// ==UserScript==
// @name        IIchan Title
// @namespace   Bakascripts
// @version     0.003
// @author      Cirno
// @description Script for settting title on IIchan pages
// @match       http://iichan.hk/*/res/*.html
// @match       https://iichan.hk/*/res/*.html
// @license GLWTPL
// ==/UserScript==
function GetTitleFrom(place) {
    switch(place) {
        case 'header':
            var element = document.querySelector(".filetitle");
            if(element) {
                if(element.textContent.length != 0) return element.textContent;
            }
            break;
        case 'text':
            var element = document.querySelector("form#delform>div>blockquote>p");
            if(element) {
                if(element.textContent.length != 0) return element.textContent.substring(0, 64);
            }
            break;
        case 'image':
            var element = document.querySelector("form#delform>div>span.filesize>a");
            if(element) {
                if(element.textContent.length != 0) return element.textContent;
            }
            break;
    }
}

function GetMeaningfulThreadTitle() {
    return (GetTitleFrom('header') || GetTitleFrom('text') || GetTitleFrom('image') || "");
}

function GetBoardName() {
    return window.location.pathname.split("/")[1];
}

function SetThreadTitle() {
    var iiTabTitle = "/" + GetBoardName() + "/" + GetMeaningfulThreadTitle();
    document.title = iiTabTitle;
}

SetThreadTitle();