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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 #include "helpwindow.h" |
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43 #include "mainwindow.h" |
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44 #include "tabbedbrowser.h" |
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45 #include "helpdialog.h" |
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46 #include "config.h" |
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47 |
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48 #include <QApplication> |
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49 #include <QClipboard> |
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50 #include <QUrl> |
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51 #include <QMessageBox> |
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52 #include <QDir> |
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53 #include <QFile> |
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54 #include <QProcess> |
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55 #include <QAction> |
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56 #include <QFileInfo> |
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57 #include <QFont> |
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58 #include <QtEvents> |
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59 #include <QTextStream> |
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60 #include <QTextCodec> |
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61 #include <QStatusBar> |
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62 #include <QTextCursor> |
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63 #include <QTextObject> |
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64 #include <QTextLayout> |
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65 #include <QtDebug> |
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66 #include <qdesktopservices.h> |
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67 |
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68 #include <QtGui/QClipboard> |
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69 #include <QtGui/QApplication> |
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70 |
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71 #if defined(Q_OS_WIN32) |
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72 # include <windows.h> |
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73 #endif |
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74 |
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75 QT_BEGIN_NAMESPACE |
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76 |
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77 HelpWindow::HelpWindow(MainWindow *w, QWidget *parent) |
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78 : QTextBrowser(parent) |
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79 , mw(w) |
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80 , blockScroll(false) |
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81 , shiftPressed(false) |
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82 , newWindow(false) |
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83 { |
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84 FontSettings settings = Config::configuration()->fontSettings(); |
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85 setFont(settings.browserFont); |
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86 |
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87 connect(this, SIGNAL(copyAvailable(bool)), w, SLOT(copyAvailable(bool))); |
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88 } |
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89 |
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90 void HelpWindow::setSource(const QUrl &name) |
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91 { |
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92 if (name.isValid()) { |
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93 if (name.scheme() == QLatin1String("http") || name.scheme() == QLatin1String("ftp") |
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94 || name.scheme() == QLatin1String("mailto") || name.path().endsWith(QLatin1String("pdf"))) { |
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95 bool launched = QDesktopServices::openUrl(name); |
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96 if (!launched) { |
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97 QMessageBox::information(mw, tr("Help"), |
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98 tr("Unable to launch web browser.\n"), |
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99 tr("OK")); |
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100 } |
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101 return; |
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102 } |
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103 |
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104 QFileInfo fi(name.toLocalFile()); |
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105 if (name.scheme() == QLatin1String("file") && fi.exists()) { |
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106 if (newWindow || (shiftPressed && hasFocus())) { |
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107 shiftPressed = false; |
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108 mw->saveSettings(); |
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109 MainWindow *nmw = new MainWindow; |
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110 nmw->move(mw->geometry().topLeft()); |
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111 nmw->show(); |
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112 |
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113 if (mw->isMaximized()) |
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114 nmw->showMaximized(); |
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115 |
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116 nmw->setup(); |
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117 nmw->showLink(name.toString()); |
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118 } else { |
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119 QTextBrowser::setSource(name); |
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120 QTextBrowser::scrollToAnchor(name.fragment()); |
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121 } |
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122 return; |
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123 } |
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124 } |
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125 |
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126 mw->statusBar()->showMessage(tr("Failed to open link: '%1'").arg(name.toString()), 5000); |
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127 setHtml(tr("<div align=\"center\"><h1>The page could not be found</h1><br>" |
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128 "<h3>'%1'</h3></div>").arg(name.toString())); |
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129 mw->browsers()->updateTitle(tr("Error...")); |
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130 } |
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131 |
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132 void HelpWindow::openLinkInNewWindow() |
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133 { |
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134 if (lastAnchor.isEmpty()) |
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135 return; |
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136 newWindow = true; |
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137 setSource(lastAnchor); |
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138 newWindow = false; |
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139 } |
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140 |
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141 void HelpWindow::openLinkInNewWindow(const QString &link) |
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142 { |
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143 lastAnchor = link; |
