1 files changed, 140 insertions, 0 deletions
diff --git a/examples/corelib/serialization/streambookmarks/xbelreader.cpp b/examples/corelib/serialization/streambookmarks/xbelreader.cpp
new file mode 100644
index 0000000000..c622cf6642
--- /dev/null
+++ b/examples/corelib/serialization/streambookmarks/xbelreader.cpp
@@ -0,0 +1,140 @@
+// 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]