laipower/wp-content/upgrade-temp-backup/plugins/w3-total-cache/Generic_WidgetStats.js

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2024-04-19 10:59:51 +00:00
/**
* W3TC stats widgets Google Charts driver.
*
* @file Google Charts driver for W3TC dashboard stats widgets.
* @author W3TC.
* @version 1.0
* @since X.X.X
*/
jQuery(document).ready(function($) {
google.charts.load('current', {packages: ['corechart', 'line']});
google.charts.setOnLoadCallback(load);
// Interval to refresh stats widgets every 60 seconds.
setInterval(function () {
load();
}, 60000);
// Refresh charts on resize.
jQuery(window).resize(function(){
load();
});
// Load method for stat charts. Fires on document ready, window resize, and on 60 second interval.
function load() {
$.getJSON(
ajaxurl + '?action=w3tc_ajax&_wpnonce=' + w3tc_nonce + '&w3tc_action=ustats_get',
function(data) {
if(! data.period.seconds){
$('#w3tc_page_cache').addClass('w3tc_none');
$('#w3tc_object_cache').addClass('w3tc_none');
$('#w3tc_database_cache').addClass('w3tc_none');
return;
}
processed_data = preprocess_data(data);
draw_charts(processed_data);
}
);
}
// Preprocesses statistics data for chart use.
/**
* @param {array} data Statistics data.
* @returns {array} Statistics data in format required for Google charts.
*/
function preprocess_data(data){
var processed_data = {
'page_cache':{'data':[],'color':'#6f9654'},
'object_cache':{'data':[],'color':'#e2431e'},
'database_cache':{'data':[],'color':'#43459d'}
};
for( var i=40; i<data.history.length; i++){
var entry = data.history[i];
var timestamp = dateFormat(new Date(parseInt(entry.timestamp_start) * 1000));
processed_data['page_cache']['data'].push([timestamp,Number(entry.php_requests_pagecache_hit)]);
processed_data['object_cache']['data'].push([timestamp,Number(entry.objectcache_get_hits)]);
processed_data['database_cache']['data'].push([timestamp,Number(entry.dbcache_calls_hits)]);
}
return processed_data;
}
// Draws the stats charts.
/**
* @param {array} data - Preprocessed statistics data.
*/
function draw_charts(data){
for ( var key in data ) {
var chart_data = google.visualization.arrayToDataTable(data[key]['data'],true);
var chart_options = {
series:{0:{color:data[key]['color']}},
legend:{position:'none'},
};
if(document.getElementById(key + '_chart')){
var chart = new google.charts.Line(document.getElementById(key + '_chart'));
chart.draw(chart_data, chart_options);
}
};
}
// Formats a timestamp into a human readable string.
/**
* @param {Object} d Timestamp.
* @returns {string} Human readable date/time string.
*/
function dateFormat(d){
return ("0" + d.getUTCHours()).slice(-2) + ":" + ("0" + d.getUTCMinutes()).slice(-2);
}
// Time since last refresh.
var seconds_timer_id;
// Interval for the stats refresh.
/**
* @param {Number} new_seconds_till_refresh Interval to trigger refresh.
*/
function setRefresh(new_seconds_till_refresh) {
clearTimeout(seconds_timer_id);
var seconds_till_refresh = new_seconds_till_refresh;
seconds_timer_id = setInterval(function () {
seconds_till_refresh--;
if (seconds_till_refresh <= 0) {
clearInterval(seconds_timer_id); // Change clearTimeout to clearInterval here
seconds_timer_id = null;
load();
setRefresh(new_seconds_till_refresh); // Restart the timer after calling load()
return;
}
}, 1000);
}
});