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62
ElementX/Sources/Other/VoiceMessage/WaveformInteractionModifier.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| // | ||
| // Copyright 2023 New Vector 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. | ||
| // | ||
|
|
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| import SwiftUI | ||
|
|
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| extension View { | ||
| func waveformInteraction(isDragging: GestureState<Bool>, progress: Double, showCursor: Bool, onSeek: @escaping (Double) -> Void) -> some View { | ||
| modifier(WaveformInteractionModifier(isDragging: isDragging, progress: progress, showCursor: showCursor, onSeek: onSeek)) | ||
| } | ||
| } | ||
|
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| private struct WaveformInteractionModifier: ViewModifier { | ||
| let isDragging: GestureState<Bool> | ||
| let progress: Double | ||
| let showCursor: Bool | ||
| let onSeek: (Double) -> Void | ||
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|
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| @ScaledMetric private var cursorVisibleWidth = 2.0 | ||
| private let cursorInteractiveWidth: CGFloat = 50 | ||
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|
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| func body(content: Content) -> some View { | ||
| GeometryReader { geometry in | ||
| content | ||
| .gesture(SpatialTapGesture() | ||
| .onEnded { tapGesture in | ||
| let progress = tapGesture.location.x / geometry.size.width | ||
| onSeek(max(0, min(progress, 1.0))) | ||
| }) | ||
| .progressCursor(progress: progress) { | ||
| WaveformCursorView(color: .compound.iconAccentTertiary) | ||
| .frame(width: cursorVisibleWidth) | ||
| .opacity(showCursor ? 1 : 0) | ||
| .frame(width: cursorInteractiveWidth) | ||
| .contentShape(Rectangle()) | ||
| .gesture(DragGesture(coordinateSpace: .named(Self.namespaceName)) | ||
| .updating(isDragging) { dragGesture, isDragging, _ in | ||
| isDragging = true | ||
| let progress = dragGesture.location.x / geometry.size.width | ||
| onSeek(max(0, min(progress, 1.0))) | ||
| } | ||
| ) | ||
| .offset(x: -cursorInteractiveWidth / 2, y: 0) | ||
| } | ||
| } | ||
| .coordinateSpace(name: Self.namespaceName) | ||
| } | ||
|
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| private static let namespaceName = "voice-message-waveform" | ||
| } |
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