Merge changes from topic "cursor-bg-blink-cp" into tm-qpr-dev

* changes:
  Add Ability to Check if Cursor is Blinking
  Stop cursor from blinking when not visible

core/java/android/widget/Editor.java

@@ -709,7 +709,7 @@ public class Editor {
         }
 
         getPositionListener().addSubscriber(mCursorAnchorInfoNotifier, true);
-        resumeBlink();
+        makeBlink();
     }
 
     void onDetachedFromWindow() {
@@ -1685,17 +1685,12 @@ public class Editor {
 
     void onWindowFocusChanged(boolean hasWindowFocus) {
         if (hasWindowFocus) {
-            if (mBlink != null) {
-                mBlink.uncancel();
-                makeBlink();
-            }
+            resumeBlink();
             if (mTextView.hasSelection() && !extractedTextModeWillBeStarted()) {
                 refreshTextActionMode();
             }
         } else {
-            if (mBlink != null) {
-                mBlink.cancel();
-            }
+            suspendBlink();
             if (mInputContentType != null) {
                 mInputContentType.enterDown = false;
             }
@@ -2851,7 +2846,8 @@ public class Editor {
      * @return True when the TextView isFocused and has a valid zero-length selection (cursor).
      */
     private boolean shouldBlink() {
-        if (!isCursorVisible() || !mTextView.isFocused()) return false;
+        if (!isCursorVisible() || !mTextView.isFocused()
+                || mTextView.getWindowVisibility() != mTextView.VISIBLE) return false;
 
         final int start = mTextView.getSelectionStart();
         if (start < 0) return false;
@@ -2873,6 +2869,17 @@ public class Editor {
         }
     }
 
+    /**
+     *
+     * @return whether the Blink runnable is blinking or not, if null return false.
+     * @hide
+     */
+    @VisibleForTesting
+    public boolean isBlinking() {
+        if (mBlink == null) return false;
+        return !mBlink.mCancelled;
+    }
+
     private class Blink implements Runnable {
         private boolean mCancelled;