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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: State factory. |
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15 * |
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16 */ |
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17 |
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18 #include <QStringList> |
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19 #include <QDir> |
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20 #include <QPluginLoader> |
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21 #include <QState> |
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22 |
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23 #include "hsstatefactory.h" |
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24 #include "hsstatefactory_p.h" |
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25 #include "hsstateprovidermanifest.h" |
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26 #include "hstest_global.h" |
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27 |
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28 HsStateFactoryPrivate::HsStateFactoryPrivate(HsStateFactory* aPublic) |
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29 : QObject(aPublic), |
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30 mQ(aPublic) |
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31 { |
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32 |
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33 } |
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34 |
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35 HsStateFactoryPrivate::~HsStateFactoryPrivate() |
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36 { |
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37 |
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38 } |
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39 |
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40 QList<HsStateToken> HsStateFactoryPrivate::states() |
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41 { |
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42 QStringList pluginPaths; |
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43 |
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44 //Check plugin dirs from root of different drives |
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45 QFileInfoList drives = QDir::drives(); |
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46 for(int i=0; i < drives.count(); i++) |
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47 { |
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48 QFileInfo drive = drives.at(i); |
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49 QString driveLetter = drive.absolutePath(); |
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50 QString path = driveLetter + mPluginManifestDirectory; |
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51 if(QDir(path).exists()) |
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52 { |
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53 pluginPaths << path; |
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54 } |
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55 } |
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56 |
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57 //Check plugin dir relative to current dir |
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58 if(QDir(mPluginManifestDirectory).exists() && !pluginPaths.contains(QDir(mPluginManifestDirectory).absolutePath())) |
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59 { |
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60 pluginPaths << mPluginManifestDirectory; |
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61 } |
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62 |
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63 QList<HsStateToken> states; |
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64 |
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65 for(int h=0; h < pluginPaths.count(); h++) |
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66 { |
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67 QString path = pluginPaths.at(h); |
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68 QDir dir(path); |
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69 QStringList filters("*.manifest"); |
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70 |
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71 for(int i=0; i < dir.entryList(filters, QDir::Files).count(); ++i) |
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72 { |
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73 QString fileName = dir.entryList(filters, QDir::Files).at(i); |
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74 |
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75 HsStateProviderManifest manifest; |
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76 manifest.loadFromXml(dir.absoluteFilePath(fileName)); |
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77 |
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78 if(manifest.loadOnQuery()) |
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79 { |
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80 QList<HsStateToken> tokens = manifest.states(); |
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81 for(int j=0; j < tokens.count(); ++j) |
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82 { |
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83 HsStateToken token = tokens.at(j); |
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84 IHsStateProvider* provider = loadProviderFromPlugin(token.mLibrary); |
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85 if(provider) |
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86 { |
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87 states << provider->states(); |
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88 delete provider; |
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89 } |
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90 } |
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91 } |
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92 else |
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93 { |
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94 states << manifest.states(); |
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95 } |
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96 } |
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97 } |
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98 return states; |
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99 } |
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100 |
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101 QState* HsStateFactoryPrivate::createState(const HsStateToken& aToken) |
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102 { |
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103 IHsStateProvider* provider = loadProviderFromPlugin(aToken.mLibrary); |
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104 if(!provider) |
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105 { |
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106 HSDEBUG("Widget creation failed - No provider.") |
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107 return 0; |
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108 } |
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109 |
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110 QState* state = provider->createState(aToken); |
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111 delete provider; |
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112 if(!state) |
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113 { |
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114 HSDEBUG("State creation failed.") |
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115 } |
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116 return state; |
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117 } |
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118 |
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119 IHsStateProvider* HsStateFactoryPrivate::loadProviderFromPlugin(const QString& aPluginName) |
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120 { |
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121 QStringList pluginPaths; |
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122 |
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123 //Check plugin dirs from root of different drives |
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124 QFileInfoList drives = QDir::drives(); |
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125 for(int i=0; i < drives.count(); i++) |
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126 { |
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127 QFileInfo drive = drives.at(i); |
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128 QString driveLetter = drive.absolutePath(); |
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129 QString path = driveLetter + mPluginDirectory; |
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130 if(QDir(path).exists()) |
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131 { |
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132 pluginPaths << path; |
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133 } |
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134 } |
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135 |
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136 |
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137 //Check plugin dir relative to current dir |
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138 if(QDir(mPluginManifestDirectory).exists() && !pluginPaths.contains(QDir(mPluginDirectory).absolutePath())) |
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139 { |
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140 pluginPaths << mPluginDirectory; |
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141 } |
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142 |
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143 IHsStateProvider* provider = 0; |
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144 QPluginLoader loader; |
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145 QObject* plugin = 0; |
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146 |
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147 for(int i=0; i < pluginPaths.count(); i++) |
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148 { |
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149 QString path = pluginPaths.at(i); |
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150 QString fileName = QDir(path).absoluteFilePath(aPluginName); |
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151 |
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152 loader.setFileName(fileName); |
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153 plugin = loader.instance(); |
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154 provider = qobject_cast<IHsStateProvider*>(plugin); |
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155 if(provider) |
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156 { |
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157 return provider; |
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158 } |
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159 |
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160 //Don't leak memory if provider not IHsStateProvider |
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161 if(plugin) |
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162 { |
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163 HSDEBUG("State provider load - !provider, deleting plugin.") |
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164 delete plugin; |
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165 } |
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166 } |
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167 |
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168 HSDEBUG("State provider load failed - Not found.") |
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169 return 0; |
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170 } |
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171 |
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172 /*! |
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173 \class HsStateFactory |
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174 \ingroup group_hsstatemodel |
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175 \brief Finds and creates home screen states. |
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176 State factory finds home screen states from state provider |
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177 plugins. The search is done based on given plugin manifest |
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178 and plugin binary directories. Found states are returned as |
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179 a list of state tokens. State factory creates an instance of |
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180 a state base on a state token that is given to it. |
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181 */ |
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182 |
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183 /*! |
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184 Constructor. |
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185 \a aPluginManifestDirectory Directory that contains plugin manifests. |
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186 \a aPluginDirectory Directory that contains plugin binaries. |
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187 \a aParent Parent object. |
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188 */ |
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189 HsStateFactory::HsStateFactory(const QString& aPluginManifestDirectory, |
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190 const QString& aPluginDirectory, |
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191 QObject* aParent) |
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192 : QObject(aParent) |
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193 { |
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194 mD = new HsStateFactoryPrivate(this); |
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195 mD->mPluginManifestDirectory = aPluginManifestDirectory; |
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196 mD->mPluginDirectory = aPluginDirectory; |
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197 } |
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198 |
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199 |
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200 /*! |
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201 Destructor. |
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202 */ |
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203 HsStateFactory::~HsStateFactory() |
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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 Returns found states as a list of state tokens. |
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210 */ |
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211 QList<HsStateToken> HsStateFactory::states() |
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212 { |
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213 return mD->states(); |
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214 } |
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215 |
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216 /*! |
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217 Creates and returns a state based on the given token. |
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218 \a aToken Identifies the state to be created. |
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219 |
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220 Returns The created state. |
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221 */ |
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222 QState* HsStateFactory::createState(const HsStateToken& aToken) |
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223 { |
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224 return mD->createState(aToken); |
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225 } |