hippofish/packages/frontend/src/components/MkRange.vue

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<template>
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<div class="timctyfi" :class="{ disabled, easing }">
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<div class="label"><slot name="label"></slot></div>
<div v-adaptive-border class="body">
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<div ref="containerEl" class="container">
<div class="track">
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<div class="highlight" :style="{ width: (steppedRawValue * 100) + '%' }"></div>
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</div>
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<div v-if="steps && showTicks" class="ticks">
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<div v-for="i in (steps + 1)" class="tick" :style="{ left: (((i - 1) / steps) * 100) + '%' }"></div>
</div>
<div ref="thumbEl" v-tooltip="textConverter(finalValue)" class="thumb" :style="{ left: thumbPosition + 'px' }" @mousedown="onMousedown" @touchstart="onMousedown"></div>
</div>
</div>
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<div class="caption"><slot name="caption"></slot></div>
</div>
</template>
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<script lang="ts" setup>
import { computed, defineAsyncComponent, onMounted, onUnmounted, ref, watch } from 'vue';
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import * as os from '@/os';
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const props = withDefaults(defineProps<{
modelValue: number;
disabled?: boolean;
min: number;
max: number;
step?: number;
textConverter?: (value: number) => string,
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showTicks?: boolean;
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easing?: boolean;
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}>(), {
step: 1,
textConverter: (v) => v.toString(),
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easing: false,
});
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const emit = defineEmits<{
(ev: 'update:modelValue', value: number): void;
}>();
const containerEl = ref<HTMLElement>();
const thumbEl = ref<HTMLElement>();
const rawValue = ref((props.modelValue - props.min) / (props.max - props.min));
const steppedRawValue = computed(() => {
if (props.step) {
const step = props.step / (props.max - props.min);
return (step * Math.round(rawValue.value / step));
} else {
return rawValue.value;
}
});
const finalValue = computed(() => {
if (Number.isInteger(props.step)) {
return Math.round((steppedRawValue.value * (props.max - props.min)) + props.min);
} else {
return (steppedRawValue.value * (props.max - props.min)) + props.min;
}
});
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const getThumbWidth = () => {
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if (thumbEl.value == null) return 0;
return thumbEl.value!.offsetWidth;
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};
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const thumbPosition = ref(0);
const calcThumbPosition = () => {
if (containerEl.value == null) {
thumbPosition.value = 0;
} else {
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thumbPosition.value = (containerEl.value.offsetWidth - getThumbWidth()) * steppedRawValue.value;
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}
};
watch([steppedRawValue, containerEl], calcThumbPosition);
let ro: ResizeObserver | undefined;
onMounted(() => {
ro = new ResizeObserver((entries, observer) => {
calcThumbPosition();
});
ro.observe(containerEl.value);
});
onUnmounted(() => {
if (ro) ro.disconnect();
});
const steps = computed(() => {
if (props.step) {
return (props.max - props.min) / props.step;
} else {
return 0;
}
});
const onMousedown = (ev: MouseEvent | TouchEvent) => {
ev.preventDefault();
const tooltipShowing = ref(true);
os.popup(defineAsyncComponent(() => import('@/components/MkTooltip.vue')), {
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showing: tooltipShowing,
text: computed(() => {
return props.textConverter(finalValue.value);
}),
targetElement: thumbEl,
}, {}, 'closed');
const style = document.createElement('style');
style.appendChild(document.createTextNode('* { cursor: grabbing !important; } body * { pointer-events: none !important; }'));
document.head.appendChild(style);
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const thumbWidth = getThumbWidth();
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const onDrag = (ev: MouseEvent | TouchEvent) => {
ev.preventDefault();
const containerRect = containerEl.value!.getBoundingClientRect();
const pointerX = ev.touches && ev.touches.length > 0 ? ev.touches[0].clientX : ev.clientX;
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const pointerPositionOnContainer = pointerX - (containerRect.left + (thumbWidth / 2));
rawValue.value = Math.min(1, Math.max(0, pointerPositionOnContainer / (containerEl.value!.offsetWidth - thumbWidth)));
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};
let beforeValue = finalValue.value;
const onMouseup = () => {
document.head.removeChild(style);
tooltipShowing.value = false;
window.removeEventListener('mousemove', onDrag);
window.removeEventListener('touchmove', onDrag);
window.removeEventListener('mouseup', onMouseup);
window.removeEventListener('touchend', onMouseup);
// 値が変わってたら通知
if (beforeValue !== finalValue.value) {
emit('update:modelValue', finalValue.value);
}
};
window.addEventListener('mousemove', onDrag);
window.addEventListener('touchmove', onDrag);
window.addEventListener('mouseup', onMouseup, { once: true });
window.addEventListener('touchend', onMouseup, { once: true });
};
</script>
<style lang="scss" scoped>
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@use "sass:math";
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.timctyfi {
position: relative;
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> .label {
font-size: 0.85em;
padding: 0 0 8px 0;
user-select: none;
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&:empty {
display: none;
}
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}
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> .caption {
font-size: 0.85em;
padding: 8px 0 0 0;
color: var(--fgTransparentWeak);
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&:empty {
display: none;
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}
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}
$thumbHeight: 20px;
$thumbWidth: 20px;
> .body {
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padding: 7px 12px;
background: var(--panel);
border: solid 1px var(--panel);
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border-radius: 6px;
> .container {
position: relative;
height: $thumbHeight;
> .track {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
width: calc(100% - #{$thumbWidth});
height: 3px;
background: rgba(0, 0, 0, 0.1);
border-radius: 999px;
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overflow: clip;
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> .highlight {
position: absolute;
top: 0;
left: 0;
height: 100%;
background: var(--accent);
opacity: 0.5;
}
}
> .ticks {
$tickWidth: 3px;
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
width: calc(100% - #{$thumbWidth});
> .tick {
position: absolute;
bottom: 0;
width: $tickWidth;
height: 3px;
margin-left: - math.div($tickWidth, 2);
background: var(--divider);
border-radius: 999px;
}
}
> .thumb {
position: absolute;
width: $thumbWidth;
height: $thumbHeight;
cursor: grab;
background: var(--accent);
border-radius: 999px;
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&:hover {
background: var(--accentLighten);
}
}
}
}
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&.easing {
> .body {
> .container {
> .track {
> .highlight {
transition: width 0.2s cubic-bezier(0,0,0,1);
}
}
> .thumb {
transition: left 0.2s cubic-bezier(0,0,0,1);
}
}
}
}
}
</style>