001package gwt.material.design.client.base.mixin;
002
003/*
004 * #%L
005 * GwtMaterial
006 * %%
007 * Copyright (C) 2015 GwtMaterialDesign
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 * 
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 * 
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import com.google.gwt.dom.client.Element;
024import com.google.gwt.user.client.ui.UIObject;
025import gwt.material.design.client.base.HasCounter;
026import gwt.material.design.client.ui.MaterialValueBox;
027
028public class CounterMixin<T extends UIObject & HasCounter> extends AbstractMixin<T> implements HasCounter {
029
030    private int length = 0;
031
032    public CounterMixin(final T widget) {
033        super(widget);
034    }
035
036    @Override
037    public void setLength(int length) {
038        this.length = length;
039        Element e = uiObject.getElement();
040
041        if(uiObject instanceof MaterialValueBox) {
042            e = ((MaterialValueBox)uiObject).asValueBoxBase().getElement();
043        }
044
045        if(e != null) {
046            e.setAttribute("length", String.valueOf(length));
047            initCounter(e);
048        }
049    }
050
051    @Override
052    public int getLength() {
053        return length;
054    }
055
056    /**
057     * Initialize the character counter provided by the textbase elements
058     * @param e - element to initialize the feature
059     */
060    protected native void initCounter(Element e) /*-{
061        $wnd.jQuery(e).characterCounter();
062    }-*/;
063}