Project import generated by Copybara.
GitOrigin-RevId: 63746295f1a5ab5a619056791995793d65529e62
diff --git a/node_modules/material-design-lite/src/spinner/spinner.js b/node_modules/material-design-lite/src/spinner/spinner.js
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+/**
+ * @license
+ * Copyright 2015 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(function() {
+ 'use strict';
+
+ /**
+ * Class constructor for Spinner MDL component.
+ * Implements MDL component design pattern defined at:
+ * https://github.com/jasonmayes/mdl-component-design-pattern
+ *
+ * @param {HTMLElement} element The element that will be upgraded.
+ * @constructor
+ */
+ var MaterialSpinner = function MaterialSpinner(element) {
+ this.element_ = element;
+
+ // Initialize instance.
+ this.init();
+ };
+ window['MaterialSpinner'] = MaterialSpinner;
+
+ /**
+ * Store constants in one place so they can be updated easily.
+ *
+ * @enum {string | number}
+ * @private
+ */
+ MaterialSpinner.prototype.Constant_ = {
+ MDL_SPINNER_LAYER_COUNT: 4
+ };
+
+ /**
+ * Store strings for class names defined by this component that are used in
+ * JavaScript. This allows us to simply change it in one place should we
+ * decide to modify at a later date.
+ *
+ * @enum {string}
+ * @private
+ */
+ MaterialSpinner.prototype.CssClasses_ = {
+ MDL_SPINNER_LAYER: 'mdl-spinner__layer',
+ MDL_SPINNER_CIRCLE_CLIPPER: 'mdl-spinner__circle-clipper',
+ MDL_SPINNER_CIRCLE: 'mdl-spinner__circle',
+ MDL_SPINNER_GAP_PATCH: 'mdl-spinner__gap-patch',
+ MDL_SPINNER_LEFT: 'mdl-spinner__left',
+ MDL_SPINNER_RIGHT: 'mdl-spinner__right'
+ };
+
+ /**
+ * Auxiliary method to create a spinner layer.
+ *
+ * @param {number} index Index of the layer to be created.
+ * @public
+ */
+ MaterialSpinner.prototype.createLayer = function(index) {
+ var layer = document.createElement('div');
+ layer.classList.add(this.CssClasses_.MDL_SPINNER_LAYER);
+ layer.classList.add(this.CssClasses_.MDL_SPINNER_LAYER + '-' + index);
+
+ var leftClipper = document.createElement('div');
+ leftClipper.classList.add(this.CssClasses_.MDL_SPINNER_CIRCLE_CLIPPER);
+ leftClipper.classList.add(this.CssClasses_.MDL_SPINNER_LEFT);
+
+ var gapPatch = document.createElement('div');
+ gapPatch.classList.add(this.CssClasses_.MDL_SPINNER_GAP_PATCH);
+
+ var rightClipper = document.createElement('div');
+ rightClipper.classList.add(this.CssClasses_.MDL_SPINNER_CIRCLE_CLIPPER);
+ rightClipper.classList.add(this.CssClasses_.MDL_SPINNER_RIGHT);
+
+ var circleOwners = [leftClipper, gapPatch, rightClipper];
+
+ for (var i = 0; i < circleOwners.length; i++) {
+ var circle = document.createElement('div');
+ circle.classList.add(this.CssClasses_.MDL_SPINNER_CIRCLE);
+ circleOwners[i].appendChild(circle);
+ }
+
+ layer.appendChild(leftClipper);
+ layer.appendChild(gapPatch);
+ layer.appendChild(rightClipper);
+
+ this.element_.appendChild(layer);
+ };
+ MaterialSpinner.prototype['createLayer'] =
+ MaterialSpinner.prototype.createLayer;
+
+ /**
+ * Stops the spinner animation.
+ * Public method for users who need to stop the spinner for any reason.
+ *
+ * @public
+ */
+ MaterialSpinner.prototype.stop = function() {
+ this.element_.classList.remove('is-active');
+ };
+ MaterialSpinner.prototype['stop'] = MaterialSpinner.prototype.stop;
+
+ /**
+ * Starts the spinner animation.
+ * Public method for users who need to manually start the spinner for any reason
+ * (instead of just adding the 'is-active' class to their markup).
+ *
+ * @public
+ */
+ MaterialSpinner.prototype.start = function() {
+ this.element_.classList.add('is-active');
+ };
+ MaterialSpinner.prototype['start'] = MaterialSpinner.prototype.start;
+
+ /**
+ * Initialize element.
+ */
+ MaterialSpinner.prototype.init = function() {
+ if (this.element_) {
+ for (var i = 1; i <= this.Constant_.MDL_SPINNER_LAYER_COUNT; i++) {
+ this.createLayer(i);
+ }
+
+ this.element_.classList.add('is-upgraded');
+ }
+ };
+
+ // The component registers itself. It can assume componentHandler is available
+ // in the global scope.
+ componentHandler.register({
+ constructor: MaterialSpinner,
+ classAsString: 'MaterialSpinner',
+ cssClass: 'mdl-js-spinner',
+ widget: true
+ });
+})();