com.agnie.gwt.common.client.widget.FormFieldContainer.java Source code

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Here is the source code for com.agnie.gwt.common.client.widget.FormFieldContainer.java

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/*******************************************************************************
 * Copyright (c) 2014 Agnie Technologies.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     Agnie Technologies - initial API and implementation
 ******************************************************************************/
package com.agnie.gwt.common.client.widget;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.DivElement;
import com.google.gwt.dom.client.SpanElement;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiChild;
import com.google.gwt.uibinder.client.UiFactory;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * Its common widget which will encapsulate all the components related to one form filed
 * <p>
 * <ul>
 * <li>Label of a field</li>
 * <li>Can mark required field</li>
 * <li>Container for input field</li>
 * <li>Place to show validation error message</li>
 * </ul>
 * </p>
 * 
 */
public class FormFieldContainer extends Composite {

    private static FormFieldResources resource = FormFieldResources.INSTANCE;

    static {
        resource.css().ensureInjected();
    }

    interface MyUiBinder extends UiBinder<Widget, FormFieldContainer> {
    }

    private static MyUiBinder uiBinder = GWT.create(MyUiBinder.class);

    @UiField
    protected SpanElement label;
    @UiField
    protected SpanElement required;
    @UiField
    protected SpanElement error;
    @UiField
    protected SpanElement desc;
    protected HTMLPanel container;
    @UiField
    protected SimplePanel inputContainer;

    @UiField
    DivElement labelDiv;

    public FormFieldContainer() {
        this(null, null, false);
    }

    public boolean autoHide = false;
    private Timer timer = null;
    private static final int TIMEOUT = 20000;

    public FormFieldContainer(String label, Widget inputFieldContainer, boolean required) {
        container = (HTMLPanel) uiBinder.createAndBindUi(this);
        container.addStyleName(resource.css().formFieldContainer());
        initWidget(container);
        setLabel(label);
        addInputFieldContainer(inputFieldContainer);
        setRequired(required);

        timer = new Timer() {

            @Override
            public void run() {
                errorFixed();
            }
        };
    }

    public void setLabel(String label) {
        if (label != null && !("".equals(label))) {
            this.label.setInnerText(label);
        }
    }

    public void setDesc(String desc) {
        if (desc != null && !("".equals(desc))) {
            this.desc.setInnerText(desc);
        }
    }

    @UiChild
    public void addInputFieldContainer(Widget inputFieldContainer) {
        if (inputFieldContainer != null) {
            inputContainer.add(inputFieldContainer);
        }
    }

    public void setRequired(boolean required) {
        if (required) {
            this.required.setInnerText("*");
        } else {
            this.required.setInnerText("");
        }
    }

    public void setError(String errorMessage, boolean autoHide) {
        if (autoHide) {
            timer.schedule(TIMEOUT);
        }
        inputContainer.getElement().getFirstChildElement().addClassName(resource.css().formFieldError());
        this.error.setInnerText(errorMessage);
    }

    public void errorFixed() {
        inputContainer.getElement().getFirstChildElement().removeClassName(resource.css().formFieldError());
        this.error.setInnerText("");
    }

    @UiFactory
    public static FormFieldResources getResources() {
        return resource;
    }

}