Can now access by leaf number in URL, e.g. http://www.archive.org/stream/itemid#page...

[bookreader.git] / BookReader / BookReader.js

diff --git a/BookReader/BookReader.js b/BookReader/BookReader.js
index 5bd7692..de9ed07 100644 (file)
--- a/BookReader/BookReader.js
+++ b/BookReader/BookReader.js
@@ -152,7 +152,16 @@ BookReader.prototype.init = function() {
     this.pageScale = this.reduce; // preserve current reduce
     
     // Find start index and mode if set in location hash
-    var params = this.paramsFromFragment(window.location.hash);
+    var params = {};
+    if (window.location.hash) {
+        // params explicitly set in URL
+        params = this.paramsFromFragment(window.location.hash);
+    } else {
+        // params not explicitly set, use defaults if we have them
+        if ('defaults' in this) {
+            params = this.paramsFromFragment(this.defaults);
+        }
+    }
     
     // Sanitize/process parameters
 
@@ -1246,7 +1255,21 @@ BookReader.prototype._reduceSort = function(a, b) {
 // Attempts to jump to page.  Returns true if page could be found, false otherwise.
 BookReader.prototype.jumpToPage = function(pageNum) {
 
-    var pageIndex = this.getPageIndex(pageNum);
+    var pageIndex;
+    
+    // Check for special "leaf"
+    var re = new RegExp('^leaf(\\d+)');
+    leafMatch = re.exec(pageNum);
+    if (leafMatch) {
+        console.log(leafMatch[1]);
+        pageIndex = this.leafNumToIndex(parseInt(leafMatch[1],10));
+        if (pageIndex === null) {
+            pageIndex = undefined; // to match return type of getPageIndex
+        }
+        
+    } else {
+        pageIndex = this.getPageIndex(pageNum);
+    }
 
     if ('undefined' != typeof(pageIndex)) {
         var leafTop = 0;
@@ -4273,7 +4296,7 @@ BookReader.prototype.updateFromParams = function(params) {
             this.jumpToPage(params.page);
         }
     }
-    
+
     // $$$ process /region
     // $$$ process /highlight
 }