723 lines
22 KiB
JavaScript
723 lines
22 KiB
JavaScript
/* eslint-disable consistent-return */
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import fuzzaldrinPlus from 'fuzzaldrin-plus';
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import $ from 'jquery';
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import { escape } from 'lodash';
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import { isObject } from '~/lib/utils/type_utility';
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import { visitUrl } from '~/lib/utils/url_utility';
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import { GitLabDropdownFilter } from './gl_dropdown_filter';
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import { GitLabDropdownInput } from './gl_dropdown_input';
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import { GitLabDropdownRemote } from './gl_dropdown_remote';
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import renderItem from './render';
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const LOADING_CLASS = 'is-loading';
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const PAGE_TWO_CLASS = 'is-page-two';
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const ACTIVE_CLASS = 'is-active';
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const INDETERMINATE_CLASS = 'is-indeterminate';
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let currentIndex = -1;
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const NON_SELECTABLE_CLASSES = '.divider, .separator, .dropdown-header, .dropdown-menu-empty-item';
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const SELECTABLE_CLASSES = `.dropdown-content li:not(${NON_SELECTABLE_CLASSES}, .option-hidden)`;
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const CURSOR_SELECT_SCROLL_PADDING = 5;
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const FILTER_INPUT = '.dropdown-input .dropdown-input-field:not(.dropdown-no-filter)';
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const NO_FILTER_INPUT = '.dropdown-input .dropdown-input-field.dropdown-no-filter';
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let mouseEventListenersAdded = false;
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let mousedownTarget = null;
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let mouseupTarget = null;
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function addGlobalMouseEventListeners() {
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// Remember mousedown and mouseup locations.
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// Required in the `hide.bs.dropdown` listener for
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// dropdown close prevention in some cases.
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document.addEventListener('mousedown', ({ target }) => {
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mousedownTarget = target;
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});
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document.addEventListener('mouseup', ({ target }) => {
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mouseupTarget = target;
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});
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document.addEventListener('click', () => {
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mousedownTarget = null;
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mouseupTarget = null;
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});
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}
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export class GitLabDropdown {
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constructor(el1, options) {
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let selector;
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let self;
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this.el = el1;
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this.options = options;
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this.updateLabel = this.updateLabel.bind(this);
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this.opened = this.opened.bind(this);
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this.hide = this.hide.bind(this);
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this.hidden = this.hidden.bind(this);
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this.shouldPropagate = this.shouldPropagate.bind(this);
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if (!mouseEventListenersAdded) {
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addGlobalMouseEventListeners();
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mouseEventListenersAdded = true;
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}
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self = this;
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selector = $(this.el).data('target');
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this.dropdown = selector != null ? $(selector) : $(this.el).parent();
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// Set Defaults
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this.filterInput = this.options.filterInput || this.getElement(FILTER_INPUT);
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this.noFilterInput = this.options.noFilterInput || this.getElement(NO_FILTER_INPUT);
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this.highlight = Boolean(this.options.highlight);
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this.icon = Boolean(this.options.icon);
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this.filterInputBlur =
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this.options.filterInputBlur != null ? this.options.filterInputBlur : true;
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// If no input is passed create a default one
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self = this;
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// If selector was passed
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if (typeof this.filterInput === 'string') {
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this.filterInput = this.getElement(this.filterInput);
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}
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const searchFields = this.options.search ? this.options.search.fields : [];
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if (this.options.data) {
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// If we provided data
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// data could be an array of objects or a group of arrays
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if (typeof this.options.data === 'object' && !(this.options.data instanceof Function)) {
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this.fullData = this.options.data;
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currentIndex = -1;
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this.parseData(this.options.data);
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this.focusTextInput();
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} else {
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this.remote = new GitLabDropdownRemote(this.options.data, {
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dataType: this.options.dataType,
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beforeSend: this.toggleLoading.bind(this),
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success: (data) => {
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this.fullData = data;
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this.parseData(this.fullData);
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this.focusTextInput();
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// Update dropdown position since remote data may have changed dropdown size
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this.dropdown.find('.dropdown-menu-toggle').dropdown('update');
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if (
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this.options.filterable &&
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this.filter &&
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this.filter.input &&
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this.filter.input.val() &&
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this.filter.input.val().trim() !== ''
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) {
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return this.filter.input.trigger('input');
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}
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},
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instance: this,
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});
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}
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}
