'use strict';
!function($) {
/**
* Reveal module.
* @module foundation.reveal
* @requires foundation.util.keyboard
* @requires foundation.util.box
* @requires foundation.util.triggers
* @requires foundation.util.mediaQuery
* @requires foundation.util.motion if using animations
*/
class Reveal {
/**
* Creates a new instance of Reveal.
* @class
* @param {jQuery} element - jQuery object to use for the modal.
* @param {Object} options - optional parameters.
*/
constructor(element, options) {
this.$element = element;
this.options = $.extend({}, Reveal.defaults, this.$element.data(), options);
this._init();
Foundation.registerPlugin(this, 'Reveal');
Foundation.Keyboard.register('Reveal', {
'ENTER': 'open',
'SPACE': 'open',
'ESCAPE': 'close',
'TAB': 'tab_forward',
'SHIFT_TAB': 'tab_backward'
});
}
/**
* Initializes the modal by adding the overlay and close buttons, (if selected).
* @private
*/
_init() {
this.id = this.$element.attr('id');
this.isActive = false;
this.cached = {mq: Foundation.MediaQuery.current};
this.isMobile = mobileSniff();
this.$anchor = $(`[data-open="${this.id}"]`).length ? $(`[data-open="${this.id}"]`) : $(`[data-toggle="${this.id}"]`);
this.$anchor.attr({
'aria-controls': this.id,
'aria-haspopup': true,
'tabindex': 0
});
if (this.options.fullScreen || this.$element.hasClass('full')) {
this.options.fullScreen = true;
this.options.overlay = false;
}
if (this.options.overlay && !this.$overlay) {
this.$overlay = this._makeOverlay(this.id);
}
this.$element.attr({
'role': 'dialog',
'aria-hidden': true,
'data-yeti-box': this.id,
'data-resize': this.id
});
if(this.$overlay) {
this.$element.detach().appendTo(this.$overlay);
} else {
this.$element.detach().appendTo($('body'));
this.$element.addClass('without-overlay');
}
this._events();
if (this.options.deepLink && window.location.hash === ( `#${this.id}`)) {
$(window).one('load.zf.reveal', this.open.bind(this));
}
}
/**
* Creates an overlay div to display behind the modal.
* @private
*/
_makeOverlay(id) {
var $overlay = $('<div></div>')
.addClass('reveal-overlay')
.appendTo('body');
return $overlay;
}
/**
* Updates position of modal
* TODO: Figure out if we actually need to cache these values or if it doesn't matter
* @private
*/
_updatePosition() {
var width = this.$element.outerWidth();
var outerWidth = $(window).width();
var height = this.$element.outerHeight();
var outerHeight = $(window).height();
var left, top;
if (this.options.hOffset === 'auto') {
left = parseInt((outerWidth - width) / 2, 10);
} else {
left = parseInt(this.options.hOffset, 10);
}
if (this.options.vOffset === 'auto') {
if (height > outerHeight) {
top = parseInt(Math.min(100, outerHeight / 10), 10);
} else {
top = parseInt((outerHeight - height) / 4, 10);
}
} else {
top = parseInt(this.options.vOffset, 10);
}
this.$element.css({top: top + 'px'});
// only worry about left if we don't have an overlay or we havea horizontal offset,
// otherwise we're perfectly in the middle
if(!this.$overlay || (this.options.hOffset !== 'auto')) {
this.$element.css({left: left + 'px'});
this.$element.css({margin: '0px'});
}
}
/**
* Adds event handlers for the modal.
* @private
*/
_events() {
var _this = this;
this.$element.on({
'open.zf.trigger': this.open.bind(this),
'close.zf.trigger': (event, $element) => {
if ((event.target === _this.$element[0]) ||
($(event.target).parents('[data-closable]')[0] === $element)) { // only close reveal when it's explicitly called
return this.close.apply(this);
}
},
'toggle.zf.trigger': this.toggle.bind(this),
'resizeme.zf.trigger': function() {
_this._updatePosition();
}
});
if (this.$anchor.length) {
this.$anchor.on('keydown.zf.reveal', function(e) {
if (e.which === 13 || e.which === 32) {
e.stopPropagation();
e.preventDefault();
_this.open();
}
});
}
if (this.options.closeOnClick && this.options.overlay) {
this.$overlay.off('.zf.reveal').on('click.zf.reveal', function(e) {
if (e.target === _this.$element[0] || $.contains(_this.$element[0], e.target)) { return; }
_this.close();
});
}
if (this.options.deepLink) {
$(window).on(`popstate.zf.reveal:${this.id}`, this._handleState.bind(this));
}
}
/**
* Handles modal methods on back/forward button clicks or any other event that triggers popstate.
