#43: Add DesignKit package

* Begin implementing DesignKit package. * Use element-design-tokens repo. * Rename Fonts to align with Colours.
2026-11-02 12:07:55 +00:00 · 2022-05-26 13:31:38 +01:00
parent 8fec97217f
commit edf765b7cd
14 changed files with 812 additions and 1 deletions
@@ -0,0 +1,125 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import SwiftUI
+import DesignTokens
+import Introspect
+
+/// A bordered style of text input
+///
+/// As defined in:
+/// https://www.figma.com/file/X4XTH9iS2KGJ2wFKDqkyed/Compound?node-id=2039%3A26415
+public struct BorderedInputFieldStyle: TextFieldStyle {
+    @Environment(\.isEnabled) var isEnabled
+    @Environment(\.colorScheme) var colorScheme
+    
+    public var isEditing: Bool
+    public var isError: Bool
+    
+    private var borderColor: Color {
+        if isError {
+            return .element.alert
+        } else if isEditing {
+            return .element.accent
+        } else {
+            return .element.quinaryContent
+        }
+    }
+    
+    private var accentColor: Color {
+        if isError {
+            return .element.alert
+        }
+        return .element.accent
+    }
+    
+    private var textColor: Color {
+        if colorScheme == .dark {
+            return isEnabled ? .element.primaryContent : .element.tertiaryContent
+        } else {
+            return isEnabled ? .element.primaryContent : .element.quaternaryContent
+        }
+    }
+    
+    private var backgroundColor: Color {
+        if !isEnabled && colorScheme == .dark {
+            return .element.quinaryContent
+        }
+        return .element.background
+    }
+    
+    private var placeholderColor: Color {
+        return .element.tertiaryContent
+    }
+        
+    private var borderWidth: CGFloat {
+        return isEditing || isError ? 2.0 : 1.5
+    }
+    
+    public init(isEditing: Bool = false, isError: Bool = false) {
+        self.isEditing = isEditing
+        self.isError = isError
+    }
+    
+    public func _body(configuration: TextField<_Label>) -> some View {
+        let rect = RoundedRectangle(cornerRadius: 8.0)
+        return configuration
+            .font(.element.callout)
+            .foregroundColor(textColor)
+            .accentColor(accentColor)
+            .frame(height: 48.0)
+            .padding(.horizontal, 8.0)
+            .background(backgroundColor)
+            .clipShape(rect)
+            .overlay(rect.stroke(borderColor, lineWidth: borderWidth))
+            .introspectTextField { textField in
+                textField.returnKeyType = .done
+                textField.clearButtonMode = .whileEditing
+                textField.attributedPlaceholder = NSAttributedString(string: textField.placeholder ?? "",
+                                                                     attributes: [NSAttributedString.Key.foregroundColor: UIColor(placeholderColor)])
+            }
+    }
+}
+
+public struct BorderedInputFieldStyle_Previews: PreviewProvider {
+    public static var states: some View {
+        VStack {
+            TextField("Placeholder", text: .constant(""))
+                .textFieldStyle(BorderedInputFieldStyle())
+            TextField("Placeholder", text: .constant(""))
+                .textFieldStyle(BorderedInputFieldStyle(isEditing: true))
+            TextField("Placeholder", text: .constant("Web"))
+                .textFieldStyle(BorderedInputFieldStyle())
+            TextField("Placeholder", text: .constant("Web"))
+                .textFieldStyle(BorderedInputFieldStyle(isEditing: true))
+            TextField("Placeholder", text: .constant("Web"))
+                .textFieldStyle(BorderedInputFieldStyle())
+                .disabled(true)
+            TextField("Placeholder", text: .constant("Web"))
+                .textFieldStyle(BorderedInputFieldStyle(isEditing: true, isError: true))
+        }
+        .padding()
+    }
+    
+    public static var previews: some View {
+        Group {
+            states
+                .preferredColorScheme(.light)
+            states
+                .preferredColorScheme(.dark)
+        }
+    }
+}