mirror of
https://github.com/jquery/jquery-ui.git
synced 2024-10-05 01:44:18 +00:00
483 lines
12 KiB
JavaScript
483 lines
12 KiB
JavaScript
/*!
|
|
* jQuery UI Selectmenu @VERSION
|
|
* http://jqueryui.com
|
|
*
|
|
* Copyright 2012 jQuery Foundation and other contributors
|
|
* Released under the MIT license.
|
|
* http://jquery.org/license
|
|
*
|
|
* http://api.jqueryui.com/selectmenu
|
|
*
|
|
* Depends:
|
|
* jquery.ui.core.js
|
|
* jquery.ui.widget.js
|
|
* jquery.ui.position.js
|
|
* jquery.ui.menu.js
|
|
*/
|
|
(function( $, undefined ) {
|
|
|
|
$.widget( "ui.selectmenu", {
|
|
version: "@VERSION",
|
|
defaultElement: "<select>",
|
|
options: {
|
|
appendTo: null,
|
|
dropdown: true,
|
|
position: {
|
|
my: "left top",
|
|
at: "left bottom",
|
|
collision: "none"
|
|
},
|
|
|
|
// callbacks
|
|
change: null,
|
|
close: null,
|
|
focus: null,
|
|
open: null,
|
|
select: null
|
|
},
|
|
|
|
_create: function() {
|
|
var selectmenuId = this.element.uniqueId().attr( "id" );
|
|
this.ids = { id: selectmenuId, button: selectmenuId + "-button", menu: selectmenuId + "-menu" };
|
|
|
|
this._drawButton();
|
|
this._drawMenu();
|
|
|
|
this._on( document, this._documentClick );
|
|
|
|
if ( this.options.disabled ) {
|
|
this.disable();
|
|
}
|
|
},
|
|
|
|
_drawButton: function() {
|
|
var tabindex = this.element.attr( "tabindex" );
|
|
|
|
// fix existing label
|
|
this.label = $( "label[for='" + this.ids.id + "']" ).attr( "for", this.ids.button );
|
|
this._on( this.label, {
|
|
"click": function( event ) {
|
|
this.button.focus();
|
|
event.preventDefault();
|
|
}
|
|
});
|
|
|
|
// hide original select tag
|
|
this.element.hide();
|
|
|
|
// create button
|
|
this.button = $( "<a>", {
|
|
"class": "ui-button ui-widget ui-state-default ui-corner-all",
|
|
href: "#" + this.ids.id,
|
|
tabindex: ( tabindex ? tabindex : this.options.disabled ? -1 : 0 ),
|
|
id: this.ids.button,
|
|
width: this.element.outerWidth(),
|
|
role: "combobox",
|
|
"aria-expanded": false,
|
|
"aria-autocomplete": "list",
|
|
"aria-owns": this.ids.menu,
|
|
"aria-haspopup": true
|
|
});
|
|
|
|
this.button.prepend( $( "<span>", {
|
|
"class": "ui-icon " + ( ( this.options.dropdown ) ? "ui-icon-triangle-1-s" : "ui-icon-triangle-2-n-s" )
|
|
}));
|
|
|
|
this.buttonText = $( "<span>", {
|
|
"class": "ui-selectmenu-text"
|
|
})
|
|
.appendTo( this.button );
|
|
this._setText( this.buttonText, this.element.find( "option:selected" ).text() );
|
|
|
|
// wrap and insert new button
|
|
this.buttonWrap = $( "<span>", {
|
|
"class": "ui-selectmenu-button"
|
|
})
|
|
.append( this.button )
|
|
.insertAfter( this.element );
|
|
|
|
this._on( this.button, this._buttonEvents );
|
|
this._hoverable( this.button );
|
|
this._focusable( this.button );
|
|
},
|
|
|
|
_drawMenu: function() {
|
|
var menuInstance,
|
|
that = this;
|
|
|
|
// create menu portion, append to body
|
|
this.menu = $( "<ul>", {
|
|
"aria-hidden": true,
|
|
"aria-labelledby": this.ids.button,
|
|
id: this.ids.menu
|
|
});
|
|
|
|
// wrap menu
|
|
this.menuWrap = $( "<div>", {
|
|
"class": "ui-selectmenu-menu",
|
|
width: ( this.options.dropdown ) ? this.button.outerWidth() : this.buttonText.width() + parseFloat( this.buttonText.css( "padding-left" ) ) || 0 + parseFloat( this.buttonText.css( "margin-left") ) || 0
