61 lines
1.9 KiB
Swift
61 lines
1.9 KiB
Swift
//
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// TimelineView.swift
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// ElementX
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//
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// Created by Stefan Ceriu on 30/03/2022.
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// Copyright © 2022 Element. All rights reserved.
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//
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import Combine
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import Foundation
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import SwiftUI
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import Introspect
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struct TimelineView: View {
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@State private var bottomVisiblePublisher = PassthroughSubject<Bool, Never>()
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@State private var scrollToBottomPublisher = PassthroughSubject<Void, Never>()
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@State private var scollToBottomButtonVisible = false
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@ObservedObject var context: RoomScreenViewModel.Context
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var body: some View {
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ZStack(alignment: .bottomTrailing) {
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TimelineItemList(context: context, bottomVisiblePublisher: bottomVisiblePublisher, scrollToBottomPublisher: scrollToBottomPublisher)
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scrollToBottomButton
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}
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}
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@ViewBuilder
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private var scrollToBottomButton: some View {
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Button(action: {
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scrollToBottomPublisher.send(())
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}, label: {
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Image(uiImage: Asset.Images.timelineScrollToBottom.image)
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.shadow(radius: 2.0)
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.padding()
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})
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.onReceive(bottomVisiblePublisher, perform: { visible in
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scollToBottomButtonVisible = !visible
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})
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.opacity(scollToBottomButtonVisible ? 1.0 : 0.0)
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.animation(.default, value: scollToBottomButtonVisible)
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}
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}
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struct TimelineView_Previews: PreviewProvider {
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static var previews: some View {
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body.preferredColorScheme(.light)
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body.preferredColorScheme(.dark)
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}
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@ViewBuilder
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static var body: some View {
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let viewModel = RoomScreenViewModel(timelineController: MockRoomTimelineController(),
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timelineViewFactory: RoomTimelineViewFactory(),
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roomName: nil)
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TimelineView(context: viewModel.context)
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}
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}
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