org.cruxframework.crux.widgets.client.tabcontainer.FlapController.java Source code

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Here is the source code for org.cruxframework.crux.widgets.client.tabcontainer.FlapController.java

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/*
 * Copyright 2014 cruxframework.org.
 * 
 * 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 org.cruxframework.crux.widgets.client.tabcontainer;

import org.cruxframework.crux.core.client.screen.Screen;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyDownEvent;
import com.google.gwt.event.dom.client.KeyDownHandler;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FocusWidget;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;

/**
 * 
 * @author Thiago da Rosa de Bustamante
 *
 */
public class FlapController extends Composite {
    private Label title;
    private FocusWidget closeButton;
    private final boolean closeable;

    /**
     * @param tabs
     * @param tabId
     * @param tabLabel
     * @param closeable
     */
    public FlapController(final TabContainer tabs, final String tabId, String tabLabel, boolean asHTML,
            boolean closeable) {
        this.closeable = closeable;
        HorizontalPanel flap = new HorizontalPanel();

        initWidget(flap);

        flap.setSpacing(0);

        if (asHTML) {
            title = new HTML(tabLabel);
        } else {
            title = new Label(tabLabel);
        }
        title.setStyleName("flapLabel");
        flap.add(title);

        if (closeable) {
            closeButton = new FocusWidget(new Label(" ").getElement()) {
            };

            closeButton.setStyleName("flapCloseButton");
            closeButton.addClickHandler(new ClickHandler() {
                public void onClick(ClickEvent event) {
                    event.stopPropagation();
                    tabs.closeView(tabId, false);
                }
            });

            closeButton.addKeyDownHandler(new KeyDownHandler() {
                public void onKeyDown(KeyDownEvent event) {
                    if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
                        event.stopPropagation();
                        tabs.closeView(tabId, false);
                    }
                }
            });

            closeButton.setVisible(closeable);

            Screen.ensureDebugId(closeButton, tabs.getElement().getId() + "_" + tabId + "_close_btn");

            flap.add(closeButton);
        }
    }

    /**
     * @param title
     */
    void setTabTitle(String title) {
        this.title.setText(title);
    }

    String getTabTitle() {
        return this.title.getText();
    }

    void setCloseButtonEnabled(boolean enabled) {
        if (enabled) {
            closeButton.removeStyleDependentName("disable");
        } else {
            closeButton.addStyleDependentName("disable");
        }
    }

    public boolean isCloseable() {
        return this.closeable;
    }
}