|
|
})
|
|
.append( this.menu )
|
|
.appendTo( this._appendTo() );
|
|
|
|
// init menu widget
|
|
menuInstance = this.menu.menu({
|
|
select: function( event, ui ) {
|
|
var item = ui.item.data( "ui-selectmenu-item" );
|
|
|
|
that._select( item, event );
|
|
|
|
if ( that.isOpen ) {
|
|
event.preventDefault();
|
|
that.close( event );
|
|
}
|
|
},
|
|
focus: function( event, ui ) {
|
|
var item = ui.item.data( "ui-selectmenu-item" );
|
|
// prevent inital focus from firing and checks if its a newly focused item
|
|
if ( that.focus !== undefined && item.index !== that.focus ) {
|
|
that._trigger( "focus", event, { item: item } );
|
|
if ( !that.isOpen ) {
|
|
that._select( item, event );
|
|
}
|
|
}
|
|
that.focus = item.index;
|
|
|
|
// Set ARIA active descendant
|
|
that.button.attr( "aria-activedescendant", that.menuItems.eq( item.index ).find( "a" ).attr( "id" ) );
|
|
},
|
|
// set ARIA role
|
|
role: "listbox"
|
|
})
|
|
.data( "ui-menu" );
|
|
|
|
// dropdown style needs border on bottom only
|
|
if ( this.options.dropdown ) {
|
|
this.menu.addClass( "ui-corner-bottom" ).removeClass( "ui-corner-all" );
|
|
}
|
|
|
|
// make sure focus stays on selected item
|
|
menuInstance.delay = 999999999;
|
|
// unbind uneeded Menu events
|
|
menuInstance._off( this.menu, "mouseleave" );
|
|
},
|
|
|
|
refresh: function() {
|
|
this.menu.empty();
|
|
|
|
var item,
|
|
options = this.element.find( "option" );
|
|
if ( options.length ) {
|
|
this._readOptions( options );
|
|
this._renderMenu( this.menu, this.items );
|
|
|
|
this.menu.menu( "refresh" );
|
|
this.menuItems = this.menu.find( "li" ).not( ".ui-selectmenu-optgroup" );
|
|
|
|
// select current item
|
|
item = this._getSelectedItem();
|
|
// make sure menu is selected item aware
|
|
this.menu.menu( "focus", null, item );
|
|
this._setSelected( item.data( "ui-selectmenu-item" ) );
|
|
|
|
// set disabled state
|
|
this._setOption( "disabled", this._getCreateOptions().disabled );
|
|
}
|
|
},
|
|
|
|
open: function( event ) {
|
|
if ( this.options.disabled ) {
|
|
return;
|
|
}
|
|
|
|
var _position = {
|
|
of: this.button
|
|
};
|
|
|
|
this.isOpen = true;
|
|
this._toggleAttr();
|
|
|
|
// do not change position if non default position options are set (needed for custom positioned popup menus)
|
|
if ( this.items && !this.options.dropdown && this.options.position.my == "left top" && this.options.position.at == "left bottom" ) {
|
|
var currentItem = this._getSelectedItem();
|
|
// center current item
|
|
if ( this.menu.outerHeight() < this.menu.prop( "scrollHeight" ) ) {
|
|
this.menuWrap.css( "left" , -10000 );
|
|
this.menu.scrollTop( this.menu.scrollTop() + currentItem.position().top - this.menu.outerHeight() / 2 + currentItem.outerHeight() / 2 );
|
|
this.menuWrap.css( "left" , "auto" );
|
|
}
|
|
_position.my = "left top" + ( this.menu.offset().top - currentItem.offset().top + ( this.button.outerHeight() - currentItem.outerHeight() ) / 2 );
|
|
_position.at = "left top";
|
|
}
|
|
|
|
this.menuWrap
|
|
.zIndex( this.element.zIndex() + 1 )
|
|
.position( $.extend( {}, this.options.position, _position ) );
|
|
|
|
this._trigger( "open", event );
|
|
},
|
|
|
|
close: function( event ) {
|
|
if ( !this.isOpen ) {
|
|
return;
|
|
}
|
|
|
|
this.isOpen = false;
|
|
