145 lines
4.8 KiB
Swift
145 lines
4.8 KiB
Swift
//
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// Copyright 2022 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import SwiftUI
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/// Fonts at https://www.figma.com/file/X4XTH9iS2KGJ2wFKDqkyed/Compound?node-id=1362%3A0
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@objcMembers
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public class ElementSharedFonts {
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// MARK: - Types
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/// A wrapper to provide both a `UIFont` and a SwiftUI `Font` in the same type.
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/// The need for this comes from `Font` not adapting for dynamic type until the app
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/// is restarted (or working at all in Xcode Previews) when initialised from a `UIFont`
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/// (even if that font was created with the appropriate metrics).
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public struct SharedFont {
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public let uiFont: UIFont
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public let font: Font
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}
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// MARK: - Private
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/// Returns an instance of the font associated with the text style and scaled appropriately for the content size category defined in the trait collection.
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/// Keep this method private method at the moment and create a DesignKit.Fonts.TextStyle if needed.
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private func font(forTextStyle textStyle: UIFont.TextStyle, compatibleWith traitCollection: UITraitCollection? = nil) -> UIFont {
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UIFont.preferredFont(forTextStyle: textStyle, compatibleWith: traitCollection)
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}
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}
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// MARK: - Fonts protocol
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public extension ElementSharedFonts {
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var largeTitle: SharedFont {
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let uiFont = font(forTextStyle: .largeTitle)
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return SharedFont(uiFont: uiFont, font: .largeTitle)
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}
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var largeTitleB: SharedFont {
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let uiFont = largeTitle.uiFont.bold
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return SharedFont(uiFont: uiFont, font: .largeTitle.bold())
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}
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var title1: SharedFont {
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let uiFont = font(forTextStyle: .title1)
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return SharedFont(uiFont: uiFont, font: .title)
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}
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var title1B: SharedFont {
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let uiFont = title1.uiFont.bold
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return SharedFont(uiFont: uiFont, font: .title.bold())
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}
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var title2: SharedFont {
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let uiFont = font(forTextStyle: .title2)
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return SharedFont(uiFont: uiFont, font: .title2)
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}
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var title2B: SharedFont {
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let uiFont = title2.uiFont.bold
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return SharedFont(uiFont: uiFont, font: .title2.bold())
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}
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var title3: SharedFont {
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let uiFont = font(forTextStyle: .title3)
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return SharedFont(uiFont: uiFont, font: .title3)
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}
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var title3SB: SharedFont {
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let uiFont = title3.uiFont.semiBold
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return SharedFont(uiFont: uiFont, font: .title3.weight(.semibold))
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}
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var headline: SharedFont {
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let uiFont = font(forTextStyle: .headline)
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return SharedFont(uiFont: uiFont, font: .headline)
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}
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var subheadline: SharedFont {
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let uiFont = font(forTextStyle: .subheadline)
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return SharedFont(uiFont: uiFont, font: .subheadline)
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}
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var body: SharedFont {
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let uiFont = font(forTextStyle: .body)
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return SharedFont(uiFont: uiFont, font: .body)
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}
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var bodySB: SharedFont {
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let uiFont = body.uiFont.semiBold
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return SharedFont(uiFont: uiFont, font: .body.weight(.semibold))
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}
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var callout: SharedFont {
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let uiFont = font(forTextStyle: .callout)
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return SharedFont(uiFont: uiFont, font: .callout)
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}
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var calloutSB: SharedFont {
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let uiFont = callout.uiFont.semiBold
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return SharedFont(uiFont: uiFont, font: .callout.weight(.semibold))
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}
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var footnote: SharedFont {
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let uiFont = font(forTextStyle: .footnote)
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return SharedFont(uiFont: uiFont, font: .footnote)
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}
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var footnoteSB: SharedFont {
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let uiFont = footnote.uiFont.semiBold
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return SharedFont(uiFont: uiFont, font: .footnote.weight(.semibold))
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}
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var caption1: SharedFont {
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let uiFont = font(forTextStyle: .caption1)
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return SharedFont(uiFont: uiFont, font: .caption)
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}
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var caption1SB: SharedFont {
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let uiFont = caption1.uiFont.semiBold
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return SharedFont(uiFont: uiFont, font: .caption.weight(.semibold))
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}
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var caption2: SharedFont {
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let uiFont = font(forTextStyle: .caption2)
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return SharedFont(uiFont: uiFont, font: .caption2)
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}
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var caption2SB: SharedFont {
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let uiFont = caption2.uiFont.semiBold
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return SharedFont(uiFont: uiFont, font: .caption2.weight(.semibold))
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}
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}
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