User:Quarl/show diff since.js

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This code will be executed when previewing this page.

Documentation for this user script can be added at User:Quarl/show diff since.

Note: After saving, you have to bypass your browser's cache to see the changes. Google Chrome, Firefox, Microsoft Edge and Safari: Hold down the ⇧ Shift key and click the Reload toolbar button. For details and instructions about other browsers, see Wikipedia:Bypass your cache.

// User:Quarl/show_diff_since.js - add 'since' tab to show change since I last edited

// requires: get_page_name.js

// based on http://en.wikipedia.org/wiki/Wikipedia:WikiProject_User_scripts/Scripts/Changes_since_I_last_edited
// from http://en.wikipedia.org/w/index.php?title=User:JesseW/monobook.js&oldid=20755510

// <pre><nowiki>

function addTab_DiffSince() {
    if (window.location.href.indexOf("&action=history&gotosince=true")!=-1) {
       do_since_I_last_edited();
    }
    else if (!/wiki\/Special:|w\/index.php?title=Special:/.test(window.location.href)) {
       var nurl = "/w/index.php?title="+getPname()+"&action=history&gotosince=true";
       addTab(nurl, 'since', 'ca-since', "Changes since I last edited");
    }
}

function do_since_I_last_edited() {
        var csub=document.getElementById("contentSub");
        var msg=document.createElement("p");
        msg.appendChild(document.createTextNode
                        ("Parsing history... please wait..."));
        msg.className="error";
        csub.insertBefore(msg, csub.firstChild)

        var username=document.getElementById("pt-userpage").textContent;
        var hists=document.getElementById("pagehistory").childNodes;
        for (n=0;n<hists.length;n++) {
            if (hists[n].getElementsByTagName("span")[0].textContent==username) {
                document.location=hists[n].childNodes[1].href; 
                return;
            }
        }

        msg.replaceChild(document.createTextNode
                         ("You have not edited this page! (recently)"),
                         msg.firstChild);
}

addOnloadHook(addTab_DiffSince);

// </nowiki></pre>