Add support for user definable properties to inject node

packages/node_modules/@node-red/nodes/core/common/20-inject.html

@@ -15,15 +15,12 @@
 -->
 
 <script type="text/html" data-template-name="inject">
-    <div class="form-row">
+    <div class="form-row" style="margin-bottom:0;">
-        <label for="node-input-payload"><i class="fa fa-envelope"></i> <span data-i18n="common.label.payload"></span></label>
+        <label style="width: auto"><i class="fa fa-list"></i> <span data-i18n="inject.label.properties"></span></label>
-        <input type="text" id="node-input-payload" style="width:70%">
-        <input type="hidden" id="node-input-payloadType">
     </div>
-
+    
-    <div class="form-row">
+    <div class="form-row node-input-property-container-row">
-        <label for="node-input-topic"><i class="fa fa-tasks"></i> <span data-i18n="common.label.topic"></span></label>
+        <ol id="node-input-property-container"></ol>
-        <input type="text" id="node-input-topic">
     </div>
 
     <div class="form-row" id="node-once">
@@ -160,13 +157,16 @@
         color:"#a6bbcf",
         defaults: {
             name: {value:""},
-            topic: {value:""},
+            props:{value:[{p:"payload",v:"",vt:"date"},{p:"topic",v:"",vt:"str"}]},
-            payload: {value:"", validate: RED.validators.typedInput("payloadType")},
-            payloadType: {value:"date"},
             repeat: {value:"", validate:function(v) { return ((v === "") || (RED.validators.number(v) && (v >= 0) && (v <= 2147483))) }},
             crontab: {value:""},
             once: {value:false},
-            onceDelay: {value:0.1}
+            onceDelay: {value:0.1},
+            /* Legacy */
+            topic: {value:""},
+            payload: {value:"", validate: RED.validators.typedInput("payloadType")},
+            payloadType: {value:"date"},
+            /* */
         },
         icon: "inject.svg",
         inputs:0,
@@ -189,7 +189,29 @@
             }
             return lab;
         },
-        label: function() {
+        label: function() {        
+            if (Array.isArray(this.props)) {
+                // find the payload & topic
+                var payloadProperty = this.props.find(p => p.p === 'payload');
+                var topicProperty = this.props.find(p => p.p === 'topic' && p.vt === 'str');
+                
+                // If no payload/topic are found, use the first property instead
+                if(this.props[0]){
+                    payloadProperty = payloadProperty === undefined ? this.props[0] : payloadProperty;
+                    topicProperty = topicProperty === undefined ? {v: payloadProperty.p} : topicProperty; // if no topic, use the property name of the payload
+                }
+
+                var payload = payloadProperty === undefined ? "" : payloadProperty.v;
+                var payloadType = payloadProperty === undefined ? "str" : payloadProperty.vt;
+                var topic = topicProperty === undefined ? "" : topicProperty.v;                
+            } else {
+                /* Legacy */
+                var payload = this.payload;
+                var payloadType = this.payloadType;
+                var topic = this.topic;
+            }
+            
+            
             var suffix = "";
             // if fire once then add small indication
             if (this.once) {
@@ -201,27 +223,27 @@
             }
             if (this.name) {
                 return this.name+suffix;
-            } else if (this.payloadType === "string" ||
+            } else if (payloadType === "string" ||
-                    this.payloadType === "str" ||
+                    payloadType === "str" ||
-                    this.payloadType === "num" ||
+                    payloadType === "num" ||
-                    this.payloadType === "bool" ||
+                    payloadType === "bool" ||
-                    this.payloadType === "json") {
+                    payloadType === "json") {
-                if ((this.topic !== "") && ((this.topic.length + this.payload.length) <= 32)) {
+                if ((topic !== "") && ((topic.length + payload.length) <= 32)) {
-                    return this.topic + ":" + this.payload+suffix;
+                    return topic + ":" + payload+suffix;
-                } else if (this.payload.length > 0 && this.payload.length < 24) {
+                } else if (payload.length > 0 && payload.length < 24) {
-                    return this.payload+suffix;
+                    return payload+suffix;
                 } else {
                     return this._("inject.inject")+suffix;
                 }
-            } else if (this.payloadType === 'date') {
+            } else if (payloadType === 'date' || payloadType === 'bin' || payloadType === 'env') {
-                if ((this.topic !== "") && (this.topic.length <= 16)) {
+                if ((topic !== "") && (topic.length <= 16)) {
-                    return this.topic + ":" + this._("inject.timestamp")+suffix;
+                    return topic + ":" + this._(`inject.label.${payloadType}`)+suffix;
                 } else {
-                    return this._("inject.timestamp")+suffix;
+                    return this._(`inject.label.${payloadType}`)+suffix;
                 }
-            } else if (this.payloadType === 'flow' || this.payloadType === 'global') {
+            } else if (payloadType === 'flow' || payloadType === 'global') {
-                var key = RED.utils.parseContextKey(this.payload);
+                var key = RED.utils.parseContextKey(payload);
-                return this.payloadType+"."+key.key+suffix;
+                return payloadType+"."+key.key+suffix;
             } else {
                 return this._("inject.inject")+suffix;
             }
@@ -383,6 +405,71 @@
             $("#inject-time-type-select").trigger("change");
             $("#inject-time-interval-time-start").trigger("change");
 
