refactoring: stop using data api on document element to keep reference to wlxmlNode

[fnpeditor.git] / src / editor / modules / documentCanvas / canvas / wlxmlListener.js

diff --git a/src/editor/modules/documentCanvas/canvas/wlxmlListener.js b/src/editor/modules/documentCanvas/canvas/wlxmlListener.js
index 8bd05a5..cbf8d08 100644 (file)
--- a/src/editor/modules/documentCanvas/canvas/wlxmlListener.js
+++ b/src/editor/modules/documentCanvas/canvas/wlxmlListener.js
@@ -29,6 +29,12 @@ $.extend(Listener.prototype, {
     }
 });
 
+
+var _metadataEventHandler = function(event) {
+    var canvasNode = utils.findCanvasElement(event.meta.node);
+    canvasNode.exec('updateMetadata');
+};
+
 var handlers = {
     nodeAttrChange: function(event) {
         if(event.meta.attr === 'class') {
@@ -39,11 +45,16 @@ var handlers = {
     nodeTagChange: function(event) {
         var canvasNode = utils.findCanvasElement(event.meta.node);
         canvasNode.setWlxmlTag(event.meta.newTagName);
+        canvasNode.wlxmlNode = event.meta.node;
     },
-    nodeAdded: function(event) {
+    nodeAdded: function(event, checkForExistence) {
+        if(event.meta.node.isRoot()) {
+            this.canvas.reloadRoot();
+            return;
+        }
         var parentElement = utils.findCanvasElement(event.meta.node.parent()),
             nodeIndex = event.meta.node.getIndex(),
-            referenceElement, referenceAction;
+            referenceElement, referenceAction, actionArg;
 
         if(nodeIndex === 0) {
             referenceElement = parentElement;
@@ -53,19 +64,31 @@ var handlers = {
             referenceAction = 'after';
         }
 
-        referenceElement[referenceAction](event.meta.node);
+        actionArg = (checkForExistence && utils.findCanvasElement(event.meta.node, event.meta.parent)) || event.meta.node;
+        referenceElement[referenceAction](actionArg);
     },
     nodeMoved: function(event) {
-        return handlers.nodeAdded(event);
+        return handlers.nodeAdded.call(this, event, true);
     },
     nodeDetached: function(event) {
         var canvasNode = utils.findCanvasElementInParent(event.meta.node, event.meta.parent);
         canvasNode.detach();
     },
     nodeTextChange: function(event) {
-        var canvasElement = utils.findCanvasElement(event.meta.node);
-        canvasElement.setText(event.meta.node.getText());
-    }
+        //console.log('wlxmlListener: ' + event.meta.node.getText());
+        var canvasElement = utils.findCanvasElement(event.meta.node),
+            toSet = event.meta.node.getText();
+        if(toSet === '') {
+            toSet = utils.unicode.ZWS;
+        }
+        if(toSet !== canvasElement.getText()) {
+            canvasElement.setText(toSet);
+        }
+    },
+
+    metadataChanged: _metadataEventHandler,
+    metadataAdded: _metadataEventHandler,
+    metadataRemoved: _metadataEventHandler
 };
 
 return {