From 6d63c61bb97591c0e97f00e606468754f6180b80 Mon Sep 17 00:00:00 2001
From: Jesse Hallett <jesse@galois.com>
Date: Mon, 23 Dec 2013 16:11:30 -0800
Subject: Wikipedia guideline: do not use inline styles

---
 guidelines/wikipedia/inlineStyle.js | 47 +++++++++++++++++++++++++++++++++++++
 guidelines/wikipedia/wikipedia.json |  1 +
 2 files changed, 48 insertions(+)
 create mode 100644 guidelines/wikipedia/inlineStyle.js

diff --git a/guidelines/wikipedia/inlineStyle.js b/guidelines/wikipedia/inlineStyle.js
new file mode 100644
index 0000000..261586d
--- /dev/null
+++ b/guidelines/wikipedia/inlineStyle.js
@@ -0,0 +1,47 @@
+exports.name = "Do not use in-line styles";
+exports.description = "In-line styles make it much harder for people with specific needs to change the wikimedia styles and to retain consistency.";
+
+exports.rule = function(report) {
+  $5('#mw-content-text [style]').filter(excludes).each(function(i, elem) {
+    report.error("Element contains in-line style rules.", elem);
+  });
+};
+
+function excludes(i, elem) {
+  var $elem = $(elem);
+
+  // Ignore width rules.
+  var widthRule = everyStyle($elem, function(s) {
+    return s === 'width';
+  });
+
+  // It seems that Wikipedia's standard table templates include some
+  // inline styles.  Ignore these.
+  var table = $elem.is('table, th, td');
+
+  // The standard reference list template also seems to include some
+  // inline styles.
+  var reference = $elem.hasClass('reflist references-column-width') ||
+    $elem.hasClass('error') ||
+    ($elem.is('.citation ~ * *') && !$.trim($elem.text())); // <span>&nbsp;</span>
+
+  // The [citation needed] template includes a white-space:nowrap style.
+  var citationNeeded = $elem.hasClass('Template-Fact') && everyStyle($elem, function(s) {
+    return s === 'white-space';
+  });
+
+  var navboxPadding = $elem.closest('.navbox').length > 0 && everyStyle($elem, function(s) {
+    return s.slice(0,7) === 'padding';
+  });
+
+  // Ignore hidden microformat fields.
+  var microformat = $elem.css('display') === 'none' &&
+    $elem.closest('.vcard, .vevent').length > 0;
+
+  return !widthRule && !table && !reference && !citationNeeded &&
+    !navboxPadding && !microformat;
+}
+
+function everyStyle($elem, fn) {
+  return Array.prototype.every.call($elem.prop('style'), fn);
+}
diff --git a/guidelines/wikipedia/wikipedia.json b/guidelines/wikipedia/wikipedia.json
index bb36baa..e6030ac 100644
--- a/guidelines/wikipedia/wikipedia.json
+++ b/guidelines/wikipedia/wikipedia.json
@@ -16,5 +16,6 @@
   , "spaceBetweenListItems.js"
   , "imageAlt.js"
   , "imageCaption.js"
+  , "inlineStyle.js"
   ]
 }
-- 
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