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|
<!DOCTYPE html>
<html>
<!--
Copyright 2008 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<!--
@author jparent@google.com (Julie Parent)
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.editor.Node</title>
<script src="../base.js"></script>
<script>
goog.require('goog.array');
goog.require('goog.dom');
goog.require('goog.dom.TagName');
goog.require('goog.editor.node');
goog.require('goog.testing.ExpectedFailures');
goog.require('goog.testing.dom');
goog.require('goog.testing.jsunit');
goog.require('goog.userAgent');
</script>
</head>
<body>
<div id='parentNode'><div></div><div></div><div></div></div>
<a id='link' href='foo.html'>Foo</a>
<div id='editableTest' g_editable='true'>node<span>element</span></div>
<script>
var expectedFailures = new goog.testing.ExpectedFailures();
var parentNode = document.getElementById('parentNode');
var childNode1 = parentNode.childNodes[0];
var childNode2 = parentNode.childNodes[1];
var childNode3 = parentNode.childNodes[2];
var gChildWsNode1 = null;
var gChildTextNode1 = null;
var gChildNbspNode1 = null;
var gChildMixedNode1 = null;
var gChildWsNode2a = null;
var gChildWsNode2b = null;
var gChildTextNode3a = null;
var gChildWsNode3 = null;
var gChildTextNode3b = null;
function setUpDomTree() {
gChildWsNode1 = document.createTextNode(' \t\r\n');
gChildTextNode1 = document.createTextNode('Child node');
gChildNbspNode1 = document.createTextNode('\u00a0');
gChildMixedNode1 = document.createTextNode('Text\n plus\u00a0');
gChildWsNode2a = document.createTextNode('');
gChildWsNode2b = document.createTextNode(' ');
gChildTextNode3a = document.createTextNode('I am a grand child');
gChildWsNode3 = document.createTextNode(' \t \r \n');
gChildTextNode3b = document.createTextNode('I am also a grand child');
childNode3.appendChild(gChildTextNode3a);
childNode3.appendChild(gChildWsNode3);
childNode3.appendChild(gChildTextNode3b);
childNode1.appendChild(gChildMixedNode1);
childNode1.appendChild(gChildWsNode1);
childNode1.appendChild(gChildNbspNode1);
childNode1.appendChild(gChildTextNode1);
childNode2.appendChild(gChildWsNode2a);
childNode2.appendChild(gChildWsNode2b);
document.body.appendChild(parentNode);
}
function tearDownDomTree() {
childNode1.innerHTML = childNode2.innerHTML = childNode3.innerHTML = "";
gChildWsNode1 = null;
gChildTextNode1 = null;
gChildNbspNode1 = null;
gChildMixedNode1 = null;
gChildWsNode2a = null;
gChildWsNode2b = null;
gChildTextNode3a = null;
gChildWsNode3 = null;
gChildTextNode3b = null;
}
function testGetCompatModeQuirks() {
var quirksIfr = document.createElement('iframe');
document.body.appendChild(quirksIfr);
// Webkit used to default to standards mode, but fixed this in
// Safari 4/Chrome 2, aka, WebKit 530.
