为创建新货源功能的下拉框添加双击选择功能

pages/seller/index.js

@@ -2903,6 +2903,29 @@ Page({
     });
   },
   
+  // 双击检测变量
+  lastTapTime: {},
+  tapCount: {},
+  
+  // 通用双击检测函数
+  handleDoubleTap: function(e, type, callback) {
+    const currentTime = Date.now();
+    const tapKey = `${type}-${e.currentTarget.dataset.index}`;
+    const lastTap = this.lastTapTime[tapKey] || 0;
+    const tapInterval = currentTime - lastTap;
+    
+    if (tapInterval < 300 && tapInterval > 0) {
+      // 双击事件触发，执行确认选择
+      callback();
+    } else {
+      // 单击事件触发，执行选择操作
+      this.lastTapTime[tapKey] = currentTime;
+      setTimeout(() => {
+        delete this.lastTapTime[tapKey];
+      }, 300);
+    }
+  },
+  
   // 弹窗中选择规格
   onModalSpecSelect: function (e) {
     const index = e.currentTarget.dataset.index;
@@ -2911,6 +2934,11 @@ Page({
       selectedModalSpecIndex: index,
       modalSpecSearchKeyword: selectedSpec // 自动填充搜索框为当前选择的规格
     });
+    
+    // 检测双击
+    this.handleDoubleTap(e, 'spec', () => {
+      this.confirmSpecSelection();
+    });
   },
   
   // 确认规格选择
@@ -3401,6 +3429,11 @@ Page({
     this.setData({
       selectedNameIndex: index
     });
+    
+    // 检测双击
+    this.handleDoubleTap(e, 'name', () => {
+      this.confirmNameSelection();
+    });
   },
   
   confirmNameSelection() {
@@ -3477,6 +3510,11 @@ Page({
     this.setData({
       selectedYolkIndex: index
     });
+    
+    // 检测双击
+    this.handleDoubleTap(e, 'yolk', () => {
+      this.confirmYolkSelection();
+    });
   },
   
   confirmYolkSelection() {