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Diffstat (limited to 'src/declarative/qml/qdeclarativetypeloader.cpp')
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diff --git a/src/declarative/qml/qdeclarativetypeloader.cpp b/src/declarative/qml/qdeclarativetypeloader.cpp new file mode 100644 index 00000000..4fa45102 --- /dev/null +++ b/src/declarative/qml/qdeclarativetypeloader.cpp @@ -0,0 +1,1196 @@ +/**************************************************************************** +** +** Copyright (C) 2012 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdeclarativetypeloader_p.h" + +#include <private/qdeclarativeengine_p.h> +#include <private/qdeclarativecompiler_p.h> +#include <private/qdeclarativecomponent_p.h> +#include <private/qdeclarativeglobal_p.h> +#include <private/qdeclarativedebugtrace_p.h> + +#include <QtDeclarative/qdeclarativecomponent.h> +#include <QtCore/qdebug.h> +#include <QtCore/qdir.h> +#include <QtCore/qdiriterator.h> +#include <QtCore/qfile.h> + +QT_BEGIN_NAMESPACE + +/* +Returns the set of QML files in path (qmldir, *.qml, *.js). The caller +is responsible for deleting the returned data. +*/ +static QSet<QString> *qmlFilesInDirectory(const QString &path) +{ + QDirIterator dir(path, QDir::Files); + if (!dir.hasNext()) + return 0; + QSet<QString> *files = new QSet<QString>; + while (dir.hasNext()) { + dir.next(); + QString fileName = dir.fileName(); + if (fileName == QLatin1String("qmldir") + || fileName.endsWith(QLatin1String(".qml")) + || fileName.endsWith(QLatin1String(".js"))) { +#if defined(Q_OS_WIN32) || defined(Q_OS_WINCE) || defined(Q_OS_DARWIN) || defined(Q_OS_SYMBIAN) + fileName = fileName.toLower(); +#endif + files->insert(fileName); + } + } + return files; +} + + +/*! +\class QDeclarativeDataBlob +\brief The QDeclarativeDataBlob encapsulates a data request that can be issued to a QDeclarativeDataLoader. +\internal + +QDeclarativeDataBlob's are loaded by a QDeclarativeDataLoader. The user creates the QDeclarativeDataBlob +and then calls QDeclarativeDataLoader::load() or QDeclarativeDataLoader::loadWithStaticData() to load it. +The QDeclarativeDataLoader invokes callbacks on the QDeclarativeDataBlob as data becomes available. +*/ + +/*! + \class QDeclarativeTypeLoader + \internal +*/ + +/*! +\enum QDeclarativeDataBlob::Status + +This enum describes the status of the data blob. + +\list +\o Null The blob has not yet been loaded by a QDeclarativeDataLoader +\o Loading The blob is loading network data. The QDeclarativeDataBlob::setData() callback has not yet been +invoked or has not yet returned. +\o WaitingForDependencies The blob is waiting for dependencies to be done before continueing. This status +only occurs after the QDeclarativeDataBlob::setData() callback has been made, and when the blob has outstanding +dependencies. +\o Complete The blob's data has been loaded and all dependencies are done. +\o Error An error has been set on this blob. +\endlist +*/ + +/*! +\enum QDeclarativeDataBlob::Type + +This enum describes the type of the data blob. + +\list +\o QmlFile This is a QDeclarativeTypeData +\o JavaScriptFile This is a QDeclarativeScriptData +\o QmldirFile This is a QDeclarativeQmldirData +\endlist +*/ + +/*! +Create a new QDeclarativeDataBlob for \a url and of the provided \a type. +*/ +QDeclarativeDataBlob::QDeclarativeDataBlob(const QUrl &url, Type type) +: m_type(type), m_status(Null), m_progress(0), m_url(url), m_finalUrl(url), m_manager(0), + m_redirectCount(0), m_inCallback(false), m_isDone(false) +{ +} + +/*! \internal */ +QDeclarativeDataBlob::~QDeclarativeDataBlob() +{ + Q_ASSERT(m_waitingOnMe.isEmpty()); + + cancelAllWaitingFor(); +} + +/*! +Returns the type provided to the constructor. +*/ +QDeclarativeDataBlob::Type QDeclarativeDataBlob::type() const +{ + return m_type; +} + +/*! +Returns the blob's status. +*/ +QDeclarativeDataBlob::Status QDeclarativeDataBlob::status() const +{ + return m_status; +} + +/*! +Returns true if the status is Null. +*/ +bool QDeclarativeDataBlob::isNull() const +{ + return m_status == Null; +} + +/*! +Returns true if the status is Loading. +*/ +bool QDeclarativeDataBlob::isLoading() const +{ + return m_status == Loading; +} + +/*! +Returns true if the status is WaitingForDependencies. +*/ +bool QDeclarativeDataBlob::isWaiting() const +{ + return m_status == WaitingForDependencies; +} + +/*! +Returns true if the status is Complete. +*/ +bool QDeclarativeDataBlob::isComplete() const +{ + return m_status == Complete; +} + +/*! +Returns true if the status is Error. +*/ +bool QDeclarativeDataBlob::isError() const +{ + return m_status == Error; +} + +/*! +Returns true if the status is Complete or Error. +*/ +bool QDeclarativeDataBlob::isCompleteOrError() const +{ + return isComplete() || isError(); +} + +/*! +Returns the data download progress from 0 to 1. +*/ +qreal QDeclarativeDataBlob::progress() const +{ + return m_progress; +} + +/*! +Returns the blob url passed to the constructor. If a network redirect +happens while fetching the data, this url remains the same. + +\sa finalUrl() +*/ +QUrl QDeclarativeDataBlob::url() const +{ + return m_url; +} + +/*! +Returns the final url of the data. Initially this is the same as +url(), but if a network redirect happens while fetching the data, this url +is updated to reflect the new location. +*/ +QUrl QDeclarativeDataBlob::finalUrl() const +{ + return m_finalUrl; +} + +/*! +Return the errors on this blob. +*/ +QList<QDeclarativeError> QDeclarativeDataBlob::errors() const +{ + return m_errors; +} + +/*! +Mark this blob as having \a errors. + +All outstanding dependencies will be cancelled. Requests to add new dependencies +will be ignored. Entry into the Error state is irreversable, although you can change the +specific errors by additional calls to setError. +*/ +void QDeclarativeDataBlob::setError(const QDeclarativeError &errors) +{ + QList<QDeclarativeError> l; + l << errors; + setError(l); +} + +/*! +\overload +*/ +void QDeclarativeDataBlob::setError(const QList<QDeclarativeError> &errors) +{ + m_status = Error; + m_errors = errors; + + cancelAllWaitingFor(); + + if (!m_inCallback) + tryDone(); +} + +/*! +Wait for \a blob to become complete or to error. If \a blob is already +complete or in error, or this blob is already complete, this has no effect. +*/ +void QDeclarativeDataBlob::addDependency(QDeclarativeDataBlob *blob) +{ + Q_ASSERT(status() != Null); + + if (!blob || + blob->status() == Error || blob->status() == Complete || + status() == Error || status() == Complete || + m_waitingFor.contains(blob)) + return; + + blob->addref(); + m_status = WaitingForDependencies; + m_waitingFor.append(blob); + blob->m_waitingOnMe.append(this); +} + +/*! +\fn void QDeclarativeDataBlob::dataReceived(const QByteArray &data) + +Invoked when data for the blob is received. Implementors should use this callback +to determine a blob's dependencies. Within this callback you may call setError() +or addDependency(). +*/ + +/*! +Invoked once data has either been received or a network error occurred, and all +dependencies are complete. + +You can set an error in this method, but you cannot add new dependencies. Implementors +should use this callback to finalize processing of data. + +The default implementation does nothing. +*/ +void QDeclarativeDataBlob::done() +{ +} + +/*! +Invoked if there is a network error while fetching this blob. + +The default implementation sets an appropriate QDeclarativeError. +*/ +void QDeclarativeDataBlob::networkError(QNetworkReply::NetworkError networkError) +{ + Q_UNUSED(networkError); + + QDeclarativeError error; + error.setUrl(m_finalUrl); + + const char *errorString = 0; + switch (networkError) { + default: + errorString = "Network error"; + break; + case QNetworkReply::ConnectionRefusedError: + errorString = "Connection refused"; + break; + case QNetworkReply::RemoteHostClosedError: + errorString = "Remote host closed the connection"; + break; + case QNetworkReply::HostNotFoundError: + errorString = "Host not found"; + break; + case QNetworkReply::TimeoutError: + errorString = "Timeout"; + break; + case QNetworkReply::ProxyConnectionRefusedError: + case QNetworkReply::ProxyConnectionClosedError: + case QNetworkReply::ProxyNotFoundError: + case QNetworkReply::ProxyTimeoutError: + case