1 files changed, 110 insertions, 0 deletions
diff --git a/lib/bookmarks/formats/xbel.cpp b/lib/bookmarks/formats/xbel.cpp
new file mode 100644
index 0000000..1cb5756
--- /dev/null
+++ b/lib/bookmarks/formats/xbel.cpp
@@ -0,0 +1,110 @@
+/*
+ * This file is part of smolbote. It's copyrighted by the contributors recorded
+ * in the version control history of the file, available from its original
+ * location: https://neueland.iserlohn-fortress.net/gitea/aqua/smolbote
+ *
+ * SPDX-License-Identifier: GPL-3.0
+ */
+
+#include "xbel.h"
+#include "model/bookmarkitem.h"
+#include <QXmlStreamReader>
+#include <QXmlStreamWriter>
+
+inline void readChildElements(QXmlStreamReader &reader, BookmarkItem *parent)
+{
+    while(reader.readNextStartElement()) {
+        if(reader.name() == "title") {
+            parent->setData(BookmarkItem::Title, reader.readElementText());
+
+        } else if(reader.name() == "tags") {
+            parent->setData(BookmarkItem::Tags, reader.readElementText().split(";"));
+
+        } else if(reader.name() == "description") {
+            parent->setData(BookmarkItem::Description, reader.readElementText());
+
+        } else if(reader.name() == "folder") {
+            auto *item = new BookmarkItem({}, BookmarkItem::Folder, parent);
+            item->setExpanded(!(reader.attributes().value("folded") == QLatin1Literal("yes")));
+            parent->appendChild(item);
+            readChildElements(reader, item);
+
+        } else if(reader.name() == "bookmark") {
+            auto *item = new BookmarkItem({}, BookmarkItem::Bookmark, parent);
+            item->setData(BookmarkItem::Href, reader.attributes().value("href").toString());
+            parent->appendChild(item);
+            readChildElements(reader, item);
+
+        } else {
+            reader.skipCurrentElement();
+        }
+    }
+}
+
+void Xbel::read(QIODevice *device, BookmarkItem *item)
+{
+    QXmlStreamReader qXmlStreamReader(device);
+
+    if(qXmlStreamReader.readNextStartElement()) {
+        if(!(qXmlStreamReader.name() == "xbel" && qXmlStreamReader.attributes().value("version") == "1.0")) {
+            return;
+        }
+
+        readChildElements(qXmlStreamReader, item);
+    }
+}
+
+inline void writeChildElements(QXmlStreamWriter &writer, const BookmarkItem *item)
+{
+    switch(item->type()) {
+    case BookmarkItem::Root:
+        for(int i = 0; i < item->childCount(); ++i) {
+            writeChildElements(writer, item->child(i));
+        }
+        break;
+
+    case BookmarkItem::Folder:
+        writer.writeStartElement("folder");
+        writer.writeAttribute("folded", !item->isExpanded() ? "yes" : "no");
+        writer.writeTextElement("title", item->data(BookmarkItem::Title).toString());
+        if(!item->data(BookmarkItem::Tags).isNull())
+            writer.writeTextElement("tags", item->data(BookmarkItem::Tags).toStringList().join(";"));
+        if(!item->data(BookmarkItem::Description).isNull())
+            writer.writeTextElement("description", item->data(BookmarkItem::Description).toString());
+
+        for(int i = 0; i < item->childCount(); ++i) {
+            writeChildElements(writer, item->child(i));
+        }
+
+        writer.writeEndElement();
+        break;
+
+    case BookmarkItem::Bookmark:
+        writer.writeStartElement("bookmark");
+        writer.writeAttribute("href", item->data(BookmarkItem::Href).toString());
+        writer.writeTextElement("title", item->data(BookmarkItem::Title).toString());
+        if(!item->data(BookmarkItem::Tags).isNull())
+            writer.writeTextElement("tags", item->data(BookmarkItem::Tags).toStringList().join(";"));
+        if(!item->data(BookmarkItem::Description).isNull())
+            writer.writeTextElement("description", item->data(BookmarkItem::Description).toString());
+
+        writer.writeEndElement();
+        break;
+    }
+}
+
+void Xbel::write(QIODevice *device, const BookmarkItem *item)
+{
+    QXmlStreamWriter xmlWriter(device);
+    xmlWriter.setAutoFormatting(true);
+
+    xmlWriter.writeStartDocument();
+    xmlWriter.writeDTD("<!DOCTYPE xbel>");
+
+    xmlWriter.writeStartElement("xbel");
+    xmlWriter.writeAttribute("version", "1.0");
+
+    writeChildElements(xmlWriter, item);
+
+    xmlWriter.writeEndDocument();
+}