1 /* |
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2 * Copyright (c) 2002-2004 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: Template for a listbox class which forwards listbox events |
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15 * to an observer. |
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16 * |
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17 */ |
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18 |
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19 |
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20 #ifndef FLDLISTBOXTEMPLATE_H |
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21 #define FLDLISTBOXTEMPLATE_H |
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22 |
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23 #include <coedef.h> // TKeyResponse |
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24 #include <w32std.h> // TKeyEvent, TEventCode |
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25 #include "MFLDFileListBoxObserver.h" |
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26 #include "CFLDFileListModel.h" |
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27 #include "CFLDPopupList.h" |
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28 |
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29 // CLASS DECLARATION |
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30 |
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31 /** |
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32 * Template for a listbox class which forwards listbox events to an observer. |
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33 * |
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34 * @lib filelist.lib |
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35 * @since Series 60 2.6 |
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36 */ |
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37 template<class T> |
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38 class FLDListBoxTemplate : public T |
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39 { |
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40 public: // Constructors and destructor |
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41 |
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42 /** |
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43 * Constructor |
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44 */ |
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45 FLDListBoxTemplate( |
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46 MFLDFileListBoxObserver& aObserver, CFLDFileListModel& aModel ) |
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47 : iObserver( aObserver ), iModel( aModel ) {} |
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48 |
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49 virtual ~FLDListBoxTemplate() |
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50 { |
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51 iObserver.HandleFileListBoxEventL( |
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52 MFLDFileListBoxObserver::EListBoxClosed ); |
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53 } |
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54 |
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55 public: // New functions |
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56 |
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57 /** |
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58 * Sets populist |
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59 */ |
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60 void SetListBox( CFLDPopupList* aPopupList ) |
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61 { |
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62 iPopupList = aPopupList; |
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63 } |
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64 |
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65 public: // Functions from base classes |
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66 |
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67 /** |
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68 * Method modified to send listbox events to an observer, when |
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69 * focus changes from one list item to another |
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70 */ |
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71 TKeyResponse OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType ) |
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72 { |
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73 /// Current softkeystate |
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74 MFLDFileListBoxObserver::TFileListSoftKeyState softKeyState; |
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75 iObserver.HandleSoftKeyState( softKeyState ); |
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76 |
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77 if( aType == EEventKey ) |
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78 { |
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79 // Get current item index |
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80 TInt oldIndex( T::CurrentItemIndex() ); |
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81 // Call OfferKeyEventL |
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82 TKeyResponse response( T::OfferKeyEventL( aKeyEvent, aType ) ); |
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83 // Get new item index |
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84 TInt newIndex( T::CurrentItemIndex() ); |
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85 // Get current filename |
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86 TFileName filename; |
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87 iModel.GetFileName( filename, T::CurrentItemIndex() ); |
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88 // Compare new and old index |
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89 if( oldIndex != newIndex ) |
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90 { |
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91 // Notify focus change if focus changes |
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92 iObserver.HandleFileListBoxEventL( |
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93 MFLDFileListBoxObserver::EFocusChanged, filename ); |
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94 |
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95 #ifdef RD_VIDEO_AS_RINGING_TONE |
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96 // When video is drawn over popuplist and user changes focus |
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97 // or interrupts the video by using other key |
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98 // screen must be forced to be redrawn |
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99 if( ( iPopupList ) && |
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100 ( softKeyState == MFLDFileListBoxObserver::EPreviewSelectSoftKeyState ) ) |
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101 { |
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102 // Set the vertical scroll bar and listbox to not dimmed. |
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103 if ( iPopupList ) |
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104 { |
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105 iPopupList->ListBox()->SetDimmed( EFalse ); |
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106 iPopupList->ListBox()->ScrollBarFrame()-> |
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107 VerticalScrollBar()->SetDimmed( EFalse ); |
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108 } |
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109 |
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110 iPopupList->DrawNow( CEikonEnv::Static()->EikAppUi()->ApplicationRect() ); |
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111 } |
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112 #endif |
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113 } |
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114 else |
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115 { |
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116 #ifdef RD_VIDEO_AS_RINGING_TONE |
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117 if( ( iModel.MediaFileType( filename ) == ECLFMediaTypeVideo ) && |
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118 ( aKeyEvent.iScanCode == EStdKeyDevice3 ) ) |
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119 { |
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120 // Do not notify observer |
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121 // when joystick key is pressed |
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122 // and current file is a video file |
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123 } |
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124 else |
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125 { |
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126 iObserver.HandleFileListBoxEventL( |
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127 MFLDFileListBoxObserver::EOtherKeyEvent ); |
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128 |
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129 // When video is drawn over popuplist and user changes focus |
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130 // or interrupts the video by using other key |
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131 // screen must be forced to be redrawn |
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132 if( ( iPopupList ) && |
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133 ( softKeyState == MFLDFileListBoxObserver::EPreviewSelectSoftKeyState ) ) |
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134 { |
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135 // Set the vertical scroll bar and listbox to not dimmed. |
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136 if ( iPopupList ) |
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137 { |
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138 iPopupList->ListBox()->SetDimmed( EFalse ); |
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139 iPopupList->ListBox()->ScrollBarFrame()-> |
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140 VerticalScrollBar()->SetDimmed( EFalse ); |
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141 } |
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142 |
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143 iPopupList->DrawNow( CEikonEnv::Static()->EikAppUi()->ApplicationRect() ); |
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144 } |
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145 } |
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146 |
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147 #else |
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148 iObserver.HandleFileListBoxEventL( |
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149 MFLDFileListBoxObserver::EOtherKeyEvent ); |
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150 #endif |
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151 } |
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152 return response; |
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153 } |
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154 return T::OfferKeyEventL( aKeyEvent, aType ); |
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155 } |
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156 |
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157 private: // Data |
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158 |
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159 /// Ref: The list box observer, which gets notified about list item focus changes |
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160 MFLDFileListBoxObserver& iObserver; |
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161 |
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162 /// Ref: File list model |
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163 CFLDFileListModel& iModel; |
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164 |
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165 /// Ref: File list popuplist |
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166 CFLDPopupList* iPopupList; |
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167 |
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168 }; |
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169 |
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170 #endif // FLDLISTBOXTEMPLATE_H |
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171 |
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172 // End of File |
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