+            /* */
+
+            function resizeItem(item) {
+                var newWidth = item.width();
+
+                item.find('.node-input-prop-property-name').typedInput("width", '155px');
+                item.find('.node-input-prop-property-value').typedInput("width", `${newWidth - 180}px`);
+            }
+
+            $('#node-input-property-container').css('min-height','150px').css('min-width','450px').editableList({
+                addItem: function(container,i,opt) {
+                    var prop = opt;
+                    if (!prop.hasOwnProperty('p')) {
+                        prop = {p:"",v:"",vt:"str"};
+                    }
+                    container.css({
+                        overflow: 'hidden',
+                        whiteSpace: 'nowrap'
+                    });
+                    var row = $('<div/>').appendTo(container);
+
+                    var propertyName = $('<input/>',{class:"node-input-prop-property-name",type:"text"})
+                        .appendTo(row)
+                        .typedInput({types:['msg']});
+
+                    $('<div/>',{style: 'display:inline-block; padding:0px 4px 0px 4px;'})
+                        .text('=')
+                        .appendTo(row);
+
+                    var propertyValue = $('<input/>',{class:"node-input-prop-property-value",type:"text"})
+                        .appendTo(row)
+                        .typedInput({default:'str',types:['msg','flow','global','str','num','bool','json','bin','date','jsonata','env']});
+
+                    propertyName.typedInput('value',prop.p);
+
+                    propertyValue.typedInput('value',prop.v);
+                    propertyValue.typedInput('type',prop.vt);
+
+                    resizeItem(container);
+                },
+                resizeItem: resizeItem,
+                removable: true,
+                sortable: true
+            });
+
+            if (!this.props) {
+                var payload = {
+                    p:'payload',
+                    v: this.payload ? this.payload : '',
+                    vt:this.payloadType ? this.payloadType : 'date'
+                };
+                var topic = {
+                    p:'topic',
+                    v: this.topic ? this.topic : '',
+                    vt:'string'
+                }
+
+                this.props = [payload,topic];
+            }
+
+            for (var i=0; i<this.props.length; i++) {
+                var prop = this.props[i];
+                $("#node-input-property-container").editableList('addItem',prop);
+            }
+
         },
         oneditsave: function() {
             var repeat = "";
@@ -474,6 +561,22 @@
 
