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Diffstat (limited to 'src/xbel.cpp')
| -rw-r--r-- | src/xbel.cpp | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/src/xbel.cpp b/src/xbel.cpp new file mode 100644 index 00000000..3accd76d --- /dev/null +++ b/src/xbel.cpp @@ -0,0 +1,315 @@ +/**************************************************************************** +** +** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License versions 2.0 or 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 GNU General Public Licensing requirements will be met: +** http://www.fsf.org/licensing/licenses/info/GPLv2.html and +** http://www.gnu.org/copyleft/gpl.html. In addition, as a special +** exception, Nokia gives you certain additional rights. These rights +** are described in the Nokia Qt GPL Exception version 1.3, included in +** the file GPL_EXCEPTION.txt in this package. +** +** Qt for Windows(R) Licensees +** As a special exception, Nokia, as the sole copyright holder for Qt +** Designer, grants users of the Qt/Eclipse Integration plug-in the +** right for the Qt/Eclipse Integration to link to functionality +** provided by Qt Designer and its related libraries. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** +****************************************************************************/ + +#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); + while (!atEnd()) { + readNext(); + if (isStartElement()) { + 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 (!atEnd()) { + readNext(); + if (isEndElement()) + break; + + if (isStartElement()) { + if (name() == QLatin1String("folder")) + readFolder(parent); + else if (name() == QLatin1String("bookmark")) + readBookmarkNode(parent); + else if (name() == QLatin1String("separator")) + readSeparator(parent); + else + skipUnknownElement(); + } + } +} + +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 (!atEnd()) { + readNext(); + + if (isEndElement()) + break; + + if (isStartElement()) { + 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 + skipUnknownElement(); + } + } +} + +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 (!atEnd()) { + readNext(); + if (isEndElement()) + break; + + if (isStartElement()) { + if (name() == QLatin1String("title")) + readTitle(bookmark); + else if (name() == QLatin1String("desc")) + readDescription(bookmark); + else + skipUnknownElement(); + } + } + if (bookmark->title.isEmpty()) + bookmark->title = QObject::tr("Unknown title"); +} + +void XbelReader::skipUnknownElement() +{ + Q_ASSERT(isStartElement()); + + while (!atEnd()) { + readNext(); + + if (isEndElement()) + break; + + if (isStartElement()) + skipUnknownElement(); + } +} + + +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; + } +} |