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AudioPlayer features #58: Show toolbar in two rows.
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ReaderTranslator/Views/ReaderView/Modes/PdfToolbarView.swift
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ReaderTranslator/Views/ReaderView/Modes/ReaderView_Pdf/ReaderView_Pdf_Toolbar.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| // | ||
| // AudioPlayerView.swift | ||
| // ReaderTranslator | ||
| // | ||
| // Created by Viktor Kushnerov on 28/11/19. | ||
| // Copyright © 2019 Viktor Kushnerov. All rights reserved. | ||
| // | ||
|
|
||
| import SwiftUI | ||
| import AVFoundation | ||
|
|
||
| private var player: AVAudioPlayer? | ||
|
|
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| struct ReaderView_Pdf_Toolbar: View { | ||
| @ObservedObject var store = Store.shared | ||
|
|
||
| @State var currentStatus = "" | ||
| @State var isPlaying = false | ||
| @State var audioRate: Float = 1 { | ||
| didSet { | ||
| player?.rate = audioRate | ||
| } | ||
| } | ||
|
|
||
| private var openPdfButton: some View { | ||
| Button( | ||
| action: { | ||
| OpenPanel.showChooseFileDialog(title: "Open PDF file", allowedFileTypes: ["pdf"]) { url in | ||
| guard let url = url?.absoluteString else { return } | ||
|
|
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| self.store.lastPdfPage = "1" | ||
| self.store.lastPdf = url | ||
| } | ||
| }, | ||
| label: { Text("Open PDF") }) | ||
| } | ||
|
|
||
| private var openAudioButton: some View { | ||
| Button(action: { | ||
| OpenPanel.showChooseFileDialog(title: "Open audio file", allowedFileTypes: ["mp3", "mov"]) { url in | ||
| guard let url = url else { return } | ||
| self.store.pdfAudio = url | ||
| self.openAudio(url: url) | ||
| self.audioRate = 1 | ||
| } | ||
| }, label: { Text("Open audio") }) | ||
| } | ||
|
|
||
| private var rewindButtonsView: some View { | ||
| HStack(spacing: 2) { | ||
| Button(action: { player?.currentTime = 0 }, label: { Text("|<") }) | ||
| rewindButton(label: "-50", step: -50) | ||
| rewindButton(label: "-5", step: -5) | ||
| rewindButton(label: "-1", step: -1) | ||
|
|
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| Button(action: { | ||
| guard let player = player else { return } | ||
| if self.isPlaying { | ||
| player.pause() | ||
| } else { | ||
| //hack: currentTime jump forward for some time after an audio is continue to play | ||
| let currentTime = player.currentTime | ||
| player.play() | ||
| player.currentTime = currentTime | ||
| } | ||
| }, label: { Text(isPlaying ? "Pause" : "Play").frame(width: 40) }) | ||
|
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| rewindButton(label: "+1", step: 1) | ||
| rewindButton(label: "+5", step: 5) | ||
| rewindButton(label: "+50", step: 50) | ||
| } | ||
| } | ||
|
|
||
| private var audioRateButtonsView: some View { | ||
| HStack(spacing: 2) { | ||
| Divider() | ||
| Button(action: { self.audioRate = 0.2 }, label: { Text(".2") }) | ||
| Button(action: { self.audioRate = 0.5 }, label: { Text(".5") }) | ||
| Button(action: { self.audioRate -= 0.1 }, label: { Text("-") }) | ||
| Text(String(format: "%.1f", arguments: [audioRate])) | ||
| Button(action: { self.audioRate += 0.1 }, label: { Text("+") }) | ||
| Button(action: { self.audioRate = 1 }, label: { Text("1") }) | ||
| } | ||
| } | ||
|
|
||
| var body: some View { | ||
| VStack { | ||
| HStack { | ||
| openPdfButton | ||
| openAudioButton | ||
|
|
||
| Text("\(currentStatus)").frame(width: 100) | ||
| } | ||
| HStack { | ||
| rewindButtonsView | ||
| audioRateButtonsView | ||
| } | ||
| } | ||
| .onAppear { | ||
| _ = Timer.scheduledTimer(withTimeInterval: 0.2, repeats: true) { _ in | ||
| guard let player = player else { return } | ||
| self.currentStatus = String(format: "%.1f/%.1f", player.currentTime, player.duration) | ||
| self.isPlaying = player.isPlaying | ||
| } | ||
| if let url = self.store.pdfAudio { self.openAudio(url: url) } | ||
| } | ||
| } | ||
|
|
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| private func rewindButton(label: String, step: Double) -> some View { | ||
| Button(action: { player?.currentTime += step }, label: { Text(label) }) | ||
| } | ||
|
|
||
| private func openAudio(url: URL) { | ||
| do { | ||
| player = try AVAudioPlayer(contentsOf: url) | ||
| } catch { | ||
| print(error) | ||
| } | ||
| player?.enableRate = true | ||
| } | ||
| } | ||
|
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||
| struct ReaderView_Pdf_Toolbar_Previews: PreviewProvider { | ||
| static var previews: some View { | ||
| ReaderView_Pdf_Toolbar() | ||
| } | ||
| } |
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