https://nayanazriya.com/e-202322.js

1//
2// Making a change to this file? Be sure to apply the changes to the WPCOM
3// stats JS file (w.js) as well!
4//
5
6window.wpcom = window.wpcom || {};
7window._stq = window._stq || [];
8
9function st_go( a ) {
10	window._stq.push([ 'view', a ]);
11};
12
13function linktracker_init( b, p ) {
14	window._stq.push([ 'clickTrackerInit', b, p ]);
15};
16
17window.wpcom.stats = (function() {
18	var _clickTracker = (function() {
19		var _blog, _post;
20
21		var _addEvent = function( el, t, cb ) {
22			if ( 'function' === typeof el.addEventListener ) {
23				el.addEventListener( t, cb );
24			} else if ( 'object' === typeof el.attachEvent ) {
25				el.attachEvent( 'on' + t, cb );
26			}
27		};
28
29		var _getClickTarget = function( e ) {
30			if ( 'object' === typeof e && e.target ) {
31				return e.target;
32			} else {
33				return window.event.srcElement;
34			}
35		};
36
37		var _clickTrack = function( e ) {
38			var d = 0;
39			if ( 'object' === typeof InstallTrigger ) d = 100; // Firefox
40			if ( 7 === _getIEVer() ) d = 100; // IE 7 with empty cache needs to wait
41			_processLink( _getClickTarget( e ), d );
42		};
43
44		var _contextTrack = function( e ) {
45			_processLink( _getClickTarget( e ), 0 );
46		};
47
48		var _isSameHost = function( a ) {
49			var l = document.location;
50			if ( l.host === a.host ) return true;
51			// Oy, IE9! Sometimes host is blank
52			if ( '' === a.host ) return true;
53			// Oy, IE6/7/8! We need to handle default ports manually
54			if ( l.protocol === a.protocol && l.host === a.hostname ) {
55				if ( 'http:' === l.protocol && l.host + ':80' === a.host ) return true;
56				if ( 'https:' === l.protocol && l.host + ':443' === a.host ) return true;
57			};
58			return false;
59		};
60
61		var _processLink = function( a, d ) {
62			try {
63				if ( 'object' !== typeof a ) return;
64				while ( 'A' !== a.nodeName ) {
65					if ( 'undefined' === typeof a.nodeName ) return;
66					if ( 'object' !== typeof a.parentNode ) return;
67					a = a.parentNode;
68				};
69				if ( _isSameHost( a ) ) return;
70				if ( 'javascript:' === a.protocol ) return;
71				window._stq.push([ 'click', {
72					s: '2',
73					u: a.href,
74					r: ( 'undefined' !== typeof a.rel ) ? a.rel : '0',
75					b: ( 'undefined' !== typeof _blog ) ? _blog : '0',
76					p: ( 'undefined' !== typeof _post ) ? _post : '0'
77				} ]);
78				if ( d ) {
79					var now = new Date();
80					var end = now.getTime() + d;
81					while ( true ) {
82						now = new Date();
83						if ( now.getTime() > end ) {
84							break
85						}
86					}
87				}
88			} catch ( e ) {}
89		};
90
91		var API = {
92			init: function( b, p ) {
93				_blog = b;
94				_post = p;
95				if ( document.body ) {
96					_addEvent( document.body, 'click', _clickTrack );
97					_addEvent( document.body, 'contextmenu', _contextTrack );
98				} else if ( document ) {
99					_addEvent( document, 'click', _clickTrack );
100					_addEvent( document, 'contextmenu', _contextTrack );
101				}
102			}
103		};
104
105		return API;
106	})();
107
108	var _getIEVer = function() {
109		var v = 0;
110		if ( 'object' === typeof navigator && navigator.appName == 'Microsoft Internet Explorer' ) {
111			var m = navigator.userAgent.match( /MSIE ([0-9]{1,})[\.0-9]{0,}/ );
112			if ( null !== m ) {
113				v = parseInt( m[1] );
114			}
115		};
116		return v;
117	};
118
119	var _serialize = function( o ) {
120		var p, q = [];
121		for ( p in o ) {
122			if ( o.hasOwnProperty( p ) ) {
