--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/qml/qdeclarativeinclude.cpp Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,307 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module 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 "qdeclarativeinclude_p.h"
+
+#include <QtScript/qscriptengine.h>
+#include <QtNetwork/qnetworkrequest.h>
+#include <QtNetwork/qnetworkreply.h>
+#include <QtCore/qfile.h>
+
+#include <private/qdeclarativeengine_p.h>
+#include <private/qdeclarativeglobalscriptclass_p.h>
+
+QT_BEGIN_NAMESPACE
+
+QDeclarativeInclude::QDeclarativeInclude(const QUrl &url,
+ QDeclarativeEngine *engine,
+ QScriptContext *ctxt)
+: QObject(engine), m_engine(engine), m_network(0), m_reply(0), m_url(url), m_redirectCount(0)
+{
+ QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(engine);
+ m_context = ep->contextClass->contextFromValue(QScriptDeclarativeClass::scopeChainValue(ctxt, -3));
+
+ m_scope[0] = QScriptDeclarativeClass::scopeChainValue(ctxt, -4);
+ m_scope[1] = QScriptDeclarativeClass::scopeChainValue(ctxt, -5);
+
+ m_scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);
+ m_network = QDeclarativeScriptEngine::get(m_scriptEngine)->networkAccessManager();
+
+ m_result = resultValue(m_scriptEngine);
+
+ QNetworkRequest request;
+ request.setUrl(url);
+
+ m_reply = m_network->get(request);
+ QObject::connect(m_reply, SIGNAL(finished()), this, SLOT(finished()));
+}
+
+QDeclarativeInclude::~QDeclarativeInclude()
+{
+ delete m_reply;
+}
+
+QScriptValue QDeclarativeInclude::resultValue(QScriptEngine *engine, Status status)
+{
+ QScriptValue result = engine->newObject();
+ result.setProperty(QLatin1String("OK"), QScriptValue(engine, Ok));
+ result.setProperty(QLatin1String("LOADING"), QScriptValue(engine, Loading));
+ result.setProperty(QLatin1String("NETWORK_ERROR"), QScriptValue(engine, NetworkError));
+ result.setProperty(QLatin1String("EXCEPTION"), QScriptValue(engine, Exception));
+
+ result.setProperty(QLatin1String("status"), QScriptValue(engine, status));
+ return result;
+}
+
+QScriptValue QDeclarativeInclude::result() const
+{
+ return m_result;
+}
+
+void QDeclarativeInclude::setCallback(const QScriptValue &c)
+{
+ m_callback = c;
+}
+
+QScriptValue QDeclarativeInclude::callback() const
+{
+ return m_callback;
+}
+
+#define INCLUDE_MAXIMUM_REDIRECT_RECURSION 15
+void QDeclarativeInclude::finished()
+{
+ m_redirectCount++;
+
+ if (m_redirectCount < INCLUDE_MAXIMUM_REDIRECT_RECURSION) {
+ QVariant redirect = m_reply->attribute(QNetworkRequest::RedirectionTargetAttribute);
+ if (redirect.isValid()) {
+ m_url = m_url.resolved(redirect.toUrl());
+ delete m_reply;
+
+ QNetworkRequest request;
+ request.setUrl(m_url);
+
+ m_reply = m_network->get(request);
+ QObject::connect(m_reply, SIGNAL(finished()), this, SLOT(finished()));
+ return;
+ }
+ }
+
+ if (m_reply->error() == QNetworkReply::NoError) {
+ QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(m_engine);
+
+ QByteArray data = m_reply->readAll();
+
+ QString code = QString::fromUtf8(data);
+
+ QString urlString = m_url.toString();
+ QScriptContext *scriptContext = QScriptDeclarativeClass::pushCleanContext(m_scriptEngine);
+ scriptContext->pushScope(ep->contextClass->newUrlContext(m_context, 0, urlString));
+ scriptContext->pushScope(m_scope[0]);
+
+ scriptContext->pushScope(m_scope[1]);
+ scriptContext->setActivationObject(m_scope[1]);
+ QDeclarativeScriptParser::extractPragmas(code);
+
+ m_scriptEngine->evaluate(code, urlString, 1);
+
+ m_scriptEngine->popContext();
+
+ if (m_scriptEngine->hasUncaughtException()) {
+ m_result.setProperty(QLatin1String("status"), QScriptValue(m_scriptEngine, Exception));
+ m_result.setProperty(QLatin1String("exception"), m_scriptEngine->uncaughtException());
+ m_scriptEngine->clearExceptions();
+ } else {
+ m_result.setProperty(QLatin1String("status"), QScriptValue(m_scriptEngine, Ok));
+ }
+ } else {
+ m_result.setProperty(QLatin1String("status"), QScriptValue(m_scriptEngine, NetworkError));
+ }
+
+ callback(m_scriptEngine, m_callback, m_result);
+
+ disconnect();
+ deleteLater();
+}
+
+void QDeclarativeInclude::callback(QScriptEngine *engine, QScriptValue &callback, QScriptValue &status)
