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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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73
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41 module webview;
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42
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43 import qt.gui.QClipboard;
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44 import qt.gui.QMenu;
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45 import qt.gui.QMessageBox;
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46 import qt.gui.QMouseEvent;
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47
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48 import qt.core.QDebug;
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49 import qt.core.QBuffer;
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45
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50
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51 import QtWebKit.QWebView;
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73
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52 import QtWebKit.QWebHitTestResult;
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53 import QtUiTools.QUiLoader;
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45
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54
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55 import browserapplication;
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56 import browsermainwindow;
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57 import cookiejar;
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58 import downloadmanager;
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59 import networkaccessmanager;
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60 import tabwidget;
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61
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62
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73
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63 class WebPage : public QWebPage
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45
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64 {
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74
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65 mixin Signal!("loadingUrl", QUrl /*url*/);
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45
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66
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67 public:
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68
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73
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69 this(QObject parent = null)
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70 {
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71 super(parent);
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72 m_keyboardModifiers = Qt.NoModifier;
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73 m_pressedButtons = Qt.NoButton;
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74 m_openInNewTab = false;
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75 setNetworkAccessManager(BrowserApplication.networkAccessManager());
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76 this.unsupportedContent.connect(&this.handleUnsupportedContent);
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77 }
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78
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79 BrowserMainWindow mainWindow()
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80 {
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81 QObject w = this.parent();
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82 while (w) {
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77
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83 if (BrowserMainWindow mw = cast(BrowserMainWindow) w)
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73
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84 return mw;
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85 w = w.parent();
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86 }
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87 return BrowserApplication.instance().mainWindow();
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88 }
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89
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90 protected:
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73
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91
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74
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92 bool acceptNavigationRequest(QWebFrame frame, QNetworkRequest request, NavigationType type)
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73
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93 {
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94 // ctrl open in new tab
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95 // ctrl-shift open in new tab and select
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96 // ctrl-alt open in new window
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97 if (type == QWebPage.NavigationTypeLinkClicked
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98 && (m_keyboardModifiers & Qt.ControlModifier
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99 || m_pressedButtons == Qt.MidButton)) {
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100 bool newWindow = (m_keyboardModifiers & Qt.AltModifier);
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101 WebView webView;
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102 if (newWindow) {
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103 BrowserApplication.instance().newMainWindow();
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104 BrowserMainWindow newMainWindow = BrowserApplication.instance().mainWindow();
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105 webView = newMainWindow.currentTab();
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106 newMainWindow.raise();
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107 newMainWindow.activateWindow();
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108 webView.setFocus();
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109 } else {
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110 bool selectNewTab = (m_keyboardModifiers & Qt.ShiftModifier);
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111 webView = mainWindow().tabWidget().newTab(selectNewTab);
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112 }
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113 webView.load(request);
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114 m_keyboardModifiers = Qt.NoModifier;
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115 m_pressedButtons = Qt.NoButton;
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116 return false;
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117 }
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118 if (frame == mainFrame()) {
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119 m_loadingUrl = request.url();
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120 loadingUrl.emit(m_loadingUrl);
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73
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121 }
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122 return QWebPage.acceptNavigationRequest(frame, request, type);
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123 }
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124
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125 QWebPage createWindow(QWebPage.WebWindowType type)
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126 {
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127 if (m_keyboardModifiers & Qt.ControlModifier || m_pressedButtons == Qt.MidButton)
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128 m_openInNewTab = true;
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129 if (m_openInNewTab) {
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130 m_openInNewTab = false;
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131 return mainWindow().tabWidget().newTab().page();
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132 }
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133 BrowserApplication.instance().newMainWindow();
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134 BrowserMainWindow mainWindow = BrowserApplication.instance().mainWindow();
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135 return mainWindow.currentTab().page();
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136 }
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45
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137
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73
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138 version(QT_NO_UITOOLS) {} else
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139 {
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140 QObject createPlugin(string classId, QUrl url, string[] paramNames, string[] paramValues);
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73
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141 {
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77
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142 auto loader = new QUiLoader;
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73
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143 return loader.createWidget(classId, view());
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144 }
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145 }
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146
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147 private:
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148
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149 void handleUnsupportedContent(QNetworkReply reply)
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150 {
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151 if (reply.error() == QNetworkReply.NoError) {
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152 BrowserApplication.downloadManager().handleUnsupportedContent(reply);
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153 return;
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154 }
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155
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80
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156 auto file = new QFile(":/notfound.html");
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157 bool isOpened = file.open(QIODevice.ReadOnly);
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74
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158 assert(isOpened);
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77
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159 string title = Format(tr("Error loading page: {}"), reply.url().toString());
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80
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160 string html = Format(file.readAll(),
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161 title,
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162 reply.errorString(),
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163 reply.url().toString());
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164
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165 QBuffer imageBuffer;
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166 imageBuffer.open(QBuffer.ReadWrite);
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167 QIcon icon = view().style().standardIcon(QStyle.SP_MessageBoxWarning, 0, view());
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168 QPixmap pixmap = icon.pixmap(QSize(32,32));
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169 if (pixmap.save(&imageBuffer, "PNG")) {
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80
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170 html.replace("IMAGE_BINARY_DATA_HERE",
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171 imageBuffer.buffer().toBase64());
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73
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172 }
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173
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74
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174 QWebFrame[] frames;
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73