expectedFailures.expectFailureFor(goog.userAgent.WEBKIT &&
!goog.userAgent.isVersion('530'));
expectedFailures.run(function() {
assertFalse('Empty sourceless iframe is quirks mode, not standards mode',
goog.editor.node.isStandardsMode(
goog.dom.getFrameContentDocument(quirksIfr)));
});
document.body.removeChild(quirksIfr);
}
function testGetCompatModeStandards() {
var standardsIfr = document.createElement('iframe');
document.body.appendChild(standardsIfr);
var doc = goog.dom.getFrameContentDocument(standardsIfr);
doc.open();
doc.write('<!DOCTYPE HTML><html><head></head><body> </body></html>');
doc.close();
assertTrue('Iframe with DOCTYPE written in is standards mode',
goog.editor.node.isStandardsMode(doc));
document.body.removeChild(standardsIfr);
}
/**
* Creates a DOM tree and tests that getLeftMostLeaf returns proper node
*/
function testGetLeftMostLeaf() {
setUpDomTree();
assertEquals('Should skip ws node', gChildMixedNode1,
goog.editor.node.getLeftMostLeaf(parentNode));
assertEquals('Should skip ws node', gChildMixedNode1,
goog.editor.node.getLeftMostLeaf(childNode1));
assertEquals('Has no non ws leaves', childNode2,
goog.editor.node.getLeftMostLeaf(childNode2));
assertEquals('Should return first child', gChildTextNode3a,
goog.editor.node.getLeftMostLeaf(childNode3));
assertEquals('Has no children', gChildTextNode1,
goog.editor.node.getLeftMostLeaf(gChildTextNode1));
tearDownDomTree();
}
/**
* Creates a DOM tree and tests that getRightMostLeaf returns proper node
*/
function testGetRightMostLeaf() {
setUpDomTree();
assertEquals("Should return child3's rightmost child", gChildTextNode3b,
goog.editor.node.getRightMostLeaf(parentNode));
assertEquals('Should skip ws node', gChildTextNode1,
goog.editor.node.getRightMostLeaf(childNode1));
assertEquals('Has no non ws leaves', childNode2,
goog.editor.node.getRightMostLeaf(childNode2));
assertEquals('Should return last child', gChildTextNode3b,
goog.editor.node.getRightMostLeaf(childNode3));
assertEquals('Has no children', gChildTextNode1,
goog.editor.node.getRightMostLeaf(gChildTextNode1));
tearDownDomTree();
}
/**
* Creates a DOM tree and tests that getFirstChild properly ignores
* ignorable nodes
*/
function testGetFirstChild() {
setUpDomTree();
assertNull('Has no none ws children',
goog.editor.node.getFirstChild(childNode2));
assertEquals('Should skip first child, as it is ws', gChildMixedNode1,
goog.editor.node.getFirstChild(childNode1));
assertEquals('Should just return first child', gChildTextNode3a,
goog.editor.node.getFirstChild(childNode3));
assertEquals('Should return first child', childNode1,
goog.editor.node.getFirstChild(parentNode));
assertNull('First child of a text node should return null',
goog.editor.node.getFirstChild(gChildTextNode1));
assertNull('First child of null should return null',
goog.editor.node.getFirstChild(null));
tearDownDomTree();
}
/**
* Create a DOM tree and test that getLastChild properly ignores
* ignorable nodes
*/
function testGetLastChild() {
setUpDomTree();
assertNull('Has no none ws children',
goog.editor.node.getLastChild(childNode2));
assertEquals('Should skip last child, as it is ws', gChildTextNode1,
goog.editor.node.getLastChild(childNode1));
assertEquals('Should just return last child', gChildTextNode3b,
goog.editor.node.getLastChild(childNode3));
assertEquals('Should return last child', childNode3,
goog.editor.node.getLastChild(parentNode));
assertNull('Last child of a text node should return null',
goog.editor.node.getLastChild(gChildTextNode1));
assertNull('Last child of null should return null',
goog.editor.node.getLastChild(gChildTextNode1));
tearDownDomTree();
}
/**
* Test if nodes that should be ignorable return false and nodes that should
* not be ignored return true.
