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Precise video scrubbing for pointer/pencil

This commit is contained in:
Shadowfacts 2024-07-06 17:26:33 -07:00
parent d1af911241
commit 9fefc9e8f8
1 changed files with 15 additions and 5 deletions
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16
Tusker/Screens/Gallery/VideoControlsViewController.swift
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@ -270,8 +270,13 @@ private class VideoScrubbingControl: UIControl {
} }
override func beginTracking(_ touch: UITouch, with event: UIEvent?) -> Bool { override func beginTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
if touch.type == .pencil || touch.type == .indirectPointer {
touchStartLocation = .zero
scrubbingStartFraction = 0
} else {
touchStartLocation = touch.location(in: self) touchStartLocation = touch.location(in: self)
scrubbingStartFraction = fractionComplete scrubbingStartFraction = fractionComplete
}
animator = UIViewPropertyAnimator(duration: 0.1, curve: .linear) animator = UIViewPropertyAnimator(duration: 0.1, curve: .linear)
animator!.addAnimations { animator!.addAnimations {
@ -290,13 +295,20 @@ private class VideoScrubbingControl: UIControl {
feedbackGenerator!.prepare() feedbackGenerator!.prepare()
#endif #endif
updateScrubbing(for: touch)
return true return true
} }
override func continueTracking(_ touch: UITouch, with event: UIEvent?) -> Bool { override func continueTracking(_ touch: UITouch, with event: UIEvent?) -> Bool {
updateScrubbing(for: touch)
return true
}
private func updateScrubbing(for touch: UITouch) {
guard let touchStartLocation, guard let touchStartLocation,
let scrubbingStartFraction else { let scrubbingStartFraction else {
return false return
} }
let location = touch.location(in: self) let location = touch.location(in: self)
let translation = CGPoint(x: location.x - touchStartLocation.x, y: location.y - touchStartLocation.y) let translation = CGPoint(x: location.x - touchStartLocation.x, y: location.y - touchStartLocation.y)
@ -326,8 +338,6 @@ private class VideoScrubbingControl: UIControl {
transform = CGAffineTransform(scaleX: 1 + stretchAmount / bounds.width, y: 1 + 0.5 * (1 - stretchFactor)) transform = CGAffineTransform(scaleX: 1 + stretchAmount / bounds.width, y: 1 + 0.5 * (1 - stretchFactor))
.translatedBy(x: sign(unclampedFractionComplete) * stretchAmount / 2, y: 0) .translatedBy(x: sign(unclampedFractionComplete) * stretchAmount / 2, y: 0)
} }
return true
} }
override func endTracking(_ touch: UITouch?, with event: UIEvent?) { override func endTracking(_ touch: UITouch?, with event: UIEvent?) {