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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.facelets;
21  
22  import org.apache.myfaces.tobago.component.InputSuggest2;
23  import org.apache.myfaces.tobago.internal.component.AbstractUISuggest;
24  import org.apache.myfaces.tobago.model.SuggestFilter;
25  
26  import javax.faces.view.facelets.FaceletContext;
27  import javax.faces.view.facelets.MetaRule;
28  import javax.faces.view.facelets.Metadata;
29  import javax.faces.view.facelets.MetadataTarget;
30  import javax.faces.view.facelets.TagAttribute;
31  
32  public class SuggestMethodRule extends MetaRule {
33  
34    public static final Class[] SUGGEST_METHOD = new Class[]{javax.faces.component.UIInput.class};
35  
36    public static final SuggestMethodRule INSTANCE = new SuggestMethodRule();
37  
38    @Override
39    public Metadata applyRule(final String name, final TagAttribute attribute, final MetadataTarget metadataTarget) {
40  
41      if (metadataTarget.isTargetInstanceOf(InputSuggest2.class)) {
42        if ("suggestMethod".equals(name)) {
43          return new SuggestMethodMapper(attribute);
44        }
45      }
46      if (metadataTarget.isTargetInstanceOf(AbstractUISuggest.class)) {
47        if (attribute.isLiteral()) {
48          if ("filter".equals(name)) {
49            return new SuggestFilterMapper(attribute);
50          }
51        }
52      }
53      return null;
54    }
55  
56    static final class SuggestMethodMapper extends Metadata {
57      private final TagAttribute attribute;
58  
59      public SuggestMethodMapper(final TagAttribute attribute) {
60        this.attribute = attribute;
61      }
62  
63      @Override
64      public void applyMetadata(final FaceletContext ctx, final Object instance) {
65        ((InputSuggest2) instance).setSuggestMethodExpression(
66            attribute.getMethodExpression(ctx, null, SuggestMethodRule.SUGGEST_METHOD));
67      }
68    }
69  
70    static final class SuggestFilterMapper extends Metadata {
71      private final TagAttribute attribute;
72  
73      SuggestFilterMapper(final TagAttribute attribute) {
74        this.attribute = attribute;
75      }
76  
77      @Override
78      public void applyMetadata(final FaceletContext ctx, final Object instance) {
79        ((AbstractUISuggest) instance).setFilter(SuggestFilter.parse(attribute.getValue()));
80      }
81    }
82  
83  }