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if (this.noFilterInput.length) {
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this.plainInput = new GitLabDropdownInput(this.noFilterInput, this.options);
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this.plainInput.onInput(this.addInput.bind(this));
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}
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// Init filterable
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if (this.options.filterable) {
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this.filter = new GitLabDropdownFilter(this.filterInput, {
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elIsInput: $(this.el).is('input'),
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filterInputBlur: this.filterInputBlur,
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filterByText: this.options.filterByText,
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onFilter: this.options.onFilter,
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remote: this.options.filterRemote,
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query: this.options.data,
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keys: searchFields,
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instance: this,
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elements: () => {
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selector = `.dropdown-content li:not(${NON_SELECTABLE_CLASSES})`;
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if (this.dropdown.find('.dropdown-toggle-page').length) {
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selector = `.dropdown-page-one ${selector}`;
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}
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return $(selector, this.dropdown);
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},
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data: () => this.fullData,
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callback: (data) => {
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this.parseData(data);
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if (this.filterInput.val() !== '') {
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selector = SELECTABLE_CLASSES;
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if (this.dropdown.find('.dropdown-toggle-page').length) {
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selector = `.dropdown-page-one ${selector}`;
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}
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if ($(this.el).is('input')) {
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currentIndex = -1;
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} else {
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$(selector, this.dropdown).first().find('a').addClass('is-focused');
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currentIndex = 0;
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}
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}
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},
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});
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}
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// Event listeners
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this.dropdown.on('shown.bs.dropdown', this.opened);
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this.dropdown.on('hide.bs.dropdown', this.hide);
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this.dropdown.on('hidden.bs.dropdown', this.hidden);
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$(this.el).on('update.label', this.updateLabel);
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this.dropdown.on('click', '.dropdown-menu, .dropdown-menu-close', this.shouldPropagate);
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this.dropdown.on('keyup', (e) => {
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// Escape key
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if (e.which === 27) {
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return $('.dropdown-menu-close', this.dropdown).trigger('click');
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}
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});
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this.dropdown.on('blur', 'a', (e) => {
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let $dropdownMenu;
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let $relatedTarget;
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if (e.relatedTarget != null) {
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$relatedTarget = $(e.relatedTarget);
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$dropdownMenu = $relatedTarget.closest('.dropdown-menu');
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if ($dropdownMenu.length === 0) {
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return this.dropdown.removeClass('show');
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}
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}
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});
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if (this.dropdown.find('.dropdown-toggle-page').length) {
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this.dropdown.find('.dropdown-toggle-page, .dropdown-menu-back').on('click', (e) => {
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e.preventDefault();
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e.stopPropagation();
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return this.togglePage();
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});
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}
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if (this.options.selectable) {
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selector = '.dropdown-content a';
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if (this.dropdown.find('.dropdown-toggle-page').length) {
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selector = '.dropdown-page-one .dropdown-content a';
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}
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this.dropdown.on('click', selector, (e) => {
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const $el = $(e.currentTarget);
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const selected = self.rowClicked($el);
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const selectedObj = selected ? selected[0] : null;
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const isMarking = selected ? selected[1] : null;
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if (this.options.clicked) {
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this.options.clicked.call(this, {
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selectedObj,
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$el,
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e,
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isMarking,
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});
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}
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// Update label right after all modifications in dropdown has been done
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if (this.options.toggleLabel) {
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this.updateLabel(selectedObj, $el, this);
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}
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$el.trigger('blur');
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});
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}
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}
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// Finds an element inside wrapper element
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getElement(selector) {
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return this.dropdown.find(selector);
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}
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toggleLoading() {
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return $('.dropdown-menu', this.dropdown).toggleClass(LOADING_CLASS);
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}
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togglePage() {
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const menu = $('.dropdown-menu', this.dropdown);
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if (menu.hasClass(PAGE_TWO_CLASS)) {
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if (this.remote) {
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this.remote.execute();
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}
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}
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menu.toggleClass(PAGE_TWO_CLASS);
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// Focus first visible input on active page
