X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/3800336fe528a2f0cd5b4f3c90ed17fdca0bc0c8..a3899fd80710d7faee391844c6cb10a67df4f6cb:/src/smartxml/smartxml.js diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js index 5cadcd7..c158bac 100644 --- a/src/smartxml/smartxml.js +++ b/src/smartxml/smartxml.js @@ -4,24 +4,36 @@ define([ '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 */ +var privateKey = '_smartxml'; + var DocumentNode = function(nativeNode, document) { if(!document) { throw new Error('undefined document for a node'); } this.document = document; + this.object = {}; this._setNativeNode(nativeNode); }; $.extend(DocumentNode.prototype, { + getProperty: function(propName) { + var toret = this.object[propName]; + if(toret && _.isFunction(toret)) { + toret = toret.call(this); + } + return toret; + }, + transform: function(Transformation, args) { var transformation = new Transformation(this.document, this, args); return this.document.transform(transformation); @@ -38,7 +50,7 @@ $.extend(DocumentNode.prototype, { clone.find('*').addBack().each(function() { var el = this, clonedData = $(this).data(); - + $(el).removeData(privateKey); _.pairs(clonedData).forEach(function(pair) { var key = pair[0], value = pair[1]; @@ -78,6 +90,14 @@ $.extend(DocumentNode.prototype, { 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; }, @@ -113,22 +133,27 @@ $.extend(DocumentNode.prototype, { 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) { 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) { + if(type === 'nodeAdded' && !this.document.containsNode(this) && nodeWasContained) { event = new events.ChangeEvent('nodeDetached', {node: node, parent: origParent}); this.document.trigger('change', event); } @@ -139,28 +164,41 @@ $.extend(DocumentNode.prototype, { }, getIndex: function() { + var parent; + if(this.isRoot()) { return 0; } - return this.parent().indexOf(this); + + parent = this.parent(); + return parent ? parent.indexOf(this) : undefined; + }, + + getNearestElementNode: function() { + return this.nodeType === Node.ELEMENT_NODE ? this : this.parent(); } }); var ElementNode = function(nativeNode, document) { DocumentNode.call(this, nativeNode, document); + $(nativeNode).data(privateKey, {node: this}); }; ElementNode.prototype = Object.create(DocumentNode.prototype); $.extend(ElementNode.prototype, { nodeType: Node.ELEMENT_NODE, - setData: function(key, value) { - if(value !== undefined) { - this._$.data(key, value); + setData: function(arg1, arg2) { + if(arguments.length === 2) { + if(_.isUndefined(arg2)) { + this._$.removeData(arg1); + } else { + this._$.data(arg1, arg2); + } } else { this._$.removeData(_.keys(this._$.data())); - this._$.data(key); + this._$.data(arg1); } }, @@ -168,7 +206,9 @@ $.extend(ElementNode.prototype, { if(key) { return this._$.data(key); } - return this._$.data(); + var toret = _.clone(this._$.data()); + delete toret[privateKey]; + return toret; }, getTagName: function() { @@ -210,6 +250,32 @@ $.extend(ElementNode.prototype, { return node && (node.nativeNode === this.nativeNode || node._$.parents().index(this._$) !== -1); }, + getFirstTextNode: function() { + return this._getTextNode('first'); + }, + + getLastTextNode: function() { + return this._getTextNode('last'); + }, + + _getTextNode: function(which) { + var contents = this.contents(), + toret; + if(which === 'last') { + contents = contents.reverse(); + } + contents.some(function(node) { + if(node.nodeType === Node.TEXT_NODE) { + toret = node; + return true; + } + toret = node.getLastTextNode(); + return !!toret; + }); + + return toret; + }, + toXML: function() { var wrapper = $('
'); wrapper.append(this._getXMLDOMToDump()); @@ -224,16 +290,42 @@ $.extend(ElementNode.prototype, { var TextNode = function(nativeNode, document) { DocumentNode.call(this, nativeNode, document); + this._data = Object.create({}); + nativeNode.__smartxmlTextNodeInstance = this; }; TextNode.prototype = Object.create(DocumentNode.prototype); $.extend(TextNode.prototype, { nodeType: Node.TEXT_NODE, + setData: function(arg1, arg2) { + if(arguments.length === 2) { + if(_.isUndefined(arg2)) { + delete this._data[arg1]; + } else { + this._data[arg1] = arg2; + } + } else { + this._data = _.extend({}, arg1); + } + }, + + getData: function(key) { + if(key) { + return this._data[key]; + } + return this._data; + }, + getText: function() { return this.nativeNode.data; }, + + containsNode: function() { + return false; + }, + triggerTextChangeEvent: function() { var event = new events.ChangeEvent('nodeTextChange', {node: this}); this.document.trigger('change', event); @@ -243,7 +335,7 @@ $.extend(TextNode.prototype, { var parseXML = function(xml) { var toret = $($.trim(xml)); - if(!toret.length) { + if(toret.length !== 1) { throw new Error('Unable to parse XML: ' + xml); } return toret[0]; @@ -291,12 +383,20 @@ var Document = function(xml, extensions) { this.loadXML(xml); }; -$.extend(Document.prototype, Backbone.Events, { +$.extend(Document.prototype, Backbone.Events, fragments, { ElementNodeFactory: ElementNode, TextNodeFactory: TextNode, createDocumentNode: function(from) { - if(!(from instanceof Node)) { + var cached; + + if(from instanceof Node) { + /* globals Text */ + cached = from instanceof Text ? from.__smartxmlTextNodeInstance : ($(from).data(privateKey) || {}).node; + if(cached instanceof DocumentNode) { + return cached; + } + } else { if(typeof from === 'string') { from = parseXML(from); this.normalizeXML(from); @@ -479,7 +579,7 @@ $.extend(Document.prototype, Backbone.Events, { if(!this._currentTransaction) { return this.transaction(function() { return this.transform(Transformation, args); - }, this); + }, {context: this}); } if(typeof Transformation === 'function') { @@ -498,8 +598,6 @@ $.extend(Document.prototype, Backbone.Events, { function() { if(this._transformationLevel === 1 && !this._undoInProgress) { this._currentTransaction.pushTransformation(transformation); - } - if(!this._undoInProgress && this._transformationLevel === 1) { this.redoStack = []; } } @@ -524,7 +622,6 @@ $.extend(Document.prototype, Backbone.Events, { 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; @@ -544,6 +641,7 @@ $.extend(Document.prototype, Backbone.Events, { this._undoInProgress = false; this.redoStack.push(transaction); + this.trigger('operationEnd'); } }, redo: function() { @@ -555,14 +653,17 @@ $.extend(Document.prototype, Backbone.Events, { }); this._transformationLevel--; this.undoStack.push(transaction); + this.trigger('operationEnd'); + } }, - startTransaction: function() { + startTransaction: function(metadata) { if(this._currentTransaction) { throw new Error('Nested transactions not supported!'); } - this._currentTransaction = new Transaction([]); + this._rollbackBackup = this.root.clone(); + this._currentTransaction = new Transaction([], metadata); }, endTransaction: function() { @@ -571,22 +672,48 @@ $.extend(Document.prototype, Backbone.Events, { } 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; - 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(); + if(params.success) { + params.success(toret); + } return toret; }, getNodeByPath: function(path) { var toret = this.root; - path.forEach(function(idx) { + path.some(function(idx) { toret = toret.contents()[idx]; + if(!toret) { + return true; + } }); return toret; }, @@ -605,11 +732,19 @@ $.extend(Document.prototype, Backbone.Events, { } 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.metadata = metadata; }; $.extend(Transaction.prototype, { pushTransformation: function(transformation) {