497 lines
16 KiB
JavaScript
497 lines
16 KiB
JavaScript
// Scrollbar Width function
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function getScrollBarWidth() {
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var inner = document.createElement('p');
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inner.style.width = "100%";
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inner.style.height = "200px";
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var outer = document.createElement('div');
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outer.style.position = "absolute";
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outer.style.top = "0px";
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outer.style.left = "0px";
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outer.style.visibility = "hidden";
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outer.style.width = "200px";
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outer.style.height = "150px";
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outer.style.overflow = "hidden";
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outer.appendChild(inner);
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document.body.appendChild(outer);
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var w1 = inner.offsetWidth;
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outer.style.overflow = 'scroll';
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var w2 = inner.offsetWidth;
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if (w1 == w2) w2 = outer.clientWidth;
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document.body.removeChild(outer);
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return (w1 - w2);
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};
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function setMenuHeight() {
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$('#sidebar .highlightable').height($('#sidebar').innerHeight() - $('#header-wrapper').height() - 40);
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$('#sidebar .highlightable').perfectScrollbar('update');
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}
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function fallbackMessage(action) {
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var actionMsg = '';
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var actionKey = (action === 'cut' ? 'X' : 'C');
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if (/iPhone|iPad/i.test(navigator.userAgent)) {
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actionMsg = 'No support :(';
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}
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else if (/Mac/i.test(navigator.userAgent)) {
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actionMsg = 'Press ⌘-' + actionKey + ' to ' + action;
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}
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else {
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actionMsg = 'Press Ctrl-' + actionKey + ' to ' + action;
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}
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return actionMsg;
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}
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function switchTab(tabGroup, tabId) {
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allTabItems = jQuery("[data-tab-group='"+tabGroup+"']");
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targetTabItems = jQuery("[data-tab-group='"+tabGroup+"'][data-tab-item='"+tabId+"']");
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// if event is undefined then switchTab was called from restoreTabSelection
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// so it's not a button event and we don't need to safe the selction or
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// prevent page jump
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var isButtonEvent = event != undefined;
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if(isButtonEvent){
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// save button position relative to viewport
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var yposButton = event.target.getBoundingClientRect().top;
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}
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allTabItems.removeClass("active");
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targetTabItems.addClass("active");
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if(isButtonEvent){
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// reset screen to the same position relative to clicked button to prevent page jump
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var yposButtonDiff = event.target.getBoundingClientRect().top - yposButton;
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window.scrollTo(window.scrollX, window.scrollY+yposButtonDiff);
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// Store the selection to make it persistent
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if(window.localStorage){
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var selectionsJSON = window.localStorage.getItem("tabSelections");
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if(selectionsJSON){
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var tabSelections = JSON.parse(selectionsJSON);
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}else{
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var tabSelections = {};
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}
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tabSelections[tabGroup] = tabId;
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window.localStorage.setItem("tabSelections", JSON.stringify(tabSelections));
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}
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}
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}
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function restoreTabSelections() {
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if(window.localStorage){
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var selectionsJSON = window.localStorage.getItem("tabSelections");
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if(selectionsJSON){
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var tabSelections = JSON.parse(selectionsJSON);
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}else{
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var tabSelections = {};
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}
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Object.keys(tabSelections).forEach(function(tabGroup) {
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var tabItem = tabSelections[tabGroup];
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switchTab(tabGroup, tabItem);
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});
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}
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}
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// for the window resize
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$(window).resize(function() {
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setMenuHeight();
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});
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// debouncing function from John Hann
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// http://unscriptable.com/index.php/2009/03/20/debouncing-javascript-methods/
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(function($, sr) {
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var debounce = function(func, threshold, execAsap) {
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var timeout;
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return function debounced() {
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var obj = this, args = arguments;
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function delayed() {
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if (!execAsap)
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func.apply(obj, args);
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timeout = null;
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};
