Source: tdtrader.js

// CHANGE RANGESELECTOR'S VALUE
// chart.rangeSelector.buttons[2].setState(3);
// chart.rangeSelector.clickButton(2,{ type:'month', count:'6' } ,tru

/**
 * Tdtrader Component<BR>
 * <BR><BR><img src=/tk/lib/components/w/img/tdtrader.png width=30% style="border:1px lime dashed;padding:20px">
 * <BR><BR><a href="/tk/lib/components/w/html/tdtrader.html">DEMO</a>
 */
class Tdtrader extends HTMLElement {
    constructor() {
        wc.group("Tdtrader.constructor")
	
        super();

        wc.groupEnd();
    };
    
    /**
     * Set observable values here. When Changed, attributeChangedCallback is invoked
     * @observedAttributes
     */
    static get observedAttributes() {
        wc.group("Tdtrader.observedAttributes");

	this.observables = [];

        wc.groupEnd();
        return this.observables;
    };

    /**
     * Called when this is attached to DOM
     * @connectedCallback. 
     */
    connectedCallback() {
        wc.group("Tdtrader.connectedCallback")
	
	let self = this;

	this.hc = [];

	// ADD A RANDOM ID IF NONE EXIST
	if (!this.id) {
	    this.id = this.constructor.name.toLowerCase() + "-" + wc.uid();
	}

	// GET PROPERTIES AND INTERESTING ELEMENTS
	this._initialize();

	// ADD COMPONENT MARKTOP
	this.innerHTML = this._template()


	this.symbols = wc.getSearchParam("symbols").toUpperCase().split(",");

	for (var i = 0; i < this.symbols.length; i++) {
	    this._chart(this.symbols[i]);
	}

	// HIDE CHART NAVIGATOR
	if (0) {
	    let elements = ".highcharts-grid.highcharts-xaxis-grid.highcharts-navigator-xaxis, .highcharts-navigator, .highcharts-axis-labels.highcharts-xaxis-labels.highcharts-navigator-xaxis";
	    $(elements).toggle()
	    //let h = $(".highcharts-container").height()
	    //$(".highcharts-container").height(h-40)

	    $(".highcharts-container").hover(function(){
		$(elements).toggle();
		//$(".highcharts-container").height(h)
	    }, function(){
		$(elements).toggle();
		//$(".highcharts-container").height(h-40)
	    });
	}
	
	this._ws();

	// ADD STATS AND OTHER FINAL STUFF
	this._finalize();

	ga('send', {'hitType': 'event','eventCategory': 'wc-connected','eventAction': 'connected','eventLabel': this.properties.cname, 'eventValue':JSON.stringify({'env':wcENV,'app':wcAPP,'url':wcURL})});

        wc.groupEnd();
    };

    /**
     * Initial Markup
     * @private
     * @_template
     */
    _template() {
        wc.group("Tdtrader.template");
	
	var temp = this.dom.content;

        wc.groupEnd();
        return temp;
    };

    /**
     * Called with .setAttribute(...) function call
     * @attributeChangedCallback
     */
    attributeChangedCallback(attr, oldval, newval) {
        wc.group("Tdtrader.attributeChangedCallback:", attr, oldval, newval);

	this.properties = this.properties || [];

	let obs = Tdtrader.observedAttributes;

	for (let i = 0; i < obs.length; i++) {
	    if (newval) {
		this.properties[obs[i]] = newval;
	    }
	}
	
	// YOUR CODE FOR CHANGES GO HERE (MAYBE NULL FIRST TIME THROUGH)
	try {
	    switch(attr) 
	    {
		case "header":
		//this.querySelector("h1").innerHTML = newval;
		break;
		
		default:
		break;
	    }
	} catch(e) {
	    wc.warn(e.name + ' > ' + e.message);
	}

        wc.groupEnd();
    };

    /**
     * Stores DOM elements of interest for future use
     * @private
     * @_fetchElements
     */
    _fetchElements() {
	wc.group("Tdtrader._fetchElements");
	
	this.dom = this.dom || [];
	this.dom.content = this.innerHTML;

	wc.groupEnd();
    };

