onCreated()
event of the
downloads
API fires when a download begins, i.e. when
downloads.download()
is successfully invoked.
The listener is passed the
downloads.DownloadItem
object in question as a parameter.
browser.downloads.onCreated.addListener(listener)
浏览器
.
downloads
.
onCreated
.
removeListener
(
listener
)
浏览器
.
downloads
.
onCreated
.
hasListener
(
listener
)
Events have three functions:
addListener(callback)
Adds a listener to this event.
removeListener(listener)
Stop listening to this event. The
listener
argument is the listener to remove.
hasListener(listener)
Check whether a given
listener
is registered for this event. Returns
true
if it is listening,
false
否则。
function
A callback function that will be called when this event occurs. This function will be passed the following arguments:
downloadItem
downloads.DownloadItem
object in question.
BCD tables only load in the browser
Log the URL of items as they are downloaded:
function handleCreated(item) {
console.log(item.url);
}
browser.downloads.onCreated.addListener(handleCreated);
注意：
This API is based on Chromium's
chrome.downloads
API。
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
最后修改： , 由 MDN 贡献者