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if (timeout)
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clearTimeout(timeout);
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else if (execAsap)
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func.apply(obj, args);
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timeout = setTimeout(delayed, threshold || 100);
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};
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}
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// smartresize
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jQuery.fn[sr] = function(fn) { return fn ? this.bind('resize', debounce(fn)) : this.trigger(sr); };
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})(jQuery, 'smartresize');
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jQuery(document).ready(function() {
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restoreTabSelections();
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jQuery('#sidebar .category-icon').on('click', function() {
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$( this ).toggleClass("fa-angle-down fa-angle-right") ;
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$( this ).parent().parent().children('ul').toggle() ;
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return false;
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});
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var sidebarStatus = searchStatus = 'open';
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$('#sidebar .highlightable').perfectScrollbar();
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setMenuHeight();
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jQuery('#overlay').on('click', function() {
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jQuery(document.body).toggleClass('sidebar-hidden');
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sidebarStatus = (jQuery(document.body).hasClass('sidebar-hidden') ? 'closed' : 'open');
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return false;
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});
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jQuery('[data-sidebar-toggle]').on('click', function() {
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jQuery(document.body).toggleClass('sidebar-hidden');
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sidebarStatus = (jQuery(document.body).hasClass('sidebar-hidden') ? 'closed' : 'open');
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return false;
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});
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jQuery('[data-clear-history-toggle]').on('click', function() {
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sessionStorage.clear();
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location.reload();
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return false;
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});
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jQuery('[data-search-toggle]').on('click', function() {
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if (sidebarStatus == 'closed') {
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jQuery('[data-sidebar-toggle]').trigger('click');
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jQuery(document.body).removeClass('searchbox-hidden');
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searchStatus = 'open';
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return false;
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}
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jQuery(document.body).toggleClass('searchbox-hidden');
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searchStatus = (jQuery(document.body).hasClass('searchbox-hidden') ? 'closed' : 'open');
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return false;
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});
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var ajax;
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jQuery('[data-search-input]').on('input', function() {
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var input = jQuery(this),
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value = input.val(),
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items = jQuery('[data-nav-id]');
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items.removeClass('search-match');
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if (!value.length) {
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$('ul.topics').removeClass('searched');
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items.css('display', 'block');
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sessionStorage.removeItem('search-value');
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$(".highlightable").unhighlight({ element: 'mark' })
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return;
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}
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sessionStorage.setItem('search-value', value);
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$(".highlightable").unhighlight({ element: 'mark' }).highlight(value, { element: 'mark' });
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if (ajax && ajax.abort) ajax.abort();
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jQuery('[data-search-clear]').on('click', function() {
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jQuery('[data-search-input]').val('').trigger('input');
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sessionStorage.removeItem('search-input');
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$(".highlightable").unhighlight({ element: 'mark' })
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});
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});
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$.expr[":"].contains = $.expr.createPseudo(function(arg) {
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return function( elem ) {
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return $(elem).text().toUpperCase().indexOf(arg.toUpperCase()) >= 0;
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};
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});
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if (sessionStorage.getItem('search-value')) {
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var searchValue = sessionStorage.getItem('search-value')
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$(document.body).removeClass('searchbox-hidden');
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$('[data-search-input]').val(searchValue);
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$('[data-search-input]').trigger('input');
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var searchedElem = $('#body-inner').find(':contains(' + searchValue + ')').get(0);
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if (searchedElem) {
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searchedElem.scrollIntoView(true);
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var scrolledY = window.scrollY;
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if(scrolledY){
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window.scroll(0, scrolledY - 125);
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}
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}
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}
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// clipboard
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var clipInit = false;
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$('code').each(function() {
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var code = $(this),
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text = code.text();
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if (text.length > 5) {
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if (!clipInit) {
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var text, clip = new ClipboardJS('.copy-to-clipboard', {
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text: function(trigger) {
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text = $(trigger).prev('code').text();
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return text.replace(/^\$\s/gm, '');
