history.onTitleChanged
Fired when the title of a page visited by the user is recorded. To listen for visits to a page you use history.onVisited. However, the 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.
Syntax
browser.history.onTitleChanged.addListener(listener)
browser.history.onTitleChanged.removeListener(listener)
browser.history.onTitleChanged.hasListener(listener)
Events have three functions:
addListener(listener)-
Adds a listener to this event.
removeListener(listener)-
Stop listening to this event. The
listenerargument is the listener to remove. hasListener(listener)-
Check whether
listeneris registered for this event. Returnstrueif it is listening,falseotherwise.
addListener syntax
Parameters
listener-
The function called when this event occurs. The function is passed an object with these properties:
id-
String. The unique identifier for thehistory.HistoryItemassociated with this visit. url-
String. URL of the page visited. title-
String. Title of the page visited.
Examples
Listen for title change events, and log the ID, URL, and title of the visited pages.
function handleTitleChanged(item) {
console.log(item.id);
console.log(item.title);
console.log(item.url);
}
browser.history.onTitleChanged.addListener(handleTitleChanged);
Browser compatibility
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Note:
This API is based on Chromium's chrome.history API. This documentation is derived from history.json in the Chromium code.