540 lines
14 KiB
JavaScript
540 lines
14 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
import $ from 'jquery';
|
||
|
|
import { onLoad } from './foundation.core.utils';
|
||
|
|
import { Keyboard } from './foundation.util.keyboard';
|
||
|
|
import { onImagesLoaded } from './foundation.util.imageLoader';
|
||
|
|
import { Plugin } from './foundation.core.plugin';
|
||
|
|
/**
|
||
|
|
* Tabs module.
|
||
|
|
* @module foundation.tabs
|
||
|
|
* @requires foundation.util.keyboard
|
||
|
|
* @requires foundation.util.imageLoader if tabs contain images
|
||
|
|
*/
|
||
|
|
|
||
|
|
class Tabs extends Plugin {
|
||
|
|
/**
|
||
|
|
* Creates a new instance of tabs.
|
||
|
|
* @class
|
||
|
|
* @name Tabs
|
||
|
|
* @fires Tabs#init
|
||
|
|
* @param {jQuery} element - jQuery object to make into tabs.
|
||
|
|
* @param {Object} options - Overrides to the default plugin settings.
|
||
|
|
*/
|
||
|
|
_setup(element, options) {
|
||
|
|
this.$element = element;
|
||
|
|
this.options = $.extend({}, Tabs.defaults, this.$element.data(), options);
|
||
|
|
this.className = 'Tabs'; // ie9 back compat
|
||
|
|
|
||
|
|
this._init();
|
||
|
|
Keyboard.register('Tabs', {
|
||
|
|
'ENTER': 'open',
|
||
|
|
'SPACE': 'open',
|
||
|
|
'ARROW_RIGHT': 'next',
|
||
|
|
'ARROW_UP': 'previous',
|
||
|
|
'ARROW_DOWN': 'next',
|
||
|
|
'ARROW_LEFT': 'previous'
|
||
|
|
// 'TAB': 'next',
|
||
|
|
// 'SHIFT_TAB': 'previous'
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initializes the tabs by showing and focusing (if autoFocus=true) the preset active tab.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
_init() {
|
||
|
|
var _this = this;
|
||
|
|
this._isInitializing = true;
|
||
|
|
|
||
|
|
this.$element.attr({'role': 'tablist'});
|
||
|
|
this.$tabTitles = this.$element.find(`.${this.options.linkClass}`);
|
||
|
|
this.$tabContent = $(`[data-tabs-content="${this.$element[0].id}"]`);
|
||
|
|
|
||
|
|
this.$tabTitles.each(function(){
|
||
|
|
var $elem = $(this),
|
||
|
|
$link = $elem.find('a'),
|
||
|
|
isActive = $elem.hasClass(`${_this.options.linkActiveClass}`),
|
||
|
|
hash = $link.attr('data-tabs-target') || $link[0].hash.slice(1),
|
||
|
|
linkId = $link[0].id ? $link[0].id : `${hash}-label`,
|
||
|
|
$tabContent = $(`#${hash}`);
|
||
|
|
|
||
|
|
$elem.attr({'role': 'presentation'});
|
||
|
|
|
||
|
|
$link.attr({
|
||
|
|
'role': 'tab',
|
||
|
|
'aria-controls': hash,
|
||
|
|
'aria-selected': isActive,
|
||
|
|
'id': linkId,
|
||
|
|
'tabindex': isActive ? '0' : '-1'
|
||
|
|
});
|
||
|
|
|
||
|
|
$tabContent.attr({
|
||
|
|
'role': 'tabpanel',
|
||
|
|
'aria-labelledby': linkId
|
||
|
|
});
|
||
|
|
|
||
|
|
// Save up the initial hash to return to it later when going back in history
|
||
|
|
if (isActive) {
|
||
|
|
_this._initialAnchor = `#${hash}`;
|
||
|
|
}
|
||
|
|
|
||
|
|
if(!isActive) {
|
||
|
|
$tabContent.attr('aria-hidden', 'true');
|
||
|
|
}
|
||
|
|
|
||
|
|
if(isActive && _this.options.autoFocus){
|
||
|
|
_this.onLoadListener = onLoad($(window), function() {
|
||
|
|
$('html, body').animate({ scrollTop: $elem.offset().top }, _this.options.deepLinkSmudgeDelay, () => {
|
||
|
|
$link.focus();
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
if(this.options.matchHeight) {
|
||
|
|
var $images = this.$tabContent.find('img');
|
||
|
|
|
||
|
|
if ($images.length) {
|
||
|
|
onImagesLoaded($images, this._setHeight.bind(this));
|
||
|
|
} else {
|
||
|
|
