+ it('leaves empty copy of ElementNode if splitting at the very beginning', function() {
+ var doc = getDocumentFromXML('<section><header>Some header</header></section>'),
+ section = doc.root,
+ text = section.contents()[0].contents()[0];
+
+ text.split({offset: 0});
+
+ var header1 = section.contents()[0];
+ var header2 = section.contents()[1];
+
+ expect(header1.contents().length).to.equal(0);
+ expect(header2.contents()[0].getText()).to.equal('Some header');
+ });
+
+ it('leaves empty copy of ElementNode if splitting at the very end', function() {
+ var doc = getDocumentFromXML('<section><header>Some header</header></section>'),
+ section = doc.root,
+ text = section.contents()[0].contents()[0];
+
+ text.split({offset: 11});
+
+ var header1 = section.contents()[0];
+ var header2 = section.contents()[1];
+
+ expect(header1.contents()[0].getText()).to.equal('Some header');
+ expect(header2.contents().length).to.equal(0);
+ });
+
+ it('keeps TextNodes\'s parent\'s children elements intact', function() {
+ var doc = getDocumentFromXML('<section><header>A <span>fancy</span> and <span>nice</span> header</header></section>'),
+ section = doc.root,
+ header = section.contents()[0],
+ textAnd = header.contents()[2];
+
+ textAnd.split({offset: 2});
+
+ var sectionContents = section.contents();
+ expect(sectionContents.length).to.equal(2, 'Section has two children');
+ expect(sectionContents[0].getTagName()).to.equal('header', 'First section node is a header');
+ expect(sectionContents[1].getTagName()).to.equal('header', 'Second section node is a header');
+
+ var firstHeaderContents = sectionContents[0].contents();
+ expect(firstHeaderContents.length).to.equal(3, 'First header has three children');
+ expect(firstHeaderContents[0].getText()).to.equal('A ', 'First header starts with a text');
+ expect(firstHeaderContents[1].getTagName()).to.equal('span', 'First header has span in the middle');
+ expect(firstHeaderContents[2].getText()).to.equal(' a', 'First header ends with text');
+
+ var secondHeaderContents = sectionContents[1].contents();
+ expect(secondHeaderContents.length).to.equal(3, 'Second header has three children');
+ expect(secondHeaderContents[0].getText()).to.equal('nd ', 'Second header starts with text');
+ expect(secondHeaderContents[1].getTagName()).to.equal('span', 'Second header has span in the middle');
+ expect(secondHeaderContents[2].getText()).to.equal(' header', 'Second header ends with text');
+ });
+ });
+
+ describe('Events', function() {
+ it('emits nodeDetached event on node detach', function() {
+ var node = elementNodeFromXML('<div><div></div></div>'),
+ innerNode = node.contents()[0],
+ spy = sinon.spy();
+ node.document.on('change', spy);
+
+ var detached = innerNode.detach(),
+ event = spy.args[0][0];
+
+ expect(event.type).to.equal('nodeDetached');
+ expect(event.meta.node.sameNode(detached, 'detached node in event meta'));
+ expect(event.meta.parent.sameNode(node), 'original parent node in event meta');
+ }),
+
+ it('emits nodeAdded event when appending new node', function() {
+ var node = elementNodeFromXML('<div></div>'),
+ spy = sinon.spy();
+ node.document.on('change', spy);
+
+ var appended = node.append({tagName:'div'}),
+ event = spy.args[0][0];
+ expect(event.type).to.equal('nodeAdded');
+ expect(event.meta.node.sameNode(appended)).to.be.true;
+ });
+
+ it('emits nodeMoved when appending aready existing node', function() {
+ var node = elementNodeFromXML('<div><a></a><b></b></div>'),
+ a = node.contents()[0],
+ b = node.contents()[1],
+ spy = sinon.spy();
+ node.document.on('change', spy);
+
+ var appended = a.append(b),
+ event = spy.args[0][0];
+
+ expect(spy.callCount).to.equal(1);
+ expect(event.type).to.equal('nodeMoved');
+ expect(event.meta.node.sameNode(appended)).to.be.true;
