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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: Proxy model for view in add to homescreen mode. |
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15 * |
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16 */ |
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17 |
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18 #include <QObject> |
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19 #include <canotifier.h> |
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20 |
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21 #include "hscontentservice.h" |
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22 #include "hsaddmodeproxymodel.h" |
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23 #include "hsmenuitemmodel.h" |
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24 #include "hsapplibstateutils.h" |
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25 |
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26 /*! |
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27 \class HsAddModeProxyModel |
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28 \ingroup group_hsmenustateplugin |
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29 \brief Proxy Model for add to homescreen mode. |
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30 Filtering cwrt widgets to not displaing them in add mode when they are alredy present on HS. |
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31 \lib ?library |
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32 \see QSortFilterProxyModel |
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33 */ |
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34 |
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35 /*! |
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36 Constructor. |
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37 \param parent parent for object. |
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38 */ |
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39 HsAddModeProxyModel::HsAddModeProxyModel(QObject *parent) : |
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40 QSortFilterProxyModel(parent), |
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41 mCwrtWidgetCache(), |
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42 mQuery() |
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43 { |
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44 initilizeCwrtWidgetCache(); |
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45 invalidateFilter(); |
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46 connect(HsContentService::instance(), |
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47 SIGNAL(widgetAdded(const QString &, const QVariantHash &)), |
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48 this, SLOT(updateCacheOnAddWidget(const QString&, const QVariantHash&))); |
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49 connect(HsContentService::instance(), |
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50 SIGNAL(widgetRemoved(const QString &, const QVariantHash &)), |
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51 this, SLOT(updateCacheOnRemoveWidget(const QString&, const QVariantHash&))); |
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52 // create notifier for a cwrt widgets with query created in initilizeCwrtWidgetCache |
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53 CaNotifierFilter filter(mQuery); |
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54 mNotifier.reset(CaService::instance()->createNotifier(filter)); |
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55 connect(mNotifier.data(), |
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56 SIGNAL(entryChanged(const CaEntry&, ChangeType)), |
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57 this, |
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58 SLOT(updateEntryStatus(const CaEntry&, ChangeType))); |
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59 } |
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60 |
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61 /* |
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62 Destructor. |
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63 */ |
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64 HsAddModeProxyModel::~HsAddModeProxyModel() |
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65 { |
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66 } |
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67 |
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68 void HsAddModeProxyModel::initilizeCwrtWidgetCache() |
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69 { |
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70 QStringList entryTypeNames; |
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71 entryTypeNames.append(Hs::applicationTypeName); |
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72 mQuery.setEntryTypeNames(entryTypeNames); |
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73 mQuery.setAttribute(Hs::swTypeKey, Hs::HS_CWRT_APP_TYPE); |
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74 mQuery.setAttribute(Hs::widgetUriAttributeName, |
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75 Hs::HS_WIDGET_URI_ATTRIBUTE_CWRT_VALUE); |
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76 QList< QSharedPointer<CaEntry> > entries = |
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77 CaService::instance()->getEntries(mQuery); |
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78 foreach (QSharedPointer<CaEntry> entry, entries) { |
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79 QVariantHash preferences; |
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80 QMap<QString, QString> attributes = entry->attributes(); |
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81 QMapIterator<QString, QString> i(attributes); |
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82 while (i.hasNext()) { |
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83 i.next(); |
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84 QString key(i.key()); |
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85 QString value(i.value()); |
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86 if (key.contains(Hs::widgetParam)) { |
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87 preferences.insert(key.remove(Hs::widgetParam),value); |
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88 } |
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89 } |
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90 int count(0); |
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91 HsContentService::instance()->widgets( |
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92 Hs::HS_WIDGET_URI_ATTRIBUTE_CWRT_VALUE,preferences,count); |
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93 mCwrtWidgetCache.insert(entry->id(), count > 0); |
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94 } |
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95 |
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96 } |
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97 |
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98 /* |
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99 Reimplementated from QSortFilterProxyModel to forward signals from CaItemModel. |
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100 \param sourceModel source model. |
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101 */ |
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102 void HsAddModeProxyModel::setSourceModel(QAbstractItemModel *sourceModel) |
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103 { |
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104 QSortFilterProxyModel::setSourceModel(sourceModel); |
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105 connect(sourceModel, |
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106 SIGNAL(scrollTo(int, QAbstractItemView::ScrollHint)), |
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107 this, |
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108 SIGNAL(scrollTo(int, QAbstractItemView::ScrollHint))); |
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109 connect(sourceModel, |
