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1 /* |
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2 * Copyright (c) 2007, 2008 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: Implementation for scrollbar widget. |
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15 * |
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16 */ |
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17 |
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18 |
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19 // Alfred Client includes |
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20 #include <alf/alfenv.h> |
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21 |
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22 // Widget Model includes |
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23 #include "alf/alfelement.h" |
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24 #include <alf/alfexception.h> |
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25 |
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26 // Widget Includes |
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27 #include <alf/ialfscrollbardefaultbaseelement.h> |
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28 #include <alf/alfscrollbarproductids.h> |
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29 // Internal includes |
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30 |
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31 #include "alfscrollbardefaultbaseelement.h" |
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32 #include "alfscrollbarwidget.h" |
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33 #include "alfscrollbarmodel.h" |
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34 #include "alfscrollbarcontrol.h" |
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35 #include <alf/alfwidgetenvextension.h> |
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36 using namespace alfscrollbarwidget; |
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37 |
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38 using Alf::CommonWidgetEvent; |
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39 namespace Alf |
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40 { |
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41 |
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42 // --------------------------------------------------------------------------- |
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43 // Creator Method. |
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44 // --------------------------------------------------------------------------- |
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45 // |
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46 AlfScrollBarWidget* AlfScrollBarWidget :: create( |
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47 CAlfEnv& aEnv, |
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48 IAlfContainerWidget& aContainer, |
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49 const char* aWidgetId, |
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50 DuiNode *aNode, |
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51 const char *aFilePath, |
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52 AlfCustomInitDataBase* aCustomData) |
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53 { |
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54 return (new( EMM ) AlfScrollBarWidget(aEnv, |
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55 aContainer, aWidgetId, aNode, aFilePath, aCustomData)); |
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56 } |
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57 |
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58 |
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59 // --------------------------------------------------------------------------- |
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60 // Destructor. |
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61 // --------------------------------------------------------------------------- |
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62 // |
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63 AlfScrollBarWidget::~AlfScrollBarWidget() |
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64 { |
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65 if(mScrollModel) |
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66 { |
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67 delete mScrollModel; |
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68 } |
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69 else |
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70 { |
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71 |
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72 } |
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73 } |
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74 |
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75 |
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76 |
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77 // --------------------------------------------------------------------------- |
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78 // From class IAlfWidget. |
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79 // Getter for the parent container. The ownership not passed. |
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80 // --------------------------------------------------------------------------- |
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81 // |
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82 IAlfContainerWidget* AlfScrollBarWidget::parent() const |
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83 { |
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84 return mWidget->parent(); |
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85 } |
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86 |
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87 |
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88 // From class MAlfInterfaceBase. |
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89 |
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90 // --------------------------------------------------------------------------- |
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91 // Getter for interfaces provided by the scrollbar widget. |
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92 // --------------------------------------------------------------------------- |
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93 // |
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94 IAlfInterfaceBase* AlfScrollBarWidget :: makeInterface(const IfId& aType) |
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95 { |
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96 UString param ( aType.mImplementationId ); |
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97 |
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98 if (param == IAlfScrollBarWidget::type().mImplementationId) |
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99 { |
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100 return static_cast<IAlfScrollBarWidget*>(this); |
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101 } |
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102 else if (param == IAlfWidget::type().mImplementationId) |
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103 { |
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104 return static_cast<IAlfWidget*>(this); |
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105 } |
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106 else |
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107 { |
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108 //do nothing |
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109 } |
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110 |
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111 return mWidget->makeInterface(aType); |
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112 } |
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113 |
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114 |
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115 // From class IAlfWidget. |
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116 |
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117 // --------------------------------------------------------------------------- |
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118 // Getter for the control. The ownership is not passed. |
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119 // --------------------------------------------------------------------------- |
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120 // |
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121 CAlfWidgetControl* AlfScrollBarWidget :: control() const |
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122 { |
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123 return mWidget->control(); |
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124 } |
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125 |
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126 |
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127 // --------------------------------------------------------------------------- |
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128 // Setter for the control. The control is owned by the Alfred environment. |
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129 // --------------------------------------------------------------------------- |
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130 // |
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131 void AlfScrollBarWidget :: setControl( |
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132 CAlfWidgetControl* aControl, bool /*aDeletePreviousControl*/ ) |
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133 { |
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134 mScrollControl = aControl; |
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135 mWidget->setControl(aControl); |
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136 } |
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137 |
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138 |
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139 // --------------------------------------------------------------------------- |
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140 // Getter for the model. The ownership is not passed. |
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141 // --------------------------------------------------------------------------- |
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142 // |
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143 IAlfModel* AlfScrollBarWidget :: model() |
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144 { |
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145 return mScrollModel; |
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146 } |
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147 |
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148 |
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149 // --------------------------------------------------------------------------- |
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150 // Setter for the model. Ownership is passed and the old model is released. |
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151 // --------------------------------------------------------------------------- |
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152 // |
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153 void AlfScrollBarWidget :: setModel( IAlfModel* aModel, bool /*aTakeOwnerShip*/) |
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154 { |
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155 IAlfElement* baseelement = control()->findElement ("BaseElement"); |
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156 if(baseelement) |
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157 { |
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158 IAlfScrollBarBaseElementInternal* elementInternal = |
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159 static_cast<IAlfScrollBarBaseElementInternal*> ( |
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160 baseelement->makeInterface( |
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161 IAlfScrollBarBaseElementInternal::type())); |
