Navigation transitions: Plumb data from the outgoing renderer to the incoming renderer

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

 // Copyright 2012 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.
 
 package org.chromium.content.browser;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.app.SearchManager;
 import android.content.ClipboardManager;
@@ skipping 222 matching lines @@
      */
     public interface NavigationTransitionDelegate {
         /**
          * Called when the navigation is deferred immediately after the response started.
          *
          * @param enteringColor The background color of the entering document, as a String
          *                      representing a legal CSS color value. This is inserted into
          *                      the transition layer's markup after the entering stylesheets
          *                      have been applied.
          */
-        public void didDeferAfterResponseStarted(String enteringColor);
+        public void didDeferAfterResponseStarted(
+                String markup, String cssSelector, String enteringColor);
 
         /**
          * Called when a navigation transition has been detected, and we need to check
          * if it's supported.
          */
         public boolean willHandleDeferAfterResponseStarted();
 
         /**
          * Called when the navigation is deferred immediately after the response
          * started.
@@ skipping 1160 matching lines @@
                             computeVerticalScrollOffset(),
                             computeVerticalScrollExtent());
                     break;
                 default:
                     break;
             }
         }
     }
 
     /**
+     * Inserts the provided markup sandboxed into the frame.
+     */
+    public void setupTransitionView(String markup) {
+        if (mNativeContentViewCore == 0) return;
+        nativeSetupTransitionView(mNativeContentViewCore, markup);
+    }
+
+    /**
+     * Hides transition elements specified by the selector, and activates any
+     * exiting-transition stylesheets.
+     */
+    public void beginExitTransition(String cssSelector) {
+        if (mNativeContentViewCore == 0) return;
+        nativeBeginExitTransition(mNativeContentViewCore, cssSelector);
+    }
+
+    /**
      * Requests the renderer insert a link to the specified stylesheet in the
      * main frame's document.
      */
-    void addStyleSheetByURL(String url) {
+    public void addStyleSheetByURL(String url) {
         assert mWebContents != null;
         mWebContents.addStyleSheetByURL(url);
     }
 
     /** Callback interface for evaluateJavaScript(). */
     public interface JavaScriptCallback {
         void handleJavaScriptResult(String jsonResult);
     }
 
     /**
@@ skipping 1614 matching lines @@
         mSmartClipDataListener = listener;
     }
 
     public void setBackgroundOpaque(boolean opaque) {
         if (mNativeContentViewCore != 0) {
             nativeSetBackgroundOpaque(mNativeContentViewCore, opaque);
         }
     }
 
     @CalledByNative
-    private void didDeferAfterResponseStarted(String enteringColor) {
+    private void didDeferAfterResponseStarted(String markup, String cssSelector,
+            String enteringColor) {
         if (mNavigationTransitionDelegate != null ) {
-            mNavigationTransitionDelegate.didDeferAfterResponseStarted(enteringColor);
+            mNavigationTransitionDelegate.didDeferAfterResponseStarted(markup,
+                cssSelector, enteringColor);
         }
     }
 
     @CalledByNative
     public void didStartNavigationTransitionForFrame(long frameId) {
         if (mNavigationTransitionDelegate != null ) {
             mNavigationTransitionDelegate.didStartNavigationTransitionForFrame(frameId);
         }
     }
 
@@ skipping 218 matching lines @@
             long nativeContentViewCoreImpl);
 
     private native void nativeWasResized(long nativeContentViewCoreImpl);
 
     private native void nativeSetAccessibilityEnabled(
             long nativeContentViewCoreImpl, boolean enabled);
 
     private native void nativeExtractSmartClipData(long nativeContentViewCoreImpl,
             int x, int y, int w, int h);
     private native void nativeSetBackgroundOpaque(long nativeContentViewCoreImpl, boolean opaque);
+    private native void nativeSetupTransitionView(long nativeContentViewCoreImpl, String markup);
+    private native void nativeBeginExitTransition(long nativeContentViewCoreImpl,
+            String cssSelector);
 
     private native void nativeResumeResponseDeferredAtStart(
             long nativeContentViewCoreImpl);
     private native void nativeSetHasPendingNavigationTransitionForTesting(
             long nativeContentViewCoreImpl);
 }