Merge pull request tdiary#166 from tdiary/fix_161_3rd

fix tdiary#161: refresh the preview element except plugin error
tamoot · May 24, 2016 · 4b18092 · 4b18092
2 parents 17241bd + 51926e5
commit 4b18092
Showing 1 changed file with 11 additions and 6 deletions.
diff --git a/js/preview.js b/js/preview.js
@@ -15,19 +15,24 @@ $tDiary.plugin.preview.reload = function() {
     'update.rb',
     $('form.update').serialize() + "&appendpreview=1",
     function(data) {
-      $('div.autopagerize_page_element').replaceWith(
-        $(data).find('div.autopagerize_page_element')
-      );
+      var previewContent = $(data).find('div.autopagerize_page_element');
+      if (previewContent.size() != 0) {
+        $('div.autopagerize_page_element').replaceWith(previewContent);
+        intervalRate = 1;
+      } else {
+        intervalRate *= 2;
+        console.info('[preview.js] update failed, the next update will be after '
+          + $tDiary.plugin.preview.interval * intervalRate + 'sec.');
+      }
       $('div.day')
         .css('flex', "1 1 " + $tDiary.plugin.preview.minWidth / 2 + "px");
     },
     'html'
   )
-  .done(function() {
-    intervalRate = 1;
-  })
   .fail(function() {
     intervalRate *= 2;
+    console.info('[preview.js] update failed, the next update will be after '
+      + $tDiary.plugin.preview.interval * intervalRate + 'sec.');
   })
   .always(function() {
     previewButton.prop("disabled", false);