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return this.dropdown.find('[class^="dropdown-page-"]:visible :text:visible:first').focus();
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}
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parseData(data) {
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let groupData;
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let html;
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this.renderedData = data;
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if (this.options.filterable && data.length === 0) {
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// render no matching results
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html = [this.noResults()];
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}
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// Handle array groups
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else if (isObject(data)) {
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html = [];
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Object.keys(data).forEach((name) => {
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groupData = data[name];
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html.push(
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this.renderItem(
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{
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content: name,
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type: 'header',
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},
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name,
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),
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);
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this.renderData(groupData, name).map((item) => html.push(item));
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});
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} else {
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// Render each row
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html = this.renderData(data);
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}
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// Render the full menu
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const fullHtml = this.renderMenu(html);
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return this.appendMenu(fullHtml);
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}
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renderData(data, group) {
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return data.map((obj, index) => this.renderItem(obj, group || false, index));
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}
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shouldPropagate(e) {
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let $target;
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if (this.options.multiSelect || this.options.shouldPropagate === false) {
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$target = $(e.target);
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if (
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$target &&
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!$target.hasClass('dropdown-menu-close') &&
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!$target.hasClass('dropdown-menu-close-icon') &&
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!$target.is('use') &&
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!$target.data('isLink')
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) {
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e.stopPropagation();
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// This prevents automatic scrolling to the top
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if ($target.closest('a').length) {
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return false;
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}
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}
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return true;
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}
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}
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filteredFullData() {
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return this.fullData.filter(
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(r) =>
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typeof r === 'object' &&
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!Object.prototype.hasOwnProperty.call(r, 'beforeDivider') &&
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!Object.prototype.hasOwnProperty.call(r, 'header'),
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);
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}
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opened(e) {
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this.resetRows();
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this.addArrowKeyEvent();
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const dropdownToggle = this.dropdown.find('.dropdown-menu-toggle');
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const hasFilterBulkUpdate = dropdownToggle.hasClass('js-filter-bulk-update');
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const shouldRefreshOnOpen = dropdownToggle.hasClass('js-gl-dropdown-refresh-on-open');
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const hasMultiSelect = dropdownToggle.hasClass('js-multiselect');
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// Makes indeterminate items effective
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if (this.fullData && (shouldRefreshOnOpen || hasFilterBulkUpdate)) {
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this.parseData(this.fullData);
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}
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// Process the data to make sure rendered data
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// matches the correct layout
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const inputValue = this.filterInput.val();
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if (this.fullData && hasMultiSelect && this.options.processData && inputValue.length === 0) {
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this.options.processData.call(
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this.options,
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inputValue,
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this.filteredFullData(),
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this.parseData.bind(this),
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);
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}
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const contentHtml = $('.dropdown-content', this.dropdown).html();
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if (this.remote && contentHtml === '') {
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this.remote.execute();
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} else {
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this.focusTextInput();
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}
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if (this.options.showMenuAbove) {
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this.positionMenuAbove();
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}
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if (this.options.opened) {
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if (this.options.preserveContext) {
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this.options.opened(e);
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} else {
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this.options.opened.call(this, e);
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}
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}
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return this.dropdown.trigger('shown.gl.dropdown');
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}
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positionMenuAbove() {
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const $menu = this.dropdown.find('.dropdown-menu');
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$menu.addClass('dropdown-open-top');
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$menu.css('top', 'initial');
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$menu.css('bottom', '100%');
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}
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hide(e) {
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// Prevent dropdowns with a search from being closed when the
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// mousedown event happened inside the dropdown box and only
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// the mouseup event did not.
