Support custom label

Fix #13

README.md

@@ -136,6 +136,8 @@ wrapAround | **false** | Determine whether to move to the start of the album whe
 disableKeyboardNav | **false** | Determine whether to disable navigation using keyboard event.
 disableScrolling | **false** | If **true**, prevent the page from scrolling while Lightbox is open. This works by settings overflow hidden on the body.
 centerVertically | **false** | If **true**, images will be centered vertically to the screen.
+albumLabel | 	"Image %1 of %2" | 	The text displayed below the caption when viewing an image set. The default text shows the current image number and the total number of images in the set.
+enableTransition | **true** | Transition animation between images will be disabled if this flag set to **false**
 
 **NOTE**: You can either override default config or during a specific opening window
 1. Override default config

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ngx-lightbox",
-  "version": "1.1.1",
+  "version": "1.2.0",
   "description": "A port >= angular5 for lightbox2",
   "main": "index.js",
   "dependencies": {},

src/lightbox-config.service.ts

@@ -13,6 +13,7 @@ export class LightboxConfig {
   public disableScrolling: boolean;
   public centerVertically: boolean;
   public enableTransition: boolean;
+  public albumLabel: string;
   constructor() {
     this.fadeDuration = 0.7;
     this.resizeDuration = 0.5;
@@ -25,5 +26,6 @@ export class LightboxConfig {
     this.disableScrolling = false;
     this.centerVertically = false;
     this.enableTransition = true;
+    this.albumLabel = 'Image %1 of %2';
   }
 }

src/lightbox.component.ts

@@ -420,7 +420,7 @@ export class LightboxComponent implements AfterViewInit, OnDestroy, OnInit {
 
   private _albumLabel(): string {
     // due to {this.currentImageIndex} is set from 0 to {this.album.length} - 1
-    return `Image ${Number(this.currentImageIndex + 1)} of ${this.album.length}`;
+    return this.options.albumLabel.replace(/%1/g, Number(this.currentImageIndex + 1)).replace(/%2/g, this.album.length);
   }
 
   private _changeImage(newIndex: number): void {