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build/node_modules/vulcanize/lib/matchers.js

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+/**
+ * @license
+ * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
+ * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+ * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+ * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+ * Code distributed by Google as part of the polymer project is also
+ * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+ */
+
+// jshint node: true
+'use strict';
+
+var constants = require('./constants');
+var dom5 = require('dom5');
+var p = dom5.predicates;
+
+var urlAttrMatchers = constants.URL_ATTR.map(function(attr) {
+  return p.hasAttr(attr);
+});
+
+var urlAttrs = p.OR.apply(null, urlAttrMatchers);
+
+var jsMatcher = p.AND(
+  p.hasTagName('script'),
+  p.OR(
+    p.NOT(
+      p.hasAttr('type')
+    ),
+    p.hasAttrValue('type', 'text/javascript'),
+    p.hasAttrValue('type', 'application/javascript')
+  )
+);
+
+var externalStyle = p.AND(
+  p.hasTagName('link'),
+  p.hasAttrValue('rel', 'stylesheet')
+);
+  // polymer specific external stylesheet
+var polymerExternalStyle = p.AND(
+  p.hasTagName('link'),
+  p.hasAttrValue('rel', 'import'),
+  p.hasAttrValue('type', 'css')
+);
+
+var htmlImport = p.AND(
+  p.hasTagName('link'),
+  p.hasAttrValue('rel', 'import'),
+  p.OR(
+    p.NOT(p.hasAttr('type')),
+    p.hasAttrValue('type', 'text/html')
+  )
+);
+
+var styleMatcher = p.AND(
+  p.hasTagName('style'),
+  p.OR(
+    p.NOT(
+      p.hasAttr('type')
+    ),
+    p.hasAttrValue('type', 'text/css')
+  )
+);
+
+var targetMatcher = p.AND(
+  p.OR(
+    p.hasTagName('a'),
+    p.hasTagName('form')
+  ),
+  p.NOT(p.hasAttr('target'))
+);
+
+module.exports = {
+  head: p.hasTagName('head'),
+  body: p.hasTagName('body'),
+  base: p.hasTagName('base'),
+  domModule: p.AND(
+    p.hasTagName('dom-module'),
+    p.hasAttr('id'),
+    p.NOT(
+      p.hasAttr('assetpath')
+    )
+  ),
+  meta: p.AND(
+    p.hasTagName('meta'),
+    p.hasAttr('charset')
+  ),
+  polymerElement: p.hasTagName('polymer-element'),
+  urlAttrs: urlAttrs,
+  targetMatcher: targetMatcher,
+  polymerExternalStyle: polymerExternalStyle,
+  htmlImport: htmlImport,
+  JS: jsMatcher,
+  CSS: styleMatcher,
+  CSS_LINK: externalStyle,
+  POLY_CSS_LINK: polymerExternalStyle,
+  ALL_CSS_LINK: p.OR(externalStyle, polymerExternalStyle),
+  JS_SRC: p.AND(p.hasAttr('src'), jsMatcher),
+  JS_INLINE: p.AND(p.NOT(p.hasAttr('src')), jsMatcher)
+};