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feat: 🎸 [JIRA: HCPSDKFIORIUIKIT-2348] shadow effect api #791
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46 changes: 46 additions & 0 deletions
46
Apps/Examples/Examples/FioriSwiftUICore/Views/ShadowEffectExample.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| import FioriSwiftUICore | ||
| import SwiftUI | ||
|
|
||
| struct ShadowEffectExample: View { | ||
| var body: some View { | ||
| ScrollView { | ||
| VStack(spacing: 20) { | ||
| ForEach(FioriShadowStyle.allCases, id: \.self) { style in | ||
| ZStack { | ||
| Color.preferredColor(.secondaryGroupedBackground) | ||
| .frame(width: 300, height: 100) | ||
| .clipShape(RoundedRectangle(cornerRadius: 10)) | ||
| .shadow(style) | ||
| .padding() | ||
|
|
||
| self.styleDescription(style) | ||
| .bold() | ||
| .font(.fiori(forTextStyle: .title1)) | ||
| } | ||
| } | ||
| }.frame(maxWidth: .infinity) | ||
| } | ||
| .frame(maxWidth: .infinity) | ||
| .background(Color.preferredColor(.primaryGroupedBackground)) | ||
| .navigationTitle("Shadow Effect") | ||
| } | ||
|
|
||
| @ViewBuilder func styleDescription(_ style: FioriShadowStyle) -> some View { | ||
| switch style { | ||
| case .level0: | ||
| Text("Level 0") | ||
| case .level1: | ||
| Text("Level 1") | ||
| case .level2: | ||
| Text("Level 2") | ||
| case .level3: | ||
| Text("Level 3") | ||
| case .level4: | ||
| Text("Level 3") | ||
| case .smallElement: | ||
| Text("Small Shape") | ||
| case .mediumElement: | ||
| Text("Medium Shape") | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| import FioriThemeManager | ||
| import SwiftUI | ||
|
|
||
| /// Fiori style shadow. | ||
| public enum FioriShadowStyle: CaseIterable { | ||
| /// Shadow level 0. Most used in banner, header or previews. | ||
| case level0 | ||
| /// Shadow Level 1. | ||
| case level1 | ||
| /// Shadow Level 2. Most used in cards or modal views. | ||
| case level2 | ||
| /// Shadow Level 3. Most used in toast message or quick sort. | ||
| case level3 | ||
| /// Shadow Level 4. Most used in popovers. | ||
| case level4 | ||
|
|
||
| /// Shadow for small element. Most used in switch or slider. | ||
| case smallElement | ||
| /// Shadow for medium element. Most used in segmented control. | ||
| case mediumElement | ||
| } | ||
|
|
||
| public extension View { | ||
| /// Apply a shadow with the specified fiori style. | ||
| /// - Parameter style: Shadow style. | ||
| /// - Returns: A new view with the specified shadow style. | ||
| func shadow(_ style: FioriShadowStyle) -> some View { | ||
| self.modifier(FioriShadowModifier(style: style)) | ||
| } | ||
| } | ||
|
|
||
| struct FioriShadowModifier: ViewModifier { | ||
| let style: FioriShadowStyle | ||
|
|
||
| let color1 = Color(white: 0, opacity: 0.13) | ||
| let color2 = Color(white: 0, opacity: 0.04) | ||
| let color3 = Color(white: 0, opacity: 0.2) | ||
|
|
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| let color4 = Color(white: 0, opacity: 0.12) | ||
|
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| func body(content: Content) -> some View { | ||
| switch self.style { | ||
| case .level0: | ||
| content | ||
| .shadow(color: self.color1, radius: 1) | ||
| case .level1: | ||
| content | ||
| .shadow(color: self.color1, radius: 1) | ||
| .shadow(color: self.color2, radius: 2, y: 1) | ||
| case .level2: | ||
| content | ||
| .shadow(color: self.color1, radius: 1) | ||
| .shadow(color: self.color2, radius: 4, y: 2) | ||
| case .level3: | ||
| content | ||
| .shadow(color: self.color1, radius: 1) | ||
| .shadow(color: self.color2, radius: 8, y: 8) | ||
| .shadow(color: self.color2, radius: 16, y: 16) | ||
| case .level4: | ||
| content | ||
| .shadow(color: self.color2, radius: 1) | ||
| .shadow(color: self.color2, radius: 8, y: 8) | ||
| .shadow(color: self.color3, radius: 50, y: 10) | ||
| case .smallElement: | ||
| content | ||
| .shadow(color: self.color4, radius: 6.5, y: 6) | ||
| .shadow(color: self.color4, radius: 2, y: 0.5) | ||
| case .mediumElement: | ||
| content | ||
| .shadow(color: self.color2, radius: 0.5, y: 3) | ||
| .shadow(color: self.color4, radius: 4, y: 3) | ||
| } | ||
| } | ||
| } | ||
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Does the spec say the color used here should be "white" ? I think opacity on top of a "white" color may not create any visual effect. Also, we need to consider dark mode. So base color should be a dynamic color , I assume. You can follow up with Designer on this.
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Yes, all shadows are black(0 white) with opacity and same values for light and dark mode.
