Get rid of the extra directory.

1 files changed, 727 insertions, 0 deletions

diff --git a/src/declarative/util/qmlxmllistmodel.cpp b/src/declarative/util/qmlxmllistmodel.cpp
new file mode 100644
index 0000000..3d90b44
--- /dev/null
+++ b/src/declarative/util/qmlxmllistmodel.cpp
@@ -0,0 +1,727 @@
+/****************************************************************************
+**
+** 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 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 "qmlxmllistmodel_p.h"
+#include "private/qobject_p.h"
+
+#include <QtDeclarative/qmlcontext.h>
+#include <QtDeclarative/qmlengine.h>
+#include <QDebug>
+#include <QApplication>
+#include <QThread>
+#include <QMutex>
+#include <QWaitCondition>
+#include <QXmlQuery>
+#include <QXmlResultItems>
+#include <QXmlNodeModelIndex>
+#include <QBuffer>
+#include <QNetworkRequest>
+#include <QNetworkReply>
+
+QT_BEGIN_NAMESPACE
+
+QML_DEFINE_TYPE(Qt,4,6,XmlRole,QmlXmlListModelRole)
+QML_DEFINE_TYPE(Qt,4,6,XmlListModel,QmlXmlListModel)
+
+/*!
+    \qmlclass XmlRole QmlXmlListModelRole
+    \brief The XmlRole element allows you to specify a role for an XmlListModel.
+*/
+
+/*!
+    \qmlproperty string XmlRole::name
+    The name for the role. This name is used to access the model data for this role from Qml.
+
+    \qml
+    XmlRole { name: "title"; query: "title/string()" }
+
+    ...
+
+    Component {
+        id: myDelegate
+        Text { text: title }
+    }
+    \endqml
+*/
+
+/*!
+    \qmlproperty string XmlRole::query
+    The relative XPath query for this role. The query should not start with a '/' (i.e. it must be
+    relative).
+
+    \qml
+    XmlRole { name: "title"; query: "title/string()" }
+    \endqml
+*/
+
+class Q_DECLARATIVE_EXPORT QmlXmlListModelRole : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(QString name READ name WRITE setName)
+    Q_PROPERTY(QString query READ query WRITE setQuery)
+
+public:
+    QmlXmlListModelRole() {}
+    ~QmlXmlListModelRole() {}
+
+    QString name() const { return m_name; }
+    void setName(const QString &name) { m_name = name; }
+
+    QString query() const { return m_query; }
+    void setQuery(const QString &query)
+    {
+        if (query.startsWith(QLatin1Char('/'))) {
+            qmlInfo(this) << tr("An XmlRole query must not start with '/'");
+            return;
+        }
+        m_query = query;
+    }
+
+    bool isValid() {
+        return !m_name.isEmpty() && !m_query.isEmpty();
+    }
+
+private:
+    QString m_name;
+    QString m_query;
+};
+
+QML_DECLARE_TYPE(QmlXmlListModelRole)
+
+class QmlXmlListModelPrivate;
+struct QmlXmlRoleList : public QmlConcreteList<QmlXmlListModelRole *>
+{
+    QmlXmlRoleList(QmlXmlListModelPrivate *p)
+        : model(p) {}
+    virtual void append(QmlXmlListModelRole *role);
+    //XXX clear, removeAt, and insert need to invalidate any cached data (in data table) as well
+    //    (and the model should emit the appropriate signals)
+    virtual void clear();
+    virtual void removeAt(int i);
+    virtual void insert(int i, QmlXmlListModelRole *role);
+
+    QmlXmlListModelPrivate *model;
+};
+
+class QmlXmlQuery : public QThread
+{
+    Q_OBJECT
+public:
+    QmlXmlQuery(QObject *parent=0)
+        : QThread(parent), m_quit(false), m_restart(false), m_abort(false), m_queryId(0) {
+    }
+    ~QmlXmlQuery() {
+        m_mutex.lock();
+        m_quit = true;
+        m_condition.wakeOne();
+        m_mutex.unlock();
+
+        wait();
+    }
+
+    void abort() {
+        QMutexLocker locker(&m_mutex);
+        m_abort = true;
+    }
+
+    int doQuery(QString query, QString namespaces, QByteArray data, QmlXmlRoleList *roleObjects) {
+        QMutexLocker locker(&m_mutex);
+        m_modelData.clear();
+        m_size = 0;
+        m_data = data;
+        m_query = QLatin1String("doc($src)") + query;
+        m_namespaces = namespaces;
+        m_roleObjects = roleObjects;
+        if (!isRunning()) {
+            m_abort = false;
+            start();
