jyapayne/nim-by-example
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Add next-prev buttons

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Fixes #22
This commit is contained in:
Flaviu Tamas 2015-05-31 16:09:37 -04:00
commit 32ff8d601f
3 changed files with 52 additions and 7 deletions
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41
content/js/main.js
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@ -7,13 +7,6 @@ function setVisibleTags(){
}
}
var isMobile = window.screen.width < 720;
if (localStorage.getItem("openside") === null) {
window.sidebarExpanded = !isMobile;
} else {
window.sidebarExpanded = (localStorage.getItem("openside") === "true");
}
function updateSidebar(notransition) {
if (notransition) {
document.querySelectorAll("#sidebar")[0].classList.add("notransition");
@ -40,8 +33,42 @@ function sidebarClick() {
updateSidebar(false);
}
function getNextPrev() {
// thanks iznogoodd from #nim @ freenode.net
var links = document.querySelectorAll('#sidebar a[href]');
var nav = {prev: null, next: null};
for(var i = 0; i < links.length; i++){
var item = links.item(i);
if(item && item.getAttribute('href') === window.location.pathname){
nav.prev = links.item(i - 1) && links.item(i - 1).getAttribute('href');
nav.next = links.item(i + 1) && links.item(i + 1).getAttribute('href');
return nav;
}
}
}
function updateNextPrevButtons() {
var nav = getNextPrev();
var prev = document.getElementById("arrow-prev");
var next = document.getElementById("arrow-next");
if (nav.prev != null) { prev.classList.remove("disabled"); prev.href = nav.prev; }
if (nav.next != null) { next.classList.remove("disabled"); next.href = nav.next; }
}
var isMobile = window.screen.width < 720;
if (localStorage.getItem("openside") === null) {
window.sidebarExpanded = !isMobile;
} else {
window.sidebarExpanded = (localStorage.getItem("openside") === "true");
}
localStorage.setItem(window.location.pathname, true);
window.onload = function(){
updateSidebar(true);
setVisibleTags();
updateNextPrevButtons();
}