[JavaScript 30일 챌린지] : 11일차

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const player = document.querySelector('.player');
const video = player.querySelector('.viewer');
const progress = player.querySelector('progress');
const progressBar = player.querySelector('.progress__filled');
const toggle = player.querySelector('.toggle');
const skipButtons = player.querySelectorAll('[data-skip]');
const ranges = player.querySelectorAll('.player__slider');

function togglePlay() {
    const method = video.paused ? 'play' : 'pause';
    video[method]();
}

function updateButton() {
    const icon = this.paused ? '►' : '❚ ❚';
    console.log(icon);
    toggle.textContent = icon;
    console.log('Update the button');
}

function skip() {
    video.currentTime += parseFloat(this.dataset.skip);
}

function handleRangeUpdate() {
    video[this.name] = this.value;
}

function handleProgress() {
    const percent = (video.currentTime / video.duration) * 100;
    progressBar.style.flexBasis = `${percent}%`;
}

function scrub(e) {
    const scrubTime = (e.offsetX / progress.offsetWidth) * video.duration;
    video.currentTime = scrubTime;
}

video.addEventListener('click', togglePlay);
video.addEventListener('play', updateButton);
video.addEventListener('pause', updateButton);
toggle.addEventListener('timeupdate', handleProgress);

toggle.addEventListener('click', togglePlay);
skipButtons.forEach(button => button.addEventListener('click', skip));
ranges.forEach(range => range.addEventListener('change', handleRangeUpdate));
ranges.forEach(range => range.addEventListener('mousemove',handleRangeUpdate));

let mousedown = false;
progress.addEventListener('click', scrub);
progress.addEventListener('mousemove', (e) =>mousedown && scrub(e));
progress.addEventListener('mousedown', () => mousedown = true);
progress.addEventListener('mouseup', () => mousedown = false);

비디오를 재생시키고 정지와 뒤로감기, 앞으로감기, 소리 줄이고 키우기, 재생 속도 조절 등 기능을 테스트 했다.