+        } else {
+            m_restart = true;
+            m_condition.wakeOne();
+        }
+        m_queryId++;
+        return m_queryId;
+    }
+
+    QList<QList<QVariant> > modelData() {
+        QMutexLocker locker(&m_mutex);
+        return m_modelData;
+    }
+
+Q_SIGNALS:
+    void queryCompleted(int queryId, int size);
+
+protected:
+    void run() {
+        while (!m_quit) {
+            m_mutex.lock();
+            int queryId = m_queryId;
+            doQueryJob();
+            if (m_size > 0)
+                doSubQueryJob();
+            m_data.clear(); // no longer needed
+            m_mutex.unlock();
+
+            m_mutex.lock();
+            if (!m_abort && m_size > 0)
+                emit queryCompleted(queryId, m_size);
+            if (!m_restart)
+                m_condition.wait(&m_mutex);
+            m_abort = false;
+            m_restart = false;
+            m_mutex.unlock();
+        }
+    }
+
+private:
+    void doQueryJob();
+    void doSubQueryJob();
+
+private:
+    QMutex m_mutex;
+    QWaitCondition m_condition;
+    bool m_quit;
+    bool m_restart;
+    bool m_abort;
+    QByteArray m_data;
+    QString m_query;
+    QString m_namespaces;
+    QString m_prefix;
+    int m_size;
+    int m_queryId;
+    const QmlXmlRoleList *m_roleObjects;
+    QList<QList<QVariant> > m_modelData;
+};
+
+void QmlXmlQuery::doQueryJob()
+{
+    QString r;
+    QXmlQuery query;
+    QBuffer buffer(&m_data);
+    buffer.open(QIODevice::ReadOnly);
+    query.bindVariable(QLatin1String("src"), &buffer);
+    query.setQuery(m_namespaces + m_query);
+    query.evaluateTo(&r);
+
+    //qDebug() << r;
+
+    //always need a single root element
+    QByteArray xml = "<dummy:items xmlns:dummy=\"http://qtsotware.com/dummy\">\n" + r.toUtf8() + "</dummy:items>";
+    QBuffer b(&xml);
+    b.open(QIODevice::ReadOnly);
+    //qDebug() << xml;
+
+    QString namespaces = QLatin1String("declare namespace dummy=\"http://qtsotware.com/dummy\";\n") + m_namespaces;
+    QString prefix = QLatin1String("doc($inputDocument)/dummy:items") +
+                     m_query.mid(m_query.lastIndexOf(QLatin1Char('/')));
+
+    //figure out how many items we are dealing with
+    int count = -1;
+    {
+        QXmlResultItems result;
+        QXmlQuery countquery;
+        countquery.bindVariable(QLatin1String("inputDocument"), &b);
+        countquery.setQuery(namespaces + QLatin1String("count(") + prefix + QLatin1String(")"));
+        countquery.evaluateTo(&result);
+        QXmlItem item(result.next());
+        if (item.isAtomicValue())
+            count = item.toAtomicValue().toInt();
+    }
+    //qDebug() << count;
+
+    m_prefix = namespaces + prefix + QLatin1String("/");
+    m_data = xml;
+    if (count > 0)
+        m_size = count;
+}
+
+void QmlXmlQuery::doSubQueryJob()
+{
+    m_modelData.clear();
+
+    QBuffer b(&m_data);
+    b.open(QIODevice::ReadOnly);
+
+    QXmlQuery subquery;
+    subquery.bindVariable(QLatin1String("inputDocument"), &b);
+
+    //### we might be able to condense even further (query for everything in one go)
+    for (int i = 0; i < m_roleObjects->size(); ++i) {
+        QmlXmlListModelRole *role = m_roleObjects->at(i);
+        if (!role->isValid()) {
+            QList<QVariant> resultList;
+            for (int j = 0; j < m_size; ++j)
+                resultList << QVariant();
+            m_modelData << resultList;
+            continue;
+        }
+        subquery.setQuery(m_prefix + QLatin1String("(let $v := ") + role->query() + QLatin1String(" return if ($v) then ") + role->query() + QLatin1String(" else \"\")"));
+        QXmlResultItems output3;
+        subquery.evaluateTo(&output3);
+        QXmlItem item(output3.next());
+        QList<QVariant> resultList;
+        while (!item.isNull()) {
+            resultList << item.toAtomicValue(); //### we used to trim strings
+            item = output3.next();
+        }
+        //### should warn here if things have gone wrong.