QNetworkReply::ProxyAuthenticationRequiredError: + case QNetworkReply::UnknownProxyError: + errorString = "Proxy error"; + break; + case QNetworkReply::ContentAccessDenied: + errorString = "Access denied"; + break; + case QNetworkReply::ContentNotFoundError: + errorString = "File not found"; + break; + case QNetworkReply::AuthenticationRequiredError: + errorString = "Authentication required"; + break; + }; + + error.setDescription(QLatin1String(errorString)); + + setError(error); +} + +/*! +Called if \a blob, which was previously waited for, has an error. + +The default implementation does nothing. +*/ +void QDeclarativeDataBlob::dependencyError(QDeclarativeDataBlob *blob) +{ + Q_UNUSED(blob); +} + +/*! +Called if \a blob, which was previously waited for, has completed. + +The default implementation does nothing. +*/ +void QDeclarativeDataBlob::dependencyComplete(QDeclarativeDataBlob *blob) +{ + Q_UNUSED(blob); +} + +/*! +Called when all blobs waited for have completed. This occurs regardless of +whether they are in error, or complete state. + +The default implementation does nothing. +*/ +void QDeclarativeDataBlob::allDependenciesDone() +{ +} + +/*! +Called when the download progress of this blob changes. \a progress goes +from 0 to 1. +*/ +void QDeclarativeDataBlob::downloadProgressChanged(qreal progress) +{ + Q_UNUSED(progress); +} + +void QDeclarativeDataBlob::tryDone() +{ + if (status() != Loading && m_waitingFor.isEmpty() && !m_isDone) { + if (status() != Error) + m_status = Complete; + + m_isDone = true; + done(); + notifyAllWaitingOnMe(); + } +} + +void QDeclarativeDataBlob::cancelAllWaitingFor() +{ + while (m_waitingFor.count()) { + QDeclarativeDataBlob *blob = m_waitingFor.takeLast(); + + Q_ASSERT(blob->m_waitingOnMe.contains(this)); + + blob->m_waitingOnMe.removeOne(this); + + blob->release(); + } +} + +void QDeclarativeDataBlob::notifyAllWaitingOnMe() +{ + while (m_waitingOnMe.count()) { + QDeclarativeDataBlob *blob = m_waitingOnMe.takeLast(); + + Q_ASSERT(blob->m_waitingFor.contains(this)); + + blob->notifyComplete(this); + } +} + +void QDeclarativeDataBlob::notifyComplete(QDeclarativeDataBlob *blob) +{ + Q_ASSERT(m_waitingFor.contains(blob)); + Q_ASSERT(blob->status() == Error || blob->status() == Complete); + + m_inCallback = true; + + if (blob->status() == Error) { + dependencyError(blob); + } else if (blob->status() == Complete) { + dependencyComplete(blob); + } + + m_waitingFor.removeOne(blob); + blob->release(); + + if (!isError() && m_waitingFor.isEmpty()) + allDependenciesDone(); + + m_inCallback = false; + + tryDone(); +} + +/*! +\class QDeclarativeDataLoader +\brief The QDeclarativeDataLoader class abstracts loading files and their dependencies over the network. +\internal + +The QDeclarativeDataLoader class is provided for the exclusive use of the QDeclarativeTypeLoader class. + +Clients create QDeclarativeDataBlob instances and submit them to the QDeclarativeDataLoader class +through the QDeclarativeDataLoader::load() or QDeclarativeDataLoader::loadWithStaticData() methods. +The loader then fetches the data over the network or from the local file system in an efficient way. +QDeclarativeDataBlob is an abstract class, so should always be specialized. + +Once data is received, the QDeclarativeDataBlob::dataReceived() method is invoked on the blob. The +derived class should use this callback to process the received data. Processing of the data can +result in an error being set (QDeclarativeDataBlob::setError()), or one or more dependencies being +created (QDeclarativeDataBlob::addDependency()). Dependencies are other QDeclarativeDataBlob's that +are required before processing can fully complete. + +To complete processing, the QDeclarativeDataBlob::done() callback is invoked. done() is called when +one of these three preconditions are met. + +\list 1 +\o The QDeclarativeDataBlob has no dependencies. +\o The QDeclarativeDataBlob has an error set. +\o All the QDeclarativeDataBlob's dependencies are themselves "done()". +\endlist + +Thus QDeclarativeDataBlob::done() will always eventually be called, even if the blob has an error set. +*/ + +/*! +Create a new