             $("#node-input-repeat").val(repeat);
             $("#node-input-crontab").val(crontab);
+
+            /* Gather the injected properties of the msg object */
+            var props = $("#node-input-property-container").editableList('items');
+            var node = this;
+            node.props= [];
+            props.each(function(i) {
+                var prop = $(this);
+                var p = {
+                    p:prop.find(".node-input-prop-property-name").typedInput('value')
+                };
+
+                p.v = prop.find(".node-input-prop-property-value").typedInput('value');
+                p.vt = prop.find(".node-input-prop-property-value").typedInput('type');
+
+                node.props.push(p);
+            });
         },
         button: {
             enabled: function() {
@@ -483,12 +586,7 @@
                 if (this.changed) {
                     return RED.notify(RED._("notification.warning", {message:RED._("notification.warnings.undeployedChanges")}),"warning");
                 }
-                var payload = this.payload;
+
-                if ((this.payloadType === 'flow') ||
-                    (this.payloadType === 'global')) {
-                    var key = RED.utils.parseContextKey(payload);
-                    payload = this.payloadType+"."+key.key;
-                }
                 var label = this._def.label.call(this);
                 if (label.length > 30) {
                     label = label.substring(0,50)+"...";
@@ -514,6 +612,17 @@
                     }
                 });
             }
+        },
+        oneditresize: function(size) {
+            var rows = $("#dialog-form>div:not(.node-input-property-container-row):visible");
+            var height = size.height;
+            for (var i=0; i<rows.length; i++) {
+                height -= $(rows[i]).outerHeight(true);
+            }
+            var editorRow = $("#dialog-form>div.node-input-property-container-row");
+            height -= (parseInt(editorRow.css("marginTop"))+parseInt(editorRow.css("marginBottom")));
+            height += 16;
+            $("#node-input-property-container").editableList('height',height);
         }
     });
 

packages/node_modules/@node-red/nodes/core/common/20-inject.js

@@ -20,9 +20,23 @@ module.exports = function(RED) {
 
     function InjectNode(n) {
         RED.nodes.createNode(this,n);
-        this.topic = n.topic;
+        
-        this.payload = n.payload;
+        /* Handle legacy */
-        this.payloadType = n.payloadType;
+        if(!Array.isArray(n.props)){
+            n.props = [];
+            n.props.push({
+                p:'payload',
+                v:n.payload,
+                vt:n.payloadType
+            });
+            n.props.push({
+                p:'topic',
+                v:n.topic,
+                vt:'str'
+            });
+        }
+        
+        this.props = n.props;
         this.repeat = n.repeat;
         this.crontab = n.crontab;
         this.once = n.once;
@@ -62,34 +76,27 @@ module.exports = function(RED) {
           node.repeaterSetup();
         }
 
-        this.on("input",function(msg) {
+        this.on("input", function(msg) {
-            msg.topic = this.topic;
+            var errors = [];
-            if (this.payloadType !== 'flow' && this.payloadType !== 'global') {
-                try {
-                    if ( (this.payloadType == null && this.payload === "") || this.payloadType === "date") {
-                        msg.payload = Date.now();
-                    } else if (this.payloadType == null) {
-                        msg.payload = this.payload;
-                    } else if (this.payloadType === 'none') {
-                        msg.payload = "";
-                    } else {
-                        msg.payload = RED.util.evaluateNodeProperty(this.payload,this.payloadType,this,msg);
-                    }
-                    this.send(msg);
-                    msg = null;
-                } catch(err) {
-                    this.error(err,msg);
-                }
-            } else {
-                RED.util.evaluateNodeProperty(this.payload,this.payloadType,this,msg, function(err,res) {
-                    if (err) {
-                        node.error(err,msg);
-                    } else {
-                        msg.payload = res;
-                        node.send(msg);
-                    }
 
-                });
+            this.props.forEach(p => {
+                var property = p.p;
+                var value = p.v ? p.v : '';
+                var valueType = p.vt ? p.vt : 'str';
+
+                if (!property) return;
+
+                try {
+                    msg[property] = RED.util.evaluateNodeProperty(value, valueType, this, msg);
+                } catch (err) {
+                    errors.push(err);
+                }
+            });
+
+            if (errors.length) {
+                node.error(errors.join('; '), msg);
+            } else {
+                node.send(msg);
             }
         });
     }