wiki-grav/themes/learn2/js/learn.js

346 lines
11 KiB
JavaScript
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function getScrollBarWidth() {
var inner = document.createElement('p');
inner.style.width = "100%";
inner.style.height = "200px";
var outer = document.createElement('div');
outer.style.position = "absolute";
outer.style.top = "0px";
outer.style.left = "0px";
outer.style.visibility = "hidden";
outer.style.width = "200px";
outer.style.height = "150px";
outer.style.overflow = "hidden";
outer.appendChild(inner);
document.body.appendChild(outer);
var w1 = inner.offsetWidth;
outer.style.overflow = 'scroll';
var w2 = inner.offsetWidth;
if (w1 == w2) w2 = outer.clientWidth;
document.body.removeChild(outer);
return (w1 - w2);
};
function setMenuHeight() {
$('#sidebar .highlightable').height($('#sidebar').innerHeight() - $('#header-wrapper').height() - 40);
}
function fallbackMessage(action) {
var actionMsg = '';
var actionKey = (action === 'cut' ? 'X' : 'C');
if (/iPhone|iPad/i.test(navigator.userAgent)) {
actionMsg = 'No support :(';
}
else if (/Mac/i.test(navigator.userAgent)) {
actionMsg = 'Press ⌘-' + actionKey + ' to ' + action;
}
else {
actionMsg = 'Press Ctrl-' + actionKey + ' to ' + action;
}
return actionMsg;
}
// for the window resize
$(window).resize(function() {
setMenuHeight();
});
// debouncing function from John Hann
// http://unscriptable.com/index.php/2009/03/20/debouncing-javascript-methods/
(function($, sr) {
var debounce = function(func, threshold, execAsap) {
var timeout;
return function debounced() {
var obj = this, args = arguments;
function delayed() {
if (!execAsap)
func.apply(obj, args);
timeout = null;
};
if (timeout)
clearTimeout(timeout);
else if (execAsap)
func.apply(obj, args);
timeout = setTimeout(delayed, threshold || 100);
};
}
// smartresize
jQuery.fn[sr] = function(fn) { return fn ? this.bind('resize', debounce(fn)) : this.trigger(sr); };
})(jQuery, 'smartresize');
jQuery(document).ready(function() {
var sidebarStatus = searchStatus = 'open';
jQuery('.scrollbar-inner').scrollbar();
// set the menu height
setMenuHeight();
jQuery('#overlay').on('click', function() {
jQuery(document.body).toggleClass('sidebar-hidden');
sidebarStatus = (jQuery(document.body).hasClass('sidebar-hidden') ? 'closed' : 'open');
return false;
});
//jQuery('.scrollbar-inner').scrollbar();
jQuery('[data-sidebar-toggle]').on('click', function() {
jQuery(document.body).toggleClass('sidebar-hidden');
sidebarStatus = (jQuery(document.body).hasClass('sidebar-hidden') ? 'closed' : 'open');
return false;
});
jQuery('[data-clear-history-toggle]').on('click', function() {
sessionStorage.clear();
location.reload();
return false;
});
jQuery('[data-search-toggle]').on('click', function() {
if (sidebarStatus == 'closed') {
jQuery('[data-sidebar-toggle]').trigger('click');
jQuery(document.body).removeClass('searchbox-hidden');
searchStatus = 'open';
return false;
}
jQuery(document.body).toggleClass('searchbox-hidden');
searchStatus = (jQuery(document.body).hasClass('searchbox-hidden') ? 'closed' : 'open');
return false;
});
var ajax;
jQuery('[data-search-input]').on('input', function() {
var input = jQuery(this),
value = input.val(),
items = jQuery('[data-nav-id]');
items.removeClass('search-match');
if (!value.length) {
$('ul.topics').removeClass('searched');
items.css('display', 'block');
sessionStorage.removeItem('search-value');
$(".highlightable").unhighlight({ element: 'mark' })
return;
}
sessionStorage.setItem('search-value', value);
$(".highlightable").unhighlight({ element: 'mark' }).highlight(value, { element: 'mark' });
if (ajax && ajax.abort) ajax.abort();
ajax = jQuery.ajax({
url: input.data('search-input') + ':' + value
}).done(function(data) {
if (data && data.results && data.results.length) {
items.css('display', 'none');
$('ul.topics').addClass('searched');
data.results.forEach(function(navitem) {
jQuery('[data-nav-id="' + navitem + '"]').css('display', 'block').addClass('search-match');
jQuery('[data-nav-id="' + navitem + '"]').parents('li').css('display', 'block');
});
}
;
});
jQuery('[data-search-clear]').on('click', function() {
jQuery('[data-search-input]').val('').trigger('input');
sessionStorage.removeItem('search-input');
$(".highlightable").unhighlight({ element: 'mark' })
});
});
if (sessionStorage.getItem('search-value')) {
jQuery(document.body).removeClass('searchbox-hidden');
jQuery('[data-search-input]').val(sessionStorage.getItem('search-value'));
jQuery('[data-search-input]').trigger('input');
}
// clipboard
var clipInit = false;
$('code').each(function() {
var code = $(this),
