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: Implementation of the IAlfAttributeOwner interface |
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15 * for AlfWidget. |
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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 #include <alf/alfexceptions.h> |
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21 #include "alf/alfattribute.h" |
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22 #include <alf/alfwidgetcontrol.h> |
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23 #include <alf/ialfelement.h> |
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24 #include <osn/ustring.h> |
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25 #include "alf/attrproperty.h" |
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26 #include "alf/alfattributecontainer.h" |
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27 #include <alf/alfwidgetcommand.h> |
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28 |
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29 |
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30 #include "alfwidgetattributeownerimpl.h" |
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31 |
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32 using namespace duiuimodel; |
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33 |
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34 namespace Alf |
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35 { |
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36 |
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37 // --------------------------------------------------------------------------- |
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38 // Constructor. |
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39 // --------------------------------------------------------------------------- |
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40 // |
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41 AlfWidgetAttributeOwnerImpl::AlfWidgetAttributeOwnerImpl( |
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42 CAlfWidgetControl* aControl) : |
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43 mControl(aControl) |
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44 { |
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45 mAttributeList.setAutoDelete(true); |
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46 } |
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47 |
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48 // --------------------------------------------------------------------------- |
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49 // Destructor. |
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50 // --------------------------------------------------------------------------- |
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51 // |
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52 AlfWidgetAttributeOwnerImpl::~AlfWidgetAttributeOwnerImpl() |
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53 { |
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54 mAttributeList.clear(); |
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55 } |
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56 |
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57 // --------------------------------------------------------------------------- |
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58 // From class IAlfInterfaceBase. |
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59 // Getter for interfaces provided by the widget. |
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60 // --------------------------------------------------------------------------- |
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61 // |
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62 IAlfInterfaceBase* AlfWidgetAttributeOwnerImpl::makeInterface( |
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63 const IfId& aType) |
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64 { |
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65 UString param(aType.mImplementationId); |
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66 if (param == IAlfAttributeOwner::type().mImplementationId) |
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67 { |
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68 return static_cast<IAlfAttributeOwner*>(this); |
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69 } |
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70 return 0; |
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71 } |
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72 |
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73 // --------------------------------------------------------------------------- |
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74 // Get the number of available attributes. |
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75 // From class IAlfAttributeOwner. |
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76 // --------------------------------------------------------------------------- |
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77 // |
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78 int AlfWidgetAttributeOwnerImpl::attributeCount() const |
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79 { |
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80 int count = mAttributeList.count(); |
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81 // Add control attribute count. |
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82 IAlfAttributeOwner* control = |
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83 IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(mControl); |
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84 if (control) |
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85 { |
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86 count += control->attributeCount(); |
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87 // Add root element attribute count |
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88 for (int i = 0; i < mControl->numElements(); i++) |
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89 { |
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90 IAlfElement& element = mControl->element(i); |
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91 if (element.parentElement() == 0) |
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92 { |
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93 // Get the attribute interface |
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94 IAlfAttributeOwner* attributeOwner = |
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95 IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(&element); |
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96 |
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97 if (attributeOwner) |
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98 { |
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99 count += attributeOwner->attributeCount(); |
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100 } |
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101 } |
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102 } |
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103 } |
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104 |
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105 return count; |
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106 } |
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107 |
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108 // --------------------------------------------------------------------------- |
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109 // Gets the attribute with the given name. |
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110 // From class IAlfAttributeOwner. |
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111 // --------------------------------------------------------------------------- |
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112 // |
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113 const AlfAttribute* AlfWidgetAttributeOwnerImpl::getAttribute( |
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114 const UString& aAttribName) const |
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115 { |
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116 const AlfAttribute* attribute = 0; |
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117 |
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118 // Try to find from widget |
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119 for (int i = 0; i < mAttributeList.count(); i++) |
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120 { |
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121 if (!strcmp(aAttribName.getUtf8(), mAttributeList[i]->name())) |
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122 { |
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123 attribute = mAttributeList[i]; |
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124 break; |
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125 } |
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126 } |
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127 |
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128 if (!attribute) |
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129 { |
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130 // Try to find from control |
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131 IAlfAttributeOwner* control = |
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132 IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(mControl); |
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133 |
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134 if (control) |
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135 { |
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136 attribute = control->getAttribute(aAttribName); |
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137 } |
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138 |
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139 if (!attribute) |
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140 { |
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141 // Try to find from root elements |
