Diagram - Editable Connections can be created and edited on the fly using drag and drop. In this example, computers are sources whereas servers are the targets. Once a connection is created, removed or changed using drag and drop, diagram makes an ajax request to save changes in the backend model. Additionally, optional ajax events are provided as callbacks.
Computer A
Computer B
Computer C
Server A
Server B
<h:form id="form">
    <p:growl id="msgs" showDetail="true" />

    <p:diagram value="#{diagramEditableView.model}" style="height:600px" styleClass="ui-widget-content" var="el">
        <f:facet name="element">
            <h:outputText value="#{el.name}" style="display:block;margin-top:1em;"/>
            <p:graphicImage name="demo/images/#{el.image}" />
        </f:facet>
        <p:ajax event="connect" listener="#{diagramEditableView.onConnect}" />
        <p:ajax event="disconnect" listener="#{diagramEditableView.onDisconnect}" />
        <p:ajax event="connectionChange" listener="#{diagramEditableView.onConnectionChange}" />
    </p:diagram>
</h:form>


/* Demo CSS */
<style type="text/css">
    .ui-diagram-element {
        border:0.1em dotted #E5E4E2; 
        background-color: #EFEEEC;
        width:10em; 
        height:8em;
        text-align: center;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.8);
    }

    .ui-diagram-element:hover {
        background-color: #C7C6C4;
    }
</style>
                
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