提交

src/components/ElMenu/mixins/emitter.js

@@ -0,0 +1,33 @@
+function broadcast(componentName, eventName, params) {
+  this.$children.forEach(child => {
+    var name = child.$options.componentName;
+
+    if (name === componentName) {
+      child.$emit.apply(child, [eventName].concat(params));
+    } else {
+      broadcast.apply(child, [componentName, eventName].concat([params]));
+    }
+  });
+}
+export default {
+  methods: {
+    dispatch(componentName, eventName, params) {
+      var parent = this.$parent || this.$root;
+      var name = parent.$options.componentName;
+
+      while (parent && (!name || name !== componentName)) {
+        parent = parent.$parent;
+
+        if (parent) {
+          name = parent.$options.componentName;
+        }
+      }
+      if (parent) {
+        parent.$emit.apply(parent, [eventName].concat(params));
+      }
+    },
+    broadcast(componentName, eventName, params) {
+      broadcast.call(this, componentName, eventName, params);
+    }
+  }
+};