You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
svelte/site/content/examples/05-bindings/09-media-elements/App.svelte

132 lines
2.7 KiB

<script>
// These values are bound to properties of the video
let time = 0;
let duration;
let paused = true;
let showControls = true;
let showControlsTimeout;
function handleMousemove(e) {
// Make the controls visible, but fade out after
// 2.5 seconds of inactivity
clearTimeout(showControlsTimeout);
showControlsTimeout = setTimeout(() => showControls = false, 2500);
showControls = true;
if (!(e.buttons & 1)) return; // mouse not down
if (!duration) return; // video not loaded yet
const { left, right } = this.getBoundingClientRect();
time = duration * (e.clientX - left) / (right - left);
}
function handleMousedown(e) {
// we can't rely on the built-in click event, because it fires
// after a drag — we have to listen for clicks ourselves
function handleMouseup() {
if (paused) e.target.play();
else e.target.pause();
cancel();
}
function cancel() {
e.target.removeEventListener('mouseup', handleMouseup);
}
e.target.addEventListener('mouseup', handleMouseup);
setTimeout(cancel, 200);
}
function format(seconds) {
if (isNaN(seconds)) return '...';
const minutes = Math.floor(seconds / 60);
seconds = Math.floor(seconds % 60);
if (seconds < 10) seconds = '0' + seconds;
return `${minutes}:${seconds}`;
}
</script>
<style>
div {
position: relative;
}
.controls {
position: absolute;
top: 0;
width: 100%;
transition: opacity 1s;
}
.info {
display: flex;
width: 100%;
justify-content: space-between;
}
span {
padding: 0.2em 0.5em;
color: white;
text-shadow: 0 0 8px black;
font-size: 1.4em;
opacity: 0.7;
}
.time {
width: 3em;
}
.time:last-child { text-align: right }
progress {
display: block;
width: 100%;
height: 10px;
-webkit-appearance: none;
appearance: none;
}
progress::-webkit-progress-bar {
background-color: rgba(0,0,0,0.2);
}
progress::-webkit-progress-value {
background-color: rgba(255,255,255,0.6);
}
video {
width: 100%;
}
</style>
<h1>Caminandes: Llamigos</h1>
<p>From <a href="https://cloud.blender.org/open-projects">Blender Open Projects</a>. CC-BY</p>
<div>
<video
poster="https://sveltejs.github.io/assets/caminandes-llamigos.jpg"
src="https://sveltejs.github.io/assets/caminandes-llamigos.mp4"
on:mousemove={handleMousemove}
on:mousedown={handleMousedown}
bind:currentTime={time}
bind:duration
bind:paused>
<track kind="captions"/>
</video>
<div class="controls" style="opacity: {duration && showControls ? 1 : 0}">
<progress value="{(time / duration) || 0}"/>
<div class="info">
<span class="time">{format(time)}</span>
<span>click anywhere to {paused ? 'play' : 'pause'} / drag to seek</span>
<span class="time">{format(duration)}</span>
</div>
</div>
</div>