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Expand the non-functional sample to have an input to make it more useful

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This commit is contained in:
Dave C-J 2014-09-18 17:06:35 +01:00
parent da61fe12d0
commit a718f34c58
2 changed files with 18 additions and 9 deletions
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2
nodes/99-sample.html.demo
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@ -65,7 +65,7 @@
name: {value:""}, // along with default values. name: {value:""}, // along with default values.
topic: {value:"", required:true} topic: {value:"", required:true}
}, },
inputs:0, // set the number of inputs - only 0 or 1 inputs:1, // set the number of inputs - only 0 or 1
outputs:1, // set the number of outputs - 0 to n outputs:1, // set the number of outputs - 0 to n
// set the icon (held in icons dir below where you save the node) // set the icon (held in icons dir below where you save the node)
icon: "myicon.png", // saved in icons/myicon.png icon: "myicon.png", // saved in icons/myicon.png

25
nodes/99-sample.js.demo
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@ -20,16 +20,18 @@
module.exports = function(RED) { module.exports = function(RED) {
"use strict"; "use strict";
// require any external libraries we may need....
//var foo = require("foo-library");
// The main node definition - most things happen in here // The main node definition - most things happen in here
function SampleNode(n) { function SampleNode(n) {
// Create a RED node // Create a RED node
RED.nodes.createNode(this,n); RED.nodes.createNode(this,n);
// Store local copies of the node configuration (as defined in the .html) // Store local copies of the node configuration (as defined in the .html)
this.topic = n.topic; this.topic = n.topic;
// Do whatever you need to do in here - declare callbacks etc // Do whatever you need to do in here - declare callbacks etc
// Note: this sample doesn't do anything much - it will only send // Note: this sample doesn't do anything much - it will only send
// this message once at startup... // this message once at startup...
@ -37,19 +39,26 @@ module.exports = function(RED) {
var msg = {}; var msg = {};
msg.topic = this.topic; msg.topic = this.topic;
msg.payload = "Hello world !" msg.payload = "Hello world !"
// send out the message to the rest of the workspace. // send out the message to the rest of the workspace.
this.send(msg); this.send(msg);
// respond to inputs....
this.on('input', function (msg) {
node.warn("I saw a payload: "+msg.payload);
// in this example just send it straight on... should process it here really
this.send(msg);
}
this.on("close", function() { this.on("close", function() {
// Called when the node is shutdown - eg on redeploy. // Called when the node is shutdown - eg on redeploy.
// Allows ports to be closed, connections dropped etc. // Allows ports to be closed, connections dropped etc.
// eg: this.client.disconnect(); // eg: this.client.disconnect();
}); });
} }
// Register the node by name. This must be called before overriding any of the // Register the node by name. This must be called before overriding any of the
// Node functions. // Node functions.
RED.nodes.registerType("sample",SampleNode); RED.nodes.registerType("sample",SampleNode);
} }