Disables the previous/next arrows on pdf books on the first/last pages respectively

2013-09-19 20:50:05 +05:00
parent 01a4292511
commit 59c5baeb1b
2 changed files with 10 additions and 4 deletions
--- a/common/static/js/pdfviewer.js
+++ b/common/static/js/pdfviewer.js
@@ -200,6 +200,12 @@ PDFJS.disableWorker = true;
            document.getElementById('numPages').textContent = 'of ' + pdfDocument.numPages;
            $("#pageNumber").max = pdfDocument.numPages;
            $("#pageNumber").val(pageNum);
+
+            // Enable/disable the previous/next buttons
+            if (pageNum > 1) $("#previous").addClass("enabled");
+            else $("#previous").removeClass("enabled");
+            if (pageNum < pdfDocument.numPages) $("#next").addClass("enabled");
+            else $("#next").removeClass("enabled");
        }

        // Go to previous page