Environment+EdgeInsets.swift (2004B)
1 // MIT License 2 // Copyright 2021 alexis https://github.com/alexis-ag/swiftui_classic-tabview_show-hide 3 // 4 // Permission is hereby granted, free of charge, to any person obtaining a copy of this software 5 // and associated documentation files (the "Software"), to deal in the Software without restriction, 6 // including without limitation the rights to use, copy, modify, merge, publish, distribute, 7 // sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 8 // furnished to do so, subject to the following conditions: 9 // 10 // The above copyright notice and this permission notice shall be included in all copies or 11 // substantial portions of the Software. 12 // 13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 14 // BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 15 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 16 // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 17 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 18 // 19 import SwiftUI 20 21 struct SafeAreaEdgeInsetsKey: EnvironmentKey { 22 static var defaultValue: EdgeInsets { 23 // TODO: see UIScreen+screenSize for keyWindow 24 let keyWindows = UIApplication.shared.windows.filter { $0.isKeyWindow }.first ?? 25 UIApplication.shared.windows[0] 26 27 return keyWindows.safeAreaEdgeInsets 28 } 29 } 30 31 extension EnvironmentValues { 32 ///Should only be used once UIApplication is instantiated by the system 33 var safeAreaEdgeInsets: EdgeInsets { 34 self[SafeAreaEdgeInsetsKey.self] 35 } 36 } 37 38 extension UIEdgeInsets { 39 var insets: EdgeInsets { // TODO: right-to-left!!! 40 EdgeInsets(top: top, leading: left, bottom: bottom, trailing: right) 41 } 42 } 43 44 extension UIWindow { 45 var safeAreaEdgeInsets: EdgeInsets { 46 safeAreaInsets.insets 47 } 48 }