X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/0c978bca67983e93096a8e744b53e50861a9333d..becdfc02dc816d594bcad03cbcbab7aac550da5f:/src/smartxml/smartxml.js diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js index 7b59b18..d168e6d 100644 --- a/src/smartxml/smartxml.js +++ b/src/smartxml/smartxml.js @@ -2,36 +2,14 @@ define([ 'libs/jquery', 'libs/underscore', 'libs/backbone', - 'smartxml/events' -], function($, _, Backbone, events) { + 'smartxml/events', + 'smartxml/transformations', + 'smartxml/core' +], function($, _, Backbone, events, transformations, coreTransformations) { 'use strict'; /* globals Node */ -var TEXT_NODE = Node.TEXT_NODE; - - -var INSERTION = function(implementation) { - var toret = function(node) { - var insertion = this.getNodeInsertion(node), - nodeParent; - if(!(this.document.containsNode(this))) { - nodeParent = insertion.ofNode.parent(); - } - implementation.call(this, insertion.ofNode.nativeNode); - this.triggerChangeEvent(insertion.insertsNew ? 'nodeAdded' : 'nodeMoved', {node: insertion.ofNode}, nodeParent); - return insertion.ofNode; - }; - return toret; -}; - -// var TRANSFORMATION = function(name, implementation) { -// //implementation._isTransformation = true; - -// createDumbTransformation(name, implementation, ) - -// return implementation; -// }; var DocumentNode = function(nativeNode, document) { if(!document) { @@ -43,24 +21,40 @@ var DocumentNode = function(nativeNode, document) { }; $.extend(DocumentNode.prototype, { + + transform: function(Transformation, args) { + var transformation = new Transformation(this.document, this, args); + return this.document.transform(transformation); + }, + _setNativeNode: function(nativeNode) { this.nativeNode = nativeNode; this._$ = $(nativeNode); }, clone: function() { - var clone = this._$.clone(true, true); - // clone.find('*').addBack().each(function() { - // var n = $(this); - // if(n.data('canvasElement')) { - // n.data('canvasElement', $.extend(true, {}, n.data('canvasElement'))); - // n.data('canvasElement').$element = n.data('canvasElement').$element.clone(true, true); - // } - // }); + var clone = this._$.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]); }, getPath: function(ancestor) { + if(!(this.document.containsNode(this))) { + return null; + } + var nodePath = [this].concat(this.parents()), toret, idx; ancestor = ancestor || this.document.root; @@ -84,23 +78,6 @@ $.extend(DocumentNode.prototype, { return this.document.root.sameNode(this); }, - detach: function() { - var parent = this.parent(); - this._$.detach(); - this.triggerChangeEvent('nodeDetached', {parent: parent}); - return this; - }, - - replaceWith: function(node) { - var toret; - if(this.isRoot()) { - return this.document.replaceRoot(node); - } - toret = this.after(node); - this.detach(); - return toret; - }, - sameNode: function(otherNode) { return !!(otherNode) && this.nativeNode === otherNode.nativeNode; }, @@ -142,46 +119,13 @@ $.extend(DocumentNode.prototype, { return prev && (prev.nodeType === Node.TEXT_NODE) && next && (next.nodeType === Node.TEXT_NODE); }, - after: INSERTION(function(nativeNode) { - return this._$.after(nativeNode); - }), - - before: INSERTION(function(nativeNode) { - return this._$.before(nativeNode); - }), - - wrapWith: function(node) { - var insertion = this.getNodeInsertion(node); - if(this.parent()) { - this.before(insertion.ofNode); - } - insertion.ofNode.append(this); - return insertion.ofNode; - }, - - /** - * Removes parent of a node if node has no siblings. - */ - unwrap: function() { - if(this.isRoot()) { - return; - } - var parent = this.parent(), - grandParent; - if(parent.contents().length === 1) { - grandParent = parent.parent(); - parent.unwrapContent(); - return grandParent; - } - }, - - triggerChangeEvent: function(type, metaData, origParent) { + triggerChangeEvent: function(type, metaData, origParent, nodeWasContained) { 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)) { this.document.trigger('change', event); } - if((type === 'nodeAdded' || type === 'nodeMoved') && !