update epub.js

1 files changed, 20 insertions, 12 deletions

diff --git a/lib/epub.js b/lib/epub.js
index f5ad7db..277d998 100644
--- a/lib/epub.js
+++ b/lib/epub.js
@@ -6077,19 +6077,24 @@ EPUBJS.Locations.prototype.process = function(chapter) {
       var counter = 0;
       var prev;
       var cfi;
+      var _break = this.break;
 
       this.sprint(contents, function(node) {
         var len = node.length;
         var dist;
         var pos = 0;
 
+        if (node.textContent.trim().length === 0) {
+          return false; // continue
+        }
+
         // Start range
         if (counter === 0) {
           range = doc.createRange();
           range.setStart(node, 0);
         }
 
-        dist = this.break - counter;
+        dist = _break - counter;
 
         // Node is smaller than a break
         if(dist > len){
@@ -6098,28 +6103,31 @@ EPUBJS.Locations.prototype.process = function(chapter) {
         }
 
         while (pos < len) {
-          counter = this.break;
-          pos += this.break;
+          dist = _break - counter;
+
+          if (counter === 0) {
+            pos += 1;
+            range = doc.createRange();
+            range.setStart(node, pos);
+          }
 
           // Gone over
-          if(pos >= len){
+          if(pos + dist >= len){
             // Continue counter for next node
-            counter = len - (pos - this.break);
-
+            counter += len - pos;
+            // break
+            pos = len;
           // At End
           } else {
+            // Advance pos
+            pos += dist;
+
             // End the previous range
             range.setEnd(node, pos);
             cfi = chapter.cfiFromRange(range);
             this._locations.push(cfi);
             counter = 0;
-
-            // Start new range
-            pos += 1;
-            range = doc.createRange();
-            range.setStart(node, pos);
           }
-
         }
 
         prev = node;