提交 | 用户 | 时间
|
58d006
|
1 |
/** |
A |
2 |
* @preserve HTML5 Shiv 3.7.3 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed |
|
3 |
*/ |
|
4 |
;(function(window, document) { |
|
5 |
/*jshint evil:true */ |
|
6 |
/** version */ |
|
7 |
var version = '3.7.3'; |
|
8 |
|
|
9 |
/** Preset options */ |
|
10 |
var options = window.html5 || {}; |
|
11 |
|
|
12 |
/** Used to skip problem elements */ |
|
13 |
var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i; |
|
14 |
|
|
15 |
/** Not all elements can be cloned in IE **/ |
|
16 |
var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i; |
|
17 |
|
|
18 |
/** Detect whether the browser supports default html5 styles */ |
|
19 |
var supportsHtml5Styles; |
|
20 |
|
|
21 |
/** Name of the expando, to work with multiple documents or to re-shiv one document */ |
|
22 |
var expando = '_html5shiv'; |
|
23 |
|
|
24 |
/** The id for the the documents expando */ |
|
25 |
var expanID = 0; |
|
26 |
|
|
27 |
/** Cached data for each document */ |
|
28 |
var expandoData = {}; |
|
29 |
|
|
30 |
/** Detect whether the browser supports unknown elements */ |
|
31 |
var supportsUnknownElements; |
|
32 |
|
|
33 |
(function() { |
|
34 |
try { |
|
35 |
var a = document.createElement('a'); |
|
36 |
a.innerHTML = '<xyz></xyz>'; |
|
37 |
//if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles |
|
38 |
supportsHtml5Styles = ('hidden' in a); |
|
39 |
|
|
40 |
supportsUnknownElements = a.childNodes.length == 1 || (function() { |
|
41 |
// assign a false positive if unable to shiv |
|
42 |
(document.createElement)('a'); |
|
43 |
var frag = document.createDocumentFragment(); |
|
44 |
return ( |
|
45 |
typeof frag.cloneNode == 'undefined' || |
|
46 |
typeof frag.createDocumentFragment == 'undefined' || |
|
47 |
typeof frag.createElement == 'undefined' |
|
48 |
); |
|
49 |
}()); |
|
50 |
} catch(e) { |
|
51 |
// assign a false positive if detection fails => unable to shiv |
|
52 |
supportsHtml5Styles = true; |
|
53 |
supportsUnknownElements = true; |
|
54 |
} |
|
55 |
|
|
56 |
}()); |
|
57 |
|
|
58 |
/*--------------------------------------------------------------------------*/ |
|
59 |
|
|
60 |
/** |
|
61 |
* Creates a style sheet with the given CSS text and adds it to the document. |
|
62 |
* @private |
|
63 |
* @param {Document} ownerDocument The document. |
|
64 |
* @param {String} cssText The CSS text. |
|
65 |
* @returns {StyleSheet} The style element. |
|
66 |
*/ |
|
67 |
function addStyleSheet(ownerDocument, cssText) { |
|
68 |
var p = ownerDocument.createElement('p'), |
|
69 |
parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement; |
|
70 |
|
|
71 |
p.innerHTML = 'x<style>' + cssText + '</style>'; |
|
72 |
return parent.insertBefore(p.lastChild, parent.firstChild); |
|
73 |
} |
|
74 |
|
|
75 |
/** |
|
76 |
* Returns the value of `html5.elements` as an array. |
|
77 |
* @private |
|
78 |
* @returns {Array} An array of shived element node names. |
|
79 |
*/ |
|
80 |
function getElements() { |
|
81 |
var elements = html5.elements; |
|
82 |
return typeof elements == 'string' ? elements.split(' ') : elements; |
|
83 |
} |
|
84 |
|
|
85 |
/** |
|
86 |
* Extends the built-in list of html5 elements |
|
87 |
* @memberOf html5 |
|
88 |
* @param {String|Array} newElements whitespace separated list or array of new element names to shiv |
|
89 |
* @param {Document} ownerDocument The context document. |
|
90 |
*/ |
|
91 |
function addElements(newElements, ownerDocument) { |
|
92 |
var elements = html5.elements; |
|
93 |
if(typeof elements != 'string'){ |
|
94 |
elements = elements.join(' '); |
|
95 |
} |
|
96 |
if(typeof newElements != 'string'){ |
|
97 |
newElements = newElements.join(' '); |
|
98 |
} |
|
99 |
html5.elements = elements +' '+ newElements; |
|
100 |
