User:ilmari Karonen Nfurbacklink.js

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This code will be executed when previewing this page.

Documentation for this user script can be added at User:Ilmari Karonen/nfurbacklink.

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// See the talk page for information about this script and how to use it.



if (mw.config.get('wgNamespaceNumber') == 6 && mw.config.get('wgAction') == "edit" && /[&?]nfurbacklink=/.test(window.location.search)) {

    addOnloadHook(function () {

        var editform = document.editform;

        if (!editform) return;

        var textbox = editform.wpTextbox1;

        if (!textbox) return;



        var previewDiv = document.getElementById("wikiPreview");



        var backlink = decodeURIComponent(/[&?]nfurbacklink=([^&]*)/.exec(window.location.search)[1]);



        var nfur_tag = " *(:? *[Tt]emplate: *)?(([Nn]on-free ((fair )?use|media) r|[Ff]air use r|[Rr])ationale|[Aa]lbum cover fur)";

        nfur_tag = nfur_tag.replace(/ /g, "[_\\s]").replace(/\(/g, "(?:");



        // bonus feature: automatically change "ResolutionReduced" to "Low_resolution"

        textbox.value = textbox.value.replace(new RegExp ("(\\|\s*)ResolutionReduced(\s*=)", "g"), "$1Low_resolution$2");



        var new_value = textbox.value.replace(new RegExp ("\\{\\{(" + nfur_tag + "[_ ]*(?:\\s*<!--(?:-?[^\\-])*--> *)?)\n?(\\s*\\|\\s*)(?:Article\\s*=\\s*\\|\\s*)?"), "{"+"{$1\n$2Article="+backlink+"\n$2");

        var safety_re = new RegExp ("\\{\\{" + nfur_tag + "[_\\s]*(?:<!--(?:-?[^\\-])*-->\\s*)?(?:\\|[\\s\\S]*)?(?:\\{\\{" + nfur_tag + "[_\\s]*\\||\\|\\s*Article\\s*=\\s*[^\\s|])");



        if (new_value != textbox.value && !safety_re.test(textbox.value)) {

            textbox.value = new_value;

            if (editform.wpSummary) editform.wpSummary.value = "adding [[Template:Non-free use rationale|NFUR]] backlink to ["+"["+backlink+"]"+"] with [[User:Ilmari Karonen/nfurbacklink.js|javascript assistance]]";

            if (editform.wpMinoredit) editform.wpMinoredit.checked = true;

            if (window.nfurbacklinkautosave && editform.wpSave) editform.wpSave.click();  // not recommended, but some people like to take risks...

            else if (editform.wpDiff) editform.wpDiff.click();

        }

        else if (previewDiv) {

            var errorMsg = document.createElement("div");

            errorMsg.style.padding = "4px";

            errorMsg.style.border = "2px solid red";

            errorMsg.style.margin = "1em 0";

            errorMsg.appendChild(document.createTextNode("Unable to fix backlink, please add \""));

            errorMsg.appendChild(document.createElement("code"));

            errorMsg.lastChild.appendChild(document.createTextNode("|Article=" + backlink));

            errorMsg.appendChild(document.createTextNode("\" manually."));

            previewDiv.parentNode.insertBefore(errorMsg, previewDiv);

        }

    });

}

else if (mw.config.get('wgNamespaceNumber') == 6 && mw.config.get('wgAction') == "view") {

    addOnloadHook(function () {

        var linkList = document.getElementById("mw-imagepage-section-linkstoimage");

        if (!linkList) return;



        var rationale = false;

        var tables = document.getElementsByTagName("table");

        for (var i = 0; i < tables.length; i++) {

            var summary = tablesi].getAttribute("summary");

            if (!/^The (non-free|fair) use rationale of this image/.test(summary)) continue;

            if (rationale) return; // more than one rationale

            rationale = tablesi];

        }

        if (!rationale) return;

        tables = null;  // free DOM NodeList object



        var links = linkList.getElementsByTagName("a");

        var title = links0].getAttribute("title");

        if (links.length != 1) title = "";  // should have exactly one link here

        if (/^(Talk|User|Wikipedia|Image|File|MediaWiki|Template|Help|Category|Portal)( talk)?:/.test(title)) title = "";  // wrong ns

        links = null;  // free DOM NodeList object



        var cells = rationale.getElementsByTagName("td");

        for (var j = 0; j < cells.length; j++) {

            if (/^\s*\[\[(\{\{\{Article\}\}\})?\]\]\s*$/.test(cellsj].textContent)) {

                var cellContent = cellsj].getElementsByTagName("p")[0]; 

                if (!cellContent) cellContent = cellsj];  // fallback, in case markup changes



                var fixLink = document.createElement("a");

                fixLink.className = "external";

                fixLink.href = mw.config.get('wgScript') + "?title=" + encodeURIComponent(mw.config.get('wgPageName')) + "&action=edit";

                if (title) {

                    fixLink.href += "&nfurbacklink=" + encodeURIComponent(title);

                    fixLink.appendChild(document.createTextNode("set to "));

                    fixLink.appendChild(document.createElement("i"));

                    fixLink.lastChild.appendChild(document.createTextNode(title));

                } else {

                    fixLink.appendChild(document.createTextNode("please fix manually"));

                }

                var fixSpan = document.createElement("span");

                fixSpan.className = "plainlinks";

                fixSpan.appendChild(document.createTextNode(" ["));

                fixSpan.appendChild(fixLink);

                fixSpan.appendChild(document.createTextNode("] "));

                cellContent.appendChild(fixSpan);

            }

        }

    });

}