mirror of
https://github.com/jquery/jquery-ui.git
synced 2024-11-21 11:04:24 +00:00
545 lines
15 KiB
JavaScript
545 lines
15 KiB
JavaScript
/*
|
|
* jQuery UI Menu @VERSION
|
|
*
|
|
* Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
|
|
* Dual licensed under the MIT or GPL Version 2 licenses.
|
|
* http://jquery.org/license
|
|
*
|
|
* http://docs.jquery.com/UI/Menu
|
|
*
|
|
* Depends:
|
|
* jquery.ui.core.js
|
|
* jquery.ui.widget.js
|
|
*/
|
|
(function($) {
|
|
|
|
var idIncrement = 0;
|
|
|
|
$.widget( "ui.menu", {
|
|
version: "@VERSION",
|
|
defaultElement: "<ul>",
|
|
delay: 150,
|
|
options: {
|
|
items: "ul",
|
|
position: {
|
|
my: "left top",
|
|
at: "right top"
|
|
},
|
|
trigger: null
|
|
},
|
|
_create: function() {
|
|
this.activeMenu = this.element;
|
|
this.isScrolling = false;
|
|
this.menuId = this.element.attr( "id" ) || "ui-menu-" + idIncrement++;
|
|
if ( this.element.find( ".ui-icon" ).length ) {
|
|
this.element.addClass( "ui-menu-icons" );
|
|
}
|
|
this.element
|
|
.addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
|
|
.attr({
|
|
id: this.menuId,
|
|
role: "menu"
|
|
})
|
|
// Prevent focus from sticking to links inside menu after clicking
|
|
// them (focus should always stay on UL during navigation).
|
|
// If the link is clicked, redirect focus to the menu.
|
|
// TODO move to _bind below
|
|
.bind( "mousedown.menu", function( event ) {
|
|
if ( $( event.target).is( "a" ) ) {
|
|
event.preventDefault();
|
|
$( this ).focus( 1 );
|
|
}
|
|
})
|
|
// need to catch all clicks on disabled menu
|
|
// not possible through _bind
|
|
.bind( "click.menu", $.proxy( function( event ) {
|
|
if ( this.options.disabled ) {
|
|
event.preventDefault();
|
|
}
|
|
}, this));
|
|
this._bind({
|
|
"click .ui-menu-item:has(a)": function( event ) {
|
|
event.stopImmediatePropagation();
|
|
var target = $( event.currentTarget );
|
|
// it's possible to click an item without hovering it (#7085)
|
|
if ( !this.active || ( this.active[ 0 ] !== target[ 0 ] ) ) {
|
|
this.focus( event, target );
|
|
}
|
|
this.select( event );
|
|
},
|
|
"mouseover .ui-menu-item": function( event ) {
|
|
event.stopImmediatePropagation();
|
|
if ( !this.isScrolling ) {
|
|
var target = $( event.currentTarget );
|
|
// Remove ui-state-active class from siblings of the newly focused menu item to avoid a jump caused by adjacent elements both having a class with a border
|
|
target.siblings().children( ".ui-state-active" ).removeClass( "ui-state-active" );
|
|
this.focus( event, target );
|
|
}
|
|
this.isScrolling = false;
|
|
},
|
|
"mouseleave": "collapseAll",
|
|
"mouseleave .ui-menu": "collapseAll",
|
|
"mouseout .ui-menu-item": "blur",
|
|
"focus": function( event ) {
|
|
this.focus( event, $( event.target ).children( ".ui-menu-item:first" ) );
|
|
},
|
|
blur: function( event ) {
|
|
this._delay( function() {
|
|
if ( ! $.contains( this.element[0], document.activeElement ) ) {
|
|
this.collapseAll( event );
|
|
}
|
|
}, 0);
|
|
},
|
|
scroll: function( event ) {
|
|
// Keep track of scrolling to prevent mouseover from firing inadvertently when scrolling the menu
|
|
