add-a-bug

@@ -19,6 +19,7 @@ let $ngc = $goodsContainer.children('.new-goods');
 let $sgc = $goodsContainer.children('.sale-goods');
 let $pgc = $goodsContainer.children('.price-goods');
 let $dgc = $goodsContainer.children('.discount-goods');
+let $container = $defaultgc; // 承载商品列表的容器
 let $listNav = $('#list-nav'); // 筛选项列表
 let $pre = $listNav.find('.active'); // 记录进入筛选前的active项，初始为选中项
 let $filterBox = $('.filter-box');
@@ -56,8 +57,12 @@ let navInfo = {
         end: false
     }
 };
+
 let navType = 'default'; // 目前激活的导航页面
 let defaultOpt = navInfo.default; // 默认参数
+let onSearching = false; // 是否正在搜索
+let isScrollLoad = false; // 是否是滚动加载
+let page = 0; // 页码
 
 /**
  * 处理筛选参数
@@ -76,40 +81,74 @@ function handleChoseFilter() {
  */
 function getGoodsList() {
     handleChoseFilter();
-    $.ajax({
-        type: 'GET',
-        url: location.protocol + '//m.yohobuy.com/product/search/search',
-        data: defaultOpt,
-        xhrFields: {
-            withCredentials: true
-        },
-        success: function(result) {
-            let $container = $defaultgc;
-
-            switch (navType) {
-                case 'new':
-                    $container = $ngc;
-                    break;
-                case 'price':
-                    $container = $pgc;
-                    break;
-                case 'discount':
-                    $container = $dgc;
-                    break;
-                case 'default':
-                    $container = $defaultgc;
-                    break;
-                case 'sale':
-                    $container = $sgc;
-                    break;
-                default:
-                    break;
+
+    if (!onSearching) {
+        onSearching = true;
+
+        $.ajax({
+            type: 'GET',
+            url: location.protocol + '//m.yohobuy.com/product/search/search',
+            data: defaultOpt,
+            xhrFields: {
+                withCredentials: true
+            },
+            beforeSend: function() {
+                $container.append('<div class="search-divide">正在加载...</div>');
+            },
+            success: function(result) {
+
+                switch (navType) {
+                    case 'new':
+                        $container = $ngc;
+                        break;
+                    case 'price':
+                        $container = $pgc;
+                        break;
+                    case 'discount':
+                        $container = $dgc;
+                        break;
+                    case 'default':
+                        $container = $defaultgc;
+                        break;
+                    case 'sale':
+                        $container = $sgc;
+                        break;
+                    default:
+                        break;
+                }
+
+                $('.search-divide').remove();
+                if (isScrollLoad) {
+                    $container.append(result);
+                } else {
+                    $container.html(result);
+                }
+                lazyLoad($container.find('.lazy'));
+                onSearching = false;
+            },
+            error: function() {
+                let $divide = $('.search-divide');
+
+                $divide.text('加载失败，点击重试');
+                $divide.one('click', function() {
+                    $divide.text('正在加载...');
+                    getGoodsList();
+                });
+                onSearching = false;
             }
+        });
+    }
+}
 
-            $container.html(result);
-            lazyLoad($container.find('.lazy'));
-        }
-    });
+/**
+ * 当scroll到1/2$goodsContainer高度后继续请求下一页数据
+ */
+function scrollHandler() {
+    if ($filterBox.is(':visible') && $(window).scrollTop() > $goodsContainer.height() * 0.5) {
+        isScrollLoad = true;
+        Object.assign(defaultOpt, {page: page++});
+        getGoodsList();
+    }
 }
 
 /**
@@ -139,7 +178,7 @@ function getFilter() {
     });
 }
 
-Tab.prototype.getgoodslist = getGoodsList; // 获取商品列表
+Tab.prototype.getgoodslist = getGoodsList; // 获取商品列表，点击全部商品 Tab 时获取
 Tab.prototype.filterhide = function() { // 隐藏筛选 TAB
     $filterBox.css('display', 'none');
 };
@@ -152,10 +191,11 @@ $listNav.bind('contextmenu', function() {
 });
 
 $listNav.on('touchend touchcancel', function(e) {
+    isScrollLoad = false;
+
     let $this = $(e.target).closest('li'); // 被点击的 Tab
     let $active;
     let nav;
-    let bpIdData = $(this).find('.buriedpoint').attr('data-bp-id') || '';
 
     if ($this.hasClass('filter')) {
 
@@ -254,9 +294,15 @@ $listNav.on('touchend touchcancel', function(e) {
         }
 
         if (nav.reload) {
-            $(document).trigger('shouldSendBpData', [bpIdData]);
-            getGoodsList({filtering: true});
+            getGoodsList();
         }
     }
 });
+
+// 页面打开直接加载筛选项
 getFilter();
+
+// srcoll to load more
+$(window).scroll(function() {
+    scrollHandler();
+});