this._setHeight();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Current context-bound function to open tabs on page load or history hashchange
|
||
|
|
this._checkDeepLink = () => {
|
||
|
|
var anchor = window.location.hash;
|
||
|
|
|
||
|
|
if (!anchor.length) {
|
||
|
|
// If we are still initializing and there is no anchor, then there is nothing to do
|
||
|
|
if (this._isInitializing) return;
|
||
|
|
// Otherwise, move to the initial anchor
|
||
|
|
if (this._initialAnchor) anchor = this._initialAnchor;
|
||
|
|
}
|
||
|
|
|
||
|
|
var $anchor = anchor && $(anchor);
|
||
|
|
var $link = anchor && this.$element.find('[href$="'+anchor+'"]');
|
||
|
|
// Whether the anchor element that has been found is part of this element
|
||
|
|
var isOwnAnchor = !!($anchor.length && $link.length);
|
||
|
|
|
||
|
|
// If there is an anchor for the hash, select it
|
||
|
|
if ($anchor && $anchor.length && $link && $link.length) {
|
||
|
|
this.selectTab($anchor, true);
|
||
|
|
}
|
||
|
|
// Otherwise, collapse everything
|
||
|
|
else {
|
||
|
|
this._collapse();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isOwnAnchor) {
|
||
|
|
// Roll up a little to show the titles
|
||
|
|
if (this.options.deepLinkSmudge) {
|
||
|
|
var offset = this.$element.offset();
|
||
|
|
$('html, body').animate({ scrollTop: offset.top }, this.options.deepLinkSmudgeDelay);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fires when the plugin has deeplinked at pageload
|
||
|
|
* @event Tabs#deeplink
|
||
|
|
*/
|
||
|
|
this.$element.trigger('deeplink.zf.tabs', [$link, $anchor]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//use browser to open a tab, if it exists in this tabset
|
||
|
|
if (this.options.deepLink) {
|
||
|
|
this._checkDeepLink();
|
||
|
|
}
|
||
|
|
|
||
|
|
this._events();
|
||
|
|
|
||
|
|
this._isInitializing = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds event handlers for items within the tabs.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
_events() {
|
||
|
|
this._addKeyHandler();
|
||
|
|
this._addClickHandler();
|
||
|
|
this._setHeightMqHandler = null;
|
||
|
|
|
||
|
|
if (this.options.matchHeight) {
|
||
|
|
this._setHeightMqHandler = this._setHeight.bind(this);
|
||
|
|
|
||
|
|
$(window).on('changed.zf.mediaquery', this._setHeightMqHandler);
|
||
|
|
}
|
||
|
|
|
||
|
|
if(this.options.deepLink) {
|
||
|
|
$(window).on('hashchange', this._checkDeepLink);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds click handlers for items within the tabs.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
_addClickHandler() {
|
||
|
|
var _this = this;
|
||
|
|
|
||
|
|
this.$element
|
||
|
|
.off('click.zf.tabs')
|
||
|
|
.on('click.zf.tabs', `.${this.options.linkClass}`, function(e){
|
||
|
|
e.preventDefault();
|
||
|
|
e.stopPropagation();
|
||
|
|
_this._handleTabChange($(this));
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Adds keyboard event handlers for items within the tabs.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
_addKeyHandler() {
|
||
|
|
var _this = this;
|
||
|
|
|
||
|
|
this.$tabTitles.off('keydown.zf.tabs').on('keydown.zf.tabs', function(e){
|
||
|
|
if (e.which === 9) return;
|
||
|
|
|
||
|
|
|
||
|
|
var $element = $(this),
|
||
|
|
$elements = $element.parent('ul').children('li'),
|
||
|
|
$prevElement,
|
||
|
|
$nextElement;
|
||
|
|
|
||
|
|
$elements.each(function(i) {
|
||
|
|
if ($(this).is($element)) {
|
||
|
|
if (_this.options.wrapOnKeys) {
|
||
|
|
$prevElement = i === 0 ? $elements.last() : $elements.eq(i-1);
