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Code Issues Releases Wiki Activity

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This commit is contained in:
Mark Otto
2017-04-16 13:54:07 -07:00
parent 6d64afe508
commit bc0cf36dc8
28 changed files with 100 additions and 173 deletions
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44
js/dist/dropdown.js vendored
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@@ -25,10 +25,11 @@ var Dropdown = function ($) {
var JQUERY_NO_CONFLICT = $.fn[NAME];
var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key
var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key
var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key
var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key
var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key
var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse)
var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + '|' + ARROW_DOWN_KEYCODE + '|' + ESCAPE_KEYCODE + '|' + SPACE_KEYCODE);
var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + '|' + ARROW_DOWN_KEYCODE + '|' + ESCAPE_KEYCODE);
var Event = {
HIDE: 'hide' + EVENT_KEY,
@@ -37,24 +38,21 @@ var Dropdown = function ($) {
SHOWN: 'shown' + EVENT_KEY,
CLICK: 'click' + EVENT_KEY,
CLICK_DATA_API: 'click' + EVENT_KEY + DATA_API_KEY,
FOCUSIN_DATA_API: 'focusin' + EVENT_KEY + DATA_API_KEY,
KEYDOWN_DATA_API: 'keydown' + EVENT_KEY + DATA_API_KEY
KEYDOWN_DATA_API: 'keydown' + EVENT_KEY + DATA_API_KEY,
KEYUP_DATA_API: 'keyup' + EVENT_KEY + DATA_API_KEY
};
var ClassName = {
BACKDROP: 'dropdown-backdrop',
DISABLED: 'disabled',
SHOW: 'show'
};
var Selector = {
BACKDROP: '.dropdown-backdrop',
DATA_TOGGLE: '[data-toggle="dropdown"]',
FORM_CHILD: '.dropdown form',
ROLE_MENU: '[role="menu"]',
ROLE_LISTBOX: '[role="listbox"]',
MENU: '.dropdown-menu',
NAVBAR_NAV: '.navbar-nav',
VISIBLE_ITEMS: '[role="menu"] li:not(.disabled) a, ' + '[role="listbox"] li:not(.disabled) a'
VISIBLE_ITEMS: '.dropdown-menu .dropdown-item:not(.disabled)'
};
/**
@@ -101,14 +99,12 @@ var Dropdown = function ($) {
return false;
}
// set the backdrop only if the dropdown menu will be opened
// if this is a touch-enabled device we add extra
// empty mouseover listeners to the body's immediate children;
// only needed because of broken event delegation on iOS
// https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html
if ('ontouchstart' in document.documentElement && !$(parent).closest(Selector.NAVBAR_NAV).length) {
// if mobile we use a backdrop because click events don't delegate
var dropdown = document.createElement('div');
dropdown.className = ClassName.BACKDROP;
$(dropdown).insertBefore(this);
$(dropdown).on('click', Dropdown._clearMenus);
$('body').children().on('mouseover', '*', $.noop);
}
this.focus();
@@ -153,7 +149,7 @@ var Dropdown = function ($) {
};
Dropdown._clearMenus = function _clearMenus(event) {
if (event && event.which === RIGHT_MOUSE_BUTTON_WHICH) {
if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
return;
}
@@ -169,7 +165,7 @@ var Dropdown = function ($) {
continue;
}
if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'focusin') && $.contains(parent, event.target)) {
if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && $.contains(parent, event.target)) {
continue;
}
@@ -179,10 +175,10 @@ var Dropdown = function ($) {
continue;
}
// remove backdrop only if the dropdown menu will be hidden
var backdrop = $(parent).find(Selector.BACKDROP)[0];
if (backdrop) {
backdrop.parentNode.removeChild(backdrop);
// if this is a touch-enabled device we remove the extra
// empty mouseover listeners we added for iOS support
if ('ontouchstart' in document.documentElement) {
$('body').children().off('mouseover', '*', $.noop);
}
toggles[i].setAttribute('aria-expanded', 'false');
@@ -203,7 +199,7 @@ var Dropdown = function ($) {
};
Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) {
if (!REGEXP_KEYDOWN.test(event.which) || /input|textarea/i.test(event.target.tagName)) {
if (!REGEXP_KEYDOWN.test(event.which) || /button/i.test(event.target.tagName) && event.which === SPACE_KEYCODE || /input|textarea/i.test(event.target.tagName)) {
return;
}
@@ -217,7 +213,7 @@ var Dropdown = function ($) {
var parent = Dropdown._getParentFromElement(this);
var isActive = $(parent).hasClass(ClassName.SHOW);
if (!isActive && event.which !== ESCAPE_KEYCODE || isActive && event.which === ESCAPE_KEYCODE) {
if (!isActive && (event.which !== ESCAPE_KEYCODE || event.which !== SPACE_KEYCODE) || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
if (event.which === ESCAPE_KEYCODE) {
var toggle = $(parent).find(Selector.DATA_TOGGLE)[0];
@@ -269,7 +265,7 @@ var Dropdown = function ($) {
* ------------------------------------------------------------------------
*/
$(document).on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.ROLE_MENU, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.ROLE_LISTBOX, Dropdown._dataApiKeydownHandler).on(Event.CLICK_DATA_API + ' ' + Event.FOCUSIN_DATA_API, Dropdown._clearMenus).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, Dropdown.prototype.toggle).on(Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) {
$(document).on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler).on(Event.CLICK_DATA_API + ' ' + Event.KEYUP_DATA_API, Dropdown._clearMenus).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, Dropdown.prototype.toggle).on(Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) {
e.stopPropagation();
});