141 lines
4.3 KiB
JavaScript
141 lines
4.3 KiB
JavaScript
// Dean Attali / Beautiful Jekyll 2016
|
|
|
|
var main = {
|
|
|
|
bigImgEl : null,
|
|
numImgs : null,
|
|
|
|
init : function() {
|
|
// Shorten the navbar after scrolling a little bit down
|
|
$(window).scroll(function() {
|
|
if ($(".navbar").offset().top > 50) {
|
|
$(".navbar").addClass("top-nav-short");
|
|
$(".navbar-custom .avatar-container").fadeOut(500);
|
|
} else {
|
|
$(".navbar").removeClass("top-nav-short");
|
|
$(".navbar-custom .avatar-container").fadeIn(500);
|
|
}
|
|
});
|
|
|
|
// On mobile, hide the avatar when expanding the navbar menu
|
|
$('#main-navbar').on('show.bs.collapse', function () {
|
|
$(".navbar").addClass("top-nav-expanded");
|
|
});
|
|
$('#main-navbar').on('hidden.bs.collapse', function () {
|
|
$(".navbar").removeClass("top-nav-expanded");
|
|
});
|
|
|
|
// On mobile, when clicking on a multi-level navbar menu, show the child links
|
|
$('#main-navbar').on("click", ".navlinks-parent", function(e) {
|
|
var target = e.target;
|
|
$.each($(".navlinks-parent"), function(key, value) {
|
|
if (value == target) {
|
|
$(value).parent().toggleClass("show-children");
|
|
} else {
|
|
$(value).parent().removeClass("show-children");
|
|
}
|
|
});
|
|
});
|
|
|
|
// Ensure nested navbar menus are not longer than the menu header
|
|
var menus = $(".navlinks-container");
|
|
if (menus.length > 0) {
|
|
var navbar = $("#main-navbar ul");
|
|
var fakeMenuHtml = "<li class='fake-menu' style='display:none;'><a></a></li>";
|
|
navbar.append(fakeMenuHtml);
|
|
var fakeMenu = $(".fake-menu");
|
|
|
|
$.each(menus, function(i) {
|
|
var parent = $(menus[i]).find(".navlinks-parent");
|
|
var children = $(menus[i]).find(".navlinks-children a");
|
|
var words = [];
|
|
$.each(children, function(idx, el) { words = words.concat($(el).text().trim().split(/\s+/)); });
|
|
var maxwidth = 0;
|
|
$.each(words, function(id, word) {
|
|
fakeMenu.html("<a>" + word + "</a>");
|
|
var width = fakeMenu.width();
|
|
if (width > maxwidth) {
|
|
maxwidth = width;
|
|
}
|
|
});
|
|
$(menus[i]).css('min-width', maxwidth + 'px')
|
|
});
|
|
|
|
fakeMenu.remove();
|
|
}
|
|
|
|
// show the big header image
|
|
main.initImgs();
|
|
},
|
|
|
|
initImgs : function() {
|
|
// If the page was large images to randomly select from, choose an image
|
|
if ($("#header-big-imgs").length > 0) {
|
|
main.bigImgEl = $("#header-big-imgs");
|
|
main.numImgs = main.bigImgEl.attr("data-num-img");
|
|
|
|
// 2fc73a3a967e97599c9763d05e564189
|
|
// set an initial image
|
|
var imgInfo = main.getImgInfo();
|
|
var src = imgInfo.src;
|
|
var desc = imgInfo.desc;
|
|
main.setImg(src, desc);
|
|
|
|
// For better UX, prefetch the next image so that it will already be loaded when we want to show it
|
|
var getNextImg = function() {
|
|
var imgInfo = main.getImgInfo();
|
|
var src = imgInfo.src;
|
|
var desc = imgInfo.desc;
|
|
|
|
var prefetchImg = new Image();
|
|
prefetchImg.src = src;
|
|
// if I want to do something once the image is ready: `prefetchImg.onload = function(){}`
|
|
|
|
setTimeout(function(){
|
|
var img = $("<div></div>").addClass("big-img-transition").css("background-image", 'url(' + src + ')');
|
|
$(".intro-header.big-img").prepend(img);
|
|
setTimeout(function(){ img.css("opacity", "1"); }, 50);
|
|
|
|
// after the animation of fading in the new image is done, prefetch the next one
|
|
//img.one("transitioned webkitTransitionEnd oTransitionEnd MSTransitionEnd", function(){
|
|
setTimeout(function() {
|
|
main.setImg(src, desc);
|
|
img.remove();
|
|
getNextImg();
|
|
}, 1000);
|
|
//});
|
|
}, 6000);
|
|
};
|
|
|
|
// If there are multiple images, cycle through them
|
|
if (main.numImgs > 1) {
|
|
getNextImg();
|
|
}
|
|
}
|
|
},
|
|
|
|
getImgInfo : function() {
|
|
var randNum = Math.floor((Math.random() * main.numImgs) + 1);
|
|
var src = main.bigImgEl.attr("data-img-src-" + randNum);
|
|
var desc = main.bigImgEl.attr("data-img-desc-" + randNum);
|
|
|
|
return {
|
|
src : src,
|
|
desc : desc
|
|
}
|
|
},
|
|
|
|
setImg : function(src, desc) {
|
|
$(".intro-header.big-img").css("background-image", 'url(' + src + ')');
|
|
if (typeof desc !== typeof undefined && desc !== false) {
|
|
$(".img-desc").text(desc).show();
|
|
} else {
|
|
$(".img-desc").hide();
|
|
}
|
|
}
|
|
};
|
|
|
|
// 2fc73a3a967e97599c9763d05e564189
|
|
|
|
document.addEventListener('DOMContentLoaded', main.init);
|