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175 frames.append(mainFrame());
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176 while (!frames.isEmpty()) {
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177 QWebFrame frame = frames.takeFirst();
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178 if (frame.url() == reply.url()) {
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179 frame.setHtml(html, reply.url());
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180 return;
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181 }
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74
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182 QWebFrame[] children = frame.childFrames();
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183 foreach(QWebFrame frame; children)
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73
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184 frames.append(frame);
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185 }
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186 if (m_loadingUrl == reply.url()) {
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187 mainFrame().setHtml(html, reply.url());
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188 }
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189 }
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190
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191 private:
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192
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193 // set the webview mousepressedevent
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194 Qt.KeyboardModifiers m_keyboardModifiers;
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195 Qt.MouseButtons m_pressedButtons;
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196 bool m_openInNewTab;
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197 QUrl m_loadingUrl;
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198 };
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199
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200 class WebView : public QWebView
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45
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201 {
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73
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202 public:
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203
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204 WebView(QWidget parent = null)
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205 {
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206 super(parent);
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207 m_progress = 0;
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208 m_page = new WebPage(this);
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209 setPage(m_page);
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210 page().statusBarMessage.connect(&setStatusBarText);
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211 this.loadProgress.connect(&this.setProgress);
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212 this.loadFinished.connect(&this.loadFinished);
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213 page().loadingUrl.connect(&this.urlChanged);
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214 page().downloadRequested.connect(&this.downloadRequested);
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215 page().setForwardUnsupportedContent(true);
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216 }
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217
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218 WebPage webPage() { return m_page; }
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219
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220 void loadUrl(QUrl url)
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221 {
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222 m_initialUrl = url;
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223 load(url);
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224 }
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225
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226 QUrl url()
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227 {
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228 QUrl url = QWebView.url();
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229 if (!url.isEmpty())
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230 return url;
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231 return m_initialUrl;
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232 }
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233
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234 string lastStatusBarText()
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235 {
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236 return m_statusBarText;
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237 }
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238
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239 int progress() const { return m_progress; }
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240
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241 protected:
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242
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243 void mousePressEvent(QMouseEvent event)
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73
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244 {
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245 m_page.m_pressedButtons = event.buttons();
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246 m_page.m_keyboardModifiers = event.modifiers();
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247 QWebView.mousePressEvent(event);
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248 }
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249
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250 void mouseReleaseEvent(QMouseEvent event)
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251 {
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252 QWebView.mouseReleaseEvent(event);
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253 if (!event.isAccepted() && (m_page.m_pressedButtons & Qt.MidButton)) {
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254 QUrl url(QApplication.clipboard().text(QClipboard.Selection));
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255 if (!url.isEmpty() && url.isValid() && !url.scheme().isEmpty()) {
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256 setUrl(url);
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257 }
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258 }
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259 }
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260
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261 void contextMenuEvent(QContextMenuEvent event)
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262 {
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263 QWebHitTestResult r = page().mainFrame().hitTestContent(event.pos());
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264 if (!r.linkUrl().isEmpty()) {
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265 QMenu menu(this);
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266 menu.addAction(pageAction(QWebPage.OpenLinkInNewWindow));
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267 menu.addAction(tr("Open in New Tab"), this, SLOT(openLinkInNewTab()));
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268 menu.addSeparator();
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269 menu.addAction(pageAction(QWebPage.DownloadLinkToDisk));
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270 // Add link to bookmarks...
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271 menu.addSeparator();
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272 menu.addAction(pageAction(QWebPage.CopyLinkToClipboard));
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273 if (page().settings().testAttribute(QWebSettings.DeveloperExtrasEnabled))
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274 menu.addAction(pageAction(QWebPage.InspectElement));
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275 menu.exec(mapToGlobal(event.pos()));
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276 return;
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277 }
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278 QWebView.contextMenuEvent(event);
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279 }
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280
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281 void wheelEvent(QWheelEvent event)
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282 {
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283 if (QApplication.keyboardModifiers() & Qt.ControlModifier) {
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284 int numDegrees = event.delta() / 8;
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285 int numSteps = numDegrees / 15;
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286 setTextSizeMultiplier(textSizeMultiplier() + numSteps * 0.1);
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287 event.accept();
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288 return;
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289 }
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290 QWebView.wheelEvent(event);
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291 }
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292
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293
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294 private:
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295
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296 void setProgress(int progress)
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297 {
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298 m_progress = progress;
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299 }
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300
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301 void loadFinished()
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302 {
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303 if (100 != m_progress) {
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304 qWarning() << "Received finished signal while progress is still:" << progress() << "Url:" << url();
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305 }
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306 m_progress = 0;
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307 }
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308
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309 void setStatusBarText(string str)
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73
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310 {
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311 m_statusBarText = str;
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312 }
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313
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314 void downloadRequested(QNetworkRequest request)
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315 {
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316 BrowserApplication.downloadManager().download(request);
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317 }
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318
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319 void openLinkInNewTab()
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320 {
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321 m_page.m_openInNewTab = true;
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322 pageAction(QWebPage.OpenLinkInNewWindow).trigger();
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323 }
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324
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325 private:
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326
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327 string m_statusBarText;
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73
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328 QUrl m_initialUrl;
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329 int m_progress;
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330 WebPage m_page;
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45
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331 }
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