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 gwt.material.design.client.base.HasColors;
024import gwt.material.design.client.constants.Color;
025
026/**
027 * @author kevzlou7979
028 * @author Ben Dol
029 */
030public class ColorsMixin<T extends UIObject & HasColors> extends AbstractMixin<T> implements HasColors {
031
032    private Color bgColor;
033    private Color textColor;
034
035    public ColorsMixin(final T widget) {
036        super(widget);
037    }
038
039    @Override
040    public void setBackgroundColor(Color bgColor) {
041        if (this.bgColor != null) {
042            uiObject.removeStyleName(this.bgColor.getCssName());
043        }
044        this.bgColor = bgColor;
045
046        if (bgColor != null) {
047            uiObject.addStyleName(bgColor.getCssName());
048        }
049    }
050
051    @Override
052    public Color getBackgroundColor() {
053        return bgColor;
054    }
055
056    @Override
057    public void setTextColor(Color textColor) {
058        if (this.textColor != null) {
059            uiObject.removeStyleName(ensureTextColorFormat(this.textColor.getCssName()));
060        }
061        this.textColor = textColor;
062
063        if (this.textColor != null) {
064            uiObject.addStyleName(ensureTextColorFormat(textColor.getCssName()));
065        }
066    }
067
068    @Override
069    public Color getTextColor() {
070        return textColor;
071    }
072
073    /**
074     * Allow for the use of text shading and auto formatting.
075     */
076    protected String ensureTextColorFormat(String textColor) {
077        String formatted = "";
078        boolean mainColor = true;
079        for (String style : textColor.split(" ")) {
080            if (mainColor) {
081                // the main color
082                if (!style.endsWith("-text")) {
083                    style += "-text";
084                }
085                mainColor = false;
086            } else {
087                // the shading type
088                if (!style.startsWith("text-")) {
089                    style = " text-" + style;
090                }
091            }
092            formatted += style;
093        }
094        return formatted;
095    }
096}