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142 for (int i = 0; i < mControl->numElements(); i++) |
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143 { |
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144 IAlfElement& element = mControl->element(i); |
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145 if (element.parentElement() == 0) |
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146 { |
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147 // Get the attribute interface |
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148 IAlfAttributeOwner* attributeOwner = |
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149 IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(&element); |
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150 |
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151 if (attributeOwner) |
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152 { |
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153 attribute = attributeOwner->getAttribute(aAttribName); |
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154 if (attribute) |
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155 { |
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156 break; |
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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 } |
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162 |
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163 } |
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164 |
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165 return attribute; |
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166 } |
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167 |
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168 // --------------------------------------------------------------------------- |
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169 // Set a value of an attribute. |
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170 // From class IAlfAttributeOwner. |
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171 // --------------------------------------------------------------------------- |
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172 // |
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173 bool AlfWidgetAttributeOwnerImpl::setAttribute(const AlfAttribute& aAttribute) |
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174 { |
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175 // The attribute must have at least one value set. |
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176 if (!aAttribute.getTargetValueCount()) |
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177 { |
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178 ALF_THROW( |
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179 AlfAttributeException, EInvalidAttribute, "AlfWidgetAttributeOwnerImpl") |
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180 } |
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181 |
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182 if (canHandleAttribute(aAttribute.name())) |
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183 { |
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184 // Check whether the attribute exists already. |
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185 int i = 0; |
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186 for (i = 0; i < mAttributeList.count() ; i++) |
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187 { |
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188 if (!strcmp(aAttribute.name(), mAttributeList[i]->name())) |
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189 { |
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190 // Attribute exists already, modify the contents. |
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191 *mAttributeList[i] = aAttribute; |
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192 handleAttribute(*mAttributeList[i]); |
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193 return true; |
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194 } |
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195 } |
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196 |
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197 // Attribute with the given name does not exist, |
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198 // clone the given attribute and insert it in the list. |
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199 mAttributeList.resize(mAttributeList.count() + 1); |
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200 // Insert cannot fail because already resized. |
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201 mAttributeList.insert(mAttributeList.count(), |
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202 const_cast<AlfAttribute&>(aAttribute).clone()); |
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203 handleAttribute(*mAttributeList[i]); |
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204 return true; |
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205 } |
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206 |
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207 bool supported(false); |
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208 bool sendevent(true); |
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209 |
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210 // Let the control try to handle attribute. |
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211 IAlfAttributeOwner* control = |
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212 IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(mControl); |
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213 if (control) |
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214 { |
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215 supported = control->setAttribute(aAttribute); |
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216 } |
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217 |
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218 // Let the root elements try to handle attribute |
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219 if (!supported) |
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220 { |
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221 supported = handleElementAttribute(aAttribute); |
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222 sendevent = false; //event already sent |
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223 } |
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224 |
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225 //inform env of attribute setting |
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226 if (supported && sendevent) |
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227 { |
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228 UString target; |
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229 auto_ptr<AlfAttribute> attribute(new (EMM) AlfAttribute()); |
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230 *attribute.get() = aAttribute; |
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231 TAlfWidgetAttributeCommand command(attribute.get(), target, mControl->widget()); |
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232 attribute.release(); |
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233 command.ExecuteL(mControl->Env()); |
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234 } |
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235 |
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236 return (supported); |
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237 } |
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238 |
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239 // --------------------------------------------------------------------------- |
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240 // Set a value of an attribute. |
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241 // From class IAlfAttributeOwner. |
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242 // --------------------------------------------------------------------------- |
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243 // |
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244 bool AlfWidgetAttributeOwnerImpl::setAttribute( |
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245 const UString& aAttribName, AlfAttributeValueType* aValue) |
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246 { |
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247 if (!aValue) |
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248 { |
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249 ALF_THROW( |
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250 AlfAttributeException, EInvalidAttribute, "AlfWidgetAttributeOwnerImpl") |
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251 } |
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252 |
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253 // Create a new attribute. |
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254 auto_ptr<AlfAttribute> attribute( |
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255 new (EMM) AlfAttribute(aAttribName.getUtf8(), AlfAttribute::EStatic)); |
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256 attribute->addTargetValue(aValue); |
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257 |
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258 return setAttribute(*attribute.get()); |
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259 } |
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260 // --------------------------------------------------------------------------- |
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261 // Set a value of an attribute. |
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262 // From class IAlfAttributeOwner. |
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263 // --------------------------------------------------------------------------- |
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264 // |
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265 bool AlfWidgetAttributeOwnerImpl::setAttribute( const UString& aTargetId , |
