100 lines
3.9 KiB
JavaScript
100 lines
3.9 KiB
JavaScript
/**
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* Copyright 2015, 2016 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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module.exports = function(RED) {
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"use strict";
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var express = require("express");
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var io = require('socket.io');
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var socket;
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var WorldMap = function(n) {
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RED.nodes.createNode(this,n);
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if (!socket) { socket = io.listen(RED.server); }
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this.lat = n.lat || "";
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this.lon = n.lon || "";
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this.zoom = n.zoom || "";
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this.layer = n.layer || "";
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this.cluster = n.cluster || "";
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this.maxage = n.maxage || "";
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var node = this;
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//node.log("Serving map from "+__dirname+" as "+RED.settings.httpNodeRoot.slice(0,-1)+"/worldmap");
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RED.httpNode.use("/worldmap", express.static(__dirname + '/worldmap'));
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var callback = function(client) {
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client.setMaxListeners(0);
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node.status({fill:"green",shape:"dot",text:"connected "+socket.engine.clientsCount});
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function handler(msg) {
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client.emit("worldmapdata",msg.payload);
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}
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node.on('input', handler);
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client.on('worldmap', function(data) {
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if (data.action === "connected") {
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var c = {init:true};
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if (node.lat && node.lat.length > 0) { c.lat = node.lat; }
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if (node.lon && node.lon.length > 0) { c.lon = node.lon; }
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if (node.zoom && node.zoom.length > 0) { c.zoom = node.zoom; }
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if (node.layer && node.layer.length > 0) { c.layer = node.layer; }
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if (node.cluster && node.cluster.length > 0) { c.cluster = node.cluster; }
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if (node.maxage && node.maxage.length > 0) { c.maxage = node.maxage; }
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client.emit("worldmapdata",{command:c});
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}
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});
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client.on('disconnect', function() {
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node.removeListener("input", handler);
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node.status({fill:"green",shape:"ring",text:"connected "+socket.engine.clientsCount});
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});
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node.on("close", function() {
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client.disconnect(true);
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});
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}
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node.on("close", function() {
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node.status({});
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//socket.close();
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});
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socket.on('connection', callback);
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}
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RED.nodes.registerType("worldmap",WorldMap);
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var WorldMapIn = function(n) {
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RED.nodes.createNode(this,n);
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if (!socket) { socket = io.listen(RED.server); }
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var node = this;
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var callback = function(client) {
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client.setMaxListeners(0);
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node.status({fill:"green",shape:"dot",text:"connected "+socket.engine.clientsCount});
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client.on('worldmap', function(data) {
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node.send({payload:data, topic:"worldmap"});
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});
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client.on('disconnect', function() {
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node.status({fill:"green",shape:"ring",text:"connected "+socket.engine.clientsCount});
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node.send({payload:{action:"disconnect", clients:socket.engine.clientsCount}, topic:"worldmap"});
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});
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node.on("close", function() {
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client.disconnect(true);
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});
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}
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node.on("close", function() {
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node.status({});
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//socket.close();
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});
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socket.on('connection', callback);
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}
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RED.nodes.registerType("worldmap in",WorldMapIn);
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}
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