shivDocument(ownerDocument); |
|
101 |
} |
|
102 |
|
|
103 |
/** |
|
104 |
* Returns the data associated to the given document |
|
105 |
* @private |
|
106 |
* @param {Document} ownerDocument The document. |
|
107 |
* @returns {Object} An object of data. |
|
108 |
*/ |
|
109 |
function getExpandoData(ownerDocument) { |
|
110 |
var data = expandoData[ownerDocument[expando]]; |
|
111 |
if (!data) { |
|
112 |
data = {}; |
|
113 |
expanID++; |
|
114 |
ownerDocument[expando] = expanID; |
|
115 |
expandoData[expanID] = data; |
|
116 |
} |
|
117 |
return data; |
|
118 |
} |
|
119 |
|
|
120 |
/** |
|
121 |
* returns a shived element for the given nodeName and document |
|
122 |
* @memberOf html5 |
|
123 |
* @param {String} nodeName name of the element |
|
124 |
* @param {Document} ownerDocument The context document. |
|
125 |
* @returns {Object} The shived element. |
|
126 |
*/ |
|
127 |
function createElement(nodeName, ownerDocument, data){ |
|
128 |
if (!ownerDocument) { |
|
129 |
ownerDocument = document; |
|
130 |
} |
|
131 |
if(supportsUnknownElements){ |
|
132 |
return ownerDocument.createElement(nodeName); |
|
133 |
} |
|
134 |
if (!data) { |
|
135 |
data = getExpandoData(ownerDocument); |
|
136 |
} |
|
137 |
var node; |
|
138 |
|
|
139 |
if (data.cache[nodeName]) { |
|
140 |
node = data.cache[nodeName].cloneNode(); |
|
141 |
} else if (saveClones.test(nodeName)) { |
|
142 |
node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode(); |
|
143 |
} else { |
|
144 |
node = data.createElem(nodeName); |
|
145 |
} |
|
146 |
|
|
147 |
// Avoid adding some elements to fragments in IE < 9 because |
|
148 |
// * Attributes like `name` or `type` cannot be set/changed once an element |
|
149 |
// is inserted into a document/fragment |
|
150 |
// * Link elements with `src` attributes that are inaccessible, as with |
|
151 |
// a 403 response, will cause the tab/window to crash |
|
152 |
// * Script elements appended to fragments will execute when their `src` |
|
153 |
// or `text` property is set |
|
154 |
return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node; |
|
155 |
} |
|
156 |
|
|
157 |
/** |
|
158 |
* returns a shived DocumentFragment for the given document |
|
159 |
* @memberOf html5 |
|
160 |
* @param {Document} ownerDocument The context document. |
|
161 |
* @returns {Object} The shived DocumentFragment. |
|
162 |
*/ |
|
163 |
function createDocumentFragment(ownerDocument, data){ |
|
164 |
if (!ownerDocument) { |
|
165 |
ownerDocument = document; |
|
166 |
} |
|
167 |
if(supportsUnknownElements){ |
|
168 |
return ownerDocument.createDocumentFragment(); |
|
169 |
} |
|
170 |
data = data || getExpandoData(ownerDocument); |
|
171 |
var clone = data.frag.cloneNode(), |
|
172 |
i = 0, |
|
173 |
elems = getElements(), |
|
174 |
l = elems.length; |
|
175 |
for(;i<l;i++){ |
|
176 |
clone.createElement(elems[i]); |
|
177 |
} |
|
178 |
return clone; |
|
179 |
} |
|
180 |
|
|
181 |
/** |
|
182 |
* Shivs the `createElement` and `createDocumentFragment` methods of the document. |
|
183 |
* @private |
|
184 |
* @param {Document|DocumentFragment} ownerDocument The document. |
|
185 |
* @param {Object} data of the document. |
|
186 |
*/ |
|
187 |
function shivMethods(ownerDocument, data) { |
|
188 |
if (!data.cache) { |
|
189 |
data.cache = {}; |
|
190 |
data.createElem = ownerDocument.createElement; |
|
191 |
data.createFrag = ownerDocument.createDocumentFragment; |
|
192 |
data.frag = data.createFrag(); |
|
193 |
} |
|
194 |
|
|
195 |
|
|
196 |
ownerDocument.createElement = function(nodeName) { |
|
197 |
//abort shiv |
|
198 |
if (!html5.shivMethods) { |
|
199 |
return data.createElem(nodeName); |
|
200 |
} |
|
201 |
return createElement(nodeName, ownerDocument, data); |
|
202 |
}; |
|
203 |
|
|
204 |
ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' + |
|
205 |
'var n=f.cloneNode(),c=n.createElement;' + |
|
206 |
'h.shivMethods&&(' + |
|
207 |
// unroll the `createElement` calls |
|
208 |
getElements().join().replace(/[\w\-:]+/g, function(nodeName) { |
|
209 |
data.createElem(nodeName); |
|
210 |
data.frag.createElement(nodeName); |
|
211 |
return 'c("' + nodeName + '")'; |
|
212 |
}) + |
|
213 |
');return n}' |
|
214 |
)(html5, data.frag); |
|
215 |
} |
|
216 |
|
|
217 |
/*--------------------------------------------------------------------------*/ |
|
218 |
|
|
219 |
/** |
|
220 |
* Shivs the given document. |
|
221 |
* @memberOf html5 |
|
222 |
* @param {Document} ownerDocument The document to shiv. |
|
223 |
* @returns {Document} The shived document. |
|
224 |
*/ |
|
225 |
function shivDocument(ownerDocument) { |
|
226 |
if (!ownerDocument) { |
|
227 |
ownerDocument = document; |
|
228 |
} |
|
229 |
var data = getExpandoData(ownerDocument); |
|
230 |
|
|
231 |
if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) { |
|
232 |
data.hasCSS = !!addStyleSheet(ownerDocument, |
|
233 |
// corrects block display not defined in IE6/7/8/9 |
|
234 |
'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' + |
|
235 |
// adds styling not present in IE6/7/8/9 |
|
236 |
'mark{background:#FF0;color:#000}' + |
|
237 |
// hides non-rendered elements |
|
238 |
'template{display:none}' |
|
239 |
); |
|
240 |
} |
|
241 |
if (!supportsUnknownElements) { |
|
242 |
shivMethods(ownerDocument, data); |
|
243 |
} |
|
244 |
return ownerDocument; |
|
245 |
} |
|
246 |
|
|
247 |
/*--------------------------------------------------------------------------*/ |
|
248 |
|
|
249 |
/** |
|
250 |
* The `html5` object is exposed so that more elements can be shived and |
|
251 |
* existing shiving can be detected on iframes. |
|
252 |
* @type Object |
|
253 |
* @example |
|
254 |
* |
|
255 |
* // options can be changed before the script is included |
|
256 |
* html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false }; |
|
257 |
*/ |
|
258 |
var html5 = { |
|
259 |
|
|
260 |
/** |
|
261 |
* An array or space separated string of node names of the elements to shiv. |
|
262 |
* @memberOf html5 |
|
263 |
* @type Array|String |
|
264 |
*/ |
|
265 |
'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output picture progress section summary template time video', |
|
266 |
|
|
267 |
/** |
|
268 |
* current version of html5shiv |
|
269 |
*/ |
|
270 |
'version': version, |
|
271 |
|
|
272 |
/** |
|
273 |
* A flag to indicate that the HTML5 style sheet should be inserted. |
|
274 |
* @memberOf html5 |
|
275 |
* @type Boolean |
|
276 |
*/ |
|
277 |
'shivCSS': (options.shivCSS !== false), |
|
278 |
|
|
279 |
/** |
|
280 |
* Is equal to true if a browser supports creating unknown/HTML5 elements |
|
281 |
* @memberOf html5 |
|
282 |
* @type boolean |
|
283 |
*/ |
|
284 |
'supportsUnknownElements': supportsUnknownElements, |
|
285 |
|
|
286 |
/** |
|
287 |
* A flag to indicate that the document's `createElement` and `createDocumentFragment` |
|
288 |
* methods should be overwritten. |
|
289 |
* @memberOf html5 |
|
290 |
* @type Boolean |
|
291 |
*/ |
|
292 |
'shivMethods': (options.shivMethods !== false), |
|
293 |
|
|
294 |
/** |
|
295 |
* A string to describe the type of `html5` object ("default" or "default print"). |
|
296 |
* @memberOf html5 |
|
297 |
* @type String |
|
298 |
*/ |
|
299 |
'type': 'default', |
|
300 |
|
|
301 |
// shivs the document according to the specified `html5` object options |
|
302 |
'shivDocument': shivDocument, |
|
303 |
|
|
304 |
//creates a shived element |
|
305 |
createElement: createElement, |
|
306 |
|
|
307 |
//creates a shived documentFragment |
|
308 |
createDocumentFragment: createDocumentFragment, |
|
309 |
|
|
310 |
