/*
 * Isomorphic SmartGWT web presentation layer
 * Copyright 2000 and beyond Isomorphic Software, Inc.
 *
 * OWNERSHIP NOTICE
 * Isomorphic Software owns and reserves all rights not expressly granted in this source code,
 * including all intellectual property rights to the structure, sequence, and format of this code
 * and to all designs, interfaces, algorithms, schema, protocols, and inventions expressed herein.
 *
 *  If you have any questions, please email <sourcecode@isomorphic.com>.
 *
 *  This entire comment must accompany any portion of Isomorphic Software source code that is
 *  copied or moved from this file.
 */
package com.smartgwt.sample.showcase.client.componentXML;

import com.smartgwt.client.core.Function;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.rpc.RPCManager;
import com.smartgwt.client.util.SC;
import com.smartgwt.client.widgets.Button;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.form.DynamicForm;
import com.smartgwt.client.widgets.form.fields.SelectItem;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.events.RecordClickEvent;
import com.smartgwt.client.widgets.grid.events.RecordClickHandler;
import com.smartgwt.client.widgets.layout.VLayout;
import com.smartgwt.client.widgets.tab.Tab;
import com.smartgwt.client.widgets.tab.TabSet;
import com.smartgwt.client.widgets.form.fields.ButtonItem;

import com.google.gwt.core.client.EntryPoint;

public class ScreenReuse implements EntryPoint {

TabSet tabSet;
    
    @Override
    public void onModuleLoad() {
        
        final DynamicForm selectorForm = new DynamicForm();
        selectorForm.setWidth("100%");
        SelectItem selector = new SelectItem("selector");
        selector.setValueMap("countryDS", "supplyItem", "worldDS");
        selector.setTitle("Select a DataSource");
        
        ButtonItem button = new ButtonItem();
        button.setTitle("Create Screen");
        button.setWidth(120);
        button.addClickHandler(new com.smartgwt.client.widgets.form.fields.events.ClickHandler() {
            @Override
            public void onClick(com.smartgwt.client.widgets.form.fields.events.ClickEvent event) {
                if (selectorForm.getValueAsString("selector") != null) {
                    switchTo(selectorForm.getValueAsString("selector"));
                }
            }
        });
        
        selectorForm.setFields(selector, button);
        
        tabSet = new TabSet();
        
        final VLayout layout = new VLayout();
        layout.setWidth("100%");
        layout.setHeight("90%");
        layout.setMembersMargin(10);
        layout.setMembers(selectorForm, tabSet);
        
        RPCManager.cacheScreens(new String[]{"screenReuse"}, new Function() {

@Override
            public void execute() {
                switchTo("countryDS");
            }
        });
        layout.draw();
    }

private void switchTo(String dataSource) {
        
        // create a new Tab
        Tab tab = new Tab(dataSource);

// create screen
        Canvas screen = RPCManager.createScreen("screenReuse");

// get the components we want to use by their local ID
        final Button saveButton = (Button)screen.getByLocalId("saveButton");//new Button(screen.getByLocalId("saveButton").getJsObj());
        final DynamicForm editForm = (DynamicForm)screen.getByLocalId("editForm");//new DynamicForm(screen.getByLocalId("editForm").getJsObj());
        final ListGrid listGrid = (ListGrid)screen.getByLocalId("listGrid");//new ListGrid(screen.getByLocalId("listGrid").getJsObj());
        
        // set DataSource
        editForm.setDataSource(DataSource.get(dataSource));
        listGrid.setDataSource(DataSource.get(dataSource));
            
        // set handlers
        listGrid.addRecordClickHandler(new RecordClickHandler() {
                
            public void onRecordClick(RecordClickEvent event) {
                editForm.clearErrors(true);
                editForm.editRecord(event.getRecord());
                saveButton.enable();
            }
        });
            
        saveButton.addClickHandler(new ClickHandler() {				
            public void onClick(ClickEvent event) {
                editForm.saveData();
            }
        });
            
        tab.setPane(screen);
        tabSet.addTab(tab);
        tabSet.selectTab(tab);
       }

}