Mercurial > dive4elements > river
annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/DatacageWidget.java @ 909:794d1af42987
Clone Artifacts and add them to the current Collection in the WspDatacagePanel.
flys-client/trunk@2766 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Thu, 15 Sep 2011 16:02:23 +0000 |
parents | 2b6efb8b2301 |
children | a1a5dc2b9e34 |
rev | line source |
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1 package de.intevation.flys.client.client.ui; |
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2 |
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3 import de.intevation.flys.client.client.event.DatacageHandler; |
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4 |
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5 import com.google.gwt.core.client.GWT; |
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6 |
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7 import com.google.gwt.user.client.rpc.AsyncCallback; |
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8 |
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9 import com.smartgwt.client.util.SC; |
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10 |
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11 import com.smartgwt.client.widgets.Button; |
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12 |
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13 import com.smartgwt.client.widgets.tree.Tree; |
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14 import com.smartgwt.client.widgets.tree.TreeGrid; |
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15 import com.smartgwt.client.widgets.tree.TreeNode; |
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16 |
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17 import com.smartgwt.client.types.TreeModelType; |
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18 |
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19 import com.smartgwt.client.widgets.layout.VLayout; |
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20 |
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21 import com.smartgwt.client.widgets.events.ClickHandler; |
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22 import com.smartgwt.client.widgets.events.ClickEvent; |
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23 |
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24 import com.smartgwt.client.widgets.grid.ListGridRecord; |
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25 |
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26 import com.smartgwt.client.widgets.grid.events.RecordDoubleClickEvent; |
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27 import com.smartgwt.client.widgets.grid.events.RecordDoubleClickHandler; |
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28 |
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29 import de.intevation.flys.client.shared.model.Artifact; |
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30 import de.intevation.flys.client.shared.model.User; |
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31 import de.intevation.flys.client.shared.model.ToLoad; |
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32 |
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33 import de.intevation.flys.client.client.FLYSConstants; |
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34 import de.intevation.flys.client.client.Config; |
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35 |
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36 import de.intevation.flys.client.client.services.MetaDataService; |
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37 import de.intevation.flys.client.client.services.MetaDataServiceAsync; |
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38 |
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39 import de.intevation.flys.client.shared.model.DataCageTree; |
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40 import de.intevation.flys.client.shared.model.DataCageNode; |
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41 import de.intevation.flys.client.shared.model.AttrList; |
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42 |
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43 import java.util.ArrayList; |
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44 import java.util.List; |
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45 import java.util.Stack; |
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46 |
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47 // TODO: refactor, extract ~DataCageGrid |
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48 public class DatacageWidget |
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49 extends VLayout |
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50 { |
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51 protected MetaDataServiceAsync metaDataService = |
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52 GWT.create(MetaDataService.class); |
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53 |
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54 protected FLYSConstants messages = |
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55 GWT.create(FLYSConstants.class); |
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56 |
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57 protected Artifact artifact; |
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58 protected User user; |
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59 protected String outs; |
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60 |
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61 protected TreeGrid treeGrid; |
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62 protected Tree tree; |
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63 |
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64 protected ToLoad toLoad; |
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65 |
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66 protected List<DatacageHandler> handlers; |
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67 |
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68 |
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69 public DatacageWidget() { |
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70 handlers = new ArrayList<DatacageHandler>(); |
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71 } |
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72 |
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73 |
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74 public DatacageWidget(Artifact artifact, User user) { |
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75 this(artifact, user, null); |
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76 } |
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77 |
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78 public DatacageWidget(Artifact artifact, User user, String outs) { |
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79 this(artifact, user, outs, true); |
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80 } |
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81 |
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82 public DatacageWidget(Artifact artifact, User user, String outs, |
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83 boolean showButton) { |
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84 this(); |
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85 |
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86 this.artifact = artifact; |
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87 this.user = user; |
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88 this.outs = outs; |
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89 |
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90 toLoad = new ToLoad(); |
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91 |
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92 setWidth100(); |
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93 |
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94 tree = new Tree(); |
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95 tree.setModelType(TreeModelType.PARENT); |
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96 tree.setNameProperty("name"); |
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97 tree.setIdField("id"); |
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98 tree.setParentIdField("parent-id"); |
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99 |
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100 treeGrid = new TreeGrid(); |