*/
function testIsImportant() {
var wsNode = document.createTextNode(' \t\r\n');
assertFalse('White space node is ignorable',
goog.editor.node.isImportant(wsNode));
var textNode = document.createTextNode('Hello');
assertTrue('Text node is important', goog.editor.node.isImportant(textNode));
var nbspNode = document.createTextNode('\u00a0');
assertTrue('Node with nbsp is important',
goog.editor.node.isImportant(nbspNode));
var imageNode = document.createElement('img');
assertTrue('Image node is important',
goog.editor.node.isImportant(imageNode));
}
/**
* Test that isAllNonNbspWhiteSpace returns true if node contains only
* whitespace that is not nbsp and false otherwise
*/
function testIsAllNonNbspWhiteSpace() {
var wsNode = document.createTextNode(' \t\r\n');
assertTrue('String is all non nbsp',
goog.editor.node.isAllNonNbspWhiteSpace(wsNode));
var textNode = document.createTextNode('Hello');
assertFalse('String should not be whitespace',
goog.editor.node.isAllNonNbspWhiteSpace(textNode));
var nbspNode = document.createTextNode('\u00a0');
assertFalse('String has nbsp',
goog.editor.node.isAllNonNbspWhiteSpace(nbspNode));
}
/**
* Creates a DOM tree and Test that getPreviousSibling properly ignores
* ignorable nodes
*/
function testGetPreviousSibling() {
setUpDomTree();
assertNull('No previous sibling',
goog.editor.node.getPreviousSibling(gChildTextNode3a));
assertEquals('Should have text sibling', gChildTextNode3a,
goog.editor.node.getPreviousSibling(gChildWsNode3));
assertEquals('Should skip over white space sibling', gChildTextNode3a,
goog.editor.node.getPreviousSibling(gChildTextNode3b));
assertNull('No previous sibling',
goog.editor.node.getPreviousSibling(gChildMixedNode1));
assertEquals('Should have mixed text sibling', gChildMixedNode1,
goog.editor.node.getPreviousSibling(gChildWsNode1));
assertEquals('Should skip over white space sibling', gChildMixedNode1,
goog.editor.node.getPreviousSibling(gChildNbspNode1));
assertNotEquals('Should not move past ws and nbsp', gChildMixedNode1,
goog.editor.node.getPreviousSibling(gChildTextNode1));
assertEquals('Should go to child 2', childNode2,
goog.editor.node.getPreviousSibling(childNode3));
assertEquals('Should go to child 1', childNode1,
goog.editor.node.getPreviousSibling(childNode2));
assertNull('Only has white space siblings',
goog.editor.node.getPreviousSibling(gChildWsNode2b));
tearDownDomTree();
}
/**
* Creates a DOM tree and tests that getNextSibling properly ignores igrnorable
* nodes when determining the next sibling
*/
function testGetNextSibling() {
setUpDomTree();
assertEquals('Child 1 should have Child 2', childNode2,
goog.editor.node.getNextSibling(childNode1));
assertEquals('Child 2 should have child 3', childNode3,
goog.editor.node.getNextSibling(childNode2));
assertNull('Child 3 has no next sibling',
goog.editor.node.getNextSibling(childNode3));
assertNotEquals('Should not skip ws and nbsp nodes', gChildTextNode1,
goog.editor.node.getNextSibling(gChildMixedNode1));
assertNotEquals('Should not skip nbsp node', gChildTextNode1,
goog.editor.node.getNextSibling(gChildWsNode1));
assertEquals('Should have sibling', gChildTextNode1,
goog.editor.node.getNextSibling(gChildNbspNode1));
assertNull('Should have no next sibling',
goog.editor.node.getNextSibling(gChildTextNode1));
assertNull('Only has ws sibling',
goog.editor.node.getNextSibling(gChildWsNode2a));
assertNull('Has no next sibling',
goog.editor.node.getNextSibling(gChildWsNode2b));
assertEquals('Should skip ws node', gChildTextNode3b,
goog.editor.node.getNextSibling(gChildTextNode3a));
tearDownDomTree();
}
function testIsEmpty() {
var textNode = document.createTextNode('');
assertTrue('Text node with no content should be empty',
goog.editor.node.isEmpty(textNode));
textNode.data = '\xa0';
assertTrue('Text node with nbsp should be empty',
goog.editor.node.isEmpty(textNode));
assertFalse('Text node with nbsp should not be empty when prohibited',
goog.editor.node.isEmpty(textNode, true));
textNode.data = ' ';
assertTrue('Text node with whitespace should be empty',