123				q.push( encodeURIComponent( p ) + '=' + encodeURIComponent( o[ p ] ) );
124			}
125		};
126		return q.join( '&' );
127	};
128
129	var _loadGif = function( t, q, id ) {
130		var i = new Image();
131		i.src = document.location.protocol + 'http://pixel.wp.com/' + t + '?' + q + '&rand=' + Math.random();
132		i.alt = "";
133		i.width = '6';
134		i.height = '5';
135		if ( 'string' === typeof id && document.body ) {
136			i.id = id;
137			document.body.appendChild( i );
138		}
139	};
140
141	// try to fetch paint and network timings using the
142	// various performance APIs
143	var _computePerformance = function( o ) {
144		var conn = navigator.connection || navigator.mozConnection || navigator.webkitConnection;
145
146		if ( conn ) {
147			// 'slow-sg', '2g', '3g', or '4g'
148			if ( conn.effectiveType ) { o.conn_type = conn.effectiveType; }
149			if ( conn.rtt ) { o.conn_rtt = conn.rtt; }
150			if ( conn.downlink ) { o.conn_downlink = conn.downlink; }
151		}
152
153		if ( window.performance ) {
154			var performance = window.performance;
155
156			if ( window.PerformanceNavigationTiming ) {
157				var navigationTiming = performance.getEntriesByType('navigation')[0];

158				if ( navigationTiming.nextHopProtocol ) {
159					o.protocol = navigationTiming.nextHopProtocol;
160				}
161			}
162
163			// response start time, only if we're loading or reloading (not hitting back button, for example)
164			// see: https://developer.mozilla.org/en-US/docs/Web/API/PerformanceTiming
165			if ( performance.timing && performance.navigation && ( performance.navigation.type === 0 || performance.navigation.type === 1 ) ) {
166				// these are about how long the page took to download
167				var t = performance.timing;
168
169				// these are about network conditions
170				o.dns_latency = Math.round( t.domainLookupEnd - t.domainLookupStart );
171				o.conn_latency = Math.round( t.connectEnd  - t.connectStart );
172				o.resp_latency = Math.round( t.responseStart - t.requestStart );
173				o.resp_duration = Math.round( t.responseEnd - t.responseStart );
174
175				// these are about how long the page took to process
176				o.dom_interact = Math.round( t.domInteractive - t.navigationStart );
177				o.dom_load = Math.round( t.domContentLoadedEventStart - t.navigationStart );
178
179				if ( t.loadEventStart > 0 ) {
180					o.page_load = Math.round( t.loadEventStart - t.navigationStart );
181				}
182			}
183
184			// resource types, protocols and duration
185			var resources = performance.getEntriesByType('resource');
186
187			if ( resources.length > 0 ) {
188				var cssFiles = 0, jsFiles = 0, imgFiles = 0, fontFiles = 0, otherFiles = 0,
189					cssDuration = 0, jsDuration = 0, imgDuration = 0, fontDuration = 0, otherDuration = 0,
190					http1Files = 0, http2Files = 0, sslFiles = 0,
191					originFiles = 0, externalFiles = 0;
192
193				for( var i = 0; i < resources.length; i++ ) {
194					var resource = resources[i];
195
196					// figure out how many bytes were transferred over http 1/2 and with/without SSL
197					if ( resource.nextHopProtocol ) {
198						if ( resource.nextHopProtocol.startsWith( 'http/1' ) ) {
199							http1Files += 1;
200						} else if ( 'h2' === resource.nextHopProtocol ) {
201							http2Files += 1;
202						}
203
204						if ( resource.name.startsWith( 'https' ) ) {
205							sslFiles += 1;
206						}
207					} else {
208						http1Files += 1;
209						if ( resource.name.startsWith( 'https' ) ) {
210							sslFiles += 1;
211						}
212					}
213
214					// are files loaded from origin, or remote?