* @private
*/
_handleState(e) {
if(window.location.hash === ( '#' + this.id) && !this.isActive){ this.open(); }
else{ this.close(); }
}
/**
* Opens the modal controlled by `this.$anchor`, and closes all others by default.
* @function
* @fires Reveal#closeme
* @fires Reveal#open
*/
open() {
if (this.options.deepLink) {
var hash = `#${this.id}`;
if (window.history.pushState) {
window.history.pushState(null, null, hash);
} else {
window.location.hash = hash;
}
}
this.isActive = true;
// Make elements invisible, but remove display: none so we can get size and positioning
this.$element
.css({ 'visibility': 'hidden' })
.show()
.scrollTop(0);
if (this.options.overlay) {
this.$overlay.css({'visibility': 'hidden'}).show();
}
this._updatePosition();
this.$element
.hide()
.css({ 'visibility': '' });
if(this.$overlay) {
this.$overlay.css({'visibility': ''}).hide();
if(this.$element.hasClass('fast')) {
this.$overlay.addClass('fast');
} else if (this.$element.hasClass('slow')) {
this.$overlay.addClass('slow');
}
}
if (!this.options.multipleOpened) {
/**
* Fires immediately before the modal opens.
* Closes any other modals that are currently open
* @event Reveal#closeme
*/
this.$element.trigger('closeme.zf.reveal', this.id);
}
// Motion UI method of reveal
if (this.options.animationIn) {
var _this = this;
function afterAnimationFocus(){
_this.$element
.attr({
'aria-hidden': false,
'tabindex': -1
})
.focus();
console.log('focus');
}
if (this.options.overlay) {
Foundation.Motion.animateIn(this.$overlay, 'fade-in');
}
Foundation.Motion.animateIn(this.$element, this.options.animationIn, () => {
this.focusableElements = Foundation.Keyboard.findFocusable(this.$element);
afterAnimationFocus();
});
}
// jQuery method of reveal
else {
if (this.options.overlay) {
this.$overlay.show(0);
}
this.$element.show(this.options.showDelay);
}
// handle accessibility
this.$element
.attr({
'aria-hidden': false,
'tabindex': -1
})
.focus();
/**
* Fires when the modal has successfully opened.
* @event Reveal#open
*/
this.$element.trigger('open.zf.reveal');
if (this.isMobile) {
this.originalScrollPos = window.pageYOffset;
$('html, body').addClass('is-reveal-open');
}
else {
$('body').addClass('is-reveal-open');
}
setTimeout(() => {
this._extraHandlers();
}, 0);
}
/**
* Adds extra event handlers for the body and window if necessary.
* @private
*/
_extraHandlers() {
var _this = this;
this.focusableElements = Foundation.Keyboard.findFocusable(this.$element);
if (!this.options.overlay && this.options.closeOnClick && !this.options.fullScreen) {
$('body').on('click.zf.reveal', function(e) {
if (e.target === _this.$element[0] || $.contains(_this.$element[0], e.target)) { return; }
_this.close();
});
}
if (this.options.closeOnEsc) {
$(window).on('keydown.zf.reveal', function(e) {
Foundation.Keyboard.handleKey(e, 'Reveal', {
close: function() {
if (_this.options.closeOnEsc) {
_this.close();
_this.$anchor.focus();
}
}
});
});
}
// lock focus within modal while tabbing
this.$element.on('keydown.zf.reveal', function(e) {
var $target = $(this);
// handle keyboard event with keyboard util
Foundation.Keyboard.handleKey(e, 'Reveal', {
tab_forward: function() {
if (_this.$element.find(':focus').is(_this.focusableElements.eq(-1))) { // left modal downwards, setting focus to first element
_this.focusableElements.eq(0).focus();
return true;
}
if (_this.focusableElements.length === 0) { // no focusable elements inside the modal at all, prevent tabbing in general
return true;
}
},
tab_backward: function() {
if (_this.$element.find(':focus').is(_this.focusableElements.eq(0)) || _this.$element.is(':focus')) { // left modal upwards, setting focus to last element
_this.focusableElements.eq(-1).focus();
return true;
}
if (_this.focusableElements.length === 0) { // no focusable elements inside the modal at all, prevent tabbing in general
return true;
}
},
open: function() {
if (_this.$element.find(':focus').is(_this.$element.find('[data-close]'))) {
setTimeout(function() { // set focus back to anchor if close button has been activated
_this.$anchor.focus();
}, 1);
} else if ($target.is(_this.focusableElements)) { // dont't trigger if acual element has focus (i.e. inputs, links, ...)
_this.open();
}
},
close: function() {
if (_this.options.closeOnEsc) {
_this.close();
_this.$anchor.focus();
}
},
handled: function(preventDefault) {
if (preventDefault) {
e.preventDefault();
}
}
});
});
}
/**
* Closes the modal.