this.isScrolling = true;
|
|
}
|
|
});
|
|
|
|
this.refresh();
|
|
|
|
this.element.attr( "tabIndex", 0 );
|
|
this._bind({
|
|
"keydown": function( event ) {
|
|
switch ( event.keyCode ) {
|
|
case $.ui.keyCode.PAGE_UP:
|
|
this.previousPage( event );
|
|
event.preventDefault();
|
|
event.stopImmediatePropagation();
|
|
break;
|
|
case $.ui.keyCode.PAGE_DOWN:
|
|
this.nextPage( event );
|
|
event.preventDefault();
|
|
event.stopImmediatePropagation();
|
|
break;
|
|
case $.ui.keyCode.HOME:
|
|
this._move( "first", "first", event );
|
|
event.preventDefault();
|
|
event.stopImmediatePropagation();
|
|
break;
|
|
case $.ui.keyCode.END:
|
|
this._move( "last", "last", event );
|
|
event.preventDefault();
|
|
event.stopImmediatePropagation();
|
|
break;
|
|
case $.ui.keyCode.UP:
|
|
this.previous( event );
|
|
event.preventDefault();
|
|
event.stopImmediatePropagation();
|
|
break;
|
|
case $.ui.keyCode.DOWN:
|
|
this.next( event );
|
|
event.preventDefault();
|
|
event.stopImmediatePropagation();
|
|
break;
|
|
case $.ui.keyCode.LEFT:
|
|
if (this.collapse( event )) {
|
|
event.stopImmediatePropagation();
|
|
}
|
|
event.preventDefault();
|
|
break;
|
|
case $.ui.keyCode.RIGHT:
|
|
if (this.expand( event )) {
|
|
event.stopImmediatePropagation();
|
|
}
|
|
event.preventDefault();
|
|
break;
|
|
case $.ui.keyCode.ENTER:
|
|
if ( this.active.children( "a[aria-haspopup='true']" ).length ) {
|
|
if ( this.expand( event ) ) {
|
|
event.stopImmediatePropagation();
|
|
}
|
|
}
|
|
else {
|
|
this.select( event );
|
|
event.stopImmediatePropagation();
|
|
}
|
|
event.preventDefault();
|
|
break;
|
|
case $.ui.keyCode.ESCAPE:
|
|
if ( this.collapse( event ) ) {
|
|
event.stopImmediatePropagation();
|
|
}
|
|
event.preventDefault();
|
|
break;
|
|
default:
|
|
event.stopPropagation();
|
|
clearTimeout( this.filterTimer );
|
|
var match,
|
|
prev = this.previousFilter || "",
|
|
character = String.fromCharCode( event.keyCode ),
|
|
skip = false;
|
|
|
|
if (character == prev) {
|
|
skip = true;
|
|
} else {
|
|
character = prev + character;
|
|
}
|
|
function escape( value ) {
|
|
return value.replace( /[-[\]{}()*+?.,\\^$|#\s]/g , "\\$&" );
|
|
}
|
|
match = this.activeMenu.children( ".ui-menu-item" ).filter( function() {
|
|
return new RegExp("^" + escape(character), "i")
|
|
.test( $( this ).children( "a" ).text() );
|
|
});
|
|
match = skip && match.index(this.active.next()) != -1 ? this.active.nextAll(".ui-menu-item") : match;
|
|
if ( !match.length ) {
|
|
character = String.fromCharCode(event.keyCode);
|
|
match = this.activeMenu.children(".ui-menu-item").filter( function() {
|
|
return new RegExp("^" + escape(character), "i")
|
|
.test( $( this ).children( "a" ).text() );
|
|
});
|
|
}
|
|
if ( match.length ) {
|
|
this.focus( event, match );
|
|
if (match.length > 1) {
|
|
this.previousFilter = character;
|
|
this.filterTimer = this._delay( function() {
|
|
delete this.previousFilter;
|
|
}, 1000 );
|
|
} else {
|
|
delete this.previousFilter;
|
|
}
|
|
} else {
|
|
delete this.previousFilter;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
this._bind( document, {
|
|
click: function( event ) {
