[CCSDK-28] populated the seed code for dgbuilder

[ccsdk/distribution.git] / dgbuilder / core_nodes / core / 89-trigger.js

diff --git a/dgbuilder/core_nodes/core/89-trigger.js b/dgbuilder/core_nodes/core/89-trigger.js
new file mode 100644 (file)
index 0000000..d86a213
--- /dev/null
+++ b/dgbuilder/core_nodes/core/89-trigger.js
@@ -0,0 +1,91 @@
+/**
+ * Copyright 2014 IBM Corp.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+module.exports = function(RED) {
+    "use strict";
+    var mustache = require("mustache");
+    function TriggerNode(n) {
+        RED.nodes.createNode(this,n);
+        this.op1 = n.op1 || "1";
+        this.op2 = n.op2 || "0";
+        this.op1type = n.op1type || "val";
+        this.op2type = n.op2type || "val";
+        this.extend = n.extend || false;
+        this.units = n.units || "ms";
+        this.duration = n.duration || 250;
+        if (this.duration <= 0) { this.duration = 0; }
+        else {
+            if (this.units == "s") { this.duration = this.duration * 1000; }
+            if (this.units == "min") { this.duration = this.duration * 1000 * 60; }
+            if (this.units == "hr") { this.duration = this.duration * 1000 *60 * 60; }
+        }
+        this.op1Templated = this.op1.indexOf("{{") != -1;
+        this.op2Templated = this.op2.indexOf("{{") != -1;
+        if (!isNaN(this.op1)) { this.op1 = Number(this.op1); }
+        if (!isNaN(this.op2)) { this.op2 = Number(this.op2); }
+        if (this.op1 == "true") { this.op1 = true; }
+        if (this.op2 == "true") { this.op1 = true; }
+        if (this.op1 == "false") { this.op2 = false; }
+        if (this.op2 == "false") { this.op2 = false; }
+        if (this.op1 == "null") { this.op1 = null; }
+        if (this.op2 == "null") { this.op1 = null; }
+        try { this.op1 = JSON.parse(this.op1); }
+        catch(e) { this.op1 = this.op1; }
+        try { this.op2 = JSON.parse(this.op2); }
+        catch(e) { this.op2 = this.op2; }
+
+        var node = this;
+        var tout = null;
+        var m2;
+        this.on("input", function(msg) {
+            if (msg.hasOwnProperty("reset")) {
+                clearTimeout(tout);
+                tout = null;
+            }
+            else {
+                if (!tout) {
+                    if (node.op2type === "pay") { m2 = msg.payload; }
+                    else if (node.op2Templated) { m2 = mustache.render(node.op2,msg); }
+                    else { m2 = node.op2; }
+                    if (node.op1type === "pay") { }
+                    else if (node.op1Templated) { msg.payload = mustache.render(node.op1,msg); }
+                    else { msg.payload = node.op1; }
+                    if (node.op1type !== "nul") { node.send(msg); }
+                    if (node.duration === 0) { tout = "infinite"; }
+                    else {
+                        tout = setTimeout(function() {
+                            msg.payload = m2;
+                            if (node.op2type !== "nul") { node.send(msg); }
+                            tout = null;
+                        },node.duration);
+                    }
+                }
+                else if ((node.extend == "true") && (node.duration > 0)) {
+                    clearTimeout(tout);
+                    tout = setTimeout(function() {
+                        msg.payload = m2;
+                        if (node.op2type !== "nul") { node.send(msg); }
+                        tout = null;
+                    },node.duration);
+                }
+            }
+        });
+        this.on("close", function() {
+            if (tout) { clearTimeout(tout); }
+        });
+    }
+    RED.nodes.registerType("trigger",TriggerNode);
+}