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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 ** Contact: Qt Software Information (qt-info@nokia.com)
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5 **
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6 ** This file is part of the demonstration applications of the Qt Toolkit.
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7 **
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8 ** $QT_BEGIN_LICENSE:LGPL$
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9 ** Commercial Usage
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10 ** Licensees holding valid Qt Commercial licenses may use this file in
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11 ** accordance with the Qt Commercial License Agreement provided with the
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12 ** Software or, alternatively, in accordance with the terms contained in
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13 ** a written agreement between you and Nokia.
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14 **
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15 ** GNU Lesser General Public License Usage
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16 ** Alternatively, this file may be used under the terms of the GNU Lesser
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17 ** General Public License version 2.1 as published by the Free Software
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18 ** Foundation and appearing in the file LICENSE.LGPL included in the
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19 ** packaging of this file. Please review the following information to
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20 ** ensure the GNU Lesser General Public License version 2.1 requirements
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21 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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22 **
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23 ** In addition, as a special exception, Nokia gives you certain
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24 ** additional rights. These rights are described in the Nokia Qt LGPL
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25 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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26 ** package.
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27 **
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28 ** GNU General Public License Usage
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29 ** Alternatively, this file may be used under the terms of the GNU
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30 ** General Public License version 3.0 as published by the Free Software
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31 ** Foundation and appearing in the file LICENSE.GPL included in the
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32 ** packaging of this file. Please review the following information to
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33 ** ensure the GNU General Public License version 3.0 requirements will be
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34 ** met: http://www.gnu.org/copyleft/gpl.html.
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35 **
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36 ** If you are unsure which license is appropriate for your use, please
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37 ** contact the sales department at qt-sales@nokia.com.
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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 import QtWebKit.QWebView;
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43
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44 import browserapplication;
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45 import browsermainwindow;
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46 import cookiejar;
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47 import downloadmanager;
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48 import networkaccessmanager;
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49 import tabwidget;
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50 import webview;
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51
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52 import QtGui.QClipboard;
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53 import QtGui.QMenu;
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54 import QtGui.QMessageBox;
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55 import QtGui.QMouseEvent;
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56
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57 import QtWebKit.QWebHitTestResult;
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58
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59 import QtUiTools.QUiLoader;
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60
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61 import QtCore.QDebug;
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62 import QtCore.QBuffer;
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63
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64 /*
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65 QT_BEGIN_NAMESPACE
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66 class QAuthenticator;
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67 class QMouseEvent;
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68 class QNetworkProxy;
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69 class QNetworkReply;
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70 class QSslError;
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71 QT_END_NAMESPACE
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72
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73 class BrowserMainWindow;
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74 */
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75
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76 class WebPage : public QWebPage {
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77 Q_OBJECT
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78
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79 signals:
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80 void loadingUrl(const QUrl &url);
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81
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82 public:
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83 this(QObject *parent = null)
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84 {
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85 super(parent);
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86 m_keyboardModifiers = Qt.NoModifier;
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87 m_pressedButtons = Qt.NoButton;
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88 m_openInNewTab = false;
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89 setNetworkAccessManager(BrowserApplication::networkAccessManager());
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90 connect(this, SIGNAL(unsupportedContent(QNetworkReply *)),
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91 this, SLOT(handleUnsupportedContent(QNetworkReply *)));
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92 }
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93 BrowserMainWindow *mainWindow()
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94 {
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95 QObject *w = this.parent();
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96 while (w) {
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97 if (BrowserMainWindow *mw = qobject_cast<BrowserMainWindow*>(w))
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98 return mw;
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99 w = w.parent();
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100 }
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101 return BrowserApplication::instance().mainWindow();
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102 }
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103
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104 protected:
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105 bool acceptNavigationRequest(QWebFrame *frame, const QNetworkRequest &request, NavigationType type);
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106 {
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107 // ctrl open in new tab
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108 // ctrl-shift open in new tab and select
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109 // ctrl-alt open in new window
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110 if (type == QWebPage::NavigationTypeLinkClicked
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111 && (m_keyboardModifiers & Qt.ControlModifier
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112 || m_pressedButtons == Qt.MidButton)) {
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113 bool newWindow = (m_keyboardModifiers & Qt.AltModifier);
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114 WebView *webView;
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115 if (newWindow) {
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116 BrowserApplication::instance().newMainWindow();
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117 BrowserMainWindow *newMainWindow = BrowserApplication::instance().mainWindow();
