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1 /* |
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2 * Copyright (c) 2007 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: Container class for Location Centre Application UI. |
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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 // SYSTEM INCLUDES |
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20 #include <avkon.hrh> |
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21 #include <barsread.h> |
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22 #include <lclocationappinfo.h> |
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23 #include <aknlists.h> |
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24 #include <akniconarray.h> // Icon Array |
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25 #include <eikclbd.h> // Column Listbox |
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26 #include <gulicon.h> // Gul Icon |
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27 #include <barsread.h> // TResourceReader |
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28 #include <lcapp.rsg> |
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29 #include <csxhelp/loccentre.hlp.hrh> |
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30 #include <aknutils.h> |
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31 #include <eikspane.h> // Status pane |
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32 #include <akntitle.h> // CAknTitlePane |
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33 #include <stringloader.h> |
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34 |
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35 // USER INCLUDES |
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36 #include "lccontainer.h" |
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37 #include "lcappui.h" |
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38 #include "lclistboxmodel.h" |
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39 #include "lcappuid.hrh" |
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40 #include "lcapp.hrh" |
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41 |
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42 // CONSTANT DEFINITIONS |
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43 const TInt KLcNoOfElements = 1; |
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44 const TInt KMinSelectedItemNumber = 0; |
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45 const TInt KViewListboxGranularity = 3; // The number of default Applications |
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46 |
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47 // ----------------- Member funtions for CLcContainer class ------------------ |
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48 |
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49 // --------------------------------------------------------------------------- |
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50 // CLcContainer::CLcContainer |
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51 // --------------------------------------------------------------------------- |
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52 // |
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53 CLcContainer::CLcContainer( MLcEventHandler& aEventHandler, |
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54 CLcListBoxModel& aListBoxModel ) |
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55 :iEventHandler( aEventHandler ), |
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56 iListBoxModel( &aListBoxModel ) |
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57 { |
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58 } |
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59 |
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60 |
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61 // --------------------------------------------------------------------------- |
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62 // CLcContainer::~CLcContainer |
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63 // --------------------------------------------------------------------------- |
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64 // |
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65 CLcContainer::~CLcContainer() |
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66 { |
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67 // Delete the List box |
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68 delete iListBox; |
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69 } |
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70 |
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71 // --------------------------------------------------------------------------- |
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72 // CLcContainer::NewL |
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73 // --------------------------------------------------------------------------- |
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74 // |
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75 CLcContainer* CLcContainer::NewL( const TRect& aRect, |
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76 MLcEventHandler& aEventHandler, |
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77 CLcListBoxModel& aListBoxModel ) |
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78 { |
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79 CLcContainer* self = new (ELeave) CLcContainer( aEventHandler, aListBoxModel ); |
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80 CleanupStack::PushL( self ); |
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81 self->ConstructL( aRect ); |
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82 CleanupStack::Pop(); |
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83 |
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84 return self; |
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85 } |
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86 |
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87 // --------------------------------------------------------------------------- |
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88 // CLcContainer::CLcContainer |
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89 // --------------------------------------------------------------------------- |
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90 // |
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91 void CLcContainer::ConstructL( const TRect& aRect ) |
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92 { |
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93 // This is the cheif control for this application. This has to be made a |
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94 // Window owning control |
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95 CreateWindowL(); |
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96 |
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97 // Create a New Title for the View |
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98 MakeTitleL( R_LOC_TITLE_CENTRE ); |
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99 |
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100 // Create the List box |
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101 CreateListboxL(); |
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102 |
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103 // Get the Help context |
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104 iContextName = KLOC_HLP_LOC_CENTRE(); |
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105 |
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106 SetRect(aRect); |
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107 ActivateL(); |
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108 } |
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109 |
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110 // --------------------------------------------------------------------------- |
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111 // void CLcContainer::GetHelpContext |
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112 // --------------------------------------------------------------------------- |
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113 // |
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114 void CLcContainer::GetHelpContext( TCoeHelpContext& aContext ) const |
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115 { |
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116 aContext.iContext = iContextName; |
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117 aContext.iMajor = TUid::Uid( KLcAppUid ); |
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118 } |
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119 |
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120 // --------------------------------------------------------------------------- |
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121 // TInt CLcContainer::GetFocussedItem |
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122 // --------------------------------------------------------------------------- |
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123 // |
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124 TInt CLcContainer::GetFocussedItem() |
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125 { |
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126 // No need to check for the List box. |
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127 return iListBox->CurrentItemIndex(); |
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128 } |
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129 |
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130 // --------------------------------------------------------------------------- |
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131 // void CLcContainer::UpdateL |
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132 // --------------------------------------------------------------------------- |
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133 // |
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134 void CLcContainer::UpdateL( CLcListBoxModel& aListBoxModel ) |
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135 { |
