web/assets/js/_src/pageviews.js
2019-11-18 01:08:03 +08:00

111 lines
No EOL
2.7 KiB
JavaScript

/**
* Count pageviews form GA or local cache file.
*
* Dependences:
* - jQuery
* - countUp.js(https://github.com/inorganik/countUp.js)
*
* © 2018-2019 Cotes Chung
* MIT License
*/
function countUp(min, max, dest) {
if (min < max) {
var numAnim = new CountUp(dest, min, max);
if (!numAnim.error) {
numAnim.start();
} else {
console.error(numAnim.error);
}
}
}
function countPV(path, rows) {
/* path permalink looks like: '/posts/post-title/' */
var fileName = path.replace(/\/posts\//g, '').replace(/\//g, '.html'); /* e.g. post-title.html */
var count = 0;
var _v2_url = path.replace(/posts\//g, ''); /* the v2.0+ blog permalink: "/post-title/" */
for (var i = 0; i < rows.length; ++i) {
var gaPath = rows[i][0];
if (gaPath == path ||
gaPath == _v2_url ||
gaPath.concat('/') == _v2_url ||
gaPath.slice(gaPath.lastIndexOf('/') + 1) === fileName) { // old permalink record
count += parseInt(rows[i][1]);
}
}
return count;
}
function displayPageviews(rows, hasInit) {
if (rows === undefined) {
return;
}
if ($("#post-list").length > 0) { // the Home page
$(".post-preview").each(function() {
var path = $(this).children("h1").children("a").attr("href");
var count = countPV(path, rows);
count = (count == 0 ? 1 : count);
if (!hasInit) {
$(this).find('.pageviews').text(count);
} else {
var initCount = parseInt($(this).find('.pageviews').text());
if (count > initCount) {
countUp(initCount, count, $(this).find('.pageviews').attr('id'));
}
}
});
} else if ($(".post").length > 0) { // the post
var path = window.location.pathname;
var count = countPV(path, rows);
count = (count == 0 ? 1 : count);
if (!hasInit) {
$('#pv').text(count);
} else {
var initCount = parseInt($('#pv').text());
if (count > initCount) {
countUp(initCount, count, 'pv');
}
}
}
}
$(function() {
// load pageview if this page has .pageviews
if ($('.pageviews').length > 0) {
var hasInit = false;
// Get data from daily cache.
$.getJSON('/assets/data/pageviews.json', function(data) {
displayPageviews(data.rows, hasInit);
hasInit = true;
});
$.getJSON('/assets/data/proxy.json', function(data) {
$.ajax({
url: data.proxyUrl,
dataType: 'jsonp',
timeout: 2000,
success: function(data) {
displayPageviews(data.rows, hasInit);
},
error: function(xhr, status, err) {
console.log("Failed to load pageviews from proxy server.");
xhr.abort();
return;
}
});
});
} // endif
});