+        while (resultList.count() < m_size)
+            resultList << QVariant();
+        m_modelData << resultList;
+        b.seek(0);
+    }
+
+    //XXX this method is much slower, but would work better for incremental loading
+    /*for (int j = 0; j < m_size; ++j) {
+        QList<QVariant> resultList;
+        for (int i = 0; i < m_roleObjects->size(); ++i) {
+            QmlXmlListModelRole *role = m_roleObjects->at(i);
+            subquery.setQuery(m_prefix.arg(j+1) + role->query());
+            if (role->isStringList()) {
+                QStringList data;
+                subquery.evaluateTo(&data);
+                resultList << QVariant(data);
+                //qDebug() << data;
+            } else {
+                QString s;
+                subquery.evaluateTo(&s);
+                if (role->isCData()) {
+                    //un-escape
+                    s.replace(QLatin1String("&lt;"), QLatin1String("<"));
+                    s.replace(QLatin1String("&gt;"), QLatin1String(">"));
+                    s.replace(QLatin1String("&amp;"), QLatin1String("&"));
+                }
+                resultList << s.trimmed();
+                //qDebug() << s;
+            }
+            b.seek(0);
+        }
+        m_modelData << resultList;
+    }*/
+}
+
+
+//TODO: error handling (currently quite fragile)
+//      profile doQuery and doSubquery
+//      support complex/nested objects?
+//      how do we handle data updates (like rss feed -- usually items inserted at beginning)
+
+
+class QmlXmlListModelPrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QmlXmlListModel)
+public:
+    QmlXmlListModelPrivate()
+        : isComponentComplete(true), size(-1), highestRole(Qt::UserRole)
+        , reply(0), status(QmlXmlListModel::Null), progress(0.0)
+        , queryId(-1), roleObjects(this) {}
+
+    bool isComponentComplete;
+    QUrl src;
+    QString xml;
+    QString query;
+    QString namespaces;
+    int size;
+    QList<int> roles;
+    QStringList roleNames;
+    int highestRole;
+    QNetworkReply *reply;
+    QmlXmlListModel::Status status;
+    qreal progress;
+    QmlXmlQuery qmlXmlQuery;
+    int queryId;
+    QmlXmlRoleList roleObjects;
+    QList<QList<QVariant> > data;
+};
+
+
+void QmlXmlRoleList::append(QmlXmlListModelRole *role) {
+    QmlConcreteList<QmlXmlListModelRole *>::append(role);
+    model->roles << model->highestRole;
+    model->roleNames << role->name();
+    ++model->highestRole;
+}
+
+//XXX clear, removeAt, and insert need to invalidate any cached data (in data table) as well
+//    (and the model should emit the appropriate signals)
+void QmlXmlRoleList::clear()
+{
+    model->roles.clear();
+    model->roleNames.clear();
+    QmlConcreteList<QmlXmlListModelRole *>::clear();
+}
+
+void QmlXmlRoleList::removeAt(int i)
+{
+    model->roles.removeAt(i);
+    model->roleNames.removeAt(i);
+    QmlConcreteList<QmlXmlListModelRole *>::removeAt(i);
+}
+
+//### we should enforce unique role names
+void QmlXmlRoleList::insert(int i, QmlXmlListModelRole *role)
+{
+    QmlConcreteList<QmlXmlListModelRole *>::insert(i, role);
+    model->roles.insert(i, model->highestRole);
+    model->roleNames.insert(i, role->name());
+    ++model->highestRole;
+}
+
+/*!
+    \class QmlXmlListModel
+    \internal
+*/
+
+/*!
+    \qmlclass XmlListModel QmlXmlListModel
+    \brief The XmlListModel element allows you to specify a model using XPath expressions.
+
+    XmlListModel allows you to construct a model from XML data that can then be used as a data source
+    for the view classes (ListView, PathView, GridView) and any other classes that interact with model
+    data (like Repeater).
+
+    The following is an example of a model containing news from a Yahoo RSS feed:
+    \qml
+    XmlListModel {
+        id: feedModel
+        source: "http://rss.news.yahoo.com/rss/oceania"
+        query: "/rss/channel/item"
+        XmlRole { name: "title"; query: "title/string()" }
+        XmlRole { name: "link"; query: "link/string()" }
+        XmlRole { name: "description"; query: "description/string()" }
+    }
+    \endqml
+    \note The model is currently static, so the above is really just a snapshot of an RSS feed. To force a
+    reload of the entire model, you can call the reload function.
