ThreeJS-Webpack-ES6-Boilerp.../build/public/assets/js/rStats.js

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JavaScript
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2016-09-12 19:54:07 +00:00
// performance.now() polyfill from https://gist.github.com/paulirish/5438650
'use strict';
( function () {
// prepare base perf object
if ( typeof window.performance === 'undefined' ) {
window.performance = {};
}
if ( !window.performance.now ) {
var nowOffset = Date.now();
if ( performance.timing && performance.timing.navigationStart ) {
nowOffset = performance.timing.navigationStart;
}
window.performance.now = function now () {
return Date.now() - nowOffset;
};
}
if( !window.performance.mark ) {
window.performance.mark = function(){}
}
if( !window.performance.measure ) {
window.performance.measure = function(){}
}
} )();
window.rStats = function rStats ( settings ) {
function iterateKeys ( array, callback ) {
var keys = Object.keys( array );
for ( var j = 0, l = keys.length; j < l; j++ ) {
callback( keys[ j ] );
}
}
function importCSS ( url ) {
var element = document.createElement( 'link' );
element.href = url;
element.rel = 'stylesheet';
element.type = 'text/css';
document.getElementsByTagName( 'head' )[ 0 ].appendChild( element );
}
var _settings = settings || {};
var _colours = _settings.colours || [ '#850700', '#c74900', '#fcb300', '#284280', '#4c7c0c' ];
var _cssFont = 'https://fonts.googleapis.com/css?family=Roboto+Condensed:400,700,300';
var _cssRStats = ( _settings.CSSPath ? _settings.CSSPath : '' ) + 'rStats.css';
var _css = _settings.css || [ _cssFont, _cssRStats ];
_css.forEach(function (uri) {
importCSS( uri );
});
if ( !_settings.values ) _settings.values = {};
var _base, _div, _elHeight = 10, _elWidth = 200;
var _perfCounters = {};
function Graph ( _dom, _id, _defArg ) {
var _def = _defArg || {};
var _canvas = document.createElement( 'canvas' ),
_ctx = _canvas.getContext( '2d' ),
_max = 0,
_current = 0;
var c = _def.color ? _def.color : '#666666';
var _dotCanvas = document.createElement( 'canvas' ),
_dotCtx = _dotCanvas.getContext( '2d' );
_dotCanvas.width = 1;
_dotCanvas.height = 2 * _elHeight;
_dotCtx.fillStyle = '#444444';
_dotCtx.fillRect( 0, 0, 1, 2 * _elHeight );
_dotCtx.fillStyle = c;
_dotCtx.fillRect( 0, _elHeight, 1, _elHeight );
_dotCtx.fillStyle = '#ffffff';
_dotCtx.globalAlpha = 0.5;
_dotCtx.fillRect( 0, _elHeight, 1, 1 );
_dotCtx.globalAlpha = 1;
var _alarmCanvas = document.createElement( 'canvas' ),
_alarmCtx = _alarmCanvas.getContext( '2d' );
_alarmCanvas.width = 1;
_alarmCanvas.height = 2 * _elHeight;
_alarmCtx.fillStyle = '#444444';
_alarmCtx.fillRect( 0, 0, 1, 2 * _elHeight );
_alarmCtx.fillStyle = '#b70000';
_alarmCtx.fillRect( 0, _elHeight, 1, _elHeight );
_alarmCtx.globalAlpha = 0.5;
_alarmCtx.fillStyle = '#ffffff';
_alarmCtx.fillRect( 0, _elHeight, 1, 1 );
_alarmCtx.globalAlpha = 1;
function _init () {
_canvas.width = _elWidth;
_canvas.height = _elHeight;
_canvas.style.width = _canvas.width + 'px';
_canvas.style.height = _canvas.height + 'px';
_canvas.className = 'rs-canvas';
_dom.appendChild( _canvas );
_ctx.fillStyle = '#444444';
_ctx.fillRect( 0, 0, _canvas.width, _canvas.height );
}
function _draw ( v, alarm ) {
_current += ( v - _current ) * 0.1;
_max *= 0.99;
if ( _current > _max ) _max = _current;
_ctx.drawImage( _canvas, 1, 0, _canvas.width - 1, _canvas.height, 0, 0, _canvas.width - 1, _canvas.height );
if ( alarm ) {
