001/*
002 * #%L
003 * GwtMaterial
004 * %%
005 * Copyright (C) 2015 - 2017 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.base.mixin;
021
022import com.google.gwt.user.client.ui.UIObject;
023import com.google.gwt.user.client.ui.Widget;
024import gwt.material.design.client.base.HasActive;
025import gwt.material.design.client.base.MaterialWidget;
026import gwt.material.design.client.constants.CssName;
027
028public class ActiveMixin<T extends UIObject & HasActive> extends AbstractMixin<T> implements HasActive {
029
030    private boolean active;
031    private MaterialWidget target;
032
033    public ActiveMixin(final T widget) {
034        super(widget);
035    }
036
037    public ActiveMixin(final T widget, final MaterialWidget target) {
038        super(widget);
039        this.target = target;
040    }
041
042    @Override
043    public void setActive(boolean active) {
044        this.active = active;
045        if (target != null) {
046            applyActiveStyle(target, active);
047        } else {
048            applyActiveStyle((Widget) uiObject, active);
049        }
050    }
051
052    protected void applyActiveStyle(Widget widget, boolean active) {
053        if (active) {
054            widget.removeStyleName(CssName.INACTIVE);
055            widget.addStyleName(CssName.ACTIVE);
056        } else {
057            widget.removeStyleName(CssName.ACTIVE);
058            widget.addStyleName(CssName.INACTIVE);
059        }
060    }
061
062    @Override
063    public boolean isActive() {
064        return active;
065    }
066}