Added base template for config ui.

appengine/config_service/ui/bower_components/polymer/lib/legacy/polymer.dom.html

+<!--
+@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
+-->
+<link rel="import" href="../utils/boot.html">
+<link rel="import" href="../utils/flattened-nodes-observer.html">
+<link rel="import" href="../utils/flush.html">
+<script>
+(function() {
+  'use strict';
+
+  const p = Element.prototype;
+  const normalizedMatchesSelector = p.matches || p.matchesSelector ||
+    p.mozMatchesSelector || p.msMatchesSelector ||
+    p.oMatchesSelector || p.webkitMatchesSelector;
+
+  /**
+   * Cross-platform `element.matches` shim.
+   *
+   * @function matchesSelector
+   * @memberof Polymer.dom
+   * @param {Node} node Node to check selector against
+   * @param {string} selector Selector to match
+   * @return {boolean} True if node matched selector
+   */
+  const matchesSelector = function(node, selector) {
+    return normalizedMatchesSelector.call(node, selector);
+  }
+
+  /**
+   * Node API wrapper class returned from `Polymer.dom.(target)` when
+   * `target` is a `Node`.
+   */
+  class DomApi {
+
+    constructor(node) {
+      this.node = node;
+    }
+
+    /**
+     * Returns an instance of `Polymer.FlattenedNodesObserver` that
+     * listens for node changes on this element.
+     *
+     * @param {Function} callback Called when direct or distributed children
+     *   of this element changes
+     * @return {Polymer.FlattenedNodesObserver} Observer instance
+     */
+    observeNodes(callback) {
+      return new Polymer.FlattenedNodesObserver(this.node, callback);
+    }
+
+    /**
+     * Disconnects an observer previously created via `observeNodes`
+     *
+     * @param {Polymer.FlattenedNodesObserver} observerHandle Observer instance
+     *   to disconnect.
+     */
+    unobserveNodes(observerHandle) {
+      observerHandle.disconnect();
+    }
+
+    /**
+     * Provided as a backwards-compatible API only.  This method does nothing.
+     */
+    notifyObserver() {}
+
+    /**
+     * Returns true if the provided node is contained with this element's
+     * light-DOM children or shadow root, including any nested shadow roots
+     * of children therein.
+     *
+     * @param {Node} node Node to test
+     * @return {boolean} Returns true if the given `node` is contained within
+     *   this element's light or shadow DOM.
+     */
+    deepContains(node) {
+      if (this.node.contains(node)) {
+        return true;
+      }
+      let n = node;
+      let doc = node.ownerDocument;
+      // walk from node to `this` or `document`
+      while (n && n !== doc && n !== this.node) {
+        // use logical parentnode, or native ShadowRoot host
+        n = n.parentNode || n.host;
+      }
+      return n === this.node;
+    }
+
+    /**
+     * Returns the root node of this node.  Equivalent to `getRoodNode()`.
+     *
+     * @return {Node} Top most element in the dom tree in which the node
+     * exists. If the node is connected to a document this is either a
+     * shadowRoot or the document; otherwise, it may be the node
+     * itself or a node or document fragment containing it.
+     */
+    getOwnerRoot() {
+      return this.node.getRootNode();
+    }
+
+    /**
+     * For slot elements, returns the nodes assigned to the slot; otherwise
+     * an empty array. It is equivalent to `<slot>.addignedNodes({flatten:true})`.
+     *
+     * @return {Array<Node>} Array of assigned nodes
+     */
+    getDistributedNodes() {
+      return (this.node.localName === 'slot') ?
+        this.node.assignedNodes({flatten: true}) :
+        [];
+    }
+
+    /**
+     * Returns an array of all slots this element was distributed to.
+     *
+     * @return {Array<HTMLSlotElement>} Description
+     */
+    getDestinationInsertionPoints() {
+      let ip$ = [];
+      let n = this.node.assignedSlot;
+      while (n) {
+        ip$.push(n);
+        n = n.assignedSlot;
+      }
+      return ip$;
+    }
+
+    /**
+     * Calls `importNode` on the `ownerDocument` for this node.
+     *
+     * @param {Node} node Node to import
+     * @param {boolean} deep True if the node should be cloned deeply during
+     *   import
+     * @return {Node} Clone of given node imported to this owner document
+     */
+    importNode(node, deep) {
+      let doc = this.node instanceof Document ? this.node :
+        this.node.ownerDocument;
+      return doc.importNode(node, deep);
+    }
+
+    /**
+     * Returns a flattened list of all child nodes and nodes distributed
+     * to child slots.
+     *
+     * @return {type} Description
+     */
+    getEffectiveChildNodes() {
+      return Polymer.FlattenedNodesObserver.getFlattenedNodes(this.node);
+    }
+
+    /**
+     * Returns a filtered list of flattened child elements for this element based
+     * on the given selector.
+     *
+     * @param {string} selector Selector to filter nodes against
+     * @return {Array<HTMLElement>} List of flattened child elements
+     */
+    queryDistributedElements(selector) {
+      let c$ = this.getEffectiveChildNodes();
+      let list = [];
+      for (let i=0, l=c$.length, c; (i<l) && (c=c$[i]); i++) {
+        if ((c.nodeType === Node.ELEMENT_NODE) &&
+            matchesSelector(c, selector)) {
+          list.push(c);
+        }
+      }
+      return list;
+    }
+
+    /**
+     * For shadow roots, returns the currently focused element within this
+     * shadow root.
