1 /* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.example.android.autofillkeyboard; 18 19 import android.view.KeyEvent; 20 import android.view.inputmethod.InputConnection; 21 22 /** Decodes key data and applies changes to {@link InputConnection}. */ 23 final class Decoder { 24 25 private final InputConnection mInputConnection; 26 Decoder(InputConnection inputConnection)27 Decoder(InputConnection inputConnection) { 28 this.mInputConnection = inputConnection; 29 } 30 decodeAndApply(String data)31 void decodeAndApply(String data) { 32 if ("DEL".equals(data)) { 33 mInputConnection.sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DEL)); 34 } else if ("ENT".equals(data)) { 35 mInputConnection.sendKeyEvent( 36 new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER)); 37 } else if ("SPA".equals(data)) { 38 mInputConnection.sendKeyEvent( 39 new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_SPACE)); 40 } else { 41 mInputConnection.commitText(data, 1); 42 } 43 } 44 isEmpty()45 boolean isEmpty() { 46 if (mInputConnection.getTextBeforeCursor(1, 0).length() == 0 47 && mInputConnection.getTextAfterCursor(1, 0).length() == 0) { 48 return true; 49 } 50 return false; 51 } 52 } 53