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136 TBool itemRemoved = EFalse; |
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137 |
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138 if ( aListBoxModel.MdcaCount() < iListBoxModel->MdcaCount() ) |
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139 { |
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140 itemRemoved = ETrue; |
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141 } |
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142 |
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143 // Assign the latest list box model |
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144 iListBoxModel = &aListBoxModel; |
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145 |
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146 // If there is a list box update it. |
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147 if ( iListBox ) |
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148 { |
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149 // First we have to update the Icons Array |
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150 UpdateIconsL(); |
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151 |
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152 if ( itemRemoved ) |
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153 { |
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154 iListBox->HandleItemRemovalL(); |
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155 } |
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156 else |
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157 { |
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158 iListBox->HandleItemAdditionL(); |
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159 } |
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160 |
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161 // Set the last element as the Selected element if the element has been |
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162 // removed. |
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163 TInt currentItem = iListBox->CurrentItemIndex(); |
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164 MDesCArray* array = iListBox->Model()->ItemTextArray(); |
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165 if( KErrNotFound == currentItem || currentItem >= array->MdcaCount() ) |
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166 { |
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167 TInt newSelected = array->MdcaCount() - 1; |
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168 if( newSelected >= KMinSelectedItemNumber ) |
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169 { |
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170 iListBox->SetCurrentItemIndex( newSelected ); |
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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 // Update the List box. |
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176 DrawDeferred(); |
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177 } |
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178 |
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179 // --------------------------------------------------------------------------- |
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180 // void CLcContainer::UpdateIconsL |
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181 // --------------------------------------------------------------------------- |
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182 // |
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183 void CLcContainer::UpdateIconsL() |
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184 { |
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185 // Update the Icons only if there are any elements the List box |
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186 if ( iListBoxModel->MdcaCount()) |
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187 { |
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188 // Create a new Icons Array |
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189 CAknIconArray* icons = new( ELeave ) CAknIconArray( KViewListboxGranularity ); |
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190 CleanupStack::PushL( icons ); |
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191 |
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192 CLcLocationAppInfoArray& appArray( iListBoxModel->AppArray()); |
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193 TInt count = appArray.Count(); |
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194 // Add All the icons to the Icons array |
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195 for ( TInt i = 0; i < count; i++ ) |
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196 { |
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197 icons->AppendL( appArray[i].IconL() ); |
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198 } |
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199 |
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200 // Get old icons and delete those. This is done because SetIconArray will |
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201 // not do it. |
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202 CAknIconArray* oldIcons = |
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203 static_cast<CAknIconArray*>( iListBox->ItemDrawer()->ColumnData()->IconArray()); |
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204 |
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205 delete oldIcons; |
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206 |
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207 //Set New Icons to array |
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208 iListBox->ItemDrawer()->ColumnData()->SetIconArray( icons ); |
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209 CleanupStack::Pop(icons); |
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210 } |
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211 } |
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212 |
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213 // --------------------------------------------------------------------------- |
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214 // void CLcContainer::SizeChanged |
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215 // --------------------------------------------------------------------------- |
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216 // |
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217 void CLcContainer::SizeChanged() |
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218 { |
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219 if ( iListBox ) |
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220 { |
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221 iListBox->SetRect( Rect()); |
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222 } |
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223 } |
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224 |
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225 // --------------------------------------------------------------------------- |
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226 // TInt CLcContainer::CountComponentControls |
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227 // --------------------------------------------------------------------------- |
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228 // |
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229 TInt CLcContainer::CountComponentControls() const |
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230 { |
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231 return KLcNoOfElements; |
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232 } |
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233 |
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234 // --------------------------------------------------------------------------- |
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235 // CCoeControl* CLcContainer::CLcContainer |
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236 // --------------------------------------------------------------------------- |
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237 // |
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238 CCoeControl* CLcContainer::ComponentControl(TInt /* aIndex*/ ) const |
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239 { |
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240 return iListBox; |
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241 } |
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242 |
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243 // --------------------------------------------------------------------------- |
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244 // TKeyResponse CLcContainer::OfferKeyEventL |
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245 // --------------------------------------------------------------------------- |
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246 // |
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247 TKeyResponse CLcContainer::OfferKeyEventL( const TKeyEvent& aKeyEvent, |
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248 TEventCode aType ) |
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249 { |
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250 switch ( aKeyEvent.iCode ) |
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251 { |
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252 case EKeyLeftArrow: |
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253 case EKeyRightArrow: |
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254 { |
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255 // No action in this application for the Right arrow and left |
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256 // arrow. |
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257 return EKeyWasNotConsumed; |
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258 } |
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259 default: |
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260 { |
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261 break; |
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262 } |
