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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; |
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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; |
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/** |
* A tree displaying a set of email folders. |
*/ |
public class StationList extends Composite { |
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// Barre de navigation |
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private class NavBar extends Composite implements ClickListener { |
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public final DockPanel bar = new DockPanel(); |
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public final Button gotoFirst = new Button("<<", this); |
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public final Button gotoNext = new Button(">", this); |
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public final Button gotoPrev = new Button("<", this); |
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public final Button gotoEnd = new Button(">>", this); |
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public final HTML status = new HTML(); |
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public NavBar() { |
initWidget(bar); |
bar.setStyleName("navbar"); |
status.setStyleName("status"); |
status.setWordWrap(false); |
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HorizontalPanel buttons = new HorizontalPanel(); |
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buttons.add(status); |
buttons.setCellHorizontalAlignment(status, |
HasHorizontalAlignment.ALIGN_RIGHT); |
buttons.setCellVerticalAlignment(status, |
HasVerticalAlignment.ALIGN_MIDDLE); |
buttons.setCellWidth(status, "100%"); |
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buttons.add(gotoFirst); |
buttons.add(gotoPrev); |
buttons.add(gotoNext); |
buttons.add(gotoEnd); |
bar.add(buttons, DockPanel.EAST); |
bar.setCellHorizontalAlignment(buttons, DockPanel.ALIGN_RIGHT); |
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bar.setCellHorizontalAlignment(buttons, DockPanel.ALIGN_LEFT); |
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bar.setVerticalAlignment(DockPanel.ALIGN_MIDDLE); |
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} |
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public void onClick(Widget sender) { |
if (sender == gotoNext) { |
// Move forward a page. |
startIndex += VISIBLE_STATION_COUNT; |
if (startIndex >= count) |
startIndex -= VISIBLE_STATION_COUNT; |
} else { |
if (sender == gotoPrev) { |
// Move back a page. |
startIndex -= VISIBLE_STATION_COUNT; |
if (startIndex < 0) |
startIndex = 0; |
} else { |
if (sender == gotoEnd) { |
gotoEnd(); |
} else { |
if (sender == gotoFirst) { |
startIndex = 0; |
} |
} |
} |
} |
update(); |
} |
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} |
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private static final int VISIBLE_STATION_COUNT = 10; |
private static final String VALUE_UNKNOWN = "Inconnues"; |
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private Grid header = new Grid(1, 2); |
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private Grid selector = new Grid(1, 2); |
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private FlexTable table = new FlexTable(); |
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private VerticalPanel outer = new VerticalPanel(); |
private VerticalPanel inner = new VerticalPanel(); |
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private int startIndex = 0; |
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private String user; |
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private String serviceBaseUrl = null; |
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private String location = "all"; |
private String station = "all"; |
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private NavBar navBar=null; |
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private int count = 65000; |
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// Tous selectionné |
private int selectedRow = -1; |
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private Mediator mediator = null; |
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public StationList(Mediator med) { |
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mediator=med; |
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mediator.registerStationList(this); |
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user=mediator.getUser(); |
serviceBaseUrl = mediator.getServiceBaseUrl(); |
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navBar = new NavBar(); |
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// Mise en forme du header |
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header.setCellSpacing(0); |
header.setCellPadding(2); |
header.setWidth("100%"); |
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header.setStyleName("station-ListHeader"); |
header.setWidget(0, 1,navBar); |
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selector.setCellSpacing(0); |
selector.setCellPadding(0); |
selector.setWidth("100%"); |
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selector.setHTML(0, 0, "Toutes"); |
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selector.getCellFormatter().setWidth(0, 0, "100%"); |
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// Hook up events. |
selector.addTableListener(new TableListener () { |
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public void onCellClicked(SourcesTableEvents sender, int row, int cell) { |
styleRow(selectedRow, false); |
selector.getRowFormatter().addStyleName(0, "station-SelectedRow"); |
mediator.onStationSelected("all"); |
station="all"; |
} |
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}); |
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selector.setStyleName("station-ListElement"); |
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// Mise en forme du contenu |
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table.setCellSpacing(0); |
table.setBorderWidth(0); |
table.setCellPadding(2); |
table.setWidth("100%"); |
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table.setStyleName("station-ListElement"); |
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outer.add(header); |
inner.add(selector); // Toutes station |
inner.add(table); |
inner.setStyleName("station-List"); |
inner.setWidth("100%"); |
outer.setWidth("100%"); |
outer.add(inner); |
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// Hook up events. |
table.addTableListener(new TableListener () { |
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public void onCellClicked(SourcesTableEvents sender, int row, int cell) { |
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selectRow(row); |
String astation=table.getText(row,cell); |
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if (astation.compareTo(VALUE_UNKNOWN)!=0) { |
station=astation; |
mediator.onStationSelected(astation); |
} |
else { |
station="000null"; |
mediator.onStationSelected("000null"); |
} |
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} |
