Project import generated by Copybara.
GitOrigin-RevId: 63746295f1a5ab5a619056791995793d65529e62
diff --git a/node_modules/material-design-lite/src/tooltip/tooltip.js b/node_modules/material-design-lite/src/tooltip/tooltip.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 Tooltip 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 MaterialTooltip = function MaterialTooltip(element) {
+ this.element_ = element;
+
+ // Initialize instance.
+ this.init();
+ };
+ window['MaterialTooltip'] = MaterialTooltip;
+
+ /**
+ * Store constants in one place so they can be updated easily.
+ *
+ * @enum {string | number}
+ * @private
+ */
+ MaterialTooltip.prototype.Constant_ = {
+ // None for now.
+ };
+
+ /**
+ * 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
+ */
+ MaterialTooltip.prototype.CssClasses_ = {
+ IS_ACTIVE: 'is-active',
+ BOTTOM: 'mdl-tooltip--bottom',
+ LEFT: 'mdl-tooltip--left',
+ RIGHT: 'mdl-tooltip--right',
+ TOP: 'mdl-tooltip--top'
+ };
+
+ /**
+ * Handle mouseenter for tooltip.
+ *
+ * @param {Event} event The event that fired.
+ * @private
+ */
+ MaterialTooltip.prototype.handleMouseEnter_ = function(event) {
+ var props = event.target.getBoundingClientRect();
+ var left = props.left + (props.width / 2);
+ var top = props.top + (props.height / 2);
+ var marginLeft = -1 * (this.element_.offsetWidth / 2);
+ var marginTop = -1 * (this.element_.offsetHeight / 2);
+
+ if (this.element_.classList.contains(this.CssClasses_.LEFT) || this.element_.classList.contains(this.CssClasses_.RIGHT)) {
+ left = (props.width / 2);
+ if (top + marginTop < 0) {
+ this.element_.style.top = '0';
+ this.element_.style.marginTop = '0';
+ } else {
+ this.element_.style.top = top + 'px';
+ this.element_.style.marginTop = marginTop + 'px';
+ }
+ } else {
+ if (left + marginLeft < 0) {
+ this.element_.style.left = '0';
+ this.element_.style.marginLeft = '0';
+ } else {
+ this.element_.style.left = left + 'px';
+ this.element_.style.marginLeft = marginLeft + 'px';
+ }
+ }
+
+ if (this.element_.classList.contains(this.CssClasses_.TOP)) {
+ this.element_.style.top = props.top - this.element_.offsetHeight - 10 + 'px';
+ } else if (this.element_.classList.contains(this.CssClasses_.RIGHT)) {
+ this.element_.style.left = props.left + props.width + 10 + 'px';
+ } else if (this.element_.classList.contains(this.CssClasses_.LEFT)) {
+ this.element_.style.left = props.left - this.element_.offsetWidth - 10 + 'px';
+ } else {
+ this.element_.style.top = props.top + props.height + 10 + 'px';
+ }
+
+ this.element_.classList.add(this.CssClasses_.IS_ACTIVE);
+ };
+
+ /**
+ * Hide tooltip on mouseleave or scroll
+ *
+ * @private
+ */
+ MaterialTooltip.prototype.hideTooltip_ = function() {
+ this.element_.classList.remove(this.CssClasses_.IS_ACTIVE);
+ };
+
+ /**
+ * Initialize element.
+ */
+ MaterialTooltip.prototype.init = function() {
+
+ if (this.element_) {
+ var forElId = this.element_.getAttribute('for') ||
+ this.element_.getAttribute('data-mdl-for');
+
+ if (forElId) {
+ this.forElement_ = document.getElementById(forElId);
+ }
+
+ if (this.forElement_) {
+ // It's left here because it prevents accidental text selection on Android
+ if (!this.forElement_.hasAttribute('tabindex')) {
+ this.forElement_.setAttribute('tabindex', '0');
+ }
+
+ this.boundMouseEnterHandler = this.handleMouseEnter_.bind(this);
+ this.boundMouseLeaveAndScrollHandler = this.hideTooltip_.bind(this);
+ this.forElement_.addEventListener('mouseenter', this.boundMouseEnterHandler, false);
+ this.forElement_.addEventListener('touchend', this.boundMouseEnterHandler, false);
+ this.forElement_.addEventListener('mouseleave', this.boundMouseLeaveAndScrollHandler, false);
+ window.addEventListener('scroll', this.boundMouseLeaveAndScrollHandler, true);
+ window.addEventListener('touchstart', this.boundMouseLeaveAndScrollHandler);
+ }
+ }
+ };
+
+ // The component registers itself. It can assume componentHandler is available
+ // in the global scope.
+ componentHandler.register({
+ constructor: MaterialTooltip,
+ classAsString: 'MaterialTooltip',
+ cssClass: 'mdl-tooltip'
+ });
+})();