Mercurial > dive4elements > river

annotate flys-client/src/main/java/de/intevation/flys/client/client/ui/LoadingPanel.java @ 4253:a1bc5b8cff0f

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Refactor GaugePanel to create it's own SectionStackSection The GaugePanel constructor now creates a SectionStackSection instead of using a provided one. Improve the rendering of the GaugePanel by having access to the SmartGWT wrapper (WidgetCanvas) object for the GWT Tree (GaugeTree) directly. Add methods to close and open the section. Also add a getter for the section.
author Björn Ricks <bjoern.ricks@intevation.de>
date Thu, 25 Oct 2012 13:52:58 +0200
parents 360e22afb98b
children
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 com.google.gwt.core.client.GWT;
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4 import com.google.gwt.user.client.Timer;
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5 import com.google.gwt.user.client.rpc.AsyncCallback;
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6
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7 import com.smartgwt.client.types.Alignment;
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8 import com.smartgwt.client.types.Positioning;
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9 import com.smartgwt.client.types.VerticalAlignment;
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10 import com.smartgwt.client.widgets.Canvas;
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11 import com.smartgwt.client.widgets.Img;
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12 import com.smartgwt.client.widgets.Label;
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13 import com.smartgwt.client.widgets.events.ClickEvent;
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14 import com.smartgwt.client.widgets.events.ClickHandler;
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15 import com.smartgwt.client.widgets.layout.HLayout;
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16 import com.smartgwt.client.widgets.layout.VLayout;
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18 import de.intevation.flys.client.client.Config;
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19 import de.intevation.flys.client.client.FLYSConstants;
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20 import de.intevation.flys.client.client.event.HasStepBackHandlers;
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21 import de.intevation.flys.client.client.event.StepBackEvent;
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22 import de.intevation.flys.client.client.event.StepBackHandler;
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23 import de.intevation.flys.client.client.services.DescribeArtifactService;
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24 import de.intevation.flys.client.client.services.DescribeArtifactServiceAsync;
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25 import de.intevation.flys.client.shared.model.Artifact;
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26 import de.intevation.flys.client.shared.model.ArtifactDescription;
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27 import de.intevation.flys.client.shared.model.CalculationMessage;
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28 import de.intevation.flys.client.shared.model.DataList;
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29
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30 import java.util.ArrayList;
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31 import java.util.List;
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32
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34 public class LoadingPanel extends Canvas implements HasStepBackHandlers {
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36 private static final long serialVersionUID = -7806425431408987601L;
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37
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38 public static final int UPDATE_INTERVAL = 1000 * 3;
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39
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40 public static final DescribeArtifactServiceAsync describe =
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41 GWT.create(DescribeArtifactService.class);
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42
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43 private FLYSConstants MSG = GWT.create(FLYSConstants.class);
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46 protected List<StepBackHandler> handlers;
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47
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48 protected CollectionView parent;
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49 protected Artifact artifact;
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50
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51 protected VLayout dialog;
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52 protected HLayout cancelRow;
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53 protected Label msg;
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54 protected Label title;
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56 protected int i;
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57
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58
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59 public LoadingPanel(CollectionView parent, Artifact artifact) {
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60 super();
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61
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62 this.handlers = new ArrayList<StepBackHandler>();
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63 this.parent = parent;
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64 this.artifact = artifact;
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65 this.msg = new Label("");
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66 this.title = new Label("");
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67 this.dialog = createDialog();
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68
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69 this.i = 0;
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70
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71 initLayout();
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72 startTimer();
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73 }
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76 private void initLayout() {
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77 setWidth("100%");
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78 setHeight("98%");
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79 setBackgroundColor("#7f7f7f");
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80 setOpacity(50);
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81 setPosition(Positioning.RELATIVE);
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82
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83 parent.addChild(this);
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84 parent.addChild(dialog);
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85 dialog.moveTo(0, 20);
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86 moveTo(0, 7);
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87 }
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89
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90 public void setArtifact(Artifact artifact) {
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91 this.artifact = artifact;
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92 }
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93
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94
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95 public Artifact getArtifact() {
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96 return artifact;
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97 }
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98
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99
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100 @Override
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101 public void addStepBackHandler(StepBackHandler handler) {
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102 if (handler != null) {
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103 handlers.add(handler);
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104 }
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105 }
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106
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107
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108 /**
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109 * This method is called after the user has clicked the button to cancel the
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110 * current process.
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111 *
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112 * @param e The StepBackEvent.
