Project import generated by Copybara.
GitOrigin-RevId: 63746295f1a5ab5a619056791995793d65529e62
diff --git a/node_modules/material-design-lite/src/switch/switch.js b/node_modules/material-design-lite/src/switch/switch.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 Checkbox MDL component.
+ * Implements MDL component design pattern defined at:
+ * https://github.com/jasonmayes/mdl-component-design-pattern
+ *
+ * @constructor
+ * @param {HTMLElement} element The element that will be upgraded.
+ */
+ var MaterialSwitch = function MaterialSwitch(element) {
+ this.element_ = element;
+
+ // Initialize instance.
+ this.init();
+ };
+ window['MaterialSwitch'] = MaterialSwitch;
+
+ /**
+ * Store constants in one place so they can be updated easily.
+ *
+ * @enum {string | number}
+ * @private
+ */
+ MaterialSwitch.prototype.Constant_ = {
+ TINY_TIMEOUT: 0.001
+ };
+
+ /**
+ * 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
+ */
+ MaterialSwitch.prototype.CssClasses_ = {
+ INPUT: 'mdl-switch__input',
+ TRACK: 'mdl-switch__track',
+ THUMB: 'mdl-switch__thumb',
+ FOCUS_HELPER: 'mdl-switch__focus-helper',
+ RIPPLE_EFFECT: 'mdl-js-ripple-effect',
+ RIPPLE_IGNORE_EVENTS: 'mdl-js-ripple-effect--ignore-events',
+ RIPPLE_CONTAINER: 'mdl-switch__ripple-container',
+ RIPPLE_CENTER: 'mdl-ripple--center',
+ RIPPLE: 'mdl-ripple',
+ IS_FOCUSED: 'is-focused',
+ IS_DISABLED: 'is-disabled',
+ IS_CHECKED: 'is-checked'
+ };
+
+ /**
+ * Handle change of state.
+ *
+ * @param {Event} event The event that fired.
+ * @private
+ */
+ MaterialSwitch.prototype.onChange_ = function(event) {
+ this.updateClasses_();
+ };
+
+ /**
+ * Handle focus of element.
+ *
+ * @param {Event} event The event that fired.
+ * @private
+ */
+ MaterialSwitch.prototype.onFocus_ = function(event) {
+ this.element_.classList.add(this.CssClasses_.IS_FOCUSED);
+ };
+
+ /**
+ * Handle lost focus of element.
+ *
+ * @param {Event} event The event that fired.
+ * @private
+ */
+ MaterialSwitch.prototype.onBlur_ = function(event) {
+ this.element_.classList.remove(this.CssClasses_.IS_FOCUSED);
+ };
+
+ /**
+ * Handle mouseup.
+ *
+ * @param {Event} event The event that fired.
+ * @private
+ */
+ MaterialSwitch.prototype.onMouseUp_ = function(event) {
+ this.blur_();
+ };
+
+ /**
+ * Handle class updates.
+ *
+ * @private
+ */
+ MaterialSwitch.prototype.updateClasses_ = function() {
+ this.checkDisabled();
+ this.checkToggleState();
+ };
+
+ /**
+ * Add blur.
+ *
+ * @private
+ */
+ MaterialSwitch.prototype.blur_ = function() {
+ // TODO: figure out why there's a focus event being fired after our blur,
+ // so that we can avoid this hack.
+ window.setTimeout(function() {
+ this.inputElement_.blur();
+ }.bind(this), /** @type {number} */ (this.Constant_.TINY_TIMEOUT));
+ };
+
+ // Public methods.
+
+ /**
+ * Check the components disabled state.
+ *
+ * @public
+ */
+ MaterialSwitch.prototype.checkDisabled = function() {
+ if (this.inputElement_.disabled) {
+ this.element_.classList.add(this.CssClasses_.IS_DISABLED);
+ } else {
+ this.element_.classList.remove(this.CssClasses_.IS_DISABLED);
+ }
+ };
+ MaterialSwitch.prototype['checkDisabled'] =
+ MaterialSwitch.prototype.checkDisabled;
+
+ /**
+ * Check the components toggled state.