_ctx.drawImage( _alarmCanvas, _canvas.width - 1, _canvas.height - _current * _canvas.height / _max - _elHeight );
} else {
_ctx.drawImage( _dotCanvas, _canvas.width - 1, _canvas.height - _current * _canvas.height / _max - _elHeight );
}
}
_init();
return {
draw: _draw
};
}
function StackGraph ( _dom, _num ) {
var _canvas = document.createElement( 'canvas' ),
_ctx = _canvas.getContext( '2d' );
function _init () {
_canvas.width = _elWidth;
_canvas.height = _elHeight * _num;
_canvas.style.width = _canvas.width + 'px';
_canvas.style.height = _canvas.height + 'px';
_canvas.className = 'rs-canvas';
_dom.appendChild( _canvas );
_ctx.fillStyle = '#444444';
_ctx.fillRect( 0, 0, _canvas.width, _canvas.height );
}
function _draw ( v ) {
_ctx.drawImage( _canvas, 1, 0, _canvas.width - 1, _canvas.height, 0, 0, _canvas.width - 1, _canvas.height );
var th = 0;
iterateKeys( v, function ( j ) {
var h = v[ j ] * _canvas.height;
_ctx.fillStyle = _colours[ j ];
_ctx.fillRect( _canvas.width - 1, th, 1, h );
th += h;
} );
}
_init();
return {
draw: _draw
};
}
function PerfCounter ( id, group ) {
var _id = id,
_time,
_value = 0,
_total = 0,
_averageValue = 0,
_accumValue = 0,
_accumStart = performance.now(),
_accumSamples = 0,
_dom = document.createElement( 'div' ),
_spanId = document.createElement( 'span' ),
_spanValue = document.createElement( 'div' ),
_spanValueText = document.createTextNode( '' ),
_def = _settings ? _settings.values[ _id.toLowerCase() ] : null,
_graph = new Graph( _dom, _id, _def ),
_started = false;
_dom.className = 'rs-counter-base';
_spanId.className = 'rs-counter-id';
_spanId.textContent = ( _def && _def.caption ) ? _def.caption : _id;
_spanValue.className = 'rs-counter-value';
_spanValue.appendChild( _spanValueText );
_dom.appendChild( _spanId );
_dom.appendChild( _spanValue );
if ( group ) group.div.appendChild( _dom );
else _div.appendChild( _dom );
_time = performance.now();
function _average ( v ) {
if ( _def && _def.average ) {
_accumValue += v;
_accumSamples++;
var t = performance.now();
if ( t - _accumStart >= ( _def.avgMs || 1000 ) ) {
_averageValue = _accumValue / _accumSamples;
_accumValue = 0;
_accumStart = t;
_accumSamples = 0;
}
}
}
function _start () {
_time = performance.now();
if( _settings.userTimingAPI ) performance.mark( _id + '-start' );
_started = true;
}
function _end () {
_value = performance.now() - _time;
if( _settings.userTimingAPI ) {
performance.mark( _id + '-end' );
if( _started ) {
performance.measure( _id, _id + '-start', _id + '-end' );
}
}
_average( _value );
}
function _tick () {
_end();
_start();
}
function _draw () {
var v = ( _def && _def.average ) ? _averageValue : _value;
_spanValueText.nodeValue = Math.round( v * 100 ) / 100;
var a = ( _def && ( ( _def.below && _value < _def.below ) || ( _def.over && _value > _def.over ) ) );
_graph.draw( _value, a );
_dom.style.color = a ? '#b70000' : '#ffffff';
}
function _frame () {
var t = performance.now();
var e = t - _time;
_total++;
if ( e > 1000 ) {
if ( _def && _def.interpolate === false ) {
_value = _total;
} else {
_value = _total * 1000 / e;
}
_total = 0;
_time = t;
_average( _value );
}
}
function _set ( v ) {
_value = v;
_average( _value );
}
return {
set: _set,
start: _start,
tick: _tick,
end: _end,
frame: _frame,
value: function () {
return _value;
},
draw: _draw
};
}
function sample () {
var _value = 0;
function _set ( v ) {
_value = v;
}
return {
set: _set,
value: function () {
return _value;
}
};
}
function _perf ( idArg ) {