+{
+ if (callback.isValid()) {
+ QScriptValue args = engine->newArray(1);
+ args.setProperty(0, status);
+ callback.call(QScriptValue(), args);
+ }
+}
+
+QScriptValue QDeclarativeInclude::include(QScriptContext *ctxt, QScriptEngine *engine)
+{
+ if (ctxt->argumentCount() == 0)
+ return engine->undefinedValue();
+
+ QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(engine);
+
+ QUrl contextUrl = ep->contextClass->urlFromValue(QScriptDeclarativeClass::scopeChainValue(ctxt, -3));
+ if (contextUrl.isEmpty())
+ return ctxt->throwError(QLatin1String("Qt.include(): Can only be called from JavaScript files"));
+
+ QString urlString = ctxt->argument(0).toString();
+ QUrl url(ctxt->argument(0).toString());
+ if (url.isRelative()) {
+ url = QUrl(contextUrl).resolved(url);
+ urlString = url.toString();
+ }
+
+ QString localFile = QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url);
+
+ QScriptValue func = ctxt->argument(1);
+ if (!func.isFunction())
+ func = QScriptValue();
+
+ QScriptValue result;
+ if (localFile.isEmpty()) {
+ QDeclarativeInclude *i =
+ new QDeclarativeInclude(url, QDeclarativeEnginePrivate::getEngine(engine), ctxt);
+
+ if (func.isValid())
+ i->setCallback(func);
+
+ result = i->result();
+ } else {
+
+ QFile f(localFile);
+ if (f.open(QIODevice::ReadOnly)) {
+ QByteArray data = f.readAll();
+ QString code = QString::fromUtf8(data);
+
+ QDeclarativeContextData *context =
+ ep->contextClass->contextFromValue(QScriptDeclarativeClass::scopeChainValue(ctxt, -3));
+
+ QScriptContext *scriptContext = QScriptDeclarativeClass::pushCleanContext(engine);
+ scriptContext->pushScope(ep->contextClass->newUrlContext(context, 0, urlString));
+ scriptContext->pushScope(ep->globalClass->globalObject());
+ QScriptValue scope = QScriptDeclarativeClass::scopeChainValue(ctxt, -5);
+ scriptContext->pushScope(scope);
+ scriptContext->setActivationObject(scope);
+ QDeclarativeScriptParser::extractPragmas(code);
+
+ engine->evaluate(code, urlString, 1);
+
+ engine->popContext();
+
+ if (engine->hasUncaughtException()) {
+ result = resultValue(engine, Exception);
+ result.setProperty(QLatin1String("exception"), engine->uncaughtException());
+ engine->clearExceptions();
+ } else {
+ result = resultValue(engine, Ok);
+ }
+ callback(engine, func, result);
+ } else {
+ result = resultValue(engine, NetworkError);
+ callback(engine, func, result);
+ }
+ }
+
+ return result;
+}
+
+QScriptValue QDeclarativeInclude::worker_include(QScriptContext *ctxt, QScriptEngine *engine)
+{
+ if (ctxt->argumentCount() == 0)
+ return engine->undefinedValue();
+
+ QString urlString = ctxt->argument(0).toString();
+ QUrl url(ctxt->argument(0).toString());
+ if (url.isRelative()) {
+ QString contextUrl = QScriptDeclarativeClass::scopeChainValue(ctxt, -3).data().toString();
+ Q_ASSERT(!contextUrl.isEmpty());
+
+ url = QUrl(contextUrl).resolved(url);
+ urlString = url.toString();
+ }
+
+ QString localFile = QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url);
+
+ QScriptValue func = ctxt->argument(1);
+ if (!func.isFunction())
+ func = QScriptValue();
+
+ QScriptValue result;
+ if (!localFile.isEmpty()) {
+
+ QFile f(localFile);
+ if (f.open(QIODevice::ReadOnly)) {
+ QByteArray data = f.readAll();
+ QString code = QString::fromUtf8(data);
+
+ QScriptContext *scriptContext = QScriptDeclarativeClass::pushCleanContext(engine);
+ QScriptValue urlContext = engine->newObject();
+ urlContext.setData(QScriptValue(engine, urlString));
+ scriptContext->pushScope(urlContext);
+
+ QScriptValue scope = QScriptDeclarativeClass::scopeChainValue(ctxt, -4);
+ scriptContext->pushScope(scope);
+ scriptContext->setActivationObject(scope);
+ QDeclarativeScriptParser::extractPragmas(code);
+
+ engine->evaluate(code, urlString, 1);
+
+ engine->popContext();
+
+ if (engine->hasUncaughtException()) {
+ result = resultValue(engine, Exception);
+ result.setProperty(QLatin1String("exception"), engine->uncaughtException());
+ engine->clearExceptions();
+ } else {
+ result = resultValue(engine, Ok);
+ }
+ callback(engine, func, result);
+ } else {
+ result = resultValue(engine, NetworkError);
+ callback(engine, func, result);
+ }
+ }
+
+ return result;
+}
+
+QT_END_NAMESPACE