mirror of
https://github.com/jquery/jquery-ui.git
synced 2024-11-21 11:04:24 +00:00
412 lines
9.8 KiB
JavaScript
412 lines
9.8 KiB
JavaScript
/*
|
|
* jQuery UI Selectmenu @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/Selectmenu
|
|
*
|
|
* Depends:
|
|
* jquery.ui.core.js
|
|
* jquery.ui.widget.js
|
|
* jquery.ui.position.js
|
|
* jquery.ui.menu.js
|
|
* jquery.ui.button.js
|
|
*/
|
|
(function( $, undefined ) {
|
|
|
|
$.widget( "ui.selectmenu", {
|
|
version: "@VERSION",
|
|
defaultElement: "<select>",
|
|
options: {
|
|
dropdown: true,
|
|
appendTo: "body",
|
|
position: {
|
|
my: "left top",
|
|
at: "left bottom",
|
|
collision: "none"
|
|
},
|
|
value: null,
|
|
// callbacks
|
|
open: null,
|
|
focus: null,
|
|
select: null,
|
|
close: null,
|
|
change: null
|
|
},
|
|
|
|
_create: function() {
|
|
// set a default id value, generate a new random one if not set by developer
|
|
var selectmenuId = this.element.attr( 'id' ) || 'ui-selectmenu-' + Math.random().toString( 16 ).slice( 2, 10 );
|
|
|
|
// array of button and menu id's
|
|
this.ids = { id: selectmenuId, button: selectmenuId + '-button', menu: selectmenuId + '-menu' };
|
|
|
|
// set current value
|
|
if ( this.options.value ) {
|
|
this.element[0].value = this.options.value;
|
|
} else {
|
|
this.options.value = this.element[0].value;
|
|
}
|
|
|
|
// catch click event of the label
|
|
this._bind({
|
|
'click': function( event ) {
|
|
this.button.focus();
|
|
event.preventDefault();
|
|
}
|
|
});
|
|
|
|
this._drawButton();
|
|
this._bind( this.button, this._buttonEvents );
|
|
|
|
this._drawMenu();
|
|
this.refresh();
|
|
},
|
|
|
|
_drawButton: function() {
|
|
var tabindex = this.element.attr( 'tabindex' );
|
|
|
|
// hide original select tag
|
|
this.element.hide();
|
|
|
|
// create button
|
|
this.button = $( '<a />', {
|
|
href: '#' + this.ids.id,
|
|
tabindex: ( tabindex ? tabindex : this.element.attr( 'disabled' ) ? -1 : 0 ),
|
|
id: this.ids.button,
|
|
css: {
|
|
width: this.element.outerWidth()
|
|
},
|
|
'aria-disabled': this.options.disabled,
|
|
'aria-owns': this.ids.menu,
|
|
'aria-haspopup': true
|
|
})
|
|
.button({
|
|
label: this.element.find( "option:selected" ).text(),
|
|
icons: {
|
|
primary: ( this.options.dropdown ? 'ui-icon-triangle-1-s' : 'ui-icon-triangle-2-n-s' )
|
|
}
|
|
});
|
|
|
|
// wrap and insert new button
|
|
this.buttonWrap = $( '<span />' )
|
|
.addClass( 'ui-selectmenu-button' )
|
|
.append( this.button )
|
|
.insertAfter( this.element );
|
|
},
|
|
|
|
_drawMenu: function() {
|
|
var that = this;
|
|
|
|
// create menu portion, append to body
|
|
this.menu = $( '<ul />', {
|
|
'class': 'ui-widget ui-widget-content',
|
|
'aria-hidden': true,
|
|
'aria-labelledby': this.ids.button,
|
|
role: 'menubox',
|
|
id: this.ids.menu
|
|
});
|
|
|
|
// set width
|
|
if ( this.options.dropdown ) {
|
|
var setWidth = this.button.outerWidth();
|
|
} else {
|
|
var text = this.button.find( "span.ui-button-text");
|
|
var setWidth = text.width() + parseFloat( text.css( "padding-left" ) ) || 0 + parseFloat( text.css( "margin-left" ) || 0 );
|
|
}
|
|
|
|
// wrap menu
|
|
this.menuWrap = $( '<div />' )
|
|
.addClass( 'ui-selectmenu-menu' )
|
|
.width( setWidth )
|
|
.append( this.menu )
|
|
.appendTo( this.options.appendTo );
|
|
|
|
// init menu widget
|
|
this.menu.menu({
|
|
select: function( event, ui ) {
|
|
var flag = false,
