Form.java

/**
 *  Copyright 2014-2017 Riccardo Massera (TheCoder4.Eu) and Stephan Rauh (http://www.beyondjava.net).
 *
 *  This file is part of BootsFaces.
 *
* 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 net.bootsfaces.component.form;

import java.io.IOException;

import javax.el.ValueExpression;
import javax.faces.FacesException;
import javax.faces.component.FacesComponent;
import javax.faces.context.FacesContext;

import net.bootsfaces.utils.BsfUtils;

/** This class holds the attributes of <b:form />. */
@FacesComponent(Form.COMPONENT_TYPE)
public class Form extends FormCore {

	public static final String COMPONENT_TYPE = "net.bootsfaces.component.form.Form";

	public static final String COMPONENT_FAMILY = "javax.faces.Form";

	public static final String DEFAULT_RENDERER = "javax.faces.Form";

	public Form() {
		setRendererType(DEFAULT_RENDERER);
	}

	public String getFamily() {
		return COMPONENT_FAMILY;
	}

	/**
	 * Manage EL-expression for snake-case attributes
	 */
	public void setValueExpression(String name, ValueExpression binding) {
		name = BsfUtils.snakeCaseToCamelCase(name);
		super.setValueExpression(name, binding);
	}

	/**
	 * Inline style of the input element.
	 * <P>
	 * 
	 * @return Returns the value of the attribute, or null, if it hasn't been
	 *         set by the JSF file.
	 */
	public String getStyleClass() {
		String clazz = super.getStyleClass();
		if (isHorizontal()) {
			if (clazz == null) {
				clazz = "form-horizontal";
			} else {
				clazz += " form-horizontal";
			}
		}
		if (isInline()) {
			if (clazz == null) {
				clazz = "form-inline";
			} else {
				clazz += " form-inline";
			}
		}
		return clazz;
	}

	public void encodeBegin(FacesContext context) throws IOException {
		if (isHorizontal() && isInline()) {
			throw new FacesException(
					"A b:form can't be form both inline and horizontal. Please set only one of them for form \""
							+ getClientId() + "\".");
		}
		super.encodeBegin(context);
	}
}