Bug 699243 - Add method to GeckoAppShell to check for a11y and bridge it [r=blassey]

embedding/android/GeckoAppShell.java

@@ -63,6 +63,7 @@ import android.webkit.MimeTypeMap;
 import android.media.MediaScannerConnection;
 import android.media.MediaScannerConnection.MediaScannerConnectionClient;
 import android.provider.Settings;
+import android.view.accessibility.AccessibilityManager;
 
 import android.util.*;
 import android.net.Uri;
@@ -1316,6 +1317,13 @@ public class GeckoAppShell
             return true;
         }
     }
+
+    public static boolean getAccessibilityEnabled() {
+        AccessibilityManager accessibilityManager =
+            (AccessibilityManager) GeckoApp.mAppContext.getSystemService(Context.ACCESSIBILITY_SERVICE);
+        return accessibilityManager.isEnabled();
+    }
+
     public static void addPluginView(View view,
                                      double x, double y,
                                      double w, double h)

widget/src/android/AndroidBridge.cpp

@@ -150,6 +150,7 @@ AndroidBridge::Init(JNIEnv *jEnv,
     jFireAndWaitForTracerEvent = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "fireAndWaitForTracerEvent", "()V");   
     jCreateShortcut = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "createShortcut", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V");
     jGetShowPasswordSetting = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "getShowPasswordSetting", "()Z");
+    jGetAccessibilityEnabled = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "getAccessibilityEnabled", "()Z");
     jPostToJavaThread = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "postToJavaThread", "(Z)V");
     jInitCamera = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "initCamera", "(Ljava/lang/String;III)[I");
     jCloseCamera = (jmethodID) jEnv->GetStaticMethodID(jGeckoAppShellClass, "closeCamera", "()V");
@@ -763,6 +764,13 @@ AndroidBridge::GetShowPasswordSetting()
     return mJNIEnv->CallStaticBooleanMethod(mGeckoAppShellClass, jGetShowPasswordSetting);
 }
 
+bool
+AndroidBridge::GetAccessibilityEnabled()
+{
+    ALOG_BRIDGE("AndroidBridge::GetAccessibilityEnabled");
+    return mJNIEnv->CallStaticBooleanMethod(mGeckoAppShellClass, jGetAccessibilityEnabled);
+}
+
 void
 AndroidBridge::SetSurfaceView(jobject obj)
 {

widget/src/android/AndroidBridge.h

@@ -219,6 +219,8 @@ public:
 
     void FireAndWaitForTracerEvent();
 
+    bool GetAccessibilityEnabled();
+
     struct AutoLocalJNIFrame {
         AutoLocalJNIFrame(int nEntries = 128) : mEntries(nEntries) {
             // Make sure there is enough space to store a local ref to the
@@ -367,6 +369,7 @@ protected:
     jmethodID jFireAndWaitForTracerEvent;
     jmethodID jCreateShortcut;
     jmethodID jGetShowPasswordSetting;
+    jmethodID jGetAccessibilityEnabled;
     jmethodID jPostToJavaThread;
     jmethodID jInitCamera;
     jmethodID jCloseCamera;