Implement setBorderStyle for annotations

src/core/annotation.js

@@ -17,7 +17,7 @@
 /* globals PDFJS, Util, isDict, isName, stringToPDFString, warn, Dict, Stream,
            stringToBytes, assert, Promise, isArray, ObjectLoader, OperatorList,
            isValidUrl, OPS, createPromiseCapability, AnnotationType,
-           stringToUTF8String */
+           stringToUTF8String, AnnotationBorderStyleType */
 
 'use strict';
 
@@ -148,6 +148,41 @@ var Annotation = (function AnnotationClosure() {
   }
 
   Annotation.prototype = {
+    /**
+     * Set the border style (as AnnotationBorderStyle object).
+     *
+     * @public
+     * @memberof Annotation
+     * @param {Dict} borderStyle - The border style dictionary
+     */
+    setBorderStyle: function Annotation_setBorderStyle(borderStyle) {
+      if (!isDict(borderStyle)) {
+        return;
+      }
+      if (borderStyle.has('BS')) {
+        var dict = borderStyle.get('BS');
+        var dictType;
+
+        if (!dict.has('Type') || (isName(dictType = dict.get('Type')) &&
+                                  dictType.name === 'Border')) {
+          this.borderStyle.setWidth(dict.get('W'));
+          this.borderStyle.setStyle(dict.get('S'));
+          this.borderStyle.setDashArray(dict.get('D'));
+        }
+      } else if (borderStyle.has('Border')) {
+        var array = borderStyle.get('Border');
+        if (isArray(array) && array.length >= 3) {
+          this.borderStyle.setHorizontalCornerRadius(array[0]);
+          this.borderStyle.setVerticalCornerRadius(array[1]);
+          this.borderStyle.setWidth(array[2]);
+          this.borderStyle.setStyle('S');
+
+          if (array.length === 4) { // Dash array available
+            this.borderStyle.setDashArray(array[3]);
+          }
+        }
+      }
+    },
 
     getData: function Annotation_getData() {
       return this.data;