package com.smartgwt.sample.showcase.client.portal;

import java.util.ArrayList;
import java.util.List;

import com.google.gwt.core.client.GWT;
import com.smartgwt.client.bean.BeanFactory;
import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.data.Record;
import com.smartgwt.client.tools.EditNode;
import com.smartgwt.client.tools.EditPane;
import com.smartgwt.client.tools.HiddenPalette;
import com.smartgwt.client.tools.ListPalette;
import com.smartgwt.client.tools.PaletteNode;
import com.smartgwt.client.types.AnimationAcceleration;
import com.smartgwt.client.util.SC;
import com.smartgwt.client.widgets.AnimationCallback;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.HTMLFlow;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridField;
import com.smartgwt.client.widgets.layout.HLayout;
import com.smartgwt.client.widgets.layout.Layout;
import com.smartgwt.client.widgets.layout.LayoutSpacer;
import com.smartgwt.client.widgets.layout.PortalLayout;
import com.smartgwt.client.widgets.layout.VLayout;

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

public class GridPortletSample implements EntryPoint {

private VLayout vLayout;

private static boolean enabledReflection = false;

public interface MetaFactory extends BeanFactory.MetaFactory {
    	BeanFactory<Canvas> getCanvasBeanFactory();
    }

private static void enableReflection() {
    	if (!enabledReflection) {
    		GWT.create(MetaFactory.class);
    		enabledReflection = true;
    	}
    }

@Override
    public void onModuleLoad() {
    	enableReflection();

ListPalette palette = createPalette();
    
    	HiddenPalette extraPalette = new HiddenPalette();
    	PaletteNode extraPaletteNode = new PaletteNode();
    	extraPaletteNode.setTitle("ListGridField");
    	extraPaletteNode.setType("ListGridField");
    	extraPalette.setData(extraPaletteNode);

EditPane editPane = new EditPane();
    	editPane.setBorder("1px solid black");
    	editPane.setExtraPalettes(extraPalette);

editPane.setDefaultPalette(palette);

// Make the new editPane the default Edit Context for the palette,
    	// to support double-clicking on paletteNodes to create them.
    	palette.setDefaultEditContext(editPane);

// Add a PortalLayout to the editPane
    	PaletteNode node = new PaletteNode();
    	node.setType("PortalLayout");
    	PortalLayout defaults = new PortalLayout();
    	defaults.setWidth100();
    	defaults.setHeight100();
    	defaults.setCanResizePortlets(true);
    	node.setCanvasDefaults(defaults);
        EditNode editNode = editPane.addFromPaletteNode(node);
        editPane.getEditContext().setDefaultParent(editNode);

HLayout hLayout = new HLayout();
    	hLayout.setWidth100();
    	hLayout.setHeight100();
    	hLayout.setMembersMargin(20);
    	hLayout.setMembers(palette, editPane);

vLayout = new VLayout();
    	vLayout.setWidth100();
    	vLayout.setHeight100();
    	vLayout.setMembersMargin(10);
    	vLayout.setMembers(createButtonBar(editPane), hLayout);

vLayout.draw();
	}

private ListPalette createPalette() {
    	ListPalette palette = new ListPalette();
    	palette.setWidth(150);
    	palette.setLeaveScrollbarGap(false);

// The regular TileGrid property "fields"
    	palette.setFields(new ListGridField("title", "DataSource Name"));

// We are supplying the component data inline for this example.
    	// However, ListPalette is a subclass of ListGrid, so you could
    	// also use a DataSource.
    	palette.setData(getPaletteData());

return palette;
    }

// specify paletteNodes that will create ListGrids bound to specific DataSources
    private static Record[] getPaletteData() {
    	List<PaletteNode> nodes = new ArrayList<PaletteNode>();

PaletteNode node = new PaletteNode();
    	node.setTitle("Animals");
    	node.setType("ListGrid");
    	ListGrid defaults = new ListGrid();
    	defaults.setDataSource(DataSource.get("animals"));
    	defaults.setAutoFetchData(true);
    	defaults.setShowFilterEditor(true);
    	node.setCanvasDefaults(defaults);
    	nodes.add(node);

node = new PaletteNode();
    	node.setTitle("Supply Categories");
    	node.setType("ListGrid");
    	defaults = new ListGrid();
    	defaults.setDataSource(DataSource.get("supplyCategory"));
    	defaults.setAutoFetchData(true);
    	defaults.setShowFilterEditor(true);
    	node.setCanvasDefaults(defaults);
    	nodes.add(node);

node = new PaletteNode();
    	node.setTitle("Supply Items");
    	node.setType("ListGrid");
    	defaults = new ListGrid();
    	defaults.setDataSource(DataSource.get("supplyItem"));
    	defaults.setAutoFetchData(true);
    	defaults.setShowFilterEditor(true);
    	node.setCanvasDefaults(defaults);
    	nodes.add(node);

return nodes.toArray(new PaletteNode[] {});
    }

public Layout createButtonBar(final EditPane editPane) {
    	IButton destroyAndRecreateButton = new IButton("Destroy and Recreate");
    	destroyAndRecreateButton.setAutoFit(true);
    	destroyAndRecreateButton.addClickHandler(new ClickHandler() {
			public void onClick(ClickEvent event) {
				// We save the editPane node data in a variable
				final String paletteNodes = editPane.serializeAllEditNodes();

// Animate the disappearance of the editPane, since otherwise
				// everything happens at once.
				editPane.animateFade(0, new AnimationCallback() {
					public void execute(boolean earlyFinish) {
						// Once the animation is finished, destroy all the nodes
						editPane.destroyAll();

// Then add them back from the serialized form
						editPane.addPaletteNodesFromXML(paletteNodes);

// And make us visible again
						editPane.setOpacity(100);
					}
				}, 2000, AnimationAcceleration.SMOOTH_END);
			}
		});

LayoutSpacer leftSpace = new LayoutSpacer();
    	leftSpace.setWidth("*");

HLayout layout = new HLayout();
    	layout.setWidth100();
    	layout.setHeight(30);
    	layout.setMembersMargin(10);

layout.setMembers(leftSpace, destroyAndRecreateButton);

return layout;
    }

}