Send delete key events when pressed at beginning of field.

            return true;

        }

        Spannable text = (Spannable) getText();

        int oldLength = text.length();

        int oldStart = Selection.getSelectionStart(text);

        int oldEnd = Selection.getSelectionEnd(text);

        // Normally the delete key's dom events are sent via onTextChanged.

        // However, if the length is zero, the text did not change, so we

        // go ahead and pass the key down immediately.

        if (KeyEvent.KEYCODE_DEL == keyCode && 0 == oldLength) {

        // However, if the cursor is at the beginning of the field, which

        // includes the case where it has zero length, then the text is not

        // changed, so send the events immediately.

        if (KeyEvent.KEYCODE_DEL == keyCode && oldStart == 0 && oldEnd == 0) {

            sendDomEvent(event);

            return true;

        }

        if (getLayout() == null) {

            measure(mWidthSpec, mHeightSpec);

        }

        int oldStart = Selection.getSelectionStart(text);

        int oldEnd = Selection.getSelectionEnd(text);

        int oldLength = text.length();

        boolean maxedOut = mMaxLength != -1 && oldLength == mMaxLength;

        // If we are at max length, and there is a selection rather than a

        // cursor, we need to store the text to compare later, since the key