ComponentFactory.java

/*
 Copyright (c) 2014 Ahomé Innovation Technologies. All rights reserved.

 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 com.ait.toolkit.sencha.ext.client.ui;

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

import com.ait.toolkit.core.client.JsoHelper;
import com.ait.toolkit.sencha.ext.client.core.Component;
import com.ait.toolkit.sencha.ext.client.core.SimpleComponent;
import com.ait.toolkit.sencha.ext.client.core.config.XType;
import com.ait.toolkit.sencha.ext.client.draw.Sprite;
import com.google.gwt.core.client.JavaScriptObject;

/**
 * Component factory class.
 */
// TODO
// Finish this class
public class ComponentFactory {

	/**
	 * Return a Component from the passed native component object.
	 * 
	 * @param jsObj
	 *            native object
	 * @return the corresponding Component.
	 * @see com.ait.toolkit.sencha.ext.client.core.Component
	 */
	public static Component getComponent(JavaScriptObject jsObj) {
		Object componentJ = JsoHelper.getAttributeAsObject(jsObj, "__compJ");
		if (componentJ != null) {
			return (Component) componentJ;
		}
		String xtype = getXType(jsObj);

		if (xtype == null) {
			return null;
		}
		if (xtype.equalsIgnoreCase(XType.BOX.getValue())) {
			return new BoxComponent(jsObj);
		} else if (xtype.equalsIgnoreCase(XType.BUTTON.getValue())) {
			return Button.instance(jsObj);
		} else if (xtype.equalsIgnoreCase("datepicker")) {
			return new DatePicker(jsObj);
		}
		// } else if (xtype.equalsIgnoreCase("editor")) {
		// return new Editor(jsObj);
		// } else if (xtype.equalsIgnoreCase("editorgrid")) {
		// return new EditorGridPanel(jsObj);
		// } else if (xtype.equalsIgnoreCase("propertygrid")) {
		// return new PropertyGridPanel(jsObj);
		// } else if (xtype.equalsIgnoreCase("grid")) {
		// return new GridPanel(jsObj);
		// } else if (xtype.equalsIgnoreCase("paging")) {
		// return new PagingToolbar(jsObj);
		// } else if (xtype.equalsIgnoreCase("button")) {
		// return new Button(jsObj);
		// }
		else if (xtype.equalsIgnoreCase("panel")) {
			return new Panel(jsObj);
		}
		// else if (xtype.equalsIgnoreCase("progress")) {
		// return new ProgressBar(jsObj);
		// } else if (xtype.equalsIgnoreCase("splitbutton")) {
		// return new SplitButton(jsObj);
		// } else if (xtype.equalsIgnoreCase("tabpanel")) {
		// return new TabPanel(jsObj);
		// } else if (xtype.equalsIgnoreCase("window")) {
		// return new Window(jsObj);
		// } else if(xtype.equalsIgnoreCase("gwtwidget")) {
		// return new WidgetComponent(jsObj);
		// }
		// //toolbar components - tbitem, tbseparator, tbspacer, tbfill, tbtext,
		// tbsplit?
		// else if (xtype.equalsIgnoreCase("toolbar")) {
		// return new Toolbar(jsObj);
		// } else if (xtype.equalsIgnoreCase("tbbutton")) {
		// return new ToolbarButton(jsObj);
		// }
		// //menu items
		// else if (xtype.equalsIgnoreCase("menu-item")) {
		// return new Item(jsObj);
		// }
		// //form components
		// else if (xtype.equalsIgnoreCase("checkbox")) {
		// return new CheckBox(jsObj);
		// } else if (xtype.equalsIgnoreCase("combo")) {
		// return new ComboBox(jsObj);
		// } else if (xtype.equalsIgnoreCase("label")) {
		// return new Label(jsObj);
		// } else if (xtype.equalsIgnoreCase("datefield")) {
		// return new DateField(jsObj);
		// } else if (xtype.equalsIgnoreCase("fieldset")) {
		// return new FieldSet(jsObj);
		// } else if (xtype.equalsIgnoreCase("form")) {
		// return new FormPanel(jsObj);
		// } else if (xtype.equalsIgnoreCase("hidden")) {
		// return new Hidden(jsObj);
		// } else if (xtype.equalsIgnoreCase("htmleditor")) {
		// return new HtmlEditor(jsObj);
		// } else if (xtype.equalsIgnoreCase("numberfield")) {
		// return new NumberField(jsObj);
		// } else if (xtype.equalsIgnoreCase("radio")) {
		// return new Radio(jsObj);
		// } else if (xtype.equalsIgnoreCase("textarea")) {
		// return new TextArea(jsObj);
		// } else if (xtype.equalsIgnoreCase("textfield")) {
		// return new TextField(jsObj);
		// } else if (xtype.equalsIgnoreCase("timefield")) {
		// return new TimeField(jsObj);
		// } else {
		// throw new IllegalArgumentException("Unrecognized xtype " + xtype);
		// }

		return null;
	}

	private static native String getXType(JavaScriptObject jsObj) /*-{
		var xtype = jsObj.getXType ? jsObj.getXType() : null;
		return xtype === undefined ? null : xtype;
	}-*/;

	public static List<Component> fromJsArray(JavaScriptObject obj) {
		List<Component> toReturn = new ArrayList<Component>();
		int size = JsoHelper.getJavaScriptObjectArraySize(obj);
		for (int i = 0; i < size; i++) {
			SimpleComponent c = SimpleComponent.createComponent(JsoHelper.getValueFromJavaScriptObjectArray(obj, i));
			toReturn.add(c);
		}
		return toReturn;
	}

	public static JavaScriptObject fromArray(Component[] components) {
		JavaScriptObject array = JsoHelper.createJavaScriptArray();
		for (int i = 0; i < components.length; i++) {
			JavaScriptObject c = components[i].getOrCreateJsObj();
			JsoHelper.setArrayValue(array, i, c);
		}
		return array;
	}

	public static JavaScriptObject fromArrayOfSprite(Sprite[] components) {
		JavaScriptObject array = JsoHelper.createJavaScriptArray();
		for (int i = 0; i < components.length; i++) {
			JavaScriptObject c = components[i].getJsObj();
			JsoHelper.setArrayValue(array, i, c);
		}
		return array;
	}

	public static Component cast(Component component) {
		return getComponent(component.getOrCreateJsObj());
	}

	static native void ensureXType(String thisXtype, String componentId)/*-{
		var cmp = $wnd.Ext.getCmp(componentId);

		if (!cmp) {
			throw new Error(
					"ahome-ext Could not find component with the id :  "
							+ componentId);
		}

		if (cmp.xtype != thisXtype) {
			throw new Error(
					"You are trying to wrap a component with an incompatible xtye : "
							+ cmp.xtype
							+ ". You can only wrap components with the xtype "
							+ thisXtype + " with this component");
		}
	}-*/;

}