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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the demonstration applications 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 "xbel.h"
#include <QtCore/QFile>
BookmarkNode::BookmarkNode(BookmarkNode::Type type, BookmarkNode *parent) :
expanded(false)
, m_parent(parent)
, m_type(type)
{
if (parent)
parent->add(this);
}
BookmarkNode::~BookmarkNode()
{
if (m_parent)
m_parent->remove(this);
qDeleteAll(m_children);
m_parent = 0;
m_type = BookmarkNode::Root;
}
bool BookmarkNode::operator==(const BookmarkNode &other)
{
if (url != other.url
|| title != other.title
|| desc != other.desc
|| expanded != other.expanded
|| m_type != other.m_type
|| m_children.count() != other.m_children.count())
return false;
for (int i = 0; i < m_children.count(); ++i)
if (!((*(m_children[i])) == (*(other.m_children[i]))))
return false;
return true;
}
BookmarkNode::Type BookmarkNode::type() const
{
return m_type;
}
void BookmarkNode::setType(Type type)
{
m_type = type;
}
QList<BookmarkNode *> BookmarkNode::children() const
{
return m_children;
}
BookmarkNode *BookmarkNode::parent() const
{
return m_parent;
}
void BookmarkNode::add(BookmarkNode *child, int offset)
{
Q_ASSERT(child->m_type != Root);
if (child->m_parent)
child->m_parent->remove(child);
child->m_parent = this;
if (-1 == offset)
offset = m_children.size();
m_children.insert(offset, child);
}
void BookmarkNode::remove(BookmarkNode *child)
{
child->m_parent = 0;
m_children.removeAll(child);
}
XbelReader::XbelReader()
{
}
BookmarkNode *XbelReader::read(const QString &fileName)
{
QFile file(fileName);
if (!file.exists()) {
return new BookmarkNode(BookmarkNode::Root);
}
file.open(QFile::ReadOnly);
return read(&file);
}
BookmarkNode *XbelReader::read(QIODevice *device)
{
BookmarkNode *root = new BookmarkNode(BookmarkNode::Root);
setDevice(device);
if (readNextStartElement()) {
QString version = attributes().value(QLatin1String("version")).toString();
if (name() == QLatin1String("xbel")
&& (version.isEmpty() || version == QLatin1String("1.0"))) {
readXBEL(root);
} else {
raiseError(QObject::tr("The file is not an XBEL version 1.0 file."));
}
}
return root;
}
void XbelReader::readXBEL(BookmarkNode *parent)
{
Q_ASSERT(isStartElement() && name() == QLatin1String("xbel"));
while (readNextStartElement()) {
if (name() == QLatin1String("folder"))
readFolder(parent);
else if (name() == QLatin1String("bookmark"))
readBookmarkNode(parent);
else if (name() == QLatin1String("separator"))
readSeparator(parent);
else
skipCurrentElement();
}
}
void XbelReader::readFolder(BookmarkNode *parent)
{
Q_ASSERT(isStartElement() && name() == QLatin1String("folder"));
BookmarkNode *folder = new BookmarkNode(BookmarkNode::Folder, parent);
folder->expanded = (attributes().value(QLatin1String("folded")) == QLatin1String("no"));
while (readNextStartElement()) {
if (name() == QLatin1String("title"))
readTitle(folder);
else if (name() == QLatin1String("desc"))
readDescription(folder);
else if (name() == QLatin1String("folder"))
readFolder(folder);
else if (name() == QLatin1String("bookmark"))
readBookmarkNode(folder);
else if (name() == QLatin1String("separator"))
readSeparator(folder);
else
skipCurrentElement();
}
}
void XbelReader::readTitle(BookmarkNode *parent)
{
Q_ASSERT(isStartElement() && name() == QLatin1String("title"));
parent->title = readElementText();
}
void XbelReader::readDescription(BookmarkNode *parent)
{
Q_ASSERT(isStartElement() && name() == QLatin1String("desc"));
parent->desc = readElementText();
}
void XbelReader::readSeparator(BookmarkNode *parent)
{
new BookmarkNode(BookmarkNode::Separator, parent);
// empty elements have a start and end element
readNext();
}
void XbelReader::readBookmarkNode(BookmarkNode *parent)
{
Q_ASSERT(isStartElement() && name() == QLatin1String("bookmark"));
BookmarkNode *bookmark = new BookmarkNode(BookmarkNode::Bookmark, parent);
bookmark->url = attributes().value(QLatin1String("href")).toString();
while (readNextStartElement()) {
if (name() == QLatin1String("title"))
readTitle(bookmark);
else if (name() == QLatin1String("desc"))
readDescription(bookmark);
else
skipCurrentElement();
}
if (bookmark->title.isEmpty())
bookmark->title = QObject::tr("Unknown title");
}
XbelWriter::XbelWriter()
{
setAutoFormatting(true);
}
bool XbelWriter::write(const QString &fileName, const BookmarkNode *root)
{
QFile file(fileName);
if (!root || !file.open(QFile::WriteOnly))
return false;
return write(&file, root);
}
bool XbelWriter::write(QIODevice *device, const BookmarkNode *root)
{
setDevice(device);
writeStartDocument();
writeDTD(QLatin1String("<!DOCTYPE xbel>"));
writeStartElement(QLatin1String("xbel"));
writeAttribute(QLatin1String("version"), QLatin1String("1.0"));
if (root->type() == BookmarkNode::Root) {
for (int i = 0; i < root->children().count(); ++i)
writeItem(root->children().at(i));
} else {
writeItem(root);
}
writeEndDocument();
return true;
}
void XbelWriter::writeItem(const BookmarkNode *parent)
{
switch (parent->type()) {
case BookmarkNode::Folder:
writeStartElement(QLatin1String("folder"));
writeAttribute(QLatin1String("folded"), parent->expanded ? QLatin1String("no") : QLatin1String("yes"));
writeTextElement(QLatin1String("title"), parent->title);
for (int i = 0; i < parent->children().count(); ++i)
writeItem(parent->children().at(i));
writeEndElement();
break;
case BookmarkNode::Bookmark:
writeStartElement(QLatin1String("bookmark"));
if (!parent->url.isEmpty())
writeAttribute(QLatin1String("href"), parent->url);
writeTextElement(QLatin1String("title"), parent->title);
if (!parent->desc.isEmpty())
writeAttribute(QLatin1String("desc"), parent->desc);
writeEndElement();
break;
case BookmarkNode::Separator:
writeEmptyElement(QLatin1String("separator"));
break;
default:
break;
}
}
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