1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** All rights reserved.
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5 | ** Contact: Nokia Corporation ([email protected])
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6 | **
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7 | ** This file is part of the QtGui 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 "qwsinputcontext_p.h"
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43 | #include "qinputcontext_p.h"
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44 | #include "qwsdisplay_qws.h"
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45 | #include "qwsevent_qws.h"
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46 | #include "private/qwscommand_qws_p.h"
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47 | #include "qwindowsystem_qws.h"
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48 | #include "qevent.h"
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49 | #include "qtextformat.h"
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50 |
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51 | #include <qbuffer.h>
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52 |
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53 | #include <qdebug.h>
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54 |
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55 | #ifndef QT_NO_QWS_INPUTMETHODS
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56 |
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57 | QT_BEGIN_NAMESPACE
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58 |
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59 | static QWidget* activeWidget = 0;
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60 |
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61 | //#define EXTRA_DEBUG
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62 |
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63 | QWSInputContext::QWSInputContext(QObject *parent)
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64 | :QInputContext(parent)
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65 | {
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66 | }
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67 |
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68 | void QWSInputContext::reset()
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69 | {
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70 | QPaintDevice::qwsDisplay()->resetIM();
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71 | }
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72 |
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73 |
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74 | void QWSInputContext::setFocusWidget( QWidget *w )
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75 | {
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76 | QWidget *oldFocus = focusWidget();
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77 | if (oldFocus == w)
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78 | return;
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79 |
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80 | if (w) {
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81 | QWSInputContext::updateImeStatus(w, true);
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82 | } else {
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83 | if (oldFocus)
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84 | QWSInputContext::updateImeStatus(oldFocus, false);
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85 | }
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86 |
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87 | if (oldFocus) {
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88 | QWidget *tlw = oldFocus->window();
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89 | int winid = tlw->internalWinId();
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90 |
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91 | int widgetid = oldFocus->internalWinId();
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92 | QPaintDevice::qwsDisplay()->sendIMUpdate(QWSInputMethod::FocusOut, winid, widgetid);
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93 | }
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94 |
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95 | QInputContext::setFocusWidget(w);
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96 |
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97 | if (!w)
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98 | return;
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99 |
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100 | QWidget *tlw = w->window();
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101 | int winid = tlw->winId();
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102 |
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103 | int widgetid = w->winId();
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104 | QPaintDevice::qwsDisplay()->sendIMUpdate(QWSInputMethod::FocusIn, winid, widgetid);
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105 |
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106 | //setfocus ???
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107 |
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108 | update();
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109 | }
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110 |
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111 |
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112 | void QWSInputContext::widgetDestroyed(QWidget *w)
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113 | {
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114 | if (w == QT_PREPEND_NAMESPACE(activeWidget))
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115 | QT_PREPEND_NAMESPACE(activeWidget) = 0;
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116 | QInputContext::widgetDestroyed(w);
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117 | }
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118 |
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119 | void QWSInputContext::update()
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120 | {
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121 | QWidget *w = focusWidget();
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122 | if (!w)
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123 | return;
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124 |
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125 | QWidget *tlw = w->window();
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126 | int winid = tlw->winId();
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127 |
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128 | int widgetid = w->winId();
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129 | QPaintDevice::qwsDisplay()->sendIMUpdate(QWSInputMethod::Update, winid, widgetid);
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130 |
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131 | }
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132 |
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133 | void QWSInputContext::mouseHandler( int x, QMouseEvent *event)
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134 | {
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135 | if (event->type() == QEvent::MouseButtonPress || event->type() == QEvent::MouseButtonRelease)
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136 | QPaintDevice::qwsDisplay()->sendIMMouseEvent( x, event->type() == QEvent::MouseButtonPress );
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137 | }
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138 |
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139 | QWidget *QWSInputContext::activeWidget()
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140 | {
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141 | return QT_PREPEND_NAMESPACE(activeWidget);
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142 | }
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143 |
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144 |
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145 | bool QWSInputContext::isComposing() const
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146 | {
