| Clover coverage report - Code Coverage for tapestry release 4.0.3 |
|
 |
|
|||||||||||||||||||
| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| Radio.java | 100% | 100% | 100% | 100% |
|
||||||||||||||
| 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.form; | |
| 16 | ||
| 17 | import org.apache.hivemind.ApplicationRuntimeException; | |
| 18 | import org.apache.tapestry.AbstractComponent; | |
| 19 | import org.apache.tapestry.IMarkupWriter; | |
| 20 | import org.apache.tapestry.IRequestCycle; | |
| 21 | import org.apache.tapestry.Tapestry; | |
| 22 | ||
| 23 | /** | |
| 24 | * Implements a component that manages an HTML <input type=radio> form element. | |
| 25 | * Such a component must be wrapped (possibly indirectly) | |
| 26 | * inside a {@link RadioGroup} component. | |
| 27 | * | |
| 28 | * [<a href="../../../../../ComponentReference/Radio.html">Component Reference</a>] | |
| 29 | * | |
| 30 | * | |
| 31 | * <p>{@link Radio} and {@link RadioGroup} are generally not used (except | |
| 32 | * for very special cases). Instead, a {@link PropertySelection} component is used. | |
| 33 | * | |
| 34 | * | |
| 35 | * @author Howard Lewis Ship | |
| 36 | * | |
| 37 | **/ | |
| 38 | ||
| 39 | public abstract class Radio extends AbstractComponent | |
| 40 | { | |
| 41 | /** | |
| 42 | * Renders the form element, or responds when the form containing the element | |
| 43 | * is submitted (by checking {@link Form#isRewinding()}. | |
| 44 | * | |
| 45 | * | |
| 46 | **/ | |
| 47 | ||
| 48 | 222 | protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) |
| 49 | { | |
| 50 | ||
| 51 | 222 | RadioGroup group = RadioGroup.get(cycle); |
| 52 | 222 | if (group == null) |
| 53 | 3 | throw new ApplicationRuntimeException( |
| 54 | Tapestry.getMessage("Radio.must-be-contained-by-group"), | |
| 55 | this, | |
| 56 | null, | |
| 57 | null); | |
| 58 | ||
| 59 | // The group determines rewinding from the form. | |
| 60 | ||
| 61 | 219 | boolean rewinding = group.isRewinding(); |
| 62 | ||
| 63 | 219 | int option = group.getNextOptionId(); |
| 64 | ||
| 65 | 219 | if (rewinding) |
| 66 | { | |
| 67 | // If not disabled and this is the selected button within the radio group, | |
| 68 | // then update set the selection from the group to the value for this | |
| 69 | // radio button. This will update the selected parameter of the RadioGroup. | |
| 70 | ||
| 71 | 69 | if (!isDisabled() && !group.isDisabled() && group.isSelected(option)) |
| 72 | 9 | group.updateSelection(getValue()); |
| 73 | 69 | return; |
| 74 | } | |
| 75 | ||
| 76 | 150 | writer.beginEmpty("input"); |
| 77 | ||
| 78 | 150 | writer.attribute("type", "radio"); |
| 79 | ||
| 80 | 150 | writer.attribute("name", group.getName()); |
| 81 | ||
| 82 | // As the group if the value for this Radio matches the selection | |
| 83 | // for the group as a whole; if so this is the default radio and is checked. | |
| 84 | ||
| 85 | 150 | if (group.isSelection(getValue())) |
| 86 | 33 | writer.attribute("checked", "checked"); |
| 87 | ||
| 88 | 150 | if (isDisabled() || group.isDisabled()) |
| 89 | 51 | writer.attribute("disabled", "disabled"); |
| 90 | ||
| 91 | // The value for the Radio matches the option number (provided by the RadioGroup). | |
| 92 | // When the form is submitted, the RadioGroup will know which option was, | |
| 93 | // in fact, selected by the user. | |
| 94 | ||
| 95 | 150 | writer.attribute("value", option); |
| 96 | ||
| 97 | 150 | renderInformalParameters(writer, cycle); |
| 98 | ||
| 99 | } | |
| 100 | ||
| 101 | public abstract boolean isDisabled(); | |
| 102 | ||
| 103 | public abstract Object getValue(); | |
| 104 | } |
|
||||||||||
