500 lines
15 KiB
JavaScript
500 lines
15 KiB
JavaScript
/**
|
|
* @preserve HTML5 Shiv v3.6.2 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
|
|
*/
|
|
;(function(window, document) {
|
|
/*jshint evil:true */
|
|
/** version */
|
|
var version = '3.6.2';
|
|
|
|
/** Preset options */
|
|
var options = window.html5 || {};
|
|
|
|
/** Used to skip problem elements */
|
|
var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;
|
|
|
|
/** Not all elements can be cloned in IE **/
|
|
var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i;
|
|
|
|
/** Detect whether the browser supports default html5 styles */
|
|
var supportsHtml5Styles;
|
|
|
|
/** Name of the expando, to work with multiple documents or to re-shiv one document */
|
|
var expando = '_html5shiv';
|
|
|
|
/** The id for the the documents expando */
|
|
var expanID = 0;
|
|
|
|
/** Cached data for each document */
|
|
var expandoData = {};
|
|
|
|
/** Detect whether the browser supports unknown elements */
|
|
var supportsUnknownElements;
|
|
|
|
(function() {
|
|
try {
|
|
var a = document.createElement('a');
|
|
a.innerHTML = '<xyz></xyz>';
|
|
//if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
|
|
supportsHtml5Styles = ('hidden' in a);
|
|
|
|
supportsUnknownElements = a.childNodes.length == 1 || (function() {
|
|
// assign a false positive if unable to shiv
|
|
(document.createElement)('a');
|
|
var frag = document.createDocumentFragment();
|
|
return (
|
|
typeof frag.cloneNode == 'undefined' ||
|
|
typeof frag.createDocumentFragment == 'undefined' ||
|
|
typeof frag.createElement == 'undefined'
|
|
);
|
|
}());
|
|
} catch(e) {
|
|
// assign a false positive if detection fails => unable to shiv
|
|
supportsHtml5Styles = true;
|
|
supportsUnknownElements = true;
|
|
}
|
|
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Creates a style sheet with the given CSS text and adds it to the document.
|
|
* @private
|
|
* @param {Document} ownerDocument The document.
|
|
* @param {String} cssText The CSS text.
|
|
* @returns {StyleSheet} The style element.
|
|
*/
|
|
function addStyleSheet(ownerDocument, cssText) {
|
|
var p = ownerDocument.createElement('p'),
|
|
parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement;
|
|
|
|
p.innerHTML = 'x<style>' + cssText + '</style>';
|
|
return parent.insertBefore(p.lastChild, parent.firstChild);
|
|
}
|
|
|
|
/**
|
|
* Returns the value of `html5.elements` as an array.
|
|
* @private
|
|
* @returns {Array} An array of shived element node names.
|
|
*/
|
|
function getElements() {
|
|
var elements = html5.elements;
|
|
return typeof elements == 'string' ? elements.split(' ') : elements;
|
|
}
|
|
|
|
/**
|
|
* Returns the data associated to the given document
|
|
* @private
|
|
* @param {Document} ownerDocument The document.
|
|
* @returns {Object} An object of data.
|
|
*/
|
|
function getExpandoData(ownerDocument) {
|
|
var data = expandoData[ownerDocument[expando]];
|
|
if (!data) {
|
|
data = {};
|
|
expanID++;
|
|
ownerDocument[expando] = expanID;
|
|
expandoData[expanID] = data;
|
|
}
|
|
return data;
|
|
}
|
|
|
|
/**
|
|
* returns a shived element for the given nodeName and document
|
|
* @memberOf html5
|
|
* @param {String} nodeName name of the element
|
|
* @param {Document} ownerDocument The context document.
|
|
* @returns {Object} The shived element.