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if (this.options.search && mousedownTarget) {
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const isIn = (element, $possibleContainer) => Boolean($possibleContainer.has(element).length);
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const $menu = this.dropdown.find('.dropdown-menu');
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const mousedownInsideDropdown = isIn(mousedownTarget, $menu);
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const mouseupOutsideDropdown = !isIn(mouseupTarget, $menu);
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if (mousedownInsideDropdown && mouseupOutsideDropdown) {
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e.preventDefault();
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}
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}
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}
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hidden(e) {
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this.resetRows();
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this.removeArrowKeyEvent();
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const $input = this.dropdown.find('.dropdown-input-field');
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if (this.options.filterable) {
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$input.blur();
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}
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if (this.dropdown.find('.dropdown-toggle-page').length) {
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$('.dropdown-menu', this.dropdown).removeClass(PAGE_TWO_CLASS);
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}
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if (this.options.hidden) {
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this.options.hidden.call(this, e);
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}
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return this.dropdown.trigger('hidden.gl.dropdown');
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}
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// Render the full menu
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renderMenu(html) {
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if (this.options.renderMenu) {
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return this.options.renderMenu(html);
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}
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return $('<ul>').append(html);
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}
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// Append the menu into the dropdown
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appendMenu(html) {
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return this.clearMenu().append(html);
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}
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clearMenu() {
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let selector = '.dropdown-content';
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if (this.dropdown.find('.dropdown-toggle-page').length) {
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if (this.options.containerSelector) {
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selector = this.options.containerSelector;
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} else {
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selector = '.dropdown-page-one .dropdown-content';
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}
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}
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return $(selector, this.dropdown).empty();
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}
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renderItem(data, group, index) {
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let parent;
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if (this.dropdown && this.dropdown[0]) {
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parent = this.dropdown[0].parentNode;
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}
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return renderItem({
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instance: this,
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options: {
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...this.options,
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icon: this.icon,
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highlight: this.highlight,
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highlightText: (text) => this.highlightTextMatches(text, this.filterInput.val()),
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highlightTemplate: this.highlightTemplate.bind(this),
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parent,
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},
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data,
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group,
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index,
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});
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}
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// eslint-disable-next-line class-methods-use-this
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highlightTemplate(text, template) {
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return `"<b>${escape(text)}</b>" ${template}`;
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}
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// eslint-disable-next-line class-methods-use-this
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highlightTextMatches(text, term) {
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const occurrences = fuzzaldrinPlus.match(text, term);
