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/*
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/*
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 * Copyright 2006 Google Inc.
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 * Copyright 2006 Google Inc.
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 *
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 *
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 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
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 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
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 * use this file except in compliance with the License. You may obtain a copy of
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 * use this file except in compliance with the License. You may obtain a copy of
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 * the License at
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 * the License at
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 *
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 *
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 * http://www.apache.org/licenses/LICENSE-2.0
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 * http://www.apache.org/licenses/LICENSE-2.0
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 *
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 *
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 * Unless required by applicable law or agreed to in writing, software
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 * Unless required by applicable law or agreed to in writing, software
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 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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 * License for the specific language governing permissions and limitations under
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 * License for the specific language governing permissions and limitations under
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 * the License.
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 * the License.
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 */
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 */
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package org.tela_botanica.client;
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package org.tela_botanica.client;
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import com.google.gwt.json.client.JSONArray;
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import com.google.gwt.json.client.JSONBoolean;
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import com.google.gwt.json.client.JSONParser;
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import com.google.gwt.json.client.JSONString;
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import com.google.gwt.json.client.JSONValue;
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import com.google.gwt.user.client.HTTPRequest;
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import com.google.gwt.user.client.ResponseTextHandler;
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import com.google.gwt.user.client.Window;
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import com.google.gwt.user.client.ui.ClickListener;
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import com.google.gwt.user.client.ui.Composite;
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import com.google.gwt.user.client.ui.Composite;
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import com.google.gwt.user.client.ui.HTML;
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import com.google.gwt.user.client.ui.HTML;
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import com.google.gwt.user.client.ui.HorizontalPanel;
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import com.google.gwt.user.client.ui.HorizontalPanel;
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import com.google.gwt.user.client.ui.VerticalPanel;
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import com.google.gwt.user.client.ui.Label;
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import com.google.gwt.user.client.ui.Widget;
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/**
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/**
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 * Composite permet de wrapper des Widget pour creer un nouveau Widget cf methode initWidget()
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 * Composite permet de wrapper des Widget pour creer un nouveau Widget cf methode initWidget()
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 */
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 */
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public class TopPanel extends Composite {
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public class TopPanel extends Composite {
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  private Mediator mediator=null;
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  private String user =null;
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  private Label signLabel = new Label() ;
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  private String serviceBaseUrl = null;
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  public TopPanel(final Mediator med) {
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	mediator=med;
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	mediator.registerTopPanel(this);
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	user=mediator.getUser();
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   	signLabel.setStyleName("selection_label");
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    serviceBaseUrl = mediator.getServiceBaseUrl();
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    if (!mediator.getConnected()) {
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    	signLabel.setText("Connexion");
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    }
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    else {
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  public TopPanel(final Mediator med) {
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    	signLabel.setText(user+ " (deconnexion)");
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    }
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	HorizontalPanel outer = new HorizontalPanel();
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   VerticalPanel outer = new VerticalPanel();
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	HorizontalPanel inner = new HorizontalPanel();
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	outer.setHorizontalAlignment(HorizontalPanel.ALIGN_RIGHT);
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	outer.setHorizontalAlignment(HorizontalPanel.ALIGN_RIGHT);
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	 inner.add(signLabel);
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	 inner.add(new HTML("<b>Carnet en ligne</b>"));
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	 inner.setSpacing(3);
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	 outer.add(inner);
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	 signLabel.addClickListener(
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		    	new ClickListener() {
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		    		public void onClick(Widget sender) {
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		    			if (!mediator.getConnected()) {
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		    				LoginDialog loginDialog = new LoginDialog(med);
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		    				// Position it roughly in the middle of the screen.
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		    				int left = (Window.getClientWidth() - 512) / 2;
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		    				int top = (Window.getClientHeight() - 256) / 2;
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		    				loginDialog.setPopupPosition(left, top);
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		    				loginDialog.show();
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		    			}
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		    			else {
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			    			HTTPRequest.asyncGet(serviceBaseUrl + "/User/" + user    ,
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			    					new ResponseTextHandler() {
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			    						public void onCompletion(String str) {
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			    								JSONValue jsonValue = JSONParser.parse(str);
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			    								JSONArray jsonArray;
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			    								if ((jsonArray = jsonValue.isArray()) != null) {
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			    									user = ((JSONString) jsonArray.get(0)).stringValue();
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			    									mediator.setConnected(((JSONBoolean) jsonArray.get(1)).booleanValue());
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			    								}
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			    								if (!mediator.getConnected()) {
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			    									mediator.onLogoff(user);
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			    								}
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			    						}
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			    			});
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		    			}
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	 outer.add(new HTML("<b>Carnet en ligne</b>"));
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		    		}
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		     	}
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	);
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    initWidget(outer);
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  }
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public Label getSignLabel() {
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	return signLabel;
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}
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    initWidget(outer);
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  }
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}
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}