var id = idArg.toLowerCase();
if ( id === undefined ) id = 'default';
if ( _perfCounters[ id ] ) return _perfCounters[ id ];
var group = null;
if ( _settings && _settings.groups ) {
iterateKeys( _settings.groups, function ( j ) {
var g = _settings.groups[ parseInt( j, 10 ) ];
if ( !group && g.values.indexOf( id.toLowerCase() ) !== -1 ) {
group = g;
}
} );
}
var p = new PerfCounter( id, group );
_perfCounters[ id ] = p;
return p;
}
function _init () {
if ( _settings.plugins ) {
if ( !_settings.values ) _settings.values = {};
if ( !_settings.groups ) _settings.groups = [];
if ( !_settings.fractions ) _settings.fractions = [];
for ( var j = 0; j < _settings.plugins.length; j++ ) {
_settings.plugins[ j ].attach( _perf );
iterateKeys( _settings.plugins[ j ].values, function ( k ) {
_settings.values[ k ] = _settings.plugins[ j ].values[ k ];
} );
_settings.groups = _settings.groups.concat( _settings.plugins[ j ].groups );
_settings.fractions = _settings.fractions.concat( _settings.plugins[ j ].fractions );
}
} else {
_settings.plugins = {};
}
_base = document.createElement( 'div' );
_base.className = 'rs-base';
_div = document.createElement( 'div' );
_div.className = 'rs-container';
_div.style.height = 'auto';
_base.appendChild( _div );
document.body.appendChild( _base );
if ( !_settings ) return;
if ( _settings.groups ) {
iterateKeys( _settings.groups, function ( j ) {
var g = _settings.groups[ parseInt( j, 10 ) ];
var div = document.createElement( 'div' );
div.className = 'rs-group';
g.div = div;
var h1 = document.createElement( 'h1' );
h1.textContent = g.caption;
h1.addEventListener( 'click', function ( e ) {
this.classList.toggle( 'hidden' );
e.preventDefault();
}.bind( div ) );
_div.appendChild( h1 );
_div.appendChild( div );
} );
}
if ( _settings.fractions ) {
iterateKeys( _settings.fractions, function ( j ) {
var f = _settings.fractions[ parseInt( j, 10 ) ];
var div = document.createElement( 'div' );
div.className = 'rs-fraction';
var legend = document.createElement( 'div' );
legend.className = 'rs-legend';
var h = 0;
iterateKeys( _settings.fractions[ j ].steps, function ( k ) {
var p = document.createElement( 'p' );
p.textContent = _settings.fractions[ j ].steps[ k ];
p.style.color = _colours[ h ];
legend.appendChild( p );
h++;
} );
div.appendChild( legend );
div.style.height = h * _elHeight + 'px';
f.div = div;
var graph = new StackGraph( div, h );
f.graph = graph;
_div.appendChild( div );
} );
}
}
function _update () {
iterateKeys( _settings.plugins, function ( j ) {
_settings.plugins[ j ].update();
} );
iterateKeys( _perfCounters, function ( j ) {
_perfCounters[ j ].draw();
} );
if ( _settings && _settings.fractions ) {
iterateKeys( _settings.fractions, function ( j ) {
var f = _settings.fractions[ parseInt( j, 10 ) ];
var v = [];
var base = _perfCounters[ f.base.toLowerCase() ];
if ( base ) {
base = base.value();
iterateKeys( _settings.fractions[ j ].steps, function ( k ) {
var s = _settings.fractions[ j ].steps[ parseInt( k, 10 ) ].toLowerCase();
var val = _perfCounters[ s ];
if ( val ) {
v.push( val.value() / base );
}
} );
}
f.graph.draw( v );
} );
}
/*if( _height != _div.clientHeight ) {
_height = _div.clientHeight;
_base.style.height = _height + 2 * _elHeight + 'px';
console.log( _base.clientHeight );
}*/
}
_init();
return function ( id ) {
if ( id ) return _perf( id );
return {
element: _base,
update: _update
};
};
}
if (typeof module === 'object') {
module.exports = window.rStats;
}