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78 lines
1.6 KiB
JavaScript

import Vue from 'vue'
// usage: {{ file.size | prettyBytes }}
Vue.filter('prettyBytes', function (num) {
// jacked from: https://github.com/sindresorhus/pretty-bytes
if (typeof num !== 'number' || isNaN(num)) {
throw new TypeError('Expected a number')
}
var exponent
var unit
var neg = num < 0
var units = ['B', 'kB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
if (neg) {
num = -num
}
if (num < 1) {
return (neg ? '-' : '') + num + ' B'
}
exponent = Math.min(Math.floor(Math.log(num) / Math.log(1000)), units.length - 1)
num = (num / Math.pow(1000, exponent)).toFixed(2) * 1
unit = units[exponent]
return (neg ? '-' : '') + num + ' ' + unit
})
/**
* Vue filter to round the decimal to the given place.
* http://jsfiddle.net/bryan_k/3ova17y9/
*
* @param {String} value The value string.
* @param {Number} decimals The number of decimal places.
*/
Vue.filter('round', function (value, decimals) {
if (!value) {
value = 0
}
if (!decimals) {
decimals = 0
}
value = Math.round(value * Math.pow(10, decimals)) / Math.pow(10, decimals)
return value
})
/**
* usage: {{ wifi.rssi | wifiIcon(wifi.secure) }}
* @param {Number} rssi rssi value
* @param {Boolean} secure Is wifi protected
*/
Vue.filter('wifiIcon', function (rssi, secure) {
let icon = '$signalWifi'
// strength
if (rssi >= -67) {
icon += 4
} else if (rssi >= -70) {
icon += 3
} else if (rssi >= -80) {
icon += 2
} else if (rssi >= -90) {
icon += 1
} else {
icon += 0
}
// secure
if (secure !== 0 && rssi >= -90) {
icon += 'Lock'
}
return icon
})