// 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 Windows, based on the information in the key /// data structure given to it. class WindowsCodeGenerator extends PlatformCodeGenerator { WindowsCodeGenerator(KeyData keyData) : super(keyData); /// This generates the map of Windows scan codes to physical keys. String get _windowsScanCodeMap { final StringBuffer windowsScanCodeMap = StringBuffer(); for (final Key entry in keyData.data) { if (entry.windowsScanCode != null) { windowsScanCodeMap.writeln(' { ${entry.windowsScanCode}, ${toHex(entry.usbHidCode)} }, // ${entry.constantName}'); } } return windowsScanCodeMap.toString().trimRight(); } /// This generates the map of Windows number pad key codes to logical keys. String get _windowsNumpadMap { final StringBuffer windowsNumPadMap = StringBuffer(); for (final Key entry in numpadKeyData) { if (entry.windowsScanCode != null) { windowsNumPadMap.writeln(' { ${toHex(entry.windowsScanCode)}, ${toHex(entry.flutterId, digits: 10)} }, // ${entry.constantName}'); } } return windowsNumPadMap.toString().trimRight(); } /// This generates the map of Android key codes to logical keys. String get _windowsKeyCodeMap { final StringBuffer windowsKeyCodeMap = StringBuffer(); for (final Key entry in keyData.data) { if (entry.windowsKeyCodes != null) { for (final int code in entry.windowsKeyCodes.cast<int>()) { windowsKeyCodeMap.writeln(' { $code, ${toHex(entry.flutterId, digits: 10)} }, // ${entry.constantName}'); } } } return windowsKeyCodeMap.toString().trimRight(); } @override String get templatePath => path.join(flutterRoot.path, 'dev', 'tools', 'gen_keycodes', 'data', 'keyboard_map_windows_cc.tmpl'); @override Map<String, String> mappings() { return <String, String>{ 'WINDOWS_SCAN_CODE_MAP': _windowsScanCodeMap, 'WINDOWS_NUMPAD_MAP': _windowsNumpadMap, 'WINDOWS_KEY_CODE_MAP': _windowsKeyCodeMap, }; } }