editor: edumed exercise - allow for exercise insertion after the edited one
[fnpeditor.git] / src / editor / modules / data / data.js
index ef1c87d..0d556a2 100644 (file)
@@ -1,38 +1,47 @@
 define([
     'libs/jquery',
-    './dialog',
+    'views/dialog/dialog',
     'wlxml/wlxml',
     'wlxml/extensions/list/list',
     'fnpjs/logging/logging',
-], function($, Dialog, wlxml, listExtension, logging) {
+    'fnpjs/datetime',
+    './document'
+], function($, Dialog, wlxml, listExtension, logging, datetime, Document) {
 
 'use strict';
 /* global gettext, alert, window */
 
-var logger = logging.getLogger('editor.modules.data'),
-    stubDocument = '<section><div>' + gettext('This is an empty document.') + '</div></section>';
+var logger = logging.getLogger('editor.modules.data');
 
 
 return function(sandbox) {
 
-    var document_id = sandbox.getBootstrappedData().document_id;
-    var document_version = sandbox.getBootstrappedData().version;
-    var history = sandbox.getBootstrappedData().history;
-    var documentDirty = false;
-    var draftDirty = false;
+    var data = sandbox.getBootstrappedData(),
+        documentDirty = false,
+        draftDirty = false,
+        wlxmlDocument;
 
-    var wlxmlDocument, text;
 
-    var loadDocument = function(text) {
+    var loadDocument = function(text, isDraft, draftTimestamp) {
         logger.debug('loading document');
+        var xmlValid = true;
         try {
-            wlxmlDocument = wlxml.WLXMLDocumentFromXML(text);
+            wlxmlDocument = wlxml.WLXMLDocumentFromXML(text, {editorConfig: sandbox.getConfig()}, Document.Document);
         } catch(e) {
             logger.exception(e);
-            alert(gettext('This document contains errors and can\'t be loaded. :(')); // TODO
-            wlxmlDocument = wlxml.WLXMLDocumentFromXML(stubDocument);
+            alert(gettext('The content of this document seems to be invalid - only XML source editing will be possible. :(')); // TODO
+            wlxmlDocument = wlxml.WLXMLDocumentFromXML(text, {}, Document.DumbDocument);
+            xmlValid = false;
         }
 
+        Object.keys(data)
+            .filter(function(key) {
+                return key !== 'history' && key !== 'document';
+            })
+            .forEach(function(key) {
+                wlxmlDocument.setProperty(key, data[key]);
+            });
+
         wlxmlDocument.registerExtension(listExtension);
         sandbox.getPlugins().forEach(function(plugin) {
             if(plugin.documentExtension) {
@@ -51,6 +60,8 @@ return function(sandbox) {
 
         if(window.localStorage) {
             window.setInterval(function() {
+                var timestamp = datetime.currentStrfmt(),
+                    key = getLocalStorageKey();
                 if(modificationFlag) {
                     modificationFlag = false;
                     return;
@@ -58,13 +69,14 @@ return function(sandbox) {
                 if(wlxmlDocument && documentDirty && draftDirty) {
                     logger.debug('Saving draft to local storage.');
                     sandbox.publish('savingStarted', 'local');
-                    window.localStorage.setItem(getLocalStorageKey(), wlxmlDocument.toXML());
-                    sandbox.publish('savingEnded', 'success', 'local');
+                    window.localStorage.setItem(key.content, wlxmlDocument.toXML());
+                    window.localStorage.setItem(key.contentTimestamp, timestamp);
+                    sandbox.publish('savingEnded', 'success', 'local', {timestamp: timestamp});
                     draftDirty = false;
                 }
             }, sandbox.getConfig().autoSaveInterval || 2500);
         }
-        sandbox.publish('ready');
+        sandbox.publish('ready', isDraft, draftTimestamp, xmlValid);
     };
     
     function readCookie(name) {
@@ -95,24 +107,31 @@ return function(sandbox) {
     var reloadHistory = function() {
         $.ajax({
             method: 'get',
-            url: sandbox.getConfig().documentHistoryUrl(document_id),
-            success: function(data) {
-                history = data;
-                sandbox.publish('historyItemAdded', data.slice(-1)[0]);
+            url: sandbox.getConfig().documentHistoryUrl(data.document_id),
+            success: function(history) {
+                data.history = history;
+                sandbox.publish('historyItemAdded', history.slice(-1)[0]);
             },
         });
     };
 
-    var getLocalStorageKey = function() {
-        return 'draft-id:' + document_id + '-ver:' + document_version;
+    var getLocalStorageKey = function(forVersion) {
+        var base = 'draft-id:' + data.document_id + '-ver:' + (forVersion || wlxmlDocument.properties.version);
+        return {
+            content: base,
+            contentTimestamp: base + '-content-timestamp'
+        };
     };
 
    
     return {
         start: function() {
-
+            var text;
             if(window.localStorage) {
-                text = window.localStorage.getItem(getLocalStorageKey());
+                text = window.localStorage.getItem(getLocalStorageKey(data.version).content);
+
+                var timestamp = window.localStorage.getItem(getLocalStorageKey(data.version).contentTimestamp),
+                    usingDraft;
                 if(text) {
                     logger.debug('Local draft exists');
                     var dialog = Dialog.create({
@@ -123,22 +142,24 @@ return function(sandbox) {
                     });
                     dialog.on('cancel', function() {
                         logger.debug('Bootstrapped version chosen');
+                        usingDraft = false;
                         text = sandbox.getBootstrappedData().document;
                         
