001/*
002 * #%L
003 * GwtMaterial
004 * %%
005 * Copyright (C) 2015 GwtMaterialDesign
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 * 
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 * 
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package gwt.material.design.client.ui;
021
022import gwt.material.design.client.base.MaterialWidget;
023import gwt.material.design.client.constants.Display;
024import gwt.material.design.client.ui.html.Div;
025
026import com.google.gwt.dom.client.Document;
027import com.google.gwt.dom.client.Style;
028import com.google.gwt.user.client.ui.HasVisibility;
029import com.google.gwt.user.client.ui.Widget;
030
031//@formatter:off
032/**
033 * An initial screen that act as a loading screen
034 * in order for your apps to load fully.
035 *
036 * <h3>UiBinder Usage:</h3>
037 * <pre>
038 *{@code
039
040<m:MaterialSplashScreen backgroundColor="blue" textColor="white" textAlign="CENTER">
041    <m:MaterialImage resource="{res.ic_splash}" width="300px"/>
042    <m:MaterialTitle title="gwt-material" description="Material Design Look and Feel for GWT Apps" />
043</m:MaterialSplashScreen>
044
045 * }</pre>
046 * <h3>Java Usage:</h3>
047 * <pre>
048 *{@code
049 *
050@UiField MaterialSplashScreen splash;
051splash.show();
052Timer t = new Timer() {
053    @Override
054    public void run() {
055        splash.hide();
056    }
057};
058t.schedule(3000);
059
060 * }</pre>
061 * @author kevzlou7979
062 * @author Ben Dol
063 * @see <a href="http://gwt-material-demo.herokuapp.com/#media">Material Splashscreen</a>
064 */
065//@formatter:on
066public class MaterialSplashScreen extends MaterialWidget implements HasVisibility{
067
068    private Div div = new Div();
069    private MaterialProgress progress = new MaterialProgress();
070
071    public MaterialSplashScreen() {
072        super(Document.get().createDivElement(), "splash-screen");
073        setDisplay(Display.NONE);
074        div.setWidth("100%");
075        div.getElement().getStyle().setMarginTop(15, Style.Unit.PCT);
076        super.add(div);
077        super.add(progress);
078    }
079
080    @Override
081    public void add(Widget child) {
082        div.add(child);
083    }
084
085    public void show() {
086        getElement().getStyle().setDisplay(Display.BLOCK.getGwtDisplay());
087    }
088
089    public void hide() {
090        getElement().getStyle().setDisplay(Display.NONE.getGwtDisplay());
091    }
092
093}