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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
Checkbox.java | 0% | 0% | 0% | 0% |
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// Copyright 2004, 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.form;
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import org.apache.tapestry.IForm;
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import org.apache.tapestry.IMarkupWriter;
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import org.apache.tapestry.IRequestCycle;
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/**
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* Implements a component that manages an HTML <input type=checkbox>
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* form element.
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*
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* [<a href="../../../../../ComponentReference/Checkbox.html">Component Reference</a>]
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*
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* @author Howard Lewis Ship
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*
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**/
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public abstract class Checkbox extends AbstractFormComponent |
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{ |
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/**
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* Renders the form elements, or responds when the form containing the element
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* is submitted (by checking {@link Form#isRewinding()}.
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*
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* <p>In traditional HTML, many checkboxes would have the same name but different values.
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* Under Tapestry, it makes more sense to have different names and a fixed value.
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* For a checkbox, we only care about whether the name appears as a request parameter.
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*
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**/
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protected void renderComponent(IMarkupWriter writer, IRequestCycle cycle) |
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{ |
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IForm form = getForm(cycle); |
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// Used whether rewinding or not.
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String name = form.getElementId(this);
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if (form.isRewinding())
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{ |
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String value = cycle.getRequestContext().getParameter(name); |
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setSelected((value != null));
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return;
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} |
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writer.beginEmpty("input");
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writer.attribute("type", "checkbox"); |
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writer.attribute("name", name);
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if (isDisabled())
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writer.attribute("disabled", "disabled"); |
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if (isSelected())
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writer.attribute("checked", "checked"); |
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renderInformalParameters(writer, cycle); |
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writer.closeTag(); |
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} |
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public abstract boolean isDisabled(); |
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/** @since 2.2 **/
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public abstract boolean isSelected(); |
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/** @since 2.2 **/
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public abstract void setSelected(boolean selected); |
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} |
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