|
|
*/
|
|
function createElement(nodeName, ownerDocument, data){
|
|
if (!ownerDocument) {
|
|
ownerDocument = document;
|
|
}
|
|
if(supportsUnknownElements){
|
|
return ownerDocument.createElement(nodeName);
|
|
}
|
|
if (!data) {
|
|
data = getExpandoData(ownerDocument);
|
|
}
|
|
var node;
|
|
|
|
if (data.cache[nodeName]) {
|
|
node = data.cache[nodeName].cloneNode();
|
|
} else if (saveClones.test(nodeName)) {
|
|
node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
|
|
} else {
|
|
node = data.createElem(nodeName);
|
|
}
|
|
|
|
// Avoid adding some elements to fragments in IE < 9 because
|
|
// * Attributes like `name` or `type` cannot be set/changed once an element
|
|
// is inserted into a document/fragment
|
|
// * Link elements with `src` attributes that are inaccessible, as with
|
|
// a 403 response, will cause the tab/window to crash
|
|
// * Script elements appended to fragments will execute when their `src`
|
|
// or `text` property is set
|
|
return node.canHaveChildren && !reSkip.test(nodeName) ? data.frag.appendChild(node) : node;
|
|
}
|
|
|
|
/**
|
|
* returns a shived DocumentFragment for the given document
|
|
* @memberOf html5
|
|
* @param {Document} ownerDocument The context document.
|
|
* @returns {Object} The shived DocumentFragment.
|
|
*/
|
|
function createDocumentFragment(ownerDocument, data){
|
|
if (!ownerDocument) {
|
|
ownerDocument = document;
|
|
}
|
|
if(supportsUnknownElements){
|
|
return ownerDocument.createDocumentFragment();
|
|
}
|
|
data = data || getExpandoData(ownerDocument);
|
|
var clone = data.frag.cloneNode(),
|
|
i = 0,
|
|
elems = getElements(),
|
|
l = elems.length;
|
|
for(;i<l;i++){
|
|
clone.createElement(elems[i]);
|
|
}
|
|
return clone;
|
|
}
|
|
|
|
/**
|
|
* Shivs the `createElement` and `createDocumentFragment` methods of the document.
|
|
* @private
|
|
* @param {Document|DocumentFragment} ownerDocument The document.
|
|
* @param {Object} data of the document.
|
|
*/
|
|
function shivMethods(ownerDocument, data) {
|
|
if (!data.cache) {
|
|
data.cache = {};
|
|
data.createElem = ownerDocument.createElement;
|
|
data.createFrag = ownerDocument.createDocumentFragment;
|
|
data.frag = data.createFrag();
|
|
}
|
|
|
|
|
|
ownerDocument.createElement = function(nodeName) {
|
|
//abort shiv
|
|
if (!html5.shivMethods) {
|
|
return data.createElem(nodeName);
|
|
}
|
|
return createElement(nodeName, ownerDocument, data);
|
|
};
|
|
|
|
ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' +
|
|
'var n=f.cloneNode(),c=n.createElement;' +
|
|
'h.shivMethods&&(' +
|
|
// unroll the `createElement` calls
|
|
getElements().join().replace(/\w+/g, function(nodeName) {
|
|
data.createElem(nodeName);
|
|
data.frag.createElement(nodeName);
|
|
return 'c("' + nodeName + '")';
|
|
}) +
|
|
');return n}'
|
|
)(html5, data.frag);
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Shivs the given document.
|
|
* @memberOf html5
|
|
* @param {Document} ownerDocument The document to shiv.
|
|
* @returns {Document} The shived document.
|
|
*/
|
|
function shivDocument(ownerDocument) {
|
|
if (!ownerDocument) {
|
|
ownerDocument = document;
|
|
}
|
|
var data = getExpandoData(ownerDocument);
|
|
|
|
if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
|
|
data.hasCSS = !!addStyleSheet(ownerDocument,
|
|
// corrects block display not defined in IE6/7/8/9
|
|
'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' +
|
|
// adds styling not present in IE6/7/8/9
|
|
'mark{background:#FF0;color:#000}' +
|
|
// hides non-rendered elements
|
|
'template{display:none}'
|
|
);
|
|
}
|
|
if (!supportsUnknownElements) {
|
|
shivMethods(ownerDocument, data);
|
|
}
|
|
return ownerDocument;
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* The `html5` object is exposed so that more elements can be shived and
|
|
* existing shiving can be detected on iframes.
|
|
* @type Object
|
|
* @example
|
|
*
|
|
* // options can be changed before the script is included
|
|
* html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
|
|
*/
|
|
var html5 = {
|
|
|
|
/**
|
|
* An array or space separated string of node names of the elements to shiv.
