diff options
Diffstat (limited to 'ui')
| -rw-r--r-- | ui/jquery.ui.selectmenu.js | 518 |
1 files changed, 518 insertions, 0 deletions
diff --git a/ui/jquery.ui.selectmenu.js b/ui/jquery.ui.selectmenu.js new file mode 100644 index 000000000..90dfce824 --- /dev/null +++ b/ui/jquery.ui.selectmenu.js @@ -0,0 +1,518 @@ +/*! + * jQuery UI Selectmenu @VERSION + * http://jqueryui.com + * + * Copyright 2013 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, + icons: { + button: "ui-icon-triangle-1-s" + }, + position: { + my: "left top", + at: "left bottom", + collision: "none" + }, + widthButton: null, + widthMenu: null, + + // callbacks + change: null, + close: null, + focus: null, + open: null, + select: null + }, + + _create: function() { + var selectmenuId = this.element.uniqueId().attr( "id" ); + this.ids = { + element: selectmenuId, + button: selectmenuId + "-button", + menu: selectmenuId + "-menu" + }; + + this._drawButton(); + this._drawMenu(); + + if ( this.options.disabled ) { + this.disable(); + } + }, + + _drawButton: function() { + var tabindex = this.element.attr( "tabindex" ); + + // Associate existing label with the new button + this.label = $( "label[for='" + this.ids.element + "']" ).attr( "for", this.ids.button ); + this._on( this.label, { + click: function( event ) { + this.button.focus(); + event.preventDefault(); + } + }); + + // Hide original select element + this.element.hide(); + + // Create button + this.button = $( "<span>", { + "class": "ui-selectmenu-button ui-widget ui-state-default ui-corner-all", + tabindex: tabindex || this.options.disabled ? -1 : 0, + id: this.ids.button, + role: "combobox", + "aria-expanded": "false", + "aria-autocomplete": "list", + "aria-owns": this.ids.menu, + "aria-haspopup": "true" + }) + .insertAfter( this.element ); + + $( "<span>", { + "class": "ui-icon " + this.options.icons.button + }).prependTo( this.button ); + + this.buttonText = $( "<span>", { + "class": "ui-selectmenu-text" + }) + .appendTo( this.button ); + + this._setText( this.buttonText, this.element.find( "option:selected" ).text() ); + this._setOption( "widthButton", this.options.widthButton ); + + this._on( this.button, this._buttonEvents ); + this._hoverable( this.button ); + this._focusable( this.button ); + }, + + _drawMenu: function() { + var that = this; + + // Create menu + this.menu = $( "<ul>", { + "aria-hidden": "true", + "aria-labelledby": this.ids.button, + id: this.ids.menu + }); + + // Wrap menu + this.menuWrap = $( "<div>", { + "class": "ui-selectmenu-menu ui-front" + }) + .append( this.menu ) + .appendTo( this._appendTo() ); + + // Initialize menu widget + this.menuInstance = this.menu.menu({ + role: "listbox", + select: function( event, ui ) { + event.preventDefault(); + that._select( ui.item.data( "ui-selectmenu-item" ), 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.focusIndex != null && item.index !== that.focusIndex ) { + that._trigger( "focus", event, { item: item } ); + if ( !that.isOpen ) { + that._select( item, event ); + } + } + that.focusIndex = item.index; + + that.button.attr( "aria-activedescendant", + that.menuItems.eq( item.index ).attr( "id" ) ); + } + }) + .menu( "instance" ); + + // Adjust menu styles to dropdown + this.menu.addClass( "ui-corner-bottom" ).removeClass( "ui-corner-all" ); + + // TODO: Can we make this cleaner? + // If not, at least update the comment to say what we're removing + // Unbind uneeded menu events + this.menuInstance._off( this.menu, "mouseleave" ); + + // Cancel the menu's collapseAll on document click + this.menuInstance._closeOnDocumentClick = function() { + return false; + }; + }, + + refresh: function() { + this._refreshMenu(); + this._setText( this.buttonText, this._getSelectedItem().text() ); + }, + + _refreshMenu: function() { + this.menu.empty(); + + var item, + options = this.element.find( "option" ); + + if ( !options.length ) { + return; + } + + this._readOptions( options ); + this._renderMenu( this.menu, this.items ); + + this.menuInstance.refresh(); + this.menuItems = this.menu.find( "li" ).not( ".ui-selectmenu-optgroup" ); + + item = this._getSelectedItem(); + + // Update the menu to have the correct item focused + this.menuInstance.focus( null, item ); + this._setAria( item.data( "ui-selectmenu-item" ) ); + + // Set disabled state + this._setOption( "disabled", this.element.prop( "disabled" ) ); + }, + + open: function( event ) { + if ( this.options.disabled ) { + return; + } + + // If this is the first time the menu is being opened, render the items + if ( !this.menuItems ) { + this._refreshMenu(); + } else { + // TODO: Why is this necessary? + // Shouldn't the underlying menu always have accurate state? + this.menu.find( ".ui-state-focus" ).removeClass( "ui-state-focus" ); + this.menuInstance.focus( null, this._getSelectedItem() ); + } + + this.isOpen = true; + this._toggleAttr(); + this._resizeMenu(); + this._position(); + + this._on( this.document, this._documentClick ); + + this._trigger( "open", event ); + }, + + _position: function() { + this.menuWrap.position( $.extend( { of: this.button }, this.options.position ) ); + }, + + close: function( event ) { + if ( !this.isOpen ) { + return; + } + + this.isOpen = false; + this._toggleAttr(); + + // Check if we have an item to select + if ( this.menuItems ) { + this.menuInstance.active = this._getSelectedItem(); + } + + this._off( this.document ); + + 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 ui-menu-divider" + + ( item.element.parent( "optgroup" ).attr( "disabled" ) ? + " ui-state-disabled" : + "" ), + text: item.optgroup + }) + .appendTo( ul ); + currentOptgroup = item.optgroup; + } + that._renderItemData( ul, item ); + }); + }, + + _renderItemData: function( ul, item ) { + return this._renderItem( ul, item ).data( "ui-selectmenu-item", item ); + }, + + _renderItem: function( ul, item ) { + var li = $( "<li>" ); + + if ( item.disabled ) { + li.addClass( "ui-state-disabled" ); + } + this._setText( li, item.label ); + + return li.appendTo( ul ); + }, + + _setText: function( element, value ) { + if ( value ) { + element.text( value ); + } else { + element.html( " " ); + } + }, + + _move: function( direction, event ) { + if ( direction === "first" || direction === "last" ) { + // Set focus manually for first or last item + this.menu.menu( "focus", event, this.menuItems[ direction ]() ); + } else { + if ( direction === "previous" && this.menu.menu( "isFirstItem" ) || + direction === "next" && this.menu.menu( "isLastItem" ) ) { + return; + } + + // Move to and focus next or prev item + this.menu.menu( direction, event ); + } + }, + + _getSelectedItem: function() { + return this.menuItems.eq( this.element[ 0 ].selectedIndex ); + }, + + _toggle: function( event ) { + if ( this.isOpen ) { + this.close( event ); + } else { + this.open( event ); + } + }, + + _documentClick: { + click: function( event ) { + if ( this.isOpen && !$( event.target ).closest( "li.ui-state-disabled, li.ui-selectmenu-optgroup, #" + this.ids.button ).length ) { + this.close( event ); + } + } + }, + + _buttonEvents: { + focusin: function() { + // Delay rendering the menu items until the button receives focus + if ( !this.menuItems ) { + this._refreshMenu(); + } + this._off( this.button, "focusin" ); + }, + click: "_toggle", + keydown: function( event ) { + var preventDefault = true; + switch ( event.keyCode ) { + case $.ui.keyCode.TAB: + case $.ui.keyCode.ESCAPE: + this.close( event ); + preventDefault = false; + break; + case $.ui.keyCode.ENTER: + if ( this.isOpen ) { + this.menuInstance.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.menuInstance.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 ); + preventDefault = false; + } + + if ( preventDefault ) { + event.preventDefault(); + } + } + }, + + _select: function( item, event ) { + var oldIndex = this.element[ 0 ].selectedIndex; + + // Change native select element + this.element[ 0 ].selectedIndex = item.index; + this._setText( this.buttonText, item.label ); + this._setAria( item ); + this._trigger( "select", event, { item: item } ); + + if ( item.index !== oldIndex ) { + this._trigger( "change", event, { item: item } ); + } + + this.close( event ); + }, + + _setAria: function( item ) { + var id = this.menuItems.eq( item.index ).attr( "id" ); + + this.button.attr({ + "aria-labelledby": id, + "aria-activedescendant": id + }); + this.menu.attr( "aria-activedescendant", id ); + }, + + _setOption: function( key, value ) { + if ( key === "icons" ) { + this.button.find( "span.ui-icon" ) + .removeClass( this.options.icons.button ) + .addClass( value.button ); + } + + this._super( key, value ); + + if ( key === "appendTo" ) { + this.menuWrap.appendTo( this._appendTo() ); + } + if ( key === "disabled" ) { + this.menuInstance.option( "disabled", value ); + this.button + .toggleClass( "ui-state-disabled", value ) + .attr( "aria-disabled", value ); + + this.element.prop( "disabled", value ); + if ( value ) { + this.button.attr( "tabindex", -1 ); + this.close(); + } else { + this.button.attr( "tabindex", 0 ); + } + } + if ( key === "widthButton" ) { + if ( !value ) { + value = this.element.outerWidth(); + } + this.button.outerWidth( value ); + } + }, + + _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(){ + 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 ); + }, + + _resizeMenu: function() { + this.menu.outerWidth( this.options.widthMenu || Math.max( + this.button.outerWidth(), + this.menu.width( "" ).outerWidth() + ) ); + }, + + _getCreateOptions: function() { + return { disabled: this.element.prop( "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.button.remove(); + this.element.show(); + this.element.removeUniqueId(); + this.label.attr( "for", this.ids.element ); + } +}); + +}( jQuery )); |