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147 | return QT_PREPEND_NAMESPACE(activeWidget) != 0;
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148 | }
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149 |
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150 | bool QWSInputContext::translateIMQueryEvent(QWidget *w, const QWSIMQueryEvent *e)
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151 | {
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152 | Qt::InputMethodQuery type = static_cast<Qt::InputMethodQuery>(e->simpleData.property);
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153 | QVariant result = w->inputMethodQuery(type);
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154 | QWidget *tlw = w->window();
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155 | int winId = tlw->winId();
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156 |
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157 | if ( type == Qt::ImMicroFocus ) {
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158 | // translate to relative to tlw
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159 | QRect mf = result.toRect();
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160 | mf.moveTopLeft(w->mapTo(tlw,mf.topLeft()));
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161 | result = mf;
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162 | }
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163 |
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164 | QPaintDevice::qwsDisplay()->sendIMResponse(winId, e->simpleData.property, result);
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165 |
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166 | return false;
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167 | }
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168 |
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169 | bool QWSInputContext::translateIMInitEvent(const QWSIMInitEvent *e)
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170 | {
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171 | Q_UNUSED(e);
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172 | qDebug("### QWSInputContext::translateIMInitEvent not implemented ###");
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173 | return false;
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174 | }
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175 |
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176 | bool QWSInputContext::translateIMEvent(QWidget *w, const QWSIMEvent *e)
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177 | {
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178 | QDataStream stream(e->streamingData);
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179 | QString preedit;
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180 | QString commit;
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181 |
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182 | stream >> preedit;
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183 | stream >> commit;
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184 |
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185 | if (preedit.isEmpty() && QT_PREPEND_NAMESPACE(activeWidget))
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186 | w = QT_PREPEND_NAMESPACE(activeWidget);
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187 |
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188 | QInputContext *qic = w->inputContext();
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189 | if (!qic)
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190 | return false;
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191 |
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192 | QList<QInputMethodEvent::Attribute> attrs;
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193 |
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194 |
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195 | while (!stream.atEnd()) {
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196 | int type = -1;
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197 | int start = -1;
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198 | int length = -1;
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199 | QVariant data;
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200 | stream >> type >> start >> length >> data;
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201 | if (stream.status() != QDataStream::Ok) {
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202 | qWarning("corrupted QWSIMEvent");
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203 | //qic->reset(); //???
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204 | return false;
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205 | }
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206 | if (type == QInputMethodEvent::TextFormat)
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207 | data = qic->standardFormat(static_cast<QInputContext::StandardFormat>(data.toInt()));
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208 | attrs << QInputMethodEvent::Attribute(static_cast<QInputMethodEvent::AttributeType>(type), start, length, data);
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209 | }
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210 | #ifdef EXTRA_DEBUG
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211 | qDebug() << "preedit" << preedit << "len" << preedit.length() <<"commit" << commit << "len" << commit.length()
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212 | << "n attr" << attrs.count();
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213 | #endif
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214 |
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215 | if (preedit.isEmpty())
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216 | QT_PREPEND_NAMESPACE(activeWidget) = 0;
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217 | else
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218 | QT_PREPEND_NAMESPACE(activeWidget) = w;
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219 |
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220 |
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221 | QInputMethodEvent ime(preedit, attrs);
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222 | if (!commit.isEmpty() || e->simpleData.replaceLength > 0)
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223 | ime.setCommitString(commit, e->simpleData.replaceFrom, e->simpleData.replaceLength);
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224 |
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225 |
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226 | extern bool qt_sendSpontaneousEvent(QObject *, QEvent *); //qapplication_qws.cpp
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227 | qt_sendSpontaneousEvent(w, &ime);
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228 |
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229 | return true;
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230 | }
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231 |
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232 | Q_GUI_EXPORT void (*qt_qws_inputMethodStatusChanged)(QWidget*) = 0;
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233 |
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234 | void QWSInputContext::updateImeStatus(QWidget *w, bool hasFocus)
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235 | {
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236 | Q_UNUSED(hasFocus);
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237 |
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238 | if (!w || !qt_qws_inputMethodStatusChanged)
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239 | return;
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240 | qt_qws_inputMethodStatusChanged(w);
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241 | }
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242 |
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243 |
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244 | QT_END_NAMESPACE
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245 |
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246 | #endif // QT_NO_QWS_INPUTMETHODS
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