智慧宿舍系统小程序

wechat/miniprogram/node_modules/@vant/weapp/dist/mixins/page-scroll.js

@@ -0,0 +1,33 @@
+import { getCurrentPage } from '../common/utils';
+function onPageScroll(event) {
+  const { vanPageScroller = [] } = getCurrentPage();
+  vanPageScroller.forEach((scroller) => {
+    if (typeof scroller === 'function') {
+      // @ts-ignore
+      scroller(event);
+    }
+  });
+}
+export const pageScrollMixin = (scroller) =>
+  Behavior({
+    attached() {
+      const page = getCurrentPage();
+      if (Array.isArray(page.vanPageScroller)) {
+        page.vanPageScroller.push(scroller.bind(this));
+      } else {
+        page.vanPageScroller =
+          typeof page.onPageScroll === 'function'
+            ? [page.onPageScroll.bind(page), scroller.bind(this)]
+            : [scroller.bind(this)];
+      }
+      page.onPageScroll = onPageScroll;
+    },
+    detached() {
+      var _a;
+      const page = getCurrentPage();
+      page.vanPageScroller =
+        ((_a = page.vanPageScroller) === null || _a === void 0
+          ? void 0
+          : _a.filter((item) => item !== scroller)) || [];
+    },
+  });