nodered_cfg/node_modules/node-red-dashboard/nodes/ui_dropdown.html

<script type="text/javascript">
    RED.nodes.registerType('ui_dropdown',{
        category: RED._("node-red-dashboard/ui_base:ui_base.label.category"),
        color: 'rgb(176, 223, 227)',
        defaults: {
            name: {value: ''},
            label: {value: ''},
            tooltip: {value: ''},
            place: {value: 'Select option'},
            group: {type: 'ui_group', required:true},
            order: {value: 0},
            width: {value: 0, validate: function(v) {
                    var width = v||0;
                    var currentGroup = $('#node-input-group').val()||this.group;
                    var groupNode = RED.nodes.node(currentGroup);
                    var valid = !groupNode || +width <= +groupNode.width;
                    $("#node-input-size").toggleClass("input-error",!valid);
                    return valid;
                }
            },
            height: {value: 0},
            passthru: {value: true},
            multiple: {value: false},
            options: {value:[{value: '', label : ''}],
                validate:function(v) {
                    var unique = new Set(v.map(function(o) {return o.value;}));
                    return v.length == unique.size;
                }},
            payload: {value: ''},
            topic: {value: 'topic', validate: (RED.validators.hasOwnProperty('typedInput')?RED.validators.typedInput('topicType'):function(v) { return true})},
            topicType: {value: 'msg'},
            className: {value: ''}
        },
        inputs:1,
        outputs:1,
        icon: "ui_dropdown.png",
        paletteLabel: 'dropdown',
        label: function() { return this.name || (~this.label.indexOf("{{") ? null : this.label) || 'dropdown'; },
        labelStyle: function() { return this.name?"node_label_italic":""; },
        oneditprepare: function() {
            if (this.multiple === undefined) {
                $("#node-input-multiple").prop('checked', false);;
            }
            $("#node-input-size").elementSizer({
                width: "#node-input-width",
                height: "#node-input-height",
                group: "#node-input-group"
            });
            var un = new Set(this.options.map(function(o) {return o.value}));
            if (this.options.length == un.size) { $("#valWarning").hide(); }
            else { $("#valWarning").show(); }

            function generateOption(i, option) {
                var container = $('<li/>',{style:"background: #fff; margin:0; padding:8px 0px 0px; border-bottom: 1px solid #ccc;"});
                var row = $('<div/>').appendTo(container);
                var row2 = $('<div/>',{style:"padding-top:5px; padding-left:175px;"}).appendTo(container);
                var row3 = $('<div/>',{style:"padding-top:5px; padding-left:120px;"}).appendTo(container);

                $('<i style="color:#eee; cursor:move; margin-left:3px;" class="node-input-option-handle fa fa-bars"></i>').appendTo(row);

                var valueField = $('<input/>',{class:"node-input-option-value",type:"text",style:"margin-left:7px; width:calc(50% - 32px);", placeholder: 'Value',value:option.value}).appendTo(row).typedInput({default:option.type||'str',types:['str','num','bool']});
                var labelField = $('<input/>',{class:"node-input-option-label",type:"text",style:"margin-left:7px; width:calc(50% - 32px);", placeholder: 'Label', value:option.label}).appendTo(row);

                var finalspan = $('<span/>',{style:"float:right; margin-right:8px;"}).appendTo(row);
                var deleteButton = $('<a/>',{href:"#",class:"editor-button editor-button-small", style:"margin-top:7px; margin-left:5px;"}).appendTo(finalspan);
                $('<i/>',{class:"fa fa-remove"}).appendTo(deleteButton);

                deleteButton.click(function() {
                    container.css({"background":"#fee"});
                    container.fadeOut(300, function() {
                        $(this).remove();
                    });
                });

                $("#node-input-option-container").append(container);
            }

            $("#node-input-add-option").click(function() {
                generateOption($("#node-input-option-container").children().length+1, {});
                $("#node-input-option-container-div").scrollTop($("#node-input-option-container-div").get(0).scrollHeight);
            });

            for (var i=0; i<this.options.length; i++) {
                var option = this.options[i];
                generateOption(i+1,option);
            }

