carbon-components
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Carbon Components is a component library for IBM Cloud
296 lines (239 loc) • 10.4 kB
JavaScript
function _typeof(obj) {
if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
_typeof = function _typeof(obj) {
return typeof obj;
};
} else {
_typeof = function _typeof(obj) {
return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
};
}
return _typeof(obj);
}
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a 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);
}
}
function _createClass(Constructor, protoProps, staticProps) {
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
if (staticProps) _defineProperties(Constructor, staticProps);
return Constructor;
}
function _possibleConstructorReturn(self, call) {
if (call && (_typeof(call) === "object" || typeof call === "function")) {
return call;
}
return _assertThisInitialized(self);
}
function _assertThisInitialized(self) {
if (self === void 0) {
throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
}
return self;
}
function _getPrototypeOf(o) {
_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
return o.__proto__ || Object.getPrototypeOf(o);
};
return _getPrototypeOf(o);
}
function _inherits(subClass, superClass) {
if (typeof superClass !== "function" && superClass !== null) {
throw new TypeError("Super expression must either be null or a function");
}
subClass.prototype = Object.create(superClass && superClass.prototype, {
constructor: {
value: subClass,
writable: true,
configurable: true
}
});
if (superClass) _setPrototypeOf(subClass, superClass);
}
function _setPrototypeOf(o, p) {
_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
o.__proto__ = p;
return o;
};
return _setPrototypeOf(o, p);
}
/**
* Copyright IBM Corp. 2016, 2018
*
* This source code is licensed under the Apache-2.0 license found in the
* LICENSE file in the root directory of this source tree.
*/
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 handles from '../../globals/js/mixins/handles';
import on from '../../globals/js/misc/on';
var PaginationNav =
/*#__PURE__*/
function (_mixin) {
_inherits(PaginationNav, _mixin);
/**
* Pagination Nav component
* @extends CreateComponent
* @extends InitComponentBySearch
* @extends Handles
* @param {HTMLElement} element The element working as a pagination nav.
*/
function PaginationNav(element, options) {
var _this;
_classCallCheck(this, PaginationNav);
_this = _possibleConstructorReturn(this, _getPrototypeOf(PaginationNav).call(this, element, options));
_this.getActivePageNumber = function () {
var pageNum;
var activePageElement = _this.element.querySelector(_this.options.selectorPageActive);
if (activePageElement) {
pageNum = Number(activePageElement.getAttribute(_this.options.attribPage));
}
return pageNum;
};
_this.clearActivePage = function (evt) {
var pageButtonNodeList = _this.element.querySelectorAll(_this.options.selectorPageButton);
var pageSelectElement = _this.element.querySelector(_this.options.selectorPageSelect);
Array.prototype.forEach.call(pageButtonNodeList, function (el) {
el.classList.remove(_this.options.classActive, _this.options.classDisabled);
el.removeAttribute(_this.options.attribActive);
el.removeAttribute('aria-disabled');
el.removeAttribute('aria-current');
});
if (pageSelectElement) {
pageSelectElement.removeAttribute('aria-current');
var pageSelectElementOptions = pageSelectElement.options;
Array.prototype.forEach.call(pageSelectElementOptions, function (el) {
el.removeAttribute(_this.options.attribActive);
});
if (!evt.target.matches(_this.options.selectorPageSelect)) {
pageSelectElement.classList.remove(_this.options.classActive);
pageSelectElement.value = '';
}
}
};
_this.handleClick = function (evt) {
if (!evt.target.getAttribute('aria-disabled') === true) {
var nextActivePageNumber = _this.getActivePageNumber();
var pageElementNodeList = _this.element.querySelectorAll(_this.options.selectorPageElement);
var pageSelectElement = _this.element.querySelector(_this.options.selectorPageSelect);
_this.clearActivePage(evt);
if (evt.target.matches(_this.options.selectorPageButton)) {
nextActivePageNumber = Number(evt.target.getAttribute(_this.options.attribPage));
}
if (evt.target.matches(_this.options.selectorPagePrevious)) {
nextActivePageNumber -= 1;
}
