464 lines
14 KiB
JavaScript
464 lines
14 KiB
JavaScript
;(function ($, window, document, undefined) {
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'use strict';
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Foundation.libs.dropdown = {
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name : 'dropdown',
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version : '5.5.2',
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settings : {
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active_class : 'open',
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disabled_class : 'disabled',
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mega_class : 'mega',
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align : 'bottom',
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is_hover : false,
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hover_timeout : 150,
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opened : function () {},
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closed : function () {}
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},
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init : function (scope, method, options) {
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Foundation.inherit(this, 'throttle');
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$.extend(true, this.settings, method, options);
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this.bindings(method, options);
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},
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events : function (scope) {
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var self = this,
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S = self.S;
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S(this.scope)
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.off('.dropdown')
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.on('click.fndtn.dropdown', '[' + this.attr_name() + ']', function (e) {
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var settings = S(this).data(self.attr_name(true) + '-init') || self.settings;
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if (!settings.is_hover || Modernizr.touch) {
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e.preventDefault();
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if (S(this).parent('[data-reveal-id]').length) {
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e.stopPropagation();
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}
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self.toggle($(this));
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}
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})
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.on('mouseenter.fndtn.dropdown', '[' + this.attr_name() + '], [' + this.attr_name() + '-content]', function (e) {
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var $this = S(this),
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dropdown,
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target;
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clearTimeout(self.timeout);
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if ($this.data(self.data_attr())) {
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dropdown = S('#' + $this.data(self.data_attr()));
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target = $this;
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} else {
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dropdown = $this;
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target = S('[' + self.attr_name() + '="' + dropdown.attr('id') + '"]');
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}
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var settings = target.data(self.attr_name(true) + '-init') || self.settings;
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if (S(e.currentTarget).data(self.data_attr()) && settings.is_hover) {
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self.closeall.call(self);
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}
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if (settings.is_hover) {
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self.open.apply(self, [dropdown, target]);
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}
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})
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.on('mouseleave.fndtn.dropdown', '[' + this.attr_name() + '], [' + this.attr_name() + '-content]', function (e) {
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var $this = S(this);
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var settings;
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if ($this.data(self.data_attr())) {
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settings = $this.data(self.data_attr(true) + '-init') || self.settings;
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} else {
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var target = S('[' + self.attr_name() + '="' + S(this).attr('id') + '"]'),
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settings = target.data(self.attr_name(true) + '-init') || self.settings;
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}
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self.timeout = setTimeout(function () {
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if ($this.data(self.data_attr())) {
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if (settings.is_hover) {
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self.close.call(self, S('#' + $this.data(self.data_attr())));
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}
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} else {
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if (settings.is_hover) {
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self.close.call(self, $this);
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}
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}
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}.bind(this), settings.hover_timeout);
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})
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.on('click.fndtn.dropdown', function (e) {
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var parent = S(e.target).closest('[' + self.attr_name() + '-content]');
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var links = parent.find('a');
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if (links.length > 0 && parent.attr('aria-autoclose') !== 'false') {
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self.close.call(self, S('[' + self.attr_name() + '-content]'));
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}
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if (e.target !== document && !$.contains(document.documentElement, e.target)) {
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return;
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}
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if (S(e.target).closest('[' + self.attr_name() + ']').length > 0) {
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return;
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}
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if (!(S(e.target).data('revealId')) &&
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(parent.length > 0 && (S(e.target).is('[' + self.attr_name() + '-content]') ||
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$.contains(parent.first()[0], e.target)))) {
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e.stopPropagation();
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return;
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}
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self.close.call(self, S('[' + self.attr_name() + '-content]'));
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})
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.on('opened.fndtn.dropdown', '[' + self.attr_name() + '-content]', function () {
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self.settings.opened.call(this);
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})
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.on('closed.fndtn.dropdown', '[' + self.attr_name() + '-content]', function () {
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self.settings.closed.call(this);
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});
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S(window)
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.off('.dropdown')
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.on('resize.fndtn.dropdown', self.throttle(function () {
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self.resize.call(self);
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}, 50));
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this.resize();
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},
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close : function (dropdown) {
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var self = this;
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dropdown.each(function (idx) {
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var original_target = $('[' + self.attr_name() + '=' + dropdown[idx].id + ']') || $('aria-controls=' + dropdown[idx].id + ']');
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original_target.attr('aria-expanded', 'false');
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if (self.S(this).hasClass(self.settings.active_class)) {
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self.S(this)
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.css(Foundation.rtl ? 'right' : 'left', '-99999px')
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.attr('aria-hidden', 'true')
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.removeClass(self.settings.active_class)
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.prev('[' + self.attr_name() + ']')
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.removeClass(self.settings.active_class)
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.removeData('target');
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self.S(this).trigger('closed.fndtn.dropdown', [dropdown]);
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}
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});