//extends list of elements |
|
311 |
addElements: addElements |
|
312 |
}; |
|
313 |
|
|
314 |
/*--------------------------------------------------------------------------*/ |
|
315 |
|
|
316 |
// expose html5 |
|
317 |
window.html5 = html5; |
|
318 |
|
|
319 |
// shiv the document |
|
320 |
shivDocument(document); |
|
321 |
|
|
322 |
/*------------------------------- Print Shiv -------------------------------*/ |
|
323 |
|
|
324 |
/** Used to filter media types */ |
|
325 |
var reMedia = /^$|\b(?:all|print)\b/; |
|
326 |
|
|
327 |
/** Used to namespace printable elements */ |
|
328 |
var shivNamespace = 'html5shiv'; |
|
329 |
|
|
330 |
/** Detect whether the browser supports shivable style sheets */ |
|
331 |
var supportsShivableSheets = !supportsUnknownElements && (function() { |
|
332 |
// assign a false negative if unable to shiv |
|
333 |
var docEl = document.documentElement; |
|
334 |
return !( |
|
335 |
typeof document.namespaces == 'undefined' || |
|
336 |
typeof document.parentWindow == 'undefined' || |
|
337 |
typeof docEl.applyElement == 'undefined' || |
|
338 |
typeof docEl.removeNode == 'undefined' || |
|
339 |
typeof window.attachEvent == 'undefined' |
|
340 |
); |
|
341 |
}()); |
|
342 |
|
|
343 |
/*--------------------------------------------------------------------------*/ |
|
344 |
|
|
345 |
/** |
|
346 |
* Wraps all HTML5 elements in the given document with printable elements. |
|
347 |
* (eg. the "header" element is wrapped with the "html5shiv:header" element) |
|
348 |
* @private |
|
349 |
* @param {Document} ownerDocument The document. |
|
350 |
* @returns {Array} An array wrappers added. |
|
351 |
*/ |
|
352 |
function addWrappers(ownerDocument) { |
|
353 |
var node, |
|
354 |
nodes = ownerDocument.getElementsByTagName('*'), |
|
355 |
index = nodes.length, |
|
356 |
reElements = RegExp('^(?:' + getElements().join('|') + ')$', 'i'), |
|
357 |
result = []; |
|
358 |
|
|
359 |
while (index--) { |
|
360 |
node = nodes[index]; |
|
361 |
if (reElements.test(node.nodeName)) { |
|
362 |
result.push(node.applyElement(createWrapper(node))); |
|
363 |
} |
|
364 |
} |
|
365 |
return result; |
|
366 |
} |
|
367 |
|
|
368 |
/** |
|
369 |
* Creates a printable wrapper for the given element. |
|
370 |
* @private |
|
371 |
* @param {Element} element The element. |
|
372 |
* @returns {Element} The wrapper. |
|
373 |
*/ |
|
374 |
function createWrapper(element) { |
|
375 |
var node, |
|
376 |
nodes = element.attributes, |
|
377 |
index = nodes.length, |
|
378 |
wrapper = element.ownerDocument.createElement(shivNamespace + ':' + element.nodeName); |
|
379 |
|
|
380 |
// copy element attributes to the wrapper |
|
381 |
while (index--) { |
|
382 |
node = nodes[index]; |
|
383 |
node.specified && wrapper.setAttribute(node.nodeName, node.nodeValue); |
|
384 |
} |
|
385 |
// copy element styles to the wrapper |
|
386 |
wrapper.style.cssText = element.style.cssText; |
|
387 |
return wrapper; |
|
388 |
} |
|
389 |
|
|
390 |
/** |
|
391 |
* Shivs the given CSS text. |
|
392 |
* (eg. header{} becomes html5shiv\:header{}) |
|
393 |
* @private |
|
394 |
* @param {String} cssText The CSS text to shiv. |
|
395 |
* @returns {String} The shived CSS text. |
|
396 |
*/ |
|
397 |
function shivCssText(cssText) { |
|
398 |
var pair, |
|
399 |
parts = cssText.split('{'), |
|
400 |
index = parts.length, |
|
401 |
reElements = RegExp('(^|[\\s,>+~])(' + getElements().join('|') + ')(?=[[\\s,>+~#.:]|$)', 'gi'), |
|
402 |
replacement = '$1' + shivNamespace + '\\:$2'; |
|
403 |
|
|
404 |
while (index--) { |
|
405 |
pair = parts[index] = parts[index].split('}'); |
|
406 |
pair[pair.length - 1] = pair[pair.length - 1].replace(reElements, replacement); |
|
407 |
parts[index] = pair.join('}'); |
|
408 |
} |
|
409 |
return parts.join('{'); |
