web_js.go (1172B)
1 // Copyright 2017 The Ebiten Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package web 16 17 import ( 18 "strings" 19 "syscall/js" 20 ) 21 22 func IsBrowser() bool { 23 return true 24 } 25 26 var ( 27 isIOSSafari bool 28 isAndroidChrome bool 29 ) 30 31 func init() { 32 nav := js.Global().Get("navigator") 33 if !nav.Truthy() { 34 return 35 } 36 ua := nav.Get("userAgent") 37 if !ua.Truthy() { 38 return 39 } 40 userAgent := ua.String() 41 isIOSSafari = strings.Contains(userAgent, "iPhone") || strings.Contains(userAgent, "iPad") 42 isAndroidChrome = strings.Contains(userAgent, "Android") && strings.Contains(userAgent, "Chrome") 43 } 44 45 func IsMobileBrowser() bool { 46 return isIOSSafari || isAndroidChrome 47 }