text = code.text();
if (text.length > 5) {
if (!clipInit) {
var text, clip = new Clipboard('.copy-to-clipboard', {
text: function(trigger) {
text = $(trigger).prev('code').text();
// NOTE custom stuff to strip # or $ from the beginning of my inline command blocks
return text.replace(/^[\$\s\#\$]{1,4}/gm, '');
// original code
return text.replace(/^\$\s/gm, '');
}
});
var inPre;
clip.on('success', function(e) {
e.clearSelection();
inPre = $(e.trigger).parent().prop('tagName') == 'PRE';
$(e.trigger).attr('aria-label', 'Copied to clipboard!').addClass('tooltipped tooltipped-' + (inPre ? 'w' : 's'));
});
clip.on('error', function(e) {
inPre = $(e.trigger).parent().prop('tagName') == 'PRE';
$(e.trigger).attr('aria-label', fallbackMessage(e.action)).addClass('tooltipped tooltipped-' + (inPre ? 'w' : 's'));
$(document).one('copy', function(){
$(e.trigger).attr('aria-label', 'Copied to clipboard!').addClass('tooltipped tooltipped-' + (inPre ? 'w' : 's'));
});
});
clipInit = true;
}
code.after('<span class="copy-to-clipboard" title="Copy to clipboard" />');
code.next('.copy-to-clipboard').on('mouseleave', function() {
$(this).attr('aria-label', null).removeClass('tooltipped tooltipped-s tooltipped-w');
});
}
});
// allow keyboard control for prev/next links
jQuery(function() {
jQuery('.nav-prev').click(function(){
location.href = jQuery(this).attr('href');
});
jQuery('.nav-next').click(function() {
location.href = jQuery(this).attr('href');
});
});
jQuery(document).keydown(function(e) {
// prev links - left arrow key
if(e.which == '37') {
jQuery('.nav.nav-prev').click();
}
// next links - right arrow key
if(e.which == '39') {
jQuery('.nav.nav-next').click();
}
});
});
jQuery(window).on('load', function() {
function adjustForScrollbar() {
if ((parseInt(jQuery('#body-inner').height()) + 83) >= jQuery('#body').height()) {
jQuery('.nav.nav-next').css({ 'margin-right': getScrollBarWidth() });
} else {
jQuery('.nav.nav-next').css({ 'margin-right': 0 });
}
}
// adjust sidebar for scrollbar
adjustForScrollbar();
jQuery(window).smartresize(function() {
adjustForScrollbar();
});
// store this page in session
sessionStorage.setItem(jQuery('body').data('url'), 1);
// loop through the sessionStorage and see if something should be marked as visited
for (var url in sessionStorage) {
if (sessionStorage.getItem(url) == 1) jQuery('[data-nav-id="' + url + '"]').addClass('visited');
}
$(".highlightable").highlight(sessionStorage.getItem('search-value'), { element: 'mark' });
});
$(function() {
$('a[rel="lightbox"]').featherlight({
root: 'section#body'
});
});
jQuery.extend({
highlight: function(node, re, nodeName, className) {
if (node.nodeType === 3) {
var match = node.data.match(re);
if (match) {
var highlight = document.createElement(nodeName || 'span');
highlight.className = className || 'highlight';
var wordNode = node.splitText(match.index);
wordNode.splitText(match[0].length);
var wordClone = wordNode.cloneNode(true);
highlight.appendChild(wordClone);
wordNode.parentNode.replaceChild(highlight, wordNode);
return 1; //skip added node in parent
}
} else if ((node.nodeType === 1 && node.childNodes) && // only element nodes that have children
!/(script|style)/i.test(node.tagName) && // ignore script and style nodes
!(node.tagName === nodeName.toUpperCase() && node.className === className)) { // skip if already highlighted
for (var i = 0; i < node.childNodes.length; i++) {
i += jQuery.highlight(node.childNodes[i], re, nodeName, className);
}
}
return 0;
}
});
jQuery.fn.unhighlight = function(options) {
var settings = {
className: 'highlight',
element: 'span'
};
jQuery.extend(settings, options);
return this.find(settings.element + "." + settings.className).each(function() {
var parent = this.parentNode;
parent.replaceChild(this.firstChild, this);
parent.normalize();
}).end();
};
jQuery.fn.highlight = function(words, options) {
var settings = {
className: 'highlight',
element: 'span',
caseSensitive: false,
wordsOnly: false
};
jQuery.extend(settings, options);
if (!words) { return; }
if (words.constructor === String) {
words = [words];
}
words = jQuery.grep(words, function(word, i) {
return word != '';
});
words = jQuery.map(words, function(word, i) {
return word.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
});
if (words.length == 0) { return this; }
;
var flag = settings.caseSensitive ? "" : "i";
var pattern = "(" + words.join("|") + ")";
if (settings.wordsOnly) {
pattern = "\\b" + pattern + "\\b";
}
var re = new RegExp(pattern, flag);
return this.each(function() {
jQuery.highlight(this, re, settings.element, settings.className);
});
};