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162 |
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163 if(aModel==NULL) |
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164 { |
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165 if(elementInternal) |
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166 { |
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167 elementInternal->destroyVisualization(); |
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168 } |
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169 delete mScrollModel; |
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170 mScrollModel = NULL; |
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171 } |
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172 else |
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173 { |
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174 if(mScrollModel) |
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175 { |
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176 delete mScrollModel; |
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177 mScrollModel = NULL; |
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178 |
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179 mScrollModel = static_cast<IAlfScrollBarModel*>( aModel->makeInterface( |
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180 IAlfScrollBarModel::type())); |
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181 AlfScrollBarModel* scrollBarModel = (AlfScrollBarModel*)mScrollModel; |
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182 // Store the widget pointer in model |
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183 scrollBarModel->storeWidget(this); |
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184 |
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185 if(mScrollModel && elementInternal) |
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186 { |
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187 elementInternal->initializeScrollModel(); |
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188 elementInternal->updateVisualization(); |
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189 } |
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190 } |
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191 else |
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192 { |
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193 mScrollModel =static_cast<IAlfScrollBarModel*>( aModel->makeInterface( |
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194 IAlfScrollBarModel::type())); |
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195 AlfScrollBarModel* scrollBarModel = (AlfScrollBarModel*)mScrollModel; |
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196 scrollBarModel->storeWidget(this); |
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197 |
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198 if(mScrollModel && elementInternal) |
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199 { |
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200 elementInternal->createVisualization(); |
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201 } |
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202 } |
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203 |
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204 } |
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205 } |
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206 } |
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207 |
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208 |
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209 // --------------------------------------------------------------------------- |
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210 // Get the name of the widget instance. |
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211 // --------------------------------------------------------------------------- |
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212 // |
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213 const char* AlfScrollBarWidget :: widgetName() const |
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214 { |
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215 return mWidget->widgetName(); |
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216 } |
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217 |
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218 |
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219 // --------------------------------------------------------------------------- |
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220 // Sets/Releases the Focus from child widget of container. |
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221 // --------------------------------------------------------------------------- |
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222 // |
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223 void AlfScrollBarWidget :: setChildFocus(bool /*aFocus*/) |
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224 { |
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225 } |
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226 |
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227 |
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228 //--------------------------------------------------------------------------- |
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229 // Creates the presentation for the widget from XML. Destroys any existing |
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230 // presentation. |
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231 //--------------------------------------------------------------------------- |
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232 // |
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233 void AlfScrollBarWidget :: setPresentation(const char* /*aFilePath*/) |
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234 { |
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235 } |
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236 |
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237 |
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238 |
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239 // --------------------------------------------------------------------------- |
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240 // C++ default constructor. |
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241 // --------------------------------------------------------------------------- |
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242 // |
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243 AlfScrollBarWidget :: AlfScrollBarWidget( |
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244 CAlfEnv& aEnv, IAlfContainerWidget& aContainer, |
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245 const char* aWidgetId, DuiNode * /*aNode*/, |
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246 const char * /*aFilePath*/, |
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247 AlfCustomInitDataBase* /*aCustomData*/) |
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248 { |
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249 mScrollModel = NULL; |
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250 mWidget.reset(new(EMM) AlfWidget(aWidgetId,aContainer,aEnv)); |
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251 // Default Imperative Construction |
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252 constructDefault(aEnv); |
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253 |
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254 } |
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255 |
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256 |
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257 // --------------------------------------------------------------------------- |
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258 // Constructs default Visualization for widget. |
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259 // --------------------------------------------------------------------------- |
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260 // |
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261 void AlfScrollBarWidget :: constructDefault(CAlfEnv& aEnv) |
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262 { |
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263 const char* mBaseElementLoadId=KScrollBarDefaultBaseElement; |
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264 |
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265 // Create Control |
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266 CAlfWidgetControl* ctrl = constructDefaultControl(aEnv); |
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267 setControl(ctrl); |
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268 |
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269 // Create Element |
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270 IAlfWidgetFactory& widgetFactory = AlfWidgetEnvExtension::widgetFactory(control()->Env()); |
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271 |
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272 widgetFactory.createElement<IAlfElement>(mBaseElementLoadId, |
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273 baseElementName(), |
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274 *control()); |
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275 } |
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276 |
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277 // --------------------------------------------------------------------------- |
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278 // Construct and returns Scrollbar Control. |
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279 // --------------------------------------------------------------------------- |
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280 // |
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281 CAlfWidgetControl *AlfScrollBarWidget :: constructDefaultControl(CAlfEnv& aEnv) |
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282 { |
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283 return(new(EMM) AlfScrollBarControl(aEnv) ); |
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284 } |
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285 |
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286 // --------------------------------------------------------------------------- |
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287 // Enables tactile feedback based on the flag state |
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288 // --------------------------------------------------------------------------- |
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289 // |
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290 void AlfScrollBarWidget ::enableTactile(bool aFlag) |
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291 { |
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292 AlfScrollBarControl* scrollControl = (AlfScrollBarControl*)control(); |
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293 scrollControl->EnableTactileFeedback(aFlag); |
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294 } |
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295 |
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296 // --------------------------------------------------------------------------- |
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297 // Getter for tactile feedback state |
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298 // --------------------------------------------------------------------------- |
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299 // |
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300 bool AlfScrollBarWidget ::IsTactileEnabled() |
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301 { |
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302 AlfScrollBarControl* scrollControl = (AlfScrollBarControl*)control(); |
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303 return scrollControl->IsTactileFeedbackEnabled(); |
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304 } |
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305 |
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306 }//End of Alf |
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307 |