node-red-node-jy-archer/jy-archer.js

jy-archer allows you to exchange data with Archer Html Page

/**
* 
**/

module.exports = function(RED) {
    "use strict";     

    function ArcheroutNode(config) {
        RED.nodes.createNode(this,config);      
        this.config = config;
        this.status({fill:"green",shape:"dot",text:"OK"});
        var node = this;

        function inputlistener(msg) {           
            var vval    = node.config.vval || msg.payload;
            var vtype   = Number(node.config.vtype);
                         
            if(vtype===1) // number
            {
                if(isNaN(vval)) {
                    this.status({fill:"red",shape:"dot",text:'err.'+vval});
                    return;
                }
            }
            else if(vtype===2) // text
            {
                vval="'"+vval+"'";
            }
            else // boolean
            {
                if (vval === "true" || vval===1 || vval===true) { 
                    vval='true'; 
                }
                if (vval === "false" || vval===0 || vval===false) { 
                    vval='false'; 
                }
            }
            node.send({payload:{etype:'eval',
                prop:"graphic.setValue('"+node.config.vname+"',"+vval+");",
                value:[]}});
                            
        }

        node.on("input", inputlistener);        

        node.on("close", function(done) {
            if (node.retry) { clearTimeout(node.retry); }
            node.status({fill:"red",shape:"ring",text:"closed"});           
            done();
        });

    }
    RED.nodes.registerType("jy-archer out",ArcheroutNode);
    
    // msg.payload [string] = "{"etype":"archer","prop":"on","value":1}"
    function ArcherinNode(config) {
        RED.nodes.createNode(this,config);       
        this.config = config;
        this.status({fill:"green",shape:"dot",text:"OK"});
        var node = this;

        function inputlistener(msg) {          
            
            if(!(typeof msg.payload==='string'))
            {
                this.status({fill:"red",shape:"dot",text:'er.not string'});
                return;
            }
            var argu=JSON.parse(msg.payload);
            if(!argu.hasOwnProperty("etype")) 
            {
                this.status({fill:"red",shape:"dot",text:'er.no etype'});
                return;
            }
            if(argu.etype!='archer')
            {
                this.status({fill:"red",shape:"dot",text:'er.no archer'});
                return;    
            }
            if(!argu.hasOwnProperty("prop")) 
            {
                this.status({fill:"red",shape:"dot",text:'er.no prop'});
                return;
            }
            var prop=argu.prop;
            if(prop===''||node.config.prop!=prop) return;            
            if(!argu.hasOwnProperty("value")) 
            {
                this.status({fill:"red",shape:"dot",text:'er.no value'});
                return;
            }                   
            node.send({topic:node.config.topic,payload:argu.value});                            
        }

        node.on("input", inputlistener);        

        node.on("close", function(done) {
            if (node.retry) { clearTimeout(node.retry); }
            node.status({fill:"red",shape:"ring",text:"closed"});           
            done();
        });

    }       
    RED.nodes.registerType("jy-archer in",ArcherinNode);

    // send eval to archer page
    function ArcherevalNode(config) {
        RED.nodes.createNode(this,config);        
        this.config = config;
        this.status({fill:"green",shape:"dot",text:"OK"});
        var node = this;

        function inputlistener(msg) {          
            var prop = node.config.prop;
            var value = node.config.value||msg.payload;   
            node.send({payload:{etype:'eval', prop:prop, value:value}});                            
        }

        node.on("input", inputlistener);        

        node.on("close", function(done) {
            if (node.retry) { clearTimeout(node.retry); }
            node.status({fill:"red",shape:"ring",text:"closed"});           
            done();
        });

    }
    RED.nodes.registerType("jy-archer eval",ArcherevalNode);

    // run function of the archer page
    function ArcherrunNode(config) {
        RED.nodes.createNode(this,config);        
        this.config = config;
        this.status({fill:"green",shape:"dot",text:"OK"});
        var node = this;

        function inputlistener(msg) {          
            var prop = node.config.prop;
            var value = node.config.value||msg.payload;                
            node.send({payload:{etype:'runFunction', prop:prop, value:value}});                            
        }

        node.on("input", inputlistener);        

        node.on("close", function(done) {
            if (node.retry) { clearTimeout(node.retry); }
            node.status({fill:"red",shape:"ring",text:"closed"});           
            done();
        });

    }   

    RED.nodes.registerType("jy-archer run",ArcherrunNode);
}