仿互站小程序

2020-06-09 16:17:23 +08:00
commit 7bfd53851e
321 changed files with 22890 additions and 0 deletions
--- a/vant/tree-select/index.js
+++ b/vant/tree-select/index.js
@@ -0,0 +1,64 @@
+(0, require("../common/component").VantComponent)({
+    classes: [ "main-item-class", "content-item-class", "main-active-class", "content-active-class", "main-disabled-class", "content-disabled-class" ],
+    props: {
+        items: Array,
+        mainActiveIndex: {
+            type: Number,
+            value: 0
+        },
+        activeId: {
+            type: [ Number, String ]
+        },
+        maxHeight: {
+            type: Number,
+            value: 300
+        }
+    },
+    data: {
+        subItems: [],
+        mainHeight: 0,
+        itemHeight: 0
+    },
+    watch: {
+        items: function() {
+            var t = this;
+            this.updateSubItems().then(function() {
+                t.updateMainHeight();
+            });
+        },
+        maxHeight: function() {
+            this.updateItemHeight(this.data.subItems), this.updateMainHeight();
+        },
+        mainActiveIndex: "updateSubItems"
+    },
+    methods: {
+        onSelectItem: function(t) {
+            var e = t.currentTarget.dataset.item;
+            e.disabled || this.$emit("click-item", e);
+        },
+        onClickNav: function(t) {
+            var e = t.currentTarget.dataset.index;
+            this.data.items[e].disabled || this.$emit("click-nav", {
+                index: e
+            });
+        },
+        updateSubItems: function() {
+            var t = this.data, e = (t.items[t.mainActiveIndex] || {}).children, i = void 0 === e ? [] : e;
+            return this.updateItemHeight(i), this.set({
+                subItems: i
+            });
+        },
+        updateMainHeight: function() {
+            var t = this.data, e = t.items, i = void 0 === e ? [] : e, a = t.subItems, s = void 0 === a ? [] : a, n = Math.max(44 * i.length, 44 * s.length);
+            this.set({
+                mainHeight: Math.min(n, this.data.maxHeight)
+            });
+        },
+        updateItemHeight: function(t) {
+            var e = Math.min(44 * t.length, this.data.maxHeight);
+            return this.set({
+                itemHeight: e
+            });
+        }
+    }
+});