hook up pager buttons to stemma loading; zap occasional error in upload success function

[scpubgit/stemmaweb.git] / root / js / componentload.js

diff --git a/root/js/componentload.js b/root/js/componentload.js
index 35f529a..2df5fec 100644 (file)
--- a/root/js/componentload.js
+++ b/root/js/componentload.js
@@ -36,7 +36,11 @@ function loadTradition( textid, textname, editable ) {
        if( stemmata.length ) {
                selectedStemmaID = 0;
                load_stemma( selectedStemmaID, basepath );
-       }
+       } else {
+                       $('#open_stemma_edit').hide();
+                       $('#run_stexaminer').hide();
+                       show_stemmapager(); // to grey out both buttons
+               }
        // Set up the relationship mapper button
                $('#run_relater').attr( 'action', basepath + "/relation/" + textid );
        });
@@ -67,11 +71,29 @@ function load_textinfo() {
        }
 }      
 
+function show_stemmapager () {
+      $('.pager_left_button').unbind('click').css( 'opacity', '0.5' );
+      $('.pager_right_button').unbind('click').css( 'opacity', '0.5' );
+      if( selectedStemmaID > 0 ) {
+              $('.pager_left_button').click( function () {
+                      load_stemma( selectedStemmaID - 1 );
+              }).css( 'opacity' , '1.0' );
+      }       
+      if( selectedStemmaID + 1 < stemmata.length ) {
+              $('.pager_right_button').click( function () {
+                      load_stemma( selectedStemmaID + 1 );
+              }).css( 'opacity' , '1.0' );
+      }
+}
+
+
 function load_stemma( idx ) {
+       // Load the stemma at idx
+       selectedStemmaID = idx;
        if( idx > -1 ) {
-               selectedStemmaID = idx;
                $('#stemma_graph').empty();
                $('#stemma_graph').append( stemmata[idx] );
+               show_stemmapager();
                // Stexaminer submit action
                var stexpath = basepath + "/stexaminer/" + selectedTextID + "/" + idx;
                $('#run_stexaminer').attr( 'action', stexpath );