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101 treeGrid.setLoadDataOnDemand(false); |
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102 treeGrid.setWidth100(); |
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103 treeGrid.setHeight100(); |
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104 treeGrid.setShowRoot(false); |
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105 |
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106 treeGrid.addRecordDoubleClickHandler(new RecordDoubleClickHandler() { |
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107 @Override |
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108 public void onRecordDoubleClick(RecordDoubleClickEvent event) { |
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109 doubleClickedOnTree(event); |
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110 } |
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111 }); |
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112 |
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113 addMember(treeGrid); |
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114 |
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115 if (showButton) { |
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116 addMember(createPlusButton()); |
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117 } |
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118 |
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119 triggerTreeBuilding(); |
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120 } |
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121 |
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122 |
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123 /** |
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124 * @param handler Handler to be added (notified on add-action). |
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125 */ |
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126 public DatacageWidget(Artifact artifact, User user, String outs, |
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127 DatacageHandler handler) { |
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128 this(artifact, user, outs); |
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129 this.addDatacageHandler(handler); |
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130 } |
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131 |
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132 |
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133 /** |
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134 * @param handler Handler to be added (notified on add-action). |
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135 */ |
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136 public void addDatacageHandler(DatacageHandler handler) { |
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137 if (!handlers.contains(handler)) { |
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138 handlers.add(handler); |
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139 } |
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140 } |
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141 |
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142 |
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143 /** |
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144 * @param handler Handler to remove from list. |
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145 */ |
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146 public void removeDatacageHandler(DatacageHandler handler) { |
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147 handlers.remove(handler); |
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148 } |
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149 |
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150 |
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151 public ToLoad getToLoad() { |
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152 return toLoad; |
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153 } |
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154 |
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155 |
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156 public ToLoad getSelection() { |
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157 // Reset content of toLoads. |
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158 toLoad = new ToLoad(); |
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159 |
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160 if (treeGrid == null) { |
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161 return toLoad; |
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162 } |
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163 |
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164 ListGridRecord [] selection = treeGrid.getSelection(); |
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165 |
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166 if (selection != null) { |
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167 for (ListGridRecord record: selection) { |
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168 if (record instanceof TreeNode) { |
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169 collectToLoads((TreeNode)record); |
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170 } |
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171 } |
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172 } |
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173 |
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174 return toLoad; |
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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 * Callback for add-button. |
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180 * Fires to load for every selected element and handler. |
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181 */ |
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182 public void plusClicked() { |
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183 if (!getSelection().isEmpty()) { |
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184 fireToLoad(); |
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185 } |
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186 } |
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187 |
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188 |
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189 protected Button createPlusButton() { |
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190 // TODO: i18n + icon |
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191 Button plusBtn = new Button("+"); |
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192 plusBtn.addClickHandler(new ClickHandler() { |
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193 @Override |
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194 public void onClick(ClickEvent event) { |
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195 plusClicked(); |
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196 } |
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197 }); |
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198 return plusBtn; |
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199 } |
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200 |
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201 |
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202 protected void fireToLoad() { |
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203 for (DatacageHandler handler: handlers) { |
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204 handler.toLoad(toLoad); |
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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 protected void doubleClickedOnTree(RecordDoubleClickEvent event) { |
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210 |
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211 TreeNode node = (TreeNode)event.getRecord(); |
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212 collectToLoads(node); |
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213 destroy(); |
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214 } |
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215 |
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216 |
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217 protected void collectToLoads(TreeNode node) { |
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218 Stack<TreeNode> stack = new Stack<TreeNode>(); |
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219 |
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220 stack.push(node); |