|
|
* @memberOf html5
|
|
* @type Array|String
|
|
*/
|
|
'elements': options.elements || 'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output progress section summary template time video',
|
|
|
|
/**
|
|
* current version of html5shiv
|
|
*/
|
|
'version': version,
|
|
|
|
/**
|
|
* A flag to indicate that the HTML5 style sheet should be inserted.
|
|
* @memberOf html5
|
|
* @type Boolean
|
|
*/
|
|
'shivCSS': (options.shivCSS !== false),
|
|
|
|
/**
|
|
* Is equal to true if a browser supports creating unknown/HTML5 elements
|
|
* @memberOf html5
|
|
* @type boolean
|
|
*/
|
|
'supportsUnknownElements': supportsUnknownElements,
|
|
|
|
/**
|
|
* A flag to indicate that the document's `createElement` and `createDocumentFragment`
|
|
* methods should be overwritten.
|
|
* @memberOf html5
|
|
* @type Boolean
|
|
*/
|
|
'shivMethods': (options.shivMethods !== false),
|
|
|
|
/**
|
|
* A string to describe the type of `html5` object ("default" or "default print").
|
|
* @memberOf html5
|
|
* @type String
|
|
*/
|
|
'type': 'default',
|
|
|
|
// shivs the document according to the specified `html5` object options
|
|
'shivDocument': shivDocument,
|
|
|
|
//creates a shived element
|
|
createElement: createElement,
|
|
|
|
//creates a shived documentFragment
|
|
createDocumentFragment: createDocumentFragment
|
|
};
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
// expose html5
|
|
window.html5 = html5;
|
|
|
|
// shiv the document
|
|
shivDocument(document);
|
|
|
|
/*------------------------------- Print Shiv -------------------------------*/
|
|
|
|
/** Used to filter media types */
|
|
var reMedia = /^$|\b(?:all|print)\b/;
|
|
|
|
/** Used to namespace printable elements */
|
|
var shivNamespace = 'html5shiv';
|
|
|
|
/** Detect whether the browser supports shivable style sheets */
|
|
var supportsShivableSheets = !supportsUnknownElements && (function() {
|
|
// assign a false negative if unable to shiv
|
|
var docEl = document.documentElement;
|
|
return !(
|
|
typeof document.namespaces == 'undefined' ||
|
|
typeof document.parentWindow == 'undefined' ||
|
|
typeof docEl.applyElement == 'undefined' ||
|
|
typeof docEl.removeNode == 'undefined' ||
|
|
typeof window.attachEvent == 'undefined'
|
|
);
|
|
}());
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Wraps all HTML5 elements in the given document with printable elements.
|
|
* (eg. the "header" element is wrapped with the "html5shiv:header" element)
|
|
* @private
|
|
* @param {Document} ownerDocument The document.
|
|
* @returns {Array} An array wrappers added.
|
|
*/
|
|
function addWrappers(ownerDocument) {
|
|
var node,
|
|
nodes = ownerDocument.getElementsByTagName('*'),
|
|
index = nodes.length,
|
|
reElements = RegExp('^(?:' + getElements().join('|') + ')$', 'i'),
|
|
result = [];
|
|
|
|
while (index--) {
|
|
node = nodes[index];
|
|
if (reElements.test(node.nodeName)) {
|
|
result.push(node.applyElement(createWrapper(node)));
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Creates a printable wrapper for the given element.
|
|
* @private
|
|
* @param {Element} element The element.
|
|
* @returns {Element} The wrapper.
|
|
*/
|
|
function createWrapper(element) {
|
|
var node,
|
|
nodes = element.attributes,
|
|
index = nodes.length,
|
|
wrapper = element.ownerDocument.createElement(shivNamespace + ':' + element.nodeName);
|
|
|
|
// copy element attributes to the wrapper
|
|
while (index--) {
|
|
node = nodes[index];
|
|
node.specified && wrapper.setAttribute(node.nodeName, node.nodeValue);
|
|
}
|
|
// copy element styles to the wrapper
|
|
wrapper.style.cssText = element.style.cssText;
|
|
return wrapper;
|
|
}
|
|
|
|
/**
|
|
* Shivs the given CSS text.
|
|
* (eg. header{} becomes html5shiv\:header{})
|
|
* @private
|
|
* @param {String} cssText The CSS text to shiv.
|
|
* @returns {String} The shived CSS text.
