Leaf Petersen
745f112ef6
Opt an initial batch of files under samples, samples-dev, utils, and runtime/tools/dartfuzz out of null safety in preparation for switching the flag on by default. Change-Id: Icdfd52a5a969e678a7205903332f73fe3841c223 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/166960 Reviewed-by: Daco Harkes <dacoharkes@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
86 lines
2.5 KiB
Dart
86 lines
2.5 KiB
Dart
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.9
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part of base;
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// TODO(jacobr): cache these results.
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// TODO(jacobr): figure out how to test this.
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/**
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* Utils for device detection.
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*/
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class Device {
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/**
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* The regular expression for detecting an iPhone or iPod.
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*/
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static final _IPHONE_REGEX = new RegExp('iPhone|iPod');
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/**
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* The regular expression for detecting an iPhone or iPod or iPad.
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*/
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static final _MOBILE_SAFARI_REGEX = new RegExp('iPhone|iPod|iPad');
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/**
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* The regular expression for detecting an iPhone or iPod or iPad simulator.
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*/
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static final _APPLE_SIM_REGEX = new RegExp('iP.*Simulator');
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/**
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* Gets the browser's user agent. Using this function allows tests to inject
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* the user agent.
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* Returns the user agent.
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*/
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static String get userAgent => window.navigator.userAgent;
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/**
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* Determines if the current device is an iPhone or iPod.
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* Returns true if the current device is an iPhone or iPod.
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*/
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static bool get isIPhone => _IPHONE_REGEX.hasMatch(userAgent);
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/**
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* Determines if the current device is an iPad.
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* Returns true if the current device is an iPad.
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*/
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static bool get isIPad => userAgent.contains("iPad", 0);
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/**
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* Determines if the current device is running Firefox.
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*/
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static bool get isFirefox => userAgent.contains("Firefox", 0);
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/**
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* Determines if the current device is an iPhone or iPod or iPad.
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* Returns true if the current device is an iPhone or iPod or iPad.
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*/
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static bool get isMobileSafari => _MOBILE_SAFARI_REGEX.hasMatch(userAgent);
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/**
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* Determines if the current device is the iP* Simulator.
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* Returns true if the current device is an iP* Simulator.
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*/
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static bool get isAppleSimulator => _APPLE_SIM_REGEX.hasMatch(userAgent);
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/**
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* Determines if the current device is an Android.
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* Returns true if the current device is an Android.
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*/
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static bool get isAndroid => userAgent.contains("Android", 0);
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/**
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* Determines if the current device is WebOS WebKit.
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* Returns true if the current device is WebOS WebKit.
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*/
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static bool get isWebOs => userAgent.contains("webOS", 0);
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static bool _supportsTouch;
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static bool get supportsTouch {
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if (_supportsTouch == null) {
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_supportsTouch = isMobileSafari || isAndroid;
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}
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return _supportsTouch;
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}
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}
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