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118 webView = newMainWindow.currentTab();
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119 newMainWindow.raise();
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120 newMainWindow.activateWindow();
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121 webView.setFocus();
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122 } else {
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123 bool selectNewTab = (m_keyboardModifiers & Qt.ShiftModifier);
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124 webView = mainWindow().tabWidget().newTab(selectNewTab);
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125 }
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126 webView.load(request);
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127 m_keyboardModifiers = Qt.NoModifier;
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128 m_pressedButtons = Qt.NoButton;
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129 return false;
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130 }
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131 if (frame == mainFrame()) {
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132 m_loadingUrl = request.url();
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133 emit loadingUrl(m_loadingUrl);
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134 }
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135 return QWebPage::acceptNavigationRequest(frame, request, type);
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136 }
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137
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138 QWebPage *createWindow(QWebPage::WebWindowType type)
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139 {
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140 Q_UNUSED(type);
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141 if (m_keyboardModifiers & Qt.ControlModifier || m_pressedButtons == Qt.MidButton)
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142 m_openInNewTab = true;
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143 if (m_openInNewTab) {
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144 m_openInNewTab = false;
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145 return mainWindow().tabWidget().newTab().page();
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146 }
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147 BrowserApplication::instance().newMainWindow();
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148 BrowserMainWindow *mainWindow = BrowserApplication::instance().mainWindow();
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149 return mainWindow.currentTab().page();
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150 }
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151
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152 version(QT_NO_UITOOLS) {} else
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153 {
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154 QObject *createPlugin(const QString &classId, const QUrl &url, const QStringList ¶mNames, const QStringList ¶mValues);
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155 {
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156 Q_UNUSED(url);
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157 Q_UNUSED(paramNames);
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158 Q_UNUSED(paramValues);
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159 QUiLoader loader;
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160 return loader.createWidget(classId, view());
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161 }
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162 }
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163
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164
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165
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166 private slots:
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167 void handleUnsupportedContent(QNetworkReply *reply)
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168 {
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169 if (reply.error() == QNetworkReply::NoError) {
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170 BrowserApplication::downloadManager().handleUnsupportedContent(reply);
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171 return;
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172 }
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173
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174 QFile file(QLatin1String(":/notfound.html"));
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175 bool isOpened = file.open(QIODevice::ReadOnly);
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176 Q_ASSERT(isOpened);
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177 QString title = tr("Error loading page: %1").arg(reply.url().toString());
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178 QString html = QString(QLatin1String(file.readAll()))
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179 .arg(title)
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180 .arg(reply.errorString())
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181 .arg(reply.url().toString());
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182
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183 QBuffer imageBuffer;
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184 imageBuffer.open(QBuffer::ReadWrite);
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185 QIcon icon = view().style().standardIcon(QStyle::SP_MessageBoxWarning, 0, view());
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186 QPixmap pixmap = icon.pixmap(QSize(32,32));
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187 if (pixmap.save(&imageBuffer, "PNG")) {
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188 html.replace(QLatin1String("IMAGE_BINARY_DATA_HERE"),
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189 QString(QLatin1String(imageBuffer.buffer().toBase64())));
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190 }
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191
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192 QList<QWebFrame*> frames;
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193 frames.append(mainFrame());
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194 while (!frames.isEmpty()) {
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195 QWebFrame *frame = frames.takeFirst();
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196 if (frame.url() == reply.url()) {
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197 frame.setHtml(html, reply.url());
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198 return;
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199 }
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200 QList<QWebFrame *> children = frame.childFrames();
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201 foreach(QWebFrame *frame, children)
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202 frames.append(frame);
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203 }
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204 if (m_loadingUrl == reply.url()) {
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205 mainFrame().setHtml(html, reply.url());
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206 }
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207 }
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208
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209 private:
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210 friend class WebView;
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211
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212 // set the webview mousepressedevent
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213 Qt.KeyboardModifiers m_keyboardModifiers;
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214 Qt.MouseButtons m_pressedButtons;
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215 bool m_openInNewTab;
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216 QUrl m_loadingUrl;
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217 };
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218
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219 class WebView : public QWebView {
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220 Q_OBJECT
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221
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222 public:
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223 WebView(QWidget *parent = null)
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224 : QWebView(parent)
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225 , m_progress(0)
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226 , m_page(new WebPage(this))
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227 {
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228 setPage(m_page);
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229 connect(page(), SIGNAL(statusBarMessage(const QString&)),
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230 SLOT(setStatusBarText(const QString&)));
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231 connect(this, SIGNAL(loadProgress(int)),
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232 this, SLOT(setProgress(int)));
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233 connect(this, SIGNAL(loadFinished(bool)),
