| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <head> |
| <META http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
| <title>Cocoon Forms: row-action widget</title> |
| <link href="http://purl.org/DC/elements/1.0/" rel="schema.DC"> |
| <meta content="The Apache Cocoon Team" name="DC.Creator"> |
| </head> |
| <body> |
| |
| <h1>Concept</h1> |
| |
| <p>This is a specific type of <a href="widget_action.html">action widget</a> |
| that handles frequent actions |
| occuring on a repeater row, such as adding/removing a row and moving |
| it up and down. These widgets should be placed inside a repeater and |
| act on the current row.</p> |
| |
| |
| |
| <h1>Configuration</h1> |
| |
| <pre class="code"><fd:row-action id="..." action-command="add-after|delete|move-up|move-down"> |
| <fd:label>...</fd:label> |
| <fd:help>...</fd:help> |
| <fd:hint>...</fd:hint> |
| <fd:on-action> |
| ... |
| </fd:on-action> |
| </fd:row-action></pre> |
| |
| |
| <p>The <strong>action-command</strong> attribute should have either the |
| value <span class="codefrag">add-after</span>, <span class="codefrag">delete</span>, <span class="codefrag">move-up</span> |
| or <span class="codefrag">move-down</span>.</p> |
| |
| |
| <p> |
| <strong>fd:on-action</strong> allows additional event handlers to |
| be defined, see also <a href="eventhandling.html">Event Handling</a>. The interface to be implemented |
| for Java event listeners is <span class="codefrag">org.apache.cocoon.forms.event.ActionListener</span>. |
| The WidgetEvent subclass is <span class="codefrag">org.apache.cocoon.forms.event.ActionEvent</span>. |
| The event handlers are called <em>after</em> the action is performed except for the |
| <span class="codefrag">delete</span> row action where event handlers are called <em>before</em> the |
| row is deleted.</p> |
| |
| |
| <p>Where all you want to do is submit a specific row on a repeater, |
| simply add a fd:submit element to the widgets for the repeater.</p> |
| |
| |
| <p>Then, you can access the submitted row either using an event handler |
| with event.getSourceWidget().getParent(), or from the flow using |
| form.getWidget().getSubmitWidget().getParent(). The row itself has a |
| lookupWidget(widgetName) method that can be used to access specific |
| widgets for the row.</p> |
| |
| |
| </body> |
| </html> |