|
||
|
|
$nextElement = i === $elements.length -1 ? $elements.first() : $elements.eq(i+1);
|
||
|
|
} else {
|
||
|
|
$prevElement = $elements.eq(Math.max(0, i-1));
|
||
|
|
$nextElement = $elements.eq(Math.min(i+1, $elements.length-1));
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
// handle keyboard event with keyboard util
|
||
|
|
Keyboard.handleKey(e, 'Tabs', {
|
||
|
|
open: function() {
|
||
|
|
$element.find('[role="tab"]').focus();
|
||
|
|
_this._handleTabChange($element);
|
||
|
|
},
|
||
|
|
previous: function() {
|
||
|
|
$prevElement.find('[role="tab"]').focus();
|
||
|
|
_this._handleTabChange($prevElement);
|
||
|
|
},
|
||
|
|
next: function() {
|
||
|
|
$nextElement.find('[role="tab"]').focus();
|
||
|
|
_this._handleTabChange($nextElement);
|
||
|
|
},
|
||
|
|
handled: function() {
|
||
|
|
e.stopPropagation();
|
||
|
|
e.preventDefault();
|
||
|
|
}
|
||
|
|
});
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Opens the tab `$targetContent` defined by `$target`. Collapses active tab.
|
||
|
|
* @param {jQuery} $target - Tab to open.
|
||
|
|
* @param {boolean} historyHandled - browser has already handled a history update
|
||
|
|
* @fires Tabs#change
|
||
|
|
* @function
|
||
|
|
*/
|
||
|
|
_handleTabChange($target, historyHandled) {
|
||
|
|
|
||
|
|
// With `activeCollapse`, if the target is the active Tab, collapse it.
|
||
|
|
if ($target.hasClass(`${this.options.linkActiveClass}`)) {
|
||
|
|
if(this.options.activeCollapse) {
|
||
|
|
this._collapse();
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var $oldTab = this.$element.
|
||
|
|
find(`.${this.options.linkClass}.${this.options.linkActiveClass}`),
|
||
|
|
$tabLink = $target.find('[role="tab"]'),
|
||
|
|
target = $tabLink.attr('data-tabs-target'),
|
||
|
|
anchor = target && target.length ? `#${target}` : $tabLink[0].hash,
|
||
|
|
$targetContent = this.$tabContent.find(anchor);
|
||
|
|
|
||
|
|
//close old tab
|
||
|
|
this._collapseTab($oldTab);
|
||
|
|
|
||
|
|
//open new tab
|
||
|
|
this._openTab($target);
|
||
|
|
|
||
|
|
//either replace or update browser history
|
||
|
|
if (this.options.deepLink && !historyHandled) {
|
||
|
|
if (this.options.updateHistory) {
|
||
|
|
history.pushState({}, '', anchor);
|
||
|
|
} else {
|
||
|
|
history.replaceState({}, '', anchor);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fires when the plugin has successfully changed tabs.
|
||
|
|
* @event Tabs#change
|
||
|
|
*/
|
||
|
|
this.$element.trigger('change.zf.tabs', [$target, $targetContent]);
|
||
|
|
|
||
|
|
//fire to children a mutation event
|
||
|
|
$targetContent.find("[data-mutate]").trigger("mutateme.zf.trigger");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Opens the tab `$targetContent` defined by `$target`.
|
||
|
|
* @param {jQuery} $target - Tab to open.
|
||
|
|
* @function
|
||
|
|
*/
|
||
|
|
_openTab($target) {
|
||
|
|
var $tabLink = $target.find('[role="tab"]'),
|
||
|
|
hash = $tabLink.attr('data-tabs-target') || $tabLink[0].hash.slice(1),
|
||
|
|
$targetContent = this.$tabContent.find(`#${hash}`);
|
||
|
|
|
||
|
|
$target.addClass(`${this.options.linkActiveClass}`);
|
||
|
|
|
||
|
|
$tabLink.attr({
|
||
|
|
'aria-selected': 'true',
|
||
|
|
'tabindex': '0'
|
||
|
|
});
|
||
|
|
|
||
|
|
$targetContent
|
||
|
|
.addClass(`${this.options.panelActiveClass}`).removeAttr('aria-hidden');
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Collapses `$targetContent` defined by `$target`.
