MediaWiki:Gadget-multiupload.js

// Author: pcj

mw.loader.using(["site"]).then(function() {
    if (mw.config.get("wgCanonicalSpecialPageName") !== "Upload")
        return;
 
    var l10nFactory = l10nFactory || function($lang, $data) {
        return function ($key) {
            // (null == undefined) is true, (null === undefined) is false
            return ($data[$lang] && $data[$lang][$key] != null) ? $data[$lang][$key] : $data.en[$key];
        };
    };
 
    const l10n = l10nFactory(mw.config.get("wgUserLanguage"), {
        en: {
            multiupload: "Upload multiple files:",
            yes: "Yes",
            no: "No",
            sourcefiles: "Source files:",
            categoryname: "Category name:",
            categorynamehint: "Page name of the category the files will automatically be added to, e.g. Item images",
            categorynamespace: "Category",
            uploadfiles: "Upload files",
            nofiles: "Please select some files first.",
            nolicense: "Please select a valid license first.",
            summary: "Summary",
            license: "Licensing",
            categories: "Categories",
            uploading: "Uploading files...",
            uploaded: "Uploaded:",
            failed: "Failed:",
            done: "Done."
        }
    });
 
    const getUploadDescription = function() {
        var sections = [];
 
        var summary = $("#wpUploadDescription").val();
        var licenseDisplayName = $("#wpLicense option:selected").val();
        var categoryName = $("#multiFileCategory").val();
 
        if (summary !== "")
            sections.push("== " + l10n("summary") + " ==\n" + summary);
 
        if (licenseDisplayName !== "") {
            var licenseTemplateText = $("#wpLicense option:selected").prop("title");
            sections.push("== " + l10n("license") + " ==\n" + licenseTemplateText);
        }
 
        if (categoryName !== "")
            sections.push("[[" + l10n("categorynamespace") + ":" + categoryName + "]]");
 
        return sections.join("\n\n");
    };
 
    const getWatchlistPreference = function() {
        if ($("#wpWatchthis").is(":checked")) {
            return "watch";
        } else {
            return "nochange";
        }
    };
    
    $(function(){
        $("#wpUploadFile").parent().parent().addClass("regularFileSelect");
        $("tr.regularFileSelect").before('<tr><td class="mw-label">'+ l10n("multiupload") + '</td><td class="mw-input"><label><input type="radio" name="multipleFiles" value="'+ l10n("yes") + '" /> '+ l10n("yes") + '</label> &nbsp; <label><input type="radio" name="multipleFiles" value="'+ l10n("no") + '" checked="" /> '+ l10n("no") + '</label></td></tr>');
        $("tr.regularFileSelect").after('<tr class="multipleFileSelect" style="display:none;"><td class="mw-label">' + l10n("sourcefiles") + '</td><td class="mw-input"><input type="file" id="multiupload" multiple /></td></tr>');
        $("input[name='wpUpload']").addClass("regularFileSelect");
        $("#wpDestFile").parent().parent().addClass("regularFileSelect");
        $("#wpIgnoreWarning").parent().parent().addClass("regularFileSelect");
 
        // Append "category name" textbox to multiupload section
        $("#mw-upload-form #mw-htmlform-description tbody").append('<tr class="mw-htmlform-field-HTMLTextField multipleFileSelect" style="display:none;"><td class="mw-label"><label for="multiFileCategory"><abbr title="' + l10n("categorynamehint") + '">' + l10n("categoryname") + '</abbr></label></td><td class="mw-input"><input id="multiFileCategory" name="multiFileCategory" size="60"></td></tr>');
 
        $("input[name='wpUpload']").after('<input type="button" value="' + l10n("uploadfiles") + '" class="multipleFileSelect" style="display:none;" id="multiFileSubmit" />');
        $("input[name='multipleFiles']").change(function() {
            if (this.value === l10n("yes")) {
                $(".regularFileSelect").hide();
                $(".multipleFileSelect").show();
            } else {
                $(".regularFileSelect").show();
                $(".multipleFileSelect").hide();
            }
        });
 
        $("#multiFileSubmit").click(function() {
            var files = $("#multiupload")[0].files;
 
            // Cancel upload if no files are selected
            if (files.length === 0) {
                alert(l10n("nofiles"));
                return false;
            }

            // Description is summary + license + category
            var description = getUploadDescription();
            var watch = getWatchlistPreference();
 
            $("#firstHeading").text(l10n("uploading"));
            $("#mw-content-text").html("<h3>" + l10n("uploaded")  + "</h3><ul></ul><div style='display:none;' id='multiUploadFailed'><h3>" + l10n("failed") + "</h3><ul></ul></div>");
            
            var currentFileIdx = 0;
            var uploadCurrentFile;
            uploadCurrentFile = function() {
                if (currentFileIdx > files.length) {
                    $("#mw-content-text").append("<h3>"+ l10n("done") + "</h3>");
                    return;
                }
 
                if (files[currentFileIdx] === undefined) {
                    currentFileIdx++;
                    uploadCurrentFile();
                    return;
                }
 
                fd = new FormData();
                fd.append("action", "upload");
                fd.append("token", mw.user.tokens.get("csrfToken"));
                fd.append("filename", files[currentFileIdx].name);
                fd.append("file", files[currentFileIdx]);
                fd.append("text", description);
                fd.append("watchlist", watch);
                fd.append("ignorewarnings", 1);
                fd.append("format", "json");
                
                $.ajax({
                    url: mw.util.wikiScript("api"),
                    method: "POST",
                    data: fd,
                    cache: false,
                    contentType: false,
                    processData: false,
                    type: "POST"
                }).done(function(d) {
                    if (d.error == undefined) {
                        $("#mw-content-text > ul").append('<li><a href="' + d.upload.imageinfo.descriptionurl + '" target="_blank">' + d.upload.filename + '</a></li>');
                    } else {
                        $("#multiUploadFailed ul").append('<li>' + files[currentFileIdx].name + '</li>');
                        $("#multiUploadFailed").show();
                    }
                    currentFileIdx++;
                    uploadCurrentFile();
                }).fail(function() {
                    $("#multiUploadFailed ul").append('<li>' + files[currentFileIdx].name + '</li>');
                    $("#multiUploadFailed").show();
                    currentFileIdx++;
                    uploadCurrentFile();
                });
            };
            uploadCurrentFile();
        });
    });
});