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221 |
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222 while (!stack.isEmpty()) { |
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223 node = stack.pop(); |
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224 String factory = node.getAttribute("factory"); |
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225 if (factory != null) { // we need at least a factory |
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226 String artifact = node.getAttribute("artifact-id"); |
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227 String out = node.getAttribute("out"); |
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228 String name = node.getAttribute("facet"); |
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229 String ids = node.getAttribute("ids"); |
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230 |
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231 toLoad.add(artifact, factory, out, name, ids); |
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232 } |
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233 TreeNode [] children = tree.getChildren(node); |
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234 if (children != null) { |
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235 for (TreeNode child: children) { |
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236 stack.push(child); |
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237 } |
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238 } |
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239 } |
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240 } |
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241 |
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242 |
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243 protected void triggerTreeBuilding() { |
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244 Config config = Config.getInstance(); |
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245 String url = config.getServerUrl(); |
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246 String locale = config.getLocale(); |
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247 |
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248 String artifactId = artifact.getUuid(); |
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249 String userId = (user != null) ? user.identifier() : null; |
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250 |
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251 metaDataService.getMetaData( |
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252 url, locale, |
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253 artifactId, |
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254 userId, |
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255 outs, |
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256 new AsyncCallback<DataCageTree>() { |
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257 public void onFailure(Throwable caught) { |
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258 GWT.log("Could not load meta data."); |
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259 SC.warn(caught.getMessage()); |
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260 } |
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261 |
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262 public void onSuccess(DataCageTree dcTree) { |
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263 GWT.log("Successfully loaded meta data."); |
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264 tree.setData(treeToData(dcTree)); |
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265 treeGrid.setData(tree); |
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266 } |
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267 }); |
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268 } |
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269 |
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270 private static class IdGenerator { |
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271 protected int current; |
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272 |
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273 public IdGenerator() { |
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274 } |
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275 |
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276 public IdGenerator(int start) { |
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277 current = start; |
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278 } |
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279 |
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280 public int next() { |
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281 return current++; |
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282 } |
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283 } // class IdGenerator |
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284 |
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285 protected static void buildRecursive( |
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286 DataCageNode node, |
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287 int parentId, |
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288 IdGenerator idGenerator, |
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289 List<TreeNode> nodes |
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290 ) { |
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291 TreeNode tn = new TreeNode(); |
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292 int id = idGenerator.next(); |
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293 tn.setAttribute("parent-id", parentId); |
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294 tn.setAttribute("id", id); |
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295 // TODO: i18n |
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296 tn.setAttribute("name", node.getDescription()); |
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297 tn.setAttribute("facet", node.getName()); |
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298 nodes.add(tn); |
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299 AttrList attrs = node.getAttributes(); |
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300 if (attrs != null) { |
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301 for (int i = 0, N = attrs.size(); i < N; ++i) { |
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302 String key = attrs.getKey(i); |
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303 String value = attrs.getValue(i); |
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304 tn.setAttribute(key, value); |
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305 } |
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306 } |
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307 List<DataCageNode> children = node.getChildren(); |
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308 if (children != null) { |
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309 for (DataCageNode child: children) { |
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310 buildRecursive(child, id, idGenerator, nodes); |
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311 } |
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312 } |
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313 } |
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314 |
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315 |
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316 protected static TreeNode [] treeToData(DataCageTree tree) { |
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317 List<TreeNode> nodes = new ArrayList<TreeNode>(); |
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318 |
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319 DataCageNode root = tree.getRoot(); |
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320 |
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321 IdGenerator idGenerator = new IdGenerator(); |
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322 |
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323 buildRecursive(root, idGenerator.next(), idGenerator, nodes); |
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324 |
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325 return nodes.toArray(new TreeNode[nodes.size()]); |
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326 } |
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327 } |
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328 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |