Table Single Row Click Event
package com.java2s.gwt.client;
import java.util.*;
import java.util.Set;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.SourcesTableEvents;
import com.google.gwt.user.client.ui.TableListener;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.History;
import com.google.gwt.user.client.HistoryListener;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.rpc.ServiceDefTarget;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.SourcesTableEvents;
import com.google.gwt.user.client.ui.TableListener;
public class GWTClient implements EntryPoint, HistoryListener {
private Table table;
private void getData(){
ArrayList values = new ArrayList();
values.add( new Person ("A", "H", "E", "6" ));
values.add( new Person("B", "G", "E", "19" ));
values.add( new Person("C", "F", "A", "17" ));
values.add( new Person( "D", "E", "A" , "17"));
table.setSource( new SimpleDataSource( (Person[]) values.toArray( new Person[values.size()]) ) );
}
public void onModuleLoad() {
table = new Table( null, "myTable" );
table.setStyleName("myTable");
RootPanel.get().add(table);
getData();
table.addTableListener( new TableListener(){
public void onCellClicked(SourcesTableEvents sender,
int row, int cell) {
History.newItem( ""+row );
}
});
History.addHistoryListener( this );
}
public void onHistoryChanged(String historyToken){
table.onCellClicked( table, Integer.parseInt( historyToken ), 0);
}
}
class Person {
public String firstName;
public String lastName;
public String company;
public String counts;
/** Creates a new instance of Person */
public Person() {
}
public Person( String firstName, String lastName, String company, String counts ){
this.firstName = firstName;
this.lastName = lastName;
this.company = company;
this.counts = counts;
}
}
class Table extends FlexTable implements TableListener {
private String headerStyle;
private String selectedStyle;
private TableDataSource source;
private int selectedRow;
public Table(TableDataSource source, String stylePrefix) {
super();
this.setCellPadding(1);
this.setCellSpacing(0);
this.setWidth("100%");
this.selectedStyle = stylePrefix + "-selected";
this.headerStyle = stylePrefix + "-header";
this.addTableListener(this);
this.setSource( source );
sinkEvents(Event.ONMOUSEDOWN | Event.ONMOUSEUP | Event.ONMOUSEOVER |Event.ONMOUSEOUT);
}
public void onBrowserEvent(Event event) {
Element td = getEventTargetCell(event);
if (td == null) return;
Element tr = DOM.getParent(td);
switch (DOM.eventGetType(event)) {
case Event.ONMOUSEDOWN: {
DOM.setStyleAttribute(tr, "backgroundColor", "#ffce00");
onRowClick(tr);
break;
}
case Event.ONMOUSEUP: {
DOM.setStyleAttribute(tr, "backgroundColor", "#ffffff");
break;
}
case Event.ONMOUSEOVER: {
DOM.setStyleAttribute(tr, "backgroundColor", "#ffce00");
onRowRollover(tr);
break;
}
case Event.ONMOUSEOUT: {
DOM.setStyleAttribute(tr, "backgroundColor","#ffffff");
break;
}
}
}
public void onRowClick(Element event){
}
public void onRowRollover(Element event){
}
public void onCellClicked(SourcesTableEvents sender,
int row, int cell) {
this.getRowFormatter()
.removeStyleName(selectedRow, selectedStyle);
if ((source.getHeaderRow() == null) || (row > 0)) {
this.getRowFormatter()
.addStyleName(row, selectedStyle);
selectedRow = row;
}
}
public void setSource( TableDataSource source ){
for( int i = this.getRowCount(); i > 0; i-- ){
this.removeRow( 0 );
}
if( source == null ){
return;
}
int row = 0;
String[] headers = source.getHeaderRow();
if( headers != null ){
for( int i=0; i < headers.length; i++ ){
this.setText( row, i , headers[i] );
}
this.getRowFormatter().addStyleName( row, headerStyle );
row++;
}
int rows = source.getRowCount();
for( int i=0 ; i <rows; i++ ){
String[] values = source.getRow(i);
for( int col=0; col < values.length; col++ ){
this.setText( row, col, values[col] );
}
row++;
}
this.selectedRow = 0;
this.source = source;
}
}
class SimpleDataSource implements TableDataSource {
private String[] headers;
private String[][] data;
public SimpleDataSource(Person[] people) {
super();
String[] headers = { "First Name", "Last Name", "Company", "Counts" };
this.headers = headers;
this.data = new String[people.length][4];
for( int i=0; i < people.length ; i++ ){
Person p = people[i];
this.data[i][0] = p.firstName;
this.data[i][1] = p.lastName;
this.data[i][2] = p.company;
this.data[i][3] = p.counts;
}
}
public int getRowCount() {
return data.length;
}
public String[] getRow(int i) {
return data[i];
}
public String[] getHeaderRow() {
return headers;
}
}
interface TableDataSource {
public String[] getHeaderRow();
public int getRowCount();
public String[] getRow(int row);
}
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