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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 module toolbarsearch;
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42
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43 import searchlineedit;
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44
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45 import autosaver;
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46
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47 import QtCore.QSettings;
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48 import QtCore.QUrl;
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49
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50 import QtGui.QCompleter;
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51 import QtGui.QMenu;
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52 import QtGui.QStringListModel;
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53
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54 import QtWebKit/QWebSettings;
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55
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56 /*
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57 QT_BEGIN_NAMESPACE
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58 class QUrl;
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59 class QAction;
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60 class QStringListModel;
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61 QT_END_NAMESPACE
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62
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63 class AutoSaver;
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64 */
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65
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66 class ToolbarSearch : public SearchLineEdit
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67 {
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68 Q_OBJECT
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69
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70 signals:
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71 void search(const QUrl &url);
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72
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73 public:
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74
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75 /*
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76 ToolbarSearch is a very basic search widget that also contains a small history.
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77 Searches are turned into urls that use Google to perform search
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78 */
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79 this(QWidget *parent = null)
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80
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81 {
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82 super(parent)
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83 m_autosaver = new AutoSaver(this);
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84 m_maxSavedSearches = 10;
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85 m_stringListModel = new QStringListModel(this);
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86
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87 QMenu *m = menu();
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88 connect(m, SIGNAL(aboutToShow()), this, SLOT(aboutToShowMenu()));
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89 connect(m, SIGNAL(triggered(QAction*)), this, SLOT(triggeredMenuAction(QAction*)));
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90
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91 QCompleter *completer = new QCompleter(m_stringListModel, this);
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92 completer.setCompletionMode(QCompleter::InlineCompletion);
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93 lineEdit().setCompleter(completer);
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94
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95 connect(lineEdit(), SIGNAL(returnPressed()), SLOT(searchNow()));
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96 setInactiveText(tr("Google"));
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97 load();
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98 }
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99 ~this()
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100 {
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101 m_autosaver.saveIfNeccessary();
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102 }
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103
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104 public slots:
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105 void clear()
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106 {
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107 m_stringListModel.setStringList(QStringList());
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108 m_autosaver.changeOccurred();;
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109 }
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110
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111 void searchNow()
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112 {
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113 QString searchText = lineEdit().text();
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114 QStringList newList = m_stringListModel.stringList();
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115 if (newList.contains(searchText))
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116 newList.removeAt(newList.indexOf(searchText));
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117 newList.prepend(searchText);
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118 if (newList.size() >= m_maxSavedSearches)
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119 newList.removeLast();
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120
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121 QWebSettings *globalSettings = QWebSettings::globalSettings();
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122 if (!globalSettings.testAttribute(QWebSettings::PrivateBrowsingEnabled)) {
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123 m_stringListModel.setStringList(newList);
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124 m_autosaver.changeOccurred();
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125 }
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126
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127 QUrl url(QLatin1String("http://www.google.com/search"));
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128 url.addQueryItem(QLatin1String("q"), searchText);
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129 url.addQueryItem(QLatin1String("ie"), QLatin1String("UTF-8"));
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130 url.addQueryItem(QLatin1String("oe"), QLatin1String("UTF-8"));
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131 url.addQueryItem(QLatin1String("client"), QLatin1String("qtdemobrowser"));
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132 emit search(url);
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133 }
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134
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135 private slots:
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136 void save()
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137 {
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138 QSettings settings;
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139 settings.beginGroup(QLatin1String("toolbarsearch"));
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140 settings.setValue(QLatin1String("recentSearches"), m_stringListModel.stringList());
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141 settings.setValue(QLatin1String("maximumSaved"), m_maxSavedSearches);
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142 settings.endGroup();
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143 }
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144
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145
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146 void aboutToShowMenu()
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147 {
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148 lineEdit().selectAll();
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149 QMenu *m = menu();
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150 m.clear();
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151 QStringList list = m_stringListModel.stringList();
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152 if (list.isEmpty()) {
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153 m.addAction(tr("No Recent Searches"));
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154 return;
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155 }
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156
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157 QAction *recent = m.addAction(tr("Recent Searches"));
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158 recent.setEnabled(false);
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159 for (int i = 0; i < list.count(); ++i) {
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160 QString text = list.at(i);
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161 m.addAction(text).setData(text);
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162 }
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163 m.addSeparator();
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164 m.addAction(tr("Clear Recent Searches"), this, SLOT(clear()));
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165 }
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166
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167 void triggeredMenuAction(QAction *action)
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168 {
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169 QVariant v = action.data();
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170 if (v.canConvert<QString>()) {
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171 QString text = v.toString();
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172 lineEdit().setText(text);
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173 searchNow();
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174 }
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175 }
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176
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177 private:
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178 void load()
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179 {
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180 QSettings settings;
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181 settings.beginGroup(QLatin1String("toolbarsearch"));
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182 QStringList list = settings.value(QLatin1String("recentSearches")).toStringList();
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183 m_maxSavedSearches = settings.value(QLatin1String("maximumSaved"), m_maxSavedSearches).toInt();
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184 m_stringListModel.setStringList(list);
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185 settings.endGroup();
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186 }
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187
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188 AutoSaver *m_autosaver;
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189 int m_maxSavedSearches;
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190 QStringListModel *m_stringListModel;
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191 }
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