|
|
item = ui.item.data( "item.selectmenu" ),
|
|
oldIndex = that.element[0].selectedIndex;
|
|
|
|
that._setOption( "value", item.value );
|
|
that._trigger( "select", event, { item: item } );
|
|
|
|
if ( item.index != oldIndex ) {
|
|
that._trigger( "change", event, { item: item } );
|
|
}
|
|
|
|
if ( that.isOpen ) {
|
|
event.preventDefault();
|
|
that.close( event, true);
|
|
}
|
|
},
|
|
focus: function( event, ui ) {
|
|
var item = ui.item.data( "item.selectmenu" );
|
|
|
|
if ( that.focus !== undefined && item.index != that.focus ) {
|
|
that._trigger( "focus", event, { item: item } );
|
|
}
|
|
|
|
that.focus = item.index;
|
|
}
|
|
});
|
|
|
|
// document click closes menu
|
|
this._bind( document, {
|
|
'click': function( event ) {
|
|
if ( this.isOpen && !$( event.target ).closest( "#" + this.ids.button).length ) {
|
|
this.close( event );
|
|
}
|
|
}
|
|
});
|
|
},
|
|
|
|
refresh: function() {
|
|
this.menu.empty();
|
|
|
|
this._readOptions();
|
|
this._renderMenu( this.menu, this.items );
|
|
|
|
this.menu.menu( "refresh" );
|
|
|
|
// adjust ARIA
|
|
this.menu.find( "li" ).not( '.ui-selectmenu-optgroup' ).find( 'a' ).attr( 'role', 'option' );
|
|
|
|
if ( this.options.dropdown ) {
|
|
this.menu
|
|
.addClass( 'ui-corner-bottom' )
|
|
.removeClass( 'ui-corner-all' );
|
|
}
|
|
|
|
// transfer disabled state
|
|
if ( this.element.attr( 'disabled' ) ) {
|
|
this.disable();
|
|
} else {
|
|
this.enable()
|
|
}
|
|
},
|
|
|
|
open: function( event ) {
|
|
var currentItem = this._getSelectedItem();
|
|
|
|
if ( !this.options.disabled ) {
|
|
if ( this.options.dropdown ) {
|
|
this.button
|
|
.addClass( 'ui-corner-top' )
|
|
.removeClass( 'ui-corner-all' );
|
|
}
|
|
|
|
this.menuWrap.addClass( 'ui-selectmenu-open' );
|
|
// needs to be fired after the document click event has closed all other Selectmenus
|
|
// otherwise the current item is not indicated
|
|
// TODO check if this should be handled by Menu
|
|
this._delay( function(){
|
|
this.menu.menu( "focus", event, currentItem );
|
|
}, 1);
|
|
|
|
if ( !this.options.dropdown ) {
|
|
// center current item
|
|
if ( this.menu.css("overflow") == "auto" ) {
|
|
this.menu.scrollTop( this.menu.scrollTop() + currentItem.position().top - this.menu.outerHeight()/2 + currentItem.outerHeight()/2 );
|
|
}
|
|
// calculate offset
|
|
var _offset = ( this.menu.offset().top - currentItem.offset().top + ( this.button.outerHeight() - currentItem.outerHeight() ) / 2);
|
|
$.extend( this.options.position, {
|
|
my: "left top",
|
|
at: "left top",
|
|
offset: "0 " + _offset
|
|
});
|
|
}
|
|
|
|
this.menuWrap
|
|
.zIndex( this.element.zIndex() + 1 )
|
|
.position( $.extend({
|
|
of: this.button
|
|
}, this.options.position ));
|
|
|
|
this.isOpen = true;
|
|
this._trigger( "open", event );
|
|
}
|
|
},
|
|
|
|
close: function( event, focus ) {
|
|
if ( this.isOpen ) {
|
|
if ( this.options.dropdown ) {
|
|
this.button
|
|
.addClass( 'ui-corner-all' )
|
|
.removeClass( 'ui-corner-top' );
|
|
}
|
|
|
|
this.menuWrap.removeClass( 'ui-selectmenu-open' );
|
|
this.isOpen = false;
|
|
|
|
if ( focus ) {
|
|
this.button.focus();
|
|
}
|
|
|
|
this._trigger( "close", event );
|
|
}
|
|
},
|
|
|
|
widget: function() {
|
|
return this.buttonWrap.add( this.menuWrap );
|
|
},
|
|
|
|
_renderMenu: function( ul, items ) {
|
|
var that = this,
|
|
currentOptgroup = "";
|
|
|
|