                     });
                     dialog.on('execute', function(event) {
                         logger.debug('Local draft chosen');
+                        usingDraft = true;
                         event.success();
                     });
                     dialog.show();
                     dialog.on('close', function() {
-                        loadDocument(text);
+                        loadDocument(text, usingDraft, timestamp);
                     });
                 } else {
-                    loadDocument(sandbox.getBootstrappedData().document);
+                    loadDocument(sandbox.getBootstrappedData().document, false);
                 }
             } else {
-                loadDocument(sandbox.getBootstrappedData().document);
+                loadDocument(sandbox.getBootstrappedData().document, false);
             }
         },
         getDocument: function() {
@@ -155,7 +176,8 @@ return function(sandbox) {
                 dialog = Dialog.create({
                     fields: documentSaveForm.fields,
                     title: gettext('Save Document'),
-                    executeButtonText: gettext('Save')
+                    executeButtonText: gettext('Save'),
+                    cancelButtonText: gettext('Cancel')
                 });
             
             dialog.on('execute', function(event) {
@@ -163,7 +185,7 @@ return function(sandbox) {
 
                 var formData = event.formData;
                 formData[documentSaveForm.content_field_name] = wlxmlDocument.toXML();
-                formData[documentSaveForm.version_field_name] = document_version;
+                formData[documentSaveForm.version_field_name] = wlxmlDocument.properties.version;
                 if(sandbox.getConfig().jsonifySentData) {
                     formData = JSON.stringify(formData);
                 }
@@ -171,12 +193,20 @@ return function(sandbox) {
                 dialog.toggleButtons(false);
                 $.ajax({
                     method: 'post',
-                    url: sandbox.getConfig().documentSaveUrl(document_id),
+                    url: sandbox.getConfig().documentSaveUrl(data.document_id),
                     data: formData,
                     success: function(data) {
                         event.success();
-                        sandbox.publish('savingEnded', 'success', 'remote', data.version);
-                        document_version = data.version;
+                        sandbox.publish('savingEnded', 'success', 'remote', data);
+
+                        Object.keys(data)
+                            .filter(function(key) {
+                                return key !== 'text';
+                            })
+                            .forEach(function(key) {
+                                wlxmlDocument.setProperty(key, data[key]);
+                            });
+
                         reloadHistory();
                     },
                     error: function() {event.error(); sandbox.publish('savingEnded', 'error', 'remote');}
@@ -189,12 +219,12 @@ return function(sandbox) {
 
         },
         getHistory: function() {
-            return history;
+            return data.history;
         },
         fetchDiff: function(ver1, ver2) {
             $.ajax({
                 method: 'get',
-                url: sandbox.getConfig().documentDiffUrl(document_id),
+                url: sandbox.getConfig().documentDiffUrl(data.document_id),
                 data: {from: ver1, to: ver2},
                 success: function(data) {
                     sandbox.publish('diffFetched', {table: data, ver1: ver1, ver2: ver2});
@@ -211,7 +241,8 @@ return function(sandbox) {
                 dialog = Dialog.create({
                     fields: documentRestoreForm.fields,
                     title: gettext('Restore Version'),
-                    executeButtonText: gettext('Restore')
+                    executeButtonText: gettext('Restore'),
+                    cancelButtonText: gettext('Cancel')
                 });
 
             dialog.on('execute', function(event) {
@@ -224,10 +255,16 @@ return function(sandbox) {
                 $.ajax({
                     method: 'post',
                     dataType: 'json',
-                    url: sandbox.getConfig().documentRestoreUrl(document_id),
+                    url: sandbox.getConfig().documentRestoreUrl(data.document_id),
                     data: formData,
                     success: function(data) {
-                        document_version = data.version;
+                        Object.keys(data)
+                            .filter(function(key) {
+                                return key !== 'document';
+                            })
+                            .forEach(function(key) {
+                                wlxmlDocument.setProperty(key, data[key]);
+                            });
                         reloadHistory();
                         wlxmlDocument.loadXML(data.document);
                         documentDirty = false;
@@ -243,12 +280,7 @@ return function(sandbox) {
             wlxmlDocument.loadXML(sandbox.getBootstrappedData().document);
             draftDirty = false;
             logger.debug('Draft dropped');
-        },
-        getDocumentId: function() {
-            return document_id;
-        },
-        getDocumentVersion: function() {
-            return document_version;
+            sandbox.publish('draftDropped');
         }
     };
 };