goog.editor.node.isEmpty(textNode));
textNode.data = 'notEmpty';
assertFalse('Text node with text should not be empty',
goog.editor.node.isEmpty(textNode));
var div = document.createElement('div');
assertTrue('Empty div should be empty',
goog.editor.node.isEmpty(div));
div.innerHTML = '<iframe></iframe>'
assertFalse('Div containing an iframe is not empty',
goog.editor.node.isEmpty(div));
div.innerHTML = '<img></img>'
assertFalse('Div containing an image is not empty',
goog.editor.node.isEmpty(div));
div.innerHTML = '<embed></embed>'
assertFalse('Div containing an embed is not empty',
goog.editor.node.isEmpty(div));
div.innerHTML = '<div><span></span></div>';
assertTrue('Div containing other empty tags is empty',
goog.editor.node.isEmpty(div));
div.innerHTML = '<div><span> </span></div>';
assertTrue('Div containing other empty tags and whitespace is empty',
goog.editor.node.isEmpty(div));
div.innerHTML = '<div><span>Not empty</span></div>';
assertFalse('Div containing tags and text is not empty',
goog.editor.node.isEmpty(div));
var img = document.createElement(goog.dom.TagName.IMG);
assertFalse('Empty img should not be empty',
goog.editor.node.isEmpty(img));
var iframe = document.createElement(goog.dom.TagName.IFRAME);
assertFalse('Empty iframe should not be empty',
goog.editor.node.isEmpty(iframe));
var embed = document.createElement('embed');
assertFalse('Empty embed should not be empty',
goog.editor.node.isEmpty(embed));
}
/**
* Test that getLength returns 0 if the node has no length and no children,
* the # of children if the node has no length but does have children,
* and the length of the node if the node does have length
*/
function testGetLength() {
var parentNode = document.createElement('p');
assertEquals('Length 0 and no children', 0,
goog.editor.node.getLength(parentNode));
var childNode1 = document.createTextNode('node 1');
var childNode2 = document.createTextNode('node number 2');
var childNode3 = document.createTextNode('');
parentNode.appendChild(childNode1);
parentNode.appendChild(childNode2);
parentNode.appendChild(childNode3);
assertEquals('Length 0 and 3 children', 3,
goog.editor.node.getLength(parentNode));
assertEquals('Text node, length 6', 6,
goog.editor.node.getLength(childNode1));
assertEquals('Text node, length 0', 0,
goog.editor.node.getLength(childNode3));
}
function testFindInChildrenSuccess() {
var parentNode = document.createElement('div');
parentNode.innerHTML = '<div>foo</div><b>foo2</b>';
var index = goog.editor.node.findInChildren(parentNode,
function(node) {
return node.tagName == 'B';
});
assertEquals('Should find second child', index, 1);
}
function testFindInChildrenFailure() {
var parentNode = document.createElement('div');
parentNode.innerHTML = '<div>foo</div><b>foo2</b>';
var index = goog.editor.node.findInChildren(parentNode,
function(node) {
return false;
});
assertNull("Shouldn't find a child", index);
}
function testFindHighestMatchingAncestor() {
setUpDomTree();
var predicateFunc = function(node) {
return node.tagName == 'DIV';
};
var node = goog.editor.node.findHighestMatchingAncestor(
gChildTextNode3a, predicateFunc);
assertNotNull('Should return an ancestor', node);
assertEquals('Should have found "parentNode" as the last ' +
'ancestor matching the predicate',
parentNode,
node);
predicateFunc = function(node) {
return node.childNodes.length == 1;
};
node = goog.editor.node.findHighestMatchingAncestor(gChildTextNode3a,
predicateFunc);
assertNull("Shouldn't return an ancestor", node);
tearDownDomTree();
}
function testIsBlock() {
var blockDisplays = ['block', 'list-item', 'table', 'table-caption',
'table-cell', 'table-column', 'table-column-group', 'table-footer',
'table-footer-group', 'table-header-group', 'table-row',
'table-row-group'];
var structuralTags = [
goog.dom.TagName.BODY,
goog.dom.TagName.FRAME,
goog.dom.TagName.FRAMESET,
goog.dom.TagName.HEAD,
goog.dom.TagName.HTML
];
// The following tags are considered inline in IE, except LEGEND which is
// only a block element in WEBKIT.