(this.document.containsNode(this))) { + if((type === 'nodeAdded' || type === 'nodeMoved') && !this.document.containsNode(this) && nodeWasContained) { event = new events.ChangeEvent('nodeDetached', {node: node, parent: origParent}); this.document.trigger('change', event); } @@ -199,6 +143,7 @@ $.extend(DocumentNode.prototype, { } }); + var ElementNode = function(nativeNode, document) { DocumentNode.call(this, nativeNode, document); }; @@ -207,16 +152,6 @@ ElementNode.prototype = Object.create(DocumentNode.prototype); $.extend(ElementNode.prototype, { nodeType: Node.ELEMENT_NODE, - detach: function() { - var next; - if(this.parent() && this.isSurroundedByTextElements()) { - next = this.next(); - this.prev().appendText(next.getText()); - next.detach(); - } - return DocumentNode.prototype.detach.call(this); - }, - setData: function(key, value) { if(value !== undefined) { this._$.data(key, value); @@ -237,12 +172,18 @@ $.extend(ElementNode.prototype, { return this.nativeNode.tagName.toLowerCase(); }, - contents: function() { + contents: function(selector) { var toret = [], document = this.document; - this._$.contents().each(function() { - toret.push(document.createDocumentNode(this)); - }); + if(selector) { + this._$.children(selector).each(function() { + toret.push(document.createDocumentNode(this)); + }); + } else { + this._$.contents().each(function() { + toret.push(document.createDocumentNode(this)); + }); + } return toret; }, @@ -250,37 +191,10 @@ $.extend(ElementNode.prototype, { return this._$.contents().index(node._$); }, - setTag: function(tagName) { - var node = this.document.createDocumentNode({tagName: tagName}), - oldTagName = this.getTagName(), - myContents = this._$.contents(); - - this.getAttrs().forEach(function(attribute) { - node.setAttr(attribute.name, attribute.value, true); - }); - node.setData(this.getData()); - - if(this.sameNode(this.document.root)) { - defineDocumentProperties(this.document, node._$); - } - this._$.replaceWith(node._$); - this._setNativeNode(node._$[0]); - this._$.append(myContents); - this.triggerChangeEvent('nodeTagChange', {oldTagName: oldTagName, newTagName: this.getTagName()}); - }, - getAttr: function(name) { return this._$.attr(name); }, - setAttr: function(name, value, silent) { - var oldVal = this.getAttr(name); - this._$.attr(name, value); - if(!silent) { - this.triggerChangeEvent('nodeAttrChange', {attr: name, oldVal: oldVal, newVal: value}); - } - }, - getAttrs: function() { var toret = []; for(var i = 0; i < this.nativeNode.attributes.length; i++) { @@ -289,76 +203,6 @@ $.extend(ElementNode.prototype, { return toret; }, - append: INSERTION(function(nativeNode) { - this._$.append(nativeNode); - }), - - prepend: INSERTION(function(nativeNode) { - this._$.prepend(nativeNode); - }), - - insertAtIndex: function(nativeNode, index) { - var contents = this.contents(); - if(index < contents.length) { - return contents[index].before(nativeNode); - } else if(index === contents.length) { - return this.append(nativeNode); - } - }, - - unwrapContent: function() { - var parent = this.parent(); - if(!parent) { - return; - } - - var myContents = this.contents(), - myIdx = parent.indexOf(this); - - - if(myContents.length === 0) { - return this.detach(); - } - - var prev = this.prev(), - next = this.next(), - moveLeftRange, moveRightRange, leftMerged; - - if(prev && (prev.nodeType === TEXT_NODE) && (myContents[0].nodeType === TEXT_NODE)) { - prev.appendText(myContents[0].getText()); - myContents[0].detach(); - moveLeftRange = true; - leftMerged = true; - } else { - leftMerged = false; - } - - if(!