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import Url from 'licia/Url'
import contain from 'licia/contain'
import escapeJsStr from 'licia/escapeJsStr'
import isUndef from 'licia/isUndef'
import last from 'licia/last'
import map from 'licia/map'
import memStorage from 'licia/memStorage'
import toNum from 'licia/toNum'
import trim from 'licia/trim'
import html from 'licia/html'
// https://stackoverflow.com/questions/46318395/detecting-mobile-device-notch
export function hasSafeArea() {
let proceed = false
const div = document.createElement('div')
if (CSS.supports('padding-bottom: env(safe-area-inset-bottom)')) {
div.style.paddingBottom = 'env(safe-area-inset-bottom)'
proceed = true
} else if (CSS.supports('padding-bottom: constant(safe-area-inset-bottom)')) {
div.style.paddingBottom = 'constant(safe-area-inset-bottom)'
proceed = true
}
if (proceed) {
document.body.appendChild(div)
const calculatedPadding = parseInt(
window.getComputedStyle(div).paddingBottom
)
document.body.removeChild(div)
if (calculatedPadding > 0) {
return true
}
}
return false
}
export function escapeJsonStr(str) {
return escapeJsStr(str).replace(/\\'/g, "'").replace(/\t/g, '\\t')
}
export function safeStorage(type, memReplacement) {
if (isUndef(memReplacement)) memReplacement = true
let ret
switch (type) {
case 'local':
ret = window.localStorage
break
case 'session':
ret = window.sessionStorage
break
}
try {
// Safari private browsing
const x = 'test-localStorage-' + Date.now()
ret.setItem(x, x)
const y = ret.getItem(x)
ret.removeItem(x)
if (y !== x) throw new Error()
} catch {
if (memReplacement) return memStorage
return
}
return ret
}
export function getFileName(url) {
let ret = last(url.split('/'))
if (ret === '') {
url = new Url(url)
ret = url.hostname
}
return ret
}
export function pxToNum(str) {
return toNum(str.replace('px', ''))
}
export function isErudaEl(el) {
while (el) {
if (el.id === 'eruda') return true
el = el.parentNode
}
return false
}
export function isChobitsuEl(el) {
while (el) {
let className = ''
if (el.getAttribute) {
className = el.getAttribute('class') || ''
}
if (contain(className, '__chobitsu-hide__')) {
return true
}
el = el.parentNode
}
return false
}
export function classPrefix(str) {
if (/<[^>]*>/g.test(str)) {
try {
const tree = html.parse(str)
traverseTree(tree, (node) => {
if (node.attrs && node.attrs.class) {
node.attrs.class = processClass(node.attrs.class)
}
})
return html.stringify(tree)
} catch {
return processClass(str)
}
}
return processClass(str)
}
function traverseTree(tree, handler) {
for (let i = 0, len = tree.length; i < len; i++) {
const node = tree[i]
handler(node)
if (node.content) {
traverseTree(node.content, handler)
}
}
}
function processClass(str) {
const prefix = 'eruda-'
return map(trim(str).split(/\s+/), (singleClass) => {
if (contain(singleClass, prefix)) {
return singleClass
}
return singleClass.replace(/[\w-]+/, (match) => `${prefix}${match}`)
}).join(' ')
}
export function eventClient(type, e) {
const name = type === 'x' ? 'clientX' : 'clientY'
if (e[name]) {
return e[name]
}
if (e.changedTouches) {
return e.changedTouches[0][name]
}
return 0
}
export function eventPage(type, e) {
const name = type === 'x' ? 'pageX' : 'pageY'
if (e[name]) {
return e[name]
}
if (e.changedTouches) {
return e.changedTouches[0][name]
}
return 0
}
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