Move the private and internal APIs of QDom to new files

qdom.cpp is too big, move the private classes and internal classes
to new files to make the maintenance and reviews for the upcoming
changes easier.

Task-number: QTBUG-76178
Change-Id: Ibe83bf9104e000d405a07653f4278083e2da648e
Reviewed-by: Kai Koehne <kai.koehne@qt.io>

1 files changed, 247 insertions, 0 deletions

diff --git a/src/xml/dom/qdomhelpers.cpp b/src/xml/dom/qdomhelpers.cpp
new file mode 100644
index 0000000000..74d2c8c124
--- /dev/null
+++ b/src/xml/dom/qdomhelpers.cpp
@@ -0,0 +1,247 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtXml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdomhelpers_p.h"
+#include "qdom_p.h"
+#include "private/qxml_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/**************************************************************
+ *
+ * QDomHandler
+ *
+ **************************************************************/
+
+QDomHandler::QDomHandler(QDomDocumentPrivate *adoc, QXmlSimpleReader *areader,
+                         bool namespaceProcessing)
+    : errorLine(0),
+      errorColumn(0),
+      doc(adoc),
+      node(adoc),
+      cdata(false),
+      nsProcessing(namespaceProcessing),
+      locator(nullptr),
+      reader(areader)
+{
+}
+
+QDomHandler::~QDomHandler() {}
+
+bool QDomHandler::endDocument()
+{
+    // ### is this really necessary? (rms)
+    if (node != doc)
+        return false;
+    return true;
+}
+
+bool QDomHandler::startDTD(const QString &name, const QString &publicId, const QString &systemId)
+{
+    doc->doctype()->name = name;
+    doc->doctype()->publicId = publicId;
+    doc->doctype()->systemId = systemId;
+    return true;
+}
+
+bool QDomHandler::startElement(const QString &nsURI, const QString &, const QString &qName,
+                               const QXmlAttributes &atts)
+{
+    // tag name
+    QDomNodePrivate *n;
+    if (nsProcessing) {
+        n = doc->createElementNS(nsURI, qName);
+    } else {
+        n = doc->createElement(qName);
+    }
+
+    if (!n)
+        return false;
+
+    n->setLocation(locator->lineNumber(), locator->columnNumber());
+
+    node->appendChild(n);
+    node = n;
+
+    // attributes
+    for (int i = 0; i < atts.length(); i++) {
+        if (nsProcessing) {
+            ((QDomElementPrivate *)node)->setAttributeNS(atts.uri(i), atts.qName(i), atts.value(i));
+        } else {
+            ((QDomElementPrivate *)node)->setAttribute(atts.qName(i), atts.value(i));
+        }
+    }
+
+    return true;
+}
+
+bool QDomHandler::endElement(const QString &, const QString &, const QString &)
+{
+    if (!node || node == doc)
+        return false;
+    node = node->parent();
+
+    return true;
+}
+
+bool QDomHandler::characters(const QString &ch)
+{
+    // No text as child of some document
+    if (node == doc)
+        return false;
+
+    QScopedPointer<QDomNodePrivate> n;
+    if (cdata) {
+        n.reset(doc->createCDATASection(ch));
+    } else if (!entityName.isEmpty()) {
+        QScopedPointer<QDomEntityPrivate> e(
+                new QDomEntityPrivate(doc, nullptr, entityName, QString(), QString(), QString()));
+        e->value = ch;
+        e->ref.deref();
+        doc->doctype()->appendChild(e.data());
+        e.take();
+        n.reset(doc->createEntityReference(entityName));
+    } else {
+        n.reset(doc->createTextNode(ch));
+    }
+    n->setLocation(locator->lineNumber(), locator->columnNumber());
+    node->appendChild(n.data());
+    n.take();
+
+    return true;
+}
+
+bool QDomHandler::processingInstruction(const QString &target, const QString &data)
+{
+    QDomNodePrivate *n;
+    n = doc->createProcessingInstruction(target, data);
+    if (n) {
+        n->setLocation(locator->lineNumber(), locator->columnNumber());
+        node->appendChild(n);
+        return true;
+    } else
+        return false;
+}
+
+bool QDomHandler::skippedEntity(const QString &name)
+{
+    // we can only handle inserting entity references into content
+    if (reader && !reader->d_ptr->skipped_entity_in_content)
+        return true;
+
+    QDomNodePrivate *n = doc->createEntityReference(name);
+    n->setLocation(locator->lineNumber(), locator->columnNumber());
+    node->appendChild(n);
+    return true;
+}
+
+bool QDomHandler::fatalError(const QXmlParseException &exception)
+{
+    errorMsg = exception.message();
+    errorLine = exception.lineNumber();
+    errorColumn = exception.columnNumber();
+    return QXmlDefaultHandler::fatalError(exception);
+}
+
+bool QDomHandler::startCDATA()
+{
+    cdata = true;
+    return true;
+}
+
+bool QDomHandler::endCDATA()
+{
+    cdata = false;
+    return true;
+}
+
+bool QDomHandler::startEntity(const QString &name)
+{
+    entityName = name;
+    return true;
+}
+
+bool QDomHandler::endEntity(const QString &)
+{
+    entityName.clear();
+    return true;
+}
+
+bool QDomHandler::comment(const QString &ch)
+{
+    QDomNodePrivate *n;
+    n = doc->createComment(ch);
+    n->setLocation(locator->lineNumber(), locator->columnNumber());
+    node->appendChild(n);
+    return true;
+}
+
+bool QDomHandler::unparsedEntityDecl(const QString &name, const QString &publicId,
+                                     const QString &systemId, const QString &notationName)
+{
+    QDomEntityPrivate *e =
+            new QDomEntityPrivate(doc, nullptr, name, publicId, systemId, notationName);
+    // keep the refcount balanced: appendChild() does a ref anyway.
+    e->ref.deref();
+    doc->doctype()->appendChild(e);
+    return true;
+}
+
+bool QDomHandler::externalEntityDecl(const QString &name, const QString &publicId,
+                                     const QString &systemId)
+{
+    return unparsedEntityDecl(name, publicId, systemId, QString());
+}
+
+bool QDomHandler::notationDecl(const QString &name, const QString &publicId,
+                               const QString &systemId)
+{
+    QDomNotationPrivate *n = new QDomNotationPrivate(doc, nullptr, name, publicId, systemId);
+    // keep the refcount balanced: appendChild() does a ref anyway.
+    n->ref.deref();
+    doc->doctype()->appendChild(n);
+    return true;
+}
+
+void QDomHandler::setDocumentLocator(QXmlLocator *locator)
+{
+    this->locator = locator;
+}
+
+QT_END_NAMESPACE