66 lines
2.7 KiB
Swift
66 lines
2.7 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 SwiftUI
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extension View {
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func waveformInteraction(isDragging: GestureState<Bool>, progress: Double, showCursor: Bool, onSeek: @escaping (Double) -> Void) -> some View {
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modifier(WaveformInteractionModifier(isDragging: isDragging, progress: progress, showCursor: showCursor, onSeek: onSeek))
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}
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}
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private struct WaveformInteractionModifier: ViewModifier {
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let isDragging: GestureState<Bool>
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let progress: Double
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let showCursor: Bool
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let onSeek: (Double) -> Void
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@ScaledMetric private var cursorVisibleWidth = 2.0
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@ScaledMetric private var cursorVisibleHeight = 24.0
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private let cursorInteractiveSize: CGFloat = 50
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func body(content: Content) -> some View {
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GeometryReader { geometry in
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content
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.progressCursor(progress: progress) {
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WaveformCursorView(color: .compound.iconAccentTertiary)
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.frame(width: cursorVisibleWidth, height: cursorVisibleHeight)
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.opacity(showCursor ? 1 : 0)
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.frame(width: cursorInteractiveSize)
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.frame(maxHeight: cursorInteractiveSize)
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.contentShape(Rectangle())
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.gesture(DragGesture(coordinateSpace: .named(Self.namespaceName))
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.updating(isDragging) { dragGesture, isDragging, _ in
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isDragging = true
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let progress = dragGesture.location.x / geometry.size.width
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onSeek(max(0, min(progress, 1.0)))
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}
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)
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.offset(x: -cursorInteractiveSize / 2, y: 0)
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}
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.gesture(SpatialTapGesture()
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.onEnded { tapGesture in
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let progress = tapGesture.location.x / geometry.size.width
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onSeek(max(0, min(progress, 1.0)))
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})
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}
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.coordinateSpace(name: Self.namespaceName)
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.animation(nil, value: progress)
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}
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private static let namespaceName = "voice-message-waveform"
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}
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