Merge "Editor: do not blink when invisible to user"

     * @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.isVisibleToUser()) return false;

        final int start = mTextView.getSelectionStart();

        if (start < 0) return false;