+ expect(node.document.root.sameNode(event.meta.parent)).to.equal(true, 'previous parent attached to event meta');
+ });
+
+ it('emits nodeAdded event when prepending new node', function() {
+ var node = elementNodeFromXML('<div></div>'),
+ spy = sinon.spy();
+ node.document.on('change', spy);
+
+ var prepended = node.prepend({tagName:'div'}),
+ event = spy.args[0][0];
+ expect(event.type).to.equal('nodeAdded');
+ expect(event.meta.node.sameNode(prepended)).to.be.true;
+ });
+
+ it('emits nodeMoved when prepending aready existing node', function() {
+ var node = elementNodeFromXML('<div><a></a><b></b></div>'),
+ a = node.contents()[0],
+ b = node.contents()[1],
+ spy = sinon.spy();
+ node.document.on('change', spy);
+
+ var prepended = a.prepend(b),
+ event = spy.args[0][0];
+ expect(spy.callCount).to.equal(1);
+ expect(event.type).to.equal('nodeMoved');
+ expect(event.meta.node.sameNode(prepended)).to.be.true;
+ });
+
+ it('emits nodeAdded event when inserting node after another', function() {
+ var node = elementNodeFromXML('<div><a></a></div>').contents()[0],
+ spy = sinon.spy();
+ node.document.on('change', spy);
+
+ var inserted = node.after({tagName:'div'}),
+ event = spy.args[0][0];
+ expect(event.type).to.equal('nodeAdded');
+ expect(event.meta.node.sameNode(inserted)).to.be.true;
+ });
+
+ it('emits nodeMoved when inserting aready existing node after another', function() {
+ var node = elementNodeFromXML('<div><a></a><b></b></div>'),
+ a = node.contents()[0],
+ b = node.contents()[1],
+ spy = sinon.spy();
+ node.document.on('change', spy);
+ var inserted = b.after(a),
+ event = spy.args[0][0];
+
+ expect(spy.callCount).to.equal(1);
+ expect(event.type).to.equal('nodeMoved');
+ expect(event.meta.node.sameNode(inserted)).to.be.true;
+ });
+
+ it('emits nodeAdded event when inserting node before another', function() {
+ var node = elementNodeFromXML('<div><a></a></div>').contents()[0],
+ spy = sinon.spy();
+ node.document.on('change', spy);
+
+ var inserted = node.before({tagName:'div'}),
+ event = spy.args[0][0];
+ expect(event.type).to.equal('nodeAdded');
+ expect(event.meta.node.sameNode(inserted)).to.be.true;
+ });
+
+ it('emits nodeAdded when inserting aready existing node before another', function() {
+ var node = elementNodeFromXML('<div><a></a><b></b></div>'),
+ a = node.contents()[0],
+ b = node.contents()[1],
+ spy = sinon.spy();
+ node.document.on('change', spy);
+ var inserted = a.before(b),
+ event = spy.args[0][0];
+
+ expect(spy.callCount).to.equal(1);
+ expect(event.type).to.equal('nodeMoved');
+ expect(event.meta.node.sameNode(inserted)).to.be.true;
+ });
+
+ it('emits nodeDetached and nodeAdded when replacing root node with another', function() {
+ var doc = getDocumentFromXML('<a></a>'),
+ oldRoot = doc.root,
+ spy = sinon.spy();
+
+ doc.on('change', spy);
+
+ doc.root.replaceWith({tagName: 'b'});
+
+ expect(spy.callCount).to.equal(2);
+
+ var event1 = spy.args[0][0],
+ event2 = spy.args[1][0];
+
+ expect(event1.type).to.equal('nodeDetached');
+ expect(event1.meta.node.sameNode(oldRoot)).to.equal(true, 'root node in nodeDetached event metadata');
+ expect(event2.type).to.equal('nodeAdded');
+ expect(event2.meta.node.sameNode(doc.root)).to.equal(true, 'new root node in nodelAdded event meta');
+ });
+
+
+ ['append', 'prepend', 'before', 'after'].forEach(function(insertionMethod) {
+ it('emits nodeDetached for node moved from a document tree to out of document node ' + insertionMethod, function() {
+ var doc = getDocumentFromXML('<div><a></a></div>'),
+ a = doc.root.contents()[0],
+ spy = sinon.spy();
+
+ doc.on('change', spy);
+
+ var newNode = doc.createDocumentNode({tagName: 'b'}),
+ newNodeInner = newNode.append({tagName:'c'});
+
+ newNodeInner[insertionMethod](a);
+
+ var event = spy.args[0][0];
