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-rw-r--r--lib/bookmarks/xbel.cpp193
1 files changed, 193 insertions, 0 deletions
diff --git a/lib/bookmarks/xbel.cpp b/lib/bookmarks/xbel.cpp
new file mode 100644
index 0000000..523ed99
--- /dev/null
+++ b/lib/bookmarks/xbel.cpp
@@ -0,0 +1,193 @@
+/*
+ * 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: git://neueland.iserlohn-fortress.net/smolbote.git
+ *
+ * SPDX-License-Identifier: GPL-3.0
+ */
+
+#include "xbel.h"
+#include <QFile>
+
+#include <QTreeWidgetItem>
+
+Xbel::Xbel(QTreeWidget *widget)
+{
+ treeWidget = widget;
+
+ QStyle *style = treeWidget->style();
+ folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirOpenIcon), QIcon::Normal, QIcon::On);
+ folderIcon.addPixmap(style->standardPixmap(QStyle::SP_DirClosedIcon), QIcon::Normal, QIcon::Off);
+ bookmarkIcon.addPixmap(style->standardPixmap(QStyle::SP_FileIcon));
+}
+
+bool Xbel::read(const QString &xbel)
+{
+ // no file specified
+ if(xbel.isEmpty()) {
+ return false;
+ }
+
+ QFile file(xbel);
+ if(!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+ // file cannot be opened
+ return false;
+ }
+
+ xmlReader.setDevice(&file);
+
+ if(xmlReader.readNextStartElement()) {
+ if(xmlReader.name() == "xbel" && xmlReader.attributes().value("version") == "1.0") {
+ qDebug("valid xbel");
+ readChildElements(0);
+ } else {
+ qDebug("invalid xbel");
+ return false;
+ }
+
+ }
+ return true;
+}
+
+bool Xbel::write(const QString &xbel)
+{
+ // no file specified
+ if(xbel.isEmpty()) {
+ return false;
+ }
+
+ QFile file(xbel);
+ if(!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
+ // file cannot be opened
+ qDebug("Cannot open xbel: %s", qUtf8Printable(xbel));
+ return false;
+ }
+
+ xmlWriter.setAutoFormatting(true);
+ xmlWriter.setDevice(&file);
+
+ xmlWriter.writeStartDocument();
+ xmlWriter.writeDTD("<!DOCTYPE xbel>");
+ xmlWriter.writeStartElement("xbel");
+ xmlWriter.writeAttribute("version", "1.0");
+
+ for(int i=0; i<treeWidget->topLevelItemCount(); i++) {
+ writeItem(treeWidget->topLevelItem(i));
+ }
+
+ xmlWriter.writeEndDocument();
+
+ file.flush();
+ file.close();
+ return true;
+}
+
+void Xbel::readChildElements(QTreeWidgetItem *parentItem)
+{
+ while(xmlReader.readNextStartElement()) {
+ if(xmlReader.name() == "title") {
+ readTitle(parentItem);
+ } else if(xmlReader.name() == "folder") {
+ QTreeWidgetItem *item = addFolder(parentItem);
+ item->setText(1, xmlReader.attributes().value("href").toString());
+ readChildElements(item);
+ } else if(xmlReader.name() == "bookmark") {
+ QTreeWidgetItem *item = addBookmark(parentItem);
+ item->setText(1, xmlReader.attributes().value("href").toString());
+ readChildElements(item);
+ } else if(xmlReader.name() == "separator") {
+ addSeparator(parentItem);
+ xmlReader.skipCurrentElement();
+ } else {
+ xmlReader.skipCurrentElement();
+ }
+ }
+}
+
+void Xbel::readTitle(QTreeWidgetItem *item)
+{
+ item->setText(0, xmlReader.readElementText());
+}
+
+QTreeWidgetItem *Xbel::addFolder(QTreeWidgetItem *parentItem)
+{
+ QTreeWidgetItem *folderItem = createChildItem(parentFolder(parentItem), "folder");
+ //folderItem->setExpanded(xmlReader.attributes().value("folded") != "no");
+ treeWidget->setItemExpanded(folderItem, xmlReader.attributes().value("folded") != "yes");
+ folderItem->setFlags(folderItem->flags() | Qt::ItemIsEditable);
+ folderItem->setIcon(0, folderIcon);
+
+ return folderItem;
+}
+
+QTreeWidgetItem *Xbel::addBookmark(QTreeWidgetItem *parentItem)
+{
+ QTreeWidgetItem *bookmarkItem = createChildItem(parentFolder(parentItem), "bookmark");
+ bookmarkItem->setFlags((bookmarkItem->flags() | Qt::ItemIsEditable) & ~Qt::ItemIsDropEnabled);
+ bookmarkItem->setIcon(0, bookmarkIcon);
+ bookmarkItem->setText(0, "Unknown Title");
+ bookmarkItem->setText(1, "Unknown Address");
+
+ return bookmarkItem;
+}
+
+void Xbel::addSeparator(QTreeWidgetItem *parentItem)
+{
+ QTreeWidgetItem *separatorItem = createChildItem(parentFolder(parentItem), "separator");
+ separatorItem->setFlags(separatorItem->flags() & ~Qt::ItemIsDropEnabled);
+ separatorItem->setText(0, "-----");
+}
+
+QTreeWidgetItem *Xbel::parentFolder(QTreeWidgetItem *item)
+{
+ QTreeWidgetItem *parentItem = item;
+
+ if(parentItem) {
+ while(parentItem->data(0, Qt::UserRole) != "folder") {
+ parentItem = parentItem->parent();
+ if(parentItem == 0) {
+ break;
+ }
+ }
+ }
+
+ return parentItem;
+}
+
+QTreeWidgetItem *Xbel::createChildItem(QTreeWidgetItem *item, const QString &type)
+{
+ QTreeWidgetItem *childItem;
+ if(item) {
+ childItem = new QTreeWidgetItem(item);
+ } else {
+ childItem = new QTreeWidgetItem(treeWidget);
+ }
+ childItem->setData(0, Qt::UserRole, type);
+ return childItem;
+}
+
+void Xbel::writeItem(QTreeWidgetItem *item)
+{
+ QString tagName = item->data(0, Qt::UserRole).toString();
+ if (tagName == "folder") {
+ xmlWriter.writeStartElement(tagName);
+ if(!item->text(1).isEmpty()) {
+ xmlWriter.writeAttribute("href", item->text(1));
+ }
+ xmlWriter.writeAttribute("folded", treeWidget->isItemExpanded(item) ? "no" : "yes");
+ xmlWriter.writeTextElement("title", item->text(0));
+ for (int i = 0; i < item->childCount(); ++i) {
+ writeItem(item->child(i));
+ }
+ xmlWriter.writeEndElement();
+ } else if (tagName == "bookmark") {
+ xmlWriter.writeStartElement(tagName);
+ if (!item->text(1).isEmpty()) {
+ xmlWriter.writeAttribute("href", item->text(1));
+ }
+ xmlWriter.writeTextElement("title", item->text(0));
+ xmlWriter.writeEndElement();
+ } else if (tagName == "separator") {
+ xmlWriter.writeEmptyElement(tagName);
+ }
+}