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110 SIGNAL(countChange()), |
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111 this, |
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112 SIGNAL(countChange())); |
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113 } |
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114 |
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115 /*! |
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116 Return entryid for given Cwrt with mini view widget. |
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117 \param uri of a widget. |
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118 \param preferences widget preferences. |
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119 \retval int entry id or 0 for not cwrt with mini view widgets. |
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120 */ |
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121 int HsAddModeProxyModel::findCwrtWidgetEntryId(const QVariantHash &preferences) |
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122 { |
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123 int result = 0; |
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124 CaQuery query; |
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125 QStringList entryTypeNames; |
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126 query.setEntryTypeNames(entryTypeNames); |
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127 query.setAttribute(Hs::swTypeKey, Hs::HS_CWRT_APP_TYPE); |
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128 query.setAttribute(Hs::widgetUriAttributeName, |
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129 Hs::HS_WIDGET_URI_ATTRIBUTE_CWRT_VALUE); |
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130 foreach (QString key, preferences.keys()) { |
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131 query.setAttribute(Hs::widgetParam+key, |
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132 preferences.value(key).toString()); |
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133 } |
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134 QList< QSharedPointer<CaEntry> > entries = |
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135 CaService::instance()->getEntries(query); |
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136 if( entries.count() > 0 ) |
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137 { |
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138 result = entries[0]->id(); |
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139 } |
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140 return result; |
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141 } |
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142 |
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143 /* |
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144 Slot called when widget is added to homescreen. |
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145 If widget is removed we checkhow many instance of this widget is left on HS. |
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146 \param uri of a widget. |
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147 \param preferences widget preferences. |
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148 */ |
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149 void HsAddModeProxyModel::updateCacheOnAddWidget(const QString &uri, |
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150 const QVariantHash &preferences){ |
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151 if (uri == Hs::HS_WIDGET_URI_ATTRIBUTE_CWRT_VALUE) { |
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152 int entryId = findCwrtWidgetEntryId(preferences); |
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153 if (!mCwrtWidgetCache.value(entryId) ) { |
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154 mCwrtWidgetCache.insert(entryId,true); |
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155 invalidateFilter(); |
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156 } |
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157 } |
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158 } |
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159 |
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160 /* |
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161 Slot called when widget is removed from homescreen. |
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162 If widget is removed we checkhow many instance of this widget is left on HS. |
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163 \param uri of a widget. |
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164 \param preferences widget preferences. |
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165 */ |
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166 void HsAddModeProxyModel::updateCacheOnRemoveWidget(const QString &uri, |
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167 const QVariantHash &preferences) |
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168 { |
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169 if (uri == Hs::HS_WIDGET_URI_ATTRIBUTE_CWRT_VALUE) { |
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170 int entryId = findCwrtWidgetEntryId(preferences); |
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171 if (mCwrtWidgetCache.value(entryId)) { |
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172 mCwrtWidgetCache.insert(entryId,false); |
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173 invalidateFilter(); |
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174 } |
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175 } |
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176 } |
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177 |
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178 /* |
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179 Reimplementated from QSortFilterProxyModel. |
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180 \param source_row row in source model. |
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181 \param source_parent source parent index. |
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182 */ |
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183 bool HsAddModeProxyModel::filterAcceptsRow(int source_row, |
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184 const QModelIndex &source_parent) const |
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185 { |
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186 QVariant entryId = sourceModel()->data( |
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187 sourceModel()->index(source_row,0,source_parent), |
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188 CaItemModel::IdRole); |
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189 return !mCwrtWidgetCache.value(entryId.toInt()); |
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190 } |
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191 |
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192 /* |
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193 Update cache if some cwrt widgets were install/uninstal/update or on mmc card. |
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194 \param entry changed entry. |
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195 \param changeType the type of the change. |
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196 */ |
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197 void HsAddModeProxyModel::updateEntryStatus(const CaEntry &entry, ChangeType changeType) |
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198 { |
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199 if (changeType == RemoveChangeType) { |
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200 mCwrtWidgetCache.remove(entry.id()); |
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201 } else { |
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202 mCwrtWidgetCache.insert(entry.id(), |
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203 HsAppLibStateUtils::isCWRTWidgetOnHomeScreen(&entry)); |
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204 } |
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205 } |
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206 |