refactor range input to composition api

packages/client/src/components/form/range.vue

@@ -16,105 +16,82 @@
 </div>
 </template>
 
-<script lang="ts">
-import { computed, defineAsyncComponent, defineComponent, onMounted, onUnmounted, ref, watch } from 'vue';
+<script lang="ts" setup>
+import { computed, defineAsyncComponent, onMounted, onUnmounted, ref, watch } from 'vue';
 import * as os from '@/os';
 
-export default defineComponent({
-	props: {
-		modelValue: {
-			type: Number,
-			required: false,
-			default: 0,
-		},
-		disabled: {
-			type: Boolean,
-			required: false,
-			default: false,
-		},
-		min: {
-			type: Number,
-			required: false,
-			default: 0,
-		},
-		max: {
-			type: Number,
-			required: false,
-			default: 100,
-		},
-		step: {
-			type: Number,
-			required: false,
-			default: 1,
-		},
-		autofocus: {
-			type: Boolean,
-			required: false,
-		},
-		textConverter: {
-			type: Function,
-			required: false,
-			default: (v) => v.toString(),
-		},
-	},
+const props = withDefaults(defineProps<{
+	modelValue: number;
+	disabled?: boolean;
+	min: number;
+	max: number;
+	step?: number;
+	textConverter?: (value: number) => string,
+}>(), {
+	step: 1,
+	textConverter: (v) => v.toString(),
+});
 
-	setup(props, context) {
-		const containerEl = ref<HTMLElement>();
-		const thumbEl = ref<HTMLElement>();
+const emit = defineEmits<{
+	(ev: 'update:modelValue', value: number): void;
+}>();
 
-		const rawValue = ref((props.modelValue - props.min) / (props.max - props.min));
-		const steppedRawValue = computed(() => {
+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(() => {
+});
+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;
 	}
-		});
+});
 
-		const thumbWidth = computed(() => {
+const thumbWidth = computed(() => {
 	if (thumbEl.value == null) return 0;
 	return thumbEl.value!.offsetWidth;
-		});
-		const thumbPosition = ref(0);
-		const calcThumbPosition = () => {
+});
+const thumbPosition = ref(0);
+const calcThumbPosition = () => {
 	if (containerEl.value == null) {
 		thumbPosition.value = 0;
 	} else {
 		thumbPosition.value = (containerEl.value.offsetWidth - thumbWidth.value) * steppedRawValue.value;
 	}
-		};
-		watch([steppedRawValue, containerEl], calcThumbPosition);
+};
+watch([steppedRawValue, containerEl], calcThumbPosition);
 
-		let ro: ResizeObserver | undefined;
+let ro: ResizeObserver | undefined;
 
-		onMounted(() => {
+onMounted(() => {
 	ro = new ResizeObserver((entries, observer) => {
 		calcThumbPosition();
 	});
 	ro.observe(containerEl.value);
-		});
+});
 
-		onUnmounted(() => {
+onUnmounted(() => {
 	if (ro) ro.disconnect();
-		});
+});
 
-		const steps = computed(() => {
+const steps = computed(() => {
 	if (props.step) {
 		return (props.max - props.min) / props.step;
 	} else {
 		return 0;
 	}
-		});
+});
 
-		const onMousedown = (ev: MouseEvent | TouchEvent) => {
+const onMousedown = (ev: MouseEvent | TouchEvent) => {
 	ev.preventDefault();
 
 	const tooltipShowing = ref(true);
@@ -150,7 +127,7 @@ export default defineComponent({
 
 		// 値が変わってたら通知
 		if (beforeValue !== finalValue.value) {
-					context.emit('update:modelValue', finalValue.value);
+			emit('update:modelValue', finalValue.value);
 		}
 	};
 
@@ -158,20 +135,7 @@ export default defineComponent({
 	window.addEventListener('touchmove', onDrag);
 	window.addEventListener('mouseup', onMouseup, { once: true });
 	window.addEventListener('touchend', onMouseup, { once: true });
-		};
-
-		return {
-			rawValue,
-			finalValue,
-			steppedRawValue,
-			onMousedown,
-			containerEl,
-			thumbEl,
-			thumbPosition,
-			steps,
-		};
-	},
-});
+};
 </script>
 
 <style lang="scss" scoped>