Added base template for config ui.

appengine/config_service/ui/bower_components/polymer/lib/legacy/templatizer-behavior.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/templatize.html">
+
+<script>
+  (function() {
+    'use strict';
+
+    /**
+     * The `Polymer.Templatizer` behavior adds methods to generate instances of
+     * templates that are each managed by an anonymous `Polymer.PropertyEffects`
+     * instance where data-bindings in the stamped template content are bound to
+     * accessors on itself.
+     *
+     * This behavior is provided in Polymer 2.x as a hybrid-element convenience
+     * only.  For non-hybrid usage, the `Polymer.Templatize` library
+     * should be used instead.
+     *
+     * Example:
+     *
+     *     // Get a template from somewhere, e.g. light DOM
+     *     let template = this.querySelector('template');
+     *     // Prepare the template
+     *     this.templatize(template);
+     *     // Instance the template with an initial data model
+     *     let instance = this.stamp({myProp: 'initial'});
+     *     // Insert the instance's DOM somewhere, e.g. light DOM
+     *     Polymer.dom(this).appendChild(instance.root);
+     *     // Changing a property on the instance will propagate to bindings
+     *     // in the template
+     *     instance.myProp = 'new value';
+     *
+     * Users of `Templatizer` may need to implement the following abstract
+     * API's to determine how properties and paths from the host should be
+     * forwarded into to instances:
+     *
+     *     _forwardHostPropV2: function(prop, value)
+     *
+     * Likewise, users may implement these additional abstract API's to determine
+     * how instance-specific properties that change on the instance should be
+     * forwarded out to the host, if necessary.
+     *
+     *     _notifyInstancePropV2: function(inst, prop, value)
+     *
+     * In order to determine which properties are instance-specific and require
+     * custom notification via `_notifyInstanceProp`, define an `_instanceProps`
+     * object containing keys for each instance prop, for example:
+     *
+     *     _instanceProps: {
+     *       item: true,
+     *       index: true
+     *     }
+     *
+     * Any properties used in the template that are not defined in _instanceProp
+     * will be forwarded out to the Templatize `owner` automatically.
+     *
+     * Users may also implement the following abstract function to show or
+     * hide any DOM generated using `stamp`:
+     *
+     *     _showHideChildren: function(shouldHide)
+     *
+     * Note that some callbacks are suffixed with `V2` in the Polymer 2.x behavior
+     * as the implementations will need to differ from the callbacks required
+     * by the 1.x Templatizer API due to changes in the `TemplateInstance` API
+     * between versions 1.x and 2.x.
+     *
+     * @polymerBehavior
+     * @memberof Polymer
+     */
+    let Templatizer = {
+
+      /**
+       * Generates an anonymous `TemplateInstance` class (stored as `this.ctor`)
+       * for the provided template.  This method should be called once per
+       * template to prepare an element for stamping the template, followed
+       * by `stamp` to create new instances of the template.
+       *
+       * @param {HTMLTemplateElement} template Template to prepare
+       * @param {boolean=} mutableData When `true`, the generated class will skip
+       *   strict dirty-checking for objects and arrays (always consider them to
+       *   be "dirty"). Defaults to false.
+       */
+      templatize(template, mutableData) {
+        this._templatizerTemplate = template;
+        this.ctor = Polymer.Templatize.templatize(template, this, {
+          mutableData: Boolean(mutableData),
+          parentModel: this._parentModel,
+          instanceProps: this._instanceProps,
+          forwardHostProp: this._forwardHostPropV2,
+          notifyInstanceProp: this._notifyInstancePropV2
+        });
+      },
+
+      /**
+       * Creates an instance of the template prepared by `templatize`.  The object
+       * returned is an instance of the anonymous class generated by `templatize`
+       * whose `root` property is a document fragment containing newly cloned
+       * template content, and which has property accessors corresponding to
+       * properties referenced in template bindings.
+       *
+       * @param {Object=} model Object containing initial property values to
+       *   populate into the template bindings.
+       * @return {TemplateInstanceBase} Returns the created instance of
+       * the template prepared by `templatize`.
+       */
+      stamp(model) {
+        return new this.ctor(model);
+      },
+
+      /**
+       * Returns the template "model" (`TemplateInstance`) associated with
+       * a given element, which serves as the binding scope for the template
+       * instance the element is contained in.  A template model should be used
+       * to manipulate data associated with this template instance.
+       *
+       * @param {HTMLElement} el Element for which to return a template model.
+       * @return {TemplateInstanceBase} Model representing the binding scope for
+       *   the element.
+       */
+      modelForElement(el) {
+        return Polymer.Templatize.modelForElement(this._templatizerTemplate, el);
+      }
+    };
+
+    Polymer.Templatizer = Templatizer;
+
+  })();
+</script>