tweaks for missing pages

diff --git a/plack/lib/Plack/App/BookReader.pm b/plack/lib/Plack/App/BookReader.pm
index 8cc9422..f3f26f3 100644 (file)
--- a/plack/lib/Plack/App/BookReader.pm
+++ b/plack/lib/Plack/App/BookReader.pm
@@ -108,6 +108,7 @@ br.getPageHeight = function(index) {
 // We load the images from archive.org -- you can modify this function to retrieve images
 // using a different URL structure
 br.getPageURI = function(index, reduce, rotate) {
+       if ( ! pages[index] ) return;
     // reduce and rotate are ignored in this simple implementation, but we
     // could e.g. look at reduce and load images from a different directory
     // or pass the information to an image server
@@ -167,7 +168,7 @@ br.getPageNum = function(index) {
 br.numLeafs = pages.length;
 
 // Book title and the URL used for the book title link
-br.bookTitle= 'Open Library BookReader Presentation';
+br.bookTitle= '%s';
 br.bookUrl  = 'http://openlibrary.org';
 
 // Override the path used to find UI images
@@ -306,9 +307,10 @@ sub serve_path {
                        $pages = decode_json read_file $pages_path;
                } else {
                        $pages = [
+                               grep { defined $_ }
                                map {
                                        my ( $w, $h ) = imgsize("$path/$_"); 
-                                       $w && $h ? [ "$dir_url/$_", $w, $h ] : []
+                                       $w && $h ? [ "$dir_url/$_", $w, $h ] : undef
                                } sort { $a <=> $b } @page_files
                        ];
                        make_basedir $pages_path;
@@ -316,7 +318,7 @@ sub serve_path {
                        warn "# created $pages_path ", -s $pages_path, " bytes\n";
                }
                warn "# pages = ",dump($pages);
-               $page = sprintf $reader_page, $dir, encode_json( $pages );
+               $page = sprintf $reader_page, $dir, encode_json( $pages ), $dir; # FIXME: title
 
        } else {