormScriptRunnerPrivate::run(const QString &script, QWidget *widget, const WidgetList &children, QString *errorMessage) {
+ bool rc = false;
+ initializeEngine(widget, children, m_scriptEngine);
+
+ do {
+ m_scriptEngine.evaluate(script);
+ if (m_scriptEngine.hasUncaughtException ()) {
+ *errorMessage = QCoreApplication::tr("Exception at line %1: %2").arg(m_scriptEngine.uncaughtExceptionLineNumber()).arg(engineError(m_scriptEngine));
+ break;
+ }
+ rc = true;
+ } while (false);
+ m_scriptEngine.popContext();
+
+ if (!rc) {
+ Error error;
+ error.objectName = widget->objectName();
+ error.script = script;
+ error.errorMessage = *errorMessage;
+ m_errors.push_back(error);
+ }
+ return rc;
+}
+
+void QFormScriptRunner::QFormScriptRunnerPrivate::initializeEngine(QWidget *w, const WidgetList &children, QScriptEngine &scriptEngine) {
+ // Populate the script variables. This pushes a context which must be popped.
+ QScriptContext *ctx = scriptEngine.pushContext();
+ QScriptValue widgetObject = scriptEngine.newQObject(w);
+ QScriptValue childrenArray = scriptEngine.newArray (children.size());
+
+ for(int i = 0; i < children.size(); i++) {
+ childrenArray.setProperty(i, scriptEngine.newQObject(children[i]));
+ }
+
+ const QFormBuilderStrings &strings = QFormBuilderStrings::instance();
+ ctx ->activationObject().setProperty(strings.scriptWidgetVariable, widgetObject);
+ ctx ->activationObject().setProperty(strings.scriptChildWidgetsVariable, childrenArray);
+}
+
+QString QFormScriptRunner::QFormScriptRunnerPrivate::engineError(QScriptEngine &scriptEngine) {
+ QScriptValue error = scriptEngine.evaluate(QLatin1String("Error"));
+ if (error.isValid())
+ return error.toString();
+ return QCoreApplication::tr("Unknown error");
+}
+// -- QFormScriptRunner
+
+QFormScriptRunner::QFormScriptRunner() : m_impl(new QFormScriptRunnerPrivate)
+{
+}
+
+QFormScriptRunner::~QFormScriptRunner()
+{
+ delete m_impl;
+}
+
+bool QFormScriptRunner::run(const DomWidget *domWidget,
+ const QString &customWidgetScript,
+ QWidget *widget, const WidgetList &children,
+ QString *errorMessage)
+{
+ typedef QList<DomScript*> DomScripts;
+
+ const Options scriptOptions = m_impl->options();
+ if (scriptOptions & DisableScripts)
+ return true;
+ // get list
+ const DomScripts domScripts = domWidget->elementScript();
+ // Concatenate snippets, starting with custom widget script
+ QString script = customWidgetScript;
+ if (script.isEmpty() && domScripts.empty())
+ return true;
+
+ foreach (const DomScript *scriptSnippet, domScripts) {
+ // Ensure new line
+ if (!script.isEmpty() && !script.endsWith(QLatin1Char('\n')))
+ script += QLatin1Char('\n');
+ script += scriptSnippet->text();
+ }
+
+ if (script.isEmpty())
+ return true;
+
+ const bool rc = m_impl->run(script, widget, children, errorMessage);
+
+ if (debugFormScriptRunner) {
+ qDebug() << "For " << widget << " with " << children.size() << " children, ran: " << script;
+ if (!rc)
+ qDebug() << *errorMessage;
+ }
+
+ if (!rc) {
+ if (!(scriptOptions & DisableWarnings)) {
+ const QString message = QCoreApplication::tr("An error occurred while running the script for %1: %2\nScript: %3").
+ arg(widget->objectName()).arg(*errorMessage).arg(script);
+ qWarning() << message;
+ }
+ }
+ return rc;
+}
+
+QFormScriptRunner::Options QFormScriptRunner::options() const
+{
+ return m_impl->options();
+}
+
+void QFormScriptRunner::setOptions(Options options)
+{
+ m_impl->setOptions(options);
+}
+
+
+QFormScriptRunner::Errors QFormScriptRunner::errors() const
+{
+ return m_impl->errors();
+}
+
+void QFormScriptRunner::clearErrors()
+{
+ m_impl->clearErrors();
+}
+
+
+#ifdef QFORMINTERNAL_NAMESPACE
+} // namespace QFormInternal
+#endif
+
+QT_END_NAMESPACE