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perf(client): improve range control performance

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This commit is contained in:
syuilo
2022-06-30 12:42:35 +09:00
parent bffe6fb9bf
commit fa6eb0e0f2
1 changed files with 7 additions and 3 deletions
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10
packages/client/src/components/form/range.vue
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@@ -78,9 +78,6 @@ export default defineComponent({
return (steppedRawValue.value * (props.max - props.min)) + props.min; return (steppedRawValue.value * (props.max - props.min)) + props.min;
} }
}); });
watch(finalValue, () => {
context.emit('update:modelValue', finalValue.value);
});
const thumbWidth = computed(() => { const thumbWidth = computed(() => {
if (thumbEl.value == null) return 0; if (thumbEl.value == null) return 0;
@@ -141,6 +138,8 @@ export default defineComponent({
rawValue.value = Math.min(1, Math.max(0, pointerPositionOnContainer / (containerEl.value!.offsetWidth - thumbWidth.value))); rawValue.value = Math.min(1, Math.max(0, pointerPositionOnContainer / (containerEl.value!.offsetWidth - thumbWidth.value)));
}; };
let beforeValue = finalValue.value;
const onMouseup = () => { const onMouseup = () => {
document.head.removeChild(style); document.head.removeChild(style);
tooltipShowing.value = false; tooltipShowing.value = false;
@@ -148,6 +147,11 @@ export default defineComponent({
window.removeEventListener('touchmove', onDrag); window.removeEventListener('touchmove', onDrag);
window.removeEventListener('mouseup', onMouseup); window.removeEventListener('mouseup', onMouseup);
window.removeEventListener('touchend', onMouseup); window.removeEventListener('touchend', onMouseup);
// 値が変わってたら通知
if (beforeValue !== finalValue.value) {
context.emit('update:modelValue', finalValue.value);
}
}; };
window.addEventListener('mousemove', onDrag); window.addEventListener('mousemove', onDrag);