商品详情页如果是预售商品则把立即购买按钮置灰不能点击

@@ -479,6 +479,8 @@ module.exports = class extends global.yoho.BaseModel {
 
         dest.productSkn = origin.product_skn;
         dest.goodsName = origin.product_name;
+        dest.startSaleTime = origin.startSaleTime;
+        dest.startSaleTimeStr = origin.startSaleTimeStr;
 
         // 线下店商品展示限制
         dest.storeGood = origin.store_show_status === 3 || origin.store_show_status === 4;

@@ -61,8 +61,13 @@
             </div>
         </div>
         <div class="btn-wrap">
+
             {{#if @root.buttonText.double}}
-                <button id="chose-btn-buynow" class="btn btn-sure-buynow">立即购买</button>
+                {{#if @root.startSaleTimeStr}}
+                    <button disabled="disabled" class="btn btn-cannot-buynow">立即购买</button>
+                {{else}}
+                    <button id="chose-btn-buynow" class="btn btn-sure-buynow">立即购买</button>
+                {{/if}}
                 <button id="chose-btn-sure" class="btn btn-sure-addtocart">加入购物车</button>
             {{^}}
                 <button id="chose-btn-sure" class="btn btn-sure">{{@root.buttonText.text}}</button>

@@ -392,6 +392,16 @@
             float: left;
         }
 
+        .btn-cannot-buynow {
+            width: 50%;
+            height: 80px;
+            border: none;
+            background: #b0b0b0;
+            color: #fff;
+            font-size: 32px;
+            float: left;
+        }
+
         .btn-sure-addtocart {
             width: 50%;
             height: 80px;