Add autosave/restore for subpages too

lib/gollum/public/gollum/javascript/editor/gollum.editor.js

@@ -17,6 +17,8 @@
     NoDefinitionsFor: []
   };
   var ActiveOptions = {};
+  var autoSaveTimer = null;
+  var storageKey = 'gollum_autorecover_' + window.location;
 
   function isRTL(s){           
     var ltrChars    = 'A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02B8\u0300-\u0590\u0800-\u1FFF'+'\u2C00-\uFB1C\uFDFE-\uFE6F\uFEFD-\uFFFF',
@@ -32,6 +34,27 @@
     window.ace_editor.renderer.updateFull();
   }
 
+  function autoSaveHandler() {
+    // Autosave
+    if (autoSaveTimer) {
+      // Reset the timer because we just changed the text
+      clearTimeout(autoSaveTimer);
+    }
+
+    $('#gollum-saved-msg').text('Saving...');
+
+    // Wait 2 seconds, then actualy save the text to local storage
+    autoSaveTimer = setTimeout(function() {
+      localStorage.setItem(storageKey, window.ace_editor.getSession().getValue());
+      // Save any subpage editor text that might exist
+      $('#gollum-editor-header, #gollum-editor-footer, #gollum-editor-sidebar').each(function(_, el) {
+        var spStorageKey = storageKey + el.id.replace('gollum-editor-', '_');
+        localStorage.setItem(spStorageKey, el.value);
+      });
+      $('#gollum-saved-msg').text('Saved recovery text');
+    }, 2000);
+  }
+
   /**
    *  $.GollumEditor
    *
@@ -51,20 +74,24 @@
       }).insertAfter(textarea);
       textarea.css('display', 'none');
 
-      var autoSaveTimer = null;
-
       // NOTE: This requires the page to have only one 'gollum-editor-body'.
       var editor = ace.edit(editDiv[0], {rtlText: true});
       window.ace_editor = editor;
 
       // Check to see if we have any autosaved text and show a message to
       // restore it if present.
-      var storageKey = 'gollum_autorecover_' + window.location;
       var savedText = localStorage.getItem(storageKey);
 
       if (savedText) {
         $('#gollum-autorecover-button').click(function(e) {
             editor.getSession().setValue(savedText);
+            // Restore subpage editor values too, if they exist
+            ['header', 'footer', 'sidebar'].forEach(function(i) {
+              var sbSavedText = localStorage.getItem(storageKey + '_' + i);
+              if (sbSavedText) {
+                $('#gollum-editor-' + i).val(sbSavedText);
+              }
+            });
             $('#gollum-autorecover-msg')[0].hidden = true;
             e.preventDefault();
         });
@@ -80,22 +107,13 @@
 
       editor.getSession().on('change', function(){
         textarea.val(editor.getSession().getValue());
-
-        // Autosave
-        if (autoSaveTimer) {
-          // Reset the timer because we just changed the text
-          clearTimeout(autoSaveTimer);
-        }
-
-        $('#gollum-saved-msg').text('Saving...');
-
-        // Wait 2 seconds, then actualy save the text to local storage
-        autoSaveTimer = setTimeout(function() {
-          localStorage.setItem(storageKey, editor.getSession().getValue());
-          $('#gollum-saved-msg').text('Saved recovery text');
-        }, 2000);
+        autoSaveHandler();
       });
 
+      // Autosave for the header, footer and sidebar
+      $('#gollum-editor-header, #gollum-editor-footer, #gollum-editor-sidebar')
+        .on('change keyup paste', autoSaveHandler);
+
       if (isRTL(editor.getSession().getLine(0))) {
         switchRtl(true);
       }
@@ -148,6 +166,10 @@
     $("#gollum-editor-submit, #gollum-editor-cancel").click(function() {
       var storageKey = 'gollum_autorecover_' + window.location;
       localStorage.removeItem(storageKey);
+      // Clear subpage editor values too, if they exist
+      ['header', 'footer', 'sidebar'].forEach(function(i) {
+        localStorage.removeItem(storageKey + '_' + i);
+      });
     });
 
     debug('GollumEditor loading');