521 lines
16 KiB
JavaScript
521 lines
16 KiB
JavaScript
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/**
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* @preserve HTML5 Shiv 3.7.2 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
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*/
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;(function(window, document) {
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/*jshint evil:true */
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/** version */
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var version = '3.7.2';
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/** Preset options */
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var options = window.html5 || {};
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/** Used to skip problem elements */
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var reSkip = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;
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/** Not all elements can be cloned in IE **/
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var saveClones = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i;
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/** Detect whether the browser supports default html5 styles */
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var supportsHtml5Styles;
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/** Name of the expando, to work with multiple documents or to re-shiv one document */
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var expando = '_html5shiv';
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/** The id for the the documents expando */
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var expanID = 0;
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/** Cached data for each document */
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var expandoData = {};
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/** Detect whether the browser supports unknown elements */
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var supportsUnknownElements;
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(function() {
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try {
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var a = document.createElement('a');
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a.innerHTML = '<xyz></xyz>';
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//if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
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supportsHtml5Styles = ('hidden' in a);
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supportsUnknownElements = a.childNodes.length == 1 || (function() {
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// assign a false positive if unable to shiv
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(document.createElement)('a');
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var frag = document.createDocumentFragment();
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return (
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typeof frag.cloneNode == 'undefined' ||
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typeof frag.createDocumentFragment == 'undefined' ||
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typeof frag.createElement == 'undefined'
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);
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}());
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} catch(e) {
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// assign a false positive if detection fails => unable to shiv
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supportsHtml5Styles = true;
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supportsUnknownElements = true;
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}
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}());
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/*--------------------------------------------------------------------------*/
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/**
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* Creates a style sheet with the given CSS text and adds it to the document.
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* @private
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* @param {Document} ownerDocument The document.
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* @param {String} cssText The CSS text.
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* @returns {StyleSheet} The style element.
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*/
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function addStyleSheet(ownerDocument, cssText) {
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var p = ownerDocument.createElement('p'),
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parent = ownerDocument.getElementsByTagName('head')[0] || ownerDocument.documentElement;
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p.innerHTML = 'x<style>' + cssText + '</style>';
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return parent.insertBefore(p.lastChild, parent.firstChild);
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}
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/**
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* Returns the value of `html5.elements` as an array.
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* @private
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* @returns {Array} An array of shived element node names.
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*/
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function getElements() {
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var elements = html5.elements;
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return typeof elements == 'string' ? elements.split(' ') : elements;
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}
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/**
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* Extends the built-in list of html5 elements
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* @memberOf html5
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* @param {String|Array} newElements whitespace separated list or array of new element names to shiv
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* @param {Document} ownerDocument The context document.
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*/
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function addElements(newElements, ownerDocument) {
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var elements = html5.elements;
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if(typeof elements != 'string'){
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elements = elements.join(' ');
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}
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if(typeof newElements != 'string'){
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newElements = newElements.join(' ');
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}
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html5.elements = elements +' '+ newElements;
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shivDocument(ownerDocument);
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}
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/**
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* Returns the data associated to the given document
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* @private
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* @param {Document} ownerDocument The document.
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* @returns {Object} An object of data.
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*/
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function getExpandoData(ownerDocument) {
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var data = expandoData[ownerDocument[expando]];
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if (!data) {
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data = {};
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expanID++;
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ownerDocument[expando] = expanID;
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expandoData[expanID] = data;
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}
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return data;
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}
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/**
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* returns a shived element for the given nodeName and document
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* @memberOf html5
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* @param {String} nodeName name of the element
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* @param {Document} ownerDocument The context document.
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* @returns {Object} The shived element.
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*/
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function createElement(nodeName, ownerDocument, data){
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if (!ownerDocument) {
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ownerDocument = document;
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}
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if(supportsUnknownElements){
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return ownerDocument.createElement(nodeName);
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}
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if (!data) {
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data = getExpandoData(ownerDocument);
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}
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var node;
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if (data.cache[nodeName]) {
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node = data.cache[nodeName].cloneNode();
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} else if (saveClones.test(nodeName)) {
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node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
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} else {
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node = data.createElem(nodeName);
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}
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// Avoid adding some elements to fragments in IE < 9 because
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// * Attributes like `name` or `type` cannot be set/changed once an element
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// is inserted into a document/fragment
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// * Link elements with `src` attributes that are inaccessible, as with
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// a 403 response, will cause the tab/window to crash
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// * Script elements appended to fragments will execute when their `src`
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// or `text` property is set
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return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn ? data.frag.appendChild(node) : node;
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}
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/**
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* returns a shived DocumentFragment for the given document
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* @memberOf html5
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* @param {Document} ownerDocument The context document.
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* @returns {Object} The shived DocumentFragment.
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*/
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function createDocumentFragment(ownerDocument, data){
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if (!ownerDocument) {
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ownerDocument = document;
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}
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if(supportsUnknownElements){
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return ownerDocument.createDocumentFragment();
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}
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data = data || getExpandoData(ownerDocument);
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var clone = data.frag.cloneNode(),
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i = 0,
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elems = getElements(),
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l = elems.length;
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for(;i<l;i++){
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clone.createElement(elems[i]);
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}
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return clone;
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}
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/**
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* Shivs the `createElement` and `createDocumentFragment` methods of the document.
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* @private
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* @param {Document|DocumentFragment} ownerDocument The document.
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* @param {Object} data of the document.
