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/* global WP_Smush */
/* global ajaxurl */
/* global wp_smush_msgs */
/* global smush_vars */
/**
* Helpers functions.
*
* @since 2.9.0 Moved from admin.js
*/
( function() {
'use strict';
WP_Smush.helpers = {
init: () => {},
/**
* Convert bytes to human readable form.
*
* @param {number} a Bytes
* @param {number} b Number of digits
* @return {*} Formatted Bytes
*/
formatBytes: ( a, b ) => {
const thresh = 1024,
units = [ 'KB', 'MB', 'GB', 'TB', 'PB' ];
if ( Math.abs( a ) < thresh ) {
return a + ' B';
}
let u = -1;
do {
a /= thresh;
++u;
} while ( Math.abs( a ) >= thresh && u < units.length - 1 );
return a.toFixed( b ) + ' ' + units[ u ];
},
/**
* Get size from a string.
*
* @param {string} formattedSize Formatter string
* @return {*} Formatted Bytes
*/
getSizeFromString: ( formattedSize ) => {
return formattedSize.replace( /[a-zA-Z]/g, '' ).trim();
},
/**
* Get type from formatted string.
*
* @param {string} formattedSize Formatted string
* @return {*} Formatted Bytes
*/
getFormatFromString: ( formattedSize ) => {
return formattedSize.replace( /[0-9.]/g, '' ).trim();
},
/**
* Stackoverflow: http://stackoverflow.com/questions/1726630/formatting-a-number-with-exactly-two-decimals-in-javascript
*
* @param {number} num
* @param {number} decimals
* @return {number} Number
*/
precise_round: ( num, decimals ) => {
const sign = num >= 0 ? 1 : -1;
// Keep the percentage below 100.
num = num > 100 ? 100 : num;
return ( Math.round( ( num * Math.pow( 10, decimals ) ) + ( sign * 0.001 ) ) / Math.pow( 10, decimals ) );
},
/**
* Reset settings.
*
* @since 3.2.0
*/
resetSettings: () => {
const xhr = new XMLHttpRequest();
xhr.open( 'POST', ajaxurl + '?action=reset_settings', true );
xhr.setRequestHeader( 'Content-type', 'application/x-www-form-urlencoded' );
xhr.onload = () => {
if ( 200 === xhr.status ) {
const res = JSON.parse( xhr.response );
if ( 'undefined' !== typeof res.success && res.success ) {
window.location.href = wp_smush_msgs.smush_url;
}
} else {
window.console.log( 'Request failed. Returned status of ' + xhr.status );
}
};
xhr.send( '_ajax_nonce=' + smush_vars.nonce.get_smush_status );
},
};
WP_Smush.helpers.init();
}() );