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}); |
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styleRow(selectedRow, false); |
selector.getRowFormatter().addStyleName(0, "station-SelectedRow"); |
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initWidget(outer); |
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} |
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/** |
* Recherche nombre d'enregistrement pour l'utilisateur en cours |
* |
* |
*/ |
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public void updateCount() { |
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setStatusDisabled(); |
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HTTPRequest.asyncGet(serviceBaseUrl + "/InventoryStationList/" + user + "/" + location , |
new ResponseTextHandler() { |
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public void onCompletion(String str) { |
JSONValue jsonValue = JSONParser.parse(str); |
JSONNumber jsonNumber; |
if ((jsonNumber = jsonValue.isNumber()) != null) { |
count = (int) jsonNumber.getValue(); |
update(); |
} |
} |
}); |
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} |
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private void selectRow(int row) { |
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styleRow(selectedRow, false); |
styleRow(row, true); |
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selectedRow = row; |
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} |
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private void styleRow(int row, boolean selected) { |
if (row != -1) { |
selector.getRowFormatter().removeStyleName(0, "station-SelectedRow"); |
if (selected) |
table.getRowFormatter().addStyleName(row, "station-SelectedRow"); |
else |
if (row < table.getRowCount()) { |
table.getRowFormatter().removeStyleName(row, "station-SelectedRow"); |
} |
} |
} |
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/** |
* |
* 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 |
* |
*/ |
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public void update() { |
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setStatusDisabled(); |
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HTTPRequest.asyncGet(serviceBaseUrl + "/InventoryStationList/" + user + "/" + location + "/" |
+ startIndex + "/" + VISIBLE_STATION_COUNT, |
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new ResponseTextHandler() { |
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public void onCompletion(String str) { |
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JSONValue jsonValue = JSONParser.parse(str); |
JSONArray jsonArray; |
JSONArray jsonArrayNested; |
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int row=0; |
int i=0; |
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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; |
} |
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String astation=((JSONString)jsonArrayNested.get(0)).stringValue(); |
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if (astation.compareTo("000null")!=0) { |
table.setText(row, 0,astation); |
} |
else { |
table.setText(row, 0,VALUE_UNKNOWN); |
} |
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if (astation.compareTo(station)==0) { |
styleRow(row, true); |
} |
else { |
styleRow(row, false); |
} |
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table.getFlexCellFormatter().setWidth(row, 0, "100%"); |
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} |
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} |
} |
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if (station.compareTo("all")==0) { |
selector.getRowFormatter().addStyleName(0, "station-SelectedRow"); |
} |
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// Suppression fin ancien affichage |
if (i<table.getRowCount()) { |
for (int j = table.getRowCount() -1 ; j >= i; j--) { |
table.removeRow(j); |
} |
} |
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setStatusEnabled(); |
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} |
}); |
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} |
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public void setLocation(String location) { |
this.location = location; |
} |
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/* |
* Positionnement index de parcours (this.startIndex) pour affichage de la |
* dernière page |
* |
* @param |
* @return void |
*/ |
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private void gotoEnd() { |
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if ((count == 0) || (count % VISIBLE_STATION_COUNT) > 0) { |
startIndex = count - (count % VISIBLE_STATION_COUNT); |
} else { |
startIndex = count - VISIBLE_STATION_COUNT; |
} |
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} |
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/** |
* Affichage message d'attente et désactivation navigation |
* |
* @param |
* @return void |
*/ |
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private void setStatusDisabled() { |
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navBar.gotoFirst.setEnabled(false); |
navBar.gotoPrev.setEnabled(false); |
navBar.gotoNext.setEnabled(false); |
navBar.gotoEnd.setEnabled(false); |
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setStatusText("Patientez ..."); |
} |
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/** |
* Affichage numero de page et gestion de la navigation |
* |
*/ |
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private void setStatusEnabled() { |
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// Il y a forcemment un disabled avant d'arriver ici |
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if (count > 0) { |
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if (startIndex >= VISIBLE_STATION_COUNT) { // Au dela de la |
// premiere page |
navBar.gotoPrev.setEnabled(true); |
navBar.gotoFirst.setEnabled(true); |
if (startIndex < (count - VISIBLE_STATION_COUNT)) { // Pas la |
// derniere |
// page |
navBar.gotoNext.setEnabled(true); |
navBar.gotoEnd.setEnabled(true); |
setStatusText((startIndex + 1) + " - " |
+ (startIndex + VISIBLE_STATION_COUNT) + " sur " + count ); |
} else { // Derniere page |
setStatusText((startIndex + 1) + " - " + count + " sur " + count ); |
} |
} else { // Premiere page |
if (count > VISIBLE_STATION_COUNT) { // Des pages derrieres |
navBar.gotoNext.setEnabled(true); |
navBar.gotoEnd.setEnabled(true); |
setStatusText((startIndex + 1) + " - " |
+ (startIndex + VISIBLE_STATION_COUNT) + " sur " + count); |
} else { |
setStatusText((startIndex + 1) + " - " + count + " sur " + count); |
} |
} |
} |
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else { // Pas d'inventaire, pas de navigation |
setStatusText("0 - 0 sur 0"); |
} |
} |
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private void setStatusText(String text) { |
navBar.status.setText(text); |
} |
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public void setUser(String user) { |
this.user = user; |
} |
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public void setStation(String station) { |
this.station = station; |
} |
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} |