Implement support for Squiggly annotations

src/core/annotation.js

@@ -99,6 +99,9 @@ AnnotationFactory.prototype = /** @lends AnnotationFactory.prototype */ {
       case 'Underline':
         return new UnderlineAnnotation(parameters);
 
+      case 'Squiggly':
+        return new SquigglyAnnotation(parameters);
+
       case 'StrikeOut':
         return new StrikeOutAnnotation(parameters);
 
@@ -808,6 +811,22 @@ var UnderlineAnnotation = (function UnderlineAnnotationClosure() {
   return UnderlineAnnotation;
 })();
 
+var SquigglyAnnotation = (function SquigglyAnnotationClosure() {
+  function SquigglyAnnotation(parameters) {
+    Annotation.call(this, parameters);
+
+    this.data.annotationType = AnnotationType.SQUIGGLY;
+    this.data.hasHtml = true;
+
+    // PDF viewers completely ignore any border styles.
+    this.data.borderStyle.setWidth(0);
+  }
+
+  Util.inherit(SquigglyAnnotation, Annotation, {});
+
+  return SquigglyAnnotation;
+})();
+
 var StrikeOutAnnotation = (function StrikeOutAnnotationClosure() {
   function StrikeOutAnnotation(parameters) {
     Annotation.call(this, parameters);

src/display/annotation_layer.js

@@ -75,6 +75,9 @@ AnnotationElementFactory.prototype =
       case AnnotationType.UNDERLINE:
         return new UnderlineAnnotationElement(parameters);
 
+      case AnnotationType.SQUIGGLY:
+        return new SquigglyAnnotationElement(parameters);
+
       case AnnotationType.STRIKEOUT:
         return new StrikeOutAnnotationElement(parameters);
 
@@ -633,6 +636,32 @@ var UnderlineAnnotationElement = (
   return UnderlineAnnotationElement;
 })();
 
+/**
+ * @class
+ * @alias SquigglyAnnotationElement
+ */
+var SquigglyAnnotationElement = (function SquigglyAnnotationElementClosure() {
+  function SquigglyAnnotationElement(parameters) {
+    AnnotationElement.call(this, parameters);
+  }
+
+  Util.inherit(SquigglyAnnotationElement, AnnotationElement, {
+    /**
+     * Render the squiggly annotation's HTML element in the empty container.
+     *
+     * @public
+     * @memberof SquigglyAnnotationElement
+     * @returns {HTMLSectionElement}
+     */
+    render: function SquigglyAnnotationElement_render() {
+      this.container.className = 'squigglyAnnotation';
+      return this.container;
+    }
+  });
+
+  return SquigglyAnnotationElement;
+})();
+
 /**
  * @class
  * @alias StrikeOutAnnotationElement

test/pdfs/.gitignore

@@ -203,3 +203,4 @@
 !annotation-text-without-popup.pdf
 !annotation-underline.pdf
 !annotation-strikeout.pdf
+!annotation-squiggly.pdf

test/test_manifest.json

@@ -2660,6 +2660,13 @@
        "type": "eq",
        "annotations": true
     },
+    {  "id": "annotation-squiggly",
+       "file": "pdfs/annotation-squiggly.pdf",
+       "md5": "38661e731ac6c525af5894d2d20c6e71",
+       "rounds": 1,
+       "type": "eq",
+       "annotations": true
+    },
     {  "id": "issue6108",
        "file": "pdfs/issue6108.pdf",
        "md5": "8961cb55149495989a80bf0487e0f076",

web/annotation_layer_builder.css

@@ -69,10 +69,8 @@
   padding-top: 0.2em;
 }
 
-.annotationLayer .underlineAnnotation {
-  cursor: pointer;
-}
-
+.annotationLayer .underlineAnnotation,
+.annotationLayer .squigglyAnnotation,
 .annotationLayer .strikeoutAnnotation {
   cursor: pointer;
 }