            $( "#node-input-option-container" ).sortable({
                axis: "y",
                handle:".node-input-option-handle",
                cursor: "move"
            });

            $('#node-input-topic').typedInput({
                default: 'str',
                typeField: $("#node-input-topicType"),
                types: ['str','msg','flow','global']
            });
        },
        oneditsave: function() {
            var options = $("#node-input-option-container").children();
            var node = this;
            node.options = [];
            options.each(function(i) {
                var option = $(this);
                var o = {
                    label: option.find(".node-input-option-label").val(),
                    value: option.find(".node-input-option-value").typedInput('value'),
                    type: option.find(".node-input-option-value").typedInput('type')
                };
                if (option.find(".node-input-option-value").typedInput('type') === "num") {
                    o.value = Number(o.value);
                }
                if (option.find(".node-input-option-value").typedInput('type') === "bool") {
                    o.value = (o.value == "true");
                }
                node.options.push(o);
            });
        },
        oneditresize: function() {
        }
    });
</script>

<script type="text/html" data-template-name="ui_dropdown">
    <div class="form-row">
        <label for="node-input-group"><i class="fa fa-table"></i> Group</label>
        <input type="text" id="node-input-group">
    </div>
    <div class="form-row">
        <label><i class="fa fa-object-group"></i> Size</label>
        <input type="hidden" id="node-input-width">
        <input type="hidden" id="node-input-height">
        <button class="editor-button" id="node-input-size"></button>
    </div>
    <div class="form-row">
        <label for="node-input-label"><i class="fa fa-tag"></i> Label</label>
        <input type="text" id="node-input-label" placeholder="optional label">
    </div>
    <div class="form-row">
        <label for="node-input-tooltip"><i class="fa fa-info-circle"></i> Tooltip</label>
        <input type="text" id="node-input-tooltip" placeholder="optional tooltip">
    </div>
    <div class="form-row">
        <label for="node-input-place"><i class="fa fa-tag"></i> Placeholder</label>
        <input type="text" id="node-input-place" placeholder="optional placeholder">
    </div>
    <div class="form-row node-input-option-container-row" style="margin-bottom: 0px;width: 100%">
        <label for="node-input-width" style="vertical-align:top"><i class="fa fa-list-alt"></i> Options</label>
        <div id="node-input-option-container-div" style="box-sizing:border-box; border-radius:5px; height:257px; padding:5px; border:1px solid #ccc; overflow-y:scroll; display:inline-block; width:calc(70% + 15px);">
            <span id="valWarning" style="color:#910000"><b>All Values must be unique.</b></span>
            <ol id="node-input-option-container" style="list-style-type:none; margin:0;"></ol>
        </div>
    </div>
    <div class="form-row">
        <a href="#" class="editor-button editor-button-small" id="node-input-add-option" style="margin-top:4px; margin-left:103px;"><i class="fa fa-plus"></i> <span>option</span></a>
    </div>
    <div class="form-row">
        <label style="width:auto" for="node-input-multiple"><i class="fa fa-th-list"></i> Allow multiple selections from list: </label>
        <input type="checkbox" checked id="node-input-multiple" style="display:inline-block; width:auto; vertical-align:top;">
    </div>
    <div class="form-row">
        <label style="width:auto" for="node-input-passthru"><i class="fa fa-arrow-right"></i> If <code>msg</code> arrives on input, pass through to output: </label>
        <input type="checkbox" checked id="node-input-passthru" style="display:inline-block; width:auto; vertical-align:top;">
    </div>
    <div class="form-row">
        <label for="node-input-topic"><i class="fa fa-tasks"></i> Topic</label>
        <input type="text" id="node-input-topic" placeholder="optional msg.topic">
        <input type="hidden" id="node-input-topicType">
    </div>
    <div class="form-row">
        <label for="node-input-className"><i class="fa fa-code"></i>  Class</label>
        <input type="text" id="node-input-className" placeholder="Optional CSS class name(s) for widget"/>
    </div>
    <div class="form-row">
        <label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
        <input type="text" id="node-input-name">
    </div>
</script>