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refactor(jqLite): make HTML-parsing constructor more robust (v1.2.x) #6963

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refactor(jqLite): make HTML-parsing constructor more robust (v1.2.x) #6963

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cc107fb
refactor(jqLite): make HTML-parsing constructor more robust
caitp Apr 2, 2014
13c4f51
test($compile): add tests for <option> or <optgroup> tags as root tem…
Apr 1, 2014
f01ed2e
refactor(jqLite): try to make jqLite fixes work for IE8
caitp Apr 2, 2014
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1 change: 1 addition & 0 deletions src/.jshintrc
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Original file line number Diff line number Diff line change
Expand Up @@ -135,6 +135,7 @@
"JQLitePrototype": false,
"addEventListenerFn": false,
"removeEventListenerFn": false,
"jqLiteIsTextNode": false,

/* apis.js */
"hashKey": false,
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78 changes: 71 additions & 7 deletions src/jqLite.js
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Expand Up @@ -179,6 +179,75 @@ function jqLitePatchJQueryRemove(name, dispatchThis, filterElems, getterIfNoArgu
}
}

var SINGLE_TAG_REGEXP = /^<(\w+)\s*\/?>(?:<\/\1>|)$/;
var HTML_REGEXP = /<|&#?\w+;/;
var TAG_NAME_REGEXP = /<([\w:]+)/;
var XHTML_TAG_REGEXP = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi;

var wrapMap = {
'option': [1, '<select multiple="multiple">', '</select>'],

'thead': [1, '<table>', '</table>'],
'col': [2, '<table><colgroup>', '</colgroup></table>'],
'tr': [2, '<table><tbody>', '</tbody></table>'],
'td': [3, '<table><tbody><tr>', '</tr></tbody></table>'],
'_default': [0, "", ""]
};

wrapMap.optgroup = wrapMap.option;
wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;

function jqLiteIsTextNode(html) {
return !HTML_REGEXP.test(html);
}

function jqLiteBuildFragment(html, context) {
var elem, tmp, tag, wrap,
fragment = context.createDocumentFragment(),
nodes = [], i, j, jj;

if (jqLiteIsTextNode(html)) {
// Convert non-html into a text node
nodes.push(context.createTextNode(html));
} else {
tmp = fragment.appendChild(context.createElement('div'));
// Convert html into DOM nodes
tag = (TAG_NAME_REGEXP.exec(html) || ["", ""])[1].toLowerCase();
wrap = wrapMap[tag] || wrapMap._default;
tmp.innerHTML = '<div>&#160;</div>' +
wrap[1] + html.replace(XHTML_TAG_REGEXP, "<$1></$2>") + wrap[2];
tmp.removeChild(tmp.firstChild);

// Descend through wrappers to the right content
i = wrap[0];
while (i--) {
tmp = tmp.lastChild;
}

for (j=0, jj=tmp.childNodes.length; j<jj; ++j) nodes.push(tmp.childNodes[j]);

tmp = fragment.firstChild;
tmp.textContent = "";
}

// Remove wrapper from fragment
fragment.textContent = "";
fragment.innerHTML = ""; // Clear inner HTML
return nodes;
}

function jqLiteParseHTML(html, context) {
context = context || document;
var parsed;

if ((parsed = SINGLE_TAG_REGEXP.exec(html))) {
return [context.createElement(parsed[1])];
}

return jqLiteBuildFragment(html, context);
}

/////////////////////////////////////////////
function JQLite(element) {
if (element instanceof JQLite) {
Expand All @@ -195,14 +264,9 @@ function JQLite(element) {
}

if (isString(element)) {
var div = document.createElement('div');
// Read about the NoScope elements here:
// http://msdn.microsoft.com/en-us/library/ms533897(VS.85).aspx
div.innerHTML = '<div>&#160;</div>' + element; // IE insanity to make NoScope elements work!
div.removeChild(div.firstChild); // remove the superfluous div
jqLiteAddNodes(this, div.childNodes);
jqLiteAddNodes(this, jqLiteParseHTML(element));
var fragment = jqLite(document.createDocumentFragment());
fragment.append(this); // detach the elements from the temporary DOM div.
fragment.append(this);
} else {
jqLiteAddNodes(this, element);
}
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36 changes: 11 additions & 25 deletions src/ng/compile.js
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Expand Up @@ -513,8 +513,7 @@ function $CompileProvider($provide, $$sanitizeUriProvider) {
var hasDirectives = {},
Suffix = 'Directive',
COMMENT_DIRECTIVE_REGEXP = /^\s*directive\:\s*([\d\w\-_]+)\s+(.*)$/,
CLASS_DIRECTIVE_REGEXP = /(([\d\w\-_]+)(?:\:([^;]+))?;?)/,
TABLE_CONTENT_REGEXP = /^<\s*(tr|th|td|thead|tbody|tfoot)(\s+[^>]*)?>/i;
CLASS_DIRECTIVE_REGEXP = /(([\d\w\-_]+)(?:\:([^;]+))?;?)/;

// Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes
// The assumption is that future DOM event attribute names will begin with
Expand Down Expand Up @@ -1256,7 +1255,11 @@ function $CompileProvider($provide, $$sanitizeUriProvider) {

if (directive.replace) {
replaceDirective = directive;
$template = directiveTemplateContents(directiveValue);
if (jqLiteIsTextNode(directiveValue)) {
$template = [];
} else {
$template = jqLite(directiveValue);
}
compileNode = $template[0];

if ($template.length != 1 || compileNode.nodeType !== 1) {
Expand Down Expand Up @@ -1655,27 +1658,6 @@ function $CompileProvider($provide, $$sanitizeUriProvider) {
}


function directiveTemplateContents(template) {
var type;
template = trim(template);
if ((type = TABLE_CONTENT_REGEXP.exec(template))) {
type = type[1].toLowerCase();
var table = jqLite('<table>' + template + '</table>');
if (/(thead|tbody|tfoot)/.test(type)) {
return table.children(type);
}
table = table.children('tbody');
if (type === 'tr') {
return table.children('tr');
}
return table.children('tr').contents();
}
return jqLite('<div>' +
template +
'</div>').contents();
}


function compileTemplateUrl(directives, $compileNode, tAttrs,
$rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {
var linkQueue = [],
Expand All @@ -1700,7 +1682,11 @@ function $CompileProvider($provide, $$sanitizeUriProvider) {
content = denormalizeTemplate(content);

if (origAsyncDirective.replace) {
$template = directiveTemplateContents(content);
if (jqLiteIsTextNode(content)) {
$template = [];
} else {
$template = jqLite(content);
}
compileNode = $template[0];

if ($template.length != 1 || compileNode.nodeType !== 1) {
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30 changes: 30 additions & 0 deletions test/jqLiteSpec.js
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Expand Up @@ -95,6 +95,36 @@ describe('jqLite', function() {
expect(fragment.length).toBe(1);
expect(fragment[0].nodeType).toBe(11);
});


it('should allow construction of <option> elements', function() {
var nodes = jqLite('<option>');
expect(nodes.length).toBe(1);
expect(nodes[0].nodeName.toLowerCase()).toBe('option');
});


// Special tests for the construction of elements which are restricted (in the HTML5 spec) to
// being children of specific nodes.
forEach([
'caption',
'colgroup',
'col',
'optgroup',
'opt',
'tbody',
'td',
'tfoot',
'th',
'thead',
'tr'
], function(name) {
it('should allow construction of <$NAME$> elements'.replace('$NAME$', name), function() {
var nodes = jqLite('<$NAME$>'.replace('$NAME$', name));
expect(nodes.length).toBe(1);
expect(nodes[0].nodeName.toLowerCase()).toBe(name);
});
});
});

describe('_data', function() {
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48 changes: 48 additions & 0 deletions test/ng/compileSpec.js
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Expand Up @@ -541,6 +541,14 @@ describe('$compile', function() {
replace: true,
template: '<tfoot><tr><td>TD</td></tr></tfoot>'
}));
directive('replaceWithOption', valueFn({
replace: true,
template: '<option>OPTION</option>'
}));
directive('replaceWithOptgroup', valueFn({
replace: true,
template: '<optgroup>OPTGROUP</optgroup>'
}));
}));


Expand Down Expand Up @@ -746,6 +754,20 @@ describe('$compile', function() {
}).not.toThrow();
expect(nodeName_(element)).toMatch(/tfoot/i);
}));

it('should support templates with root <option> tags', inject(function($compile, $rootScope) {
expect(function() {
element = $compile('<div replace-with-option></div>')($rootScope);
}).not.toThrow();
expect(nodeName_(element)).toMatch(/option/i);
}));

it('should support templates with root <optgroup> tags', inject(function($compile, $rootScope) {
expect(function() {
element = $compile('<div replace-with-optgroup></div>')($rootScope);
}).not.toThrow();
expect(nodeName_(element)).toMatch(/optgroup/i);
}));
});


Expand Down Expand Up @@ -867,6 +889,14 @@ describe('$compile', function() {
replace: true,
templateUrl: 'tfoot.html'
}));
directive('replaceWithOption', valueFn({
replace: true,
templateUrl: 'option.html'
}));
directive('replaceWithOptgroup', valueFn({
replace: true,
templateUrl: 'optgroup.html'
}));
}
));

Expand Down Expand Up @@ -1556,6 +1586,24 @@ describe('$compile', function() {
$rootScope.$digest();
expect(nodeName_(element)).toMatch(/tfoot/i);
}));

it('should support templates with root <option> tags', inject(function($compile, $rootScope, $templateCache) {
$templateCache.put('option.html', '<option>OPTION</option>');
expect(function() {
element = $compile('<div replace-with-option></div>')($rootScope);
}).not.toThrow();
$rootScope.$digest();
expect(nodeName_(element)).toMatch(/option/i);
}));

it('should support templates with root <optgroup> tags', inject(function($compile, $rootScope, $templateCache) {
$templateCache.put('optgroup.html', '<optgroup>OPTGROUP</optgroup>');
expect(function() {
element = $compile('<div replace-with-optgroup></div>')($rootScope);
}).not.toThrow();
$rootScope.$digest();
expect(nodeName_(element)).toMatch(/optgroup/i);
}));
});


Expand Down