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carbon-components

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Carbon Components is a component library for IBM Cloud

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var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; var _triggerButtonPositio, _triggerButtonPositio2; function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } import settings from '../../globals/js/settings'; import mixin from '../../globals/js/misc/mixin'; import createComponent from '../../globals/js/mixins/create-component'; import initComponentBySearch from '../../globals/js/mixins/init-component-by-search'; import eventedShowHideState from '../../globals/js/mixins/evented-show-hide-state'; import handles from '../../globals/js/mixins/handles'; import FloatingMenu, { DIRECTION_TOP, DIRECTION_BOTTOM } from '../floating-menu/floating-menu'; import getLaunchingDetails from '../../globals/js/misc/get-launching-details'; import on from '../../globals/js/misc/on'; /** * The CSS property names of the arrow keyed by the floating menu direction. * @type {Object<string, string>} */ var triggerButtonPositionProps = (_triggerButtonPositio = {}, _defineProperty(_triggerButtonPositio, DIRECTION_TOP, 'bottom'), _defineProperty(_triggerButtonPositio, DIRECTION_BOTTOM, 'top'), _triggerButtonPositio); /** * Determines how the position of arrow should affect the floating menu position. * @type {Object<string, number>} */ var triggerButtonPositionFactors = (_triggerButtonPositio2 = {}, _defineProperty(_triggerButtonPositio2, DIRECTION_TOP, -2), _defineProperty(_triggerButtonPositio2, DIRECTION_BOTTOM, -1), _triggerButtonPositio2); /** * @param {Element} menuBody The menu body with the menu arrow. * @param {string} direction The floating menu direction. * @returns {FloatingMenu~offset} The adjustment of the floating menu position, upon the position of the menu arrow. * @private */ export var getMenuOffset = function getMenuOffset(menuBody, direction) { var triggerButtonPositionProp = triggerButtonPositionProps[direction]; var triggerButtonPositionFactor = triggerButtonPositionFactors[direction]; if (!triggerButtonPositionProp || !triggerButtonPositionFactor) { console.warn('Wrong floating menu direction:', direction); // eslint-disable-line no-console } var menuWidth = menuBody.offsetWidth; var arrowStyle = menuBody.ownerDocument.defaultView.getComputedStyle(menuBody, ':before'); var values = [triggerButtonPositionProp, 'left', 'width', 'height', 'border-top-width'].reduce(function (o, name) { return _extends({}, o, _defineProperty({}, name, Number((/^([\d-.]+)px$/.exec(arrowStyle.getPropertyValue(name)) || [])[1]))); }, {}); if (Object.keys(values).every(function (name) { return !isNaN(values[name]); })) { var left = values.left, width = values.width, height = values.height, borderTopWidth = values['border-top-width']; return { left: menuWidth / 2 - (left + Math.sqrt(Math.pow(width, 2) + Math.pow(height, 2)) / 2), top: Math.sqrt(Math.pow(borderTopWidth, 2) * 2) + triggerButtonPositionFactor * values[triggerButtonPositionProp] }; } return undefined; }; var OverflowMenu = function (_mixin) { _inherits(OverflowMenu, _mixin); /** * Overflow menu. * @extends CreateComponent * @extends InitComponentBySearch * @extends Handles * @param {HTMLElement} element The element working as a modal dialog. * @param {Object} [options] The component options. * @param {string} [options.selectorOptionMenu] The CSS selector to find the menu. * @param {string} [options.classShown] The CSS class for the shown state, for the trigger UI. * @param {string} [options.classMenuShown] The CSS class for the shown state, for the menu. * @param {string} [options.classMenuFlip] The CSS class for the flipped state of the menu. * @param {Object} [options.objMenuOffset] The offset locating the menu for the non-flipped state. * @param {Object} [options.objMenuOffsetFlip] The offset locating the menu for the flipped state. */ function OverflowMenu(element, options) { _classCallCheck(this, OverflowMenu); var _this = _possibleConstructorReturn(this, (OverflowMenu.