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266 AlfAttribute& aAttribute ) |
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267 { |
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268 |
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269 bool supported(false); |
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270 |
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271 // The attribute must have at least one value set. |
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272 if (!aAttribute.getTargetValueCount()) |
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273 { |
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274 ALF_THROW( |
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275 AlfAttributeException, EInvalidAttribute, "AlfWidgetAttributeOwnerImpl") |
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276 } |
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277 |
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278 if (!aTargetId.isEmpty() |
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279 && mControl) |
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280 { |
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281 |
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282 // Try to find from control |
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283 IAlfAttributeOwner* control = |
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284 IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(mControl); |
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285 if (control) |
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286 { |
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287 supported = control->setAttribute(aTargetId, aAttribute); |
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288 } |
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289 |
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290 if (!supported) |
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291 { |
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292 // Try finding element class using targetId |
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293 IAlfElement* elem = mControl->findElement(aTargetId.getUtf8()); |
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294 if (elem) |
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295 { |
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296 IAlfAttributeOwner* elementOwner = IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(elem); |
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297 if (elementOwner) |
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298 { |
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299 supported = elementOwner->setAttribute(aTargetId, aAttribute); |
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300 } |
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301 } |
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302 } |
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303 } |
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304 |
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305 //inform env of attribute change |
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306 if (supported) |
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307 { |
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308 UString target(aTargetId); |
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309 auto_ptr<AlfAttribute> attribute(new (EMM) AlfAttribute()); |
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310 *attribute.get() = aAttribute; |
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311 TAlfWidgetAttributeCommand command(attribute.get(), target, mControl->widget()); |
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312 attribute.release(); |
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313 command.ExecuteL(mControl->Env()); |
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314 } |
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315 |
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316 return supported; |
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317 |
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318 } |
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319 |
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320 // --------------------------------------------------------------------------- |
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321 // Set a value of an attribute. |
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322 // From class IAlfAttributeOwner. |
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323 // --------------------------------------------------------------------------- |
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324 // |
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325 bool AlfWidgetAttributeOwnerImpl::setAttribute( const UString& aTargetId, |
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326 const UString& aAttribName, |
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327 AlfAttributeValueType* aValue ) |
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328 { |
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329 bool ret(false); |
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330 |
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331 if (!aValue) |
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332 { |
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333 ALF_THROW( |
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334 AlfAttributeException, EInvalidAttribute, "AlfWidgetAttributeOwnerImpl") |
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335 } |
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336 |
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337 if (!aTargetId.isEmpty()) |
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338 { |
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339 // Create a new static attribute. |
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340 auto_ptr<AlfAttribute> attribute( |
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341 new (EMM) AlfAttribute(aAttribName.getUtf8(), AlfAttribute::EStatic)); |
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342 attribute->addTargetValue(aValue); |
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343 ret = setAttribute(aTargetId, *attribute.get()); |
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344 |
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345 } |
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346 |
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347 return ret; |
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348 |
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349 } |
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350 |
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351 // --------------------------------------------------------------------------- |
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352 // Gets the attribute with the given name. |
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353 // From class IAlfAttributeOwner. |
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354 // --------------------------------------------------------------------------- |
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355 // |
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356 const AlfAttribute* AlfWidgetAttributeOwnerImpl::getAttribute( const UString& aTargetId, |
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357 const UString& aAttribName ) const |
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358 { |
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359 const AlfAttribute* attr(0); |
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360 |
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361 if (!aTargetId.isEmpty() |
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362 && mControl) |
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363 { |
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364 |
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365 // Try to find from control |
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366 IAlfAttributeOwner* control = |
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367 IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(mControl); |
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368 if (control) |
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369 { |
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370 attr = control->getAttribute(aTargetId, aAttribName); |
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371 } |
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372 |
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373 if (!attr) |
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374 { |
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375 // Try finding element class from control |
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376 IAlfElement* element = mControl->findElement(aTargetId.getUtf8()); |
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377 |
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378 if (element) |
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379 { |
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380 // Get the attribute interface |
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381 IAlfAttributeOwner* attributeOwner = |
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382 IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(element); |
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383 |
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384 if (attributeOwner) |
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385 { |
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386 attr = attributeOwner->getAttribute(aTargetId, aAttribName); |
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387 } |
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388 } |
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389 } |
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390 } |
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391 |
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392 return attr; |
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393 |
