Subversion Repositories eFlore/Archives.cel-v1

/*

 * Copyright 2006 Google Inc.

 *

 * Licensed under the Apache License, Version 2.0 (the "License"); you may not

 * use this file except in compliance with the License. You may obtain a copy of

 * the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

 * License for the specific language governing permissions and limitations under

 * the License.

 */

package org.tela_botanica.client;

import com.google.gwt.json.client.JSONArray;

import com.google.gwt.json.client.JSONParser;

import com.google.gwt.json.client.JSONString;

import com.google.gwt.json.client.JSONValue;

import com.google.gwt.user.client.HTTPRequest;

import com.google.gwt.user.client.ResponseTextHandler;

import com.google.gwt.user.client.ui.Composite;

import com.google.gwt.user.client.ui.FlexTable;

import com.google.gwt.user.client.ui.Grid;

import com.google.gwt.user.client.ui.SourcesTableEvents;

import com.google.gwt.user.client.ui.TableListener;

import com.google.gwt.user.client.ui.VerticalPanel;

/**

 * A tree displaying a set of email folders.

 */

public class LocationList extends Composite {

		private static final int VISIBLE_LOCATION_COUNT = 15;

		private static final String VALUE_UNKNOWN = "Inconnues";

		private Grid header = new Grid(1, 1);

		private Grid selector = new Grid(1, 1);

		private FlexTable table = new FlexTable();

		private VerticalPanel outer = new VerticalPanel();

		private VerticalPanel inner = new VerticalPanel();

		private int startIndex = 0;

		private String user;

		private String serviceBaseUrl = null;

		private String location = "all";

		// Tous selectionné

		private int  selectedRow = -1;

		private Mediator mediator = null;

		public LocationList(Mediator med) {

			mediator=med;

			mediator.registerLocationList(this);

			user=mediator.getUser();

			serviceBaseUrl = mediator.getServiceBaseUrl();

			// Mise en forme du header

			header.setCellSpacing(0);

			header.setCellPadding(2);

			header.setWidth("100%");

			header.setStyleName("location-ListHeader");

			header.setHTML(0, 0, "Localités                   ");  // yeah !

			header.getCellFormatter().setWidth(0, 0, "100%");

			// Mise en forme du selecteur

			selector.setCellSpacing(0);

			selector.setCellPadding(0);

			selector.setWidth("100%");

			selector.setHTML(0, 0, "Toutes");

			selector.getCellFormatter().setWidth(0, 0, "100%");

			 // Hook up events.

			selector.addTableListener(new TableListener () {

				  public void onCellClicked(SourcesTableEvents sender, int row, int cell) {

					  	styleRow(selectedRow, false);

				        selector.getRowFormatter().addStyleName(0, "location-SelectedRow");

					    mediator.onLocationSelected("all");

					  }

		    });

			selector.setStyleName("location-ListElement");

			// Mise en forme de la table.

			table.setCellSpacing(0);

			table.setBorderWidth(0);

			table.setCellPadding(2);

			table.setWidth("100%");

			table.setStyleName("location-ListElement");

			// Mise en forme barre navigation

			outer.add(header);

			inner.add(selector);

			inner.add(table);

			inner.setStyleName("location-List");

			inner.setWidth("100%");

			outer.setWidth("100%");

			outer.add(inner);

			 // Hook up events.

		    table.addTableListener(new TableListener () {

				  public void onCellClicked(SourcesTableEvents sender, int row, int cell) {

					      selectRow(row);

					      String loc=table.getText(row,cell);

					      if (loc.compareTo(VALUE_UNKNOWN)!=0) {

					    	  mediator.onLocationSelected(table.getText(row,cell));

					      }

					      else {

					    	  mediator.onLocationSelected("000null");

					      }

					  }

		    });

		  	styleRow(selectedRow, false);

	        selector.getRowFormatter().addStyleName(0, "location-SelectedRow");

		    mediator.onLocationSelected("all");

			update();

			initWidget(outer);

  }

		  private void selectRow(int row) {

		    styleRow(selectedRow, false);

		    styleRow(row, true);

		    selectedRow = row;

		  }

		  private void styleRow(int row, boolean selected) {

			    if (row != -1) {

				   selector.getRowFormatter().removeStyleName(0, "location-SelectedRow");

			      if (selected)

			        table.getRowFormatter().addStyleName(row, "location-SelectedRow");

			      else

			    	if (row < table.getRowCount()) {

			    		table.getRowFormatter().removeStyleName(row, "location-SelectedRow");

			    	}

			    }

			  }

	/**

	 *

	 * Mise a jour de l'affichage, à partir des données d'inventaire deja

	 * saisies. La valeur de this.startIndex permet de determiner quelles

	 * données seront affichées

	 *

	 */

		public void update() {

			// TODO : ne pas recreer la table a chaque fois ... : parcouris le retour, le comparer au present

			// et inserer ou supprimer s'il le faut.

			// TODO : ou alors prevoir un update pour les ajouts (forcemment à la fin) et un update pour les suppressions ...

			// Sauf qu'il y a les chgts de pages ... : oui, la un fait un update normal ...

			// TODO : despaghettiser

			HTTPRequest.asyncGet(serviceBaseUrl + "/InventoryLocationList/" + user + "/"

					+ startIndex + "/" + VISIBLE_LOCATION_COUNT,

			new ResponseTextHandler() {

				public void onCompletion(String str) {

					JSONValue jsonValue = JSONParser.parse(str);

					JSONArray jsonArray;

					JSONArray jsonArrayNested;

					for (int i = table.getRowCount() - 1; i >= 0; i--) {

							table.removeRow(i);

					}

					if (location.compareTo("all")==0) {

						styleRow(selectedRow, false);

						selector.getRowFormatter().addStyleName(0, "location-SelectedRow");

					}

					if ((jsonArray = jsonValue.isArray()) != null) {

						int arraySize = jsonArray.size();

						for (int i = 0; i < arraySize; ++i) {

							if ((jsonArrayNested = jsonArray.get(i).isArray()) != null) {

								int row = table.insertRow(table.getRowCount());

								// Lieu

								String loc=((JSONString)jsonArrayNested.get(0)).stringValue();

								if (loc.compareTo("000null")!=0) {

									table.setText(row, 0,loc);

								}

								else {

									table.setText(row, 0,VALUE_UNKNOWN);

								}

								if (loc.compareTo(location)==0) {

								  styleRow(row, true);

								}

								table.getFlexCellFormatter().setWidth(row, 0, "100%");

							}

						}

					}

				}

			});

		}

		public void setLocation(String location) {

			this.location = location;

		}

}