主题
useMediaControls
audio 和 video 元素的反应式媒体控件
¥Reactive media controls for both audio and video elements
示例
00:00
00:00 / 00:00
Off
Loop
2x
1x
currentTime: 0
duration: 0
waiting: false
seeking: false
ended: false
stalled: false
buffered: []
playing: false
rate: 1
volume: 1
muted: false
tracks: []
selectedTrack: -1
isPictureInPicture: false
用法
¥Usage
基本用法
¥Basic Usage
vue
<script setup lang="ts">
import { onMounted, ref } from 'vue'
import { useMediaControls } from '@vueuse/core'
const video = ref()
const { playing, currentTime, duration, volume } = useMediaControls(video, {
src: 'video.mp4',
})
// Change initial media properties
onMounted(() => {
volume.value = 0.5
currentTime.value = 60
})
</script>
<template>
<video ref="video" />
<button @click="playing = !playing">
Play / Pause
</button>
<span>{{ currentTime }} / {{ duration }}</span>
</template>提供字幕、副标题等...
¥Providing Captions, Subtitles, etc...
你可以在 useMediaControls 函数的 tracks 选项中提供字幕、副标题等。该函数将返回一个轨道数组以及两个用于控制它们的函数：enableTrack、disableTrack 和 selectedTrack。使用这些你可以管理当前选定的曲目。如果没有选定的曲目，selectedTrack 将是 -1。
¥You can provide captions, subtitles, etc in the tracks options of the useMediaControls function. The function will return an array of tracks along with two functions for controlling them, enableTrack, disableTrack, and selectedTrack. Using these you can manage the currently selected track. selectedTrack will be -1 if there is no selected track.
vue
<script setup lang="ts">
import { useMediaControls } from '@vueuse/core'
import { ref } from 'vue'
const video = ref()
const {
tracks,
enableTrack
} = useMediaControls(video, {
src: 'video.mp4',
tracks: [
{
default: true,
src: './subtitles.vtt',
kind: 'subtitles',
label: 'English',
srcLang: 'en',
},
]
})
</script>
<template>
<video ref="video" />
<button v-for="track in tracks" :key="track.id" @click="enableTrack(track)">
{{ track.label }}
</button>
</template>类型声明
显示类型声明
typescript
/**
* Many of the jsdoc definitions here are modified version of the
* documentation from MDN(https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement)
*/
export interface UseMediaSource {
/**
* The source url for the media
*/
src: string
/**
* The media codec type
*/
type?: string
}
export interface UseMediaTextTrackSource {
/**
* Indicates that the track should be enabled unless the user's preferences indicate
* that another track is more appropriate
*/
default?: boolean
/**
* How the text track is meant to be used. If omitted the default kind is subtitles.
*/
kind: TextTrackKind
/**
* A user-readable title of the text track which is used by the browser
* when listing available text tracks.
*/
label: string
/**
* Address of the track (.vtt file). Must be a valid URL. This attribute
* must be specified and its URL value must have the same origin as the document
*/
src: string
/**
* Language of the track text data. It must be a valid BCP 47 language tag.
* If the kind attribute is set to subtitles, then srclang must be defined.
*/
srcLang: string
}
interface UseMediaControlsOptions extends ConfigurableDocument {
/**
* The source for the media, may either be a string, a `UseMediaSource` object, or a list
* of `UseMediaSource` objects.
*/
src?: MaybeRefOrGetter<string | UseMediaSource | UseMediaSource[]>
/**
* A list of text tracks for the media
*/
tracks?: MaybeRefOrGetter<UseMediaTextTrackSource[]>
}
export interface UseMediaTextTrack {
/**
* The index of the text track
*/
id: number
/**
* The text track label
*/
label: string
/**
* Language of the track text data. It must be a valid BCP 47 language tag.
* If the kind attribute is set to subtitles, then srclang must be defined.
*/
language: string
/**
* Specifies the display mode of the text track, either `disabled`,
* `hidden`, or `showing`
*/
mode: TextTrackMode
/**
* How the text track is meant to be used. If omitted the default kind is subtitles.
*/
kind: TextTrackKind
/**
* Indicates the track's in-band metadata track dispatch type.
