From c98b34608b23bf9208520b969d20518253881743 Mon Sep 17 00:00:00 2001
From: alanv <alanv@google.com>
Date: Mon, 27 Aug 2012 15:21:09 -0700
Subject: [PATCH] Reload page when A11y is on and the JavaScript state changes.

Bug: 6910403
Change-Id: I85af7d2019a02c1a6cc17b0c4930276b7fb69e33
---
 .../android/webkit/AccessibilityInjector.java  | 18 ++++++++++++++++++
 .../android/webkit/WebSettingsClassic.java     |  1 +
 core/java/android/webkit/WebViewClassic.java   |  6 ++++++
 3 files changed, 25 insertions(+)

diff --git a/core/java/android/webkit/AccessibilityInjector.java b/core/java/android/webkit/AccessibilityInjector.java
index 7dfb5bb102e2a..fd73fdaa03e2d 100644
--- a/core/java/android/webkit/AccessibilityInjector.java
+++ b/core/java/android/webkit/AccessibilityInjector.java
@@ -279,6 +279,7 @@ class AccessibilityInjector {
         }
 
         if (!shouldInjectJavaScript(url)) {
+            mAccessibilityScriptInjected = false;
             toggleFallbackAccessibilityInjector(true);
             return;
         }
@@ -291,6 +292,23 @@ class AccessibilityInjector {
         mAccessibilityScriptInjected = true;
     }
 
+    /**
+     * Adjusts the accessibility injection state to reflect changes in the
+     * JavaScript enabled state.
+     *
+     * @param enabled Whether JavaScript is enabled.
+     */
+    public void updateJavaScriptEnabled(boolean enabled) {
+        if (enabled) {
+            addAccessibilityApisIfNecessary();
+        } else {
+            removeAccessibilityApisIfNecessary();
+        }
+
+        // We have to reload the page after adding or removing APIs.
+        mWebView.reload();
+    }
+
     /**
      * Toggles the non-JavaScript method for handling accessibility.
      *
diff --git a/core/java/android/webkit/WebSettingsClassic.java b/core/java/android/webkit/WebSettingsClassic.java
index d1f8b4bc04481..1bbe7bbad073e 100644
--- a/core/java/android/webkit/WebSettingsClassic.java
+++ b/core/java/android/webkit/WebSettingsClassic.java
@@ -1122,6 +1122,7 @@ public class WebSettingsClassic extends WebSettings {
         if (mJavaScriptEnabled != flag) {
             mJavaScriptEnabled = flag;
             postSync();
+            mWebView.updateJavaScriptEnabled(flag);
         }
     }
 
diff --git a/core/java/android/webkit/WebViewClassic.java b/core/java/android/webkit/WebViewClassic.java
index 9df485282f42c..d6be3021df1f0 100644
--- a/core/java/android/webkit/WebViewClassic.java
+++ b/core/java/android/webkit/WebViewClassic.java
@@ -1633,6 +1633,12 @@ public final class WebViewClassic implements WebViewProvider, WebViewProvider.Sc
         mZoomManager.updateMultiTouchSupport(context);
     }
 
+    void updateJavaScriptEnabled(boolean enabled) {
+        if (isAccessibilityInjectionEnabled()) {
+            getAccessibilityInjector().updateJavaScriptEnabled(enabled);
+        }
+    }
+
     private void init() {
         OnTrimMemoryListener.init(mContext);
         mWebView.setWillNotDraw(false);