Make the URL for the JavaScript based screen-reader used by WebView configurable.

The URl from which to inject a screen-reader for WebView accessiblity support should be
configurable because: 1) The accessibility engineering team should be able to point
devices to a staging build of the screen-reader; 2) We would like to be able to change
this URL via the Google services mechanism.

bug:5718543

Change-Id: I3d4d343f1c93e0e0173f04b2912949fe8a3566b9

2 files changed, 25 insertions, 1 deletions

diff --git a/packages/SettingsProvider/res/values/defaults.xml b/packages/SettingsProvider/res/values/defaults.xml
index 1ebed1f..4ea2c31 100644
--- a/packages/SettingsProvider/res/values/defaults.xml
+++ b/packages/SettingsProvider/res/values/defaults.xml
@@ -115,6 +115,11 @@
             0x200000038=0x03000701:0x03010701:0x03020701;
     </string>
 
+    <!-- Default for Settings.Secure.ACCESSIBILITY_SCRIPT_INJECTION_URL -->
+    <string name="def_accessibility_screen_reader_url" translatable="false">
+        https://ssl.gstatic.com/accessibility/javascript/android/AndroidScriptChooser.user.js
+    </string>
+
     <!-- Default for Settings.Secure.TOUCH_EXPLORATION_ENABLED -->
     <bool name="def_touch_exploration_enabled">false</bool>
 
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java b/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
index 1fbe08d..a6a3303 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java
@@ -63,7 +63,7 @@ public class DatabaseHelper extends SQLiteOpenHelper {
     // database gets upgraded properly. At a minimum, please confirm that 'upgradeVersion'
     // is properly propagated through your change.  Not doing so will result in a loss of user
     // settings.
-    private static final int DATABASE_VERSION = 73;
+    private static final int DATABASE_VERSION = 74;
 
     private Context mContext;
 
@@ -986,6 +986,22 @@ public class DatabaseHelper extends SQLiteOpenHelper {
             upgradeVersion = 73;
         }
 
+        if (upgradeVersion == 73) {
+            // URL from which WebView loads a JavaScript based screen-reader.
+            db.beginTransaction();
+            SQLiteStatement stmt = null;
+            try {
+                stmt = db.compileStatement("INSERT INTO secure(name,value) VALUES(?,?);");
+                loadStringSetting(stmt, Settings.Secure.ACCESSIBILITY_SCREEN_READER_URL,
+                        R.string.def_accessibility_screen_reader_url);
+                db.setTransactionSuccessful();
+            } finally {
+                db.endTransaction();
+                if (stmt != null) stmt.close();
+            }
+            upgradeVersion = 74;
+        }
+
         // *** Remember to update DATABASE_VERSION above!
 
         if (upgradeVersion != currentVersion) {
@@ -1526,6 +1542,9 @@ public class DatabaseHelper extends SQLiteOpenHelper {
 
             loadBooleanSetting(stmt, Settings.Secure.ACCESSIBILITY_SPEAK_PASSWORD,
                     R.bool.def_accessibility_speak_password);
+
+            loadStringSetting(stmt, Settings.Secure.ACCESSIBILITY_SCREEN_READER_URL,
+                    R.string.def_accessibility_screen_reader_url);
         } finally {
             if (stmt != null) stmt.close();
         }