+*/
+
+QmlXmlListModel::QmlXmlListModel(QObject *parent)
+    : QListModelInterface(*(new QmlXmlListModelPrivate), parent)
+{
+    Q_D(QmlXmlListModel);
+    connect(&d->qmlXmlQuery, SIGNAL(queryCompleted(int,int)),
+            this, SLOT(queryCompleted(int,int)));
+}
+
+QmlXmlListModel::~QmlXmlListModel()
+{
+}
+
+/*!
+    \qmlproperty list<XmlRole> XmlListModel::roles
+
+    The roles to make available for this model.
+*/
+QmlList<QmlXmlListModelRole *> *QmlXmlListModel::roleObjects()
+{
+    Q_D(QmlXmlListModel);
+    return &d->roleObjects;
+}
+
+QHash<int,QVariant> QmlXmlListModel::data(int index, const QList<int> &roles) const
+{
+    Q_D(const QmlXmlListModel);
+    QHash<int, QVariant> rv;
+    for (int i = 0; i < roles.size(); ++i) {
+        int role = roles.at(i);
+        int roleIndex = d->roles.indexOf(role);
+        rv.insert(role, roleIndex == -1 ? QVariant() : d->data.at(roleIndex).at(index));
+    }
+    return rv;
+}
+
+/*!
+    \qmlproperty int XmlListModel::count
+    The number of data entries in the model.
+*/
+int QmlXmlListModel::count() const
+{
+    Q_D(const QmlXmlListModel);
+    return d->size;
+}
+
+QList<int> QmlXmlListModel::roles() const
+{
+    Q_D(const QmlXmlListModel);
+    return d->roles;
+}
+
+QString QmlXmlListModel::toString(int role) const
+{
+    Q_D(const QmlXmlListModel);
+    int index = d->roles.indexOf(role);
+    if (index == -1)
+        return QString();
+    return d->roleNames.at(index);
+}
+
+/*!
+    \qmlproperty url XmlListModel::source
+    The location of the XML data source.
+
+    If both source and xml are set, xml will be used.
+*/
+QUrl QmlXmlListModel::source() const
+{
+    Q_D(const QmlXmlListModel);
+    return d->src;
+}
+
+void QmlXmlListModel::setSource(const QUrl &src)
+{
+    Q_D(QmlXmlListModel);
+    if (d->src != src) {
+        d->src = src;
+        reload();
+    }
+}
+
+/*!
+    \qmlproperty string XmlListModel::xml
+    This property holds XML text set directly.
+
+    The text is assumed to be UTF-8 encoded.
+
+    If both source and xml are set, xml will be used.
+*/
+QString QmlXmlListModel::xml() const
+{
+    Q_D(const QmlXmlListModel);
+    return d->xml;
+}
+
+void QmlXmlListModel::setXml(const QString &xml)
+{
+    Q_D(QmlXmlListModel);
+    d->xml = xml;
+    reload();
+}
+
+/*!
+    \qmlproperty url XmlListModel::query
+    An absolute XPath query representing the base query for the model items. The query should start with
+    a '/' or '//'.
+*/
+QString QmlXmlListModel::query() const
+{
+    Q_D(const QmlXmlListModel);
+    return d->query;
+}
+
+void QmlXmlListModel::setQuery(const QString &query)
+{
+    Q_D(QmlXmlListModel);
+    if (!query.startsWith(QLatin1Char('/'))) {
+        qmlInfo(this) << tr("An XmlListModel query must start with '/' or \"//\"");
+        return;
+    }
+
+    if (d->query != query) {
+        d->query = query;
+        reload();
+    }
+}
+
+/*!
+    \qmlproperty string XmlListModel::namespaceDeclarations
+    A set of declarations for the namespaces used in the query.
+*/
+QString QmlXmlListModel::namespaceDeclarations() const
+{
+    Q_D(const QmlXmlListModel);
+    return d->namespaces;
+}
+
+void QmlXmlListModel::setNamespaceDeclarations(const QString &declarations)
+{
+    Q_D(QmlXmlListModel);
+    if (d->namespaces != declarations) {
+        d->namespaces = declarations;
+        reload();
+    }
+}
+
+/*!