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144 openLinkInNewWindow(); |
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145 } |
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146 |
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147 void HelpWindow::openLinkInNewPage() |
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148 { |
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149 if(lastAnchor.isEmpty()) |
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150 return; |
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151 mw->browsers()->newTab(lastAnchor); |
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152 lastAnchor.clear(); |
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153 } |
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154 |
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155 void HelpWindow::openLinkInNewPage(const QString &link) |
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156 { |
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157 lastAnchor = link; |
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158 openLinkInNewPage(); |
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159 } |
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160 |
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161 bool HelpWindow::hasAnchorAt(const QPoint& pos) |
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162 { |
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163 lastAnchor = anchorAt(pos); |
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164 if (lastAnchor.isEmpty()) |
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165 return false; |
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166 lastAnchor = source().resolved(lastAnchor).toString(); |
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167 if (lastAnchor.at(0) == QLatin1Char('#')) { |
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168 QString src = source().toString(); |
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169 int hsh = src.indexOf(QLatin1Char('#')); |
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170 lastAnchor = (hsh>=0 ? src.left(hsh) : src) + lastAnchor; |
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171 } |
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172 return true; |
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173 } |
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174 |
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175 void HelpWindow::contextMenuEvent(QContextMenuEvent *e) |
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176 { |
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177 QMenu menu(QLatin1String(""), 0); |
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178 |
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179 QUrl link; |
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180 QAction *copyAnchorAction = 0; |
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181 if (hasAnchorAt(e->pos())) { |
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182 link = anchorAt(e->pos()); |
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183 if (link.isRelative()) |
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184 link = source().resolved(link); |
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185 copyAnchorAction = menu.addAction(tr("Copy &Link Location")); |
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186 copyAnchorAction->setEnabled(!link.isEmpty() && link.isValid()); |
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187 |
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188 menu.addAction(tr("Open Link in New Tab"), |
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189 this, SLOT(openLinkInNewPage())); |
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190 menu.addAction(tr("Open Link in New Window\tShift+LMB"), |
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191 this, SLOT(openLinkInNewWindow())); |
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192 } |
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193 mw->setupPopupMenu(&menu); |
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194 QAction *action = menu.exec(e->globalPos()); |
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195 if (action == copyAnchorAction) |
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196 QApplication::clipboard()->setText(link.toString()); |
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197 } |
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198 |
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199 void HelpWindow::mouseReleaseEvent(QMouseEvent *e) |
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200 { |
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201 if (e->button() == Qt::XButton1) { |
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202 QTextBrowser::backward(); |
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203 return; |
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204 } |
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205 |
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206 if (e->button() == Qt::XButton2) { |
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207 QTextBrowser::forward(); |
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208 return; |
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209 } |
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210 |
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211 if (e->button() == Qt::MidButton && hasAnchorAt(e->pos())) { |
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212 openLinkInNewPage(); |
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213 return; |
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214 } |
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215 QTextBrowser::mouseReleaseEvent(e); |
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216 } |
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217 |
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218 void HelpWindow::blockScrolling(bool b) |
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219 { |
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220 blockScroll = b; |
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221 } |
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222 |
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223 void HelpWindow::ensureCursorVisible() |
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224 { |
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225 if (!blockScroll) |
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226 QTextBrowser::ensureCursorVisible(); |
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227 } |
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228 |
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229 void HelpWindow::mousePressEvent(QMouseEvent *e) |
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230 { |
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231 shiftPressed = e->modifiers() & Qt::ShiftModifier; |
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232 if (!(shiftPressed && hasAnchorAt(e->pos()))) |
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233 QTextBrowser::mousePressEvent(e); |
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234 } |
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235 |
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236 void HelpWindow::keyPressEvent(QKeyEvent *e) |
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237 { |
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238 shiftPressed = e->modifiers() & Qt::ShiftModifier; |
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239 QTextBrowser::keyPressEvent(e); |
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240 } |
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241 |
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242 bool HelpWindow::isKDERunning() const |
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243 { |
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244 return !qgetenv("KDE_FULL_SESSION").isEmpty(); |
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245 } |
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246 |
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247 QT_END_NAMESPACE |