X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/21cd91531dd9c6e88d00da03f6b2f3ad88fb0da0..2961355b46249c0ab918fcc4eb0835ed5ed495a8:/src/smartxml/smartxml.js?ds=sidebyside diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js index 9c233bd..505ab85 100644 --- a/src/smartxml/smartxml.js +++ b/src/smartxml/smartxml.js @@ -33,7 +33,20 @@ $.extend(DocumentNode.prototype, { }, clone: function() { - var clone = this._$.clone(true, true); + var clone = this._$.clone(true, true), + node = this; + clone.find('*').addBack().each(function() { + var el = this, + clonedData = $(this).data(); + + _.pairs(clonedData).forEach(function(pair) { + var key = pair[0], + value = pair[1]; + if(_.isFunction(value.clone)) { + clonedData[key] = value.clone(node.document.createDocumentNode(el)); + } + }); + }); return this.document.createDocumentNode(clone[0]); }, @@ -53,7 +66,7 @@ $.extend(DocumentNode.prototype, { } }); - if(idx !== 'undefined') { + if(idx !== undefined) { nodePath = nodePath.slice(0, idx); } toret = nodePath.map(function(node) {return node.getIndex(); }); @@ -110,6 +123,9 @@ $.extend(DocumentNode.prototype, { var node = (metaData && metaData.node) ? metaData.node : this, event = new events.ChangeEvent(type, $.extend({node: node}, metaData || {})); if(type === 'nodeDetached' || this.document.containsNode(event.meta.node)) { + if(type === 'nodeMoved') { + event.meta.parent = origParent; + } this.document.trigger('change', event); } if((type === 'nodeAdded' || type === 'nodeMoved') && !this.document.containsNode(this) && nodeWasContained) { @@ -190,6 +206,10 @@ $.extend(ElementNode.prototype, { return toret; }, + containsNode: function(node) { + return node && (node.nativeNode === this.nativeNode || node._$.parents().index(this._$) !== -1); + }, + toXML: function() { var wrapper = $('
'); wrapper.append(this._getXMLDOMToDump()); @@ -222,7 +242,12 @@ $.extend(TextNode.prototype, { var parseXML = function(xml) { - return $($.trim(xml))[0]; + var toret = $($.trim(xml)); + if(!toret.length) { + throw new Error('Unable to parse XML: ' + xml); + } + return toret[0]; + }; var registerTransformation = function(desc, name, target) { @@ -245,10 +270,10 @@ var registerMethod = function(methodName, method, target) { }; -var Document = function(xml) { - this.loadXML(xml); +var Document = function(xml, extensions) { this.undoStack = []; this.redoStack = []; + this._currentTransaction = null; this._transformationLevel = 0; this._nodeMethods = {}; @@ -259,6 +284,11 @@ var Document = function(xml) { this._elementNodeTransformations = {}; this.registerExtension(coreTransformations); + + (extensions || []).forEach(function(extension) { + this.registerExtension(extension); + }.bind(this)); + this.loadXML(xml); }; $.extend(Document.prototype, Backbone.Events, { @@ -267,17 +297,25 @@ $.extend(Document.prototype, Backbone.Events, { createDocumentNode: function(from) { if(!(from instanceof Node)) { - if(from.text !== undefined) { - /* globals document */ - from = document.createTextNode(from.text); + if(typeof from === 'string') { + from = parseXML(from); + this.normalizeXML(from); } else { - var node = $('<' + from.tagName + '>'); - - _.keys(from.attrs || {}).forEach(function(key) { - node.attr(key, from.attrs[key]); - }); + if(from.text !== undefined) { + /* globals document */ + from = document.createTextNode(from.text); + } else { + if(!from.tagName) { + throw new Error('tagName missing'); + } + var node = $('<' + from.tagName + '>'); + + _.keys(from.attrs || {}).forEach(function(key) { + node.attr(key, from.attrs[key]); + }); - from = node[0]; + from = node[0]; + } } } var Factory, typeMethods, typeTransformations; @@ -308,17 +346,22 @@ $.extend(Document.prototype, Backbone.Events, { loadXML: function(xml, options) { options = options || {}; this._defineDocumentProperties($(parseXML(xml))); + this.normalizeXML(this.dom); if(!options.silent) { this.trigger('contentSet'); } }, + normalizeXML: function(nativeNode) { + void(nativeNode); // noop + }, + toXML: function() { return this.root.toXML(); }, containsNode: function(node) { - return this.root && (node.nativeNode === this.root.nativeNode || node._$.parents().index(this.root._$) !