editor: actions implementation

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

diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js
index 013ea9a..08897cc 100644 (file)
--- a/src/smartxml/smartxml.js
+++ b/src/smartxml/smartxml.js
@@ -4,8 +4,9 @@ define([
     'libs/backbone',
     'smartxml/events',
     'smartxml/transformations',
     'libs/backbone',
     'smartxml/events',
     'smartxml/transformations',

-    'smartxml/core'
-], function($, _, Backbone, events, transformations, coreTransformations) {
+    'smartxml/core',
+    'smartxml/fragments'
+], function($, _, Backbone, events, transformations, coreTransformations, fragments) {

     
 'use strict';
 /* globals Node */
     
 'use strict';
 /* globals Node */


@@ -78,6 +79,10 @@ $.extend(DocumentNode.prototype, {
         return this.document.root.sameNode(this);
     },
 
         return this.document.root.sameNode(this);
     },
 

+    isSiblingOf: function(node) {
+        return node && this.parent().sameNode(node.parent());
+    },
+

     sameNode: function(otherNode) {
         return !!(otherNode) && this.nativeNode === otherNode.nativeNode;
     },
     sameNode: function(otherNode) {
         return !!(otherNode) && this.nativeNode === otherNode.nativeNode;
     },


@@ -143,6 +148,10 @@ $.extend(DocumentNode.prototype, {
             return 0;
         }
         return this.parent().indexOf(this);
             return 0;
         }
         return this.parent().indexOf(this);

+    },
+
+    getNearestElementNode: function() {
+        return this.nodeType === Node.ELEMENT_NODE ? this : this.parent();

     }
 });
 
     }
 });
 


@@ -273,7 +282,7 @@ var registerMethod = function(methodName, method, target) {
 var Document = function(xml, extensions) {
     this.undoStack = [];
     this.redoStack = [];
 var Document = function(xml, extensions) {
     this.undoStack = [];
     this.redoStack = [];

-    this._transactionStack = [];
+    this._currentTransaction = null;

     this._transformationLevel = 0;
     
     this._nodeMethods = {};
     this._transformationLevel = 0;
     
     this._nodeMethods = {};


@@ -291,7 +300,7 @@ var Document = function(xml, extensions) {
     this.loadXML(xml);
 };
 
     this.loadXML(xml);
 };
 

-$.extend(Document.prototype, Backbone.Events, {
+$.extend(Document.prototype, Backbone.Events, fragments, {

     ElementNodeFactory: ElementNode,
     TextNodeFactory: TextNode,
 
     ElementNodeFactory: ElementNode,
     TextNodeFactory: TextNode,
 


@@ -476,6 +485,12 @@ $.extend(Document.prototype, Backbone.Events, {
     transform: function(Transformation, args) {
         var toret, transformation;
 
     transform: function(Transformation, args) {
         var toret, transformation;
 

+        if(!this._currentTransaction) {
+            return this.transaction(function() {
+                return this.transform(Transformation, args);
+            }, {context: this});
+        }
+

         if(typeof Transformation === 'function') {
             transformation = new Transformation(this, this, args);
         } else {
         if(typeof Transformation === 'function') {
             transformation = new Transformation(this, this, args);
         } else {


@@ -491,13 +506,7 @@ $.extend(Document.prototype, Backbone.Events, {
                 },
                 function() {
                     if(this._transformationLevel === 1 && !this._undoInProgress) {
                 },
                 function() {
                     if(this._transformationLevel === 1 && !this._undoInProgress) {

-                        if(this._transactionInProgress) {
-                            this._transactionStack.push(transformation);
-                        } else {
-                            this.undoStack.push(new Transaction([transformation]));
-                        }
-                    }
-                    if(!this._undoInProgress && this._transformationLevel === 1) {
+                        this._currentTransaction.pushTransformation(transformation);

                         this.redoStack = [];
                     }
                 }
                         this.redoStack = [];
                     }
                 }


@@ -542,6 +551,7 @@ $.extend(Document.prototype, Backbone.Events, {
 
             this._undoInProgress = false;
             this.redoStack.push(transaction);
 
             this._undoInProgress = false;
             this.redoStack.push(transaction);

+            this.trigger('operationEnd');

         }
     },
     redo: function() {
         }
     },
     redo: function() {


@@ -553,32 +563,57 @@ $.extend(Document.prototype, Backbone.Events, {
             });
             this._transformationLevel--;
             this.undoStack.push(transaction);
             });
             this._transformationLevel--;
             this.undoStack.push(transaction);

+            this.trigger('operationEnd');
+

         }
     },
 
         }
     },
 

-    startTransaction: function() {
-        if(this._transactionInProgress) {
+    startTransaction: function(metadata) {
+        if(this._currentTransaction) {

             throw new Error('Nested transactions not supported!');
         }
             throw new Error('Nested transactions not supported!');
         }

-        this._transactionInProgress = true;
+        this._rollbackBackup = this.root.clone();
+        this._currentTransaction = new Transaction([], metadata);

     },
 
     endTransaction: function() {
     },
 
     endTransaction: function() {

-        if(!this._transactionInProgress) {
+        if(!this._currentTransaction) {

             throw new Error('End of transaction requested, but there is no transaction in progress!');
         }
             throw new Error('End of transaction requested, but there is no transaction in progress!');
         }

-        this._transactionInProgress = false;
-        if(this._transactionStack.length) {
-            this.undoStack.push(new Transaction(this._transactionStack));
-            this._transactionStack = [];
+        if(this._currentTransaction.hasTransformations()) {
+            this.undoStack.push(this._currentTransaction);
+            this.trigger('operationEnd');
+        }
+        this._currentTransaction = null;
+    },
+
+    rollbackTransaction: function() {
+        if(!this._currentTransaction) {
+            throw new Error('Transaction rollback requested, but there is no transaction in progress!');

         }
         }

+        this.replaceRoot(this._rollbackBackup);
+        this._rollbackBackup = null;
+        this._currentTransaction = null;
+        this._transformationLevel = 0;

     },
 
     },
 

-    transaction: function(callback, context) {
+    transaction: function(callback, params) {

         var toret;
         var toret;

-        this.startTransaction();
-        toret = callback.call(context);
+        params = params || {};
+        this.startTransaction(params.metadata);
+        try {
+            toret = callback.call(params.context || this);
+        } catch(e) {
+            if(params.error) {
+                params.error(e);
+            }
+            this.rollbackTransaction();
+            return;
+        }

         this.endTransaction();
         this.endTransaction();

+        if(params.success) {
+            params.success(toret);
+        }

         return toret;
     },
 
         return toret;
     },
 


@@ -604,12 +639,28 @@ $.extend(Document.prototype, Backbone.Events, {
             }
             return $document[0];
         }, configurable: true});
             }
             return $document[0];
         }, configurable: true});

+    },
+
+    createFragment: function(Type, params) {
+        if(!Type.prototype instanceof fragments.Fragment) {
+            throw new Error('Can\'t create a fragment: `Type` is not a valid Fragment');
+        }
+        return new Type(this, params);

     }
 });
 
     }
 });
 

-var Transaction = function(transformations) {
+var Transaction = function(transformations, metadata) {

     this.transformations = transformations || [];
     this.transformations = transformations || [];

+    this.metadata = metadata;

 };
 };

+$.extend(Transaction.prototype, {
+    pushTransformation: function(transformation) {
+        this.transformations.push(transformation);
+    },
+    hasTransformations: function() {
+        return this.transformations.length > 0;
+    }
+});

 
 
 return {
 
 
 return {