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dropdown.removeClass('f-open-' + this.attr_name(true));
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},
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closeall : function () {
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var self = this;
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$.each(self.S('.f-open-' + this.attr_name(true)), function () {
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self.close.call(self, self.S(this));
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});
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},
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open : function (dropdown, target) {
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this
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.css(dropdown
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.addClass(this.settings.active_class), target);
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dropdown.prev('[' + this.attr_name() + ']').addClass(this.settings.active_class);
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dropdown.data('target', target.get(0)).trigger('opened.fndtn.dropdown', [dropdown, target]);
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dropdown.attr('aria-hidden', 'false');
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target.attr('aria-expanded', 'true');
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dropdown.focus();
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dropdown.addClass('f-open-' + this.attr_name(true));
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},
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data_attr : function () {
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if (this.namespace.length > 0) {
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return this.namespace + '-' + this.name;
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}
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return this.name;
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},
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toggle : function (target) {
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if (target.hasClass(this.settings.disabled_class)) {
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return;
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}
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var dropdown = this.S('#' + target.data(this.data_attr()));
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if (dropdown.length === 0) {
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// No dropdown found, not continuing
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return;
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}
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this.close.call(this, this.S('[' + this.attr_name() + '-content]').not(dropdown));
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if (dropdown.hasClass(this.settings.active_class)) {
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this.close.call(this, dropdown);
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if (dropdown.data('target') !== target.get(0)) {
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this.open.call(this, dropdown, target);
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}
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} else {
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this.open.call(this, dropdown, target);
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}
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},
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resize : function () {
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var dropdown = this.S('[' + this.attr_name() + '-content].open');
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var target = $(dropdown.data("target"));
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if (dropdown.length && target.length) {
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this.css(dropdown, target);
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}
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},
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css : function (dropdown, target) {
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var left_offset = Math.max((target.width() - dropdown.width()) / 2, 8),
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settings = target.data(this.attr_name(true) + '-init') || this.settings,
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parentOverflow = dropdown.parent().css('overflow-y') || dropdown.parent().css('overflow');
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this.clear_idx();
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if (this.small()) {
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var p = this.dirs.bottom.call(dropdown, target, settings);
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dropdown.attr('style', '').removeClass('drop-left drop-right drop-top').css({
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position : 'absolute',
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width : '95%',
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'max-width' : 'none',
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top : p.top
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});
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dropdown.css(Foundation.rtl ? 'right' : 'left', left_offset);
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}
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// detect if dropdown is in an overflow container
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else if (parentOverflow !== 'visible') {
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var offset = target[0].offsetTop + target[0].offsetHeight;
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dropdown.attr('style', '').css({
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position : 'absolute',
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top : offset
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});
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dropdown.css(Foundation.rtl ? 'right' : 'left', left_offset);
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}
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else {
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this.style(dropdown, target, settings);
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}
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return dropdown;
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},
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style : function (dropdown, target, settings) {
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var css = $.extend({position : 'absolute'},
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this.dirs[settings.align].call(dropdown, target, settings));
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dropdown.attr('style', '').css(css);
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},
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// return CSS property object
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// `this` is the dropdown
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dirs : {
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// Calculate target offset
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_base : function (t) {
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var o_p = this.offsetParent(),
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o = o_p.offset(),
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p = t.offset();
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p.top -= o.top;
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p.left -= o.left;
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//set some flags on the p object to pass along
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p.missRight = false;
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p.missTop = false;
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p.missLeft = false;
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p.leftRightFlag = false;
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//lets see if the panel will be off the screen
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//get the actual width of the page and store it
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var actualBodyWidth;
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if (document.getElementsByClassName('row')[0]) {
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actualBodyWidth = document.getElementsByClassName('row')[0].clientWidth;
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} else {
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actualBodyWidth = window.innerWidth;
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}
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var actualMarginWidth = (window.innerWidth - actualBodyWidth) / 2;
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var actualBoundary = actualBodyWidth;
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if (!this.hasClass('mega')) {
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//miss top
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if (t.offset().top <= this.outerHeight()) {
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p.missTop = true;
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actualBoundary = window.innerWidth - actualMarginWidth;
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p.leftRightFlag = true;
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}
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//miss right
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if (t.offset().left + this.outerWidth() > t.offset().left + actualMarginWidth && t.offset().left - actualMarginWidth > this.outerWidth()) {
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p.missRight = true;
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p.missLeft = false;
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}
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//miss left
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if (t.offset().left - this.outerWidth() <= 0) {
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p.missLeft = true;
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p.missRight = false;
