koel/resources/assets/js/components/ui/equalizer/Equalizer.vue
2024-07-06 17:44:57 +02:00

105 lines
3.3 KiB
Vue

<template>
<div class="select-none w-full flex flex-col" tabindex="0" @keydown.esc="close">
<header>
<SelectBox v-model="selectedPresetName" title="Select equalizer" class="!bg-black/30 !text-white">
<option disabled :value="null">Preset</option>
<option v-for="preset in presets" :key="preset.name!" :value="preset.name">{{ preset.name }}</option>
</SelectBox>
</header>
<main>
<div class="t-4 b-5 x-4 p-4 flex justify-between rounded-md bg-black/20">
<EqualizerBand ref="preampBandEl" v-model="preampGain" type="preamp" @commit="save">Preamp</EqualizerBand>
<span
class="text-sm h-[100px] w-[20px] flex flex-col justify-between items-center -ml-6 opacity-50"
>
<span class="leading-none text-k-text-primary">+20</span>
<span class="leading-none text-k-text-primary">0</span>
<span class="leading-none text-k-text-primary">-20</span>
</span>
<EqualizerBand
v-for="band in bands"
ref="filterBandEls"
:key="band.label"
v-model="band.db"
@commit="save"
@update:model-value="changeFilterGain(band)"
>
{{ band.label }}
</EqualizerBand>
</div>
</main>
<footer class="border-t-white/5">
<Btn @click.prevent="close">Close</Btn>
</footer>
</div>
</template>
<script lang="ts" setup>
import { nextTick, onMounted, ref, watch } from 'vue'
import { equalizerStore } from '@/stores'
import { audioService, Band } from '@/services'
import { equalizerPresets as presets } from '@/config'
import Btn from '@/components/ui/form/Btn.vue'
import SelectBox from '@/components/ui/form/SelectBox.vue'
import EqualizerBand from '@/components/ui/equalizer/EqualizerBand.vue'
const emit = defineEmits<{ (e: 'close'): void }>()
const bands = audioService.bands
const preampGain = ref(0)
const selectedPresetName = ref<string | null>(null)
const preampBandEl = ref<InstanceType<typeof EqualizerBand>>()
const filterBandEls = ref<InstanceType<typeof EqualizerBand>[]>()
// A flag to determine if the changes made to the bands are from loading a preset
// or by user customizing the sliders, in such a case the preset name should
// be set to null (customized).
let applyingPreset = false
watch(preampGain, value => {
audioService.changePreampGain(value)
if (!applyingPreset) selectedPresetName.value = null
})
const changeFilterGain = (band: Band) => {
audioService.changeFilterGain(band.node, band.db)
if (!applyingPreset) selectedPresetName.value = null
}
watch(selectedPresetName, value => {
if (value !== null) {
loadPreset(equalizerStore.getPresetByName(value) || presets[0])
}
save()
})
const loadPreset = async (preset: EqualizerPreset) => {
applyingPreset = true
preampGain.value = preset.preamp
preampBandEl.value.updateSliderValue(preset.preamp)
preset.gains.forEach((gain, i) => {
bands[i].db = gain
audioService.changeFilterGain(bands[i].node, gain)
filterBandEls.value![i].updateSliderValue(gain)
})
await nextTick()
applyingPreset = false
}
const save = () => equalizerStore.saveConfig(selectedPresetName.value, preampGain.value, bands.map(band => band.db))
const close = () => emit('close')
onMounted(() => {
const { name, preamp } = equalizerStore.getConfig()
selectedPresetName.value = name
preampGain.value = preamp
})
</script>