*/
inBandMetadataTrackDispatchType: string
/**
* A list of text track cues
*/
cues: TextTrackCueList | null
/**
* A list of active text track cues
*/
activeCues: TextTrackCueList | null
}
export declare function useMediaControls(
target: MaybeRef<HTMLMediaElement | null | undefined>,
options?: UseMediaControlsOptions,
): {
currentTime: Ref<number>
duration: Ref<number>
waiting: Ref<boolean>
seeking: Ref<boolean>
ended: Ref<boolean>
stalled: Ref<boolean>
buffered: Ref<[number, number][]>
playing: Ref<boolean>
rate: Ref<number>
volume: Ref<number>
muted: Ref<boolean>
tracks: Ref<
{
id: number
label: string
language: string
mode: TextTrackMode
kind: TextTrackKind
inBandMetadataTrackDispatchType: string
cues: {
[x: number]: {
endTime: number
id: string
onenter: ((this: TextTrackCue, ev: Event) => any) | null
onexit: ((this: TextTrackCue, ev: Event) => any) | null
pauseOnExit: boolean
startTime: number
readonly track: {
readonly activeCues: any | null
readonly cues: any | null
readonly id: string
readonly inBandMetadataTrackDispatchType: string
readonly kind: TextTrackKind
readonly label: string
readonly language: string
mode: TextTrackMode
oncuechange: ((this: TextTrack, ev: Event) => any) | null
addCue: (cue: TextTrackCue) => void
removeCue: (cue: TextTrackCue) => void
addEventListener: {
<K extends keyof TextTrackEventMap>(
type: K,
listener: (this: TextTrack, ev: TextTrackEventMap[K]) => any,
options?: boolean | AddEventListenerOptions,
): void
(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | AddEventListenerOptions,
): void
}
removeEventListener: {
<K extends keyof TextTrackEventMap>(
type: K,
listener: (this: TextTrack, ev: TextTrackEventMap[K]) => any,
options?: boolean | EventListenerOptions,
): void
(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | EventListenerOptions,
): void
}
dispatchEvent: {
(event: Event): boolean
(event: Event): boolean
}
} | null
addEventListener: {
<K extends keyof TextTrackCueEventMap>(
type: K,
listener: (
this: TextTrackCue,
ev: TextTrackCueEventMap[K],
) => any,
options?: boolean | AddEventListenerOptions,
): void
(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | AddEventListenerOptions,
): void
}
removeEventListener: {
<K extends keyof TextTrackCueEventMap>(
type: K,
listener: (
this: TextTrackCue,
ev: TextTrackCueEventMap[K],
) => any,
options?: boolean | EventListenerOptions,
): void
(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | EventListenerOptions,
): void
}
dispatchEvent: {
(event: Event): boolean
(event: Event): boolean
}
}
readonly length: number
getCueById: (id: string) => TextTrackCue | null
[Symbol.iterator]: () => IterableIterator<TextTrackCue>
} | null
activeCues: {
[x: number]: {
endTime: number
id: string
onenter: ((this: TextTrackCue, ev: Event) => any) | null
onexit: ((this: TextTrackCue, ev: Event) => any) | null
pauseOnExit: boolean
startTime: number
readonly track: {
readonly activeCues: any | null
readonly cues: any | null
readonly id: string
readonly inBandMetadataTrackDispatchType: string
readonly kind: TextTrackKind
readonly label: string
readonly language: string
mode: TextTrackMode
oncuechange: ((this: TextTrack, ev: Event) => any) | null
addCue: (cue: TextTrackCue) => void
removeCue: (cue: TextTrackCue) => void
addEventListener: {
<K extends keyof TextTrackEventMap>(
type: K,
listener: (this: TextTrack, ev: TextTrackEventMap[K]) => any,
options?: boolean | AddEventListenerOptions,
): void
(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | AddEventListenerOptions,
): void
}
removeEventListener: {
<K extends keyof TextTrackEventMap>(
type: K,
listener: (this: TextTrack, ev: TextTrackEventMap[K]) => any,
options?: boolean | EventListenerOptions,
): void
(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | EventListenerOptions,
): void
}
dispatchEvent: {
(event: Event): boolean
(event: Event): boolean
}
} | null
addEventListener: {
<K extends keyof TextTrackCueEventMap>(
type: K,
listener: (
this: TextTrackCue,
ev: TextTrackCueEventMap[K],
) => any,
options?: boolean | AddEventListenerOptions,
): void
(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | AddEventListenerOptions,
): void
}
removeEventListener: {
<K extends keyof TextTrackCueEventMap>(
type: K,
listener: (
this: TextTrackCue,
ev: TextTrackCueEventMap[K],
) => any,
options?: boolean | EventListenerOptions,
): void
(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | EventListenerOptions,
): void
}
dispatchEvent: {
(event: Event): boolean
(event: Event): boolean
}
}
readonly length: number
getCueById: (id: string) => TextTrackCue | null
[Symbol.iterator]: () => IterableIterator<TextTrackCue>
} | null
}[]
>
selectedTrack: Ref<number>
enableTrack: (
track: number | UseMediaTextTrack,
disableTracks?: boolean,
) => void
disableTrack: (track?: number | UseMediaTextTrack) => void
supportsPictureInPicture: boolean | undefined
togglePictureInPicture: () => Promise<unknown>
isPictureInPicture: Ref<boolean>
onSourceError: EventHookOn<Event>
}
export type UseMediaControlsReturn = ReturnType<typeof useMediaControls>