Merging in actions branch

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

diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js
index 203bdb2..3ee49b7 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 +79,14 @@ $.extend(DocumentNode.prototype, {
         return this.document.root.sameNode(this);
     },
 
         return this.document.root.sameNode(this);
     },
 

+    isInDocument: function() {
+        return this.document.containsNode(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 +152,10 @@ $.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();

     }
 });
 
     }
 });
 


@@ -210,6 +223,22 @@ $.extend(ElementNode.prototype, {
         return node && (node.nativeNode === this.nativeNode || node._$.parents().index(this._$) !== -1);
     },
 
         return node && (node.nativeNode === this.nativeNode || node._$.parents().index(this._$) !== -1);
     },
 

+    getLastTextNode: function() {
+        var contents = this.contents(),
+            toret;
+
+        contents.reverse().some(function(node) {
+            if(node.nodeType === Node.TEXT_NODE) {
+                toret = node;
+                return true;
+            }
+            toret = node.getLastTextNode();
+            return !!toret;
+        });
+
+        return toret;
+    },
+

     toXML: function() {
         var wrapper = $('<div>');
         wrapper.append(this._getXMLDOMToDump());
     toXML: function() {
         var wrapper = $('<div>');
         wrapper.append(this._getXMLDOMToDump());


@@ -234,6 +263,11 @@ $.extend(TextNode.prototype, {
         return this.nativeNode.data;
     },
 
         return this.nativeNode.data;
     },
 

+
+    containsNode: function() {
+        return false;
+    },
+

     triggerTextChangeEvent: function() {
         var event = new events.ChangeEvent('nodeTextChange', {node: this});
         this.document.trigger('change', event);
     triggerTextChangeEvent: function() {
         var event = new events.ChangeEvent('nodeTextChange', {node: this});
         this.document.trigger('change', event);


@@ -273,7 +307,7 @@ 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 +325,7 @@ 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 +510,12 @@ $.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 +531,7 @@ $.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(transformation);
-                        }
-                    }
-                    if(!this._undoInProgress && this._transformationLevel === 1) {
+                        this._currentTransaction.pushTransformation(transformation);

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


@@ -510,20 +544,15 @@ $.extend(Document.prototype, Backbone.Events, {
         }
     },
     undo: function() {
         }
     },
     undo: function() {

-        var transformationObject = this.undoStack.pop(),
+        var transaction = this.undoStack.pop(),

             doc = this,
             transformations, stopAt;
 
             doc = this,
             transformations, stopAt;
 

-        if(transformationObject) {
+        if(transaction) {

             this._undoInProgress = true;
 
             this._undoInProgress = true;
 

-            if(_.isArray(transformationObject)) {
-                // We will modify this array in a minute so make sure we work on a copy.
-                transformations = transformationObject.slice(0);
-            } else {
-                // Lets normalize single transformation to a transaction containing one transformation.
-                transformations = [transformationObject];
-            }
+            // We will modify this array in a minute so make sure we work on a copy.
+            transformations = transaction.transformations.slice(0);

 
             if(transformations.length > 1) {
                 // In case of real transactions we don't want to run undo on all of transformations if we don't have to.
 
             if(transformations.length > 1) {
                 // In case of real transactions we don't want to run undo on all of transformations if we don't have to.


@@ -546,45 +575,71 @@ $.extend(Document.prototype, Backbone.Events, {
             });
 
             this._undoInProgress = false;
             });
 
             this._undoInProgress = false;

-            this.redoStack.push(transformationObject);
+            this.redoStack.push(transaction);
+            this.trigger('operationEnd');

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

-        var transformationObject = this.redoStack.pop(),
-            transformations;
-        if(transformationObject) {
+        var transaction = this.redoStack.pop();
+        if(transaction) {

             this._transformationLevel++;
             this._transformationLevel++;

-            transformations = _.isArray(transformationObject) ? transformationObject : [transformationObject];
-            transformations.forEach(function(t) {
+            transaction.transformations.forEach(function(t) {

                 t.run({beUndoable: true});
             });
             this._transformationLevel--;
                 t.run({beUndoable: true});
             });
             this._transformationLevel--;

-            this.undoStack.push(transformationObject);
+            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(this._transactionStack);
-            this._transactionStack = [];
+        if(this._currentTransaction.hasTransformations()) {
+            this.undoStack.push(this._currentTransaction);
+            this.trigger('operationEnd');

         }
         }

+        this._currentTransaction = null;

     },
 
     },
 

-    transaction: function(callback, context) {
-        this.startTransaction();
-        callback.call(context);
+    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, params) {
+        var toret;
+        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;

     },
 
     getNodeByPath: function(path) {
     },
 
     getNodeByPath: function(path) {


@@ -609,6 +664,26 @@ $.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, metadata) {
+    this.transformations = transformations || [];
+    this.metadata = metadata;
+};
+$.extend(Transaction.prototype, {
+    pushTransformation: function(transformation) {
+        this.transformations.push(transformation);
+    },
+    hasTransformations: function() {
+        return this.transformations.length > 0;

     }
 });
 
     }
 });