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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "xbelreader.h"
#include <QStyle>
#include <QTreeWidget>
using namespace Qt::StringLiterals;
//! [0]
XbelReader::XbelReader(QTreeWidget *treeWidget) : treeWidget(treeWidget)
{
QStyle *style = treeWidget->style();
folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirClosedIcon), QIcon::Normal,
QIcon::Off);
folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirOpenIcon), QIcon::Normal, QIcon::On);
bookmarkIcon.addPixmap(style->standardPixmap(QStyle::SP_FileIcon));
}
//! [0]
//! [1]
bool XbelReader::read(QIODevice *device)
{
xml.setDevice(device);
if (xml.readNextStartElement()) {
if (xml.name() == "xbel"_L1 && xml.attributes().value("version"_L1) == "1.0"_L1)
readXBEL();
else
xml.raiseError(QObject::tr("The file is not an XBEL version 1.0 file."));
}
return !xml.error();
}
//! [1]
//! [2]
QString XbelReader::errorString() const
{
return QObject::tr("%1\nLine %2, column %3")
.arg(xml.errorString())
.arg(xml.lineNumber())
.arg(xml.columnNumber());
}
//! [2]
//! [3]
void XbelReader::readXBEL()
{
Q_ASSERT(xml.isStartElement() && xml.name() == "xbel"_L1);
while (xml.readNextStartElement()) {
if (xml.name() == "folder"_L1)
readFolder(nullptr);
else if (xml.name() == "bookmark"_L1)
readBookmark(nullptr);
else if (xml.name() == "separator"_L1)
readSeparator(nullptr);
else
xml.skipCurrentElement();
}
}
//! [3]
//! [4]
void XbelReader::readBookmark(QTreeWidgetItem *item)
{
Q_ASSERT(xml.isStartElement() && xml.name() == "bookmark"_L1);
QTreeWidgetItem *bookmark = createChildItem(item);
bookmark->setFlags(bookmark->flags() | Qt::ItemIsEditable);
bookmark->setIcon(0, bookmarkIcon);
bookmark->setText(0, QObject::tr("Unknown title"));
bookmark->setText(1, xml.attributes().value("href"_L1).toString());
while (xml.readNextStartElement()) {
if (xml.name() == "title"_L1)
readTitle(bookmark);
else
xml.skipCurrentElement();
}
}
//! [4]
//! [5]
void XbelReader::readTitle(QTreeWidgetItem *item)
{
Q_ASSERT(xml.isStartElement() && xml.name() == "title"_L1);
item->setText(0, xml.readElementText());
}
//! [5]
//! [6]
void XbelReader::readSeparator(QTreeWidgetItem *item)
{
Q_ASSERT(xml.isStartElement() && xml.name() == "separator"_L1);
constexpr char16_t midDot = u'\xB7';
static const QString dots(30, midDot);
QTreeWidgetItem *separator = createChildItem(item);
separator->setFlags(item ? item->flags() & ~Qt::ItemIsSelectable : Qt::ItemFlags{});
separator->setText(0, dots);
xml.skipCurrentElement();
}
//! [6]
//! [7]
void XbelReader::readFolder(QTreeWidgetItem *item)
{
Q_ASSERT(xml.isStartElement() && xml.name() == "folder"_L1);
QTreeWidgetItem *folder = createChildItem(item);
bool folded = xml.attributes().value("folded"_L1) != "no"_L1;
folder->setExpanded(!folded);
while (xml.readNextStartElement()) {
if (xml.name() == "title"_L1)
readTitle(folder);
else if (xml.name() == "folder"_L1)
readFolder(folder);
else if (xml.name() == "bookmark"_L1)
readBookmark(folder);
else if (xml.name() == "separator"_L1)
readSeparator(folder);
else
xml.skipCurrentElement();
}
}
//! [7]
//! [8]
QTreeWidgetItem *XbelReader::createChildItem(QTreeWidgetItem *item)
{
QTreeWidgetItem *childItem = item ? new QTreeWidgetItem(item) : new QTreeWidgetItem(treeWidget);
childItem->setData(0, Qt::UserRole, xml.name().toString());
return childItem;
}
//! [8]
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