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131 lines
4.8 KiB
Swift
131 lines
4.8 KiB
Swift
//
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// ComposeView.swift
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//
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//
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// Created by MainasuK Cirno on 2021-7-16.
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//
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import UIKit
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import SwiftUI
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public struct ComposeView: View {
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@EnvironmentObject var viewModel: ComposeViewModel
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@State var statusEditorViewWidth: CGFloat = .zero
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let horizontalMargin: CGFloat = 20
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public init() { }
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public var body: some View {
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GeometryReader { proxy in
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List {
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// Content Warning
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if viewModel.isContentWarningComposing {
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ContentWarningEditorView(
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contentWarningContent: $viewModel.contentWarningContent,
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placeholder: viewModel.contentWarningPlaceholder
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)
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.padding(EdgeInsets(top: 6, leading: horizontalMargin, bottom: 6, trailing: horizontalMargin))
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.background(viewModel.contentWarningBackgroundColor)
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.transition(.opacity)
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.listRow()
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}
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// Author
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StatusAuthorView(
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avatarImageURL: viewModel.avatarImageURL,
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name: viewModel.authorName,
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username: viewModel.authorUsername
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)
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.padding(EdgeInsets(top: 20, leading: horizontalMargin, bottom: 16, trailing: horizontalMargin))
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.listRow()
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// Editor
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StatusEditorView(
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string: $viewModel.statusContent,
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placeholder: viewModel.statusPlaceholder,
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width: statusEditorViewWidth,
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attributedString: viewModel.statusContentAttributedString,
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keyboardType: .twitter,
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viewDidAppear: $viewModel.viewDidAppear
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)
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.frame(width: statusEditorViewWidth)
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.frame(minHeight: 100)
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.padding(EdgeInsets(top: 0, leading: horizontalMargin, bottom: 0, trailing: horizontalMargin))
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.listRow()
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// Attachments
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ForEach(viewModel.attachmentViewModels) { attachmentViewModel in
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let descriptionBinding = Binding {
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return attachmentViewModel.descriptionContent
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} set: { newValue in
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attachmentViewModel.descriptionContent = newValue
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}
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StatusAttachmentView(
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image: attachmentViewModel.thumbnailImage,
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descriptionPlaceholder: attachmentViewModel.descriptionPlaceholder,
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description: descriptionBinding,
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errorPrompt: attachmentViewModel.errorPrompt,
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errorPromptImage: attachmentViewModel.errorPromptImage,
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isUploading: attachmentViewModel.isUploading,
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progressViewTintColor: attachmentViewModel.progressViewTintColor,
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removeButtonAction: {
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self.viewModel.removeAttachmentViewModel(attachmentViewModel)
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}
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)
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}
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.padding(EdgeInsets(top: 16, leading: horizontalMargin, bottom: 0, trailing: horizontalMargin))
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.fixedSize(horizontal: false, vertical: true)
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.listRow()
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// bottom padding
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Color.clear
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.frame(height: viewModel.toolbarHeight + 20)
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.listRow()
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} // end List
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.introspectTableView(customize: { tableView in
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// tableView.keyboardDismissMode = .onDrag
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tableView.verticalScrollIndicatorInsets.bottom = viewModel.toolbarHeight
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})
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.preference(
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key: ComposeListViewFramePreferenceKey.self,
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value: proxy.frame(in: .local)
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)
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.onPreferenceChange(ComposeListViewFramePreferenceKey.self) { frame in
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var frame = frame
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frame.size.width = frame.width - 2 * horizontalMargin
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statusEditorViewWidth = frame.width
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}
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}
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}
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}
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struct ComposeListViewFramePreferenceKey: PreferenceKey {
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static var defaultValue: CGRect = .zero
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static func reduce(value: inout CGRect, nextValue: () -> CGRect) { }
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}
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extension View {
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func listRow() -> some View {
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self.frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .leading)
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.listRowInsets(EdgeInsets(top: -1, leading: -1, bottom: -1, trailing: -1))
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.background(Color(.systemBackground))
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}
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}
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struct ComposeView_Previews: PreviewProvider {
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static let viewModel: ComposeViewModel = {
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let viewModel = ComposeViewModel()
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return viewModel
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}()
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static var previews: some View {
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ComposeView().environmentObject(viewModel)
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}
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}
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