Popover: not emit event or create popper when disabled (#11426)

packages/popover/src/main.vue

@@ -68,6 +68,9 @@ export default {
   },
   watch: {
     showPopper(val) {
+      if (this.disabled) {
+        return;
+      }
       val ? this.$emit('show') : this.$emit('hide');
     }
   },

src/utils/vue-popper.js

@@ -70,6 +70,9 @@ export default {
     },
 
     showPopper(val) {
+      if (this.disabled) {
+        return;
+      }
       val ? this.updatePopper() : this.destroyPopper();
       this.$emit('input', val);
     }