Mercurial > dive4elements > river
annotate gwt-client/src/main/java/org/dive4elements/river/client/client/ui/LoadingPanel.java @ 6512:c28f13c80979
GWT client: Removed obsolete imports.
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Fri, 28 Jun 2013 20:36:51 +0200 |
parents | ea9eef426962 |
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GWT client: Added copyright header.
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.client.client.ui; |
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10 |
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11 import com.google.gwt.core.client.GWT; |
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12 import com.google.gwt.user.client.Timer; |
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13 import com.google.gwt.user.client.rpc.AsyncCallback; |
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14 |
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15 import com.smartgwt.client.types.Alignment; |
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16 import com.smartgwt.client.types.Positioning; |
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17 import com.smartgwt.client.types.VerticalAlignment; |
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18 import com.smartgwt.client.widgets.Canvas; |
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19 import com.smartgwt.client.widgets.Img; |
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20 import com.smartgwt.client.widgets.Label; |
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21 import com.smartgwt.client.widgets.events.ClickEvent; |
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22 import com.smartgwt.client.widgets.events.ClickHandler; |
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23 import com.smartgwt.client.widgets.layout.HLayout; |
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24 import com.smartgwt.client.widgets.layout.VLayout; |
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25 |
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26 import org.dive4elements.river.client.client.Config; |
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27 import org.dive4elements.river.client.client.FLYSConstants; |
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28 import org.dive4elements.river.client.client.event.HasStepBackHandlers; |
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29 import org.dive4elements.river.client.client.event.StepBackEvent; |
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30 import org.dive4elements.river.client.client.event.StepBackHandler; |
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31 import org.dive4elements.river.client.client.services.DescribeArtifactService; |
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32 import org.dive4elements.river.client.client.services.DescribeArtifactServiceAsync; |
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33 import org.dive4elements.river.client.shared.model.Artifact; |
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34 import org.dive4elements.river.client.shared.model.ArtifactDescription; |
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35 import org.dive4elements.river.client.shared.model.CalculationMessage; |
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36 import org.dive4elements.river.client.shared.model.DataList; |
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37 |
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38 import java.util.ArrayList; |
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39 import java.util.List; |
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40 |
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41 |
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42 public class LoadingPanel extends Canvas implements HasStepBackHandlers { |
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43 |
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44 private static final long serialVersionUID = -7806425431408987601L; |
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45 |
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46 public static final int UPDATE_INTERVAL = 1000 * 3; |
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47 |
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48 public static final DescribeArtifactServiceAsync describe = |
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49 GWT.create(DescribeArtifactService.class); |
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50 |
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51 private FLYSConstants MSG = GWT.create(FLYSConstants.class); |
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52 |
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53 |
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54 protected List<StepBackHandler> handlers; |
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55 |
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56 protected CollectionView parent; |
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57 protected Artifact artifact; |
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58 |
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59 protected VLayout dialog; |
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60 protected HLayout cancelRow; |
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61 protected Label msg; |
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62 protected Label title; |
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63 |
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64 protected int i; |
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65 |
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66 |
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67 public LoadingPanel(CollectionView parent, Artifact artifact) { |
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68 super(); |
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69 |
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70 this.handlers = new ArrayList<StepBackHandler>(); |
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71 this.parent = parent; |
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72 this.artifact = artifact; |
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73 this.msg = new Label(""); |
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74 this.title = new Label(""); |
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75 this.dialog = createDialog(); |
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76 |
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77 this.i = 0; |
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78 |
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79 initLayout(); |
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80 startTimer(); |
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81 } |
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82 |
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83 |
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84 private void initLayout() { |
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85 setWidth("100%"); |
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86 setHeight("98%"); |
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87 setBackgroundColor("#7f7f7f"); |
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88 setOpacity(50); |
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89 setPosition(Positioning.RELATIVE); |
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90 |
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91 parent.addChild(this); |
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92 parent.addChild(dialog); |
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93 dialog.moveTo(0, 20); |
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94 moveTo(0, 7); |
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95 } |
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96 |
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97 |
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98 public void setArtifact(Artifact artifact) { |
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99 this.artifact = artifact; |
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100 } |
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101 |
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102 |
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103 public Artifact getArtifact() { |
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104 return artifact; |
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105 } |
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106 |
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107 |
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108 @Override |
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109 public void addStepBackHandler(StepBackHandler handler) { |
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110 if (handler != null) { |
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111 handlers.add(handler); |
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112 } |
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113 } |
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114 |
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115 |
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116 /** |
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117 * This method is called after the user has clicked the button to cancel the |
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118 * current process. |
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119 * |
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120 * @param e The StepBackEvent. |
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121 */ |
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122 protected void fireStepBackEvent(StepBackEvent e) { |
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123 for (StepBackHandler handler: handlers) { |
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124 handler.onStepBack(e); |
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125 } |
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126 } |
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127 |
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128 |
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129 protected VLayout createDialog() { |
1399 | 130 |
131 String baseUrl = GWT.getHostPageBaseURL(); | |