__proto__ || Object.getPrototypeOf(OverflowMenu)).call(this, element, options)); _this.manage(on(_this.element.ownerDocument, 'click', function (event) { _this._handleDocumentClick(event); _this.wasOpenBeforeClick = undefined; })); _this.manage(on(_this.element.ownerDocument, 'keypress', function (event) { _this._handleKeyPress(event); })); _this.manage(on(_this.element, 'mousedown', function () { _this.wasOpenBeforeClick = element.classList.contains(_this.options.classShown); })); return _this; } /** * Changes the shown/hidden state. * @param {string} state The new state. * @param {Object} detail The detail of the event trigging this action. * @param {Function} callback Callback called when change in state completes. */ _createClass(OverflowMenu, [{ key: 'changeState', value: function changeState(state, detail, callback) { if (!this.optionMenu) { var optionMenu = this.element.querySelector(this.options.selectorOptionMenu); if (!optionMenu) { throw new Error('Cannot find the target menu.'); } // Lazily create a component instance for menu this.optionMenu = FloatingMenu.create(optionMenu, { refNode: this.element, classShown: this.options.classMenuShown, classRefShown: this.options.classShown, offset: this.options.objMenuOffset }); this.children.push(this.optionMenu); } if (this.optionMenu.element.classList.contains(this.options.classMenuFlip)) { this.optionMenu.options.offset = this.options.objMenuOffsetFlip; } // Delegates the action of changing state to the menu. // (And thus the before/after shown/hidden events are fired from the menu) this.optionMenu.changeState(state, Object.assign(detail, { delegatorNode: this.element }), callback); } /** * Handles click on document. * @param {Event} event The triggering event. * @private */ }, { key: '_handleDocumentClick', value: function _handleDocumentClick(event) { var element = this.element, optionMenu = this.optionMenu, wasOpenBeforeClick = this.wasOpenBeforeClick; var isOfSelf = element.contains(event.target); var isOfMenu = optionMenu && optionMenu.element.contains(event.target); var shouldBeOpen = isOfSelf && !wasOpenBeforeClick; var state = shouldBeOpen ? 'shown' : 'hidden'; if (isOfSelf) { if (element.tagName === 'A') { event.preventDefault(); } event.delegateTarget = element; // eslint-disable-line no-param-reassign } this.changeState(state, getLaunchingDetails(event), function () { if (state === 'hidden' && isOfMenu) { element.focus(); } }); } /** * Handles key press on document. * @param {Event} event The triggering event. * @private */ }, { key: '_handleKeyPress', value: function _handleKeyPress(event) { var key = event.which; if (key === 13) { var element = this.element, optionMenu = this.optionMenu, options = this.options; var isOfSelf = element.contains(event.target); var isOfMenu = optionMenu && optionMenu.element.contains(event.target); var shouldBeOpen = isOfSelf && !element.classList.contains(options.classShown); var state = shouldBeOpen ? 'shown' : 'hidden'; if (isOfSelf) { if (element.tagName === 'A') { event.preventDefault(); } event.delegateTarget = element; // eslint-disable-line no-param-reassign } this.changeState(state, getLaunchingDetails(event), function () { if (state === 'hidden' && isOfMenu) { element.focus(); } }); } } }], [{ key: 'options', get: function get() { var prefix = settings.prefix; return { selectorInit: '[data-overflow-menu]', selectorOptionMenu: '.' + prefix + '--overflow-menu-options', classShown: prefix + '--overflow-menu--open', classMenuShown: prefix + '--overflow-menu-options--open', classMenuFlip: prefix + '--overflow-menu--flip', objMenuOffset: getMenuOffset, objMenuOffsetFlip: getMenuOffset }; } }]); return OverflowMenu; }(mixin(createComponent, initComponentBySearch, eventedShowHideState, handles)); OverflowMenu.components = new WeakMap(); export default OverflowMenu;