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234 this, SLOT(loadFinished()));
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235 connect(page(), SIGNAL(loadingUrl(const QUrl&)),
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236 this, SIGNAL(urlChanged(const QUrl &)));
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237 connect(page(), SIGNAL(downloadRequested(const QNetworkRequest &)),
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238 this, SLOT(downloadRequested(const QNetworkRequest &)));
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239 page().setForwardUnsupportedContent(true);
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240
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241 }
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242
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243 WebPage *webPage() const { return m_page; }
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244
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245 void loadUrl(const QUrl &url)
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246 {
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247 m_initialUrl = url;
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248 load(url);
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249 }
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250
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251 QUrl url() const
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252 {
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253 QUrl url = QWebView::url();
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254 if (!url.isEmpty())
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255 return url;
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256
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257 return m_initialUrl;
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258 }
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259
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260 QString lastStatusBarText() const
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261 {
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262 return m_statusBarText;
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263 }
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264
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265 inline int progress() const { return m_progress; }
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266
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267 protected:
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268 void mousePressEvent(QMouseEvent *event);
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269 {
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270 m_page.m_pressedButtons = event.buttons();
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271 m_page.m_keyboardModifiers = event.modifiers();
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272 QWebView::mousePressEvent(event);
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273 }
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274
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275 void mouseReleaseEvent(QMouseEvent *event)
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276 {
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277 QWebView::mouseReleaseEvent(event);
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278 if (!event.isAccepted() && (m_page.m_pressedButtons & Qt.MidButton)) {
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279 QUrl url(QApplication::clipboard().text(QClipboard::Selection));
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280 if (!url.isEmpty() && url.isValid() && !url.scheme().isEmpty()) {
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281 setUrl(url);
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282 }
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283 }
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284 }
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285
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286 void contextMenuEvent(QContextMenuEvent *event)
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287 {
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288 QWebHitTestResult r = page().mainFrame().hitTestContent(event.pos());
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289 if (!r.linkUrl().isEmpty()) {
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290 QMenu menu(this);
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291 menu.addAction(pageAction(QWebPage::OpenLinkInNewWindow));
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292 menu.addAction(tr("Open in New Tab"), this, SLOT(openLinkInNewTab()));
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293 menu.addSeparator();
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294 menu.addAction(pageAction(QWebPage::DownloadLinkToDisk));
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295 // Add link to bookmarks...
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296 menu.addSeparator();
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297 menu.addAction(pageAction(QWebPage::CopyLinkToClipboard));
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298 if (page().settings().testAttribute(QWebSettings::DeveloperExtrasEnabled))
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299 menu.addAction(pageAction(QWebPage::InspectElement));
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300 menu.exec(mapToGlobal(event.pos()));
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301 return;
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302 }
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303 QWebView::contextMenuEvent(event);
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304 }
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305
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306 void wheelEvent(QWheelEvent *event)
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307 {
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308 if (QApplication::keyboardModifiers() & Qt.ControlModifier) {
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309 int numDegrees = event.delta() / 8;
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310 int numSteps = numDegrees / 15;
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311 setTextSizeMultiplier(textSizeMultiplier() + numSteps * 0.1);
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312 event.accept();
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313 return;
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314 }
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315 QWebView::wheelEvent(event);
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316 }
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317
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318
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319 private slots:
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320 void setProgress(int progress)
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321 {
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322 m_progress = progress;
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323 }
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324
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325 void loadFinished()
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326 {
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327 if (100 != m_progress) {
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328 qWarning() << "Recieved finished signal while progress is still:" << progress()
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329 << "Url:" << url();
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330 }
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331 m_progress = 0;
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332 }
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333
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334 void setStatusBarText(const QString &string)
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335 {
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336 m_statusBarText = string;
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337 }
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338
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339 void downloadRequested(const QNetworkRequest &request)
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340 {
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341 BrowserApplication::downloadManager().download(request);
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342 }
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343
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344 void openLinkInNewTab()
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345 {
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346 m_page.m_openInNewTab = true;
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347 pageAction(QWebPage::OpenLinkInNewWindow).trigger();
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348 }
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349 private:
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350 QString m_statusBarText;
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351 QUrl m_initialUrl;
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352 int m_progress;
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353 WebPage *m_page;
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354 }
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