1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 #include <QTimer> |
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19 #include <QApplication> |
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20 #include <QGraphicsSceneEvent> |
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21 #include <hblabel.h> |
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22 #include <hbdialog.h> |
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23 #include <hbinstantfeedback.h> |
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24 #include <QGraphicsRectItem> |
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25 #include <QColor> |
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26 |
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27 #include "cxutils.h" |
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28 #include "cxeengine.h" |
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29 #include "cxuienums.h" |
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30 #include "cxuistandby.h" |
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31 #include "cxuidocumentloader.h" |
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32 #include "cxeviewfindercontrol.h" |
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33 #include "cxuicapturekeyhandler.h" |
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34 #include "cxestillcapturecontrol.h" |
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35 #include "cxevideocapturecontrol.h" |
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36 |
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37 |
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38 |
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39 /*! |
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40 * Constructor |
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41 */ |
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42 CxuiStandby::CxuiStandby(CxuiCaptureKeyHandler &keyHandler,CxuiDocumentLoader *documentLoader, CxeEngine *engine) |
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43 : mKeyHandler(keyHandler), |
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44 mDocumentLoader(documentLoader), |
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45 mEngine(engine), |
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46 mStandbyPopup(NULL), |
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47 mStandbyDialogVisible(false), |
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48 mAllowDismiss(true) |
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49 { |
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50 CX_DEBUG_ENTER_FUNCTION(); |
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51 CX_ASSERT_ALWAYS(engine); |
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52 |
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53 // initialize standby timer |
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54 mStandbyTimer = new QTimer(this); |
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55 |
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56 // install event filter for application wide events |
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57 QCoreApplication::instance()->installEventFilter(this); |
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58 |
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59 CX_ASSERT_ALWAYS(mStandbyTimer); |
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60 connect(mStandbyTimer, SIGNAL(timeout()), this, SLOT(enterStandby())); |
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61 mStandbyTimer->setSingleShot(true); |
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62 |
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63 CX_DEBUG_EXIT_FUNCTION(); |
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64 } |
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65 |
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66 |
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67 |
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68 /*! |
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69 * Destructor |
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70 */ |
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71 CxuiStandby::~CxuiStandby() |
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72 { |
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73 CX_DEBUG_IN_FUNCTION(); |
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74 // remove the event filter |
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75 QCoreApplication::instance()->removeEventFilter(this); |
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76 // stop standby timer |
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77 stopTimer(); |
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78 } |
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79 |
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80 |
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81 /*! |
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82 * Allow dismissing standby mode with AF or capture key? |
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83 * @param allow Is dismissing allowed. |
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84 */ |
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85 void CxuiStandby::allowDismiss(bool allow) |
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86 { |
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87 CX_DEBUG_ENTER_FUNCTION(); |
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88 mAllowDismiss = allow; |
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89 if (allow) { |
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90 if (mStandbyDialogVisible) { |
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91 // Reconnect the close signals if dialog is visible |
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92 connect(&mKeyHandler, SIGNAL(autofocusKeyPressed()), mStandbyPopup, SLOT(close()), Qt::UniqueConnection); |
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93 connect(&mKeyHandler, SIGNAL(captureKeyPressed()), mStandbyPopup, SLOT(close()), Qt::UniqueConnection); |
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94 } |
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95 } else { |
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96 disconnect(&mKeyHandler, SIGNAL(autofocusKeyPressed()), mStandbyPopup, SLOT(close())); |
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97 disconnect(&mKeyHandler, SIGNAL(captureKeyPressed()), mStandbyPopup, SLOT(close())); |
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98 } |
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99 |
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100 CX_DEBUG_EXIT_FUNCTION(); |
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101 } |
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102 |
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103 |
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104 /*! |
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105 * Is standby mode active? |
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106 * @return True, if standby mode is active, false if not. |
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107 */ |
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108 bool CxuiStandby::isActive() const |
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109 { |
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110 return mStandbyDialogVisible; |
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111 } |
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112 |
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113 /*! |
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114 * stops standby timer |
