Import Polymer 0.8 and several key elements.

third_party/polymer/v0_8/components-chromium/polymer/src/standard/styling-extracted.js

Index: third_party/polymer/v0_8/components-chromium/polymer/src/standard/styling-extracted.js
diff --git a/third_party/polymer/v0_8/components-chromium/polymer/src/standard/styling-extracted.js b/third_party/polymer/v0_8/components-chromium/polymer/src/standard/styling-extracted.js
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index 0000000000000000000000000000000000000000..6408590ec4ab828cf03c76e0ddd82dda6708d804
--- /dev/null
+++ b/third_party/polymer/v0_8/components-chromium/polymer/src/standard/styling-extracted.js
@@ -0,0 +1,179 @@
+
+
+  (function() {
+
+    var prepTemplate = Polymer.Base._prepTemplate;
+    var prepElement = Polymer.Base._prepElement;
+    var baseStampTemplate = Polymer.Base._stampTemplate;
+    var nativeShadow = Polymer.Settings.useNativeShadow;
+
+    Polymer.Base._addFeature({
+
+      // declaration-y
+      _prepTemplate: function() {
+        prepTemplate.call(this);
+        var port = Polymer.DomModule.import(this.is);
+        if (this._encapsulateStyle === undefined) {
+          this._encapsulateStyle = 
+            Boolean(port && !nativeShadow);
+        }
+        // scope css
+        // NOTE: dom scoped via annotations
+        if (nativeShadow || this._encapsulateStyle) {
+          this._scopeCss();
+        }
+      },
+
+      _prepElement: function(element) {
+        if (this._encapsulateStyle) {
+          Polymer.StyleTransformer.element(element, this.is,
+            this._scopeCssViaAttr);
+        }
+        prepElement.call(this, element);
+      },
+
+      _scopeCss: function() {
+        this._styles = this._prepareStyles();
+        this._scopeStyles(this._styles);
+      },
+
+      // search for extra style modules via `styleModules`
+      _prepareStyles: function() {
+        var cssText = '', m$ = this.styleModules;
+        if (m$) {
+          for (var i=0, l=m$.length, m; (i<l) && (m=m$[i]); i++) {
+            cssText += this._cssFromModule(m);
+          }
+        }
+        cssText += this._cssFromModule(this.is);
+        var styles = [];
+        if (cssText) {
+          var s = document.createElement('style');
+          s.textContent = cssText;  
+          styles.push(s);
+        }
+        return styles;
+      },
+
+      // returns cssText of styles in a given module; also un-applies any
+      // styles that apply to the document.
+      _cssFromModule: function(moduleId) {
+        var m = Polymer.DomModule.import(moduleId);
+        if (m && !m._cssText) {
+          var cssText = '';
+          var e$ = Array.prototype.slice.call(m.querySelectorAll('style'));
+          this._unapplyStyles(e$);
+          e$ = e$.concat(Array.prototype.map.call(
+            m.querySelectorAll(REMOTE_SHEET_SELECTOR), function(l) {
+              return l.import.body;
+            }));
+          m._cssText = this._cssFromStyles(e$);
+        }
+        return m && m._cssText || '';
+      },
+
+      _cssFromStyles: function(styles) {
+        var cssText = '';
+        for (var i=0, l=styles.length, s; (i<l) && (s = styles[i]); i++) {
+          if (s && s.textContent) {
+            cssText += 
+              Polymer.ResolveUrl.resolveCss(s.textContent, s.ownerDocument);
+          }
+        }
+        return cssText;
+      },
+
+      _unapplyStyles: function(styles) {
+        for (var i=0, l=styles.length, s; (i<l) && (s = styles[i]); i++) {
+          s = s.__appliedElement || s;
+          s.parentNode.removeChild(s);
+        }
+      },
+
+      _scopeStyles: function(styles) {
+        for (var i=0, l=styles.length, s; (i<l) && (s=styles[i]); i++) {
+          // transform style if necessary and place in correct place
+          if (nativeShadow) {
+            if (this._template) {
+              this._template.content.appendChild(s);
+            }
+          } else {
+            var rules = this._rulesForStyle(s);
+            Polymer.StyleUtil.applyCss(
+              Polymer.StyleTransformer.css(rules, this.is, this.extends, 
+              null, this._scopeCssViaAttr), 
+              this.is, null, true);
+          }
+        }
+      },
+
+      _rulesForStyle: function(style) {
+        if (!style.__cssRules) {
+          style.__cssRules = Polymer.StyleUtil.parser.parse(style.textContent);
+        }
+        return style.__cssRules;
+      },
+
+      // instance-y
+      _stampTemplate: function() {
+        if (this._encapsulateStyle) {
+          Polymer.StyleTransformer.host(this, this.is);
+        }
+        baseStampTemplate.call(this);
+      },
+
+      // add scoping class whenever an element is added to localDOM
+      _elementAdd: function(node) {
+        if (this._encapsulateStyle && !node.__styleScoped) {
+          Polymer.StyleTransformer.dom(node, this.is, this._scopeCssViaAttr);
+        }
+      },
+
+      // remove scoping class whenever an element is removed from localDOM
+      _elementRemove: function(node) {
+        if (this._encapsulateStyle) {
+          Polymer.StyleTransformer.dom(node, this.is, this._scopeCssViaAttr, true);
+        }
+      },
+
+      /**
+       * Apply style scoping to the specified `container` and all its 
+       * descendants. If `shoudlObserve` is true, changes to the container are
+       * monitored via mutation observer and scoping is applied.
+       */
+      scopeSubtree: function(container, shouldObserve) {
+        if (nativeShadow) {
+          return;
+        }
+        var self = this;
+        var scopify = function(node) {
+          if (node.nodeType === Node.ELEMENT_NODE) {
+            node.className = self._scopeElementClass(node, node.className);
+            var n$ = node.querySelectorAll('*');
+            Array.prototype.forEach.call(n$, function(n) {
+              n.className = self._scopeElementClass(n, n.className);
+            });
+          }
+        };
+        scopify(container);
+        if (shouldObserve) {
+          var mo = new MutationObserver(function(mxns) {
+            mxns.forEach(function(m) {
+              if (m.addedNodes) {
+                for (var i=0; i < m.addedNodes.length; i++) {
+                  scopify(m.addedNodes[i]);
+                }
+              }
+            });
+          });
+          mo.observe(container, {childList: true, subtree: true});
+          return mo;
+        }
+      }
+
+    });
+
+    var REMOTE_SHEET_SELECTOR = 'link[rel=import][type~=css]';
+
+  })();
+