01: // Copyright 2007 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.tapestry.internal.bindings;
16:
17: import org.apache.tapestry.Asset;
18: import org.apache.tapestry.Binding;
19: import org.apache.tapestry.ComponentResources;
20: import org.apache.tapestry.ioc.Location;
21: import org.apache.tapestry.ioc.Resource;
22: import org.apache.tapestry.services.AssetSource;
23: import org.apache.tapestry.services.BindingFactory;
24:
25: /**
26: * Binding factory where the expression is a reference to an asset.
27: *
28: * @see AssetSource
29: */
30: public class AssetBindingFactory implements BindingFactory {
31: private final AssetSource _source;
32:
33: public AssetBindingFactory(final AssetSource source) {
34: _source = source;
35: }
36:
37: public Binding newBinding(String description,
38: ComponentResources container, ComponentResources component,
39: String expression, Location location) {
40: Resource baseResource = container.getBaseResource();
41:
42: Asset asset = _source.findAsset(baseResource, expression,
43: container.getLocale());
44:
45: return new LiteralBinding(description, asset, location);
46:
47: }
48: }
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