1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 package org.chromium.content_public.browser; 6 7 /** 8 * An interface that allows the embedder to be notified of navigation transition 9 * related events and respond to them. 10 */ 11 public interface NavigationTransitionDelegate { 12 /** 13 * Called when the navigation is deferred immediately after the response started. 14 * @param markup The markup coming as part of response. 15 * @param cssSelector The CSS selectors, which is to be applied to transition layer's 16 * makrup. 17 * @param enteringColor The background color of the entering document, as a String 18 * representing a legal CSS color value. This is inserted into 19 * the transition layer's markup after the entering stylesheets 20 * have been applied. 21 */ 22 public void didDeferAfterResponseStarted( 23 String markup, String cssSelector, String enteringColor); 24 25 /** 26 * Called when a navigation transition has been detected, and we need to check 27 * if it's supported. 28 */ 29 public boolean willHandleDeferAfterResponseStarted(); 30 31 /** 32 * Called when the navigation is deferred immediately after the response 33 * started. 34 */ 35 public void addEnteringStylesheetToTransition(String stylesheet); 36 37 /** 38 * Notifies that a navigation transition is started for a given frame. 39 * @param frameId A positive, non-zero integer identifying the navigating frame. 40 */ 41 public void didStartNavigationTransitionForFrame(long frameId); 42 } 43