215					if ( resource.name.indexOf( location.hostname ) >= 0 ) {
216						originFiles += 1;
217					} else {
218						externalFiles += 1;
219					}
220
221					var extension;
222
223					// special, common case
224					if( resource.name.indexOf( 'fonts.googleapis.com/css' ) >= 0 ) {
225						extension = 'css';
226					} else {
227						extension = resource.name.split(/\#|\?/)[0].split('.').pop();
228					}
229
230					if ( extension ) {
231						extension = extension.toLowerCase();
232						// figure out file types number and duration
233						if ( 'js' === extension ) {
234							jsDuration += resource.duration;
235							jsFiles += 1;
236						} else if ( 'css' === extension ) {
237							cssDuration += resource.duration;
238							cssFiles += 1;
239						} else if ( 'gif' === extension || 'jpg' === extension || 'jpeg' === extension || 'png' === extension ) {
240							imgDuration += resource.duration;
241							imgFiles += 1;
242						} else if ( 'woff' === extension || 'woff2' === extension || 'ttf' === extension || 'otf' === extension ) {
243							fontDuration += resource.duration;
244							fontFiles += 1;
245						} else {
246							otherDuration += resource.duration;
247							otherFiles += 1;
248						}
249					} else {
250						otherDuration += resource.duration;
251						otherFiles += 1;
252					}
253				}
254
255				o.files_origin = originFiles;
256				o.files_ext = externalFiles;
257				o.files_ssl = sslFiles;
258				o.files_http1 = http1Files;
259				o.files_http2 = http2Files;
260				o.files_js = jsFiles;
261				o.files_css = cssFiles;
262				o.files_img = imgFiles;
263				o.files_font = fontFiles;
264				o.files_other = otherFiles;
265				o.duration_js = Math.round( jsDuration );
266				o.duration_css = Math.round( cssDuration );
267				o.duration_img = Math.round( imgDuration );
268				o.duration_font = Math.round( fontDuration );
269				o.duration_other = Math.round( otherDuration );
270			}
271
272			// how long did it take for content to appear on the screen?
273			// see: https://developer.mozilla.org/en-US/docs/Web/API/PerformancePaintTiming
274			var paintEntries = performance.getEntriesByType('paint');
275
276			if ( paintEntries === undefined ) {
277				return;
278			}
279
280			for( var i = 0; i < paintEntries.length; i++ ) {
281				var performanceEntry = paintEntries[i];
282				if ( 'first-paint' === performanceEntry.name ) {
283					o.first_paint = Math.round( performanceEntry.startTime );
284				} else if ( 'first-contentful-paint' === performanceEntry.name ) {
285					o.first_cf_paint = Math.round( performanceEntry.startTime );
286				}
287			}
288		}
289	};
290
291	// <3 KM
292	var STQ = function( q ) {
293		this.a = 1;
294		if ( q && q.length ) {
295			for ( var i = 0; i < q.length; i++ ) {
296				this.push( q[ i ] );
297			}
298		}
299	};
300
301	STQ.prototype.push = function( args ) {
302		if ( args ) {
303			if ( "object" === typeof args && args.length ) {
304				var cmd = args.splice( 0, 1 );
305				if ( API[ cmd ] ) API[ cmd ].apply( null, args );
306			} else if ( "function" === typeof args ) {
307				args();
308			}
309		}
310	};
311
312	var initQueue = function() {
313		if ( !window._stq.a ) {
314			window._stq = new STQ( window._stq );
315		}
316	};
317
318	var newAnonId = function() {
319		var randomBytesLength = 18, // 18 * 4/3 = 24 (base64 encoded chars)
320			randomBytes = [];
321
322		if ( window.crypto && window.crypto.getRandomValues ) {
323			randomBytes = new Uint8Array( randomBytesLength );
324			window.crypto.getRandomValues( randomBytes );
325		} else {
326			for ( var i = 0; i < randomBytesLength; ++i ) {
327				randomBytes[ i ] = Math.floor( Math.random() * 256 );
328			}
329		}
330
331		return btoa( String.fromCharCode.apply( String, randomBytes ) );
332	};
333
334	var _initTracks = function( o ) {
335		o._ui = newAnonId();
336		o._ut = 'anon';
