EditableBulletList

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    /***
    
        EditableBulletList
    
        (optional) values : list
    
        (optional) noValuesLabel : str
    
        (optional) editLabel : str
    
        (optional) addLabel : str
    
        (optional) saveLabel : str
    
        (optional) cancelLabel : str
    
        (optional) publish : str
    
        (optional) class : str
    
        (optional) readOnly : bool
    
        (optional) readOnlyAlert : str
    
        (optional) message : map
    
    ***/
    
    // TODO (steveb):
    // 1) reset the contents of the textboxes when the edit operation is canceled
    // 2) update the bullet list after save is confirmed
    
    
    // read parameters
    var values = $values ?? [ ];
    var novalueslabel = $novalueslabel ?? 'There are no values.';
    var editlabel = $editlabel ?? 'edit';
    var addlabel = $addlabel ?? 'add';
    var savelabel = $savelabel ?? 'save';
    var cancellabel = $cancellabel ?? 'cancel';
    var channel = $publish ?? 'default';
    var class = $class;
    var readonly = $readonly ?? user.anonymous;
    var readonlyalert = $readonlyalert ?? 'You must login to edit these values.';
    var message = $message ?? { };
    
    // render controls
    <div id=(@div) class=(class)>
    
        // check if the edit button should be enabled
        if(readonly) {
            <input type="button" value=(editlabel) id=(@edit) ctor="
                when($this.click) alert({{ readonlyalert }});
            "/>
        } else {
            <input type="button" value=(editlabel) id=(@edit) ctor="
                when($this.click) @toggle();
            "/>
        }
        
        // render current values as a bulleted list
        <div id=(@displayspan)>
            if(#values == 0) {
                <div id=(@resizeonedit)>
                    novalueslabel
                </div>
            } else {
                <ul>
                    foreach(var value in values) {
                        <li> value </li>
                    }
                </ul>
            }
        </div>
        
        // render the edit form
        <form id=(@changeform)>
            if(#values != 0) {
                foreach(var value in values) {
                    <textarea>
                        value
                    </textarea>
                }
            } else {
                <textarea />
            }
    
            // separate the input boxes from the controls
            <div class="cleardiv"> &nbsp; </div>
    
            // render the add button
            <input type="button" id=(@add) value=(addlabel) ctor="
                when($this.click) $('#' + {{ @changeform }} + ' textarea:last').after('<textarea></textarea>');
            "/>
            
            // render the save button
            &nbsp;;
            <input type="button" id=(@save) value=(savelabel) ctor="
                when($this.click) {
                    var newvalues = [ ];
                    $('#' + {{ @changeform }} + ' textarea').each(function() {
                        var val = $(this).val();
                        if(val != '') newvalues.push(val);
                    });
                    var msg = {{ message }};
                    msg.values = newvalues;
                    msg.completed = function() { @toggle(); };
                    Deki.publish({{ channel }}, msg);
                }
            "/>
    
            // render the cancel button
            &nbsp;;
            <input type="button" id=(@cancel) value=(cancellabel) ctor="
                when($this.click) @toggle();
            "/>
        </form>
    </div>
    
    // script
    <script type="text/jem">"
    when(@toggle) {
        $('#' + {{ @changeform }} + ',#' + {{ @displayspan }} + ',#' + {{ @edit }}).slideToggle();
        var resizeonedit = $('#' + {{ @resizeonedit }});
        if(resizeonedit.css('padding-top') == '0px') {
            resizeonedit.css('padding-top', '1.6em');
        } else {
            resizeonedit.css('padding-top', '0px');
        }
    }
    "</script>
    
    // styles
    <style type="text/css">"
    #" .. @resizeonedit .. " {
        padding-top: 1.6em;
    }
    #" .. @changeform .. " {
        display: none;
    }
    #" .. @changeform .. " textarea {
        width: 50%;
        float: left;
        margin-bottom: 5px;
    }
    #" .. @div .. " .cleardiv {
        height:1px;
        clear:both;
    }
    "</style>
    
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