* @function
* @fires Reveal#closed
*/
close() {
if (!this.isActive || !this.$element.is(':visible')) {
return false;
}
var _this = this;
// Motion UI method of hiding
if (this.options.animationOut) {
if (this.options.overlay) {
Foundation.Motion.animateOut(this.$overlay, 'fade-out', finishUp);
}
else {
finishUp();
}
Foundation.Motion.animateOut(this.$element, this.options.animationOut);
}
// jQuery method of hiding
else {
if (this.options.overlay) {
this.$overlay.hide(0, finishUp);
}
else {
finishUp();
}
this.$element.hide(this.options.hideDelay);
}
// Conditionals to remove extra event listeners added on open
if (this.options.closeOnEsc) {
$(window).off('keydown.zf.reveal');
}
if (!this.options.overlay && this.options.closeOnClick) {
$('body').off('click.zf.reveal');
}
this.$element.off('keydown.zf.reveal');
function finishUp() {
if (_this.isMobile) {
$('html, body').removeClass('is-reveal-open');
if(_this.originalScrollPos) {
$('body').scrollTop(_this.originalScrollPos);
_this.originalScrollPos = null;
}
}
else {
$('body').removeClass('is-reveal-open');
}
_this.$element.attr('aria-hidden', true);
/**
* Fires when the modal is done closing.
* @event Reveal#closed
*/
_this.$element.trigger('closed.zf.reveal');
}
/**
* Resets the modal content
* This prevents a running video to keep going in the background
*/
if (this.options.resetOnClose) {
this.$element.html(this.$element.html());
}
this.isActive = false;
if (_this.options.deepLink) {
if (window.history.replaceState) {
window.history.replaceState("", document.title, window.location.pathname);
} else {
window.location.hash = '';
}
}
}
/**
* Toggles the open/closed state of a modal.
* @function
*/
toggle() {
if (this.isActive) {
this.close();
} else {
this.open();
}
};
/**
* Destroys an instance of a modal.
* @function
*/
destroy() {
if (this.options.overlay) {
this.$element.appendTo($('body')); // move $element outside of $overlay to prevent error unregisterPlugin()
this.$overlay.hide().off().remove();
}
this.$element.hide().off();
this.$anchor.off('.zf');
$(window).off(`.zf.reveal:${this.id}`);
Foundation.unregisterPlugin(this);
};
}
Reveal.defaults = {
/**
* Motion-UI class to use for animated elements. If none used, defaults to simple show/hide.
* @option
* @example 'slide-in-left'
*/
animationIn: '',
/**
* Motion-UI class to use for animated elements. If none used, defaults to simple show/hide.
* @option
* @example 'slide-out-right'
*/
animationOut: '',
/**
* Time, in ms, to delay the opening of a modal after a click if no animation used.
* @option
* @example 10
*/
showDelay: 0,
/**
* Time, in ms, to delay the closing of a modal after a click if no animation used.
* @option
* @example 10
*/
hideDelay: 0,
/**
* Allows a click on the body/overlay to close the modal.
* @option
* @example true
*/
closeOnClick: true,
/**
* Allows the modal to close if the user presses the `ESCAPE` key.
* @option
* @example true
*/
closeOnEsc: true,
/**
* If true, allows multiple modals to be displayed at once.
* @option
* @example false
*/
multipleOpened: false,
/**
* Distance, in pixels, the modal should push down from the top of the screen.
* @option
* @example auto
*/
vOffset: 'auto',
/**
* Distance, in pixels, the modal should push in from the side of the screen.
* @option
* @example auto
*/
hOffset: 'auto',
/**
* Allows the modal to be fullscreen, completely blocking out the rest of the view. JS checks for this as well.
* @option
* @example false
*/
fullScreen: false,
/**
* Percentage of screen height the modal should push up from the bottom of the view.
* @option
* @example 10
*/
btmOffsetPct: 10,
/**
* Allows the modal to generate an overlay div, which will cover the view when modal opens.
* @option
* @example true
*/
overlay: true,
/**
* Allows the modal to remove and reinject markup on close. Should be true if using video elements w/o using provider's api, otherwise, videos will continue to play in the background.
* @option
* @example false
*/
resetOnClose: false,
/**
* Allows the modal to alter the url on open/close, and allows the use of the `back` button to close modals. ALSO, allows a modal to auto-maniacally open on page load IF the hash === the modal's user-set id.
* @option
* @example false
*/
deepLink: false
};
// Window exports
Foundation.plugin(Reveal, 'Reveal');
function iPhoneSniff() {
return /iP(ad|hone|od).*OS/.test(window.navigator.userAgent);
}
function androidSniff() {
return /Android/.test(window.navigator.userAgent);
}
function mobileSniff() {
return iPhoneSniff() || androidSniff();
}
}(jQuery);