package org.apache.myfaces.tobago.facelets;
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
import com.sun.facelets.tag.MetadataTarget;
import com.sun.facelets.tag.MetaRule;
import com.sun.facelets.tag.Metadata;
import com.sun.facelets.tag.TagAttribute;
import com.sun.facelets.FaceletContext;
import com.sun.facelets.el.LegacyValueBinding;
import org.apache.myfaces.tobago.component.UIPage;
import org.apache.myfaces.tobago.component.ComponentUtil;
import org.apache.myfaces.tobago.TobagoConstants;
import javax.faces.component.UIComponent;
/*
* User: bommel
* Date: Jan 2, 2007
* Time: 3:35:58 PM
*/
public class PageRule extends MetaRule {
public static final PageRule INSTANCE = new PageRule();
public Metadata applyRule(String name, TagAttribute attribute,
MetadataTarget metadataTarget) {
if (metadataTarget.isTargetInstanceOf(UIPage.class)) {
if (attribute.isLiteral()) {
if (TobagoConstants.ATTR_WIDTH.equals(name)) {
return new PageWidthMapper(attribute);
}
if (TobagoConstants.ATTR_HEIGHT.equals(name)) {
return new PageHeightMapper(attribute);
}
}
}
return null;
}
// TODO remove this
static final class PageDimensionExpression extends Metadata {
private final String name;
private final TagAttribute attr;
private final Class type;
PageDimensionExpression(String name, Class type, TagAttribute attr) {
this.name = name;
this.attr = attr;
this.type = type;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((UIComponent) instance).setValueBinding(name, new LegacyValueBinding(attr.getValueExpression(ctx, type)));
}
}
static final class PageWidthMapper extends Metadata {
private final TagAttribute attribute;
PageWidthMapper(TagAttribute attribute) {
this.attribute = attribute;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
UIPage page = (UIPage) instance;
page.setWidth(new Integer(ComponentUtil.removePx(attribute.getValue())));
}
}
static final class PageHeightMapper extends Metadata {
private final TagAttribute attribute;
PageHeightMapper(TagAttribute attribute) {
this.attribute = attribute;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
UIPage page = (UIPage) instance;
page.setHeight(new Integer(ComponentUtil.removePx(attribute.getValue())));
}
}
}