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}
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}
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return p;
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},
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top : function (t, s) {
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var self = Foundation.libs.dropdown,
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p = self.dirs._base.call(this, t);
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this.addClass('drop-top');
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if (p.missTop == true) {
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p.top = p.top + t.outerHeight() + this.outerHeight();
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this.removeClass('drop-top');
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}
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if (p.missRight == true) {
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p.left = p.left - this.outerWidth() + t.outerWidth();
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}
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if (t.outerWidth() < this.outerWidth() || self.small() || this.hasClass(s.mega_menu)) {
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self.adjust_pip(this, t, s, p);
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}
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if (Foundation.rtl) {
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return {left : p.left - this.outerWidth() + t.outerWidth(),
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top : p.top - this.outerHeight()};
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}
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return {left : p.left, top : p.top - this.outerHeight()};
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},
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bottom : function (t, s) {
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var self = Foundation.libs.dropdown,
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p = self.dirs._base.call(this, t);
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if (p.missRight == true) {
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p.left = p.left - this.outerWidth() + t.outerWidth();
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}
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if (t.outerWidth() < this.outerWidth() || self.small() || this.hasClass(s.mega_menu)) {
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self.adjust_pip(this, t, s, p);
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}
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if (self.rtl) {
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return {left : p.left - this.outerWidth() + t.outerWidth(), top : p.top + t.outerHeight()};
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}
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return {left : p.left, top : p.top + t.outerHeight()};
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},
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left : function (t, s) {
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var p = Foundation.libs.dropdown.dirs._base.call(this, t);
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this.addClass('drop-left');
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if (p.missLeft == true) {
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p.left = p.left + this.outerWidth();
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p.top = p.top + t.outerHeight();
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this.removeClass('drop-left');
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}
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return {left : p.left - this.outerWidth(), top : p.top};
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},
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right : function (t, s) {
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var p = Foundation.libs.dropdown.dirs._base.call(this, t);
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this.addClass('drop-right');
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if (p.missRight == true) {
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p.left = p.left - this.outerWidth();
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p.top = p.top + t.outerHeight();
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this.removeClass('drop-right');
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} else {
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p.triggeredRight = true;
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}
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var self = Foundation.libs.dropdown;
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if (t.outerWidth() < this.outerWidth() || self.small() || this.hasClass(s.mega_menu)) {
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self.adjust_pip(this, t, s, p);
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}
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return {left : p.left + t.outerWidth(), top : p.top};
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}
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},
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// Insert rule to style psuedo elements
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adjust_pip : function (dropdown, target, settings, position) {
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var sheet = Foundation.stylesheet,
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pip_offset_base = 8;
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if (dropdown.hasClass(settings.mega_class)) {
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pip_offset_base = position.left + (target.outerWidth() / 2) - 8;
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} else if (this.small()) {
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pip_offset_base += position.left - 8;
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}
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this.rule_idx = sheet.cssRules.length;
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//default
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var sel_before = '.f-dropdown.open:before',
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sel_after = '.f-dropdown.open:after',
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css_before = 'left: ' + pip_offset_base + 'px;',
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css_after = 'left: ' + (pip_offset_base - 1) + 'px;';
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if (position.missRight == true) {
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pip_offset_base = dropdown.outerWidth() - 23;
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sel_before = '.f-dropdown.open:before',
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sel_after = '.f-dropdown.open:after',
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css_before = 'left: ' + pip_offset_base + 'px;',
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css_after = 'left: ' + (pip_offset_base - 1) + 'px;';
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}
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//just a case where right is fired, but its not missing right
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if (position.triggeredRight == true) {
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sel_before = '.f-dropdown.open:before',
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sel_after = '.f-dropdown.open:after',
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css_before = 'left:-12px;',
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css_after = 'left:-14px;';
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}
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if (sheet.insertRule) {
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sheet.insertRule([sel_before, '{', css_before, '}'].join(' '), this.rule_idx);
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sheet.insertRule([sel_after, '{', css_after, '}'].join(' '), this.rule_idx + 1);
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} else {
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sheet.addRule(sel_before, css_before, this.rule_idx);
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sheet.addRule(sel_after, css_after, this.rule_idx + 1);
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}
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},
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// Remove old dropdown rule index
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clear_idx : function () {
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var sheet = Foundation.stylesheet;
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if (typeof this.rule_idx !== 'undefined') {
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sheet.deleteRule(this.rule_idx);
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sheet.deleteRule(this.rule_idx);
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delete this.rule_idx;
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}
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},
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small : function () {
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return matchMedia(Foundation.media_queries.small).matches &&
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!matchMedia(Foundation.media_queries.medium).matches;
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},
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off : function () {
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this.S(this.scope).off('.fndtn.dropdown');
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this.S('html, body').off('.fndtn.dropdown');
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this.S(window).off('.fndtn.dropdown');
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this.S('[data-dropdown-content]').off('.fndtn.dropdown');
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},
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reflow : function () {}
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};
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}(jQuery, window, window.document));
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