+ expect(event.type).to.equal('nodeDetached');
+ expect(event.meta.node.sameNode(a));
+ });
+
+ it('doesn\'t emit nodeDetached event for already out of document node moved to out of document node' + insertionMethod, function() {
+ var doc = getDocumentFromXML('<div><a></a></div>'),
+ spy = sinon.spy();
+
+ doc.on('change', spy);
+
+ var newNode = doc.createDocumentNode({tagName: 'b'});
+ newNode.append({tagName:'c'});
+
+ expect(spy.callCount).to.equal(0);
+ });
+ });
+
+
+ });
+
+ describe('Traversing', function() {
+ describe('Basic', function() {
+ it('can access node parent', function() {
+ var doc = getDocumentFromXML('<a><b></b></a>'),
+ a = doc.root,
+ b = a.contents()[0];
+
+ expect(a.parent()).to.equal(null, 'parent of a root is null');
+ expect(b.parent().sameNode(a)).to.be.true;
+ });
+ it('can access node parents', function() {
+ var doc = getDocumentFromXML('<a><b><c></c></b></a>'),
+ a = doc.root,
+ b = a.contents()[0],
+ c = b.contents()[0];
+
+ var parents = c.parents();
+ // @@
+ expect(parents[0].sameNode(b)).to.be.true;
+ expect(parents[1].sameNode(a)).to.be.true;
+ });
+ });
+
+ describe('finding sibling parents of two elements', function() {
+ it('returns elements themself if they have direct common parent', function() {
+ var doc = getDocumentFromXML('<section><div><div>A</div><div>B</div></div></section>'),
+ wrappingDiv = doc.root.contents()[0],
+ divA = wrappingDiv.contents()[0],
+ divB = wrappingDiv.contents()[1];
+
+ var siblingParents = doc.getSiblingParents({node1: divA, node2: divB});
+
+ expect(siblingParents.node1.sameNode(divA)).to.equal(true, 'divA');
+ expect(siblingParents.node2.sameNode(divB)).to.equal(true, 'divB');
+ });
+
+ it('returns sibling parents - example 1', function() {
+ var doc = getDocumentFromXML('<section>Alice <span>has a cat</span></section>'),
+ aliceText = doc.root.contents()[0],
+ span = doc.root.contents()[1],
+ spanText = span.contents()[0];
+
+ var siblingParents = doc.getSiblingParents({node1: aliceText, node2: spanText});
+
+ expect(siblingParents.node1.sameNode(aliceText)).to.equal(true, 'aliceText');
+ expect(siblingParents.node2.sameNode(span)).to.equal(true, 'span');
+ });
+
+ it('returns node itself for two same nodes', function() {
+ var doc = getDocumentFromXML('<section><div></div></section>'),
+ div = doc.root.contents()[0];
+
+ var siblingParents = doc.getSiblingParents({node1: div, node2: div});
+ expect(!!siblingParents.node1 && !!siblingParents.node2).to.equal(true, 'nodes defined');
+ expect(siblingParents.node1.sameNode(div)).to.be.equal(true, 'node1');
+ expect(siblingParents.node2.sameNode(div)).to.be.equal(true, 'node2');
+ });
+ });
+ });
+
+ describe('Serializing document to WLXML', function() {
+ it('keeps document intact when no changes have been made', function() {
+ var xmlIn = '<section>Alice<div>has</div>a <span class="uri" meta-uri="http://cat.com">cat</span>!</section>',
+ doc = getDocumentFromXML(xmlIn),
+ xmlOut = doc.toXML();
+
+ var parser = new DOMParser(),
+ input = parser.parseFromString(xmlIn, 'application/xml').childNodes[0],
+ output = parser.parseFromString(xmlOut, 'application/xml').childNodes[0];
+
+ expect(input.isEqualNode(output)).to.be.true;
+ });
+
+ it('keeps entities intact', function() {
+ var xmlIn = '<section>< ></section>',
+ doc = getDocumentFromXML(xmlIn),
+ xmlOut = doc.toXML();
+ expect(xmlOut).to.equal(xmlIn);
+ });
+ it('keeps entities intact when they form html/xml', function() {
+ var xmlIn = '<section><abc></section>',
+ doc = getDocumentFromXML(xmlIn),
+ xmlOut = doc.toXML();
+ expect(xmlOut).to.equal(xmlIn);
+ });
+ });
+
+ describe('Extension API', function() {
+ var doc, extension, elementNode, textNode;
+
+ beforeEach(function() {
+ doc = getDocumentFromXML('<section>Alice<div class="test_class"></div></section>');
