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AppSearchModalContentView.swift
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AppSearchModalContentView.swift
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/*
* Backpack - Skyscanner's Design System
*
* Copyright 2018-2023 Skyscanner 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
struct AppSearchModalContentView: View {
let state: BPKAppSearchModalContent
let onScroll: (_ offset: CGPoint) -> Void
var body: some View {
ObservableScrollView { point in
if point != .zero {
onScroll(point)
}
} content: {
VStack(spacing: .base) {
if let shortcuts = state.shortcuts, !shortcuts.isEmpty {
makeShortcuts(shortcuts)
}
ForEach(state.sections, id: \.self) {
makeSections($0)
}
}
}
}
private func makeShortcuts(
_ shortcuts: [BPKAppSearchModalContent.Shortcut]
) -> some View {
BPKSingleSelectChipGroup(
chips: shortcuts.map({ BPKSingleSelectChipGroup.ChipItem( text: $0.text, icon: $0.icon) }),
selectedIndex: .constant(nil),
onItemClick: { shortcuts[$0].onShortcutSelected() }
)
}
private func makeSections(_ section: BPKAppSearchModalContent.Section) -> some View {
VStack(spacing: BPKSpacing.none) {
if let heading = section.heading {
HStack {
BPKText(heading.title, style: .label1)
.accessibilityAddTraits(.isHeader)
Spacer()
if let action = heading.action {
BPKButton(action.text, action: action.onActionSelected)
.buttonStyle(.link)
}
}
}
ForEach(section.items, id: \.self) { item in
ItemCell(item: item)
}
}
}
struct ItemCell: View {
@Environment(\.sizeCategory) var sizeCategory
let item: BPKAppSearchModalContent.Item
var body: some View {
Button(action: item.onItemSelected) {
HStack(spacing: .base) {
BPKIconView(item.icon, size: .large)
VStack(alignment: .leading) {
BPKText(item.title, style: .bodyDefault)
.lineLimit(nil)
.multilineTextAlignment(.leading)
if let subtitle = item.subtitle {
BPKText(subtitle, style: .footnote)
.lineLimit(subtitleLineLimit())
.multilineTextAlignment(.leading)
}
}
.padding(.vertical, .base)
Spacer()
if let tertiary = item.tertiaryLabel {
BPKText(tertiary, style: .footnote)
.foregroundColor(.textSecondaryColor)
}
}
.contentShape(Rectangle())
}
.buttonStyle(ItemCellButtonStyle())
}
private func subtitleLineLimit() -> Int? {
let isDefaultSizeOrSmaller = sizeCategory <= .large
return isDefaultSizeOrSmaller ? 2 : nil
}
}
// Basic button style to remove any styling for on press etc.
// In the future we might want to consider using .plain
// Or any other tap indication
struct ItemCellButtonStyle: ButtonStyle {
func makeBody(configuration: Configuration) -> some View {
configuration.label
}
}
}
struct AppSearchModalContentView_Previews: PreviewProvider {
static var previews: some View {
AppSearchModalContentView(state: .init(
sections: (0..<3).map(buildSection),
shortcuts: (0..<4).map(buildShortcut)
), onScroll: { _ in })
}
static func buildSection(with index: Int) -> BPKAppSearchModalContent.Section {
return .init(
heading: .init(title: "Section \(index + 1)", action: .init(text: "Action", onActionSelected: { })),
items: (0..<3).map(buildItem)
)
}
static func buildItem(with index: Int) -> BPKAppSearchModalContent.Item {
return .init(
title: "Item No.\(index + 1)",
subtitle: nil,
tertiaryLabel: "City",
icon: .recentSearches,
onItemSelected: {}
)
}
static func buildShortcut(with index: Int) -> BPKAppSearchModalContent.Shortcut {
return .init(text: "Shortcut \(index + 1)", icon: .landmark, onShortcutSelected: { })
}
}