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263 } |
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264 // Now it's List box's job to process the key event |
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265 return iListBox->OfferKeyEventL( aKeyEvent, aType ); |
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266 } |
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267 |
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268 // --------------------------------------------------------------------------- |
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269 // void CLcContainer::HandleResourceChange |
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270 // --------------------------------------------------------------------------- |
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271 // |
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272 void CLcContainer::HandleResourceChange( TInt aType ) |
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273 { |
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274 // Pass the event to the base class |
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275 CCoeControl::HandleResourceChange( aType ); |
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276 |
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277 switch( aType ) |
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278 { |
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279 // Dynamic Layout switch and Skin Change |
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280 case KEikDynamicLayoutVariantSwitch: |
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281 case KAknsMessageSkinChange: |
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282 { |
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283 // The Command Handler needs to handle this event. TRAP_IGNORE |
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284 // the error incase it occurs |
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285 TRAP_IGNORE( iEventHandler.HandleEventL( aType )); |
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286 break; |
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287 } |
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288 default: |
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289 { |
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290 break; |
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291 } |
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292 } |
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293 } |
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294 |
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295 // --------------------------------------------------------------------------- |
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296 // void CLcContainer::HandleListBoxEventL |
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297 // --------------------------------------------------------------------------- |
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298 // |
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299 void CLcContainer::HandleListBoxEventL( CEikListBox* /* aListBox */, |
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300 TListBoxEvent aEventType ) |
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301 { |
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302 switch (aEventType) |
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303 { |
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304 // List box Item Selection |
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305 case EEventEnterKeyPressed: |
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306 case EEventItemSingleClicked: |
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307 { |
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308 // A Location based Application or Content/Service has been |
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309 // selected. This element has to be returned back to the Command |
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310 // Hanlder inorder to enable it to take appropriate action. |
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311 iEventHandler.HandleEventL( ELcOpen ); |
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312 break; |
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313 } |
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314 default: |
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315 break; |
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316 } |
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317 } |
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318 |
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319 // --------------------------------------------------------------------------- |
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320 // void CLcContainer::FocusChanged |
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321 // --------------------------------------------------------------------------- |
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322 // |
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323 void CLcContainer::FocusChanged( TDrawNow aDrawNow ) |
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324 { |
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325 CCoeControl::FocusChanged( aDrawNow ); |
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326 |
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327 // The focus event has to be explicitly handed over to all the compound |
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328 // controls since CCoeControl does not do that implicitly |
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329 iListBox->SetFocus( IsFocused(), aDrawNow ); |
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330 } |
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331 |
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332 // --------------------------------------------------------------------------- |
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333 // void CLcContainer::MakeTitleL |
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334 // Sets the Title text |
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335 // |
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336 // @param aResourceText Resource to create title |
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337 // --------------------------------------------------------------------------- |
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338 // |
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339 void CLcContainer::MakeTitleL( TInt aResourceText ) |
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340 { |
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341 CEikStatusPane* statusPane = |
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342 static_cast<CEikStatusPane*>( iEikonEnv->AppUiFactory()->StatusPane()); |
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343 // Obtain the title from the Status Pane |
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344 CAknTitlePane* title = static_cast<CAknTitlePane*>( statusPane-> |
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345 ControlL( TUid::Uid( EEikStatusPaneUidTitle ))); |
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346 |
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347 // Set the Title's buffer |
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348 HBufC* buf = StringLoader::LoadL( aResourceText ); |
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349 title->SetText( buf ); // Takes ownership of buf |
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350 } |
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351 |
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352 // --------------------------------------------------------------------------- |
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353 // void CLcContainer::CreateListboxL |
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354 // --------------------------------------------------------------------------- |
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355 // |
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356 void CLcContainer::CreateListboxL() |
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357 { |
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358 // Create the List box |
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359 iListBox = new ( ELeave ) CAknSingleLargeStyleListBox; |
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360 iListBox->ConstructL( this, EAknListBoxSelectionList ); |
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361 iListBox->SetContainerWindowL( *this ); |
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362 iListBox->SetListBoxObserver( this ); |
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363 iListBox->CreateScrollBarFrameL(ETrue); |
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364 iListBox->ScrollBarFrame()->SetScrollBarVisibilityL( CEikScrollBarFrame::EOff, |
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365 CEikScrollBarFrame::EAuto ); |
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366 |
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367 UpdateIconsL(); |
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368 |
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369 // The ownership of the List box model is retained with the Container. |
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370 // This is needed because the model is used to return the identifier of the |
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371 // Location based Application or Content/Service when its selected. |
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372 iListBox->Model()->SetItemTextArray( iListBoxModel ); |
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373 iListBox->Model()->SetOwnershipType( ELbmDoesNotOwnItemArray ); |
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374 iListBox->ItemDrawer()->ColumnData()->EnableMarqueeL( ETrue ); |
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375 |
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376 iListBox->ActivateL(); |
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377 } |
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378 |
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379 // End of File |