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node_modules/vant/es/date-picker/DatePicker.mjs

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+import { ref, watch, computed, defineComponent, mergeProps as _mergeProps, createVNode as _createVNode } from "vue";
+import { pick, extend, isDate, isSameValue, createNamespace } from "../utils/index.mjs";
+import { genOptions, sharedProps, getMonthEndDay, pickerInheritKeys, formatValueRange } from "./utils.mjs";
+import { useExpose } from "../composables/use-expose.mjs";
+import { Picker } from "../picker/index.mjs";
+const currentYear = (/* @__PURE__ */ new Date()).getFullYear();
+const [name] = createNamespace("date-picker");
+const datePickerProps = extend({}, sharedProps, {
+  columnsType: {
+    type: Array,
+    default: () => ["year", "month", "day"]
+  },
+  minDate: {
+    type: Date,
+    default: () => new Date(currentYear - 10, 0, 1),
+    validator: isDate
+  },
+  maxDate: {
+    type: Date,
+    default: () => new Date(currentYear + 10, 11, 31),
+    validator: isDate
+  }
+});
+var stdin_default = defineComponent({
+  name,
+  props: datePickerProps,
+  emits: ["confirm", "cancel", "change", "update:modelValue"],
+  setup(props, {
+    emit,
+    slots
+  }) {
+    const currentValues = ref(props.modelValue);
+    const updatedByExternalSources = ref(false);
+    const pickerRef = ref();
+    const computedValues = computed(() => updatedByExternalSources.value ? props.modelValue : currentValues.value);
+    const isMinYear = (year) => year === props.minDate.getFullYear();
+    const isMaxYear = (year) => year === props.maxDate.getFullYear();
+    const isMinMonth = (month) => month === props.minDate.getMonth() + 1;
+    const isMaxMonth = (month) => month === props.maxDate.getMonth() + 1;
+    const getValue = (type) => {
+      const {
+        minDate,
+        columnsType
+      } = props;
+      const index = columnsType.indexOf(type);
+      const value = computedValues.value[index];
+      if (value) {
+        return +value;
+      }
+      switch (type) {
+        case "year":
+          return minDate.getFullYear();
+        case "month":
+          return minDate.getMonth() + 1;
+        case "day":
+          return minDate.getDate();
+      }
+    };
+    const genYearOptions = () => {
+      const minYear = props.minDate.getFullYear();
+      const maxYear = props.maxDate.getFullYear();
+      return genOptions(minYear, maxYear, "year", props.formatter, props.filter, computedValues.value);
+    };
+    const genMonthOptions = () => {
+      const year = getValue("year");
+      const minMonth = isMinYear(year) ? props.minDate.getMonth() + 1 : 1;
+      const maxMonth = isMaxYear(year) ? props.maxDate.getMonth() + 1 : 12;
+      return genOptions(minMonth, maxMonth, "month", props.formatter, props.filter, computedValues.value);
+    };
+    const genDayOptions = () => {
+      const year = getValue("year");
+      const month = getValue("month");
+      const minDate = isMinYear(year) && isMinMonth(month) ? props.minDate.getDate() : 1;
+      const maxDate = isMaxYear(year) && isMaxMonth(month) ? props.maxDate.getDate() : getMonthEndDay(year, month);
+      return genOptions(minDate, maxDate, "day", props.formatter, props.filter, computedValues.value);
+    };
+    const confirm = () => {
+      var _a;
+      return (_a = pickerRef.value) == null ? void 0 : _a.confirm();
+    };
+    const getSelectedDate = () => currentValues.value;
+    const columns = computed(() => props.columnsType.map((type) => {
+      switch (type) {
+        case "year":
+          return genYearOptions();
+        case "month":
+          return genMonthOptions();
+        case "day":
+          return genDayOptions();
+        default:
+          if (process.env.NODE_ENV !== "production") {
+            throw new Error(`[Vant] DatePicker: unsupported columns type: ${type}`);
+          }
+          return [];
+      }
+    }));
+    watch(currentValues, (newValues) => {
+      if (!isSameValue(newValues, props.modelValue)) {
+        emit("update:modelValue", newValues);
+      }
+    });
+    watch(() => props.modelValue, (newValues, oldValues) => {
+      updatedByExternalSources.value = isSameValue(oldValues, currentValues.value);
+      newValues = formatValueRange(newValues, columns.value);
+      if (!isSameValue(newValues, currentValues.value)) {
+        currentValues.value = newValues;
+      }
+      updatedByExternalSources.value = false;
+    }, {
+      immediate: true
+    });
+    const onChange = (...args) => emit("change", ...args);
+    const onCancel = (...args) => emit("cancel", ...args);
+    const onConfirm = (...args) => emit("confirm", ...args);
+    useExpose({
+      confirm,
+      getSelectedDate
+    });
+    return () => _createVNode(Picker, _mergeProps({
+      "ref": pickerRef,
+      "modelValue": currentValues.value,
+      "onUpdate:modelValue": ($event) => currentValues.value = $event,
+      "columns": columns.value,
+      "onChange": onChange,
+      "onCancel": onCancel,
+      "onConfirm": onConfirm
+    }, pick(props, pickerInheritKeys)), slots);
+  }
+});
+export {
+  datePickerProps,
+  stdin_default as default
+};