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node_modules/vant/es/dropdown-menu/DropdownMenu.mjs

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+import { ref, computed, defineComponent, createVNode as _createVNode } from "vue";
+import { isDef, truthProp, numericProp, windowHeight, makeStringProp, makeNumericProp, createNamespace, HAPTICS_FEEDBACK } from "../utils/index.mjs";
+import { useId } from "../composables/use-id.mjs";
+import { useExpose } from "../composables/use-expose.mjs";
+import { useRect, useChildren, useClickAway, useScrollParent, useEventListener } from "@vant/use";
+const [name, bem] = createNamespace("dropdown-menu");
+const dropdownMenuProps = {
+  overlay: truthProp,
+  zIndex: numericProp,
+  duration: makeNumericProp(0.2),
+  direction: makeStringProp("down"),
+  activeColor: String,
+  autoLocate: Boolean,
+  closeOnClickOutside: truthProp,
+  closeOnClickOverlay: truthProp,
+  swipeThreshold: numericProp
+};
+const DROPDOWN_KEY = Symbol(name);
+var stdin_default = defineComponent({
+  name,
+  props: dropdownMenuProps,
+  setup(props, {
+    slots
+  }) {
+    const id = useId();
+    const root = ref();
+    const barRef = ref();
+    const offset = ref(0);
+    const {
+      children,
+      linkChildren
+    } = useChildren(DROPDOWN_KEY);
+    const scrollParent = useScrollParent(root);
+    const opened = computed(() => children.some((item) => item.state.showWrapper));
+    const scrollable = computed(() => props.swipeThreshold && children.length > +props.swipeThreshold);
+    const barStyle = computed(() => {
+      if (opened.value && isDef(props.zIndex)) {
+        return {
+          zIndex: +props.zIndex + 1
+        };
+      }
+    });
+    const close = () => {
+      children.forEach((item) => {
+        item.toggle(false);
+      });
+    };
+    const onClickAway = () => {
+      if (props.closeOnClickOutside) {
+        close();
+      }
+    };
+    const updateOffset = () => {
+      if (barRef.value) {
+        const rect = useRect(barRef);
+        if (props.direction === "down") {
+          offset.value = rect.bottom;
+        } else {
+          offset.value = windowHeight.value - rect.top;
+        }
+      }
+    };
+    const onScroll = () => {
+      if (opened.value) {
+        updateOffset();
+      }
+    };
+    const toggleItem = (active) => {
+      children.forEach((item, index) => {
+        if (index === active) {
+          item.toggle();
+        } else if (item.state.showPopup) {
+          item.toggle(false, {
+            immediate: true
+          });
+        }
+      });
+    };
+    const renderTitle = (item, index) => {
+      const {
+        showPopup
+      } = item.state;
+      const {
+        disabled,
+        titleClass
+      } = item;
+      return _createVNode("div", {
+        "id": `${id}-${index}`,
+        "role": "button",
+        "tabindex": disabled ? void 0 : 0,
+        "data-allow-mismatch": "attribute",
+        "class": [bem("item", {
+          disabled,
+          grow: scrollable.value
+        }), {
+          [HAPTICS_FEEDBACK]: !disabled
+        }],
+        "onClick": () => {
+          if (!disabled) {
+            toggleItem(index);
+          }
+        }
+      }, [_createVNode("span", {
+        "class": [bem("title", {
+          down: showPopup === (props.direction === "down"),
+          active: showPopup
+        }), titleClass],
+        "style": {
+          color: showPopup ? props.activeColor : ""
+        }
+      }, [_createVNode("div", {
+        "class": "van-ellipsis"
+      }, [item.renderTitle()])])]);
+    };
+    useExpose({
+      close,
+      opened
+    });
+    linkChildren({
+      id,
+      props,
+      offset,
+      opened,
+      updateOffset
+    });
+    useClickAway(root, onClickAway);
+    useEventListener("scroll", onScroll, {
+      target: scrollParent,
+      passive: true
+    });
+    return () => {
+      var _a;
+      return _createVNode("div", {
+        "ref": root,
+        "class": bem()
+      }, [_createVNode("div", {
+        "ref": barRef,
+        "style": barStyle.value,
+        "class": bem("bar", {
+          opened: opened.value,
+          scrollable: scrollable.value
+        })
+      }, [children.map(renderTitle)]), (_a = slots.default) == null ? void 0 : _a.call(slots)]);
+    };
+  }
+});
+export {
+  DROPDOWN_KEY,
+  stdin_default as default,
+  dropdownMenuProps
+};