progressevent.js•1.65 kB
'use strict'
const { webidl } = require('../fetch/webidl')
const kState = Symbol('ProgressEvent state')
/**
* @see https://xhr.spec.whatwg.org/#progressevent
*/
class ProgressEvent extends Event {
constructor (type, eventInitDict = {}) {
type = webidl.converters.DOMString(type, 'ProgressEvent constructor', 'type')
eventInitDict = webidl.converters.ProgressEventInit(eventInitDict ?? {})
super(type, eventInitDict)
this[kState] = {
lengthComputable: eventInitDict.lengthComputable,
loaded: eventInitDict.loaded,
total: eventInitDict.total
}
}
get lengthComputable () {
webidl.brandCheck(this, ProgressEvent)
return this[kState].lengthComputable
}
get loaded () {
webidl.brandCheck(this, ProgressEvent)
return this[kState].loaded
}
get total () {
webidl.brandCheck(this, ProgressEvent)
return this[kState].total
}
}
webidl.converters.ProgressEventInit = webidl.dictionaryConverter([
{
key: 'lengthComputable',
converter: webidl.converters.boolean,
defaultValue: () => false
},
{
key: 'loaded',
converter: webidl.converters['unsigned long long'],
defaultValue: () => 0
},
{
key: 'total',
converter: webidl.converters['unsigned long long'],
defaultValue: () => 0
},
{
key: 'bubbles',
converter: webidl.converters.boolean,
defaultValue: () => false
},
{
key: 'cancelable',
converter: webidl.converters.boolean,
defaultValue: () => false
},
{
key: 'composed',
converter: webidl.converters.boolean,
defaultValue: () => false
}
])
module.exports = {
ProgressEvent
}