var ambiguousTags = [
goog.dom.TagName.DETAILS,
goog.dom.TagName.HR,
goog.dom.TagName.ISINDEX,
goog.dom.TagName.LEGEND,
goog.dom.TagName.MAP,
goog.dom.TagName.NOFRAMES,
goog.dom.TagName.OPTGROUP,
goog.dom.TagName.OPTION,
goog.dom.TagName.SUMMARY
];
// Older versions of IE and Gecko consider the following elements to be
// inline, but IE9+ and Gecko 2.0+ recognize the new elements.
var legacyAmbiguousTags = [
goog.dom.TagName.ARTICLE,
goog.dom.TagName.ASIDE,
goog.dom.TagName.FIGCAPTION,
goog.dom.TagName.FIGURE,
goog.dom.TagName.FOOTER,
goog.dom.TagName.HEADER,
goog.dom.TagName.HGROUP,
goog.dom.TagName.NAV,
goog.dom.TagName.SECTION
];
var tagsToIgnore = goog.array.flatten(structuralTags, ambiguousTags);
if ((goog.userAgent.IE && !goog.userAgent.isDocumentMode(9)) ||
(goog.userAgent.GECKO && !goog.userAgent.isVersion('2'))) {
goog.array.extend(tagsToIgnore, legacyAmbiguousTags);
}
// Appending an applet tag can cause the test to hang if Java is blocked on
// the system.
tagsToIgnore.push(goog.dom.TagName.APPLET);
// Appending an embed tag to the page in IE brings up a warning dialog about
// loading Java content.
if (goog.userAgent.IE) {
tagsToIgnore.push(goog.dom.TagName.EMBED);
}
for (var tag in goog.dom.TagName) {
if (goog.array.contains(tagsToIgnore, tag)) {
continue;
}
var el = goog.dom.createElement(tag);
document.body.appendChild(el);
var display = goog.style.getCascadedStyle(el, 'display') ||
goog.style.getComputedStyle(el, 'display');
goog.dom.removeNode(el);
if (goog.editor.node.isBlockTag(el)) {
assertContains('Display for ' + tag + ' should be block-like',
display, blockDisplays);
} else {
assertNotContains('Display for ' + tag + ' should not be block-like',
display, blockDisplays);
}
}
}
function createDivWithTextNodes(var_args) {
var dom = goog.dom.createDom('div');
for (var i = 0; i < arguments.length; i++) {
goog.dom.appendChild(dom, goog.dom.createTextNode(arguments[i]));
}
return dom;
}
function testSkipEmptyTextNodes() {
assertNull('skipEmptyTextNodes should gracefully handle null',
goog.editor.node.skipEmptyTextNodes(null));
var dom1 = createDivWithTextNodes('abc', '', 'xyz', '', '');
assertEquals('expected not to skip first child', dom1.firstChild,
goog.editor.node.skipEmptyTextNodes(dom1.firstChild));
assertEquals('expected to skip second child', dom1.childNodes[2],
goog.editor.node.skipEmptyTextNodes(dom1.childNodes[1]));
assertNull('expected to skip all the rest of the children',
goog.editor.node.skipEmptyTextNodes(dom1.childNodes[3]));
}
function testIsEditableContainer() {
var editableContainerElement = document.getElementById('editableTest');
assertTrue('Container element should be considered editable container',
goog.editor.node.isEditableContainer(editableContainerElement));
var nonEditableContainerElement = document.getElementById('parentNode');
assertFalse('Other element should not be considered editable container',
goog.editor.node.isEditableContainer(nonEditableContainerElement));
}
function testIsEditable() {
var editableContainerElement = document.getElementById('editableTest');
var childNode = editableContainerElement.firstChild;