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}
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});
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var inPre;
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clip.on('success', function(e) {
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e.clearSelection();
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inPre = $(e.trigger).parent().prop('tagName') == 'PRE';
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$(e.trigger).attr('aria-label', 'Copied to clipboard!').addClass('tooltipped tooltipped-' + (inPre ? 'w' : 's'));
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});
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clip.on('error', function(e) {
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inPre = $(e.trigger).parent().prop('tagName') == 'PRE';
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$(e.trigger).attr('aria-label', fallbackMessage(e.action)).addClass('tooltipped tooltipped-' + (inPre ? 'w' : 's'));
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$(document).one('copy', function(){
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$(e.trigger).attr('aria-label', 'Copied to clipboard!').addClass('tooltipped tooltipped-' + (inPre ? 'w' : 's'));
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});
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});
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clipInit = true;
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}
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code.after('<span class="copy-to-clipboard" title="Copy to clipboard" />');
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code.next('.copy-to-clipboard').on('mouseleave', function() {
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$(this).attr('aria-label', null).removeClass('tooltipped tooltipped-s tooltipped-w');
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});
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}
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});
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// allow keyboard control for prev/next links
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jQuery(function() {
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jQuery('.nav-prev').click(function(){
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location.href = jQuery(this).attr('href');
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});
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jQuery('.nav-next').click(function() {
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location.href = jQuery(this).attr('href');
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});
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});
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jQuery('input, textarea').keydown(function (e) {
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// left and right arrow keys
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if (e.which == '37' || e.which == '39') {
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e.stopPropagation();
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}
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});
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jQuery(document).keydown(function(e) {
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// prev links - left arrow key
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if(e.which == '37') {
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jQuery('.nav.nav-prev').click();
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}
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// next links - right arrow key
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if(e.which == '39') {
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jQuery('.nav.nav-next').click();
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}
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});
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$('#top-bar a:not(:has(img)):not(.btn)').addClass('highlight');
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$('#body-inner a:not(:has(img)):not(.btn):not(a[rel="footnote"])').addClass('highlight');
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var touchsupport = ('ontouchstart' in window) || (navigator.maxTouchPoints > 0) || (navigator.msMaxTouchPoints > 0)
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if (!touchsupport){ // browser doesn't support touch
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$('#toc-menu').hover(function() {
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$('.progress').stop(true, false, true).fadeToggle(100);
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});
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$('.progress').hover(function() {
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$('.progress').stop(true, false, true).fadeToggle(100);
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});
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}
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if (touchsupport){ // browser does support touch
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$('#toc-menu').click(function() {
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$('.progress').stop(true, false, true).fadeToggle(100);
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});
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$('.progress').click(function() {
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$('.progress').stop(true, false, true).fadeToggle(100);
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});
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}
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/**
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* Fix anchor scrolling that hides behind top nav bar
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* Courtesy of https://stackoverflow.com/a/13067009/28106
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*
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* We could use pure css for this if only heading anchors were
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* involved, but this works for any anchor, including footnotes
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**/
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(function (document, history, location) {
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var HISTORY_SUPPORT = !!(history && history.pushState);
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var anchorScrolls = {
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ANCHOR_REGEX: /^#[^ ]+$/,
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OFFSET_HEIGHT_PX: 50,
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/**
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* Establish events, and fix initial scroll position if a hash is provided.
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*/
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init: function () {
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this.scrollToCurrent();
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$(window).on('hashchange', $.proxy(this, 'scrollToCurrent'));
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$('body').on('click', 'a', $.proxy(this, 'delegateAnchors'));
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},
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/**
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* Return the offset amount to deduct from the normal scroll position.
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* Modify as appropriate to allow for dynamic calculations
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*/
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getFixedOffset: function () {
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return this.OFFSET_HEIGHT_PX;
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},
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/**
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* If the provided href is an anchor which resolves to an element on the
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* page, scroll to it.
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* @param {String} href
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* @return {Boolean} - Was the href an anchor.
