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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the Qt Assistant of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 #ifndef QHELP_GLOBAL_H |
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43 #define QHELP_GLOBAL_H |
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44 |
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45 #include <QtCore/qglobal.h> |
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46 #include <QtCore/QString> |
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47 #include <QtCore/QObject> |
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48 #include <QtCore/QRegExp> |
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49 #include <QtCore/QMutexLocker> |
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50 #include <QtGui/QTextDocument> |
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51 |
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52 QT_BEGIN_HEADER |
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53 |
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54 QT_BEGIN_NAMESPACE |
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55 |
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56 QT_MODULE(Help) |
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57 |
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58 #if !defined(QT_SHARED) && !defined(QT_DLL) |
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59 # define QHELP_EXPORT |
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60 #elif defined(QHELP_LIB) |
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61 # define QHELP_EXPORT Q_DECL_EXPORT |
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62 #else |
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63 # define QHELP_EXPORT Q_DECL_IMPORT |
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64 #endif |
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65 |
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66 class QHelpGlobal { |
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67 public: |
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68 static QString uniquifyConnectionName(const QString &name, void *pointer) |
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69 { |
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70 static int counter = 0; |
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71 static QMutex mutex; |
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72 |
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73 QMutexLocker locker(&mutex); |
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74 if (++counter > 1000) |
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75 counter = 0; |
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76 |
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77 return QString::fromLatin1("%1-%2-%3") |
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78 .arg(name).arg(long(pointer)).arg(counter); |
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79 }; |
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80 |
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81 static QString documentTitle(const QString &content) |
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82 { |
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83 QString title = QObject::tr("Untitled"); |
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84 if (!content.isEmpty()) { |
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85 int start = content.indexOf(QLatin1String("<title>"), 0, Qt::CaseInsensitive) + 7; |
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86 int end = content.indexOf(QLatin1String("</title>"), 0, Qt::CaseInsensitive); |
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87 if ((end - start) > 0) { |
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88 title = content.mid(start, end - start); |
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89 if (Qt::mightBeRichText(title) || title.contains(QLatin1Char('&'))) { |
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90 QTextDocument doc; |
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91 doc.setHtml(title); |
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92 title = doc.toPlainText(); |
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93 } |
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94 } |
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95 } |
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96 return title; |
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97 }; |
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98 |
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99 static QString charsetFromData(const QByteArray &data) |
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100 { |
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101 QString content = QString::fromUtf8(data.constData(), data.size()); |
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102 int start = |
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103 content.indexOf(QLatin1String("<meta"), 0, Qt::CaseInsensitive); |
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104 if (start > 0) { |
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105 int end; |
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106 QRegExp r(QLatin1String("charset=([^\"\\s]+)")); |
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107 while (start != -1) { |
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108 end = content.indexOf(QLatin1Char('>'), start) + 1; |
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109 const QString &meta = content.mid(start, end - start).toLower(); |
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110 if (r.indexIn(meta) != -1) |
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111 return r.cap(1); |
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112 start = content.indexOf(QLatin1String("<meta"), end, |
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113 Qt::CaseInsensitive); |
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114 } |
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115 } |
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116 return QLatin1String("utf-8"); |
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117 } |
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118 }; |
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119 |
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120 QT_END_NAMESPACE |
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121 |
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122 QT_END_HEADER |
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123 |
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124 #endif // QHELP_GLOBAL_H |