...

src/calibre/ebooks/oeb/display/cfi.coffee

@@ -276,60 +276,60 @@ class CanonicalFragmentIdentifier
         r = this.decode(cfi, doc)
         if not r
             return null
-    node = r.node
-    ndoc = node.ownerDocument
-    if not ndoc
-        log("CFI node has no owner document: #{ cfi } #{ node }")
-        return null
-
-    nwin = ndoc.defaultView
-    x = null
-    y = null
-
-    if typeof(r.offset) == "number"
-        # Character offset
-        range = ndoc.createRange()
-        if r.forward
-            try_list = [{start:0, end:0, a:0.5}, {start:0, end:1, a:1}, {start:-1, end:0, a:0}]
-        else
-            try_list = [{start:0, end:0, a:0.5}, {start:-1, end:0, a:0}, {start:0, end:1, a:1}]
-        k = 0
-        a = null
-        rects = null
-        node_len = node.nodeValue.length
-        until rects or rects.length or k >= try_list.length
-            t = try_list[k++]
-            start_offset = r.offset + t.start
-            end_offset = r.offset + t.end
-            a = t.a
-            if start_offset < 0 or end_offset >= node_len
-                continue
-            range.setStart(node, start_offset)
-            range.setEnd(node, end_offset)
-            rects = range.getClientRects()
-
-        if not rects or not rects.length
-            log("Could not find caret position: rects: #{ rects } offset: #{ r.offset }")
+        node = r.node
+        ndoc = node.ownerDocument
+        if not ndoc
+            log("CFI node has no owner document: #{ cfi } #{ node }")
             return null
 
-        rect = rects[0]
-        x = (a*rect.left + (1-a)*rect.right)
-        y = (rect.top + rect.bottom)/2
-    else
-        x = node.offsetLeft - nwin.scrollX
-        y = node.offsetTop - nwin.scrollY
-        if typeof(r.x) == "number" and node.offsetWidth
-            x += (r.x*node.offsetWidth)/100
-            y += (r.y*node.offsetHeight)/100
-
-    until ndoc == doc
-        node = nwin.frameElement
-        ndoc = node.ownerDocument
         nwin = ndoc.defaultView
-        x += node.offsetLeft - nwin.scrollX
-        y += node.offsetTop - nwin.scrollY
+        x = null
+        y = null
 
-    {x:x, y:y, node:r.node, time:r.time}
+        if typeof(r.offset) == "number"
+            # Character offset
+            range = ndoc.createRange()
+            if r.forward
+                try_list = [{start:0, end:0, a:0.5}, {start:0, end:1, a:1}, {start:-1, end:0, a:0}]
+            else
+                try_list = [{start:0, end:0, a:0.5}, {start:-1, end:0, a:0}, {start:0, end:1, a:1}]
+            k = 0
+            a = null
+            rects = null
+            node_len = node.nodeValue.length
+            until rects or rects.length or k >= try_list.length
+                t = try_list[k++]
+                start_offset = r.offset + t.start
+                end_offset = r.offset + t.end
+                a = t.a
+                if start_offset < 0 or end_offset >= node_len
+                    continue
+                range.setStart(node, start_offset)
+                range.setEnd(node, end_offset)
+                rects = range.getClientRects()
+
+            if not rects or not rects.length
+                log("Could not find caret position: rects: #{ rects } offset: #{ r.offset }")
+                return null
+
+            rect = rects[0]
+            x = (a*rect.left + (1-a)*rect.right)
+            y = (rect.top + rect.bottom)/2
+        else
+            x = node.offsetLeft - nwin.scrollX
+            y = node.offsetTop - nwin.scrollY
+            if typeof(r.x) == "number" and node.offsetWidth
+                x += (r.x*node.offsetWidth)/100
+                y += (r.y*node.offsetHeight)/100
+
+        until ndoc == doc
+            node = nwin.frameElement
+            ndoc = node.ownerDocument
+            nwin = ndoc.defaultView
+            x += node.offsetLeft - nwin.scrollX
+            y += node.offsetTop - nwin.scrollY
+
+        {x:x, y:y, node:r.node, time:r.time}
 
     # }}}