337		o._en = 'jetpack_pageview_timing';
338		var date = new Date();
339		o._ts = date.getTime();
340		o._tz = date.getTimezoneOffset() / 60;
341
342		var nav = window.navigator;
343		var screen = window.screen;
344		o._lg = nav.language;
345		o._pf = nav.platform;
346		o._ht = screen.height;
347		o._wd = screen.width;
348		var sx = (window.pageXOffset !== undefined) ? window.pageXOffset : (document.documentElement || document.body.parentNode || document.body).scrollLeft;
349		var sy = (window.pageYOffset !== undefined) ? window.pageYOffset : (document.documentElement || document.body.parentNode || document.body).scrollTop;
350
351		o._sx = (sx !== undefined) ? sx : 0;
352		o._sy = (sy !== undefined) ? sy : 0;
353
354		if( document.location !== undefined ) {
355			o._dl = document.location.toString();
356		}
357
358		if( document.referrer !== undefined ) {
359			o._dr = document.referrer;
360		}
361	};
362
363	var API = {
364		view: function( o ) {
365			o.host = document.location.host;
366			o.ref = document.referrer;
367			o.fcp = getFirstContentfulPaint();
368			_loadGif( 'g.gif', _serialize( o ), 'wpstats' );
369			// run performance analytics after load event has finished processing
370			if ( window.performance && Math.random() < 0.005 ) {
371				window.addEventListener( 'load', function(event) {
372					window.setTimeout( API.samplePerformance.bind( this, o.blog, o.post, o.j.split(':').reverse()[0] ), 100 );
373				} );
374			}
375		},
376		click: function( o ) {
377			_loadGif( 'c.gif', _serialize( o ), false );
378		},
379		clickTrackerInit: function( b, p ) {
380			_clickTracker.init( b, p );
381		},
382		samplePerformance: function( blogId, postId, jetpackVersion ) {
383			if ( ! window.performance ) {
384				return;
385			}
386
387			var o = { blog: blogId, post: postId, blog_id: blogId, jetpack_version: jetpackVersion };
388			_initTracks( o );
389			_computePerformance( o );
390			_loadGif( 't.gif', _serialize( o ) );
391		}
392	};
393
394	var isDocumentHidden = function() {
395		return typeof document.hidden !== "undefined" && document.hidden;
396	};
397
398	var onDocumentVisibilityChange = function() {
399		// no need to use `isDocumentHidden()` since this is only called 

399if the Page Visibility API is supported
400		if ( !document.hidden ) {
401			// we only want to do this the first time the document becomes visible
402			document.removeEventListener( 'visibilitychange', onDocumentVisibilityChange );
403			initQueue();
404		}
405	};
406
407	var initQueueAfterDocumentIsVisible = function() {
408			document.addEventListener( 'visibilitychange', onDocumentVisibilityChange );
409	};
410
411	function getFirstContentfulPaint() {
412		if ( window.performance ) {
413			var paints = window.performance.getEntriesByType( 'paint' );
414			for ( var i = 0; i < paints.length; i++ ) {
415				if ( paints[i]['name'] === 'first-contentful-paint' ) {
416					return Math.round( paints[i]['startTime'] );
417				}
418			}
419		}
420
421		// If we are still here then return a default value of zero.  The
422		// stats parser will take that as an invalid value and skip it.
423		return 0;
424	}
425
426	// Wait for document ready +250ms before init for IE6 only otherwise stats pixels may get sent twice
427	if ( 6 === _getIEVer() && 'complete' !== document.readyState && 'object' === typeof document.attachEvent ) {
428		document.attachEvent( 'onreadystatechange', function( e ) {
429			if ( 'complete' === document.readyState ) window.setTimeout( initQueue, 250 );
430		} );
431	} else {
432		// only init stats queue once document is visible;
433		// this prevents miscounting stats when a page is prerendered
434		// or if opened in a new hidden tab and never actually viewed
435		if ( isDocumentHidden() ) {
436			initQueueAfterDocumentIsVisible();
437		} else {
438			initQueue();
439		}
440	};
441
442	return API;
443})();