124 lines
4.3 KiB
Swift
124 lines
4.3 KiB
Swift
//
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// Copyright 2023 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 CoreLocation
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import SwiftUI
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struct MapLibreStaticMapView<PinAnnotation: View>: View {
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private let coordinates: CLLocationCoordinate2D
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private let zoomLevel: Double
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private let mapTilerStatic: MapTilerStaticMapProtocol
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private let mapTilerAttributionPlacement: MapTilerAttributionPlacement
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private let pinAnnotationView: PinAnnotation
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@Environment(\.colorScheme) private var colorScheme
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@State private var fetchAttempt = 0
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init(coordinates: CLLocationCoordinate2D,
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zoomLevel: Double,
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attributionPlacement: MapTilerAttributionPlacement,
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mapTilerStatic: MapTilerStaticMapProtocol,
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@ViewBuilder pinAnnotationView: () -> PinAnnotation) {
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self.coordinates = coordinates
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self.zoomLevel = zoomLevel
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self.mapTilerStatic = mapTilerStatic
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mapTilerAttributionPlacement = attributionPlacement
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self.pinAnnotationView = pinAnnotationView()
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}
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var body: some View {
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GeometryReader { geometry in
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if let url = mapTilerStatic.staticMapURL(for: colorScheme.mapStyle,
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coordinates: coordinates,
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zoomLevel: zoomLevel,
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size: geometry.size,
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attribution: mapTilerAttributionPlacement) {
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AsyncImage(url: url) { phase in
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switch phase {
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case .empty:
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Image("mapBlurred")
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.resizable()
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.aspectRatio(contentMode: .fill)
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case .success(let image):
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ZStack {
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image
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.resizable()
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.aspectRatio(contentMode: .fill)
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pinAnnotationView
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}
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case .failure:
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errorView
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@unknown default:
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EmptyView()
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}
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}
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.id(fetchAttempt)
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} else {
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Image("mapBlurred")
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}
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}
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}
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private var errorView: some View {
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Button {
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fetchAttempt += 1
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} label: {
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ZStack {
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Image("mapBlurred")
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VStack {
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Image(systemName: "arrow.clockwise")
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Text(L10n.actionStaticMapLoad)
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}
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}
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}
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}
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}
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private extension ColorScheme {
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var mapStyle: MapTilerStyle {
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switch self {
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case .light:
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return .light
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case .dark:
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return .dark
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@unknown default:
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return .light
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}
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}
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}
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struct MapLibreStaticMapView_Previews: PreviewProvider {
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static var previews: some View {
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MapLibreStaticMapView(coordinates: CLLocationCoordinate2D(),
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zoomLevel: 15,
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attributionPlacement: .bottomLeft,
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mapTilerStatic: MapTilerStaticMapMock()) {
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Image(systemName: "mappin.circle.fill")
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.padding(.bottom, 35)
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}
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}
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}
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private struct MapTilerStaticMapMock: MapTilerStaticMapProtocol {
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func staticMapURL(for style: MapTilerStyle, coordinates: CLLocationCoordinate2D, zoomLevel: Double, size: CGSize, attribution: MapTilerAttributionPlacement) -> URL? {
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switch style {
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case .light:
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return URL(string: "https://www.maptiler.com/img/cloud/home/map5.webp")
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case .dark:
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return URL(string: "https://www.maptiler.com/img/cloud/home/map6.webp")
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}
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}
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}
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