+ elementNode = doc.root;
+ textNode = doc.root.contents()[0];
+ extension = {};
+
+ expect(elementNode.testTransformation).to.be.undefined;
+ expect(textNode.testTransformation).to.be.undefined;
+ expect(doc.testTransformation).to.be.undefined;
+
+ expect(doc.testMethod).to.be.undefined;
+ expect(elementNode.testMethod).to.be.undefined;
+ expect(textNode.testMethod).to.be.undefined;
+ expect(elementNode.elementTestMethod).to.be.undefined;
+ expect(textNode.textTestMethod).to.be.undefined;
+ });
+
+ it('allows adding method to a document', function() {
+ extension = {document: {methods: {
+ testMethod: function() { return this; }
+ }}};
+
+ doc.registerExtension(extension);
+ expect(doc.testMethod()).to.equal(doc, 'context is set to a document instance');
+ });
+
+ it('allows adding transformation to a document', function() {
+ extension = {document: {transformations: {
+ testTransformation: function() { return this; },
+ testTransformation2: {impl: function() { return this;}}
+ }}};
+
+ doc.registerExtension(extension);
+ expect(doc.testTransformation()).to.equal(doc, 'context is set to a document instance');
+ expect(doc.testTransformation2()).to.equal(doc, 'context is set to a document instance');
+ });
+
+ it('allows adding method to a DocumentNode instance', function() {
+ extension = {
+ documentNode: {
+ methods: {
+ testMethod: function() { return this; }
+ }
+ },
+ textNode: {
+ methods: {
+ textTestMethod: function() { return this; }
+ }
+ },
+ elementNode: {
+ methods: {
+ elementTestMethod: function() { return this; }
+ }
+ }
+ };
+
+ doc.registerExtension(extension);
+
+ /* refresh */
+ elementNode = doc.root;
+ textNode = doc.root.contents()[0];
+
+ expect(elementNode.testMethod().sameNode(elementNode)).to.equal(true, 'context is set to a node instance');
+ expect(textNode.testMethod().sameNode(textNode)).to.equal(true, 'context is set to a node instance');
+
+ expect(elementNode.elementTestMethod().sameNode(elementNode)).to.be.true;
+ expect(elementNode.textTestMethod).to.be.undefined;
+
+ expect(textNode.textTestMethod().sameNode(textNode)).to.be.true;
+ expect(textNode.elementTestMethod).to.be.undefined;
+ });
+
+ it('allows adding transformation to a DocumentNode', function() {
+ extension = {
+ documentNode: {
+ transformations: {
+ testTransformation: function() { return this; },
+ testTransformation2: {impl: function() { return this;}}
+ }
+ },
+ textNode: {
+ transformations: {
+ textTestTransformation: function() { return this; }
+ }
+ },
+ elementNode: {
+ transformations: {
+ elementTestTransformation: function() { return this; }
+ }
+ }
+ };
+
+ doc.registerExtension(extension);
+
+ /* refresh */
+ elementNode = doc.root;
+ textNode = doc.root.contents()[0];
+
+ expect(elementNode.testTransformation().sameNode(elementNode)).to.equal(true, '1');
+ expect(elementNode.testTransformation2().sameNode(elementNode)).to.equal(true, '2');
+ expect(textNode.testTransformation().sameNode(textNode)).to.equal(true, '3');
+ expect(textNode.testTransformation2().sameNode(textNode)).to.equal(true, '4');
+
+ expect(elementNode.elementTestTransformation().sameNode(elementNode)).to.be.true;
+ expect(elementNode.textTestTransformation).to.be.undefined;
+
+ expect(textNode.textTestTransformation().sameNode(textNode)).to.be.true;
+ expect(textNode.elementTestTransfomation).to.be.undefined;
+ });
+
+ it('allows text/element node methods and transformations to access node and transormations on document node', function() {
+
+ var doc = getDocumentFromXML('<div>text</div>');
+
+ doc.registerExtension({
+ documentNode: {
+ methods: {
+ test: function() {
+ return 'super';
+ }
+ },
+ transformations: {
+ testT: function() {
+ return 'super_trans';
+ }
+ }
+ },
+ elementNode: {
+ methods: {
+ test: function() {
