106 lines
3.0 KiB
JavaScript
106 lines
3.0 KiB
JavaScript
'use strict'
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/* global FileReader */
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/* global MouseEvent */
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function Source () {
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this.cache = {}
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this.install = () => {
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}
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this.start = () => {
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this.new()
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}
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this.new = () => {
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console.log('Source', 'New file..')
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this.cache = {}
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}
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this.open = (ext, callback) => {
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console.log('Source', 'Open file..')
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const input = document.createElement('input')
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input.type = 'file'
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input.onchange = (e) => {
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const file = e.target.files[0]
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if (file.name.indexOf('.' + ext) < 0) { console.warn('Source', `Skipped ${file.name}`); return }
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this.read(file, callback)
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}
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input.click()
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}
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this.load = (ext, callback) => {
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console.log('Source', 'Load files..')
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const input = document.createElement('input')
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input.type = 'file'
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input.setAttribute('multiple', 'multiple')
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input.onchange = (e) => {
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for (const file of e.target.files) {
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if (file.name.indexOf('.' + ext) < 0) { console.warn('Source', `Skipped ${file.name}`); return }
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this.read(file, this.store)
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}
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}
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input.click()
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}
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this.store = (file, content) => {
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console.info('Source', 'Stored ' + file.name)
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this.cache[file.name] = content
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}
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this.save = (name, content, type = 'text/plain', callback) => {
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this.saveAs(name, content, type, callback)
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}
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this.saveAs = (name, ext, content, type = 'text/plain', callback) => {
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console.log('Source', 'Save new file..')
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this.write(name, ext, content, type, callback)
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}
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this.revert = () => {
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}
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// I/O
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this.read = (file, callback) => {
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const reader = new FileReader()
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reader.onload = (event) => {
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const res = event.target.result
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if (callback) { callback(file, res) }
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}
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reader.readAsText(file, 'UTF-8')
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}
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this.write = (name, ext, content, type, settings = 'charset=utf-8') => {
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const link = document.createElement('a')
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link.setAttribute('download', `${name}-${timestamp()}.${ext}`)
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if (type === 'image/png' || type === 'image/jpeg') {
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link.setAttribute('href', content)
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} else {
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link.setAttribute('href', 'data:' + type + ';' + settings + ',' + encodeURIComponent(content))
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}
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link.dispatchEvent(new MouseEvent('click', { bubbles: true, cancelable: true, view: window }))
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}
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function timestamp (d = new Date(), e = new Date(d)) {
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return `${arvelie()}-${neralie()}`
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}
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function arvelie (date = new Date()) {
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const start = new Date(date.getFullYear(), 0, 0)
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const diff = (date - start) + ((start.getTimezoneOffset() - date.getTimezoneOffset()) * 60 * 1000)
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const doty = Math.floor(diff / 86400000) - 1
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const y = date.getFullYear().toString().substr(2, 2)
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const m = doty === 364 || doty === 365 ? '+' : String.fromCharCode(97 + Math.floor(doty / 14)).toUpperCase()
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const d = `${(doty === 365 ? 1 : doty === 366 ? 2 : (doty % 14)) + 1}`.padStart(2, '0')
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return `${y}${m}${d}`
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}
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function neralie (d = new Date(), e = new Date(d)) {
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const ms = e - d.setHours(0, 0, 0, 0)
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return (ms / 8640 / 10000).toFixed(6).substr(2, 6)
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}
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}
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