|
||
|
|
* @param {jQuery} $target - Tab to collapse.
|
||
|
|
* @function
|
||
|
|
*/
|
||
|
|
_collapseTab($target) {
|
||
|
|
var $target_anchor = $target
|
||
|
|
.removeClass(`${this.options.linkActiveClass}`)
|
||
|
|
.find('[role="tab"]')
|
||
|
|
.attr({
|
||
|
|
'aria-selected': 'false',
|
||
|
|
'tabindex': -1
|
||
|
|
});
|
||
|
|
|
||
|
|
$(`#${$target_anchor.attr('aria-controls')}`)
|
||
|
|
.removeClass(`${this.options.panelActiveClass}`)
|
||
|
|
.attr({ 'aria-hidden': 'true' })
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Collapses the active Tab.
|
||
|
|
* @fires Tabs#collapse
|
||
|
|
* @function
|
||
|
|
*/
|
||
|
|
_collapse() {
|
||
|
|
var $activeTab = this.$element.find(`.${this.options.linkClass}.${this.options.linkActiveClass}`);
|
||
|
|
|
||
|
|
if ($activeTab.length) {
|
||
|
|
this._collapseTab($activeTab);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Fires when the plugin has successfully collapsed tabs.
|
||
|
|
* @event Tabs#collapse
|
||
|
|
*/
|
||
|
|
this.$element.trigger('collapse.zf.tabs', [$activeTab]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Public method for selecting a content pane to display.
|
||
|
|
* @param {jQuery | String} elem - jQuery object or string of the id of the pane to display.
|
||
|
|
* @param {boolean} historyHandled - browser has already handled a history update
|
||
|
|
* @function
|
||
|
|
*/
|
||
|
|
selectTab(elem, historyHandled) {
|
||
|
|
var idStr;
|
||
|
|
|
||
|
|
if (typeof elem === 'object') {
|
||
|
|
idStr = elem[0].id;
|
||
|
|
} else {
|
||
|
|
idStr = elem;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (idStr.indexOf('#') < 0) {
|
||
|
|
idStr = `#${idStr}`;
|
||
|
|
}
|
||
|
|
|
||
|
|
var $target = this.$tabTitles.has(`[href$="${idStr}"]`);
|
||
|
|
|
||
|
|
this._handleTabChange($target, historyHandled);
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the height of each panel to the height of the tallest panel.
|
||
|
|
* If enabled in options, gets called on media query change.
|
||
|
|
* If loading content via external source, can be called directly or with _reflow.
|
||
|
|
* If enabled with `data-match-height="true"`, tabs sets to equal height
|
||
|
|
* @function
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
_setHeight() {
|
||
|
|
var max = 0,
|
||
|
|
_this = this; // Lock down the `this` value for the root tabs object
|
||
|
|
|
||
|
|
this.$tabContent
|
||
|
|
.find(`.${this.options.panelClass}`)
|
||
|
|
.css('height', '')
|
||
|
|
.each(function() {
|
||
|
|
|
||
|
|
var panel = $(this),
|
||
|
|
isActive = panel.hasClass(`${_this.options.panelActiveClass}`); // get the options from the parent instead of trying to get them from the child
|
||
|
|
|
||
|
|
if (!isActive) {
|
||
|
|
panel.css({'visibility': 'hidden', 'display': 'block'});
|
||
|
|
}
|
||
|
|
|
||
|
|
var temp = this.getBoundingClientRect().height;
|
||
|
|
|
||
|
|
if (!isActive) {
|
||
|
|
panel.css({
|
||
|
|
'visibility': '',
|
||
|
|
'display': ''
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
max = temp > max ? temp : max;
|
||
|
|
})
|
||
|
|
.css('height', `${max}px`);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Destroys an instance of tabs.
