| // Copyright 2014 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| import 'package:path/path.dart' as path; |
| |
| import 'base_code_gen.dart'; |
| import 'logical_key_data.dart'; |
| import 'physical_key_data.dart'; |
| import 'utils.dart'; |
| |
| |
| /// Generates the key mapping for Android, based on the information in the key |
| /// data structure given to it. |
| class AndroidCodeGenerator extends PlatformCodeGenerator { |
| AndroidCodeGenerator(PhysicalKeyData physicalData, LogicalKeyData logicalData) |
| : super(physicalData, logicalData); |
| |
| /// This generates the map of Android key codes to logical keys. |
| String get _androidKeyCodeMap { |
| final StringBuffer androidKeyCodeMap = StringBuffer(); |
| for (final LogicalKeyEntry entry in logicalData.entries) { |
| for (final int code in entry.androidValues) { |
| androidKeyCodeMap.writeln(' put(${toHex(code, digits: 10)}L, ${toHex(entry.value, digits: 10)}L); // ${entry.constantName}'); |
| } |
| } |
| return androidKeyCodeMap.toString().trimRight(); |
| } |
| |
| /// This generates the map of Android scan codes to physical keys. |
| String get _androidScanCodeMap { |
| final StringBuffer androidScanCodeMap = StringBuffer(); |
| for (final PhysicalKeyEntry entry in keyData.entries) { |
| if (entry.androidScanCodes != null) { |
| for (final int code in entry.androidScanCodes.cast<int>()) { |
| androidScanCodeMap.writeln(' put(${toHex(code, digits: 10)}L, ${toHex(entry.usbHidCode, digits: 10)}L); // ${entry.constantName}'); |
| } |
| } |
| } |
| return androidScanCodeMap.toString().trimRight(); |
| } |
| |
| @override |
| String get templatePath => path.join(dataRoot, 'android_keyboard_map_java.tmpl'); |
| |
| @override |
| String outputPath(String platform) => path.join(PlatformCodeGenerator.engineRoot, 'shell', 'platform', |
| path.join('android', 'io', 'flutter', 'embedding', 'android', 'KeyboardMap.java')); |
| |
| @override |
| Map<String, String> mappings() { |
| return <String, String>{ |
| 'ANDROID_SCAN_CODE_MAP': _androidScanCodeMap, |
| 'ANDROID_KEY_CODE_MAP': _androidKeyCodeMap, |
| }; |
| } |
| } |