(leftMerged && myContents.length === 1)) { - var lastContents = _.last(myContents); - if(next && (next.nodeType === TEXT_NODE) && (lastContents.nodeType === TEXT_NODE)) { - next.prependText(lastContents.getText()); - lastContents.detach(); - moveRightRange = true; - } - } - - var childrenLength = this.contents().length; - this.contents().forEach(function(child) { - this.before(child); - }.bind(this)); - - this.detach(); - - return { - element1: parent.contents()[myIdx + (moveLeftRange ? -1 : 0)], - element2: parent.contents()[myIdx + childrenLength-1 + (moveRightRange ? 1 : 0)] - }; - }, - - wrapText: function(params) { - return this.document._wrapText(_.extend({inside: this}, params)); - }, - toXML: function() { var wrapper = $('
'); wrapper.append(this._getXMLDOMToDump()); @@ -370,6 +214,7 @@ $.extend(ElementNode.prototype, { } }); + var TextNode = function(nativeNode, document) { DocumentNode.call(this, nativeNode, document); }; @@ -382,74 +227,6 @@ $.extend(TextNode.prototype, { return this.nativeNode.data; }, - setText: function(text) { - console.log('smartxml: ' + text); - this.nativeNode.data = text; - this.triggerTextChangeEvent(); - }, - - appendText: function(text) { - this.nativeNode.data = this.nativeNode.data + text; - this.triggerTextChangeEvent(); - }, - - prependText: function(text) { - this.nativeNode.data = text + this.nativeNode.data; - this.triggerTextChangeEvent(); - }, - - wrapWith: function(desc) { - if(typeof desc.start === 'number' && typeof desc.end === 'number') { - return this.document._wrapText({ - inside: this.parent(), - textNodeIdx: this.parent().indexOf(this), - offsetStart: Math.min(desc.start, desc.end), - offsetEnd: Math.max(desc.start, desc.end), - _with: {tagName: desc.tagName, attrs: desc.attrs} - }); - } else { - return DocumentNode.prototype.wrapWith.call(this, desc); - } - }, - - split: function(params) { - var parentElement = this.parent(), - passed = false, - succeedingChildren = [], - prefix = this.getText().substr(0, params.offset), - suffix = this.getText().substr(params.offset); - - parentElement.contents().forEach(function(child) { - if(passed) { - succeedingChildren.push(child); - } - if(child.sameNode(this)) { - passed = true; - } - }.bind(this)); - - if(prefix.length > 0) { - this.setText(prefix); - } - else { - this.detach(); - } - - var attrs = {}; - parentElement.getAttrs().forEach(function(attr) {attrs[attr.name] = attr.value; }); - var newElement = this.document.createDocumentNode({tagName: parentElement.getTagName(), attrs: attrs}); - parentElement.after(newElement); - - if(suffix.length > 0) { - newElement.append({text: suffix}); - } - succeedingChildren.forEach(function(child) { - newElement.append(child); - }); - - return {first: parentElement, second: newElement}; - }, - triggerTextChangeEvent: function() { var event = new events.ChangeEvent('nodeTextChange', {node: this}); this.document.trigger('change', event); @@ -458,13 +235,53 @@ $.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 Document = function(xml) { - this.loadXML(xml); +var registerTransformation = function(desc, name, target) { + var Transformation = transformations.createContextTransformation(desc, name); + target[name] = function() { + var instance = this, + args = Array.prototype.slice.call(arguments, 0); + return instance.transform(Transformation, args); + }; +}; + +var registerMethod = function(methodName, method, target) { + if(target[methodName]) { + throw new Error('Cannot extend {target} with method name {methodName}. Name already exists.' + .replace('{target}', target) + .replace('{methodName}', methodName) + ); + } + target[methodName] = method; +}; + + +var Document = function(xml, extensions) { this.undoStack = []; this.redoStack = []; + this._transactionStack = []; + this._transformationLevel = 0; + + this._nodeMethods = {}; + this._textNodeMethods = {}; + this._elementNodeMethods = {}; + this._nodeTransformations = {}; + this._textNodeTransformations = {}; + this._elementNodeTransformations = {}; + + this.registerExtension(coreTransformations); + + (extensions || []).forEach(function(extension) { + this.registerExtension(extension); + }.bind(this)); + this.loadXML(xml); }; $.extend(Document.prototype, Backbone.Events, { @@ -473,36 +290,65 @@ $.