jiker-tcplayer/utils/keyEvent.js

tcplayer in Jiker

const keyEvent = function (player, autoPlay) {
	let playing = autoPlay;
	player.on('playing', () => {
		playing = true
	})
	player.on('pause', () => {
		playing = false
	})
	document.onkeydown = function () {
		let e = event || window.event || arguments.callee.caller.arguments[0]
		let durtion = Number((player.duration() / 60).toFixed(2))
		let currentTime = Number((player.currentTime() / 60).toFixed(2))
		let currentVolume = Number(player.volume().toFixed(2))
		if (e && e.keyCode === 32) { // 空格键
			// 暂停
			e.preventDefault()
			if (playing) { player.pause() } else player.play()
		}
		if (e && e.keyCode === 37) { // 左
			// 后退
			e.preventDefault()
			if (currentTime < durtion) {
				currentTime -= 0.25
				player.currentTime(currentTime * 60)
			} else {
				player.pause()
			}
		}
		if (e && e.keyCode === 39) { // 右
			// 快进
			e.preventDefault()
			if (currentTime < durtion) {
				currentTime += 0.25
				player.currentTime(currentTime * 60)
			} else {
				player.pause()
			}
		}
		if (e && e.keyCode === 38) { // 上
			// 音量加
			if (currentVolume < 1 && currentVolume >= 0) {
				currentVolume += 0.1
				player.volume(currentVolume)
			}
		}
		if (e && e.keyCode === 40) { // 下
			// 音量减
			if (currentVolume <= 1 && currentVolume > 0) {
				currentVolume -= 0.1
				player.volume(currentVolume)
			}
		}
	}
}

export default keyEvent