this._toggleAttr();
|
|
|
|
// check if we have an item to select
|
|
if ( this.menuItems ) {
|
|
var id = this._getSelectedItem().find( "a" ).attr( "id" );
|
|
this.button.attr( "aria-activedescendant", id );
|
|
this.menu.attr( "aria-activedescendant", id );
|
|
}
|
|
|
|
this._trigger( "close", event );
|
|
},
|
|
|
|
widget: function() {
|
|
return this.button;
|
|
},
|
|
|
|
menuWidget: function() {
|
|
return this.menu;
|
|
},
|
|
|
|
_renderMenu: function( ul, items ) {
|
|
var that = this,
|
|
currentOptgroup = "";
|
|
|
|
$.each( items, function( index, item ) {
|
|
if ( item.optgroup !== currentOptgroup ) {
|
|
$( "<li />", {
|
|
"class": "ui-selectmenu-optgroup" + ( item.element.parent( "optgroup" ).attr( "disabled" ) ? " ui-state-disabled" : "" ),
|
|
text: item.optgroup
|
|
}).appendTo( ul );
|
|
currentOptgroup = item.optgroup;
|
|
}
|
|
that._renderItem( ul, item );
|
|
});
|
|
},
|
|
|
|
_renderItem: function( ul, item ) {
|
|
var li = $( "<li />" ).data( "ui-selectmenu-item", item ),
|
|
a = $( "<a />", { href: "#" });
|
|
|
|
if ( item.disabled ) {
|
|
li.addClass( "ui-state-disabled" );
|
|
}
|
|
this._setText( a, item.label );
|
|
|
|
return li.append( a ).appendTo( ul );
|
|
},
|
|
|
|
_setText: function( element, value ) {
|
|
if ( value ) {
|
|
element.text( value );
|
|
} else {
|
|
element.html( " " );
|
|
}
|
|
},
|
|
|
|
_move: function( direction, event ) {
|
|
if ( direction === "first" || direction === "last" ) {
|
|
// set focus manually for first or last item
|
|
this.menu.menu( "focus", event, this.menuItems[ direction ]() );
|
|
} else {
|
|
// move to and focus next or prev item
|
|
this.menu.menu( direction, event );
|
|
}
|
|
},
|
|
|
|
_getSelectedItem: function() {
|
|
return this.menuItems.eq( this.element[ 0 ].selectedIndex );
|
|
},
|
|
|
|
_toggle: function( event ) {
|
|
if ( this.isOpen ) {
|
|
this.close( event );
|
|
} else {
|
|
this.open( event );
|
|
}
|
|
},
|
|
|
|
_documentClick: {
|
|
click: function( event ) {
|
|
if ( this.isOpen && !$( event.target ).closest( "li.ui-state-disabled, li.ui-selectmenu-optgroup, #" + this.ids.button ).length ) {
|
|
this.close( event );
|
|
}
|
|
}
|
|
},
|
|
|
|
_buttonEvents: {
|
|
focus: function() {
|
|
// init Menu on first focus
|
|
this.refresh();
|
|
// reset focus class as its removed by ui.widget._setOption
|
|
this.button.addClass( "ui-state-focus" );
|
|
this._off( this.button, "focus" );
|
|
},
|
|
click: function( event ) {
|
|
this._toggle( event );
|
|
event.preventDefault();
|
|
},
|
|
keydown: function( event ) {
|
|
var prevDef = true;
|
|
switch ( event.keyCode ) {
|
|
case $.ui.keyCode.TAB:
|
|
case $.ui.keyCode.ESCAPE:
|
|
if ( this.isOpen ) {
|
|
this.close( event );
|
|
}
|
|
prevDef = false;
|
|
break;
|
|
case $.ui.keyCode.ENTER:
|
|
if ( this.isOpen ) {
|
|
this.menu.menu( "select", event );
|
|
}
|
|
break;
|
|
case $.ui.keyCode.UP:
|
|
if ( event.altKey ) {
|
|
this._toggle( event );
|
|
} else {
|
|
this._move( "previous", event );
|
|
}
|
|
break;
|
|
case $.ui.keyCode.DOWN:
|
|
if ( event.altKey ) {
|
|
this._toggle( event );
|
|
} else {
|
|
this._move( "next", event );
|
|
}
|
|
break;
|
|
case $.ui.keyCode.SPACE:
|
|
if ( this.isOpen ) {
|
|
this.menu.menu( "select", event );
|
|
} else {
|
|
this._toggle( event );
|
|
}
