history.onVisited
。不管怎样，
history.HistoryItem
that this event passes to its listener does not include the page title, because the page title is typically not known at the time
history.onVisited
is sent.Instead, the stored
history.HistoryItem
is updated with the page title after the page has loaded, once the title is known. The history.onTitleChanged event is fired at that time. So if you need to know the titles of pages as they are visited, listen for
history.onTitleChanged
.
browser.history.onTitleChanged.addListener(listener)
浏览器
.
history
.
onTitleChanged
.
removeListener
(
listener
)
浏览器
.
history
.
onTitleChanged
.
hasListener
(
listener
)
Events have three functions:
addListener(listener)
Adds a listener to this event.
removeListener(listener)
Stop listening to this event. The
listener
argument is the listener to remove.
hasListener(listener)
校验是否
listener
is registered for this event. Returns
true
if it is listening,
false
否则。
callback
Function that will be called when this event occurs. The function will be passed an object with the following properties:
url
字符串
. URL of the page visited.
title
字符串
. Title of the page visited.
BCD tables only load in the browser
Listen for title change events, and log the URL and title of the visited pages.
function handleTitleChanged(item) {
console.log(item.title);
console.log(item.url);
}
browser.history.onTitleChanged.addListener(handleTitleChanged);
注意：
This API is based on Chromium's
chrome.history
API. This documentation is derived from
history.json
in the Chromium code.
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