QDeclarativeDataLoader for \a engine. +*/ +QDeclarativeDataLoader::QDeclarativeDataLoader(QDeclarativeEngine *engine) +: m_engine(engine) +{ +} + +/*! \internal */ +QDeclarativeDataLoader::~QDeclarativeDataLoader() +{ + for (NetworkReplies::Iterator iter = m_networkReplies.begin(); iter != m_networkReplies.end(); ++iter) + (*iter)->release(); +} + +/*! +Load the provided \a blob from the network or filesystem. +*/ +void QDeclarativeDataLoader::load(QDeclarativeDataBlob *blob) +{ + Q_ASSERT(blob->status() == QDeclarativeDataBlob::Null); + Q_ASSERT(blob->m_manager == 0); + + blob->m_status = QDeclarativeDataBlob::Loading; + + if (blob->m_url.isEmpty()) { + QDeclarativeError error; + error.setDescription(QLatin1String("Invalid null URL")); + blob->setError(error); + return; + } + + QString lf = QDeclarativeEnginePrivate::urlToLocalFileOrQrc(blob->m_url); + + if (!lf.isEmpty()) { + if (!QDeclarative_isFileCaseCorrect(lf)) { + QDeclarativeError error; + error.setUrl(blob->m_url); + error.setDescription(QLatin1String("File name case mismatch")); + blob->setError(error); + return; + } + QFile file(lf); + if (file.open(QFile::ReadOnly)) { + QByteArray data = file.readAll(); + + blob->m_progress = 1.; + blob->downloadProgressChanged(1.); + + setData(blob, data); + } else { + blob->networkError(QNetworkReply::ContentNotFoundError); + } + + } else { + + blob->m_manager = this; + QNetworkReply *reply = m_engine->networkAccessManager()->get(QNetworkRequest(blob->m_url)); + QObject::connect(reply, SIGNAL(downloadProgress(qint64,qint64)), + this, SLOT(networkReplyProgress(qint64,qint64))); + QObject::connect(reply, SIGNAL(finished()), + this, SLOT(networkReplyFinished())); + m_networkReplies.insert(reply, blob); + + blob->addref(); + } +} + +#define DATALOADER_MAXIMUM_REDIRECT_RECURSION 16 + +void QDeclarativeDataLoader::networkReplyFinished() +{ + QNetworkReply *reply = static_cast<QNetworkReply *>(sender()); + reply->deleteLater(); + + QDeclarativeDataBlob *blob = m_networkReplies.take(reply); + + Q_ASSERT(blob); + + blob->m_redirectCount++; + + if (blob->m_redirectCount < DATALOADER_MAXIMUM_REDIRECT_RECURSION) { + QVariant redirect = reply->attribute(QNetworkRequest::RedirectionTargetAttribute); + if (redirect.isValid()) { + QUrl url = reply->url().resolved(redirect.toUrl()); + blob->m_finalUrl = url; + + QNetworkReply *reply = m_engine->networkAccessManager()->get(QNetworkRequest(url)); + QObject::connect(reply, SIGNAL(finished()), this, SLOT(networkReplyFinished())); + m_networkReplies.insert(reply, blob); + return; + } + } + + if (reply->error()) { + blob->networkError(reply->error()); + } else { + QByteArray data = reply->readAll(); + setData(blob, data); + } + + blob->release(); +} + +void QDeclarativeDataLoader::networkReplyProgress(qint64 bytesReceived, qint64 bytesTotal) +{ + QNetworkReply *reply = static_cast<QNetworkReply *>(sender()); + QDeclarativeDataBlob *blob = m_networkReplies.value(reply); + + Q_ASSERT(blob); + + if (bytesTotal != 0) { + blob->m_progress = bytesReceived / bytesTotal; + blob->downloadProgressChanged(blob->m_progress); + } +} + +/*! +Load the provided \a blob with \a data. The blob's URL is not used by the data loader in this case. +*/ +void QDeclarativeDataLoader::loadWithStaticData(QDeclarativeDataBlob *blob, const QByteArray &data) +{ + Q_ASSERT(blob->status() == QDeclarativeDataBlob::Null); + Q_ASSERT(blob->m_manager == 0); + + blob->m_status = QDeclarativeDataBlob::Loading; + + setData(blob, data); +} + +/*! +Return the QDeclarativeEngine associated with this loader +*/ +QDeclarativeEngine *QDeclarativeDataLoader::engine() const +{ + return m_engine; +} + +void QDeclarativeDataLoader::setData(QDeclarativeDataBlob *blob, const QByteArray &data) +{ + blob->m_inCallback = true; + + blob->dataReceived(data); + + if (!blob->isError() && !blob->isWaiting()) + blob->allDependenciesDone(); + + if (blob->status() != QDeclarativeDataBlob::Error) + blob->m_status = QDeclarativeDataBlob::WaitingForDependencies; + + blob->m_inCallback = false; + + blob->tryDone(); +} + +/*! +Constructs a new type loader that uses the given \a engine. +*/ +QDeclarativeTypeLoader::QDeclarativeTypeLoader(QDeclarativeEngine *engine) +: QDeclarativeDataLoader(engine) +{ +} + +/*! +Destroys the type loader, first clearing the cache of any information about +loaded files. +*/ +QDeclarativeTypeLoader::~QDeclarativeTypeLoader() +{ + clearCache(); +} + +/*! +\enum QDeclarativeTypeLoader::Option + +This enum defines the options that control the way type data is handled. + +\value None The default value, indicating that no other options + are enabled. +\value PreserveParser The parser used to handle the type data is preserved + after the data has been parsed. +*/ + +/*! +Returns a QDeclarativeTypeData for the specified \a url. The QDeclarativeTypeData may be cached. +*/ +QDeclarativeTypeData *QDeclarativeTypeLoader::get(const QUrl &url) +{ + Q_ASSERT(!url.isRelative() && + (QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url).isEmpty() || + !QDir::isRelativePath(QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url)))); + + QDeclarativeTypeData *typeData = m_typeCache.value(url); + + if (!typeData) { + typeData = new QDeclarativeTypeData(url, None, this); + m_typeCache.insert(url, typeData); + QDeclarativeDataLoader::load(typeData); + } + + typeData->addref(); + return typeData; +} + +/*! +Returns a QDeclarativeTypeData for the given \a data with the provided base \a url. The +QDeclarativeTypeData will not be cached. + +The specified \a options control how the loader handles type data. +*/ +QDeclarativeTypeData *QDeclarativeTypeLoader::get(const QByteArray &data, const QUrl &url, Options options) +{ + QDeclarativeTypeData *typeData = new QDeclarativeTypeData(url, options, this); + QDeclarativeDataLoader::loadWithStaticData(typeData, data); + return typeData; +} + +/*! +Returns a QDeclarativeScriptData for \a url. The QDeclarativeScriptData may be cached. +*/ +QDeclarativeScriptData *QDeclarativeTypeLoader::getScript(const QUrl &url) +{ + Q_ASSERT(!url.isRelative() && + (QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url).isEmpty() || + !QDir::isRelativePath(QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url)))); + + QDeclarativeScriptData *scriptData = m_scriptCache.value(url); + + if (!scriptData) { + scriptData = new QDeclarativeScriptData(url); + m_scriptCache.insert(url, scriptData); + QDeclarativeDataLoader::load(scriptData); + } + + scriptData->addref(); + return scriptData; +} + +/*! +Returns a QDeclarativeQmldirData for \a url. The QDeclarativeQmldirData may be cached. +*/ +QDeclarativeQmldirData *QDeclarativeTypeLoader::getQmldir(const QUrl &url) +{ + Q_ASSERT(!url.isRelative() && + (QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url).isEmpty() || + !QDir::isRelativePath(QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url)))); + + QDeclarativeQmldirData *qmldirData = m_qmldirCache.value(url); + + if (!qmldirData) { + qmldirData = new QDeclarativeQmldirData(url); + m_qmldirCache.insert(url, qmldirData); + QDeclarativeDataLoader::load(qmldirData); + } + + qmldirData->addref(); + return qmldirData; +} + +/*! +Returns the absolute filename of path via a directory cache for files named +"qmldir", "*.qml", "*.js" +Returns a empty string if the path does not exist. +*/ +QString QDeclarativeTypeLoader::absoluteFilePath(const QString &path) +{ + if (path.isEmpty()) + return QString(); + if (path.at(0) == QLatin1Char(':')) { + // qrc resource + QFileInfo fileInfo(path); + return fileInfo.isFile() ? fileInfo.absoluteFilePath() : QString(); + } +#if defined(Q_OS_WIN32) || defined(Q_OS_WINCE) || defined(Q_OS_DARWIN) || defined(Q_OS_SYMBIAN) + QString lowPath(path.toLower()); +#else + QString lowPath(path); +#endif + int lastSlash = lowPath.lastIndexOf(QLatin1Char('/')); + QString dirPath = lowPath.left(lastSlash); + + StringSet *fileSet = 0; + QHash<QString,StringSet*>::const_iterator it = m_importDirCache.find(dirPath); + if (it == m_importDirCache.end()) { + StringSet *files = qmlFilesInDirectory(path.left(lastSlash)); + m_importDirCache.insert(dirPath, files); + fileSet = files; + } else { + fileSet = *it; + } + if (!fileSet) + return QString(); + + QString absoluteFilePath = fileSet->contains(QString(lowPath.constData()+lastSlash+1, lowPath.length()-lastSlash-1)) ? path : QString(); + if (absoluteFilePath.length() > 2 && absoluteFilePath.at(0) != QLatin1Char('/') && absoluteFilePath.at(1) != QLatin1Char(':')) + absoluteFilePath = QFileInfo(absoluteFilePath).absoluteFilePath(); + + return absoluteFilePath; +} + +/*! +Return a QDeclarativeDirParser for absoluteFilePath. The QDeclarativeDirParser may be cached. +*/ +const QDeclarativeDirParser *QDeclarativeTypeLoader::qmlDirParser(const QString &absoluteFilePath) +{ + QDeclarativeDirParser *qmldirParser; + QHash<QString,QDeclarativeDirParser*>::const_iterator it = m_importQmlDirCache.find(absoluteFilePath); + if (it == m_importQmlDirCache.end()) { + qmldirParser = new QDeclarativeDirParser; + qmldirParser->setFileSource(absoluteFilePath); + qmldirParser->setUrl(QUrl::fromLocalFile(absoluteFilePath)); + qmldirParser->parse(); + m_importQmlDirCache.insert(absoluteFilePath, qmldirParser); + } else { + qmldirParser = *it; + } + + return qmldirParser; +} + +/* +Clears cached information about loaded files, including any type data, scripts +and qmldir information. +*/ +void QDeclarativeTypeLoader::clearCache() +{ + for (TypeCache::Iterator iter = m_typeCache.begin(); iter != m_typeCache.end(); ++iter) + (*iter)->release(); + for (ScriptCache::Iterator iter = m_scriptCache.begin(); iter != m_scriptCache.end(); ++iter) + (*iter)->release(); + for (QmldirCache::Iterator iter = m_qmldirCache.begin(); iter != m_qmldirCache.end(); ++iter) + (*iter)->release(); + qDeleteAll(m_importDirCache); + qDeleteAll(m_importQmlDirCache); + + m_typeCache.clear(); + m_scriptCache.clear(); + m_qmldirCache.clear(); + m_importDirCache.clear(); + m_importQmlDirCache.clear(); +} + + +QDeclarativeTypeData::QDeclarativeTypeData(const QUrl &url, QDeclarativeTypeLoader::Options options, + QDeclarativeTypeLoader *manager) +: QDeclarativeDataBlob(url, QmlFile), m_options(options), m_imports(manager), m_typesResolved(false), + m_compiledData(0), m_typeLoader(manager) +{ +} + +QDeclarativeTypeData::~QDeclarativeTypeData() +{ + for (int ii = 0; ii < m_scripts.count(); ++ii) + m_scripts.at(ii).script->release(); + for (int ii = 0; ii < m_qmldirs.count(); ++ii) + m_qmldirs.at(ii)->release(); + for (int ii = 0; ii < m_types.count(); ++ii) + if (m_types.at(ii).typeData) m_types.at(ii).typeData->release(); + if (m_compiledData) + m_compiledData->release(); +} + +QDeclarativeTypeLoader *QDeclarativeTypeData::typeLoader() const +{ + return m_typeLoader; +} + +const QDeclarativeImports &QDeclarativeTypeData::imports() const +{ + return m_imports; +} + +const QDeclarativeScriptParser &QDeclarativeTypeData::parser() const +{ + return scriptParser; +} + +const QList<QDeclarativeTypeData::TypeReference> &QDeclarativeTypeData::resolvedTypes() const +{ + return m_types; +} + +const QList<QDeclarativeTypeData::ScriptReference> &QDeclarativeTypeData::resolvedScripts() const +{ + return m_scripts; +} + +QDeclarativeCompiledData *QDeclarativeTypeData::compiledData() const +{ + if (m_compiledData) + m_compiledData->addref(); + + return m_compiledData; +} + +void QDeclarativeTypeData::registerCallback(TypeDataCallback *callback) +{ + Q_ASSERT(!m_callbacks.contains(callback)); + m_callbacks.append(callback); +} + +void QDeclarativeTypeData::unregisterCallback(TypeDataCallback *callback) +{ + Q_ASSERT(m_callbacks.contains(callback)); + m_callbacks.removeOne(callback); + Q_ASSERT(!m_callbacks.contains(callback)); +} + +void QDeclarativeTypeData::done() +{ + addref(); + + // Check all script dependencies for errors + for (int ii = 0; !isError() && ii < m_scripts.count(); ++ii) { + const ScriptReference &script = m_scripts.at(ii); + Q_ASSERT(script.script->isCompleteOrError()); + if (script.script->isError()) { + QList<QDeclarativeError> errors = script.script->errors(); + QDeclarativeError error; + error.setUrl(finalUrl()); + error.setLine(script.location.line); + error.setColumn(script.location.column); + error.setDescription(QDeclarativeTypeLoader::tr("Script %1 unavailable").arg(script.script->url().toString())); + errors.prepend(error); + setError(errors); + } + } + + // Check all type dependencies for errors + for (int ii = 0; !isError() && ii < m_types.count(); ++ii) { + const TypeReference &type = m_types.at(ii); + Q_ASSERT(!type.typeData || type.typeData->isCompleteOrError()); + if (type.typeData && type.typeData->isError()) { + QString typeName = scriptParser.referencedTypes().at(ii)->name; + + QList<QDeclarativeError> errors = type.typeData->errors(); + QDeclarativeError error; + error.setUrl(finalUrl()); + error.setLine(type.location.line); + error.setColumn(type.location.column); + error.setDescription(QDeclarativeTypeLoader::tr("Type %1 unavailable").arg(typeName)); + errors.prepend(error); + setError(errors); + } + } + + // Compile component + if (!isError()) + compile(); + + if (!(m_options & QDeclarativeTypeLoader::PreserveParser)) + scriptParser.clear(); + + // Notify callbacks + while (!m_callbacks.isEmpty()) { + TypeDataCallback *callback = m_callbacks.takeFirst(); + callback->typeDataReady(this); + } + + release(); +} + +void QDeclarativeTypeData::dataReceived(const QByteArray &data) +{ + if (!scriptParser.parse(data, finalUrl())) { + setError(scriptParser.errors()); + return; + } + + m_imports.setBaseUrl(finalUrl()); + + foreach (const QDeclarativeScriptParser::Import &import, scriptParser.imports()) { + if (import.type == QDeclarativeScriptParser::Import::File && import.qualifier.isEmpty()) { + QUrl importUrl = finalUrl().resolved(QUrl(import.uri + QLatin1String("/qmldir"))); + if (QDeclarativeEnginePrivate::urlToLocalFileOrQrc(importUrl).isEmpty()) { + QDeclarativeQmldirData *data = typeLoader()->getQmldir(importUrl); + addDependency(data); + m_qmldirs << data; + } + } else if (import.type == QDeclarativeScriptParser::Import::Script) { + QUrl scriptUrl = finalUrl().resolved(QUrl(import.uri)); + QDeclarativeScriptData *data = typeLoader()->getScript(scriptUrl); + addDependency(data); + + ScriptReference ref; + ref.location = import.location.start; + ref.qualifier = import.qualifier; + ref.script = data; + m_scripts << ref; + + } + } + + if (!finalUrl().scheme().isEmpty()) { + QUrl importUrl = finalUrl().resolved(QUrl(QLatin1String("qmldir"))); + if (QDeclarativeEnginePrivate::urlToLocalFileOrQrc(importUrl).isEmpty()) { + QDeclarativeQmldirData *data = typeLoader()->getQmldir(importUrl); + addDependency(data); + m_qmldirs << data; + } + } +} + +void QDeclarativeTypeData::allDependenciesDone() +{ + if (!m_typesResolved) { + resolveTypes(); + m_typesResolved = true; + } +} + +void QDeclarativeTypeData::downloadProgressChanged(qreal p) +{ + for (int ii = 0; ii < m_callbacks.count(); ++ii) { + TypeDataCallback *callback = m_callbacks.at(ii); + callback->typeDataProgress(this, p); + } +} + +void QDeclarativeTypeData::compile() +{ + Q_ASSERT(m_compiledData == 0); + QDeclarativeDebugTrace::startRange(QDeclarativeDebugTrace::Compiling); + + m_compiledData = new QDeclarativeCompiledData(typeLoader()->engine()); + m_compiledData->url = m_imports.baseUrl(); + m_compiledData->name = m_compiledData->url.toString(); + QDeclarativeDebugTrace::rangeData(QDeclarativeDebugTrace::Compiling, m_compiledData->name); + + QDeclarativeCompiler compiler; + if (!compiler.compile(typeLoader()->engine(), this, m_compiledData)) { + setError(compiler.errors()); + m_compiledData->release(); + m_compiledData = 0; + } + QDeclarativeDebugTrace::endRange(QDeclarativeDebugTrace::Compiling); +} + +void QDeclarativeTypeData::resolveTypes() +{ + QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(m_typeLoader->engine()); + QDeclarativeImportDatabase *importDatabase = &ep->importDatabase; + + // For local urls, add an implicit import "." as first (most overridden) lookup. + // This will also trigger the loading of the qmldir and the import of any native + // types from available plugins. + if (QDeclarativeQmldirData *qmldir = qmldirForUrl(finalUrl().resolved(QUrl(QLatin1String("./qmldir"))))) { + m_imports.addImport(importDatabase, QLatin1String("."), + QString(), -1, -1, QDeclarativeScriptParser::Import::File, + qmldir->dirComponents(), 0); + } else { + m_imports.addImport(importDatabase, QLatin1String("."), + QString(), -1, -1, QDeclarativeScriptParser::Import::File, + QDeclarativeDirComponents(), 