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115 */ |
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116 void CxuiStandby::stopTimer() |
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117 { |
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118 if(mStandbyTimer) { |
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119 mStandbyTimer->stop(); |
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120 } |
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121 } |
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122 |
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123 /*! |
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124 * starts standby timer |
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125 */ |
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126 void CxuiStandby::startTimer() |
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127 { |
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128 if(mStandbyTimer) { |
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129 mStandbyTimer->start(CXUI_STANDBY_CAMERA_TIMEOUT); |
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130 } |
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131 } |
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132 |
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133 /*! |
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134 * Handles mouse press events |
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135 * returns if mouse key press is consumed. |
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136 * \param event event to be handled |
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137 * \return boolean to indicate whether the event was handled or not |
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138 */ |
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139 bool CxuiStandby::handleMouseEvent(QEvent *event) |
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140 { |
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141 bool keyHandled = false; |
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142 |
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143 // close the dialog if it's visible |
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144 if (mStandbyDialogVisible && mStandbyPopup) { |
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145 HbInstantFeedback feedback(HbFeedback::BasicItem); |
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146 switch (event->type()) { |
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147 case QEvent::GraphicsSceneMousePress: |
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148 feedback.play(); |
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149 break; |
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150 case QEvent::GraphicsSceneMouseRelease: |
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151 if (mAllowDismiss) { |
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152 CX_DEBUG(( "closing the popup mStandbyDialogVisible = : %d", mStandbyDialogVisible )); |
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153 // todo: sound disabling doesn't work in orbit yet so don't do feedback on release |
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154 // needs to be enabled when orbit support is done |
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155 //feedback.setModalities(HbFeedback::Tactile); |
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156 //feedback.play(); |
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157 exitStandby(); |
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158 } |
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159 break; |
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160 default: |
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161 break; |
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162 } |
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163 // eat all mouse events when standby is active |
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164 keyHandled = true; |
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165 } else if (mStandbyTimer && mStandbyTimer->isActive()) { |
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166 // restart the timer only if it's running |
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167 startTimer(); |
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168 } |
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169 |
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170 return keyHandled; |
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171 } |
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172 |
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173 |
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174 /*! |
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175 * switching to standby. |
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176 */ |
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177 void CxuiStandby::enterStandby() |
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178 { |
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179 CX_DEBUG_ENTER_FUNCTION(); |
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180 |
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181 if (proceedToStandy()) { |
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182 |
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183 // signal for ui classes to prepare for standby |
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184 emit aboutToEnterStandby(); |
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185 |
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186 mStandbyDialogVisible = true; |
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187 |
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188 if (mStandbyPopup == NULL) { |
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189 CX_DEBUG(("Loading standby DocML")); |
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190 bool ok = false; |
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191 // Use document loader to create popup |
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192 mDocumentLoader->load(CxUiLayout::STANDBY_POPUP_XML, &ok); |
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193 CX_DEBUG(("standby load ok=%d", ok)); |
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194 mStandbyPopup = qobject_cast<HbDialog*>(mDocumentLoader->findWidget(CxUiLayout::STANDBY_POPUP)); |
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195 CX_ASSERT_ALWAYS(mStandbyPopup); |
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196 mStandbyPopup->setTimeout(HbDialog::NoTimeout); |
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197 mStandbyPopup->setBackgroundFaded(false); |
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198 mStandbyPopup->setPreferredPos(QPointF(0,0)); |
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199 // color of standby text is set in the code. It cannot be done in docml |
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200 HbLabel* label = qobject_cast<HbLabel*>(mDocumentLoader->findWidget(CxUiLayout::STANDBY_TEXT_WIDGET)); |
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201 label->setTextColor(Qt::white); |
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202 |
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203 // connecting "abouttoclose" signal to dismissStandby |
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204 connect(mStandbyPopup, SIGNAL(aboutToClose()), this, SLOT(dismissStandby())); |
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205 |
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206 // HbDialog's default background item is replaced with black rectangle |
