Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
PropertySelection |
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1 | // Copyright 2004, 2005 The Apache Software Foundation | |
2 | // | |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | // you may not use this file except in compliance with the License. | |
5 | // You may obtain a copy of the License at | |
6 | // | |
7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
8 | // | |
9 | // 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.wml; | |
16 | ||
17 | import org.apache.tapestry.AbstractComponent; | |
18 | import org.apache.tapestry.IMarkupWriter; | |
19 | import org.apache.tapestry.IRequestCycle; | |
20 | import org.apache.tapestry.form.IPropertySelectionModel; | |
21 | ||
22 | /** | |
23 | * A high level component used to render a drop-down list of options that the user may select. | |
24 | * | |
25 | * Informal parameters are applied to the <select> tag. To have greater control over the | |
26 | * <option> tags, you must use a Select and Option or a concrete class | |
27 | * of {@link org.apache.tapestry.link.ILinkRenderer} with the {@link OptionRenderer}. | |
28 | * | |
29 | * @author David Solis | |
30 | */ | |
31 | ||
32 | 0 | public abstract class PropertySelection extends AbstractComponent |
33 | { | |
34 | /** | |
35 | * @see AbstractComponent#renderComponent(IMarkupWriter, IRequestCycle) | |
36 | **/ | |
37 | ||
38 | protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) | |
39 | { | |
40 | 0 | boolean render = !cycle.isRewinding(); |
41 | ||
42 | 0 | if (render) |
43 | { | |
44 | 0 | IPropertySelectionModel model = getModel(); |
45 | ||
46 | 0 | writer.begin("select"); |
47 | ||
48 | 0 | writer.attribute("name", getName()); |
49 | ||
50 | 0 | renderInformalParameters(writer, cycle); |
51 | ||
52 | 0 | writer.println(); |
53 | ||
54 | 0 | int count = model.getOptionCount(); |
55 | ||
56 | 0 | for (int i = 0; i < count; i++) |
57 | { | |
58 | ||
59 | 0 | writer.begin("option"); |
60 | 0 | writer.attribute("value", model.getValue(i)); |
61 | ||
62 | 0 | writer.print(model.getLabel(i)); |
63 | ||
64 | 0 | writer.end(); |
65 | 0 | writer.println(); |
66 | } | |
67 | ||
68 | 0 | writer.end(); |
69 | } | |
70 | 0 | } |
71 | ||
72 | public abstract IPropertySelectionModel getModel(); | |
73 | ||
74 | public abstract String getName(); | |
75 | } |