+ return 'element_sub_' + this.__super__.test();
+ }
+ },
+ transformations: {
+ testT: function() {
+ return 'element_trans_sub_' + this.__super__.testT();
+ }
+ }
+ },
+ textNode: {
+ methods: {
+ test: function() {
+ return 'text_sub_' + this.__super__.test();
+ }
+ },
+ transformations: {
+ testT: function() {
+ return 'text_trans_sub_' + this.__super__.testT();
+ }
+ }
+ }
+ });
+
+ var textNode = doc.root.contents()[0];
+
+ expect(doc.root.test()).to.equal('element_sub_super');
+ expect(textNode.test()).to.equal('text_sub_super');
+ expect(doc.root.testT()).to.equal('element_trans_sub_super_trans');
+ expect(textNode.testT()).to.equal('text_trans_sub_super_trans');
+ });
+ });
+
+ describe('Undo/redo', function() {
+
+ it('smoke tests', function() {
+ var doc = getDocumentFromXML('<div>Alice</div>'),
+ textNode = doc.root.contents()[0];
+
+ expect(doc.undoStack).to.have.length(0);
+
+ textNode.wrapWith({tagName: 'span', start:1, end:2});
+ expect(doc.undoStack).to.have.length(1, '1');
+ expect(doc.toXML()).to.equal('<div>A<span>l</span>ice</div>');
+
+ doc.undo();
+ expect(doc.undoStack).to.have.length(0, '2');
+ expect(doc.toXML()).to.equal('<div>Alice</div>');
+
+ doc.redo();
+ expect(doc.undoStack).to.have.length(1, '3');
+ expect(doc.toXML()).to.equal('<div>A<span>l</span>ice</div>');
+
+ doc.undo();
+ expect(doc.undoStack).to.have.length(0, '4');
+ expect(doc.toXML()).to.equal('<div>Alice</div>');
+
+ doc.undo();
+ expect(doc.undoStack).to.have.length(0, '5');
+ expect(doc.toXML()).to.equal('<div>Alice</div>');
+ });
+
+ it('smoke tests 2', function() {
+ var doc = getDocumentFromXML('<div>Alice</div>'),
+ textNode = doc.root.contents()[0],
+ path = textNode.getPath();
+
+ textNode.setText('Alice ');
+ textNode.setText('Alice h');
+ textNode.setText('Alice ha');
+ textNode.setText('Alice has');
+
+ expect(textNode.getText()).to.equal('Alice has');
+
+ doc.undo();
+ expect(doc.root.contents()[0].getText()).to.equal('Alice ha', '1');
+
+ doc.undo();
+ expect(doc.root.contents()[0].getText()).to.equal('Alice h', '2');
+
+ doc.redo();
+ expect(doc.root.contents()[0].getText()).to.equal('Alice ha', '3');
+
+ doc.redo();
+ expect(doc.root.contents()[0].getText()).to.equal('Alice has', '4');
+
+ doc.undo();
+ doc.undo();
+ textNode = doc.getNodeByPath(path);
+ textNode.setText('Cat');
+ doc.undo();
+ textNode = doc.getNodeByPath(path);
+ expect(textNode.getText()).to.equal('Alice h');
+ });
+
+
+ var sampleMethod = function(val) {
+ this._$.attr('x', val);
+ this.triggerChangeEvent();
+ };
+
+ var transformations = {
+ 'unaware': sampleMethod,
+ 'returning change root': {
+ impl: sampleMethod,
+ getChangeRoot: function() {
+ return this.context;
+ }
+ },
+ 'implementing undo operation': {
+ impl: function(t, val) {
+ t.oldVal = this.getAttr('x');
+ sampleMethod.call(this, val);
+ },
+ undo: function(t) {
+ this.setAttr('x', t.oldVal);
+ }
+ }
+ };
+
+ _.pairs(transformations).forEach(function(pair) {
+ var name = pair[0],
+ transformaton = pair[1];
+
+ describe(name + ' transformation: ', function() {
+ var doc, node, nodePath;
+
+ beforeEach(function() {
+ doc = getDocumentFromXML('<div><test x="old"></test></div>');
+
+ doc.registerExtension({elementNode: {transformations: {
+ test: transformaton
+ }}});
+
+ node = doc.root.contents()[0];
+ nodePath = node.getPath();
+ });
+
+ it('transforms as expected', function() {
+ node.test('new');
+ expect(node.getAttr('x')).to.equal('new');
+ });
+
+ it('can be undone', function() {
+ node.test('new');
+ doc.undo();
+ node = doc.getNodeByPath(nodePath);
+ expect(node.getAttr('x')).to.equal('old');
+ });
+
+ it('can be undone and then redone', function() {
+ node.test('new');
+ doc.undo();
+ doc.redo();
+ node = doc.getNodeByPath(nodePath);
+ expect(node.getAttr('x')).to.equal('new');
