/* Make a "Hide/Show Stale Items" button */

var staleHidden = false;
var staleItems = new Set(document.getElementsByClassName("stale"));
var staleFeeds = new Set(document.getElementsByClassName("stale_feed"));
var feedlistFeeds = new Set(document.getElementById("feedlist").children);

function hideShowStale(){
    var display;
    if (staleHidden) {
        display = null; staleHidden = false;
        flBG = null; flBB = null;
    } else {
        display = 'none'; staleHidden = true;
        flBG = 'inherit'; flBB = '1px solid';
    }
    staleItems.forEach(e => { e.style.display = display; });
    staleFeeds.forEach(e => { e.style.display = display; });
    if (window.innerWidth > 720) {
        feedlistFeeds.forEach(e => { e.style.background = flBG; e.style.borderBottom = flBB; });
    }
}

var button = document.getElementById("stalebutton");
button.addEventListener("click", function() {
    hideShowStale();
    if (staleHidden) { button.textContent = "show stale"; }
    else { button.textContent = "hide stale"; }
});