wlxml: metadata wip - as extension

[fnpeditor.git] / src / wlxml / extensions / metadata / metadata.js

diff --git a/src/wlxml/extensions/metadata/metadata.js b/src/wlxml/extensions/metadata/metadata.js
new file mode 100644 (file)
index 0000000..4136673
--- /dev/null
+++ b/src/wlxml/extensions/metadata/metadata.js
@@ -0,0 +1,41 @@
+define(function(require) {
+    
+'use strict';
+
+var _ = require('libs/underscore'),
+    metadataKey = 'wlxml.metadata';
+
+
+var methods = {
+    getMetadata: function() {
+        return this.getData(metadataKey) || [];
+    }
+};
+
+var transformations = {
+    addMetadataRow: function(row) {
+        this.setMetadataRow(null, row);
+    },
+
+    setMetadataRow: function(index, row) {
+        var metadata = this.getData(metadataKey) || [];
+        if(typeof index !== 'number' || index > metadata.length - 1) {
+            metadata.push(row);
+            index = metadata.length - 1;
+        } else {
+            metadata[index] = _.extend(metadata[index], row);
+        }
+        this.setData(metadataKey, metadata);
+        this.triggerChangeEvent('metadataChange', {index: index});
+    }
+};
+
+return {
+    elementNode: {
+        methods: methods,
+        transformations: transformations,
+    }
+};
+
+});
+