// 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 'key_data.dart'; import 'utils.dart'; /// Generates the key mapping of Android, based on the information in the key /// data structure given to it. class AndroidCodeGenerator extends PlatformCodeGenerator { AndroidCodeGenerator(KeyData keyData) : super(keyData); /// This generates the map of Android key codes to logical keys. String get _androidKeyCodeMap { final StringBuffer androidKeyCodeMap = StringBuffer(); for (final Key entry in keyData.data) { if (entry.androidKeyCodes != null) { for (final int code in entry.androidKeyCodes.cast<int>()) { androidKeyCodeMap.writeln(' { $code, ${toHex(entry.flutterId, digits: 10)} }, // ${entry.constantName}'); } } } return androidKeyCodeMap.toString().trimRight(); } /// This generates the map of Android number pad key codes to logical keys. String get _androidNumpadMap { final StringBuffer androidKeyCodeMap = StringBuffer(); for (final Key entry in numpadKeyData) { if (entry.androidKeyCodes != null) { for (final int code in entry.androidKeyCodes.cast<int>()) { androidKeyCodeMap.writeln(' { $code, ${toHex(entry.flutterId, digits: 10)} }, // ${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 Key entry in keyData.data) { if (entry.androidScanCodes != null) { for (final int code in entry.androidScanCodes.cast<int>()) { androidScanCodeMap.writeln(' { $code, ${toHex(entry.usbHidCode)} }, // ${entry.constantName}'); } } } return androidScanCodeMap.toString().trimRight(); } @override String get templatePath => path.join(flutterRoot.path, 'dev', 'tools', 'gen_keycodes', 'data', 'keyboard_map_android_cc.tmpl'); @override Map<String, String> mappings() { return <String, String>{ 'ANDROID_SCAN_CODE_MAP': _androidScanCodeMap, 'ANDROID_KEY_CODE_MAP': _androidKeyCodeMap, 'ANDROID_NUMPAD_MAP': _androidNumpadMap, }; } }