|
|
if ( !$( event.target ).closest( ".ui-menu" ).length ) {
|
|
this.collapseAll( event );
|
|
}
|
|
}
|
|
});
|
|
|
|
if ( this.options.trigger ) {
|
|
this.element.popup({
|
|
trigger: this.options.trigger,
|
|
managed: true,
|
|
focusPopup: $.proxy( function( event, ui ) {
|
|
this.focus( event, this.element.children( ".ui-menu-item" ).first() );
|
|
this.element.focus( 1 );
|
|
}, this)
|
|
});
|
|
}
|
|
},
|
|
|
|
_destroy: function() {
|
|
//destroy (sub)menus
|
|
if ( this.options.trigger ) {
|
|
this.element.popup( "destroy" );
|
|
}
|
|
this.element
|
|
.removeAttr( "aria-activedescendant" )
|
|
.find( ".ui-menu" )
|
|
.andSelf()
|
|
.removeClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
|
|
.removeAttr( "role" )
|
|
.removeAttr( "tabIndex" )
|
|
.removeAttr( "aria-labelledby" )
|
|
.removeAttr( "aria-expanded" )
|
|
.removeAttr( "aria-hidden" )
|
|
.show();
|
|
|
|
//destroy menu items
|
|
this.element.find( ".ui-menu-item" )
|
|
.unbind( ".menu" )
|
|
.removeClass( "ui-menu-item" )
|
|
.removeAttr( "role" )
|
|
.children( "a" )
|
|
.removeClass( "ui-corner-all ui-state-hover" )
|
|
.removeAttr( "tabIndex" )
|
|
.removeAttr( "role" )
|
|
.removeAttr( "aria-haspopup" )
|
|
.removeAttr( "id" )
|
|
.children( ".ui-icon" )
|
|
.remove();
|
|
},
|
|
|
|
refresh: function() {
|
|
// initialize nested menus
|
|
var submenus = this.element.find( this.options.items + ":not( .ui-menu )" )
|
|
.addClass( "ui-menu ui-widget ui-widget-content ui-corner-all" )
|
|
.attr( "role", "menu" )
|
|
.hide()
|
|
.attr( "aria-hidden", "true" )
|
|
.attr( "aria-expanded", "false" );
|
|
|
|
// don't refresh list items that are already adapted
|
|
var menuId = this.menuId;
|
|
submenus.add( this.element ).children( ":not( .ui-menu-item ):has( a )" )
|
|
.addClass( "ui-menu-item" )
|
|
.attr( "role", "presentation" )
|
|
.children( "a" )
|
|
.addClass( "ui-corner-all" )
|
|
.attr( "tabIndex", -1 )
|
|
.attr( "role", "menuitem" )
|
|
.attr( "id", function( i ) {
|
|
return menuId + "-" + i;
|
|
});
|
|
|
|
submenus.each( function() {
|
|
var menu = $( this ),
|
|
item = menu.prev( "a" );
|
|
|
|
item.attr( "aria-haspopup", "true" )
|
|
.prepend( '<span class="ui-menu-icon ui-icon ui-icon-carat-1-e"></span>' );
|
|
menu.attr( "aria-labelledby", item.attr( "id" ) );
|
|
});
|
|
},
|
|
|
|
focus: function( event, item ) {
|
|
this.blur( event );
|
|
|
|
if ( this._hasScroll() ) {
|
|
var borderTop = parseFloat( $.curCSS( this.activeMenu[0], "borderTopWidth", true ) ) || 0,
|
|
paddingTop = parseFloat( $.curCSS( this.activeMenu[0], "paddingTop", true ) ) || 0,
|
|
offset = item.offset().top - this.activeMenu.offset().top - borderTop - paddingTop,
|
|
scroll = this.activeMenu.scrollTop(),
|
|
elementHeight = this.activeMenu.height(),
|
|
itemHeight = item.height();
|
|
|
|
if ( offset < 0 ) {
|
|
this.activeMenu.scrollTop( scroll + offset );
|
|
} else if ( offset + itemHeight > elementHeight ) {
|
|
this.activeMenu.scrollTop( scroll + offset - elementHeight + itemHeight );
|
|
}
|
|
}
|
|
|
|
this.active = item.first()
|
|
.children( "a" )
|
|
.addClass( "ui-state-focus" )
|
|
.end();
