| // 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 iOS, based on the information in the key |
| /// data structure given to it. |
| class IosCodeGenerator extends PlatformCodeGenerator { |
| IosCodeGenerator(KeyData keyData) : super(keyData); |
| |
| /// This generates the map of iOS key codes to physical keys. |
| String get _iosScanCodeMap { |
| final StringBuffer iosScanCodeMap = StringBuffer(); |
| for (final Key entry in keyData.data) { |
| if (entry.iosScanCode != null) { |
| iosScanCodeMap.writeln(' { ${toHex(entry.iosScanCode)}, ${toHex(entry.usbHidCode)} }, // ${entry.constantName}'); |
| } |
| } |
| return iosScanCodeMap.toString().trimRight(); |
| } |
| |
| /// This generates the map of iOS number pad key codes to logical keys. |
| String get _iosNumpadMap { |
| final StringBuffer iosNumPadMap = StringBuffer(); |
| for (final Key entry in numpadKeyData) { |
| if (entry.iosScanCode != null) { |
| iosNumPadMap.writeln(' { ${toHex(entry.iosScanCode)}, ${toHex(entry.flutterId, digits: 10)} }, // ${entry.constantName}'); |
| } |
| } |
| return iosNumPadMap.toString().trimRight(); |
| } |
| |
| @override |
| String get templatePath => path.join(flutterRoot.path, 'dev', 'tools', 'gen_keycodes', 'data', 'keyboard_map_ios_cc.tmpl'); |
| |
| @override |
| String outputPath(String platform) => path.joinAll(<String>[flutterRoot.path, '..', 'engine', 'src', 'flutter', 'shell', 'platform', 'darwin', platform, 'keycodes', 'keyboard_map_$platform.h']); |
| |
| @override |
| Map<String, String> mappings() { |
| // There is no iOS keycode map since iOS uses keycode to represent a physical key. |
| // The LogicalKeyboardKey is generated by raw_keyboard_macos.dart from the unmodified characters |
| // from NSEvent. |
| return <String, String>{ |
| 'IOS_SCAN_CODE_MAP': _iosScanCodeMap, |
| 'IOS_NUMPAD_MAP': _iosNumpadMap |
| }; |
| } |
| } |