01 /*
02 * Copyright 2008-2016 the original author or authors.
03 *
04 * Licensed under the Apache License, Version 2.0 (the "License");
05 * you may not use this file except in compliance with the License.
06 * You may obtain a copy of the License at
07 *
08 * http://www.apache.org/licenses/LICENSE-2.0
09 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package griffon.builder.pivot.factory
17
18 /**
19 * @author Andres Almiray
20 */
21 class EventListenerFactory extends AbstractFactory {
22 private static final Class[] PARAMS = [FactoryBuilderSupport] as Class[]
23 final Class adapterClass
24 final List<Class> parents = []
25 final String getListenersMethod
26
27 EventListenerFactory(Class adapterClass, List<Class> parents, String listenersMethod) {
28 this.adapterClass = adapterClass
29 this.parents.addAll(parents)
30 this.getListenersMethod = listenersMethod
31 }
32
33 Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes)
34 throws InstantiationException, IllegalAccessException {
35 if (value && adapterClass.isAssignableFrom(value.getClass())) return value
36 adapterClass.getDeclaredConstructor(PARAMS).newInstance([builder] as Object[])
37 }
38
39 boolean isHandlesNodeChildren() {
40 return true
41 }
42
43 boolean onNodeChildren(FactoryBuilderSupport builder, Object node, Closure childContent) {
44 node.delegate = childContent.delegate
45 childContent.delegate = node
46 childContent()
47 return false
48 }
49
50 void setParent(FactoryBuilderSupport builder, Object parent, Object node) {
51 if (!parent) return
52 for (candidate in parents) {
53 if (candidate.isAssignableFrom(parent.getClass())) {
54 parent."$getListenersMethod"().add(node)
55 break
56 }
57 }
58 }
59 }
|