+ });
+
+ it('handles a sample scenario', function() {
+ doc.root.contents()[0].test('1');
+ doc.root.contents()[0].test('2');
+ doc.root.contents()[0].test('3');
+ doc.root.contents()[0].test('4');
+ doc.root.contents()[0].test('5');
+
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('5', 'after initial transformations');
+ doc.undo();
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('4', 'undo 1.1');
+ doc.undo();
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('3', 'undo 1.2');
+ doc.redo();
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('4', 'redo 1.1');
+ doc.redo();
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('5', 'redo 1.2');
+ doc.undo();
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('4', 'undo 2.1');
+ doc.root.contents()[0].test('10');
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('10', 'additional transformation');
+ expect(doc.redoStack.length).to.equal(0, 'transformation cleared redo stack');
+ doc.redo();
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('10', 'empty redoStack so redo was noop');
+ doc.undo();
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('4', 'undoing additional transformation');
+ doc.redo();
+ expect(doc.root.contents()[0].getAttr('x')).to.equal('10', 'redoing additional transformation');
+ });
+ });
+ });
+
+ it('smoke tests nested transformations', function() {
+ var doc = getDocumentFromXML('<div></div>');
+
+ doc.registerExtension({elementNode: {transformations: {
+ nested: function(v) {
+ this._$.attr('innerAttr', v);
+ this.triggerChangeEvent();
+ },
+ outer: function(v) {
+ this.nested(v);
+ this._$.attr('outerAttr', v);
+ this.triggerChangeEvent();
+ }
+ }}});
+
+ doc.root.outer('test1');
+ doc.root.outer('test2');
+
+ expect(doc.root.getAttr('innerAttr')).to.equal('test2');
+ expect(doc.root.getAttr('outerAttr')).to.equal('test2');
+
+ doc.undo();
+
+ expect(doc.root.getAttr('innerAttr')).to.equal('test1');
+ expect(doc.root.getAttr('outerAttr')).to.equal('test1');
+
+ doc.undo();
+
+ expect(doc.root.getAttr('innerAttr')).to.equal(undefined);
+ expect(doc.root.getAttr('outerAttr')).to.equal(undefined);
+
+ doc.redo();
+
+ expect(doc.root.getAttr('innerAttr')).to.equal('test1');
+ expect(doc.root.getAttr('outerAttr')).to.equal('test1');
+
+ doc.redo();
+
+ expect(doc.root.getAttr('innerAttr')).to.equal('test2');
+ expect(doc.root.getAttr('outerAttr')).to.equal('test2');
+
+ });
+
+ it('ignores transformation if document didn\'t emit change event', function() {
+ var doc = getDocumentFromXML('<div></div>');
+
+ doc.registerExtension({elementNode: {transformations: {
+ test: function() {
+ // empty
+ }
+ }}});
+
+ doc.root.test();
+ expect(doc.undoStack.length).to.equal(0);
+
+ });
+
+ describe('Transactions', function() {
+ it('allows to undo/redo series of transformations at once', function() {
+ var doc = getDocumentFromXML('<div></div>');
+
+ doc.registerExtension({
+ elementNode: {transformations: {
+ test: function(v) {
+ this.setAttr('test', v);
+ }
+ }}
+ });
+
+ doc.startTransaction();
+ doc.root.test('1');
+ doc.root.test('2');
+ doc.root.test('3');
+ doc.endTransaction();
+
+ doc.undo();
+ expect(doc.root.getAttr('test'), '1');
+ doc.redo();
+ expect(doc.root.getAttr('test'), '3');
+ doc.undo();
+ expect(doc.root.getAttr('test'), '1');
+ doc.redo();
+ expect(doc.root.getAttr('test'), '3');
+ });
+
+ it('ignores empty transactions', function() {
+ var doc = getDocumentFromXML('<div></div>');
+ doc.startTransaction();
+ doc.endTransaction();
+ expect(doc.undoStack).to.have.length(0, 'empty transaction doesn\'t get pushed into undo stack');
+ });
+
+ it('doesn\'t break on optimizations', function() {
+ // This is a smoke test checking if optimizations made to transaction undoing
+ // doesnt't break anything.
