User:Makecat/Scripts/rollbacksum.js

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// Created by Gracenotes
// Credits: Porchcrop for some minor improvements. Information shown at [[en:User:Porchcrop/Rollback Summary]]
// Some changes for own use
 
function addSumLink() {
    var rbnode = [], diffnode, index = {}, gebcn = document.getElementsByClassName
        ? function(a, b, c) { return a.getElementsByClassName(c) }
        : getElementsByClassName;
    if (typeof rollbackLinksDisable == 'object' && rollbackLinksDisable instanceof Array)
        for (var i = 0; i < rollbackLinksDisable.length; i++)
            index[rollbackLinksDisable[i]] = true;
    if (!('user' in index) && wgCanonicalSpecialPageName == "Contributions" ||
        !('recent' in index) && wgCanonicalSpecialPageName == "Recentchanges" ||
        !('watchlist' in index) && wgCanonicalSpecialPageName == "Watchlist")
        rbnode = gebcn(document.getElementById("bodyContent"), "span", "mw-rollback-link");
    else if (!('history' in index) && wgAction == "history")
        rbnode = gebcn(document.getElementById("pagehistory"), "span", "mw-rollback-link");
    else if (!('diff' in index) && (diffnode = document.getElementById("mw-diff-ntitle2")))
        rbnode = gebcn(diffnode, "span", "mw-rollback-link");
    for (var i = 0, len = rbnode.length; i < len; i++)
        addRollbackSummaryLink(rbnode[i]);
};
 
function confirmRollback() {
    var url = this.href;
    var user = url.match(/[?&]from=([^&]*)/);
    if (!user) return;
    user = decodeURIComponent(user[1].replace(/\+/g, " "));
    var summary = prompt("填写回退理由：", "");
    if (summary == null || summary == "") return false;
    //else if (summary == "取消[[Special:Contributions/$2|$2]]（[[User talk:$2|对话]]）的编辑；更改回$1的最后一个版本")
    //    return true;
    this.href = this.href.replace("?", "?summary=" + encodeURIComponent("取消[[Special:Contributions/$2|$2]]（[[User talk:$2|对话]]）的编辑；更改回$1的最后一个版本：" + summary) + "&"); 
};
 
function addRollbackSummaryLink(rbnode) {
    var rblink = rbnode.getElementsByTagName("a")[0];
    var alink = rblink.cloneNode(true);
    alink.className = ""; //don't confuse other scripts
    alink.firstChild.nodeValue = "理由";
    alink.onclick = confirmRollback;
    rbnode.insertBefore(alink, rblink.nextSibling);
    rbnode.insertBefore(document.createTextNode(" | "), alink);
};
if (typeof rollbackLinksDisable == 'undefined')
    rollbackLinksDisable = [];
if (typeof rollbackSummaryDefault == 'undefined')
    rollbackSummaryDefault = ""; 
 
$(addSumLink);