com.google.gwt.query.client.css.CssProperty Maven / Gradle / Ivy
/*
* Copyright 2011, The gwtquery team.
*
* 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 com.google.gwt.query.client.css;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Style;
import com.google.gwt.dom.client.Style.HasCssName;
/**
* Base class for Css property
*
* @param Class of the value associated with the css property
*/
public class CssProperty implements
TakesCssValue {
protected class CssSetterImpl implements CssSetter {
private T cssValue;
public CssSetterImpl(T cssValue) {
this.cssValue = cssValue;
}
public void applyCss(Element e) {
assert e != null : "Impossible to apply css to a null object";
set(e.getStyle(), cssValue);
}
}
private String cssName;
protected CssProperty(String cssName) {
this.cssName = cssName;
}
public String getCssName() {
return cssName;
}
public String getCssValue(Style s) {
return s.getProperty(getCssName());
}
public CssSetter with(T value) {
return new CssSetterImpl(value);
}
protected void set(Style s, T value) {
s.setProperty(getCssName(), value != null ? value.getCssName() : "");
}
}