chore(CountDown): use tsx

src/count-down/index.tsx

@@ -0,0 +1,68 @@
+import { watch, computed } from 'vue';
+
+// Utils
+import { createNamespace } from '../utils';
+import { parseFormat } from './utils';
+
+// Composition
+import { useCountDown } from '@vant/use';
+import { useExpose } from '../composition/use-expose';
+
+const [createComponent, bem] = createNamespace('count-down');
+
+export default createComponent({
+  props: {
+    millisecond: Boolean,
+    time: {
+      type: [Number, String],
+      default: 0,
+    },
+    format: {
+      type: String,
+      default: 'HH:mm:ss',
+    },
+    autoStart: {
+      type: Boolean,
+      default: true,
+    },
+  },
+
+  emits: ['change', 'finish'],
+
+  setup(props, { emit, slots }) {
+    const { start, pause, reset, current } = useCountDown({
+      time: +props.time,
+      millisecond: props.millisecond,
+      onChange(current) {
+        emit('change', current);
+      },
+      onFinish() {
+        emit('finish');
+      },
+    });
+
+    const timeText = computed(() => parseFormat(props.format, current.value));
+
+    const resetTime = () => {
+      reset(+props.time);
+
+      if (props.autoStart) {
+        start();
+      }
+    };
+
+    watch(() => props.time, resetTime, { immediate: true });
+
+    useExpose({
+      start,
+      pause,
+      reset: resetTime,
+    });
+
+    return () => (
+      <div class={bem()}>
+        {slots.default ? slots.default(current.value) : timeText.value}
+      </div>
+    );
+  },
+});