f339262217
Put readBookmark() first of the constituent parts, as it's the most intelligible (albeit currently undocumented) and gives some clue to the purpose of readTitle(), which is next. Task-number: QTBUG-111228 Change-Id: I91d3d6bf8adc3f3001c90274bb62a9da6bf05362 Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io> (cherry picked from commit b610c7aa89dd6224fbf58983ad8c2a391b2a559e)
139 lines
3.8 KiB
C++
139 lines
3.8 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "xbelreader.h"
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#include <QStyle>
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#include <QTreeWidget>
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using namespace Qt::StringLiterals;
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//! [0]
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XbelReader::XbelReader(QTreeWidget *treeWidget)
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: treeWidget(treeWidget)
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{
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QStyle *style = treeWidget->style();
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folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirClosedIcon),
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QIcon::Normal, QIcon::Off);
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folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirOpenIcon),
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QIcon::Normal, QIcon::On);
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bookmarkIcon.addPixmap(style->standardPixmap(QStyle::SP_FileIcon));
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}
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//! [0]
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//! [1]
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bool XbelReader::read(QIODevice *device)
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{
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xml.setDevice(device);
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if (xml.readNextStartElement()) {
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if (xml.name() == "xbel"_L1
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&& xml.attributes().value("version"_L1) == "1.0"_L1) {
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readXBEL();
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} else {
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xml.raiseError(QObject::tr("The file is not an XBEL version 1.0 file."));
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}
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}
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return !xml.error();
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}
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//! [1]
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//! [2]
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QString XbelReader::errorString() const
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{
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return QObject::tr("%1\nLine %2, column %3")
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.arg(xml.errorString())
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.arg(xml.lineNumber())
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.arg(xml.columnNumber());
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}
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//! [2]
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//! [3]
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void XbelReader::readXBEL()
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{
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Q_ASSERT(xml.isStartElement() && xml.name() == "xbel"_L1);
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while (xml.readNextStartElement()) {
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if (xml.name() == "folder"_L1)
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readFolder(nullptr);
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else if (xml.name() == "bookmark"_L1)
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readBookmark(nullptr);
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else if (xml.name() == "separator"_L1)
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readSeparator(nullptr);
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else
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xml.skipCurrentElement();
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}
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}
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//! [3]
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void XbelReader::readBookmark(QTreeWidgetItem *item)
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{
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Q_ASSERT(xml.isStartElement() && xml.name() == "bookmark"_L1);
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QTreeWidgetItem *bookmark = createChildItem(item);
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bookmark->setFlags(bookmark->flags() | Qt::ItemIsEditable);
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bookmark->setIcon(0, bookmarkIcon);
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bookmark->setText(0, QObject::tr("Unknown title"));
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bookmark->setText(1, xml.attributes().value("href"_L1).toString());
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while (xml.readNextStartElement()) {
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if (xml.name() == "title"_L1)
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readTitle(bookmark);
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else
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xml.skipCurrentElement();
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}
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}
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//! [4]
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void XbelReader::readTitle(QTreeWidgetItem *item)
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{
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Q_ASSERT(xml.isStartElement() && xml.name() == "title"_L1);
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item->setText(0, xml.readElementText());
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}
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//! [4]
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//! [5]
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void XbelReader::readSeparator(QTreeWidgetItem *item)
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{
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Q_ASSERT(xml.isStartElement() && xml.name() == "separator"_L1);
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constexpr char16_t midDot = u'\xB7';
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static const QString dots(30, midDot);
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QTreeWidgetItem *separator = createChildItem(item);
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separator->setFlags(item ? item->flags() & ~Qt::ItemIsSelectable : Qt::ItemFlags{});
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separator->setText(0, dots);
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xml.skipCurrentElement();
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}
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//! [5]
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void XbelReader::readFolder(QTreeWidgetItem *item)
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{
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Q_ASSERT(xml.isStartElement() && xml.name() == "folder"_L1);
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QTreeWidgetItem *folder = createChildItem(item);
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bool folded = xml.attributes().value("folded"_L1) != "no"_L1;
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folder->setExpanded(!folded);
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while (xml.readNextStartElement()) {
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if (xml.name() == "title"_L1)
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readTitle(folder);
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else if (xml.name() == "folder"_L1)
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readFolder(folder);
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else if (xml.name() == "bookmark"_L1)
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readBookmark(folder);
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else if (xml.name() == "separator"_L1)
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readSeparator(folder);
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else
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xml.skipCurrentElement();
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}
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}
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QTreeWidgetItem *XbelReader::createChildItem(QTreeWidgetItem *item)
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{
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QTreeWidgetItem *childItem = item ? new QTreeWidgetItem(item) : new QTreeWidgetItem(treeWidget);
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childItem->setData(0, Qt::UserRole, xml.name().toString());
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return childItem;
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}
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