feat: Toast分组管理 — group()/dismissGroup()

src/core.js

@@ -91,6 +91,7 @@ class Toast {
     this.paused = false;
     this.closing = false;
     this._cleanups = [];
+    this.group = opts.group || null;
   }
 
   _palette() {
@@ -1154,6 +1155,41 @@ const meToast = {
   count() {
     return this._toasts.size;
   },
+  
+  /**
+   * 创建Toast分组 — 返回一个自动添加 group 参数的子对象
+   * @param {string} name - 分组名称
+   * @returns {Object}
+   */
+  group(name) {
+    const self = this;
+    const methods = ['show','success','error','warning','info','loading','action'];
+    const g = { _group: name };
+    methods.forEach(m => {
+      g[m] = (...args) => {
+        const last = typeof args[args.length - 1] === 'object' && args[args.length - 1] !== null && !Array.isArray(args[args.length - 1])
+          ? args.pop() : {};
+        return self[m](...args, { ...last, group: name });
+      };
+    });
+    g.dismiss = () => self.dismissGroup(name);
+    g.count = () => self._groupCount(name);
+    return g;
+  },
+  
+  /**
+   * 按组关闭Toast
+   * @param {string} name - 分组名称
+   */
+  dismissGroup(name) {
+    this._toasts.forEach(t => { if (t.group === name) t.close(); });
+  },
+  
+  _groupCount(name) {
+    let c = 0;
+    this._toasts.forEach(t => { if (t.group === name) c++; });
+    return c;
+  },
 };
 
 export { meToast as default, meToast, Toast };