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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 examples 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 #include <QtCore/QByteArray> |
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43 #include <QtCore/QDir> |
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44 #include <QtCore/QLibraryInfo> |
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45 #include <QtCore/QProcess> |
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46 |
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47 #include <QtGui/QMessageBox> |
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48 |
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49 #include "assistant.h" |
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50 |
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51 Assistant::Assistant() |
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52 : proc(0) |
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53 { |
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54 } |
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55 |
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56 //! [0] |
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57 Assistant::~Assistant() |
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58 { |
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59 if (proc && proc->state() == QProcess::Running) { |
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60 proc->terminate(); |
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61 proc->waitForFinished(3000); |
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62 } |
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63 delete proc; |
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64 } |
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65 //! [0] |
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66 |
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67 //! [1] |
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68 void Assistant::showDocumentation(const QString &page) |
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69 { |
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70 if (!startAssistant()) |
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71 return; |
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72 |
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73 QByteArray ba("SetSource "); |
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74 ba.append("qthelp://com.trolltech.examples.simpletextviewer/doc/"); |
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75 |
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76 proc->write(ba + page.toLocal8Bit() + '\0'); |
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77 } |
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78 //! [1] |
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79 |
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80 //! [2] |
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81 bool Assistant::startAssistant() |
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82 { |
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83 if (!proc) |
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84 proc = new QProcess(); |
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85 |
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86 if (proc->state() != QProcess::Running) { |
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87 QString app = QLibraryInfo::location(QLibraryInfo::BinariesPath) + QDir::separator(); |
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88 #if !defined(Q_OS_MAC) |
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89 app += QLatin1String("assistant"); |
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90 #else |
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91 app += QLatin1String("Assistant.app/Contents/MacOS/Assistant"); |
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92 #endif |
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93 |
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94 QStringList args; |
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95 args << QLatin1String("-collectionFile") |
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96 << QLibraryInfo::location(QLibraryInfo::ExamplesPath) |
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97 + QLatin1String("/help/simpletextviewer/documentation/simpletextviewer.qhc") |
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98 << QLatin1String("-enableRemoteControl"); |
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99 |
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100 proc->start(app, args); |
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101 |
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102 if (!proc->waitForStarted()) { |
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103 QMessageBox::critical(0, QObject::tr("Simple Text Viewer"), |
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104 QObject::tr("Unable to launch Qt Assistant (%1)").arg(app)); |
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105 return false; |
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106 } |
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107 } |
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108 return true; |
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109 } |
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110 //! [2] |