MediaWiki:Common.js: Difference between revisions

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MediaWiki:Common.js (view source)

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         // Remove “empty” optional sections so they don’t leave gaps in print.
         // Remove “empty” optional sections so they don’t leave gaps in print.
         // --- PRUNE EMPTY PRINT SECTIONS (ES5-safe) ---
         // --- SQUASH VERTICAL GAPS ABOVE SECTIONS (print-only) ---
         (function () {
         (function () {
           var content = doc.getElementById("article-content");
           var css =
          if (!content) return;
            "@media print{" +
            /* 1) Kill all margins/paddings on direct children inside the print content */
            "  #article-content > *{margin:0!important;padding:0!important;}" +
            /* 2) Ensure paragraphs inside rich text don’t re-introduce big gaps */
            "  .article-description p,.article-reflection p,.article-external-reference p,.article-quote p{margin:0!important;}" +
            "  .article-description p + p,.article-reflection p + p{margin-top:1.2mm!important;}" +
            /* 3) All ruled blocks: keep only a tiny bottom padding for the hairline */
            "  .article-entry-number," +
            "  .link-pdf," +
            "  .article-type," +
            "  .article-metadata," +
            "  .article-images," +
            "  .article-description," +
            "  .article-reflection," +
            "  .article-external-reference," +
            "  .article-quote," +
            "  .article-mod-line{" +
            "    padding-bottom:1.2mm!important;" /* space for the hairline */ +
            "  }" +
            /* 4) Labels: zero their own top margin by default */
            "  .article-label-description," +
            "  .article-label-reflection," +
            "  .article-label-external-reference," +
            "  .article-label-quote," +
            "  .article-label-modification-date{" +
            "    margin-top:0!important;" +
            "  }" +
            /* 5) Add ONE uniform spacer above labels when they follow any ruled block */
            "  .article-entry-number + .article-label-description," +
            "  .link-pdf + .article-label-description," +
            "  .article-type + .article-label-description," +
            "  .article-metadata + .article-label-description," +
            "  .article-images + .article-label-description," +
            "  .article-description + .article-label-reflection," +
            "  .article-reflection + .article-label-external-reference," +
            "  .article-external-reference + .article-label-quote," +
            "  .article-quote + .article-label-modification-date{" +
            "    margin-top:1.2mm!important;" /* <- tweak this single value to taste */ +
            "  }" +
            /* 6) Also no extra gap between a label and its body */
            "  .article-label-description + .article-description," +
            "  .article-label-reflection + .article-reflection," +
            "  .article-label-external-reference + .article-external-reference," +
            "  .article-label-quote + .article-quote," +
            "  .article-label-modification-date + .article-modification-date{" +
            "    margin-top:0!important;" +
            "  }" +
            /* 7) Last block on the page: remove rule/padding to avoid tail gap */
            "  #article-content > :last-child{padding-bottom:0!important;}" +
            "  #article-content > :last-child::after{content:none!important;}" +
            "}";


           // Remove pure-whitespace text nodes so :empty checks can work
           var style = doc.createElement("style");
          function stripWhitespaceTextNodes(node) {
           style.type = "text/css";
            var i, child;
           style.appendChild(doc.createTextNode(css));
            for (i = node.childNodes.length - 1; i >= 0; i--) {
           doc.head.appendChild(style);
              child = node.childNodes[i];
              if (
                child.nodeType === 3 &&
                (!child.nodeValue ||
                  child.nodeValue.replace(/\u00a0/g, " ").trim() === "")
              ) {
                node.removeChild(child);
              } else if (child.nodeType === 1) {
                stripWhitespaceTextNodes(child);
              }
            }
          }
          stripWhitespaceTextNodes(content);
 
          function isEffectivelyEmpty(el) {
            if (!el) return true;
            // images make it non-empty
            if (el.getElementsByTagName("img").length) return false;
            // ignore <br>
            var brs = el.getElementsByTagName("br");
            while (brs.length) brs[0].parentNode.removeChild(brs[0]);
            var txt = (el.textContent || "").replace(/\u00a0/g, " ").trim();
            return txt.length === 0;
          }
          function rm(el) {
            if (el && el.parentNode) el.parentNode.removeChild(el);
          }
 
          // Label/content pairs to prune together
          var PAIRS = [
            ["article-label-description", "article-description"],
            ["article-label-reflection", "article-reflection"],
            ["article-label-external-reference", "article-external-reference"],
            ["article-label-quote", "article-quote"],
            ["article-label-modification-date", "article-modification-date"],
          ];
 
          // Remove empty metadata columns, then whole metadata if all empty
          (function pruneMetadata() {
            var meta = content.querySelector(".article-metadata");
            if (!meta) return;
            var cols = meta.querySelectorAll(".article-metadata-column");
            var nonEmptyCols = 0;
            for (var i = 0; i < cols.length; i++) {
              var val = cols[i].querySelector(".article-metadata-value");
              if (isEffectivelyEmpty(val)) {
                rm(cols[i]);
              } else {
                nonEmptyCols++;
              }
            }
            if (!nonEmptyCols) rm(meta);
          })();
 
          // Prune each label/content pair if content is empty (or missing)
          for (var i = 0; i < PAIRS.length; i++) {
            var label = content.querySelector("." + PAIRS[i][0]);
            var body = content.querySelector("." + PAIRS[i][1]);
            if (!body || isEffectivelyEmpty(body)) {
              rm(label);
              rm(body);
            }
          }
 
          // If images wrapper has no <img>, remove it
          var imagesWrap = content.querySelector(".article-images");
          if (imagesWrap && !imagesWrap.getElementsByTagName("img").length) {
            rm(imagesWrap);
          }
 
          // After pruning, strip whitespace again so first/last-child calcs are clean
          stripWhitespaceTextNodes(content);
 
          // Mark the LAST visible block so we can remove its hairline/padding
          var kids = content.children;
          if (kids && kids.length) {
            // Remove any previous marker
            var old = content.querySelector(".no-rule-last");
            if (old)
              old.className = old.className
                .replace(/\bno-rule-last\b/g, "")
                .trim();
            kids[kids.length - 1].className += " no-rule-last";
          }
 
          // Tiny CSS to kill rule & padding on the last element and tighten rhythm
          var tidy = doc.createElement("style");
           tidy.type = "text/css";
           tidy.appendChild(
            doc.createTextNode(
              "@media print {" +
                "  #article-content > * { margin-top:0 !important; margin-bottom:0 !important; }" +
                "  #article-content > * + * { margin-top:2mm !important; }" +
                "  /* kill hairline/padding on last visible block */" +
                "  #article-content > .no-rule-last { padding-bottom:0 !important; }" +
                "  #article-content > .no-rule-last::after { content:none !important; display:none !important; }" +
                "  /* paragraphs inside rich text */" +
                "  .article-description p, .article-reflection p { margin:0 0 1.2mm 0 !important; }" +
                "  .article-description p:last-child, .article-reflection p:last-child { margin-bottom:0 !important; }" +
                "}"
            )
          );
           doc.head.appendChild(tidy);
         })();
         })();


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   if (submitButton) {
   if (submitButton) {
     // Add click event listener
     // Add click event listener
     submitButton.addEventListener("click", function (event) {
     submitButton.addEventListener("click", function (event) {
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