0); + } + + foreach (const QDeclarativeScriptParser::Import &import, scriptParser.imports()) { + QDeclarativeDirComponents qmldircomponentsnetwork; + if (import.type == QDeclarativeScriptParser::Import::Script) + continue; + + if (import.type == QDeclarativeScriptParser::Import::File && import.qualifier.isEmpty()) { + QUrl qmldirUrl = finalUrl().resolved(QUrl(import.uri + QLatin1String("/qmldir"))); + if (QDeclarativeQmldirData *qmldir = qmldirForUrl(qmldirUrl)) + qmldircomponentsnetwork = qmldir->dirComponents(); + } + + int vmaj = -1; + int vmin = -1; + + if (!import.version.isEmpty()) { + int dot = import.version.indexOf(QLatin1Char('.')); + if (dot < 0) { + vmaj = import.version.toInt(); + vmin = 0; + } else { + vmaj = import.version.left(dot).toInt(); + vmin = import.version.mid(dot+1).toInt(); + } + } + + QString errorString; + if (!m_imports.addImport(importDatabase, import.uri, import.qualifier, + vmaj, vmin, import.type, qmldircomponentsnetwork, &errorString)) { + QDeclarativeError error; + error.setUrl(m_imports.baseUrl()); + error.setDescription(errorString); + error.setLine(import.location.start.line); + error.setColumn(import.location.start.column); + + setError(error); + return; + } + } + + foreach (QDeclarativeScriptParser::TypeReference *parserRef, scriptParser.referencedTypes()) { + QByteArray typeName = parserRef->name.toUtf8(); + + TypeReference ref; + + QUrl url; + int majorVersion; + int minorVersion; + QDeclarativeImportedNamespace *typeNamespace = 0; + QString errorString; + + if (!m_imports.resolveType(typeName, &ref.type, &url, &majorVersion, &minorVersion, + &typeNamespace, &errorString) || typeNamespace) { + // Known to not be a type: + // - known to be a namespace (Namespace {}) + // - type with unknown namespace (UnknownNamespace.SomeType {}) + QDeclarativeError error; + error.setUrl(m_imports.baseUrl()); + QString userTypeName = parserRef->name; + userTypeName.replace(QLatin1Char('/'),QLatin1Char('.')); + if (typeNamespace) + error.setDescription(QDeclarativeTypeLoader::tr("Namespace %1 cannot be used as a type").arg(userTypeName)); + else + error.setDescription(QDeclarativeTypeLoader::tr("%1 %2").arg(userTypeName).arg(errorString)); + + if (!parserRef->refObjects.isEmpty()) { + QDeclarativeParser::Object *obj = parserRef->refObjects.first(); + error.setLine(obj->location.start.line); + error.setColumn(obj->location.start.column); + } + + setError(error); + return; + } + + if (ref.type) { + ref.majorVersion = majorVersion; + ref.minorVersion = minorVersion; + foreach (QDeclarativeParser::Object *obj, parserRef->refObjects) { + // store namespace for DOM + obj->majorVersion = majorVersion; + obj->minorVersion = minorVersion; + } + } else { + ref.typeData = typeLoader()->get(url); + addDependency(ref.typeData); + } + + if (parserRef->refObjects.count()) + ref.location = parserRef->refObjects.first()->location.start; + + m_types << ref; + } +} + +QDeclarativeQmldirData *QDeclarativeTypeData::qmldirForUrl(const QUrl &url) +{ + for (int ii = 0; ii < m_qmldirs.count(); ++ii) { + if (m_qmldirs.at(ii)->url() == url) + return m_qmldirs.at(ii); + } + return 0; +} + +QDeclarativeScriptData::QDeclarativeScriptData(const QUrl &url) +: QDeclarativeDataBlob(url, JavaScriptFile), m_pragmas(QDeclarativeParser::Object::ScriptBlock::None) +{ +} + +QDeclarativeParser::Object::ScriptBlock::Pragmas QDeclarativeScriptData::pragmas() const +{ + return m_pragmas; +} + +QString QDeclarativeScriptData::scriptSource() const +{ + return m_source; +} + +void QDeclarativeScriptData::dataReceived(const QByteArray &data) +{ + m_source = QString::fromUtf8(data); + m_pragmas = QDeclarativeScriptParser::extractPragmas(m_source); +} + +QDeclarativeQmldirData::QDeclarativeQmldirData(const QUrl &url) +: QDeclarativeDataBlob(url, QmldirFile) +{ +} + +const QDeclarativeDirComponents &QDeclarativeQmldirData::dirComponents() const +{ + return m_components; +} + +void QDeclarativeQmldirData::dataReceived(const QByteArray &data) +{ + QDeclarativeDirParser parser; + parser.setSource(QString::fromUtf8(data)); + parser.parse(); + m_components = parser.components(); +} + +QT_END_NAMESPACE + |