1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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6 | **
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7 | ** This file is part of the QtCore module of the Qt Toolkit.
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8 | **
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9 | ** $QT_BEGIN_LICENSE:LGPL$
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10 | ** Commercial Usage
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11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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12 | ** accordance with the Qt Commercial License Agreement provided with the
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13 | ** Software or, alternatively, in accordance with the terms contained in
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14 | ** a written agreement between you and Nokia.
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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 | ** 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 have questions regarding the use of this file, please contact
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37 | ** Nokia at [email protected].
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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 "qmimedata.h"
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43 |
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44 | #include "private/qobject_p.h"
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45 | #include "qurl.h"
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46 | #include "qstringlist.h"
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47 | #include "qtextcodec.h"
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48 |
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49 | QT_BEGIN_NAMESPACE
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50 |
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51 | struct QMimeDataStruct
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52 | {
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53 | QString format;
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54 | QVariant data;
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55 | };
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56 |
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57 | class QMimeDataPrivate : public QObjectPrivate
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58 | {
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59 | Q_DECLARE_PUBLIC(QMimeData)
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60 | public:
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61 | void removeData(const QString &format);
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62 | void setData(const QString &format, const QVariant &data);
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63 | QVariant getData(const QString &format) const;
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64 |
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65 | QVariant retrieveTypedData(const QString &format, QVariant::Type type) const;
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66 |
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67 | QList<QMimeDataStruct> dataList;
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68 | };
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69 |
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70 | void QMimeDataPrivate::removeData(const QString &format)
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71 | {
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72 | for (int i=0; i<dataList.size(); i++) {
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73 | if (dataList.at(i).format == format) {
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74 | dataList.removeAt(i);
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75 | return;
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76 | }
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77 | }
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78 | }
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79 |
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80 | void QMimeDataPrivate::setData(const QString &format, const QVariant &data)
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81 | {
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82 | // remove it first if the format is already here.
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83 | removeData(format);
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84 | QMimeDataStruct mimeData;
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85 | mimeData.format = format;
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86 | mimeData.data = data;
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87 | dataList += mimeData;
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88 | }
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89 |
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90 |
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91 | QVariant QMimeDataPrivate::getData(const QString &format) const
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92 | {
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93 | QVariant data;
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94 | for (int i=0; i<dataList.size(); i++) {
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95 | if (dataList.at(i).format == format) {
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96 | data = dataList.at(i).data;
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97 | break;
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98 | }
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99 | }
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100 | return data;
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101 | }
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102 |
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103 | QVariant QMimeDataPrivate::retrieveTypedData(const QString &format, QVariant::Type type) const
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104 | {
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105 | Q_Q(const QMimeData);
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106 |
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107 | QVariant data = q->retrieveData(format, type);
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108 | if (data.type() == type || !data.isValid())
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109 | return data;
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110 |
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111 | // provide more conversion possiblities than just what QVariant provides
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112 |
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113 | // URLs can be lists as well...
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114 | if ((type == QVariant::Url && data.type() == QVariant::List)
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115 | || (type == QVariant::List && data.type() == QVariant::Url))
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116 | return data;
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117 |
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118 | // images and pixmaps are interchangeable
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119 | if ((type == QVariant::Pixmap && data.type() == QVariant::Image)
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120 | || (type == QVariant::Image && data.type() == QVariant::Pixmap))
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121 | return data;
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122 |
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123 | if (data.type() == QVariant::ByteArray) {
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124 | // see if we can convert to the requested type
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125 | switch(type) {
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126 | #ifndef QT_NO_TEXTCODEC
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127 | case QVariant::String: {
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128 | const QByteArray ba = data.toByteArray();
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129 | QTextCodec *codec = QTextCodec::codecForName("utf-8");
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130 | if (format == QLatin1String("text/html"))
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131 | codec = QTextCodec::codecForHtml(ba, codec);
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132 | return codec->toUnicode(ba);
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133 | }
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134 | #endif // QT_NO_TEXTCODEC
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135 | case QVariant::Color: {
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136 | QVariant newData = data;
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137 | newData.convert(QVariant::Color);
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138 | return newData;
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139 | }
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140 | case QVariant::List: {
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141 | if (format != QLatin1String("text/uri-list"))
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142 | break;
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143 | // fall through
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144 | }
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145 | case QVariant::Url: {
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146 | QByteArray ba = data.toByteArray();
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147 | // Qt 3.x will send text/uri-list with a trailing
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148 | // null-terminator (that is *not* sent for any other
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149 | // text/* mime-type), so chop it off
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150 | if (ba.endsWith('\0'))
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151 | ba.chop(1);
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152 |
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153 | QList<QByteArray> urls = ba.split('\n');
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154 | QList<QVariant> list;
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155 | for (int i = 0; i < urls.size(); ++i) {
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156 | QByteArray ba = urls.at(i).trimmed();
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157 | if (!ba.isEmpty())
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158 | list.append(QUrl::fromEncoded(ba));
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159 | }
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160 | return list;
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161 | }
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162 | default:
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163 | break;
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164 | }
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165 |
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166 | } else if (type == QVariant::ByteArray) {
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167 |
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168 | // try to convert to bytearray
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169 | switch(data.type()) {
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170 | case QVariant::ByteArray:
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171 | case QVariant::Color:
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172 | return data.toByteArray();
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173 | break;
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174 | case QVariant::String:
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175 | return data.toString().toUtf8();
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176 | break;
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177 | case QVariant::Url:
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178 | return data.toUrl().toEncoded();
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179 | break;
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180 | case QVariant::List: {
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181 | // has to be list of URLs
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182 | QByteArray result;
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183 | QList<QVariant> list = data.toList();
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184 | for (int i = 0; i < list.size(); ++i) {
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185 | if (list.at(i).type() == QVariant::Url) {
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186 | result += list.at(i).toUrl().toEncoded();
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187 | result += "\r\n";
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188 | }
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189 | }
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190 | if (!result.isEmpty())
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191 | return result;
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192 | break;
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193 | }
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194 | default:
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195 | break;
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196 | }
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197 | }
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