mirror of
https://github.com/node-red/node-red.git
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63 lines
1.6 KiB
JavaScript
63 lines
1.6 KiB
JavaScript
/**
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* Copyright 2013 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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var RED = require("../../red/red");
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var blinkstick = require("blinkstick");
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Object.size = function(obj) {
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var size = 0, key;
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for (key in obj) { if (obj.hasOwnProperty(key)) size++; }
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return size;
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};
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function BlinkStick(n) {
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RED.nodes.createNode(this,n);
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var p1 = /^\#[A-Fa-f0-9]{6}$/
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var p2 = /[0-9]+,[0-9]+,[0-9]+/
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this.led = blinkstick.findFirst(); // maybe try findAll() (one day)
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var node = this;
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this.on("input", function(msg) {
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if (msg != null) {
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if (Object.size(node.led) !== 0) {
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try {
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if (p2.test(msg.payload)) {
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var rgb = msg.payload.split(",");
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node.led.setColor(parseInt(rgb[0])&255, parseInt(rgb[1])&255, parseInt(rgb[2])&255);
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}
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else {
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node.led.setColor(msg.payload);
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}
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}
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catch (err) {
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node.warn("BlinkStick missing ?");
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node.led = blinkstick.findFirst();
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}
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}
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else {
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node.warn("No BlinkStick found");
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node.led = blinkstick.findFirst();
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}
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}
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});
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if (Object.size(node.led) === 0) {
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node.error("No BlinkStick found");
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}
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}
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RED.nodes.registerType("blinkstick",BlinkStick);
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