var childElement = editableContainerElement.getElementsByTagName('span')[0];
assertFalse('Container element should not be considered editable',
goog.editor.node.isEditable(editableContainerElement));
assertTrue('Child text node should be considered editable',
goog.editor.node.isEditable(childNode));
assertTrue('Child element should be considered editable',
goog.editor.node.isEditable(childElement));
assertTrue('Grandchild node should be considered editable',
goog.editor.node.isEditable(childElement.firstChild));
assertFalse('Other element should not be considered editable',
goog.editor.node.isEditable(document.getElementById('parentNode')));
}
function testFindTopMostEditableAncestor() {
var root = document.getElementById('editableTest');
var span = root.getElementsByTagName(goog.dom.TagName.SPAN)[0];
var textNode = span.firstChild;
assertEquals('Should return self if self is matched.',
textNode, goog.editor.node.findTopMostEditableAncestor(textNode,
function(node) {
return node.nodeType == goog.dom.NodeType.TEXT;
}));
assertEquals('Should not walk out of editable node.',
null, goog.editor.node.findTopMostEditableAncestor(textNode,
function(node) {
return node.tagName == goog.dom.TagName.BODY;
}));
assertEquals('Should not match editable container.',
null, goog.editor.node.findTopMostEditableAncestor(textNode,
function(node) {
return node.tagName == goog.dom.TagName.DIV;
}));
assertEquals('Should find node in editable container.',
span, goog.editor.node.findTopMostEditableAncestor(textNode,
function(node) {
return node.tagName == goog.dom.TagName.SPAN;
}));
}
function testSplitDomTreeAt() {
var innerHTML = '<p>1<b>2</b>3</p>';
var root = goog.dom.createElement(goog.dom.TagName.DIV);
root.innerHTML = innerHTML;
var result = goog.editor.node.splitDomTreeAt(
root.getElementsByTagName(goog.dom.TagName.B)[0], null, root);
goog.testing.dom.assertHtmlContentsMatch('<p>1<b>2</b></p>', root);
goog.testing.dom.assertHtmlContentsMatch('<p>3</p>', result);
root.innerHTML = innerHTML;
result = goog.editor.node.splitDomTreeAt(
root.getElementsByTagName(goog.dom.TagName.B)[0],
goog.dom.createTextNode('and'),
root);
goog.testing.dom.assertHtmlContentsMatch('<p>1<b>2</b></p>', root);
goog.testing.dom.assertHtmlContentsMatch('<p>and3</p>', result);
}
function testTransferChildren() {
var prefix = '<b>Bold 1</b>';
var innerHTML = '<b>Bold</b><ul><li>Item 1</li><li>Item 2</li></ul>';
var root1 = goog.dom.createElement(goog.dom.TagName.DIV);
root1.innerHTML = innerHTML;
var root2 = goog.dom.createElement(goog.dom.TagName.P);
root2.innerHTML = prefix;
var b = root1.getElementsByTagName(goog.dom.TagName.B)[0];
// Transfer the children.
goog.editor.node.transferChildren(root2, root1);
assertEquals(0, root1.childNodes.length);
goog.testing.dom.assertHtmlContentsMatch(prefix + innerHTML, root2);
assertEquals(b, root2.getElementsByTagName(goog.dom.TagName.B)[1]);
// Transfer them back.
goog.editor.node.transferChildren(root1, root2);
assertEquals(0, root2.childNodes.length);
goog.testing.dom.assertHtmlContentsMatch(prefix + innerHTML, root1);
assertEquals(b, root1.getElementsByTagName(goog.dom.TagName.B)[1]);
}
</script>
</body>
</html>
|
