android-components / mozilla.components.concept.engine.history / HistoryTrackingDelegate

# HistoryTrackingDelegate

`interface HistoryTrackingDelegate` (source)

An interface used for providing history information to an engine (e.g. for link highlighting), and receiving history updates from the engine (visits to URLs, title changes).

Even though this interface is defined at the "concept" layer, it's get* methods are tailored to two types of engines which we support (system's WebView and GeckoView).

### Functions

getVisited | `abstract fun getVisited(uris: List<String>, callback: (List<Boolean>) -> Unit, privateMode: Boolean): Unit` An engine needs to know "visited" (true/false) status for provided URIs. `abstract fun getVisited(callback: (List<String>) -> Unit, privateMode: Boolean): Unit` An engine needs to know a list of all visited URIs.
onTitleChanged | `abstract fun onTitleChanged(uri: String, title: String, privateMode: Boolean): Unit` Title changed for a given URI.
onVisited | `abstract fun onVisited(uri: String, isReload: Boolean? = false, privateMode: Boolean): Unit` A URI visit happened that an engine considers worthy of being recorded in browser's history.