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node_modules/@vant/weapp/dist/collapse-item/index.js

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+import { VantComponent } from '../common/component';
+import { useParent } from '../common/relation';
+import { setContentAnimate } from './animate';
+VantComponent({
+    classes: ['title-class', 'content-class'],
+    relation: useParent('collapse'),
+    props: {
+        size: String,
+        name: null,
+        title: null,
+        value: null,
+        icon: String,
+        label: String,
+        disabled: Boolean,
+        clickable: Boolean,
+        border: {
+            type: Boolean,
+            value: true,
+        },
+        isLink: {
+            type: Boolean,
+            value: true,
+        },
+    },
+    data: {
+        expanded: false,
+        parentBorder: true,
+    },
+    mounted() {
+        this.updateExpanded();
+        this.mounted = true;
+    },
+    methods: {
+        updateExpanded() {
+            if (!this.parent) {
+                return;
+            }
+            const { value, accordion, border } = this.parent.data;
+            const { children = [] } = this.parent;
+            const { name } = this.data;
+            const index = children.indexOf(this);
+            const currentName = name == null ? index : name;
+            const expanded = accordion
+                ? value === currentName
+                : (value || []).some((name) => name === currentName);
+            if (expanded !== this.data.expanded) {
+                setContentAnimate(this, expanded, this.mounted);
+            }
+            this.setData({ index, expanded, parentBorder: border });
+        },
+        onClick() {
+            if (this.data.disabled) {
+                return;
+            }
+            const { name, expanded } = this.data;
+            const index = this.parent.children.indexOf(this);
+            const currentName = name == null ? index : name;
+            this.parent.switch(currentName, !expanded);
+        },
+    },
+});