| // Copyright 2018 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| library chromium.web; |
| |
| // Interface supplied by the embedder for receiving notifications about |
| // changes in a Frame. |
| interface FrameObserver { |
| // Called when user-visible navigation state has changed for the Frame. |
| 1: OnNavigationStateChanged(NavigationStateChangeDetails change) -> (); |
| }; |
| |
| // Indicates which properties of the NavigationController's visible content |
| // that have changed since the last OnNavigationStateChanged() event. |
| struct NavigationStateChangeDetails { |
| bool url_changed; |
| bool title_changed; |
| |
| // The Frame's visible navigation state, captured at the time the event was |
| // fired. |
| NavigationEntry entry; |
| }; |
