Fox7777
@Fox7777
Люблю python

Как остановить скролл на последнем фрейме?

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	<img class="soundbutton paused" src="./img/sound.gif" alt="" class="sound">
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</html>

let zSpacing = -1000,
	lastPos = zSpacing / 5,
	$frames = document.getElementsByClassName('frame'),
	frames = Array.from($frames),
	zVals = []

window.onscroll = function () {
	let top = document.documentElement.scrollTop,
		delta = lastPos - top
	lastPos = top

	frames.forEach(function (n, i) {
		zVals.push((i * zSpacing) + zSpacing)
		zVals[i] += delta * -5.5
		let frame = frames[i],
			transform = `translateZ(${zVals[i]}px)`,
		opacity = zVals[i] < Math.abs(zSpacing) / 1.8 ? 1 : 0
		
		frame.setAttribute('style', `transform: ${transform}; opacity: ${opacity}`)
	});
}
window.scrollTo(0, 1)


let soundbutton = document.querySelector('.soundbutton'),
		audio = document.querySelector('.audio')

soundbutton.addEventListener('click', e =>{
	soundbutton.classList.toggle('paused')
	audio.paused ? audio.play() : audio.pause()
})

window.onfocus = function(){
	soundbutton.classList.contains('paused') ? audio.pause() : audio.play()
}

window.onblur = function() {
	audio.pause()
}

Как сделать остановку скролла на последнем фрейме, никак не могу понять
  • Вопрос задан
  • 45 просмотров
Решения вопроса 1
Lapita12
@Lapita12
Тесты, тесты?
let zSpacing = -1000,
  lastPos = zSpacing / 5,
  $frames = document.getElementsByClassName('frame'),
  frames = Array.from($frames),
  zVals = [];

const lastFrame = $frames[$frames.length - 1];
const lastFrameHeight = lastFrame.offsetHeight;
const lastFrameTop = lastFrame.offsetTop;

window.onscroll = function() {
  let top = document.documentElement.scrollTop,
    delta = lastPos - top
  lastPos = top

  frames.forEach(function(n, i) {
    zVals.push((i * zSpacing) + zSpacing)
    zVals[i] += delta * -5.5
    let frame = frames[i],
      transform = `translateZ(${zVals[i]}px)`,
    opacity = zVals[i] < Math.abs(zSpacing) / 1.8 ? 1 : 0
    
    frame.setAttribute('style', `transform: ${transform}; opacity: ${opacity};`);
  });

  if (top + window.innerHeight >= lastFrameTop + lastFrameHeight) {
    window.scrollTo(0, lastFrameTop);
  }
};

window.scrollTo(0, 1);

let soundbutton = document.querySelector('.soundbutton'),
    audio = document.querySelector('.audio')

soundbutton.addEventListener('click', e =>{
  soundbutton.classList.toggle('paused')
  audio.paused ? audio.play() : audio.pause()
})

window.onfocus = function(){
  soundbutton.classList.contains('paused') ? audio.pause() : audio.play()
}

window.onblur = function() {
  audio.pause()
}
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