Added forRoot static method for PerfectScrollbarModule

README.md

@@ -50,7 +50,6 @@ Providing the global configuration is optional and when used you should only pro
 
 ```javascript
 import { PerfectScrollbarModule } from 'ngx-perfect-scrollbar';
-import { PERFECT_SCROLLBAR_CONFIG } from 'ngx-perfect-scrollbar';
 import { PerfectScrollbarConfigInterface } from 'ngx-perfect-scrollbar';
 
 const DEFAULT_PERFECT_SCROLLBAR_CONFIG: PerfectScrollbarConfigInterface = {
@@ -61,13 +60,7 @@ const DEFAULT_PERFECT_SCROLLBAR_CONFIG: PerfectScrollbarConfigInterface = {
   ...
   imports: [
     ...
-    PerfectScrollbarModule
-  ],
-  providers: [
-    {
-      provide: PERFECT_SCROLLBAR_CONFIG,
-      useValue: DEFAULT_PERFECT_SCROLLBAR_CONFIG
-    }
+    PerfectScrollbarModule.forRoot(DEFAULT_PERFECT_SCROLLBAR_CONFIG)
   ]
 })
 ```

example/src/app/app.module.ts

@@ -4,8 +4,7 @@ import { BrowserModule } from '@angular/platform-browser';
 
 import { FlexLayoutModule } from '@angular/flex-layout';
 
-import { PerfectScrollbarModule, PerfectScrollbarConfigInterface,
-  PERFECT_SCROLLBAR_CONFIG } from 'ngx-perfect-scrollbar';
+import { PerfectScrollbarModule, PerfectScrollbarConfigInterface } from 'ngx-perfect-scrollbar';
 
 import { AppComponent } from './app.component';
 
@@ -23,15 +22,9 @@ const DEFAULT_PERFECT_SCROLLBAR_CONFIG: PerfectScrollbarConfigInterface = {
   imports: [
     BrowserModule,
     FlexLayoutModule,
-    PerfectScrollbarModule
+    PerfectScrollbarModule.forRoot(DEFAULT_PERFECT_SCROLLBAR_CONFIG)
   ],
   exports: [
-  ],
-  providers: [
-    {
-      provide: PERFECT_SCROLLBAR_CONFIG,
-      useValue: DEFAULT_PERFECT_SCROLLBAR_CONFIG
-    }
   ]
 })
 export class AppModule {}

src/lib/perfect-scrollbar.module.ts

@@ -1,14 +1,26 @@
-import { NgModule } from '@angular/core';
+import { NgModule, ModuleWithProviders } from '@angular/core';
 
 import { CommonModule } from '@angular/common';
 
 import { PerfectScrollbarComponent } from './perfect-scrollbar.component';
 import { PerfectScrollbarDirective } from './perfect-scrollbar.directive';
+import { PerfectScrollbarConfigInterface, PERFECT_SCROLLBAR_CONFIG } from './perfect-scrollbar.interfaces'
 
 @NgModule({
     imports: [CommonModule],
     declarations: [PerfectScrollbarComponent, PerfectScrollbarDirective],
     exports: [CommonModule, PerfectScrollbarComponent, PerfectScrollbarDirective]
 })
 export class PerfectScrollbarModule {
+    static forRoot(config?: PerfectScrollbarConfigInterface): ModuleWithProviders {
+        return {
+            ngModule: PerfectScrollbarModule,
+            providers: [
+                {
+                    provide: PERFECT_SCROLLBAR_CONFIG,
+                    useValue: config
+                }
+            ]
+        };
+    }
 }