$.each( items, function( index, item ) {
|
|
if ( item.optgroup != currentOptgroup ) {
|
|
var optgroup = $( '<li class="ui-selectmenu-optgroup">' + item.optgroup + '</li>' );
|
|
if ( item.element.parent( "optgroup" ).attr( "disabled" ) ) optgroup.addClass( 'ui-state-disabled' );
|
|
ul.append( optgroup );
|
|
currentOptgroup = item.optgroup;
|
|
}
|
|
that._renderItem( ul, item );
|
|
});
|
|
},
|
|
|
|
_renderItem: function( ul, item) {
|
|
var li = $( "<li />" ).data( "item.selectmenu", item );
|
|
if ( item.disabled ) {
|
|
li.addClass( 'ui-state-disabled' ).text( item.label );
|
|
} else {
|
|
li.append( $( "<a />", {
|
|
text: item.label,
|
|
href: '#'
|
|
})
|
|
);
|
|
}
|
|
|
|
return li.appendTo( ul );
|
|
},
|
|
|
|
_move: function( key, event ) {
|
|
if ( !this.isOpen ) {
|
|
this.menu.menu( "focus", event, this._getSelectedItem() );
|
|
}
|
|
|
|
this.menu.menu( key, event );
|
|
|
|
if ( !this.isOpen ) {
|
|
this.menu.menu( "select", event );
|
|
}
|
|
},
|
|
|
|
_getSelectedItem: function() {
|
|
return this.menu.find( "li" ).not( '.ui-selectmenu-optgroup' ).eq( this.element[0].selectedIndex );
|
|
},
|
|
|
|
_toggle: function( event ) {
|
|
if ( this.isOpen ) {
|
|
this.close( event );
|
|
} else {
|
|
this.open( event );
|
|
}
|
|
},
|
|
|
|
_buttonEvents: {
|
|
click: function( event ) {
|
|
this._toggle( event );
|
|
event.preventDefault();
|
|
},
|
|
keydown: function( event ) {
|
|
switch (event.keyCode) {
|
|
case $.ui.keyCode.TAB:
|
|
if ( this.isOpen ) {
|
|
this.close( event );
|
|
}
|
|
break;
|
|
case $.ui.keyCode.ENTER:
|
|
if ( this.isOpen ) {
|
|
this.menu.menu( "select", this._getSelectedItem() );
|
|
}
|
|
event.preventDefault();
|
|
break;
|
|
case $.ui.keyCode.SPACE:
|
|
event.preventDefault();
|
|
break;
|
|
case $.ui.keyCode.UP:
|
|
if ( event.altKey ) {
|
|
this._toggle( event );
|
|
} else {
|
|
this._move( "previous", event );
|
|
}
|
|
event.preventDefault();
|
|
break;
|
|
case $.ui.keyCode.DOWN:
|
|
if ( event.altKey ) {
|
|
this._toggle( event );
|
|
} else {
|
|
this._move( "next", event );
|
|
}
|
|
event.preventDefault();
|
|
break;
|
|
case $.ui.keyCode.LEFT:
|
|
this._move( "previous", event );
|
|
event.preventDefault();
|
|
break;
|
|
case $.ui.keyCode.RIGHT:
|
|
this._move( "next", event );
|
|
event.preventDefault();
|
|
break;
|
|
default:
|
|
this.menu.trigger( event );
|
|
}
|
|
}
|
|
},
|
|
|
|
_setOption: function( key, value ) {
|
|
this._super( key, value );
|
|
|
|
if ( key === "appendTo" ) {
|
|
this.menuWrap.appendTo( $( value || "body", this.element[0].ownerDocument )[0] );
|
|
}
|
|
if ( key === "value" && value !== undefined ) {
|
|
this.element[0].value = value;
|
|
this.button.children( '.ui-button-text' ).text( this.items[ this.element[0].selectedIndex ].label );
|
|
}
|
|
if ( key === "disabled" ) {
|
|
this.button.button( "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 );
|
|
}
|
|
this.menu.attr( "aria-disabled", value );
|
|
}
|
|
},
|
|
|
|
_readOptions: function() {
|
|
var data = [];
|
|
$.each( this.element.find( 'option' ), 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" ) || false,
|
|
disabled: optgroup.attr( "disabled" ) || option.attr( "disabled" )
|
|
});
|
|
});
|
|
this.items = data;
|
|
},
|
|
|
|
_destroy: function() {
|
|
this.menuWrap.remove();
|
|
this.buttonWrap.remove();
|
|
this.element.show();
|
|
}
|
|
});
|
|
|
|
}( jQuery ));
|