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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the Qt Assistant of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QHELP_GLOBAL_H
+#define QHELP_GLOBAL_H
+
+#include <QtCore/qglobal.h>
+#include <QtCore/QString>
+#include <QtCore/QObject>
+#include <QtCore/QRegExp>
+#include <QtCore/QMutexLocker>
+#include <QtGui/QTextDocument>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Help)
+
+#if !defined(QT_SHARED) && !defined(QT_DLL)
+# define QHELP_EXPORT
+#elif defined(QHELP_LIB)
+# define QHELP_EXPORT Q_DECL_EXPORT
+#else
+# define QHELP_EXPORT Q_DECL_IMPORT
+#endif
+
+class QHelpGlobal {
+public:
+ static QString uniquifyConnectionName(const QString &name, void *pointer)
+ {
+ static int counter = 0;
+ static QMutex mutex;
+
+ QMutexLocker locker(&mutex);
+ if (++counter > 1000)
+ counter = 0;
+
+ return QString::fromLatin1("%1-%2-%3")
+ .arg(name).arg(long(pointer)).arg(counter);
+ };
+
+ static QString documentTitle(const QString &content)
+ {
+ QString title = QObject::tr("Untitled");
+ if (!content.isEmpty()) {
+ int start = content.indexOf(QLatin1String("<title>"), 0, Qt::CaseInsensitive) + 7;
+ int end = content.indexOf(QLatin1String("</title>"), 0, Qt::CaseInsensitive);
+ if ((end - start) > 0) {
+ title = content.mid(start, end - start);
+ if (Qt::mightBeRichText(title) || title.contains(QLatin1Char('&'))) {
+ QTextDocument doc;
+ doc.setHtml(title);
+ title = doc.toPlainText();
+ }
+ }
+ }
+ return title;
+ };
+
+ static QString charsetFromData(const QByteArray &data)
+ {
+ QString content = QString::fromUtf8(data.constData(), data.size());
+ int start =
+ content.indexOf(QLatin1String("<meta"), 0, Qt::CaseInsensitive);
+ if (start > 0) {
+ int end;
+ QRegExp r(QLatin1String("charset=([^\"\\s]+)"));
+ while (start != -1) {
+ end = content.indexOf(QLatin1Char('>'), start) + 1;
+ const QString &meta = content.mid(start, end - start).toLower();
+ if (r.indexIn(meta) != -1)
+ return r.cap(1);
+ start = content.indexOf(QLatin1String("<meta"), end,
+ Qt::CaseInsensitive);
+ }
+ }
+ return QLatin1String("utf-8");
+ }
+};
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QHELP_GLOBAL_H