+    \qmlproperty enum XmlListModel::status
+
+    This property holds the status of data source loading.  It can be one of:
+    \list
+    \o Null - no data source has been set
+    \o Ready - nthe data source has been loaded
+    \o Loading - the data source is currently being loaded
+    \o Error - an error occurred while loading the data source
+    \endlist
+
+    \sa progress
+
+*/
+QmlXmlListModel::Status QmlXmlListModel::status() const
+{
+    Q_D(const QmlXmlListModel);
+    return d->status;
+}
+
+/*!
+    \qmlproperty real XmlListModel::progress
+
+    This property holds the progress of data source loading, from 0.0 (nothing loaded)
+    to 1.0 (finished).
+
+    \sa status
+*/
+qreal QmlXmlListModel::progress() const
+{
+    Q_D(const QmlXmlListModel);
+    return d->progress;
+}
+
+void QmlXmlListModel::classBegin()
+{
+    Q_D(QmlXmlListModel);
+    d->isComponentComplete = false;
+}
+
+void QmlXmlListModel::componentComplete()
+{
+    Q_D(QmlXmlListModel);
+    d->isComponentComplete = true;
+    reload();
+}
+
+/*!
+    \qmlmethod XmlListModel::reload()
+
+    Reloads the model. All the existing model data will be removed, and the model
+    will be rebuilt from scratch.
+*/
+void QmlXmlListModel::reload()
+{
+    Q_D(QmlXmlListModel);
+
+    if (!d->isComponentComplete)
+        return;
+
+    d->qmlXmlQuery.abort();
+    d->queryId = -1;
+
+    //clear existing data
+    int count = d->size;
+    d->size = 0;
+    d->data.clear();
+    if (count > 0)
+        emit itemsRemoved(0, count);
+
+    if (d->src.isEmpty() && d->xml.isEmpty())
+        return;
+
+    if (d->reply) {
+        d->reply->abort();
+        d->reply->deleteLater();
+        d->reply = 0;
+    }
+
+    if (!d->xml.isEmpty()) {
+        d->queryId = d->qmlXmlQuery.doQuery(d->query, d->namespaces, d->xml.toUtf8(), &d->roleObjects);
+        d->progress = 1.0;
+        d->status = Ready;
+        emit progressChanged(d->progress);
+        emit statusChanged(d->status);
+        return;
+    }
+
+    d->progress = 0.0;
+    d->status = Loading;
+    emit progressChanged(d->progress);
+    emit statusChanged(d->status);
+
+    QNetworkRequest req(d->src);
+    d->reply = qmlContext(this)->engine()->networkAccessManager()->get(req);
+    QObject::connect(d->reply, SIGNAL(finished()), this, SLOT(requestFinished()));
+    QObject::connect(d->reply, SIGNAL(downloadProgress(qint64,qint64)),
+                     this, SLOT(requestProgress(qint64,qint64)));
+}
+
+void QmlXmlListModel::requestFinished()
+{
+    Q_D(QmlXmlListModel);
+    if (d->reply->error() != QNetworkReply::NoError) {
+        disconnect(d->reply, 0, this, 0);
+        d->reply->deleteLater();
+        d->reply = 0;
+        d->status = Error;
+    } else {
+        d->status = Ready;
+        QByteArray data = d->reply->readAll();
+        d->queryId = d->qmlXmlQuery.doQuery(d->query, d->namespaces, data, &d->roleObjects);
+        disconnect(d->reply, 0, this, 0);
+        d->reply->deleteLater();
+        d->reply = 0;
+    }
+    d->progress = 1.0;
+    emit progressChanged(d->progress);
+    emit statusChanged(d->status);
+}
+
+void QmlXmlListModel::requestProgress(qint64 received, qint64 total)
+{
+    Q_D(QmlXmlListModel);
+    if (d->status == Loading && total > 0) {
+        d->progress = qreal(received)/total;
+        emit progressChanged(d->progress);
+    }
+}
+
+void QmlXmlListModel::queryCompleted(int id, int size)
+{
+    Q_D(QmlXmlListModel);
+    if (id != d->queryId)
+        return;
+    d->size = size;
+    if (size > 0) {
+        d->data = d->qmlXmlQuery.modelData();
+        emit itemsInserted(0, d->size);
+        emit countChanged();
+    }
+}
+
+QT_END_NAMESPACE
+
+#include "qmlxmllistmodel.moc"