initial checkin

wtf@phpied.com/chrome.manifest

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+content		wtf		chrome/content/
+overlay		chrome://yslow/content/browser.xul		chrome://wtf/content/browser.xul

wtf@phpied.com/chrome/content/browser.xul

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+<?xml version="1.0" encoding="utf-8"?>
+<overlay xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" xmlns:html="http://www.w3.org/1999/xhtml" id="yslow-wtf-overlay">
+
+    <script type="application/x-javascript" src="chrome://wtf/content/wtf.js"></script>
+
+</overlay>

wtf@phpied.com/chrome/content/wtf.js

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+/*global YSLOW */
+YSLOW.registerRule({
+    id: 'wtf-blink',
+    name: '<blink>',
+    info: ""There's a lady who knows, all that blinkers is gold" - Led Zeppelin",
+    category: ['general'],
+    config: {},
+
+	lint: function (doc, cset, config) {
+		var count = doc.getElementsByTagName('blink').length,
+		    message = '';
+
+		if (count) {
+		    message = YSLOW.util.plural('Oh my, %num% blink tag%s%, <blink style="color:red">seriously?</blink>', count);
+		}
+
+		return {
+		    score: count ? 1 : 100,
+		    message: message
+		};
+	}
+});
+
+
+
+YSLOW.registerRule({
+    id: 'wtf-marquee',
+    name: '&lt;marquee&gt;',
+    info: "&quot;Hello&quot; - Marqueez de Sade",
+    category: ['general'],
+    config: {},
+
+	lint: function (doc, cset, config) {
+		var count = doc.getElementsByTagName('marquee').length,
+		    message = '';
+
+		if (count) {
+		    message = YSLOW.util.plural('Ah-ha, %num% marquee tag%s%, impressive!', count);
+		}
+
+		return {
+		    score: count ? 1 : 100,
+		    message: message
+		};
+	}
+});
+
+YSLOW.registerRule({
+    id: 'wtf-font',
+    name: '&lt;font&gt;',
+    info: "Once upon a time, a long time a ago, before the @font-face has even been imagined, there was the &lt;font&gt; tag",
+    category: ['general'],
+    config: {
+        points: 21
+    },
+
+	lint: function (doc, cset, config) {
+		var count = doc.getElementsByTagName('font').length,
+		    message = '';
+
+		if (count) {
+		    message = YSLOW.util.plural('%num% font tag%s% - must be one hell of a web page', count);
+		}
+
+		return {
+		    score: count ? 100 - count * config.points : 100,
+		    message: message
+		};
+	}
+});
+
+YSLOW.registerRule({
+    id: 'wtf-doctype',
+    name: 'Use a doctype',
+    info: "Without a DOCTYPE, the page renders in quirks mode. The shortest doctype you can put at the very top of the page is <code>&lt;!doctype html&gt;</code>",
+    category: ['general'],
+    config: {},
+
+	lint: function (doc, cset, config) {
+		var dtype = doc.doctype,
+		    message = '';
+
+		if (!dtype) {
+		    message = "The page doesn't have a doctype";
+		}
+
+		return {
+		    score: !dtype ? 1 : 100,
+		    message: message
+		};
+	}
+});
+
+
+YSLOW.registerRule({
+    id: 'wtf-spacer',
+    name: 'No more spacer.gif',
+    info: "For layout purposes, use CSS instead of spacer images",
+    category: ['general'],
+    config: {
+        hints: ['spacer', 'dot', 'clear', 'pixel', '1x1'],
+        points: 21
+    },
+
+	lint: function (doc, cset, config) {
+		var images = doc.images,
+		    i = 0, max = images.length,
+		    message = '',
+		    count = 0,
+		    url,
+		    img,
+		    re = new RegExp(config.hints.join('|'), 'i');
+
+
+		for (i = 0; i < max; i += 1) {
+		    img = images[i];
+		    url = img.src;
+		    url = url.split('/').pop();
+		    if (re.test(url) && img.naturalWidth === 1 && img.naturalHeight === 1) {
+		        count += 1;
+		    }
+		}
+
+
+		if (count) {
+		    message = YSLOW.util.plural('%num% spacer GIF%s% found', count);
+		}
+
+		return {
+		    score: count ? 100 - count * config.points : 100,
+		    message: message
+		};
+	}
+});
+
+
+
+YSLOW.registerRule({
+    id: 'wtf-hashlinks',
+    name: 'Semantic link hrefs',
+    info: "Links should be links. Links with href such as href=# and href=&quot;javascript:&quot; should be avoided like the plague",
+    category: ['general'],
+    config: {
+        points: 21
+    },
+
+	lint: function (doc, cset, config) {
+
+		var links = doc.links,
+		    i, max = links.length,
+	        href,
+		    message = '',
+		    count = 0;
+
+		for (i = 0; i < max; i += 1) {
+		    href = links[i].getAttribute('href').toString();
+		    if (href === "#" || href.indexOf('javascript:') === 0) {
+		        count += 1;
+		    }
+		}
+
+		if (count) {
+		    message = YSLOW.util.plural('Found %num% link%s% with non-semantic href attributes', count);
+		}
+
+		return {
+		    score: count ? 100 - count * config.points : 100,
+		    message: message
+		};
+	}
+});
+
+
+
+YSLOW.registerRuleset({
+    id: 'wtf',
+    name: 'Web Testing Framework',
+    rules: {
+        'wtf-blink': {},
+        'wtf-marquee': {},
+        'wtf-font': {},
+        'wtf-doctype': {},
+        'wtf-spacer': {},
+        'wtf-hashlinks': {}
+    },
+	weights: {
+        'wtf-blink': 1,
+        'wtf-marquee': 1,
+        'wtf-font': 1,
+        'wtf-doctype': 1,
+        'wtf-spacer': 1,
+        'wtf-hashlinks': 1
+	}
+});
+

wtf@phpied.com/install.rdf

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+<?xml version="1.0"?>
+<RDF:RDF xmlns:em="http://www.mozilla.org/2004/em-rdf#"
+         xmlns:NC="http://home.netscape.com/NC-rdf#"
+         xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
+  <RDF:Description RDF:about="rdf:#$41y0G2"
+                   em:id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"
+                   em:minVersion="2"
+                   em:maxVersion="3.*" />
+  <RDF:Description RDF:about="urn:mozilla:install-manifest"
+                   em:id="wtf@phpied.com"
+                   em:name="Web Testing Framework"
+                   em:version="0.0.1"
+                   em:creator="Stoyan Stefanov"
+                   em:description="A YSlow extension for inspecting shady webdev practices"
+                   em:homepageURL="http://phpied.com/wtf/"
+                   em:iconURL="chrome://wtf/content/icon.png">
+    <em:targetApplication RDF:resource="rdf:#$41y0G2"/>
+  </RDF:Description>
+</RDF:RDF>