#167 JS development of hashchange-dependant tabbing mechanism, and of Rickshaw graphs with separate legends.
[ckanext-ga-report.git] / ckanext / ga_report / public / scripts / ckanext_ga_reports.js
blob:a/ckanext/ga_report/public/scripts/ckanext_ga_reports.js -> blob:b/ckanext/ga_report/public/scripts/ckanext_ga_reports.js
--- a/ckanext/ga_report/public/scripts/ckanext_ga_reports.js
+++ b/ckanext/ga_report/public/scripts/ckanext_ga_reports.js
@@ -1,9 +1,18 @@
-
 var CKAN = CKAN || {};
 CKAN.GA_Reports = {};
 
 CKAN.GA_Reports.render_rickshaw = function( css_name, data, mode, colorscheme ) {
     var graphLegends = $('#graph-legend-container');
+
+    if (!Modernizr.svg) {
+        $("#chart_"+css_name)
+          .html( '<div class="alert">Your browser does not support vector graphics. No graphs can be rendered.</div>')
+          .closest('.rickshaw_chart_container').css('height',50);
+        var myLegend = $('<div id="legend_'+css_name+'"/>')
+          .html('(Graph cannot be rendered)')
+          .appendTo(graphLegends);
+        return;
+    }
     var myLegend = $('<div id="legend_'+css_name+'"/>').appendTo(graphLegends);
 
     var palette = new Rickshaw.Color.Palette( { scheme: colorscheme } );
@@ -24,7 +33,7 @@
         graph: graph,
         orientation: 'left',
         tickFormat: Rickshaw.Fixtures.Number.formatKMBT,
-        element: document.getElementById('y_axis_'+css_name),
+        element: document.getElementById('y_axis_'+css_name)
     } );
     var legend = new Rickshaw.Graph.Legend( {
         element: document.querySelector('#legend_'+css_name),