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/** 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.JSONNumber;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.Button;import com.google.gwt.user.client.ui.ClickListener;import com.google.gwt.user.client.ui.Composite;import com.google.gwt.user.client.ui.DockPanel;import com.google.gwt.user.client.ui.FlexTable;import com.google.gwt.user.client.ui.Grid;import com.google.gwt.user.client.ui.HTML;import com.google.gwt.user.client.ui.HasHorizontalAlignment;import com.google.gwt.user.client.ui.HasVerticalAlignment;import com.google.gwt.user.client.ui.HorizontalPanel;import com.google.gwt.user.client.ui.SourcesTableEvents;import com.google.gwt.user.client.ui.TableListener;import com.google.gwt.user.client.ui.VerticalPanel;import com.google.gwt.user.client.ui.Widget;/*** A tree displaying a set of email folders.*/public class LocationList extends Composite {// Barre de navigationprivate class NavBar extends Composite implements ClickListener {public final DockPanel bar = new DockPanel();public final Button gotoFirst = new Button("<<", this);public final Button gotoNext = new Button(">", this);public final Button gotoPrev = new Button("<", this);public final Button gotoEnd = new Button(">>", this);public final HTML status = new HTML();public NavBar() {initWidget(bar);bar.setStyleName("navbar");status.setStyleName("status");status.setWordWrap(false);HorizontalPanel buttons = new HorizontalPanel();buttons.add(status);buttons.setCellHorizontalAlignment(status,HasHorizontalAlignment.ALIGN_RIGHT);buttons.setCellVerticalAlignment(status,HasVerticalAlignment.ALIGN_MIDDLE);buttons.setCellWidth(status, "100%");buttons.add(gotoFirst);buttons.add(gotoPrev);buttons.add(gotoNext);buttons.add(gotoEnd);bar.add(buttons, DockPanel.EAST);bar.setCellHorizontalAlignment(buttons, DockPanel.ALIGN_RIGHT);bar.setCellHorizontalAlignment(buttons, DockPanel.ALIGN_LEFT);bar.setVerticalAlignment(DockPanel.ALIGN_MIDDLE);}public void onClick(Widget sender) {if (sender == gotoNext) {// Move forward a page.startIndex += VISIBLE_LOCATION_COUNT;if (startIndex >= count)startIndex -= VISIBLE_LOCATION_COUNT;} else {if (sender == gotoPrev) {// Move back a page.startIndex -= VISIBLE_LOCATION_COUNT;if (startIndex < 0)startIndex = 0;} else {if (sender == gotoEnd) {gotoEnd();} else {if (sender == gotoFirst) {startIndex = 0;}}}}update();}}private static final int VISIBLE_LOCATION_COUNT = 10;private static final String VALUE_UNKNOWN = "Inconnues";private Grid header = new Grid(1, 2);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";private NavBar navBar=null;private int count = 65000;// Tous selectionnéprivate int selectedRow = -1;private Mediator mediator = null;public LocationList(Mediator med) {mediator=med;mediator.registerLocationList(this);user=mediator.getUser();serviceBaseUrl = mediator.getServiceBaseUrl();navBar = new NavBar();// Mise en forme du headerheader.setCellSpacing(0);header.setCellPadding(2);header.setWidth("100%");header.setStyleName("location-ListHeader");header.setWidget(0, 1,navBar);// Mise en forme de l'entree "Toutes localités"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 du contenutable.setCellSpacing(0);table.setBorderWidth(0);table.setCellPadding(2);table.setWidth("100%");table.setStyleName("location-ListElement");// Mise en forme barre navigationnavBar.setWidth("100%");outer.add(header);inner.add(selector); // Toutes localitésinner.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");//updateCount();// update()initWidget(outer);}/*** Recherche nombre d'enregistrement pour l'utilisateur en cours***/public void updateCount() {setStatusDisabled();HTTPRequest.asyncGet(serviceBaseUrl + "/InventoryLocationList/" + user + "/" + location ,new ResponseTextHandler() {public void onCompletion(String str) {JSONValue jsonValue = JSONParser.parse(str);JSONNumber jsonNumber;if ((jsonNumber = jsonValue.isNumber()) != null) {count = (int) jsonNumber.getValue();mediator.onLocationUpdate(location);update();}}});}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");elseif (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() {setStatusDisabled();HTTPRequest.asyncGet(serviceBaseUrl + "/InventoryLocationList/" + user + "/" + location + "/"+ startIndex + "/" + VISIBLE_LOCATION_COUNT,new ResponseTextHandler() {public void onCompletion(String str) {JSONValue jsonValue = JSONParser.parse(str);JSONArray jsonArray;JSONArray jsonArrayNested;int row=0;int i=0;if ((jsonArray = jsonValue.isArray()) != null) {int arraySize = jsonArray.size();for (i = 0; i < arraySize; ++i) {if ((jsonArrayNested = jsonArray.get(i).isArray()) != null) {if (i>=table.getRowCount()) {row = table.insertRow(table.getRowCount());}else {row = i;}// LieuString 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);}else {styleRow(row, false);}table.getFlexCellFormatter().setWidth(row, 0, "100%");}}}if (location.compareTo("all")==0) {selector.getRowFormatter().addStyleName(0, "location-SelectedRow");}// Suppression fin ancien affichageif (i<table.getRowCount()) {for (int j = table.getRowCount() -1 ; j >= i; j--) {table.removeRow(j);}}setStatusEnabled();}});}public void setLocation(String location) {this.location = location;}/** Positionnement index de parcours (this.startIndex) pour affichage de la* dernière page** @param* @return void*/private void gotoEnd() {if ((count == 0) || (count % VISIBLE_LOCATION_COUNT) > 0) {startIndex = count - (count % VISIBLE_LOCATION_COUNT);} else {startIndex = count - VISIBLE_LOCATION_COUNT;}}/*** Affichage message d'attente et désactivation navigation** @param* @return void*/private void setStatusDisabled() {navBar.gotoFirst.setEnabled(false);navBar.gotoPrev.setEnabled(false);navBar.gotoNext.setEnabled(false);navBar.gotoEnd.setEnabled(false);setStatusText("Patientez ...");}/*** Affichage numero de page et gestion de la navigation**/private void setStatusEnabled() {// Il y a forcemment un disabled avant d'arriver iciif (count > 0) {if (startIndex >= VISIBLE_LOCATION_COUNT) { // Au dela de la// premiere pagenavBar.gotoPrev.setEnabled(true);navBar.gotoFirst.setEnabled(true);if (startIndex < (count - VISIBLE_LOCATION_COUNT)) { // Pas la// derniere// pagenavBar.gotoNext.setEnabled(true);navBar.gotoEnd.setEnabled(true);setStatusText((startIndex + 1) + " - "+ (startIndex + VISIBLE_LOCATION_COUNT) + " sur " + count );} else { // Derniere pagesetStatusText((startIndex + 1) + " - " + count + " sur " + count );}} else { // Premiere pageif (count > VISIBLE_LOCATION_COUNT) { // Des pages derrieresnavBar.gotoNext.setEnabled(true);navBar.gotoEnd.setEnabled(true);setStatusText((startIndex + 1) + " - "+ (startIndex + VISIBLE_LOCATION_COUNT) + " sur " + count);} else {setStatusText((startIndex + 1) + " - " + count + " sur " + count);}}}else { // Pas d'inventaire, pas de navigationsetStatusText("0 - 0 sur 0");}}private void setStatusText(String text) {navBar.status.setText(text);}}