vant

utils/dist/tab/index.js

@@ -0,0 +1,56 @@
+import { VantComponent } from '../common/component';
+VantComponent({
+    relation: {
+        name: 'tabs',
+        type: 'ancestor',
+        linked(target) {
+            this.parent = target;
+        },
+        unlinked() {
+            this.parent = null;
+        }
+    },
+    props: {
+        dot: Boolean,
+        info: null,
+        title: String,
+        disabled: Boolean,
+        titleStyle: String,
+        name: {
+            type: [Number, String],
+            value: '',
+        }
+    },
+    data: {
+        active: false
+    },
+    watch: {
+        title: 'update',
+        disabled: 'update',
+        dot: 'update',
+        info: 'update',
+        titleStyle: 'update'
+    },
+    methods: {
+        getComputedName() {
+            if (this.data.name !== '') {
+                return this.data.name;
+            }
+            return this.index;
+        },
+        updateRender(active, parent) {
+            const { data: parentData } = parent;
+            this.inited = this.inited || active;
+            this.setData({
+                active,
+                shouldRender: this.inited || !parentData.lazyRender,
+                shouldShow: active || parentData.animated
+            });
+        },
+        update() {
+            if (this.parent) {
+                this.parent.updateTabs();
+            }
+        }
+    }
+});