+ *
+ * @public
+ */
+ MaterialSwitch.prototype.checkToggleState = function() {
+ if (this.inputElement_.checked) {
+ this.element_.classList.add(this.CssClasses_.IS_CHECKED);
+ } else {
+ this.element_.classList.remove(this.CssClasses_.IS_CHECKED);
+ }
+ };
+ MaterialSwitch.prototype['checkToggleState'] =
+ MaterialSwitch.prototype.checkToggleState;
+
+ /**
+ * Disable switch.
+ *
+ * @public
+ */
+ MaterialSwitch.prototype.disable = function() {
+ this.inputElement_.disabled = true;
+ this.updateClasses_();
+ };
+ MaterialSwitch.prototype['disable'] = MaterialSwitch.prototype.disable;
+
+ /**
+ * Enable switch.
+ *
+ * @public
+ */
+ MaterialSwitch.prototype.enable = function() {
+ this.inputElement_.disabled = false;
+ this.updateClasses_();
+ };
+ MaterialSwitch.prototype['enable'] = MaterialSwitch.prototype.enable;
+
+ /**
+ * Activate switch.
+ *
+ * @public
+ */
+ MaterialSwitch.prototype.on = function() {
+ this.inputElement_.checked = true;
+ this.updateClasses_();
+ };
+ MaterialSwitch.prototype['on'] = MaterialSwitch.prototype.on;
+
+ /**
+ * Deactivate switch.
+ *
+ * @public
+ */
+ MaterialSwitch.prototype.off = function() {
+ this.inputElement_.checked = false;
+ this.updateClasses_();
+ };
+ MaterialSwitch.prototype['off'] = MaterialSwitch.prototype.off;
+
+ /**
+ * Initialize element.
+ */
+ MaterialSwitch.prototype.init = function() {
+ if (this.element_) {
+ this.inputElement_ = this.element_.querySelector('.' +
+ this.CssClasses_.INPUT);
+
+ var track = document.createElement('div');
+ track.classList.add(this.CssClasses_.TRACK);
+
+ var thumb = document.createElement('div');
+ thumb.classList.add(this.CssClasses_.THUMB);
+
+ var focusHelper = document.createElement('span');
+ focusHelper.classList.add(this.CssClasses_.FOCUS_HELPER);
+
+ thumb.appendChild(focusHelper);
+
+ this.element_.appendChild(track);
+ this.element_.appendChild(thumb);
+
+ this.boundMouseUpHandler = this.onMouseUp_.bind(this);
+
+ if (this.element_.classList.contains(
+ this.CssClasses_.RIPPLE_EFFECT)) {
+ this.element_.classList.add(
+ this.CssClasses_.RIPPLE_IGNORE_EVENTS);
+ this.rippleContainerElement_ = document.createElement('span');
+ this.rippleContainerElement_.classList.add(
+ this.CssClasses_.RIPPLE_CONTAINER);
+ this.rippleContainerElement_.classList.add(this.CssClasses_.RIPPLE_EFFECT);
+ this.rippleContainerElement_.classList.add(this.CssClasses_.RIPPLE_CENTER);
+ this.rippleContainerElement_.addEventListener('mouseup', this.boundMouseUpHandler);
+
+ var ripple = document.createElement('span');
+ ripple.classList.add(this.CssClasses_.RIPPLE);
+
+ this.rippleContainerElement_.appendChild(ripple);
+ this.element_.appendChild(this.rippleContainerElement_);
+ }
+
+ this.boundChangeHandler = this.onChange_.bind(this);
+ this.boundFocusHandler = this.onFocus_.bind(this);
+ this.boundBlurHandler = this.onBlur_.bind(this);
+
+ this.inputElement_.addEventListener('change', this.boundChangeHandler);
+ this.inputElement_.addEventListener('focus', this.boundFocusHandler);
+ this.inputElement_.addEventListener('blur', this.boundBlurHandler);
+ this.element_.addEventListener('mouseup', this.boundMouseUpHandler);
+
+ this.updateClasses_();
+ this.element_.classList.add('is-upgraded');
+ }
+ };
+
+ // The component registers itself. It can assume componentHandler is available
+ // in the global scope.
+ componentHandler.register({
+ constructor: MaterialSwitch,
+ classAsString: 'MaterialSwitch',
+ cssClass: 'mdl-js-switch',
+ widget: true
+ });
+})();