photochamber-webserver/static/public/js/common.js

$(() => {
    let loadingMediaList = false;
    function ReadMediaList() {
        if (loadingMediaList)
            return;
        LoadingTasks.push(() => {
            return new Promise(ok => {
                let chronology = window.chronology.isInitialized() ? "" : "&chronology"
                let oldest = (MediaStorage.Instance.oldest?.date?.getTime() || 0);
                let oldestArg = oldest ? `&from=${oldest}` : "";
                let requestCount = 300;
                $.get(`/api/media/list?count=${requestCount}${chronology}${oldestArg}`, data => {
                    MediaStorage.Instance.pushAll(data.data.map(i => new Media(i)));
                    if (data.first || data.last)
                        window.chronology.rebuildRange(data.first, data.last);
                    loadingMediaList = false;
                    if ((data.data?.length || 0) < requestCount) {
                        loadingMediaList = true;
                        document.getElementById("pch-infiniteScrollLoading").classList.add("hidden");
                        window.ReloadFilters(MediaStorage.Instance);
                    }
                    else
                        setTimeout(ReadMediaList, 25);
                    ok();
                });
            });
        });
    }

    function loadHash(md5sum) {
        if (md5sum && md5sum.length)
            LoadingTasks.push(async () => displayMediaFullPage(await MediaStorage.Instance.getMedia(md5sum)));
        else
            document.getElementById("pch-fullPageMedia").classList.add("hidden");
    }

    window.addEventListener("hashchange", x => {
        x.preventDefault();
        loadHash(document.location?.hash?.substr(1))
        return true;
    });

    onScrollBottom = (function () {
        this.lastCall= null;
        this.fnc = () => {
            if (this.lastCall !== null)
                return;
            this.lastCall = setTimeout(() => {
                this.lastCall = null;
            }, 1000);
            window.displayMoreMedia();
        };
        return this;
    })();

    window.addEventListener("scroll", evt => {
        if (window.scrollY+window.innerHeight >= document.body.clientHeight)
            onScrollBottom.fnc();
    });

    AccessManager.RebuildAccess();
    loadHash(document.location?.hash?.substr(1));
    ReadMediaList();
});