|
|
*/
|
|
function shivCssText(cssText) {
|
|
var pair,
|
|
parts = cssText.split('{'),
|
|
index = parts.length,
|
|
reElements = RegExp('(^|[\\s,>+~])(' + getElements().join('|') + ')(?=[[\\s,>+~#.:]|$)', 'gi'),
|
|
replacement = '$1' + shivNamespace + '\\:$2';
|
|
|
|
while (index--) {
|
|
pair = parts[index] = parts[index].split('}');
|
|
pair[pair.length - 1] = pair[pair.length - 1].replace(reElements, replacement);
|
|
parts[index] = pair.join('}');
|
|
}
|
|
return parts.join('{');
|
|
}
|
|
|
|
/**
|
|
* Removes the given wrappers, leaving the original elements.
|
|
* @private
|
|
* @params {Array} wrappers An array of printable wrappers.
|
|
*/
|
|
function removeWrappers(wrappers) {
|
|
var index = wrappers.length;
|
|
while (index--) {
|
|
wrappers[index].removeNode();
|
|
}
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
/**
|
|
* Shivs the given document for print.
|
|
* @memberOf html5
|
|
* @param {Document} ownerDocument The document to shiv.
|
|
* @returns {Document} The shived document.
|
|
*/
|
|
function shivPrint(ownerDocument) {
|
|
var shivedSheet,
|
|
wrappers,
|
|
data = getExpandoData(ownerDocument),
|
|
namespaces = ownerDocument.namespaces,
|
|
ownerWindow = ownerDocument.parentWindow;
|
|
|
|
if (!supportsShivableSheets || ownerDocument.printShived) {
|
|
return ownerDocument;
|
|
}
|
|
if (typeof namespaces[shivNamespace] == 'undefined') {
|
|
namespaces.add(shivNamespace);
|
|
}
|
|
|
|
function removeSheet() {
|
|
clearTimeout(data._removeSheetTimer);
|
|
if (shivedSheet) {
|
|
shivedSheet.removeNode(true);
|
|
}
|
|
shivedSheet= null;
|
|
}
|
|
|
|
ownerWindow.attachEvent('onbeforeprint', function() {
|
|
|
|
removeSheet();
|
|
|
|
var imports,
|
|
length,
|
|
sheet,
|
|
collection = ownerDocument.styleSheets,
|
|
cssText = [],
|
|
index = collection.length,
|
|
sheets = Array(index);
|
|
|
|
// convert styleSheets collection to an array
|
|
while (index--) {
|
|
sheets[index] = collection[index];
|
|
}
|
|
// concat all style sheet CSS text
|
|
while ((sheet = sheets.pop())) {
|
|
// IE does not enforce a same origin policy for external style sheets...
|
|
// but has trouble with some dynamically created stylesheets
|
|
if (!sheet.disabled && reMedia.test(sheet.media)) {
|
|
|
|
try {
|
|
imports = sheet.imports;
|
|
length = imports.length;
|
|
} catch(er){
|
|
length = 0;
|
|
}
|
|
|
|
for (index = 0; index < length; index++) {
|
|
sheets.push(imports[index]);
|
|
}
|
|
|
|
try {
|
|
cssText.push(sheet.cssText);
|
|
} catch(er){}
|
|
}
|
|
}
|
|
|
|
// wrap all HTML5 elements with printable elements and add the shived style sheet
|
|
cssText = shivCssText(cssText.reverse().join(''));
|
|
wrappers = addWrappers(ownerDocument);
|
|
shivedSheet = addStyleSheet(ownerDocument, cssText);
|
|
|
|
});
|
|
|
|
ownerWindow.attachEvent('onafterprint', function() {
|
|
// remove wrappers, leaving the original elements, and remove the shived style sheet
|
|
removeWrappers(wrappers);
|
|
clearTimeout(data._removeSheetTimer);
|
|
data._removeSheetTimer = setTimeout(removeSheet, 500);
|
|
});
|
|
|
|
ownerDocument.printShived = true;
|
|
return ownerDocument;
|
|
}
|
|
|
|
/*--------------------------------------------------------------------------*/
|
|
|
|
// expose API
|
|
html5.type += ' print';
|
|
html5.shivPrint = shivPrint;
|
|
|
|
// shiv for print
|
|
shivPrint(document);
|
|
|
|
}(this, document));
|