'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 */
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;
},
return myIdx < parentContents.length - 1 ? parentContents[myIdx+1] : null;
},
- isSurroundedByTextElements: function() {
- var prev = this.prev(),
- next = this.next();
- return prev && (prev.nodeType === Node.TEXT_NODE) && next && (next.nodeType === Node.TEXT_NODE);
+ isSurroundedByTextNodes: function() {
+ return this.isPrecededByTextNode() && this.isFollowedByTextNode();
+ },
+
+ isPrecededByTextNode: function() {
+ var prev = this.prev();
+ return prev && prev.nodeType === Node.TEXT_NODE;
+ },
+
+ isFollowedByTextNode: function() {
+ var next = this.next();
+ return next && next.nodeType === Node.TEXT_NODE;
},
triggerChangeEvent: function(type, metaData, origParent, nodeWasContained) {
return 0;
}
return this.parent().indexOf(this);
+ },
+
+ getNearestElementNode: function() {
+ return this.nodeType === Node.ELEMENT_NODE ? this : this.parent();
}
});
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 = $('<div>');
wrapper.append(this._getXMLDOMToDump());
return this.nativeNode.data;
},
+
+ containsNode: function() {
+ return false;
+ },
+
triggerTextChangeEvent: function() {
var event = new events.ChangeEvent('nodeTextChange', {node: this});
this.document.trigger('change', event);
var Document = function(xml, extensions) {
this.undoStack = [];
this.redoStack = [];
- this._transactionStack = [];
+ this._currentTransaction = null;
this._transformationLevel = 0;
this._nodeMethods = {};
this.loadXML(xml);
};
-$.extend(Document.prototype, Backbone.Events, {
+$.extend(Document.prototype, Backbone.Events, fragments, {
ElementNodeFactory: ElementNode,
TextNodeFactory: TextNode,
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 {
},
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 = [];
}
}
}
},
undo: function() {
- var transformationObject = this.undoStack.pop(),
+ var transaction = this.undoStack.pop(),
doc = this,
transformations, stopAt;
- if(transformationObject) {
+ if(transaction) {
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.
});
this._undoInProgress = false;
- this.redoStack.push(transformationObject);
+ this.redoStack.push(transaction);
+ this.trigger('operationEnd');
}
},
redo: function() {
- var transformationObject = this.redoStack.pop(),
- transformations;
- if(transformationObject) {
+ var transaction = this.redoStack.pop();
+ if(transaction) {
this._transformationLevel++;
- transformations = _.isArray(transformationObject) ? transformationObject : [transformationObject];
- transformations.forEach(function(t) {
+ transaction.transformations.forEach(function(t) {
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!');
}
- this._transactionInProgress = true;
+ this._rollbackBackup = this.root.clone();
+ this._currentTransaction = new Transaction([], metadata);
},
endTransaction: function() {
- if(!this._transactionInProgress) {
+ if(!this._currentTransaction) {
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();
+ if(params.success) {
+ params.success(toret);
+ }
+ return toret;
},
getNodeByPath: function(path) {
}
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;
}
});
fnp / fnpeditor.git / blobdiff