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const { indexOf } = [];
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return text
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.split('')
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.map((character, i) => {
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if (indexOf.call(occurrences, i) !== -1) {
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return `<b>${character}</b>`;
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}
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return character;
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})
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.join('');
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}
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// eslint-disable-next-line class-methods-use-this
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noResults() {
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return '<li class="dropdown-menu-empty-item"><a>No matching results</a></li>';
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}
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rowClicked(el) {
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let field;
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let groupName;
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let selectedIndex;
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let selectedObject;
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let isMarking;
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const { fieldName } = this.options;
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const isInput = $(this.el).is('input');
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if (this.renderedData) {
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groupName = el.data('group');
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if (groupName) {
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selectedIndex = el.data('index');
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this.selectedIndex = selectedIndex;
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selectedObject = this.renderedData[groupName][selectedIndex];
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} else {
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selectedIndex = el.closest('li').index();
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this.selectedIndex = selectedIndex;
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selectedObject = this.renderedData[selectedIndex];
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}
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}
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if (this.options.vue) {
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if (el.hasClass(ACTIVE_CLASS)) {
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el.removeClass(ACTIVE_CLASS);
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} else {
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el.addClass(ACTIVE_CLASS);
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}
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return [selectedObject];
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}
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field = [];
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const value = this.options.id ? this.options.id(selectedObject, el) : selectedObject.id;
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if (isInput) {
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field = $(this.el);
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} else if (value != null) {
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field = this.dropdown
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.parent()
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.find(`input[name='${fieldName}'][value='${value.toString().replace(/'/g, "\\'")}']`);
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}
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if (this.options.isSelectable && !this.options.isSelectable(selectedObject, el)) {
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return [selectedObject];
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}
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if (el.hasClass(ACTIVE_CLASS) && value !== 0) {
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isMarking = false;
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el.removeClass(ACTIVE_CLASS);
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if (field && field.length) {
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this.clearField(field, isInput);
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}
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} else if (el.hasClass(INDETERMINATE_CLASS)) {
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isMarking = true;
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el.addClass(ACTIVE_CLASS);
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el.removeClass(INDETERMINATE_CLASS);
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if (field && field.length && value == null) {
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this.clearField(field, isInput);
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}
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if ((!field || !field.length) && fieldName) {
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this.addInput(fieldName, value, selectedObject);
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}
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} else {
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isMarking = true;
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if (!this.options.multiSelect || el.hasClass('dropdown-clear-active')) {
|
|
