#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 +1,83 @@
+// 
+// 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
+
+public struct PrimaryActionButtonStyle: ButtonStyle {
+    @Environment(\.isEnabled) private var isEnabled
+    @Environment(\.colorScheme) private var colorScheme
+    
+    public var customColor: Color?
+    
+    private var fontColor: Color {
+        // Always white unless disabled with a dark theme.
+        .white.opacity(colorScheme == .dark && !isEnabled ? 0.3 : 1.0)
+    }
+    
+    private var backgroundColor: Color {
+        customColor ?? .element.accent
+    }
+    
+    public init(customColor: Color? = nil) {
+        self.customColor = customColor
+    }
+    
+    public func makeBody(configuration: Self.Configuration) -> some View {
+        configuration.label
+            .padding(12.0)
+            .frame(maxWidth: .infinity)
+            .foregroundColor(fontColor)
+            .font(.element.body)
+            .background(backgroundColor.opacity(backgroundOpacity(when: configuration.isPressed)))
+            .cornerRadius(8.0)
+    }
+    
+    private func backgroundOpacity(when isPressed: Bool) -> CGFloat {
+        guard isEnabled else { return 0.3 }
+        return isPressed ? 0.6 : 1.0
+    }
+}
+
+public struct PrimaryActionButtonStyle_Previews: PreviewProvider {
+    public static var states: some View {
+        VStack {
+            Button("Enabled") { /* preview */ }
+                .buttonStyle(PrimaryActionButtonStyle())
+            
+            Button("Disabled") { /* preview */  }
+                .buttonStyle(PrimaryActionButtonStyle())
+                .disabled(true)
+            
+            Button { /* preview */  } label: {
+                Text("Clear BG")
+                    .foregroundColor(.element.alert)
+            }
+            .buttonStyle(PrimaryActionButtonStyle(customColor: .clear))
+            
+            Button("Red BG") { /* preview */  }
+                .buttonStyle(PrimaryActionButtonStyle(customColor: .element.alert))
+        }
+        .padding()
+    }
+    
+    public static var previews: some View {
+        states
+            .preferredColorScheme(.light)
+        states
+            .preferredColorScheme(.dark)
+    }
+}
@@ -0,0 +1,82 @@
+//
+// 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
+
+public struct SecondaryActionButtonStyle: ButtonStyle {
+    @Environment(\.isEnabled) private var isEnabled
+    
+    public var customColor: Color?
+    
+    public init(customColor: Color? = nil) {
+        self.customColor = customColor
+    }
+    
+    public func makeBody(configuration: Self.Configuration) -> some View {
+        configuration.label
+            .padding(12.0)
+            .frame(maxWidth: .infinity)
+            .foregroundColor(strokeColor(configuration.isPressed))
+            .font(.element.body)
+            .background(RoundedRectangle(cornerRadius: 8)
+                            .strokeBorder()
+                            .foregroundColor(strokeColor(configuration.isPressed)))
+            .opacity(isEnabled ? 1.0 : 0.6)
+    }
+    
+    private func strokeColor(_ isPressed: Bool) -> Color {
+        if let customColor = customColor {
+            return customColor
+        }
+        
+        return isPressed ? .element.accent.opacity(0.6) : .element.accent
+    }
+}
+
+public struct SecondaryActionButtonStyle_Previews: PreviewProvider {
+    public static var previews: some View {
+        Group {
+            states
+        }
+        .preferredColorScheme(.light)
+        Group {
+            states
+        }
+        .preferredColorScheme(.dark)
+    }
+    
+    public static var states: some View {
+        VStack {
+            Button("Enabled") { /* preview */ }
+                .buttonStyle(SecondaryActionButtonStyle())
+            
+            Button("Disabled") { /* preview */ }
+                .buttonStyle(SecondaryActionButtonStyle())
+                .disabled(true)
+            
+            Button { /* preview */ } label: {
+                Text("Clear BG")
+                    .foregroundColor(.element.alert)
+            }
+            .buttonStyle(SecondaryActionButtonStyle(customColor: .clear))
+            
+            Button("Red BG") { /* preview */ }
+                .buttonStyle(SecondaryActionButtonStyle(customColor: .element.alert))
+        }
+        .padding()
+    }
+}