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*/
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function shivMethods(ownerDocument, data) {
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if (!data.cache) {
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data.cache = {};
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data.createElem = ownerDocument.createElement;
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data.createFrag = ownerDocument.createDocumentFragment;
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data.frag = data.createFrag();
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}
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ownerDocument.createElement = function(nodeName) {
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//abort shiv
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if (!html5.shivMethods) {
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return data.createElem(nodeName);
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}
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return createElement(nodeName, ownerDocument, data);
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};
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ownerDocument.createDocumentFragment = Function('h,f', 'return function(){' +
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'var n=f.cloneNode(),c=n.createElement;' +
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'h.shivMethods&&(' +
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// unroll the `createElement` calls
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getElements().join().replace(/[\w\-:]+/g, function(nodeName) {
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data.createElem(nodeName);
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data.frag.createElement(nodeName);
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return 'c("' + nodeName + '")';
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}) +
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');return n}'
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)(html5, data.frag);
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}
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/*--------------------------------------------------------------------------*/
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/**
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* Shivs the given document.
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* @memberOf html5
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* @param {Document} ownerDocument The document to shiv.
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* @returns {Document} The shived document.
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*/
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function shivDocument(ownerDocument) {
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if (!ownerDocument) {
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ownerDocument = document;
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}
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var data = getExpandoData(ownerDocument);
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if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
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data.hasCSS = !!addStyleSheet(ownerDocument,
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// corrects block display not defined in IE6/7/8/9
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'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}' +
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// adds styling not present in IE6/7/8/9
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'mark{background:#FF0;color:#000}' +
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// hides non-rendered elements
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'template{display:none}'
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);
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}
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if (!supportsUnknownElements) {
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shivMethods(ownerDocument, data);
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}
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return ownerDocument;
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}
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/*--------------------------------------------------------------------------*/
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/**
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* The `html5` object is exposed so that more elements can be shived and
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* existing shiving can be detected on iframes.
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* @type Object
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* @example
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*
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* // options can be changed before the script is included
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* html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
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*/
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var html5 = {
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/**
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* An array or space separated string of node names of the elements to shiv.
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* @memberOf html5
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* @type Array|String
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*/
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'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',
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/**
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* current version of html5shiv
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*/
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'version': version,
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/**
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* A flag to indicate that the HTML5 style sheet should be inserted.
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* @memberOf html5
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* @type Boolean
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*/
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'shivCSS': (options.shivCSS !== false),
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/**
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* Is equal to true if a browser supports creating unknown/HTML5 elements
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* @memberOf html5
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* @type boolean
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*/
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'supportsUnknownElements': supportsUnknownElements,
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/**
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* A flag to indicate that the document's `createElement` and `createDocumentFragment`
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* methods should be overwritten.
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* @memberOf html5
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* @type Boolean
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*/
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'shivMethods': (options.shivMethods !== false),
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/**
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* A string to describe the type of `html5` object ("default" or "default print").
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* @memberOf html5
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* @type String
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*/
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'type': 'default',
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// shivs the document according to the specified `html5` object options
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'shivDocument': shivDocument,
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//creates a shived element
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createElement: createElement,
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//creates a shived documentFragment
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createDocumentFragment: createDocumentFragment,
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//extends list of elements
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addElements: addElements
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};
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/*--------------------------------------------------------------------------*/
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// expose html5
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window.html5 = html5;
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// shiv the document
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shivDocument(document);
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/*------------------------------- Print Shiv -------------------------------*/
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/** Used to filter media types */
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var reMedia = /^$|\b(?:all|print)\b/;
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/** Used to namespace printable elements */
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var shivNamespace = 'html5shiv';
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/** Detect whether the browser supports shivable style sheets */
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var supportsShivableSheets = !supportsUnknownElements && (function() {
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// assign a false negative if unable to shiv
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var docEl = document.documentElement;
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return !(
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typeof document.namespaces == 'undefined' ||
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typeof document.parentWindow == 'undefined' ||
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typeof docEl.applyElement == 'undefined' ||
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typeof docEl.removeNode == 'undefined' ||
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typeof window.attachEvent == 'undefined'
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);
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}());
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/*--------------------------------------------------------------------------*/
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/**
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* Wraps all HTML5 elements in the given document with printable elements.
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* (eg. the "header" element is wrapped with the "html5shiv:header" element)
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* @private
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* @param {Document} ownerDocument The document.
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* @returns {Array} An array wrappers added.
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*/
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function addWrappers(ownerDocument) {
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var node,
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nodes = ownerDocument.getElementsByTagName('*'),
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index = nodes.length,
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reElements = RegExp('^(?:' + getElements().join('|') + ')$', 'i'),
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result = [];
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while (index--) {
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node = nodes[index];
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if (reElements.test(node.nodeName)) {
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result.push(node.applyElement(createWrapper(node)));
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}
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}
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return result;
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}
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/**
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* Creates a printable wrapper for the given element.
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* @private
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* @param {Element} element The element.
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* @returns {Element} The wrapper.
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*/
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function createWrapper(element) {
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var node,
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nodes = element.attributes,
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index = nodes.length,
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wrapper = element.ownerDocument.createElement(shivNamespace + ':' + element.nodeName);
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// copy element attributes to the wrapper
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while (index--) {
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node = nodes[index];
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node.specified && wrapper.setAttribute(node.nodeName, node.nodeValue);
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}
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// copy element styles to the wrapper
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wrapper.style.cssText = element.style.cssText;
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return wrapper;
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}
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/**
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* Shivs the given CSS text.
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* (eg. header{} becomes html5shiv\:header{})
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|
|
* @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));
|