PEE/firefox/kohlchan-hooks.js

const pc = postCommon;
const pcasf = pc.addSelectedFile.bind(pc);
let prevFile;
pc.addSelectedFile = (f, unk) => {
    pcasf(f, unk);
    // will only embed in the first file
    const refresh = () => {
        const currentFile = pc.selectedFiles[0];
        if (prevFile != currentFile) {
            prevFile = currentFile;
            document.dispatchEvent(new CustomEvent("PEEFile", { detail: prevFile }));
        }
    };
    refresh();
    const rb = pc.selectedDiv.lastChild?.getElementsByClassName("removeButton")[0];
    if (rb)
        rb.addEventListener("click", refresh);
};

document.addEventListener("QRSetFile", (e) => {
    if (pc.selectedFiles.length > 0)
        pc.selectedFiles[0] = e.detail.file;
});

const taup = thread.addUnreadPost.bind(thread);
thread.addUnreadPost = (e) => {
    taup(e);

    document.dispatchEvent(new CustomEvent("ThreadUpdate", {
        detail: {
            newPosts: ['b.' + e.postId]
        }
    }));
}