== -1); + return this.root && this.root.containsNode(node); }, getSiblingParents: function(params) { @@ -330,13 +373,17 @@ $.extend(Document.prototype, Backbone.Events, { return noSiblingParents; } - var i; - for(i = 0; i < Math.min(parents1.length, parents2.length); i++) { + var stop = Math.min(parents1.length, parents2.length), + i; + for(i = 0; i < stop; i++) { if(parents1[i].sameNode(parents2[i])) { continue; } break; } + if(i === stop) { + i--; + } return {node1: parents1[i], node2: parents2[i]}; }, @@ -405,9 +452,36 @@ $.extend(Document.prototype, Backbone.Events, { }); }, + ifChanged: function(context, action, documentChangedHandler, documentUnchangedHandler) { + var hasChanged = false, + changeMonitor = function() { + hasChanged = true; + }; + + this.on('change', changeMonitor); + action.call(context); + this.off('change', changeMonitor); + + if(hasChanged) { + if(documentChangedHandler) { + documentChangedHandler.call(context); + } + } else { + if(documentUnchangedHandler) { + documentUnchangedHandler.call(context); + } + } + }, + transform: function(Transformation, args) { var toret, transformation; + if(!this._currentTransaction) { + return this.transaction(function() { + return this.transform(Transformation, args); + }, this); + } + if(typeof Transformation === 'function') { transformation = new Transformation(this, this, args); } else { @@ -415,37 +489,98 @@ $.extend(Document.prototype, Backbone.Events, { } if(transformation) { this._transformationLevel++; - toret = transformation.run({beUndoable:this._transformationLevel === 1}); - if(this._transformationLevel === 1 && !this._undoInProgress) { - this.undoStack.push(transformation); - } + + this.ifChanged( + this, + function() { + toret = transformation.run({beUndoable:this._transformationLevel === 1}); + }, + function() { + if(this._transformationLevel === 1 && !this._undoInProgress) { + this._currentTransaction.pushTransformation(transformation); + } + if(!this._undoInProgress && this._transformationLevel === 1) { + this.redoStack = []; + } + } + ); + this._transformationLevel--; - if(!this._undoInProgress) { - this.redoStack = []; - } return toret; } else { throw new Error('Transformation ' + transformation + ' doesn\'t exist!'); } }, undo: function() { - var transformation = this.undoStack.pop(); - if(transformation) { + var transaction = this.undoStack.pop(), + doc = this, + transformations, stopAt; + + if(transaction) { this._undoInProgress = true; - transformation.undo(); + + // 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. + stopAt = undefined; + transformations.some(function(t, idx) { + if(!t.undo && t.getChangeRoot().sameNode(doc.root)) { + stopAt = idx; + return true; //break + } + }); + if(stopAt !== undefined) { + // We will get away with undoing only this transformations as the one at stopAt reverses the whole document. + transformations = transformations.slice(0, stopAt+1); + } + } + + transformations.reverse(); + transformations.forEach(function(t) { + t.undo(); + }); + this._undoInProgress = false; - this.redoStack.push(transformation); + this.redoStack.push(transaction); } }, redo: function() { - var transformation = this.redoStack.pop(); - if(transformation) { + var transaction = this.redoStack.pop(); + if(transaction) { this._transformationLevel++; - transformation.run({beUndoable: true}); + transaction.transformations.forEach(function(t) { + t.run({beUndoable: true}); + }); this._transformationLevel--; - this.undoStack.push(transformation); + this.undoStack.push(transaction); + } + }, + + startTransaction: function(metadata) { + if(this._currentTransaction) { + throw new Error('Nested transactions not supported!'); + } + this._currentTransaction = new Transaction([], metadata); + }, + endTransaction: function() { + if(!this._currentTransaction) { + throw new Error('End of transaction requested, but there is no transaction in progress!'); } + if(this._currentTransaction.hasTransformations()) { + this.undoStack.push(this._currentTransaction); + } + this._currentTransaction = null; + }, + + transaction: function(callback, context, metadata) { + var toret; + this.startTransaction(metadata); + toret = callback.call(context); + this.endTransaction(); + return toret; }, getNodeByPath: function(path) { @@ -459,14 +594,33 @@ $.extend(Document.prototype, Backbone.Events, { _defineDocumentProperties: function($document) { var doc = this; Object.defineProperty(doc, 'root', {get: function() { + if(!$document) { + return null; + } return doc.createDocumentNode($document[0]); }, configurable: true}); Object.defineProperty(doc, 'dom', {get: function() { + if(!$document) { + return null; + } return $document[0]; }, configurable: true}); } }); +var Transaction = function(transformations, metadata) { + this.transformations = transformations || []; + this.metadata = metadata; +}; +$.extend(Transaction.prototype, { + pushTransformation: function(transformation) { + this.transformations.push(transformation); + }, + hasTransformations: function() { + return this.transformations.length > 0; + } +}); + return { documentFromXML: function(xml) {