|
||
|
|
* @fires Tabs#destroyed
|
||
|
|
*/
|
||
|
|
_destroy() {
|
||
|
|
this.$element
|
||
|
|
.find(`.${this.options.linkClass}`)
|
||
|
|
.off('.zf.tabs').hide().end()
|
||
|
|
.find(`.${this.options.panelClass}`)
|
||
|
|
.hide();
|
||
|
|
|
||
|
|
if (this.options.matchHeight) {
|
||
|
|
if (this._setHeightMqHandler != null) {
|
||
|
|
$(window).off('changed.zf.mediaquery', this._setHeightMqHandler);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.options.deepLink) {
|
||
|
|
$(window).off('hashchange', this._checkDeepLink);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (this.onLoadListener) {
|
||
|
|
$(window).off(this.onLoadListener);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Tabs.defaults = {
|
||
|
|
/**
|
||
|
|
* Link the location hash to the active pane.
|
||
|
|
* Set the location hash when the active pane changes, and open the corresponding pane when the location changes.
|
||
|
|
* @option
|
||
|
|
* @type {boolean}
|
||
|
|
* @default false
|
||
|
|
*/
|
||
|
|
deepLink: false,
|
||
|
|
|
||
|
|
/**
|
||
|
|
* If `deepLink` is enabled, adjust the deep link scroll to make sure the top of the tab panel is visible
|
||
|
|
* @option
|
||
|
|
* @type {boolean}
|
||
|
|
* @default false
|
||
|
|
*/
|
||
|
|
deepLinkSmudge: false,
|
||
|
|
|
||
|
|
/**
|
||
|
|
* If `deepLinkSmudge` is enabled, animation time (ms) for the deep link adjustment
|
||
|
|
* @option
|
||
|
|
* @type {number}
|
||
|
|
* @default 300
|
||
|
|
*/
|
||
|
|
deepLinkSmudgeDelay: 300,
|
||
|
|
|
||
|
|
/**
|
||
|
|
* If `deepLink` is enabled, update the browser history with the open tab
|
||
|
|
* @option
|
||
|
|
* @type {boolean}
|
||
|
|
* @default false
|
||
|
|
*/
|
||
|
|
updateHistory: false,
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Allows the window to scroll to content of active pane on load.
|
||
|
|
* Not recommended if more than one tab panel per page.
|
||
|
|
* @option
|
||
|
|
* @type {boolean}
|
||
|
|
* @default false
|
||
|
|
*/
|
||
|
|
autoFocus: false,
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Allows keyboard input to 'wrap' around the tab links.
|
||
|
|
* @option
|
||
|
|
* @type {boolean}
|
||
|
|
* @default true
|
||
|
|
*/
|
||
|
|
wrapOnKeys: true,
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Allows the tab content panes to match heights if set to true.
|
||
|
|
* @option
|
||
|
|
* @type {boolean}
|
||
|
|
* @default false
|
||
|
|
*/
|
||
|
|
matchHeight: false,
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Allows active tabs to collapse when clicked.
|
||
|
|
* @option
|
||
|
|
* @type {boolean}
|
||
|
|
* @default false
|
||
|
|
*/
|
||
|
|
activeCollapse: false,
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Class applied to `li`'s in tab link list.
|
||
|
|
* @option
|
||
|
|
* @type {string}
|
||
|
|
* @default 'tabs-title'
|
||
|
|
*/
|
||
|
|
linkClass: 'tabs-title',
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Class applied to the active `li` in tab link list.
|
||
|
|
* @option
|
||
|
|
* @type {string}
|
||
|
|
* @default 'is-active'
|
||
|
|
*/
|
||
|
|
linkActiveClass: 'is-active',
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Class applied to the content containers.
|
||
|
|
* @option
|
||
|
|
* @type {string}
|
||
|
|
* @default 'tabs-panel'
|
||
|
|
*/
|
||
|
|
panelClass: 'tabs-panel',
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Class applied to the active content container.
|
||
|
|
* @option
|
||
|
|
* @type {string}
|
||
|
|
* @default 'is-active'
|
||
|
|
*/
|
||
|
|
panelActiveClass: 'is-active'
|
||
|
|
};
|
||
|
|
|
||
|
|
export {Tabs};
|