+ var doc = getDocumentFromXML('<div smart="1" unaware="1"></div>');
+
+ doc.registerExtension({
+ elementNode: {transformations: {
+ unaware: function(v) {
+ this.setAttr('unware', v);
+ this.triggerChangeEvent();
+ },
+ smart: {
+ impl: function(t, v) {
+ t.oldVal = this.getAttr('smart');
+ this.setAttr('smart', v);
+ this.triggerChangeEvent();
+ },
+ undo: function(t) {
+ this.setAttr('smart', t.oldVal);
+ this.triggerChangeEvent();
+ }
+ }
+ }}
+ });
+
+ doc.startTransaction();
+ doc.root.smart('2');
+ doc.root.unaware('2');
+ doc.root.smart('3');
+ doc.root.unaware('3');
+ doc.endTransaction();
+
+ doc.undo();
+
+ expect(doc.root.getAttr('smart')).to.equal('1');
+ expect(doc.root.getAttr('unaware')).to.equal('1');
+ });
+
+ it('can have associated metadata', function() {
+ var doc = getDocumentFromXML('<div></div>'),
+ metadata = Object.create({});
+
+ doc.registerExtension({document: {transformations: {
+ test: function() {
+ this.trigger('change');
+ }
+ }}});
+
+ doc.startTransaction(metadata);
+ doc.test();
+ doc.endTransaction();
+
+ var transaction = doc.undoStack[0];
+ expect(transaction.metadata).to.equal(metadata);
+ });
+
+ it('can be rolled back', function() {
+ var doc = getDocumentFromXML('<root></root>');
+
+ doc.startTransaction();
+ doc.root.append({tagName: 'div'});
+ doc.rollbackTransaction();
+
+ expect(doc.undoStack.length).to.equal(0, 'nothing to undo');
+ expect(doc.root.contents().length).to.equal(0);
+ });
+
+ it('rollbacks and calls error handleor if error gets thrown', function() {
+ var doc = getDocumentFromXML('<root></root>'),
+ err = new Error(),
+ spy = sinon.spy();
+
+ doc.transaction(function() {
+ doc.root.append({tagName: 'div'});
+ throw err;
+ }, {error: spy});
+
+ expect(spy.args[0][0]).to.equal(err);
+ expect(doc.root.contents().length).to.equal(0);
+ expect(doc.undoStack.length).to.equal(0);
+ });
+ });
+
+ describe('Regression tests', function() {
+ it('redos correctly after running its own undo followed by unaware transformation undo', function() {
+ var doc = getDocumentFromXML('<section t="0"></section>');
+
+ doc.registerExtension({elementNode: {transformations: {
+ unaware: function() {
+ this.triggerChangeEvent();
+ },
+ test: {
+ impl: function() {
+ this._$.attr('t', 1);
+ this.triggerChangeEvent();
+ },
+ undo: function() {
+ this._$.attr('t', 0);
+ }
+ }
+ }}});
+ doc.root.unaware();
+ doc.root.test();
+ doc.undo();
+ doc.undo();
+ doc.redo();
+ doc.redo();
+ expect(doc.root.getAttr('t')).to.equal('1');
+ });
+ it('can perform undo of an operation performed after automatic transaction rollback', function() {
+ var doc = getDocumentFromXML('<section></section>'),
+ extension = {document: {transformations: {
+ throwingTransformation: function() { throw new Error(); }
+ }}};
+
+ doc.registerExtension(extension);
+
+ doc.throwingTransformation();
+
+ doc.transaction(function() {
+ doc.root.setAttr('x', '2');
+ });
+
+ expect(doc.undoStack.length).to.equal(1);
+ expect(doc.root.getAttr('x')).to.equal('2');
+
+ doc.undo();
+
+ expect(doc.undoStack.length).to.equal(0);
+ expect(doc.root.getAttr('x')).to.be.undefined;
+
+ });
+ });
fnp / fnpeditor.git / blobdiff