|
|
this.element.attr( "aria-activedescendant", this.active.children( "a" ).attr( "id" ) );
|
|
|
|
// highlight active parent menu item, if any
|
|
this.active.parent().closest( ".ui-menu-item" ).children( "a:first" ).addClass( "ui-state-active" );
|
|
|
|
this.timer = this._delay( function() {
|
|
this._close();
|
|
}, this.delay );
|
|
|
|
var nested = $( "> .ui-menu", item );
|
|
if ( nested.length && ( /^mouse/.test( event.type ) ) ) {
|
|
this._startOpening(nested);
|
|
}
|
|
this.activeMenu = item.parent();
|
|
|
|
this._trigger( "focus", event, { item: item } );
|
|
},
|
|
|
|
blur: function( event ) {
|
|
if ( !this.active ) {
|
|
return;
|
|
}
|
|
|
|
clearTimeout( this.timer );
|
|
|
|
this.active.children( "a" ).removeClass( "ui-state-focus" );
|
|
this.active = null;
|
|
|
|
this._trigger( "blur", event, { item: this.active } );
|
|
},
|
|
|
|
_startOpening: function( submenu ) {
|
|
clearTimeout( this.timer );
|
|
|
|
// Don't open if already open fixes a Firefox bug that caused a .5 pixel
|
|
// shift in the submenu position when mousing over the carat icon
|
|
if ( submenu.attr( "aria-hidden" ) !== "true" ) {
|
|
return;
|
|
}
|
|
|
|
this.timer = this._delay( function() {
|
|
this._close();
|
|
this._open( submenu );
|
|
}, this.delay );
|
|
},
|
|
|
|
_open: function( submenu ) {
|
|
clearTimeout( this.timer );
|
|
this.element
|
|
.find( ".ui-menu" )
|
|
.not( submenu.parents() )
|
|
.hide()
|
|
.attr( "aria-hidden", "true" );
|
|
|
|
var position = $.extend({}, {
|
|
of: this.active
|
|
}, $.type(this.options.position) == "function"
|
|
? this.options.position(this.active)
|
|
: this.options.position
|
|
);
|
|
|
|
submenu.show()
|
|
.removeAttr( "aria-hidden" )
|
|
.attr( "aria-expanded", "true" )
|
|
.position( position );
|
|
},
|
|
|
|
collapseAll: function( event, all ) {
|
|
|
|
// if we were passed an event, look for the submenu that contains the event
|
|
var currentMenu = all ? this.element :
|
|
$( event && event.target ).closest( this.element.find( ".ui-menu" ) );
|
|
|
|
// if we found no valid submenu ancestor, use the main menu to close all sub menus anyway
|
|
if ( !currentMenu.length ) {
|
|
currentMenu = this.element;
|
|
}
|
|
|
|
this._close( currentMenu );
|
|
|
|
this.blur( event );
|
|
this.activeMenu = currentMenu;
|
|
},
|
|
|
|
// With no arguments, closes the currently active menu - if nothing is active
|
|
// it closes all menus. If passed an argument, it will search for menus BELOW
|
|
_close: function( startMenu ) {
|
|
if ( !startMenu ) {
|
|
startMenu = this.active ? this.active.parent() : this.element;
|
|
}
|
|
|
|
startMenu
|
|
.find( ".ui-menu" )
|
|
.hide()
|
|
.attr( "aria-hidden", "true" )
|
|
.attr( "aria-expanded", "false" )
|
|
.end()
|
|
.find( "a.ui-state-active" )
|
|
.removeClass( "ui-state-active" );
|
|
},
|
|
|
|
collapse: function( event ) {
|
|
var newItem = this.active && this.active.parent().closest( ".ui-menu-item", this.element );
|
|
if ( newItem && newItem.length ) {
|
|
this._close();
|
|
this.focus( event, newItem );
|
|
return true;
|
|
}
|
|
},
|
|
|
|
expand: function( event ) {
|
|