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394 } |
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395 |
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396 // --------------------------------------------------------------------------- |
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397 // Sets the attributes from container |
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398 // From class IAlfAttributeOwner. |
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399 // --------------------------------------------------------------------------- |
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400 // |
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401 bool AlfWidgetAttributeOwnerImpl::setAttributeContainer( AlfAttributeContainer& aAttributeContainer ) |
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402 { |
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403 |
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404 bool ret(true); |
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405 |
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406 for (int i=0;i<aAttributeContainer.attributeCount();i++) |
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407 { |
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408 AlfAttribute& attr = aAttributeContainer.getAttribute(i); |
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409 bool supported = setAttribute(attr); |
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410 if (!supported) |
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411 { |
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412 ret = false; |
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413 } |
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414 } |
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415 |
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416 return ret; |
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417 |
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418 } |
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419 |
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420 // --------------------------------------------------------------------------- |
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421 // Sets the attributes from container using targetId |
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422 // From class IAlfAttributeOwner. |
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423 // --------------------------------------------------------------------------- |
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424 // |
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425 |
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426 bool AlfWidgetAttributeOwnerImpl::setAttributeContainer( const UString& aTargetId , |
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427 AlfAttributeContainer& aAttributeContainer ) |
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428 { |
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429 bool ret(true); |
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430 |
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431 if (!aTargetId.isEmpty() ) |
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432 { |
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433 for (int i=0;i<aAttributeContainer.attributeCount();i++) |
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434 { |
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435 AlfAttribute& attr = aAttributeContainer.getAttribute(i); |
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436 bool supported = setAttribute(aTargetId, attr); |
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437 if (!supported) |
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438 { |
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439 ret = false; |
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440 } |
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441 } |
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442 } |
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443 |
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444 return ret; |
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445 |
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446 } |
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447 |
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448 // --------------------------------------------------------------------------- |
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449 // Handles the attribute, sets proper values. |
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450 // --------------------------------------------------------------------------- |
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451 // |
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452 bool AlfWidgetAttributeOwnerImpl::handleElementAttribute( |
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453 const AlfAttribute& aAttribute) |
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454 { |
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455 bool supported(false); |
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456 |
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457 // Let the root elements try to handle attribute |
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458 const char* attrName = aAttribute.name(); // for debuging |
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459 int elementCount = mControl->numElements(); |
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460 for (int i = 0; i < elementCount; i++) |
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461 { |
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462 IAlfElement& element = mControl->element(i); |
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463 if (element.parentElement() == 0) |
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464 { |
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465 // Get the attribute interface |
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466 IAlfAttributeOwner* attributeOwner = |
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467 IAlfInterfaceBase::makeInterface<IAlfAttributeOwner>(&element); |
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468 |
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469 if (attributeOwner) |
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470 { |
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471 // let all IAlfAttributeOwners set the attribute |
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472 if (attributeOwner->setAttribute(aAttribute)) |
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473 { |
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474 UString target(element.name()); |
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475 auto_ptr<AlfAttribute> attribute(new (EMM) AlfAttribute()); |
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476 *attribute.get() = aAttribute; |
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477 TAlfWidgetAttributeCommand command(attribute.get(), target, mControl->widget()); |
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478 attribute.release(); |
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479 command.ExecuteL(mControl->Env()); |
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480 supported = true; |
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481 } |
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482 } |
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483 } |
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484 } |
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485 |
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486 return supported; |
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487 } |
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488 |
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489 // --------------------------------------------------------------------------- |
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490 // Handles the attribute, sets proper values. |
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491 // --------------------------------------------------------------------------- |
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492 // |
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493 void AlfWidgetAttributeOwnerImpl::handleAttribute( |
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494 const AlfAttribute& /*aAttribute*/) |
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495 { |
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496 // Add common widget specific attribute handling here |
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497 } |
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498 |
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499 // --------------------------------------------------------------------------- |
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500 // Can attribute be handled with this widget. |
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501 // --------------------------------------------------------------------------- |
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502 // |
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503 bool AlfWidgetAttributeOwnerImpl::canHandleAttribute( |
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504 const char* /*aAttributeName*/) |
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505 { |
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506 bool canHandle(false); |
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507 // Add common wigdet specific attribute checking here like: |
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508 /* if (!strcmp(aAttributeName, commonvisualattributes::KOpacity)) |
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509 { |
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510 canHandle = true; |
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511 }*/ |
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512 return canHandle; |
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513 } |
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514 |
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515 } // namespace Alf |
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