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207 QGraphicsRectItem *backgroundItem = new QGraphicsRectItem(); |
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208 QBrush blackBrush = QBrush(Qt::black); |
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209 backgroundItem->setBrush(blackBrush); |
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210 QGraphicsItem *origBgItem = mStandbyPopup->backgroundItem(); |
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211 backgroundItem->setRect(origBgItem->boundingRect()); |
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212 mStandbyPopup->setBackgroundItem(backgroundItem); |
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213 |
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214 } |
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215 |
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216 CX_ASSERT_ALWAYS(mStandbyPopup); |
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217 |
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218 mStandbyPopup->show(); |
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219 // connecting half press or full press key signal to dismiss standby |
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220 connect(&mKeyHandler, SIGNAL(autofocusKeyPressed()), mStandbyPopup, SLOT(close()), Qt::UniqueConnection); |
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221 connect(&mKeyHandler, SIGNAL(captureKeyPressed()), mStandbyPopup, SLOT(close()), Qt::UniqueConnection); |
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222 } |
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223 |
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224 CX_DEBUG_EXIT_FUNCTION(); |
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225 } |
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226 |
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227 /*! |
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228 * Close the standby dialog. |
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229 */ |
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230 void CxuiStandby::exitStandby() |
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231 { |
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232 CX_DEBUG_ENTER_FUNCTION(); |
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233 |
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234 if (mAllowDismiss && mStandbyDialogVisible && mStandbyPopup) { |
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235 mStandbyPopup->close(); |
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236 } |
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237 |
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238 CX_DEBUG_EXIT_FUNCTION(); |
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239 } |
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240 |
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241 |
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242 /*! |
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243 * dismisses standby |
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244 */ |
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245 void CxuiStandby::dismissStandby() |
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246 { |
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247 CX_DEBUG_ENTER_FUNCTION(); |
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248 |
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249 if(mStandbyDialogVisible) { |
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250 // stop the standby timer and close the pop-up |
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251 mStandbyDialogVisible = false; |
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252 //restart timer |
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253 startTimer(); |
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254 // signal for ui classes to prepare for standby exit |
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255 emit aboutToExitStandby(); |
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256 } |
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257 |
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258 CX_DEBUG_EXIT_FUNCTION(); |
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259 } |
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260 |
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261 |
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262 |
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263 /*! |
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264 * checks if we can switch to standby |
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265 */ |
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266 bool CxuiStandby::proceedToStandy() |
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267 { |
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268 CX_DEBUG_ENTER_FUNCTION(); |
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269 CX_ASSERT_ALWAYS(mEngine); |
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270 |
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271 bool ok = false; |
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272 if (!mStandbyDialogVisible) { |
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273 CX_DEBUG(("show standby dialog")); |
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274 ok = true; |
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275 } |
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276 |
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277 CX_DEBUG(( "CxuiStandby::proceedToStandy proceedToStandy: %d", ok )); |
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278 |
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279 return ok; |
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280 } |
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281 |
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282 |
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283 |
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284 /*! |
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285 * Event filter which filters application wide mouse events. |
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286 */ |
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287 bool CxuiStandby::eventFilter(QObject *object, QEvent *event) |
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288 { |
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289 Q_UNUSED(object); |
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290 |
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291 bool eventWasConsumed = false; |
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292 switch (event->type()) { |
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293 case QEvent::GraphicsSceneMouseMove: |
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294 case QEvent::GraphicsSceneMousePress: |
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295 case QEvent::GraphicsSceneMouseRelease: |
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296 eventWasConsumed = handleMouseEvent(event); |
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297 break; |
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298 default: |
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299 break; |
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300 } |
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301 return eventWasConsumed; |
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302 } |
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303 |
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304 // end of file |
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