var newItem = this.active && this.active.children( ".ui-menu " ).children( ".ui-menu-item" ).first();
|
|
|
|
if ( newItem && newItem.length ) {
|
|
this._open( newItem.parent() );
|
|
|
|
//timeout so Firefox will not hide activedescendant change in expanding submenu from AT
|
|
this._delay( function() {
|
|
this.focus( event, newItem );
|
|
}, 20 );
|
|
return true;
|
|
}
|
|
},
|
|
|
|
next: function(event) {
|
|
this._move( "next", "first", event );
|
|
},
|
|
|
|
previous: function(event) {
|
|
this._move( "prev", "last", event );
|
|
},
|
|
|
|
first: function() {
|
|
return this.active && !this.active.prevAll( ".ui-menu-item" ).length;
|
|
},
|
|
|
|
last: function() {
|
|
return this.active && !this.active.nextAll( ".ui-menu-item" ).length;
|
|
},
|
|
|
|
_move: function( direction, filter, event ) {
|
|
if ( !this.active ) {
|
|
this.focus( event, this.activeMenu.children( ".ui-menu-item" )[ filter ]() );
|
|
return;
|
|
}
|
|
|
|
var next;
|
|
if ( direction === "first" || direction === "last" ) {
|
|
next = this.active[ direction === "first" ? "prevAll" : "nextAll" ]( ".ui-menu-item" ).eq( -1 );
|
|
} else {
|
|
next = this.active[ direction + "All" ]( ".ui-menu-item" ).eq( 0 );
|
|
}
|
|
|
|
if ( next.length ) {
|
|
this.focus( event, next );
|
|
} else {
|
|
this.focus( event, this.activeMenu.children( ".ui-menu-item" )[ filter ]() );
|
|
}
|
|
},
|
|
|
|
nextPage: function( event ) {
|
|
if ( this._hasScroll() ) {
|
|
if ( !this.active ) {
|
|
this.focus( event, this.activeMenu.children( ".ui-menu-item" ).first() );
|
|
return;
|
|
}
|
|
if ( this.last() ) {
|
|
return;
|
|
}
|
|
|
|
var base = this.active.offset().top,
|
|
height = this.element.height(),
|
|
result;
|
|
this.active.nextAll( ".ui-menu-item" ).each( function() {
|
|
result = $( this );
|
|
return $( this ).offset().top - base - height < 0;
|
|
});
|
|
|
|
this.focus( event, result );
|
|
} else {
|
|
this.focus( event, this.activeMenu.children( ".ui-menu-item" )
|
|
[ !this.active ? "first" : "last" ]() );
|
|
}
|
|
},
|
|
|
|
previousPage: function( event ) {
|
|
if ( this._hasScroll() ) {
|
|
if ( !this.active ) {
|
|
this.focus( event, this.activeMenu.children( ".ui-menu-item" ).first() );
|
|
return;
|
|
}
|
|
if ( this.first() ) {
|
|
return;
|
|
}
|
|
|
|
var base = this.active.offset().top,
|
|
height = this.element.height(),
|
|
result;
|
|
this.active.prevAll( ".ui-menu-item" ).each( function() {
|
|
result = $( this );
|
|
return $(this).offset().top - base + height > 0;
|
|
});
|
|
|
|
this.focus( event, result );
|
|
} else {
|
|
this.focus( event, this.activeMenu.children( ".ui-menu-item" ).first() );
|
|
}
|
|
},
|
|
|
|
_hasScroll: function() {
|
|
return this.element.height() < this.element.prop( "scrollHeight" );
|
|
},
|
|
|
|
select: function( event ) {
|
|
|
|
// save active reference before collapseAll triggers blur
|
|
var ui = {
|
|
item: this.active
|
|
};
|
|
this.collapseAll( event, true );
|
|
if ( this.options.trigger ) {
|
|
$( this.options.trigger ).focus( 1 );
|
|
this.element.popup( "close" );
|
|
}
|
|
this._trigger( "select", event, ui );
|
|
}
|
|
});
|
|
|
|
}( jQuery ));
|