hotfix ufo 左滑

 <template>
-  <div class="product-item" :class="{['has-tip']: value.tip}">
+  <div class="product-item">
     <div class="item-content" :style="itemStyle" @touchstart="onTouchStart" @touchmove="onTouchMove" @touchend="onTouchEnd">
       <div class="tip" v-if="showTip">超出建议售价将被限制展示，建议下调至合理价格区间</div>
       <div class="info">
@@ -13,7 +13,7 @@
           <p class="low-price">当前最低价￥{{value.goodsInfo.leastPrice}}</p>
         </div>
         <div class="right">
-          <Button class="chg-price" @touchend.native="onChgPrice">调 价</Button>
+          <Button class="chg-price" @click.native="onChgPrice">调 价</Button>
         </div>
       </div>
     </div>
@@ -87,7 +87,7 @@ export default {
       const {clientX, clientY} = evt.touches[0];
       let distance = clientX - this.startX;
 
-      if (Math.abs(distance) > this.optionsWidth) {
+      if ((0 - distance) > this.optionsWidth) {
         distance = (0 - this.optionsWidth) + (distance + this.optionsWidth) * 0.1;
       }