132 | |
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133 title.setStyleName("loading-title"); |
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134 title.setHeight(25); |
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135 title.setWidth100(); |
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136 |
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137 msg.setStyleName("loading-message"); |
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138 msg.setValign(VerticalAlignment.TOP); |
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139 msg.setWidth100(); |
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140 msg.setHeight(100); |
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141 |
1399 | 142 Img img = new Img(baseUrl + MSG.loadingImg(), 25, 25); |
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143 |
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144 Label cancelLabel = new Label(MSG.cancelCalculationLabel()); |
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145 Img cancel = new Img(baseUrl + MSG.cancelCalculation(), 25, 25); |
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146 cancel.addClickHandler(new ClickHandler() { |
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147 @Override |
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148 public void onClick(ClickEvent e) { |
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149 cancel(); |
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150 } |
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151 }); |
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152 |
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153 cancelRow = new HLayout(); |
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154 cancelRow.setHeight(27); |
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155 cancelRow.setWidth100(); |
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156 cancelRow.addMember(cancel); |
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157 cancelRow.addMember(cancelLabel); |
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158 |
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159 VLayout box = new VLayout(); |
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160 box.setStyleName("loading-box"); |
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161 box.setAlign(VerticalAlignment.TOP); |
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162 box.setDefaultLayoutAlign(VerticalAlignment.TOP); |
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163 box.addMember(title); |
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164 box.addMember(msg); |
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165 box.addMember(cancelRow); |
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166 box.setMembersMargin(0); |
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167 box.setHeight(125); |
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168 box.setWidth(275); |
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169 |
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170 dialog = new VLayout(); |
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171 dialog.setAlign(Alignment.CENTER); |
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172 dialog.setDefaultLayoutAlign(Alignment.CENTER); |
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173 dialog.setMembersMargin(5); |
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174 dialog.setHeight100(); |
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175 dialog.setWidth100(); |
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176 |
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177 dialog.addMember(img); |
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178 dialog.addMember(box); |
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179 |
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180 return dialog; |
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181 } |
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182 |
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183 |
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184 public String getTargetState() { |
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185 ArtifactDescription desc = getArtifact().getArtifactDescription(); |
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186 DataList[] oldData = desc.getOldData(); |
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187 |
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188 return oldData[oldData.length -1].getState(); |
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189 } |
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190 |
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191 |
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192 private void startTimer() { |
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193 Timer t = new Timer() { |
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194 @Override |
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195 public void run() { |
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196 update(); |
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197 } |
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198 }; |
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199 t.schedule(UPDATE_INTERVAL); |
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200 } |
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201 |
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202 |
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203 protected void update() { |
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204 updateMessage(); |
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205 |
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206 final Config config = Config.getInstance(); |
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207 final String locale = config.getLocale(); |
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208 |
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209 describe.describe(locale, artifact, new AsyncCallback<Artifact>() { |
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210 @Override |
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211 public void onFailure(Throwable t) { |
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212 GWT.log("Error while DESCRIBE artifact: " + t.getMessage()); |
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213 |
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214 startTimer(); |
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215 } |
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216 |
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217 @Override |
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218 public void onSuccess(Artifact artifact) { |
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219 GWT.log("Successfully DESCRIBE artifact."); |
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220 |
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221 setArtifact(artifact); |
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222 |
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223 if (artifact.isInBackground()) { |
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224 startTimer(); |
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225 } |
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226 else { |
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227 finish(); |
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228 } |
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229 } |
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230 }); |
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231 } |
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232 |
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233 |
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234 protected void updateMessage() { |
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235 List<CalculationMessage> messages = artifact.getBackgroundMessages(); |
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236 if (messages != null && messages.size() > 0) { |
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237 CalculationMessage calcMsg = messages.get(0); |
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238 title.setContents(getStepTitle(calcMsg)); |
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239 msg.setContents(calcMsg.getMessage()); |
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240 } |
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241 else { |
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242 title.setContents(MSG.calculationStarted()); |
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243 } |
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244 } |
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245 |
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246 |
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247 protected String getStepTitle(CalculationMessage msg) { |
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248 return MSG.step() + " " + msg.getCurrentStep() + "/" + msg.getSteps(); |
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249 } |
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250 |
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251 |
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252 private void cancel() { |
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253 fireStepBackEvent(new StepBackEvent(getTargetState())); |
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254 parent.removeChild(dialog); |
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255 parent.removeChild(this); |
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256 } |
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257 |
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258 |
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259 private void finish() { |
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260 parent.removeChild(dialog); |
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261 parent.removeChild(this); |
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262 parent.setArtifact(artifact); |
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263 } |
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264 } |
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265 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |