[new feature] add Notify component (#2135)

types/index.d.ts

@@ -2,6 +2,7 @@ import Vue from 'vue';
 import { VanComponent } from './component';
 import { Toast } from './toast';
 import { Dialog } from './dialog';
+import { Notify } from './notify';
 import { Locale } from './locale';
 import { Lazyload } from './lazyload';
 import { Waterfall } from './waterfall';
@@ -74,6 +75,7 @@ export class Uploader extends VanComponent {}
 export {
   Toast,
   Dialog,
+  Notify,
   Locale,
   Lazyload,
   Waterfall,

types/notify.d.ts

@@ -0,0 +1,32 @@
+import Vue from 'vue';
+
+type NotifyMessage = string | number;
+
+export type NotifyOptions = {
+  message?: NotifyMessage;
+  color?: string;
+  background?: string;
+  duration?: number;
+}
+
+export interface VanNotify extends Vue {
+  message: NotifyMessage;
+  color: string;
+  background: string;
+  duration: number;
+}
+
+export interface Notify {
+  (message: NotifyOptions | NotifyMessage): VanNotify;
+  clear(): void;
+  setDefaultOptions(options: NotifyOptions): void;
+  resetDefaultOptions(): void;
+}
+
+declare module 'vue/types/vue' {
+  interface Vue {
+    $notify: Notify
+  }
+}
+
+export const Notify: Notify;