|
410 |
} |
|
411 |
|
|
412 |
/** |
|
413 |
* Removes the given wrappers, leaving the original elements. |
|
414 |
* @private |
|
415 |
* @params {Array} wrappers An array of printable wrappers. |
|
416 |
*/ |
|
417 |
function removeWrappers(wrappers) { |
|
418 |
var index = wrappers.length; |
|
419 |
while (index--) { |
|
420 |
wrappers[index].removeNode(); |
|
421 |
} |
|
422 |
} |
|
423 |
|
|
424 |
/*--------------------------------------------------------------------------*/ |
|
425 |
|
|
426 |
/** |
|
427 |
* Shivs the given document for print. |
|
428 |
* @memberOf html5 |
|
429 |
* @param {Document} ownerDocument The document to shiv. |
|
430 |
* @returns {Document} The shived document. |
|
431 |
*/ |
|
432 |
function shivPrint(ownerDocument) { |
|
433 |
var shivedSheet, |
|
434 |
wrappers, |
|
435 |
data = getExpandoData(ownerDocument), |
|
436 |
namespaces = ownerDocument.namespaces, |
|
437 |
ownerWindow = ownerDocument.parentWindow; |
|
438 |
|
|
439 |
if (!supportsShivableSheets || ownerDocument.printShived) { |
|
440 |
return ownerDocument; |
|
441 |
} |
|
442 |
if (typeof namespaces[shivNamespace] == 'undefined') { |
|
443 |
namespaces.add(shivNamespace); |
|
444 |
} |
|
445 |
|
|
446 |
function removeSheet() { |
|
447 |
clearTimeout(data._removeSheetTimer); |
|
448 |
if (shivedSheet) { |
|
449 |
shivedSheet.removeNode(true); |
|
450 |
} |
|
451 |
shivedSheet= null; |
|
452 |
} |
|
453 |
|
|
454 |
ownerWindow.attachEvent('onbeforeprint', function() { |
|
455 |
|
|
456 |
removeSheet(); |
|
457 |
|
|
458 |
var imports, |
|
459 |
length, |
|
460 |
sheet, |
|
461 |
collection = ownerDocument.styleSheets, |
|
462 |
cssText = [], |
|
463 |
index = collection.length, |
|
464 |
sheets = Array(index); |
|
465 |
|
|
466 |
// convert styleSheets collection to an array |
|
467 |
while (index--) { |
|
468 |
sheets[index] = collection[index]; |
|
469 |
} |
|
470 |
// concat all style sheet CSS text |
|
471 |
while ((sheet = sheets.pop())) { |
|
472 |
// IE does not enforce a same origin policy for external style sheets... |
|
473 |
// but has trouble with some dynamically created stylesheets |
|
474 |
if (!sheet.disabled && reMedia.test(sheet.media)) { |
|
475 |
|
|
476 |
try { |
|
477 |
imports = sheet.imports; |
|
478 |
length = imports.length; |
|
479 |
} catch(er){ |
|
480 |
length = 0; |
|
481 |
} |
|
482 |
|
|
483 |
for (index = 0; index < length; index++) { |
|
484 |
sheets.push(imports[index]); |
|
485 |
} |
|
486 |
|
|
487 |
try { |
|
488 |
cssText.push(sheet.cssText); |
|
489 |
} catch(er){} |
|
490 |
} |
|
491 |
} |
|
492 |
|
|
493 |
// wrap all HTML5 elements with printable elements and add the shived style sheet |
|
494 |
cssText = shivCssText(cssText.reverse().join('')); |
|
495 |
wrappers = addWrappers(ownerDocument); |
|
496 |
shivedSheet = addStyleSheet(ownerDocument, cssText); |
|
497 |
|
|
498 |
}); |
|
499 |
|
|
500 |
ownerWindow.attachEvent('onafterprint', function() { |
|
501 |
// remove wrappers, leaving the original elements, and remove the shived style sheet |
|
502 |
removeWrappers(wrappers); |
|
503 |
clearTimeout(data._removeSheetTimer); |
|
504 |
data._removeSheetTimer = setTimeout(removeSheet, 500); |
|
505 |
}); |
|
506 |
|
|
507 |
ownerDocument.printShived = true; |
|
508 |
return ownerDocument; |
|
509 |
} |
|
510 |
|
|
511 |
/*--------------------------------------------------------------------------*/ |
|
512 |
|
|
513 |
// expose API |
|
514 |
html5.type += ' print'; |
|
515 |
html5.shivPrint = shivPrint; |
|
516 |
|
|
517 |
// shiv for print |
|
518 |
shivPrint(document); |
|
519 |
|
|
520 |
if(typeof module == 'object' && module.exports){ |
|
521 |
module.exports = html5; |
|
522 |
} |
|
523 |
|
|
524 |
}(typeof window !== "undefined" ? window : this, document)); |