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1 /* |
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2 * Copyright (c) 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 the License "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: HG VOD* |
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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 |
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20 #ifndef VCXHGVODCATEGORYLISTMODELHANDLER_H |
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21 #define VCXHGVODCATEGORYLISTMODELHANDLER_H |
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22 |
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23 #include <ganes/HgScrollBufferObserverIface.h> |
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24 |
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25 #include "vcxhgvodmainviewcontainer.h" |
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26 #include "vcxnscategoryproviderif.h" |
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27 #include "vcxnscategoryproviderobserver.h" |
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28 |
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29 class CHgScroller; |
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30 class CHgItem; |
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31 class CVcxHgVodMainView; |
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32 class CVcxNsUiEngine; |
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33 class CVcxNsCategory; |
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34 class CVcxHgVodCategoryListImpl; |
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35 |
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36 // CLASS DECLARATION |
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37 /** |
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38 * |
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39 * |
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40 * |
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41 * @code |
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42 * |
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43 * @endcode |
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44 * |
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45 * @lib vcxhgvodui.lib |
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46 * @since S60 v5.0 |
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47 */ |
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48 class CVcxHgVodCategoryListModelHandler : public CBase, |
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49 public MVcxNsCategoryProviderObserver, |
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50 public MHgScrollBufferObserver |
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51 { |
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52 |
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53 public: |
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54 |
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55 /** |
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56 * Two-phased constructor. |
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57 */ |
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58 static CVcxHgVodCategoryListModelHandler* NewL( |
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59 CVcxNsUiEngine& aDataProviderIf, |
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60 CVcxHgVodMainView& aView, |
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61 CHgScroller& aScroller, |
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62 CVcxHgVodCategoryListImpl& aCategoryListImpl ); |
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63 |
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64 /** |
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65 * Two-phased constructor. |
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66 */ |
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67 static CVcxHgVodCategoryListModelHandler* NewLC( |
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68 CVcxNsUiEngine& aDataProviderIf, |
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69 CVcxHgVodMainView& aView, |
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70 CHgScroller& aScroller, |
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71 CVcxHgVodCategoryListImpl& aCategoryListImpl ); |
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72 |
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73 /** |
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74 * Destructor. |
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75 */ |
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76 virtual ~CVcxHgVodCategoryListModelHandler(); |
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77 |
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78 /** |
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79 * Activate model |
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80 * |
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81 */ |
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82 void DoActivateModelL( ); |
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83 |
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84 /** |
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85 * Deactivate model |
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86 * |
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87 */ |
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88 void DoDeActivateModel( ); |
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89 |
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90 /** |
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91 * Get services and set to widget model. |
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92 * |
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93 */ |
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94 void SetListContentL(); |
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95 |
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96 /** |
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97 * Get category provider interface pointer |
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98 * |
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99 */ |
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100 MVcxNsCategoryProviderIf* CategoryProvider(); |
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101 |
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102 public: |
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103 |
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104 /** |
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105 * From MVcxNsCategoryProviderObserver |
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106 * Notify category's data has been updated. |
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107 */ |
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108 void CategoryUpdated( TInt aIndex ); |
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109 |
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110 /** |
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111 * From MVcxNsCategoryProviderObserver |
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112 * Application state or full view data needs to be updated. |
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113 */ |
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114 void RefreshView(); |
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115 |
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116 /** |
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117 * From MVcxNsCategoryProviderObserver |
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118 * Application state needs to be updated. |
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119 */ |
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120 void HandleAppStateChangedL(); |
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121 |
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122 /** |
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123 * From MVcxNsCategoryProviderObserver |
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124 * Epg update is ongoing, show the notification. |
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125 * When downloading and parsing the xml, both parameters are 0. |
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126 * |
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127 * @param aDownloaded count of downloaded thumbnails. |
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128 * @param aTotal Total count of thumbnails to be downloaded. |
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129 */ |
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130 void ShowUpdatingNoteL( TBool aShow, TInt aDownloadedTbns, TInt aTotalTbns ); |
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131 |
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132 /** |
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133 * From MVcxNsCategoryProviderObserver |
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134 * Handle error |
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135 * |
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136 * @param aError Error to handle in UI |
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137 */ |
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138 void HandleUpdateErrorL( TInt aError ); |
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139 |
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140 private: |
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141 |
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142 /** |
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143 * Default constructor |
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144 * |
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145 */ |
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146 CVcxHgVodCategoryListModelHandler( |
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147 CVcxNsUiEngine& aDataProviderIf, |
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148 CVcxHgVodMainView& aView, |
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149 CHgScroller& aScroller, |
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150 CVcxHgVodCategoryListImpl& aCategoryListImpl ); |
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151 |
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152 /** |
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153 * Constructor |
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154 * |
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155 */ |
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156 void ConstructL( ); |
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157 |
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158 /** |
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159 * Updates data of item in list. |
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160 * @param aIndex Item's index |
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161 */ |
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162 void UpdateListItemL( TInt aIndex ); |
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163 |
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164 /** |
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165 * Refreshes view. |
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166 */ |
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167 void RefreshViewL(); |
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168 |
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169 /** |
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170 * From MHgScrollBufferObserver |
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171 * |
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172 * Buffer position changed. The items between the aBufferStart |
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173 * and aBufferEnd should be loaded as soon as possible. |
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174 * |
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175 * @param aBufferStart The index of the first item in buffer. |
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176 * @param aBufferEnd The index of the last item in buffer. |
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177 * @param aDirection The direction of request. |
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178 */ |
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179 void Request( TInt aBufferStart, TInt aBufferEnd, THgScrollDirection aDirection ); |
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180 |
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181 /** |
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182 * From MHgScrollBufferObserver |
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183 * |
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184 * Buffer position changed. The items between the aBufferStart |
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185 * and aBufferEnd should be released. |
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186 * |
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187 * @param aBufferStart The index of the first item in buffer. |
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188 * @param aBufferEnd The index of the last item in buffer. |
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189 */ |
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190 void Release( TInt aBufferStart, TInt aBufferEnd ); |
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191 |
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192 private: // data |
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193 |
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194 /** |
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195 * Ref to Ui Engine interface. |
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196 * |
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197 */ |
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198 CVcxNsUiEngine& iDataProviderIf; |
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199 |
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200 /** |
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201 * Reference to vod main view |
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202 * |
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203 */ |
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204 CVcxHgVodMainView& iView; |
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205 |
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206 /** |
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207 * Pointer to category provide if in UI engine |
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208 * |
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209 */ |
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210 MVcxNsCategoryProviderIf* iCategoryProvider; |
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211 |
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212 /** |
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213 * Pointer to array that holds categories in UI engine |
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214 * Not own. |
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215 */ |
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216 RPointerArray<CVcxNsCategory>* iCategories; |
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217 |
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218 /** |
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219 * Ref to scroller |
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220 * |
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221 */ |
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222 CHgScroller& iScroller; |
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223 |
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224 /** |
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225 * Ref to list implementation |
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226 * |
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227 */ |
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228 CVcxHgVodCategoryListImpl& iListImpl; |
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229 }; |
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230 |
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231 #endif // VCXHGVODCATEGORYLISTMODELHANDLER_H |