1 files changed, 196 insertions, 0 deletions
diff --git a/chromium/third_party/catapult/third_party/polymer2/bower_components/shadycss/entrypoints/apply-shim.js b/chromium/third_party/catapult/third_party/polymer2/bower_components/shadycss/entrypoints/apply-shim.js
new file mode 100644
index 00000000000..66372fffa9f
--- /dev/null
+++ b/chromium/third_party/catapult/third_party/polymer2/bower_components/shadycss/entrypoints/apply-shim.js
@@ -0,0 +1,196 @@
+/**
+@license
+Copyright (c) 2017 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
+*/
+
+'use strict';
+
+import ApplyShim from '../src/apply-shim.js';
+import templateMap from '../src/template-map.js';
+import {getIsExtends, toCssText} from '../src/style-util.js';
+import * as ApplyShimUtils from '../src/apply-shim-utils.js';
+import {getComputedStyleValue, updateNativeProperties} from '../src/common-utils.js';
+import {CustomStyleInterfaceInterface} from '../src/custom-style-interface.js'; // eslint-disable-line no-unused-vars
+import {nativeCssVariables, nativeShadow} from '../src/style-settings.js';
+
+/** @const {ApplyShim} */
+const applyShim = new ApplyShim();
+
+class ApplyShimInterface {
+  constructor() {
+    /** @type {?CustomStyleInterfaceInterface} */
+    this.customStyleInterface = null;
+    applyShim['invalidCallback'] = ApplyShimUtils.invalidate;
+  }
+  ensure() {
+    if (this.customStyleInterface) {
+      return;
+    }
+    this.customStyleInterface = window.ShadyCSS.CustomStyleInterface;
+    if (this.customStyleInterface) {
+      this.customStyleInterface['transformCallback'] = (style) => {
+        applyShim.transformCustomStyle(style);
+      };
+      this.customStyleInterface['validateCallback'] = () => {
+        requestAnimationFrame(() => {
+          if (this.customStyleInterface['enqueued']) {
+            this.flushCustomStyles();
+          }
+        });
+      }
+    }
+  }
+  /**
+   * @param {!HTMLTemplateElement} template
+   * @param {string} elementName
+   */
+  prepareTemplate(template, elementName) {
+    this.ensure();
+    templateMap[elementName] = template;
+    let ast = applyShim.transformTemplate(template, elementName);
+    // save original style ast to use for revalidating instances
+    template['_styleAst'] = ast;
+  }
+  flushCustomStyles() {
+    this.ensure();
+    if (!this.customStyleInterface) {
+      return;
+    }
+    let styles = this.customStyleInterface['processStyles']();
+    if (!this.customStyleInterface['enqueued']) {
+      return;
+    }
+    for (let i = 0; i < styles.length; i++ ) {
+      let cs = styles[i];
+      let style = this.customStyleInterface['getStyleForCustomStyle'](cs);
+      if (style) {
+        applyShim.transformCustomStyle(style);
+      }
+    }
+    this.customStyleInterface['enqueued'] = false;
+  }
+  /**
+   * @param {HTMLElement} element
+   * @param {Object=} properties
+   */
+  styleSubtree(element, properties) {
+    this.ensure();
+    if (properties) {
+      updateNativeProperties(element, properties);
+    }
+    if (element.shadowRoot) {
+      this.styleElement(element);
+      let shadowChildren = element.shadowRoot.children || element.shadowRoot.childNodes;
+      for (let i = 0; i < shadowChildren.length; i++) {
+        this.styleSubtree(/** @type {HTMLElement} */(shadowChildren[i]));
+      }
+    } else {
+      let children = element.children || element.childNodes;
+      for (let i = 0; i < children.length; i++) {
+        this.styleSubtree(/** @type {HTMLElement} */(children[i]));
+      }
+    }
+  }
+  /**
+   * @param {HTMLElement} element
+   */
+  styleElement(element) {
+    this.ensure();
+    let {is} = getIsExtends(element);
+    let template = templateMap[is];
+    if (template && !ApplyShimUtils.templateIsValid(template)) {
+      // only revalidate template once
+      if (!ApplyShimUtils.templateIsValidating(template)) {
+        this.prepareTemplate(template, is);
+        ApplyShimUtils.startValidatingTemplate(template);
+      }
+      // update this element instance
+      let root = element.shadowRoot;
+      if (root) {
+        let style = /** @type {HTMLStyleElement} */(root.querySelector('style'));
+        if (style) {
+          // reuse the template's style ast, it has all the original css text
+          style['__cssRules'] = template['_styleAst'];
+          style.textContent = toCssText(template['_styleAst'])
+        }
+      }
+    }
+  }
+  /**
+   * @param {Object=} properties
+   */
+  styleDocument(properties) {
+    this.ensure();
+    this.styleSubtree(document.body, properties);
+  }
+}
+
+if (!window.ShadyCSS || !window.ShadyCSS.ScopingShim) {
+  const applyShimInterface = new ApplyShimInterface();
+  let CustomStyleInterface = window.ShadyCSS && window.ShadyCSS.CustomStyleInterface;
+
+  /** @suppress {duplicate} */
+  window.ShadyCSS = {
+    /**
+     * @param {!HTMLTemplateElement} template
+     * @param {string} elementName
+     * @param {string=} elementExtends
+     */
+    prepareTemplate(template, elementName, elementExtends) { // eslint-disable-line no-unused-vars
+      applyShimInterface.flushCustomStyles();
+      applyShimInterface.prepareTemplate(template, elementName)
+    },
+
+    /**
+     * @param {!HTMLElement} element
+     * @param {Object=} properties
+     */
+    styleSubtree(element, properties) {
+      applyShimInterface.flushCustomStyles();
+      applyShimInterface.styleSubtree(element, properties);
+    },
+
+    /**
+     * @param {!HTMLElement} element
+     */
+    styleElement(element) {
+      applyShimInterface.flushCustomStyles();
+      applyShimInterface.styleElement(element);
+    },
+
+    /**
+     * @param {Object=} properties
+     */
+    styleDocument(properties) {
+      applyShimInterface.flushCustomStyles();
+      applyShimInterface.styleDocument(properties);
+    },
+
+    /**
+     * @param {Element} element
+     * @param {string} property
+     * @return {string}
+     */
+    getComputedStyleValue(element, property) {
+      return getComputedStyleValue(element, property);
+    },
+
+    flushCustomStyles() {
+      applyShimInterface.flushCustomStyles();
+    },
+
+    nativeCss: nativeCssVariables,
+    nativeShadow: nativeShadow
+  };
+
+  if (CustomStyleInterface) {
+    window.ShadyCSS.CustomStyleInterface = CustomStyleInterface;
+  }
+}
+
+window.ShadyCSS.ApplyShim = applyShim;