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*/
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scrollIfAnchor: function (href, pushToHistory) {
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var match, anchorOffset;
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if (!this.ANCHOR_REGEX.test(href)) {
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return false;
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}
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match = document.getElementById(href.slice(1));
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if (match) {
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anchorOffset = $(match).offset().top - this.getFixedOffset();
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$('html, body').animate({ scrollTop: anchorOffset });
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// Add the state to history as-per normal anchor links
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if (HISTORY_SUPPORT && pushToHistory) {
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history.pushState({}, document.title, location.pathname + href);
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}
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}
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return !!match;
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},
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/**
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* Attempt to scroll to the current location's hash.
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*/
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scrollToCurrent: function (e) {
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if (this.scrollIfAnchor(window.location.hash) && e) {
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e.preventDefault();
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}
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},
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/**
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* If the click event's target was an anchor, fix the scroll position.
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*/
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delegateAnchors: function (e) {
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var elem = e.target;
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if (this.scrollIfAnchor(elem.getAttribute('href'), true)) {
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e.preventDefault();
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}
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}
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};
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$(document).ready($.proxy(anchorScrolls, 'init'));
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})(window.document, window.history, window.location);
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});
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jQuery(window).on('load', function() {
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// store this page in session
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sessionStorage.setItem(jQuery('body').data('url'), 1);
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// loop through the sessionStorage and see if something should be marked as visited
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for (var url in sessionStorage) {
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if (sessionStorage.getItem(url) == 1) jQuery('[data-nav-id="' + url + '"]').addClass('visited');
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}
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$(".highlightable").highlight(sessionStorage.getItem('search-value'), { element: 'mark' });
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});
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$(function() {
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$('a[rel="lightbox"]').featherlight({
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root: 'section#body'
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});
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});
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jQuery.extend({
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highlight: function(node, re, nodeName, className) {
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if (node.nodeType === 3) {
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var match = node.data.match(re);
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if (match) {
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var highlight = document.createElement(nodeName || 'span');
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highlight.className = className || 'highlight';
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var wordNode = node.splitText(match.index);
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wordNode.splitText(match[0].length);
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var wordClone = wordNode.cloneNode(true);
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highlight.appendChild(wordClone);
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wordNode.parentNode.replaceChild(highlight, wordNode);
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return 1; //skip added node in parent
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}
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} else if ((node.nodeType === 1 && node.childNodes) && // only element nodes that have children
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!/(script|style)/i.test(node.tagName) && // ignore script and style nodes
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!(node.tagName === nodeName.toUpperCase() && node.className === className)) { // skip if already highlighted
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for (var i = 0; i < node.childNodes.length; i++) {
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i += jQuery.highlight(node.childNodes[i], re, nodeName, className);
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}
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}
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return 0;
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}
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});
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jQuery.fn.unhighlight = function(options) {
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var settings = {
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className: 'highlight',
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element: 'span'
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};
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jQuery.extend(settings, options);
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return this.find(settings.element + "." + settings.className).each(function() {
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var parent = this.parentNode;
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parent.replaceChild(this.firstChild, this);
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parent.normalize();
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}).end();
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};
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jQuery.fn.highlight = function(words, options) {
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var settings = {
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className: 'highlight',
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element: 'span',
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caseSensitive: false,
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wordsOnly: false
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};
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jQuery.extend(settings, options);
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if (!words) { return; }
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if (words.constructor === String) {
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words = [words];
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}
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words = jQuery.grep(words, function(word, i) {
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return word != '';
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});
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words = jQuery.map(words, function(word, i) {
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return word.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
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});
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if (words.length == 0) { return this; }
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;
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var flag = settings.caseSensitive ? "" : "i";
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var pattern = "(" + words.join("|") + ")";
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if (settings.wordsOnly) {
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pattern = "\\b" + pattern + "\\b";
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}
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var re = new RegExp(pattern, flag);
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return this.each(function() {
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jQuery.highlight(this, re, settings.element, settings.className);
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});
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};
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