+     *
+     * @return {Node|undefined} Currently focused element
+     */
+    get activeElement() {
+      let node = this.node;
+      return node._activeElement !== undefined ? node._activeElement : node.activeElement;
+    }
+  }
+
+  function forwardMethods(proto, methods) {
+    for (let i=0; i < methods.length; i++) {
+      let method = methods[i];
+      proto[method] = function() {
+        return this.node[method].apply(this.node, arguments);
+      }
+    }
+  }
+
+  function forwardReadOnlyProperties(proto, properties) {
+    for (let i=0; i < properties.length; i++) {
+      let name = properties[i];
+      Object.defineProperty(proto, name, {
+        get: function() {
+          return this.node[name];
+        },
+        configurable: true
+      });
+    }
+  }
+
+  function forwardProperties(proto, properties) {
+    for (let i=0; i < properties.length; i++) {
+      let name = properties[i];
+      Object.defineProperty(proto, name, {
+        get: function() {
+          return this.node[name];
+        },
+        set: function(value) {
+          this.node[name] = value;
+        },
+        configurable: true
+      });
+    }
+  }
+
+  forwardMethods(DomApi.prototype, [
+    'cloneNode', 'appendChild', 'insertBefore', 'removeChild',
+    'replaceChild', 'setAttribute', 'removeAttribute',
+    'querySelector', 'querySelectorAll'
+  ]);
+
+  forwardReadOnlyProperties(DomApi.prototype, [
+    'parentNode', 'firstChild', 'lastChild',
+    'nextSibling', 'previousSibling', 'firstElementChild',
+    'lastElementChild', 'nextElementSibling', 'previousElementSibling',
+    'childNodes', 'children', 'classList'
+  ]);
+
+  forwardProperties(DomApi.prototype, [
+    'textContent', 'innerHTML'
+  ]);
+
+
+  /**
+   * Event API wrapper class returned from `Polymer.dom.(target)` when
+   * `target` is an `Event`.
+   */
+  class EventApi {
+    constructor(event) {
+      this.event = event;
+    }
+
+    /**
+     * Returns the first node on the `composedPath` of this event.
+     *
+     * @return {Node} The node this event was dispatched to
+     */
+    get rootTarget() {
+      return this.event.composedPath()[0];
+    }
+
+    /**
+     * Returns the local (re-targeted) target for this event.
+     *
+     * @return {Node} The local (re-targeted) target for this event.
+     */
+    get localTarget() {
+      return this.event.target;
+    }
+
+    /**
+     * Returns the `composedPath` for this event.
+     */
+    get path() {
+      return this.event.composedPath();
+    }
+  }
+
+  /**
+   * Legacy DOM and Event manipulation API wrapper factory used to abstract
+   * differences between native Shadow DOM and "Shady DOM" when polyfilling on
+   * older browsers.
+   *
+   * Note that in Polymer 2.x use of `Polymer.dom` is no longer required and
+   * in the majority of cases simply facades directly to the standard native
+   * API.
+   *
+   * @namespace
+   * @summary Legacy DOM and Event manipulation API wrapper factory used to
+   * abstract differences between native Shadow DOM and "Shady DOM."
+   * @memberof Polymer
+   * @param {Node|Event} obj Node or event to operate on
+   * @return {DomApi|EventApi} Wrapper providing either node API or event API
+   */
+  Polymer.dom = function(obj) {
+    obj = obj || document;
+    let ctor = obj instanceof Event ? EventApi : DomApi;
+    if (!obj.__domApi) {
+      obj.__domApi = new ctor(obj);
+    }
+    return obj.__domApi;
+  };
+
+  Polymer.dom.matchesSelector = matchesSelector;
+
+  /**
+   * Forces several classes of asynchronously queued tasks to flush:
+   * - Debouncers added via `Polymer.enqueueDebouncer`
+   * - ShadyDOM distribution
+   *
+   * This method facades to `Polymer.flush`.
+   *
+   * @memberof Polymer.dom
+   */
+  Polymer.dom.flush = Polymer.flush;
+
+  /**
+   * Adds a `Polymer.Debouncer` to a list of globally flushable tasks.
+   *
+   * This method facades to `Polymer.enqueueDebouncer`.
+   *
+   * @memberof Polymer.dom
+   * @param {Polymer.Debouncer} debouncer Debouncer to enqueue
+   */
+  Polymer.dom.addDebouncer = Polymer.enqueueDebouncer;
+
+  // expose BC settings.
+  let settings = Polymer.Settings || {};
+  settings.useShadow = !(window.ShadyDOM);
+  settings.useNativeCSSProperties =
+    Boolean(!window.ShadyCSS || window.ShadyCSS.nativeCss);
+  settings.useNativeCustomElements =
+    !(window.customElements.polyfillWrapFlushCallback);
+  Polymer.Settings = settings;
+
+})();
+</script>