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113 */
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114 protected void fireStepBackEvent(StepBackEvent e) {
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115 for (StepBackHandler handler: handlers) {
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116 handler.onStepBack(e);
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117 }
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118 }
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119
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120
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121 protected VLayout createDialog() {
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122
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123 String baseUrl = GWT.getHostPageBaseURL();
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124
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125 title.setStyleName("loading-title");
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126 title.setHeight(25);
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127 title.setWidth100();
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128
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129 msg.setStyleName("loading-message");
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130 msg.setValign(VerticalAlignment.TOP);
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131 msg.setWidth100();
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132 msg.setHeight(100);
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133
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134 Img img = new Img(baseUrl + MSG.loadingImg(), 25, 25);
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135
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136 Label cancelLabel = new Label(MSG.cancelCalculationLabel());
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137 Img cancel = new Img(baseUrl + MSG.cancelCalculation(), 25, 25);
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138 cancel.addClickHandler(new ClickHandler() {
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139 @Override
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140 public void onClick(ClickEvent e) {
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141 cancel();
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142 }
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143 });
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144
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145 cancelRow = new HLayout();
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146 cancelRow.setHeight(27);
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147 cancelRow.setWidth100();
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148 cancelRow.addMember(cancel);
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149 cancelRow.addMember(cancelLabel);
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150
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151 VLayout box = new VLayout();
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152 box.setStyleName("loading-box");
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153 box.setAlign(VerticalAlignment.TOP);
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154 box.setDefaultLayoutAlign(VerticalAlignment.TOP);
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155 box.addMember(title);
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156 box.addMember(msg);
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157 box.addMember(cancelRow);
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158 box.setMembersMargin(0);
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159 box.setHeight(125);
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160 box.setWidth(275);
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161
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162 dialog = new VLayout();
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163 dialog.setAlign(Alignment.CENTER);
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164 dialog.setDefaultLayoutAlign(Alignment.CENTER);
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165 dialog.setMembersMargin(5);
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166 dialog.setHeight100();
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167 dialog.setWidth100();
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168
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169 dialog.addMember(img);
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170 dialog.addMember(box);
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171
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172 return dialog;
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173 }
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174
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175
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176 public String getTargetState() {
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177 ArtifactDescription desc = getArtifact().getArtifactDescription();
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178 DataList[] oldData = desc.getOldData();
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179
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180 return oldData[oldData.length -1].getState();
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181 }
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182
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183
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184 private void startTimer() {
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185 Timer t = new Timer() {
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186 @Override
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187 public void run() {
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188 update();
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189 }
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190 };
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191 t.schedule(UPDATE_INTERVAL);
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192 }
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193
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194
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195 protected void update() {
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196 updateMessage();
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197
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198 final Config config = Config.getInstance();
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199 final String locale = config.getLocale();
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200
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201 describe.describe(locale, artifact, new AsyncCallback<Artifact>() {
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202 @Override
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203 public void onFailure(Throwable t) {
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204 GWT.log("Error while DESCRIBE artifact: " + t.getMessage());
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205
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206 startTimer();
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207 }
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208
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209 @Override
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210 public void onSuccess(Artifact artifact) {
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211 GWT.log("Successfully DESCRIBE artifact.");
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212
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213 setArtifact(artifact);
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214
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215 if (artifact.isInBackground()) {
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216 startTimer();
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217 }
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218 else {
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219 finish();
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220 }
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221 }
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222 });
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223 }
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224
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225
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226 protected void updateMessage() {
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227 List<CalculationMessage> messages = artifact.getBackgroundMessages();
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228 if (messages != null && messages.size() > 0) {
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229 CalculationMessage calcMsg = messages.get(0);
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230 title.setContents(getStepTitle(calcMsg));
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231 msg.setContents(calcMsg.getMessage());
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232 }
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233 else {
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234 title.setContents(MSG.calculationStarted());
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235 }
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236 }
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237
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238
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239 protected String getStepTitle(CalculationMessage msg) {
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240 return MSG.step() + " " + msg.getCurrentStep() + "/" + msg.getSteps();
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241 }
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242
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243
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244 private void cancel() {
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245 fireStepBackEvent(new StepBackEvent(getTargetState()));
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246 parent.removeChild(dialog);
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247 parent.removeChild(this);
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248 }
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249
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250
862
c9549074ecd1 Parse Artifact's 'background-processing' attribute and lock the UI if this attribute is true.
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251 private void finish() {
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252 parent.removeChild(dialog);
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253 parent.removeChild(this);
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ea9a73782de4 Bugfix: #321 Refresh the parameter list after a calculation is finished.
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254 parent.setArtifact(artifact);
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255 }
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256 }
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257 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org