elearning/Frontend-Learner/components/classroom/VideoPlayer.vue

142 lines
5 KiB
Vue

<script setup lang="ts">
/**
* @file VideoPlayer.vue
* @description Video Player Component with custom controls provided by design
*/
const props = defineProps<{
src: string;
initialSeekTime?: number;
}>();
const emit = defineEmits<{
(e: 'timeupdate', currentTime: number, duration: number): void;
(e: 'ended'): void;
(e: 'loadedmetadata'): void;
}>();
const videoRef = ref<HTMLVideoElement | null>(null);
const isPlaying = ref(false);
const videoProgress = ref(0);
const currentTime = ref(0);
const duration = ref(0);
// Media Prefs
const { volume, muted: isMuted, setVolume, setMuted, applyTo } = useMediaPrefs();
const volumeIcon = computed(() => {
if (isMuted.value || volume.value === 0) return 'volume_off';
if (volume.value < 0.5) return 'volume_down';
return 'volume_up';
});
const formatTime = (time: number) => {
const m = Math.floor(time / 60);
const s = Math.floor(time % 60);
return `${m}:${s.toString().padStart(2, '0')}`;
};
const currentTimeDisplay = computed(() => formatTime(currentTime.value));
const durationDisplay = computed(() => formatTime(duration.value || 0));
const togglePlay = () => {
if (!videoRef.value) return;
if (isPlaying.value) videoRef.value.pause();
else videoRef.value.play();
isPlaying.value = !isPlaying.value;
};
const handleTimeUpdate = () => {
if (!videoRef.value) return;
currentTime.value = videoRef.value.currentTime;
duration.value = videoRef.value.duration;
videoProgress.value = (currentTime.value / duration.value) * 100;
emit('timeupdate', currentTime.value, duration.value);
};
const handleLoadedMetadata = () => {
if (videoRef.value) {
applyTo(videoRef.value);
if (props.initialSeekTime && props.initialSeekTime > 0) {
const seekTo = Math.min(props.initialSeekTime, videoRef.value.duration || Infinity)
videoRef.value.currentTime = seekTo;
}
}
emit('loadedmetadata');
};
const handleEnded = () => {
isPlaying.value = false;
emit('ended');
};
const seek = (e: MouseEvent) => {
if (!videoRef.value) return;
const rect = (e.currentTarget as HTMLElement).getBoundingClientRect();
const percent = (e.clientX - rect.left) / rect.width;
videoRef.value.currentTime = percent * videoRef.value.duration;
};
const handleToggleMute = () => {
setMuted(!isMuted.value);
};
const handleVolumeChange = (val: any) => {
const newVol = typeof val === 'number' ? val : Number(val.target.value);
setVolume(newVol);
};
// Expose video ref for parent to control if needed
defineExpose({
videoRef,
pause: () => videoRef.value?.pause(),
currentTime: () => videoRef.value?.currentTime || 0
});
// Watch for volume/mute changes to apply to video element
watch([volume, isMuted], () => {
if (videoRef.value) applyTo(videoRef.value);
});
</script>
<template>
<div class="bg-black rounded-xl overflow-hidden shadow-2xl mb-6 aspect-video relative group ring-1 ring-white/10">
<video
ref="videoRef"
:src="src"
class="w-full h-full object-contain"
@click="togglePlay"
@timeupdate="handleTimeUpdate"
@loadedmetadata="handleLoadedMetadata"
@ended="handleEnded"
/>
<!-- Custom Controls Overlay -->
<div class="absolute bottom-0 left-0 right-0 p-4 bg-gradient-to-t from-black/80 via-black/40 to-transparent transition-opacity opacity-0 group-hover:opacity-100">
<div class="flex items-center gap-4 text-white">
<q-btn flat round dense :icon="isPlaying ? 'pause' : 'play_arrow'" @click.stop="togglePlay" />
<div class="relative flex-grow h-1.5 bg-white/20 rounded-full cursor-pointer group/progress overflow-hidden" @click="seek">
<div class="absolute top-0 left-0 h-full bg-blue-500 rounded-full group-hover/progress:bg-blue-400 transition-all shadow-[0_0_10px_rgba(59,130,246,0.5)]" :style="{ width: videoProgress + '%' }"></div>
</div>
<span class="text-xs font-mono font-medium opacity-90">{{ currentTimeDisplay }} / {{ durationDisplay }}</span>
<!-- Volume Control -->
<div class="flex items-center gap-2 group/volume">
<q-btn flat round dense :icon="volumeIcon" @click.stop="handleToggleMute" color="white" />
<div class="w-0 group-hover/volume:w-20 overflow-hidden transition-all duration-300 flex items-center">
<input
type="range"
min="0"
max="1"
step="0.1"
:value="volume"
@input="handleVolumeChange"
class="w-20 h-1 bg-white/30 rounded-lg appearance-none cursor-pointer accent-blue-500"
/>
</div>
</div>
</div>
</div>
</div>
</template>