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

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Here is the source code for com.agnie.gwt.common.client.widget.DecoratedPanel.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.SpanElement;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.uibinder.client.UiBinder;
import com.google.gwt.uibinder.client.UiChild;
import com.google.gwt.uibinder.client.UiField;
import com.google.gwt.user.client.ui.Anchor;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * Creates an Decorated panel with the specified contents inside a panel content element. content element can contain a
 * child widget. close,min,max Button only visible in respective clickHandlers.
 * 
 * @param header
 *            the panel header's title.
 * @param content
 *            childWidget to add
 * 
 * 
 */
public class DecoratedPanel extends Composite {
    private static DecoratedPanelResources resource = DecoratedPanelResources.INSTANCE;

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

    interface MyUiBinder extends UiBinder<Widget, DecoratedPanel> {
    }

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

    @UiField
    protected HTMLPanel headerPan;
    @UiField
    protected SpanElement headerText;
    @UiField
    protected Anchor close;
    @UiField
    protected Anchor minimize;
    @UiField
    protected Anchor maxmize;
    protected HTMLPanel container;
    @UiField
    protected HTMLPanel contentPan;

    public DecoratedPanel() {
        this(null, null);
    }

    public DecoratedPanel(String header) {
        this(header, null);
    }

    public DecoratedPanel(String header, Widget content) {

        container = (HTMLPanel) uiBinder.createAndBindUi(this);
        initWidget(container);

        headerPan.addStyleName(resource.css().headerPan());
        contentPan.addStyleName(resource.css().contentPan());
        container.addStyleName(resource.css().decPanel());

        setHeader(header);
        addContent(content);
        this.close.setVisible(false);
        this.maxmize.setVisible(false);
        this.minimize.setVisible(false);
    }

    /**
     * sets header title
     * 
     * @param header
     *            String title for header
     */
    public void setHeader(String header) {
        if (header != null && !("".equals(header))) {
            this.headerText.setInnerText(header);
        }
    }

    /**
     * add widget to panel
     * 
     * @param content
     *            widget to add
     */
    @UiChild
    public void addContent(Widget content) {
        if (content != null) {
            this.contentPan.add(content.asWidget());
        }
    }

    /**
     * remove an widget from panel content
     * 
     * @param content
     *            widget to remove
     */
    public void remove(Widget content) {
        if (content != null) {
            this.contentPan.remove(content);
        }
    }

    /**
     * clears the content element of decorated panel
     */
    public void clear() {
        this.contentPan.clear();
    }

    /**
     * clickHandler for close button.Also sets close button visible.
     * 
     * @param handler
     *            click handler for close button.
     */
    public void addCloseHandler(ClickHandler handler) {
        this.close.setVisible(true);
        this.close.addClickHandler(handler);
    }

    /**
     * clickHandler for minimise button.Also sets minimise button visible.
     * 
     * @param handler
     *            click handler for minimise button.
     */
    public void minimizeClickHandler(ClickHandler handler) {
        this.minimize.setVisible(true);
        this.minimize.addClickHandler(handler);
    }

    /**
     * clickHandler for maximise button.Also sets maximise button visible.
     * 
     * @param handler
     *            click handler for maximise button.
     */
    public void maxmizeClickHandler(ClickHandler handler) {
        this.maxmize.setVisible(true);
        this.maxmize.addClickHandler(handler);
    }

    public static DecoratedPanelResources getResources() {
        return resource;
    }
}