com.google.gwt.uibinder.elementparsers.CustomButtonParser Maven / Gradle / Ivy
/*
* Copyright 2007 Google Inc.
*
* 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.uibinder.elementparsers;
import com.google.gwt.core.ext.UnableToCompleteException;
import com.google.gwt.core.ext.typeinfo.JClassType;
import com.google.gwt.uibinder.rebind.UiBinderWriter;
import com.google.gwt.uibinder.rebind.XMLElement;
import com.google.gwt.uibinder.rebind.XMLElement.Interpreter;
import com.google.gwt.user.client.ui.Image;
import java.util.HashSet;
import java.util.Set;
/**
* Parses CustomButton widgets.
*/
public class CustomButtonParser implements ElementParser {
private static final Set faceNames = new HashSet();
private static final String IMAGE_CLASS = Image.class.getCanonicalName();
static {
faceNames.add("upFace");
faceNames.add("downFace");
faceNames.add("upHoveringFace");
faceNames.add("downHoveringFace");
faceNames.add("upDisabledFace");
faceNames.add("downDisabledFace");
}
public void parse(final XMLElement elem, final String fieldName,
JClassType type, final UiBinderWriter writer)
throws UnableToCompleteException {
/*
* Parse children. Use an interpreter to leave text in place for
* HasHTMLParser to find.
*/
elem.consumeChildElements(new Interpreter() {
public Boolean interpretElement(XMLElement child)
throws UnableToCompleteException {
// CustomButton can only contain Face elements.
String ns = child.getNamespaceUri();
String faceName = child.getLocalName();
if (!ns.equals(elem.getNamespaceUri())) {
writer.die(elem, "Invalid child namespace: %s", ns);
}
if (!faceNames.contains(faceName)) {
writer.die(elem, "Invalid CustomButton face: %s:%s", ns, faceName);
}
HtmlInterpreter interpreter = HtmlInterpreter.newInterpreterForUiObject(
writer, fieldName);
String innerHtml = child.consumeInnerHtml(interpreter);
if (innerHtml.length() > 0) {
writer.addStatement("%s.%s().setHTML(%s);", fieldName,
faceNameGetter(faceName), writer.declareTemplateCall(innerHtml));
}
if (child.hasAttribute("image")) {
String image = child.consumeImageResourceAttribute("image");
writer.addStatement("%s.%s().setImage(new %s(%s));", fieldName,
faceNameGetter(faceName), IMAGE_CLASS, image);
}
return true; // We consumed it
}
});
}
private String faceNameGetter(String faceName) {
return "get" + faceName.substring(0, 1).toUpperCase()
+ faceName.substring(1);
}
}