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TweetDuck/Resources/Guide/script.js

85 lines
2.4 KiB
JavaScript

var init = function(){
if (!("open" in document.getElementsByTagName("details")[0])){
var elements = document.getElementsByTagName("details");
var onClick = function(e){
var summary = e.target;
var parent = e.target.parentElement;
var contents = e.target.nextElementSibling;
if (parent.hasAttribute("open")){
parent.removeAttribute("open");
summary.setAttribute("aria-expanded", "false");
contents.setAttribute("aria-hidden", "true");
contents.style.display = "none";
}
else{
parent.setAttribute("open", "");
summary.setAttribute("aria-expanded", "true");
contents.setAttribute("aria-hidden", "false");
contents.style.display = "block";
}
};
var onKey = function(e){
if (e.keyCode === 13 || e.keyCode === 32){
onClick(e);
}
};
for(var index = 0; index < elements.length; index++){
var ele = elements[index];
if (ele.childElementCount === 2){
var summary = ele.children[0];
var contents = ele.children[1];
ele.style.display = "block";
ele.setAttribute("role", "group");
summary.setAttribute("role", "button");
summary.setAttribute("aria-expanded", "false");
summary.setAttribute("tabindex", 0);
summary.addEventListener("click", onClick);
summary.addEventListener("keydown", onKey);
contents.setAttribute("aria-hidden", "true");
contents.style.display = "none";
}
}
}
else if ("WebkitAppearance" in document.documentElement.style){
var elements = document.getElementsByTagName("summary");
var onMouseDown = function(e){
e.target.classList.add("webkit-workaround");
};
var onMouseUp = function(e){
e.target.classList.remove("webkit-workaround");
e.target.blur();
};
for(var index = 0; index < elements.length; index++){
elements[index].addEventListener("mousedown", onMouseDown);
elements[index].addEventListener("mouseup", onMouseUp);
}
}
if (location.hash.length > 1){
var element = document.getElementById(location.hash.substring(1));
if (element && element.tagName === "SUMMARY"){
element.click();
element.scrollIntoView(true);
}
}
};
if (document.readyState !== "loading"){
init();
}
else{
document.addEventListener("DOMContentLoaded", init);
}