smartxml: Node.detach informs its caller if merge was performed

[fnpeditor.git] / src / smartxml / core.js

diff --git a/src/smartxml/core.js b/src/smartxml/core.js
index 048130e..6329491 100644 (file)
--- a/src/smartxml/core.js
+++ b/src/smartxml/core.js
@@ -13,7 +13,7 @@ var INSERTION = function(implementation) {
             nodeParent,
             returned;
         options = options || {};
-        if(!(this.document.containsNode(this)) || !insertion.isNew) {
+        if(!(this.document.containsNode(this)) || !insertion.insertsNew) {
             nodeParent = insertion.ofNode.parent();
         }
         if(!insertion.insertsNew && insertion.ofNode.isSurroundedByTextNodes()) {
@@ -23,8 +23,11 @@ var INSERTION = function(implementation) {
             next.detach();
         }
         returned = implementation.call(this, insertion.ofNode);
-        if(!options.silent && returned.sameNode(insertion.ofNode)) {
-            this.triggerChangeEvent(insertion.insertsNew ? 'nodeAdded' : 'nodeMoved', {node: insertion.ofNode}, nodeParent, nodeWasContained);
+        if(!options.silent && returned && returned.sameNode(insertion.ofNode)) {
+            if(!insertion.insertsNew) {
+                this.triggerChangeEvent('nodeDetached', {node: insertion.ofNode, parent: nodeParent, move: true});
+            }
+            this.triggerChangeEvent('nodeAdded', {node: insertion.ofNode, move: !insertion.insertsNew}, nodeParent, nodeWasContained);
         }
         return returned;
     };
@@ -60,7 +63,11 @@ var documentNodeTransformations = {
     },
 
     after: INSERTION(function(node) {
+        if(this.isRoot()) {
+            return;
+        }
         var next = this.next();
+
         if(next && next.nodeType === Node.TEXT_NODE && node.nodeType === Node.TEXT_NODE) {
             next.setText(node.getText() + next.getText());
             node.detach();
@@ -71,6 +78,9 @@ var documentNodeTransformations = {
     }),
 
     before: INSERTION(function(node) {
+        if(this.isRoot()) {
+            return;
+        }
         var prev = this.prev();
         if(prev && prev.nodeType === Node.TEXT_NODE && node.nodeType === Node.TEXT_NODE) {
             prev.setText(prev.getText() + node.getText());
@@ -110,12 +120,32 @@ var documentNodeTransformations = {
 
 var elementNodeTransformations = {
 
-    detach: function() {
-        var next;
+    detach: function(params) {
+        var next, prev;
+
+        params = params || {};
+
+        if(!params.normalizeStrategy) {
+            params.normalizeStrategy = 'merge';
+        }
+
         if(this.parent() && this.isSurroundedByTextNodes()) {
-            next = this.next();
-            this.prev().appendText(next.getText());
-            next.detach();
+            if(params.normalizeStrategy === 'detach-left') {
+                this.prev().detach();
+            } else if(params.normalizeStrategy === 'detach-right') {
+                this.next().detach();
+            } else if(params.normalizeStrategy === 'merge') {
+                next = this.next();
+                prev = this.prev();
+                params.ret = {
+                    mergedTo: prev,
+                    previousLen: prev.getText().length
+                };
+                prev.appendText(next.getText());
+                next.detach();
+            } else {
+                throw new Error('unknown normalize strategy for detach');
+            }
         }
         return this.__super__.detach();
     },
@@ -184,15 +214,21 @@ var elementNodeTransformations = {
             return;
         }
 
+        this.contents()
+            .filter(function(child) {
+                return child.getProperty('describesParent');
+            }.bind(this))
+            .forEach(function(child) {
+                child.detach();
+            });
+
         var myContents = this.contents(),
             myIdx = parent.indexOf(this);
 
-
         if(myContents.length === 0) {
             return this.detach();
         }
 
-
         var childrenLength = this.contents().length,
             first = true,
             shiftRange = false;
@@ -378,7 +414,9 @@ var documentTransformations = {
         }
 
         for(var i = idx1; i <= idx2; i++) {
-            wrapper.append(parentContents[i].detach());
+            if(!parentContents[i].getProperty('describesParent')) {
+                wrapper.append(parentContents[i].detach());
+            }
         }
 
         insertingTarget[insertingMethod](wrapper);
@@ -423,7 +461,9 @@ var documentTransformations = {
                 wrapperElement.append({text: prefixInside});
             }
             for(var i = idx1 + 1; i < idx2; i++) {
-                wrapperElement.append(contentsInside[i]);
+                if(!contentsInside[i].getProperty('describesParent')) {
+                    wrapperElement.append(contentsInside[i]);
+                }
             }
             if(suffixInside.length > 0) {
                 wrapperElement.append({text: suffixInside});
@@ -442,7 +482,7 @@ var documentTransformations = {
         return insertion.ofNode;
     },
     deleteText: function(params) {
-        var ptr, next, toDetach, middle, text;
+        var ptr, next, nextNext, toDetach, middle, text;
 
         if(params.from.node.sameNode(params.to.node)) {
             ptr = params.from.node;
@@ -470,7 +510,11 @@ var documentTransformations = {
                 } else {
                     toDetach = next;
                     next = next.next();
-                    toDetach.detach();
+                    nextNext = next ? next.next() : null;
+                    toDetach.detach({normalizeStrategy: (next && next.sameNode(params.to.node)) ? 'merge' : 'detach-right'});
+                    if(next && !next.isInDocument()) {
+                        next = nextNext;
+                    }
                 }
             } else {
                 ptr = ptr.parent();