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]); - }); - - from = node[0]; + 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]; + } } } - var Factory; + var Factory, typeMethods, typeTransformations; if(from.nodeType === Node.TEXT_NODE) { Factory = this.TextNodeFactory; + typeMethods = this._textNodeMethods; + typeTransformations = this._textNodeTransformations; } else if(from.nodeType === Node.ELEMENT_NODE) { Factory = this.ElementNodeFactory; + typeMethods = this._elementNodeMethods; + typeTransformations = this._elementNodeTransformations; } - return new Factory(from, this); + var toret = new Factory(from, this); + _.extend(toret, this._nodeMethods); + _.extend(toret, typeMethods); + + _.extend(toret, this._nodeTransformations); + _.extend(toret, typeTransformations); + + toret.__super__ = _.extend({}, this._nodeMethods, this._nodeTransformations); + _.keys(toret.__super__).forEach(function(key) { + toret.__super__[key] = _.bind(toret.__super__[key], toret); + }); + + return toret; }, loadXML: function(xml, options) { options = options || {}; - defineDocumentProperties(this, $(parseXML(xml))); + this._defineDocumentProperties($(parseXML(xml))); + this.normalizeXML(this.dom); if(!options.silent) { this.trigger('contentSet'); } }, + normalizeXML: function(nativeNode) { + void(nativeNode); // noop + }, + toXML: function() { return this.root.toXML(); }, @@ -511,42 +357,6 @@ $.extend(Document.prototype, Backbone.Events, { return this.root && (node.nativeNode === this.root.nativeNode || node._$.parents().index(this.root._$) !== -1); }, - wrapNodes: function(params) { - if(!(params.node1.parent().sameNode(params.node2.parent()))) { - throw new Error('Wrapping non-sibling nodes not supported.'); - } - - var parent = params.node1.parent(), - parentContents = parent.contents(), - wrapper = this.createDocumentNode({ - tagName: params._with.tagName, - attrs: params._with.attrs}), - idx1 = parent.indexOf(params.node1), - idx2 = parent.indexOf(params.node2); - - if(idx1 > idx2) { - var tmp = idx1; - idx1 = idx2; - idx2 = tmp; - } - - var insertingMethod, insertingTarget; - if(idx1 === 0) { - insertingMethod = 'prepend'; - insertingTarget = parent; - } else { - insertingMethod = 'after'; - insertingTarget = parentContents[idx1-1]; - } - - for(var i = idx1; i <= idx2; i++) { - wrapper.append(parentContents[i].detach()); - } - - insertingTarget[insertingMethod](wrapper); - return wrapper; - }, - getSiblingParents: function(params) { var parents1 = [params.node1].concat(params.node1.parents()).reverse(), parents2 = [params.node2].concat(params.node2.parents()).reverse(), @@ -566,58 +376,7 @@ $.extend(Document.prototype, Backbone.Events, { return {node1: parents1[i], node2: parents2[i]}; }, - _wrapText: function(params) { - params = _.extend({textNodeIdx: 0}, params); - if(typeof params.textNodeIdx === 'number') { - params.textNodeIdx = [params.textNodeIdx]; - } - - var contentsInside = params.inside.contents(), - idx1 = Math.min.apply(Math, params.textNodeIdx), - idx2 = Math.max.apply(Math, params.textNodeIdx), - textNode1 = contentsInside[idx1], - textNode2 = contentsInside[idx2], - sameNode = textNode1.sameNode(textNode2), - prefixOutside = textNode1.getText().substr(0, params.offsetStart), - prefixInside = textNode1.getText().substr(params.offsetStart), - suffixInside = textNode2.getText().substr(0, params.offsetEnd), - suffixOutside = textNode2.getText().substr(params.offsetEnd) - ; - - if(!