Add button group ui node

button-group.html

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+<script type="text/javascript">
+    RED.nodes.registerType('ui_button_group', {
+        category: 'dashboard',
+        color: 'rgb(63, 173, 181)',
+        defaults: {
+            name: { value: '' },
+            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 },
+            buttonwidth: {
+                value: 0, validate: function (v) {
+                    var btnWidth = Number(v || 0);
+                    var valid = btnWidth <= Number(this.width) && btnWidth > 0;
+                    console.log(`valid: ${valid}; btnWidth: ${btnWidth}; this.width: ${this.width}; v: ${v}`);
+                    $("#node-input-buttonwidth").toggleClass("input-error", !valid);
+                    return valid;
+                }
+            },
+            buttonheight: {
+                value: 0, validate: function (v) {
+                    var btnHeight = Number(v || 0);
+                    var valid = btnHeight <= Number(this.height) && btnHeight > 0;
+                    $("#node-input-buttonheight").toggleClass("input-error", !valid);
+                    return valid;
+                },
+            },
+        },
+        inputs: 1,
+        outputs: 1,
+        icon: 'font-awesome/fa-th-large',
+        paletteLabel: 'button group',
+        label: function () {
+            return this.name || 'Buttons';
+        },
+        oneditprepare: function () {
+            $("#node-input-size").elementSizer({
+                width: "#node-input-width",
+                height: "#node-input-height",
+                group: "#node-input-group"
+            });
+        }
+    });
+</script>
+
+<script type="text/html" data-template-name="ui_button_group">
+    <div class='form-row' id='template-row-group'>
+        <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-buttonwidth"><i class="fa fa-tag"></i> Button Width</label>
+        <input type="number" id="node-input-buttonwidth" placeholder="1">
+    </div>
+    <div class="form-row">
+        <label for="node-input-buttonheight"><i class="fa fa-tag"></i> Button Height</label>
+        <input type="number" id="node-input-buttonheight" placeholder="1">
+    </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" placeholder="Name">
+    </div>
+</script>
+
+<script type="text/html" data-help-name="ui_button_group">
+    <p>A simple button group node</p>
+</script>

button-group.js

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+module.exports = function (RED) {
+    function ButtonGroupNode(config) {
+        var ui = undefined;
+        try {
+            var node = this;
+            if (ui === undefined) {
+                ui = RED.require("node-red-dashboard")(RED);
+            }
+            RED.nodes.createNode(this, config);
+
+            var sizes = ui.getSizes();
+
+            var widthPx = config.buttonwidth * sizes.sx - sizes.gx;
+
+            var heightPx = config.buttonheight * sizes.sy - sizes.gy;
+
+            var html = `<div style="width=100%; height=100%">
+                    <md-button id="{{$index}}" style="width:${widthPx}px; height:${heightPx}px; margin: ${sizes.gx}px ${sizes.gy}px;" ng-click="buttonClick($event)" ng-repeat="button in msg.buttons">{{button.label}}</md-button>
+                </div>`;
+
+            var done = ui.addWidget({
+                node: node,
+                order: config.order,
+                group: config.group,
+                width: config.width,
+                height: config.height,
+                format: html,
+                templateScope: 'local',
+                emitOnlyNewValues: false,
+                forwardInputMessages: false,
+                storeFrontEndInputAsState: false,
+                convertBack: function (value) {
+                    return value;
+                },
+                beforeEmit: function (msg, value) {
+                    return { msg: { buttons: value, socketid: msg.socketid } };
+                },
+                beforeSend: function (msg, orig) {
+                    if (orig) {
+                        orig.msg.topic = config.topic;
+                        return orig.msg;
+                    }
+                },
+                initController: function ($scope, events) {
+                    $scope.buttonClick = function (e) {
+                        e.preventDefault();
+                        var buttonId = e.target.id;
+                        $scope.send({ "payload": $scope.msg.buttons[buttonId].payload });
+                    };
+                }
+            });
+        } catch (e) {
+            console.log(e)
+        }
+        node.on('close', done);
+    }
+    RED.nodes.registerType("ui_button_group", ButtonGroupNode);
+}

package.json

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+{
+  "name": "node-red-contrib-ui-cocktail",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "Jendrik Jäger",
+  "license": "ISC",
+  "node-red": {
+    "nodes": {
+      "ui_button_group": "button-group.js"
+    }
+  }
+}