|
|
break;
|
|
case $.ui.keyCode.LEFT:
|
|
this._move( "previous", event );
|
|
break;
|
|
case $.ui.keyCode.RIGHT:
|
|
this._move( "next", event );
|
|
break;
|
|
case $.ui.keyCode.HOME:
|
|
case $.ui.keyCode.PAGE_UP:
|
|
this._move( "first", event );
|
|
break;
|
|
case $.ui.keyCode.END:
|
|
case $.ui.keyCode.PAGE_DOWN:
|
|
this._move( "last", event );
|
|
break;
|
|
default:
|
|
this.menu.trigger( event );
|
|
prevDef = false;
|
|
}
|
|
if ( prevDef ) {
|
|
event.preventDefault();
|
|
}
|
|
}
|
|
},
|
|
|
|
_select: function( item, event ) {
|
|
var oldIndex = this.element[ 0 ].selectedIndex;
|
|
// change native select element
|
|
this.element[ 0 ].selectedIndex = item.index;
|
|
this._setSelected( item );
|
|
this._trigger( "select", event, { item: item } );
|
|
|
|
if ( item.index !== oldIndex ) {
|
|
this._trigger( "change", event, { item: item } );
|
|
}
|
|
},
|
|
|
|
_setSelected: function( item ) {
|
|
this._setText( this.buttonText, item.label );
|
|
// change ARIA attr
|
|
this.menuItems.find( "a" ).attr( "aria-selected", false );
|
|
this.menuItems.eq( item.index ).find( "a" ).attr( "aria-selected", true );
|
|
this.button.attr( "aria-labelledby", this.menuItems.eq( item.index ).find( "a" ).attr( "id" ) );
|
|
},
|
|
|
|
_setOption: function( key, value ) {
|
|
this._super( key, value );
|
|
|
|
if ( key === "appendTo" ) {
|
|
this.menuWrap.appendTo( this._appendTo() );
|
|
}
|
|
if ( key === "disabled" ) {
|
|
this.menu.menu( "option", "disabled", value );
|
|
if ( value ) {
|
|
this.element.attr( "disabled", "disabled" );
|
|
this.button.attr( "tabindex", -1 );
|
|
this.close();
|
|
} else {
|
|
this.element.removeAttr( "disabled" );
|
|
this.button.attr( "tabindex", 0 );
|
|
}
|
|
}
|
|
},
|
|
|
|
_appendTo: function() {
|
|
var element = this.options.appendTo;
|
|
|
|
if ( element ) {
|
|
element = element.jquery || element.nodeType ?
|
|
$( element ) :
|
|
this.document.find( element ).eq( 0 );
|
|
}
|
|
|
|
if ( !element ) {
|
|
element = this.element.closest( ".ui-front" );
|
|
}
|
|
|
|
if ( !element.length ) {
|
|
element = this.document[0].body;
|
|
}
|
|
|
|
return element;
|
|
},
|
|
|
|
_toggleAttr: function(){
|
|
if ( this.options.dropdown ) {
|
|
this.button.toggleClass( "ui-corner-top", this.isOpen ).toggleClass( "ui-corner-all", !this.isOpen );
|
|
}
|
|
this.menuWrap.toggleClass( "ui-selectmenu-open", this.isOpen );
|
|
this.menu.attr( "aria-hidden", !this.isOpen);
|
|
this.button.attr( "aria-expanded", this.isOpen);
|
|
},
|
|
|
|
_getCreateOptions: function() {
|
|
return { disabled: !!this.element.attr( "disabled" ) };
|
|
},
|
|
|
|
_readOptions: function( options ) {
|
|
var data = [];
|
|
options.each( function( index, item ) {
|
|
var option = $( item ),
|
|
optgroup = option.parent( "optgroup" );
|
|
data.push({
|
|
element: option,
|
|
index: index,
|
|
value: option.attr( "value" ),
|
|
label: option.text(),
|
|
optgroup: optgroup.attr( "label" ) || "",
|
|
disabled: optgroup.attr( "disabled" ) || option.attr( "disabled" )
|
|
});
|
|
});
|
|
this.items = data;
|
|
},
|
|
|
|
_destroy: function() {
|
|
this.menuWrap.remove();
|
|
this.buttonWrap.remove();
|
|
this.element.show();
|
|
this.element.removeUniqueId();
|
|
this.label.attr( "for", this.ids.id );
|
|
}
|
|
});
|
|
|
|
}( jQuery ));
|