88e99ec1e7
Change-Id: Ia994ae1b17a0ee3cf0e997f7ef3501228310c29e
188 lines
5.6 KiB
JavaScript
188 lines
5.6 KiB
JavaScript
$(document).ready(function() {
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// prep nav expandos
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var pagePath = document.location.pathname;
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if (pagePath.indexOf(SITE_ROOT) == 0) {
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pagePath = pagePath.substr(SITE_ROOT.length);
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if (pagePath == '' || pagePath.charAt(pagePath.length - 1) == '/') {
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pagePath += 'index.html';
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}
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}
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if (SITE_ROOT.match(/\.\.\//) || SITE_ROOT == '') {
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// If running locally, SITE_ROOT will be a relative path, so account for that by
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// finding the relative URL to this page. This will allow us to find links on the page
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// leading back to this page.
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var pathParts = pagePath.split('/');
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var relativePagePathParts = [];
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var upDirs = (SITE_ROOT.match(/(\.\.\/)+/) || [''])[0].length / 3;
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for (var i = 0; i < upDirs; i++) {
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relativePagePathParts.push('..');
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}
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for (var i = 0; i < upDirs; i++) {
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relativePagePathParts.push(pathParts[pathParts.length - (upDirs - i) - 1]);
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}
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relativePagePathParts.push(pathParts[pathParts.length - 1]);
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pagePath = relativePagePathParts.join('/');
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} else {
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// Otherwise the page path should be an absolute URL.
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pagePath = SITE_ROOT + pagePath;
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}
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// select current page in sidenav and set up prev/next links if they exist
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var $selNavLink = $('.nav-y').find('a[href="' + pagePath + '"]');
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if ($selNavLink.length) {
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$selListItem = $selNavLink.closest('li');
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$selListItem.addClass('selected');
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$selListItem.closest('li>ul').addClass('expanded');
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// set up prev links
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var $prevLink = [];
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var $prevListItem = $selListItem.prev('li');
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if ($prevListItem.length) {
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if ($prevListItem.hasClass('nav-section')) {
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// jump to last topic of previous section
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$prevLink = $prevListItem.find('a:last');
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} else {
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// jump to previous topic in this section
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$prevLink = $prevListItem.find('a:eq(0)');
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}
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} else {
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// jump to this section's index page (if it exists)
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$prevLink = $selListItem.parents('li').find('a');
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}
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if ($prevLink.length) {
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var prevHref = $prevLink.attr('href');
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if (prevHref == SITE_ROOT + 'index.html') {
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// Don't show Previous when it leads to the homepage
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$('.prev-page-link').hide();
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} else {
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$('.prev-page-link').attr('href', prevHref).show();
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}
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} else {
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$('.prev-page-link').hide();
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}
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// set up next links
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var $nextLink = [];
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if ($selListItem.hasClass('nav-section')) {
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// we're on an index page, jump to the first topic
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$nextLink = $selListItem.find('ul').find('a:eq(0)')
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} else {
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// jump to the next topic in this section (if it exists)
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$nextLink = $selListItem.next('li').find('a:eq(0)');
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if (!$nextLink.length) {
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// no more topics in this section, jump to the first topic in the next section
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$nextLink = $selListItem.parents('li').next('li.nav-section').find('a:eq(0)');
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}
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}
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if ($nextLink.length) {
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$('.next-page-link').attr('href', $nextLink.attr('href')).show();
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} else {
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$('.next-page-link').hide();
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}
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}
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// Set up expand/collapse behavior
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$('.nav-y li').has('ul').click(function() {
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if ($(this).hasClass('expanded')) {
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return;
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}
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// hide other
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var $old = $('.nav-y li.expanded');
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if ($old.length) {
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var $oldUl = $old.children('ul');
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$oldUl.css('height', $oldUl.height() + 'px');
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window.setTimeout(function() {
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$oldUl
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.addClass('animate-height')
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.css('height', '');
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}, 0);
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$old.removeClass('expanded');
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}
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// show me
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$(this).addClass('expanded');
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var $ul = $(this).children('ul');
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var expandedHeight = $ul.height();
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$ul
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.removeClass('animate-height')
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.css('height', 0);
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window.setTimeout(function() {
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$ul
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.addClass('animate-height')
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.css('height', expandedHeight + 'px');
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}, 0);
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});
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// Stop expand/collapse behavior when clicking on nav section links (since we're navigating away
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// from the page)
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$('.nav-y li').has('ul').find('a:eq(0)').click(function(evt) {
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window.location.href = $(this).attr('href');
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return false;
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});
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// Set up play-on-hover <video> tags.
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$('video.play-on-hover').bind('click', function(){
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$(this).get(0).load(); // in case the video isn't seekable
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$(this).get(0).play();
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});
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// Set up tooltips
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var TOOLTIP_MARGIN = 10;
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$('acronym').each(function() {
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var $target = $(this);
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var $tooltip = $('<div>')
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.addClass('tooltip-box')
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.text($target.attr('title'))
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.hide()
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.appendTo('body');
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$target.removeAttr('title');
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$target.hover(function() {
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// in
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var targetRect = $target.offset();
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targetRect.width = $target.width();
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targetRect.height = $target.height();
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$tooltip.css({
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left: targetRect.left,
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top: targetRect.top + targetRect.height + TOOLTIP_MARGIN
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});
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$tooltip.addClass('below');
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$tooltip.show();
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}, function() {
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// out
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$tooltip.hide();
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});
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});
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// Set up <h2> deeplinks
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$('h2').click(function() {
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var id = $(this).attr('id');
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if (id) {
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document.location.hash = id;
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}
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});
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// Set up fixed navbar
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var navBarIsFixed = false;
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$(window).scroll(function() {
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var scrollTop = $(window).scrollTop();
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var navBarShouldBeFixed = (scrollTop > (100 - 40));
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if (navBarIsFixed != navBarShouldBeFixed) {
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if (navBarShouldBeFixed) {
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$('#nav')
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.addClass('fixed')
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.prependTo('#page-container');
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} else {
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$('#nav')
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.removeClass('fixed')
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.prependTo('#nav-container');
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}
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navBarIsFixed = navBarShouldBeFixed;
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}
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});
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}); |