if (evt.target.matches(_this.options.selectorPageNext)) {
nextActivePageNumber += 1;
}
var pageTargetElement = pageElementNodeList[nextActivePageNumber - 1];
pageTargetElement.setAttribute(_this.options.attribActive, true);
if (pageTargetElement.tagName === 'OPTION') {
pageSelectElement.value = _this.getActivePageNumber();
pageSelectElement.classList.add(_this.options.classActive);
pageSelectElement.setAttribute('aria-current', 'page');
} else {
pageTargetElement.classList.add(_this.options.classActive, _this.options.classDisabled);
pageTargetElement.setAttribute('aria-disabled', true);
pageTargetElement.setAttribute('aria-current', 'page');
}
_this.setPrevNextStates();
}
};
_this.handleSelectChange = function (evt) {
_this.clearActivePage(evt);
var pageSelectElement = _this.element.querySelector(_this.options.selectorPageSelect);
var pageSelectElementOptions = pageSelectElement.options;
pageSelectElementOptions[pageSelectElementOptions.selectedIndex].setAttribute(_this.options.attribActive, true);
evt.target.setAttribute('aria-current', 'page');
evt.target.classList.add(_this.options.classActive);
_this.setPrevNextStates();
};
_this.setPrevNextStates = function () {
var pageElementNodeList = _this.element.querySelectorAll(_this.options.selectorPageElement);
var totalPages = pageElementNodeList.length;
var pageDirectionElementPrevious = _this.element.querySelector(_this.options.selectorPagePrevious);
var pageDirectionElementNext = _this.element.querySelector(_this.options.selectorPageNext);
if (pageDirectionElementPrevious) {
if (_this.getActivePageNumber() <= 1) {
pageDirectionElementPrevious.setAttribute('aria-disabled', true);
pageDirectionElementPrevious.classList.add(_this.options.classDisabled);
} else {
pageDirectionElementPrevious.removeAttribute('aria-disabled');
pageDirectionElementPrevious.classList.remove(_this.options.classDisabled);
}
}
if (pageDirectionElementNext) {
if (_this.getActivePageNumber() >= totalPages) {
pageDirectionElementNext.setAttribute('aria-disabled', true);
pageDirectionElementNext.classList.add(_this.options.classDisabled);
} else {
pageDirectionElementNext.removeAttribute('aria-disabled');
pageDirectionElementNext.classList.remove(_this.options.classDisabled);
}
}
};
_this.manage(on(_this.element, 'click', function (evt) {
return _this.handleClick(evt);
}));
_this.manage(on(_this.element, 'change', function (evt) {
if (evt.target.matches(_this.options.selectorPageSelect)) {
_this.handleSelectChange(evt);
}
}));
return _this;
}
/**
* Get active page number
*/
_createClass(PaginationNav, null, [{
key: "options",
/**
* The component options.
* If `options` is specified in the constructor, {@linkcode PaginationNav.create .create()},
* or {@linkcode PaginationNav.init .init()},
* properties in this object are overriden for the instance being create and how {@linkcode PaginationNav.init .init()} works.
* @member PaginationNav.options
* @type {Object}
* @property {string} selectorInit The data attribute to find pagination nav.
* @property {string} selectorPageElement The data attribute to find page element.
* @property {string} selectorPageButton The data attribute to find page interactive element.
* @property {string} selectorPageDirection The data attribute to find page change element.
* @property {string} selectorPageSelect The data attribute to find page select element.
* @property {string} selectorPageActive The data attribute to find active page element.
* @property {string} [classActive] The CSS class for page's selected state.
* @property {string} [classDisabled] The CSS class for page's disabled state.
*/
get: function get() {
var prefix = settings.prefix;
return {
selectorInit: '[data-pagination-nav]',
selectorPageElement: '[data-page]',
selectorPageButton: '[data-page-button]',
selectorPagePrevious: '[data-page-previous]',
selectorPageNext: '[data-page-next]',
selectorPageSelect: '[data-page-select]',
selectorPageActive: '[data-page-active="true"]',
attribPage: 'data-page',
attribActive: 'data-page-active',
classActive: "".concat(prefix, "--pagination-nav__page--active"),
classDisabled: "".concat(prefix, "--pagination-nav__page--disabled")
};
}
}]);
PaginationNav.components = new WeakMap();
return PaginationNav;
}(mixin(createComponent, initComponentBySearch, handles));
export default PaginationNav;