// 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 }; } }