    /**
     * Component attributes are _fetched and defaults are set if undefined
     * @private
     * @_fetchAttributes
     */
    _fetchAttributes() {
	wc.group("Tdtrader._fetchAttributes");
	
	this.properties = {
	    uparam	: "",
	    cname	: "Tdtrader",
	    author	: "Mel M. Heravi, Ph.D.",
	    version	: "1.0"
	};
	
	// SAVE WIDGET SPECIFIC PROPERTIES
	this.propertiesW = [];
	
	// SAVE ALL OTHER PROPERTIES
	let attrs = wc.getAttributes(this)
	
 	for (var key in attrs) {
	    let attr = this.getAttribute(key) || this.properties.key;
	    this.properties[key]  = this.getAttribute(key);
	    this.propertiesW[key] = this.getAttribute(key);
	    wc.log(key + ": " + attrs[key]);
	}

	// SET ALL INITIAL ATTRIBUTES
 	for (var key in this.properties) {
	    switch(key) 
	    {
		case "header":
		break;
		
		default:
		break;
	    }
	}

	wc.log("ATTRIBUTES: ", this.properties);

	wc.groupEnd();
    };

    /**
     * configure the instance object and artifacts
     * @configure
     * @param {string} data use data if exist else use 'this.properties.cfg' parameter
     */
    configure(data) {
	wc.group("Tdtrader.configure:", data);

	// IF JSON VARIABLE (data) IS PROVIDED
	if (data) {
	    this._process(data);
	} else {
	    let self = this;

	    $.getJSON(this.properties.cfg, function(data) {
		self._process(data);
	    }).fail(function(jqXHR, textStatus, errorThrown) {
		alert("ERROR: INCOMING TEXT " + jqXHR.responseText);
	    });
	}

	wc.groupEnd();
    };

    /**
     * _process the instance object and artifacts
     * @private
     * @_process
     */
    _process(data) {
	wc.group("Tdtrader._process:", data);
	
	// DO WHATEVER WITH THE DATA
	
	wc.groupEnd();
    };

    /**
     * Initialize component
     * @private
     * @_initialize
     */
    _initialize() {
	wc.group("Tdtrader._initialize:", this.id);

	// FETCH ALL INTERESTING ELEMENTS
	this._fetchElements();

	// FETCH ALL ATTRIBUTES
	this._fetchAttributes();
	
	wc.groupEnd();
    };

    /**
     * Save data for analytics and final wrap up
     * @private
     * @_finalize
     */
    _finalize() {
	wc.group("Tdtrader._finalize:", this.id);

	this.classList.add("wc");

	// ADD ANALYTICS HERE
	wc.setStats(this, this.properties.cname, this.properties.version);
	
	// SHOW IT NOW (NO FLICKERS) 
	this.style.visibility = "visible";

	wc.groupEnd();
    };

    /**
     * Invoked When component is removed. Usually with a .remove() function call
     * @disconnectedCallback
     */
    disconnectedCallback() {
        wc.group("Tdtrader.disconnectedCallback")

	ga('send', {'hitType': 'event','eventCategory': 'wc-disconnected','eventAction': 'disconnected','eventLabel': this.properties.cname, 'eventValue':JSON.stringify({'env':wcENV,'app':wcAPP,'url':wcURL})});

        wc.groupEnd();
    };

    /**
     * Destroy the instance object and artifacts
     * @destroy
     */
    destroy() {
	wc.group("Tdtrader.destroy");

	// FREE ALL MEMORY
	// you should delete all created objects here
	
	// FREE POINTER
	delete this;
	
	// REMOVE ITEM FROM DOM
	this.parentNode.removeChild(this);

	ga('send', {'hitType': 'event','eventCategory': 'wc-destroyed','eventAction': 'distroy','eventLabel': this.properties.cname, 'eventValue':JSON.stringify({'env':wcENV,'app':wcAPP,'url':wcURL})});

	wc.groupEnd();
    };

    /**
     * @_chart
     */
    _chart(symbol) {
	wc.group("Tdtrader._chart:", symbol);
	
	// SMOOTH LINES
	Highcharts.seriesTypes.line.prototype.getPointSpline = Highcharts.seriesTypes.spline.prototype.getPointSpline;

	let self = this;

	if (symbol.charAt(0) == "$") {
	}

	let columns = wc.getSearchParam("columns") || 4

	$("#tdtrader-chart-container").append(`
<div class="col-md-${columns}">
    <div class="chart-header wc-font-m" style="font-size:12px;">
	${symbol}:
	<span class="${symbol}-price price">---</span>
    </div>