this.dropdown.find(`.${ACTIVE_CLASS}`).removeClass(ACTIVE_CLASS);
|
|
if (!isInput) {
|
|
this.dropdown.parent().find(`input[name='${fieldName}']`).remove();
|
|
}
|
|
}
|
|
if (field && field.length && value == null) {
|
|
this.clearField(field, isInput);
|
|
}
|
|
// Toggle active class for the tick mark
|
|
el.addClass(ACTIVE_CLASS);
|
|
if (value != null) {
|
|
if ((!field || !field.length) && fieldName) {
|
|
this.addInput(fieldName, value, selectedObject);
|
|
} else if (field && field.length) {
|
|
field.val(value).trigger('change');
|
|
}
|
|
}
|
|
}
|
|
|
|
return [selectedObject, isMarking];
|
|
}
|
|
|
|
focusTextInput() {
|
|
if (this.options.filterable) {
|
|
const initialScrollTop = $(window).scrollTop();
|
|
|
|
if (this.dropdown.is('.show') && !this.filterInput.is(':focus')) {
|
|
this.filterInput.focus();
|
|
}
|
|
|
|
if ($(window).scrollTop() < initialScrollTop) {
|
|
$(window).scrollTop(initialScrollTop);
|
|
}
|
|
}
|
|
}
|
|
|
|
addInput(fieldName, value, selectedObject, single) {
|
|
// Create hidden input for form
|
|
if (single) {
|
|
$(`input[name="${fieldName}"]`).remove();
|
|
}
|
|
|
|
const $input = $('<input>').attr('type', 'hidden').attr('name', fieldName).val(value);
|
|
if (this.options.inputId != null) {
|
|
$input.attr('id', this.options.inputId);
|
|
}
|
|
|
|
if (this.options.multiSelect) {
|
|
Object.keys(selectedObject).forEach((attribute) => {
|
|
$input.attr(`data-${attribute}`, selectedObject[attribute]);
|
|
});
|
|
}
|
|
|
|
if (this.options.inputMeta) {
|
|
$input.attr('data-meta', selectedObject[this.options.inputMeta]);
|
|
}
|
|
|
|
this.dropdown.before($input).trigger('change');
|
|
}
|
|
|
|
selectRowAtIndex(index) {
|
|
// If we pass an option index
|
|
let selector;
|
|
if (typeof index !== 'undefined') {
|
|
selector = `${SELECTABLE_CLASSES}:eq(${index}) a`;
|
|
} else {
|
|
selector = '.dropdown-content .is-focused';
|
|
}
|
|
if (this.dropdown.find('.dropdown-toggle-page').length) {
|
|
selector = `.dropdown-page-one ${selector}`;
|
|
}
|
|
// simulate a click on the first link
|
|
const $el = $(selector, this.dropdown);
|
|
if ($el.length) {
|
|
const href = $el.attr('href');
|
|
if (href && href !== '#') {
|
|
visitUrl(href);
|
|
} else {
|
|
$el.trigger('click');
|
|
}
|
|
}
|
|
}
|
|
|
|
addArrowKeyEvent() {
|
|
const ARROW_KEY_CODES = [38, 40];
|
|
let selector = SELECTABLE_CLASSES;
|
|
if (this.dropdown.find('.dropdown-toggle-page').length) {
|
|
selector = `.dropdown-page-one ${selector}`;
|
|
}
|
|
return $('body').on('keydown', (e) => {
|
|
let $listItems;
|
|
let PREV_INDEX;
|
|
const currentKeyCode = e.which;
|
|
if (ARROW_KEY_CODES.indexOf(currentKeyCode) !== -1) {
|
|
e.preventDefault();
|
|
e.stopImmediatePropagation();
|
|
PREV_INDEX = currentIndex;
|
|
$listItems = $(selector, this.dropdown);
|
|
// if @options.filterable
|
|
// $input.blur()
|
|
if (currentKeyCode === 40) {
|
|
// Move down
|
|
if (currentIndex < $listItems.length - 1) {
|
|
currentIndex += 1;
|
|
}
|
|
} else if (currentKeyCode === 38) {
|
|
// Move up
|
|
if (currentIndex > 0) {
|
|
currentIndex -= 1;
|
|
}
|
|
}
|
|
if (currentIndex !== PREV_INDEX) {
|
|
this.highlightRowAtIndex($listItems, currentIndex);
|
|
}
|
|
return false;
|
|
}
|
|
if (currentKeyCode === 13 && currentIndex !== -1) {
|
|
e.preventDefault();
|
|
this.selectRowAtIndex();
|
|
}
|
|
});
|
|
}
|
|
|
|
// eslint-disable-next-line class-methods-use-this
|
|
removeArrowKeyEvent() {
|
|
// eslint-disable-next-line @gitlab/no-global-event-off
|
|
return $('body').off('keydown');
|
|
}
|
|
|
|
resetRows() {
|
|
currentIndex = -1;
|
|
$('.is-focused', this.dropdown).removeClass('is-focused');
|
|
}
|
|
|
|
highlightRowAtIndex($listItems, index) {
|
|
if (!$listItems) {
|
|
// eslint-disable-next-line no-param-reassign
|
|
$listItems = $(SELECTABLE_CLASSES, this.dropdown);
|
|
}
|
|
|
|
// Remove the class for the previously focused row
|
|
$('.is-focused', this.dropdown).removeClass('is-focused');
|
|
// Update the class for the row at the specific index
|
|
const $listItem = $listItems.eq(index);
|
|
$listItem.find('a:first-child').addClass('is-focused');
|
|
// Dropdown content scroll area
|
|
const $dropdownContent = $listItem.closest('.dropdown-content');
|
|
const dropdownScrollTop = $dropdownContent.scrollTop();
|
|
const dropdownContentHeight = $dropdownContent.outerHeight();
|
|
const dropdownContentTop = $dropdownContent.prop('offsetTop');
|
|
const dropdownContentBottom = dropdownContentTop + dropdownContentHeight;
|
|
// Get the offset bottom of the list item
|
|
const listItemHeight = $listItem.outerHeight();
|
|
const listItemTop = $listItem.prop('offsetTop');
|
|
const listItemBottom = listItemTop + listItemHeight;
|
|
if (!index) {
|
|
// Scroll the dropdown content to the top
|
|
$dropdownContent.scrollTop(0);
|
|
} else if (index === $listItems.length - 1) {
|
|
// Scroll the dropdown content to the bottom
|
|
$dropdownContent.scrollTop($dropdownContent.prop('scrollHeight'));
|
|
} else if (listItemBottom > dropdownContentBottom + dropdownScrollTop) {
|
|
// Scroll the dropdown content down
|
|
$dropdownContent.scrollTop(
|
|
listItemBottom - dropdownContentBottom + CURSOR_SELECT_SCROLL_PADDING,
|
|
);
|
|
} else if (listItemTop < dropdownContentTop + dropdownScrollTop) {
|
|
// Scroll the dropdown content up
|
|
return $dropdownContent.scrollTop(
|
|
listItemTop - dropdownContentTop - CURSOR_SELECT_SCROLL_PADDING,
|
|
);
|
|
}
|
|
}
|
|
|
|
updateLabel(selected = null, el = null, instance = null) {
|
|
let toggleText = this.options.toggleLabel(selected, el, instance);
|
|
if (this.options.updateLabel) {
|
|
// Option to override the dropdown label text
|
|
toggleText = this.options.updateLabel;
|
|
}
|
|
|
|
return $(this.el).find('.dropdown-toggle-text').text(toggleText);
|
|
}
|
|
|
|
// eslint-disable-next-line class-methods-use-this
|
|
clearField(field, isInput) {
|
|
return isInput ? field.val('') : field.remove();
|
|
}
|
|
}
|