(textNode1.parent().sameNode(textNode2.parent()))) { - throw new Error('Wrapping text in non-sibling text nodes not supported.'); - } - - var wrapperElement = this.createDocumentNode({tagName: params._with.tagName, attrs: params._with.attrs}); - textNode1.after(wrapperElement); - textNode1.detach(); - - if(prefixOutside.length > 0) { - wrapperElement.before({text:prefixOutside}); - } - if(sameNode) { - var core = textNode1.getText().substr(params.offsetStart, params.offsetEnd - params.offsetStart); - wrapperElement.append({text: core}); - } else { - textNode2.detach(); - if(prefixInside.length > 0) { - wrapperElement.append({text: prefixInside}); - } - for(var i = idx1 + 1; i < idx2; i++) { - wrapperElement.append(contentsInside[i]); - } - if(suffixInside.length > 0) { - wrapperElement.append({text: suffixInside}); - } - } - if(suffixOutside.length > 0) { - wrapperElement.after({text: suffixOutside}); - } - return wrapperElement; - }, - trigger: function() { - //console.log('trigger: ' + arguments[0] + (arguments[1] ? ', ' + arguments[1].type : '')); Backbone.Events.trigger.apply(this, arguments); }, @@ -633,243 +392,178 @@ $.extend(Document.prototype, Backbone.Events, { return insertion; }, - replaceRoot: function(node) { - var insertion = this.getNodeInsertion(node); - this.root.detach(); - defineDocumentProperties(this, insertion.ofNode._$); - insertion.ofNode.triggerChangeEvent('nodeAdded'); - return insertion.ofNode; - }, - - transform: function(transformationName, args) { - console.log('transform'); - var Transformation = transformations[transformationName], - transformation; - if(Transformation) { - transformation = new Transformation(args); - transformation.run(); - this.undoStack.push(transformation); - console.log('clearing redo stack'); - this.redoStack = []; - } else { - throw new Error('Transformation ' + transformationName + ' doesn\'t exist!'); - } + registerMethod: function(methodName, method, dstName) { + var doc = this; + var destination = { + document: doc, + documentNode: doc._nodeMethods, + textNode: doc._textNodeMethods, + elementNode: doc._elementNodeMethods + }[dstName]; + registerMethod(methodName, method, destination); + }, + + registerTransformation: function(desc, name, dstName) { + var doc = this; + var destination = { + document: doc, + documentNode: doc._nodeTransformations, + textNode: doc._textNodeTransformations, + elementNode: doc._elementNodeTransformations + }[dstName]; + registerTransformation(desc, name, destination); + }, + + registerExtension: function(extension) { + var doc = this; + + ['document', 'documentNode', 'elementNode', 'textNode'].forEach(function(dstName) { + var dstExtension = extension[dstName]; + if(dstExtension) { + if(dstExtension.methods) { + _.pairs(dstExtension.methods).forEach(function(pair) { + var methodName = pair[0], + method = pair[1]; + + doc.registerMethod(methodName, method, dstName); + + }); + } + + if(dstExtension.transformations) { + _.pairs(dstExtension.transformations).forEach(function(pair) { + var name = pair[0], + desc = pair[1]; + doc.registerTransformation(desc, name, dstName); + }); + } + } + }); }, - undo: function() { - var transformation = this.undoStack.pop(); - if(transformation) { - transformation.undo(); - this.redoStack.push(transformation); + + transform: function(Transformation, args) { + var toret, transformation; + + if(typeof Transformation === 'function') { + transformation = new Transformation(this, this, args); + } else { + transformation = Transformation; } - }, - redo: function() { - var transformation = this.redoStack.pop(); if(transformation) { - transformation.run(); - this.undoStack.push(transformation); + this._transformationLevel++; + toret = transformation.run({beUndoable:this._transformationLevel === 1}); + 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.redoStack = []; + } + this._transformationLevel--; + return toret; + } else { + throw new Error('Transformation ' + transformation + ' doesn\'t exist!'); } }, + undo: function() { + var transformationObject = this.undoStack.pop(), + doc = this, + transformations, stopAt; - getNodeByPath: function(path) { - var toret = this.root; - path.forEach(function(idx) { - toret = toret.contents()[idx]; - }); - return toret; - } -}); - -var defineDocumentProperties = function(doc, $document) { - Object.defineProperty(doc, 'root', {get: function() { - return doc.createDocumentNode($document[0]); - }, configurable: true}); - Object.defineProperty(doc, 'dom', {get: function() { - return $document[0]; - }, configurable: true}); -}; - - -// var registerTransformationsFromObject = function(object) { -// _.values(object).filter(function(val) { -// return typeof val === 'function' && val._isTransformation; -// }) -// .forEach(function(val) { -// registerTransformation(val._transformationName, val, object); -// }); -// }; -// registerTransformationsFromObject(ElementNode.prototype); -// registerTransformationsFromObject(TextNode.prototype); -// registerTransformationsFromObject(Document.prototype); - -// var Transformation = function() { -// }; -// $.extend(Transformation.prototype, { - -// }); - - -// var createDumbTransformation = function(impl, contextObject) { -// var DumbTransformation = function(args) { -// this.args = this.args; -// }; -// DumbTransformation.prototype = Object.create(Transformation.prototype); -// $.extend(DumbTransformation.prototype, { -// run: function() { -// impl.apply(contextObject, this.args); -// } -// }); - -// return DumbTransformation; - - -// }; + if(transformationObject) { + this._undoInProgress = true; -var transformations = {}; -// var registerTransformation = function(name, impl, contextObject) { -// if(typeof impl === 'function') { -// transformations[name] = createDumbTransformation(impl, contextObject); -// } -// }; + if(_.isArray(transformationObject)) { + // We will modify this array in a minute so make sure we work on a copy. + transformations = transformationObject.slice(0); + } else { + // Lets normalize single transformation to a transaction containing one transformation. + transformations = [transformationObject]; + } -// registerTransformation('detachx', DocumentNode.prototype.detach, ) + if(transformations.length > 1) { + // In case of real transactions we don't want to run undo on all of transformations if we don't have to. + stopAt = undefined; + transformations.some(function(t, idx) { + if(!t.undo && t.getChangeRoot().sameNode(doc.root)) { + stopAt = idx; + return true; //break + } + }); + if(stopAt !== undefined) { + // We will get away with undoing only this transformations as the one at stopAt reverses the whole document. + transformations = transformations.slice(0, stopAt+1); + } + } + transformations.reverse(); + transformations.forEach(function(t) { + t.undo(); + }); -// 1. detach via totalny fallback -var DetachNodeTransformation = function(args) { - this.node = args.node; - this.document = this.node.document; -}; -$.extend(DetachNodeTransformation.prototype, { - run: function() { - this.oldRoot = this.node.document.root.clone(); - this.path = this.node.getPath(); - this.node.detach(); // @TS - + this._undoInProgress = false; + this.redoStack.push(transformationObject); + } }, - undo: function() { - this.document.root.replaceWith(this.oldRoot); // this.getDocument? - this.node = this.document.getNodeByPath(this.path); - } -}); -transformations['detach'] = DetachNodeTransformation; - -//2. detach via wskazanie changeroot - -var Detach2NodeTransformation = function(args) { - this.nodePath = args.node.getPath(); - this.document = args.node.document; -}; -$.extend(Detach2NodeTransformation.prototype, { - run: function() { - var node = this.document.getNodeByPath(this.nodePath), - root = node.parent() ? node.parent() : this.document.root; - - this.rootPath = root.getPath(); - this.oldRoot = (root).clone(); - node.detach(); + redo: function() { + var transformationObject = this.redoStack.pop(), + transformations; + if(transformationObject) { + this._transformationLevel++; + transformations = _.isArray(transformationObject) ? transformationObject : [transformationObject]; + transformations.forEach(function(t) { + t.run({beUndoable: true}); + }); + this._transformationLevel--; + this.undoStack.push(transformationObject); + } }, - undo: function() { - this.document.getNodeByPath(this.rootPath).replaceWith(this.oldRoot); - } -}); -//transformations['detach2'] = Detach2NodeTransformation; - -//2a. generyczna transformacja - -var createTransformation = function(desc) { - var NodeTransformation = function(args) { - this.nodePath = args.node.getPath(); - this.document = args.node.document; - this.args = args; - }; - $.extend(NodeTransformation.prototype, { - run: function() { - var node = this.document.getNodeByPath(this.nodePath), - root; - - if(desc.getRoot) { - root = desc.getRoot(node); - } else { - root = this.document.root; - } - - this.rootPath = root.getPath(); - this.oldRoot = (root).clone(); - desc.impl.call(node, this.args); - }, - undo: function() { - this.document.getNodeByPath(this.rootPath).replaceWith(this.oldRoot); + startTransaction: function() { + if(this._transactionInProgress) { + throw new Error('Nested transactions not supported!'); } - }); - - return NodeTransformation; -} - -transformations['detach2'] = createTransformation({ - // impl: function() { - // //this.setAttr('class', 'cite'); // - // }, - impl: ElementNode.prototype.detach, - getRoot: function(node) { - return node.parent(); - } - -}); - -transformations['setText'] = createTransformation({ - impl: function(args) { - this.setText(args.text) + this._transactionInProgress = true; }, - getRoot: function(node) { - return node; - } - -}); - -//3. detach z pełnym własnym redo -var Detach3NodeTransformation = function(args) { - this.node = args.node; - this.document = this.node.document; -}; -$.extend(Detach3NodeTransformation.prototype, { - run: function() { - //this.index = this.node.getIndex(); - //this.parent = this.node.parent(); - - this.path = this.node.getPath(); - if(this.node.isSurroundedByTextElements()) { - this.prevText = this.node.prev().getText(); - this.nextText = this.node.next().getText(); - this.merge = true; - } else { - this.prevText = this.nextText = null; - this.merge = false; + endTransaction: function() { + if(!this._transactionInProgress) { + 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 = []; + } + }, - this.node.detach(); + getNodeByPath: function(path) { + var toret = this.root; + path.forEach(function(idx) { + toret = toret.contents()[idx]; + }); + return toret; }, - undo: function() { - var parent = this.document.getNodeByPath(this.path.slice(0,-1)), - idx = _.last(this.path); - var inserted = parent.insertAtIndex(this.node, idx); - if(this.merge) { - if(inserted.next()) { - inserted.before({text: this.prevText}); - inserted.next().setText(this.nextText); - } else { - inserted.prev().setText(this.prevText); - inserted.after({text: this.nextText}); - } - } + + _defineDocumentProperties: function($document) { + var doc = this; + Object.defineProperty(doc, 'root', {get: function() { + return doc.createDocumentNode($document[0]); + }, configurable: true}); + Object.defineProperty(doc, 'dom', {get: function() { + return $document[0]; + }, configurable: true}); } }); -transformations['detach3'] = Detach3NodeTransformation; + return { documentFromXML: function(xml) { - return new Document(xml); + var doc = new Document(xml); + return doc; }, elementNodeFromXML: function(xml) { @@ -878,7 +572,8 @@ return { Document: Document, DocumentNode: DocumentNode, - ElementNode: ElementNode + ElementNode: ElementNode, + TextNode: TextNode }; }); \ No newline at end of file