    <div class="border mb-4" id="tdtrader-chart-container-${symbol}">${symbol}</div>
</div>`);

	// Create the chart
	this.hc[symbol] = Highcharts.stockChart(`tdtrader-chart-container-${symbol}`, {
	    chart: {
		height: '41%',
		spacingTop: 0,
		spacingRight: 0,
		spacingBottom: 0,
		spacingLeft: 0,
		plotBorderWidth: 0,
		margin: [0,0,0,0]
	    },
	    
	    credits: {
		enabled: false
	    },

	    navigator: {
    		enabled: true
	    },

	    scrollbar: {
		enabled: false
	    },

	    title: {
		text: null,
	    },

	    time: {
		useUTC: false
	    },

	    xAxis: {
		labels: {
		    style: {
			fontSize: '8px',
			color: '#666'
		    }
		}
	    },

	    rangeSelector: {
		height: 10,
		padding: 0,
		buttons: [{
		    count: 1,
		    type: 'minute',
		    text: '1M'
		}, {
		    count: 5,
		    type: 'minute',
		    text: '5M'
		}, {
		    count: 10,
		    type: 'minute',
		    text: '10M'
		}, {
		    count: 15,
		    type: 'minute',
		    text: '15M'
		}, {
		    type: 'all',
		    text: 'All'
		}],

		inputEnabled: true,
		selected: 2
	    },

	    tooltip: {
		shared: true,
		headerFormat: '<b>{series.name}</b><br/>',
		pointFormat: '{point.y:.4f}',
		style: {
		    fontSize: '9px',
		},
	    },

	    exporting: {
		enabled: false
	    },

	    series: [{
		showInLegend: false,
		name: symbol,
		tooltip: {
		    valueSuffix: ' HHH'
		},
		marker: {
		    enabled: false,
		    radius: 3
		},
		data: (function () {
		    // generate an array of random data
		    var data = [];
		    var time = (new Date()).getTime();
		    var i;

		    for (i = -900; i <= 0; i += 1) {
			data.push([
			    time + i * 1000, null
			]);
		    }
		    return data;
		}())
	    }]
	});

	this.hc[symbol]

	wc.groupEnd();
    }

    /**
     * @_point
     */
    _point(symbol, x, y, o) {
	wc.group("Tdtrader._point:", symbol, x, y);
	
	this.price = this.price || [];

	var series = this.hc[symbol].series[0];
	
	if (symbol.charAt(0) == "$") {
	    symbol = "\\" + symbol;
	}

	var cls = "price-gray;"
	var extra = " | " + o;

	if (o < 0.0) {
	    cls = "price-red";
	} else if (o > 0) {
	    cls = "price-green";
	}

	$(`.${symbol}-price`)
	    .removeClass("price-red price-green price-gray")
	    .addClass(cls)
	    .html(y.toFixed(2) + extra)
	
	series.addPoint([x, y], true, true);

	wc.groupEnd();
    }

    /**
     * @_ws
     */
    _ws() {
	wc.group("Tdtrader._ws");
	
	let self = this;

	websocket.start(function (values) {
	    for (var i = 0; i < values.data[0].content.length; i++) {
		let val = values.data[0].content[i];

		let s = val["key"] // symbol
		let x = val["50"]; // time
		let y = val["2"];  // price
		let o = val["29"]; // NET CHANGE

		if (x && y && o) {
		    self._point(s, x, y, o);
		}
	    }
	});

	wc.groupEnd();
    }

    /**
     * @_test
     * w = document.querySelector("wc-tdtrader")._test(1610291844600)
     */
    _test() {
	wc.group("Tdtrader._test");
	
	for (var i = 0; i < this.symbols.length; i++) {
	    let s = this.symbols[i];
	    
	    let time  = (new Date()).getTime();
	    let y = Math.round(Math.random() * 100);

	    this._point(s, time, y)
	}
	
	setTimeout(() => {
	    this._test();
	}, 500);

	console.groupEnd();
    };
}

window.customElements.define('wc-tdtrader', Tdtrader);