corrade-http-templates – Rev 42

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/*!
 * jQuery UI Selectmenu 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Selectmenu
//>>group: Widgets
// jscs:disable maximumLineLength
//>>description: Duplicates and extends the functionality of a native HTML select element, allowing it to be customizable in behavior and appearance far beyond the limitations of a native select.
// jscs:enable maximumLineLength
//>>docs: http://api.jqueryui.com/selectmenu/
//>>demos: http://jqueryui.com/selectmenu/
//>>css.structure: ../../themes/base/core.css
//>>css.structure: ../../themes/base/selectmenu.css, ../../themes/base/button.css
//>>css.theme: ../../themes/base/theme.css

( function( factory ) {
        if ( typeof define === "function" && define.amd ) {

                // AMD. Register as an anonymous module.
                define( [
                        "jquery",
                        "./menu",
                        "../escape-selector",
                        "../form-reset-mixin",
                        "../keycode",
                        "../labels",
                        "../position",
                        "../unique-id",
                        "../version",
                        "../widget"
                ], factory );
        } else {

                // Browser globals
                factory( jQuery );
        }
}( function( $ ) {

return $.widget( "ui.selectmenu", [ $.ui.formResetMixin, {
        version: "1.12.1",
        defaultElement: "<select>",
        options: {
                appendTo: null,
                classes: {
                        "ui-selectmenu-button-open": "ui-corner-top",
                        "ui-selectmenu-button-closed": "ui-corner-all"
                },
                disabled: null,
                icons: {
                        button: "ui-icon-triangle-1-s"
                },
                position: {
                        my: "left top",
                        at: "left bottom",
                        collision: "none"
                },
                width: false,

                // 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();
                this._bindFormResetHandler();

                this._rendered = false;
                this.menuItems = $();
        },

        _drawButton: function() {
                var icon,
                        that = this,
                        item = this._parseOption(
                                this.element.find( "option:selected" ),
                                this.element[ 0 ].selectedIndex
                        );

                // Associate existing label with the new button
                this.labels = this.element.labels().attr( "for", this.ids.button );
                this._on( this.labels, {
                        click: function( event ) {
                                this.button.focus();
                                event.preventDefault();
                        }
                } );

                // Hide original select element
                this.element.hide();

                // Create button
                this.button = $( "<span>", {
                        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",
                        title: this.element.attr( "title" )
                } )
                        .insertAfter( this.element );

                this._addClass( this.button, "ui-selectmenu-button ui-selectmenu-button-closed",
                        "ui-button ui-widget" );

                icon = $( "<span>" ).appendTo( this.button );
                this._addClass( icon, "ui-selectmenu-icon", "ui-icon " + this.options.icons.button );
                this.buttonItem = this._renderButtonItem( item )
                        .appendTo( this.button );

                if ( this.options.width !== false ) {
                        this._resizeButton();
                }

                this._on( this.button, this._buttonEvents );
                this.button.one( "focusin", function() {

                        // Delay rendering the menu items until the button receives focus.
                        // The menu may have already been rendered via a programmatic open.
                        if ( !that._rendered ) {
                                that._refreshMenu();
                        }
                } );
        },

        _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>" ).append( this.menu );
                this._addClass( this.menuWrap, "ui-selectmenu-menu", "ui-front" );
                this.menuWrap.appendTo( this._appendTo() );

                // Initialize menu widget
                this.menuInstance = this.menu
                        .menu( {
                                classes: {
                                        "ui-menu": "ui-corner-bottom"
                                },
                                role: "listbox",
                                select: function( event, ui ) {
                                        event.preventDefault();

                                        // Support: IE8
                                        // If the item was selected via a click, the text selection
                                        // will be destroyed in IE
                                        that._setSelection();

                                        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 check 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" );

                // Don't close the menu on mouseleave
                this.menuInstance._off( this.menu, "mouseleave" );

                // Cancel the menu's collapseAll on document click
                this.menuInstance._closeOnDocumentClick = function() {
                        return false;
                };

                // Selects often contain empty items, but never contain dividers
                this.menuInstance._isDivider = function() {
                        return false;
                };
        },

        refresh: function() {
                this._refreshMenu();
                this.buttonItem.replaceWith(
                        this.buttonItem = this._renderButtonItem(

                                // Fall back to an empty object in case there are no options
                                this._getSelectedItem().data( "ui-selectmenu-item" ) || {}
                        )
                );
                if ( this.options.width === null ) {
                        this._resizeButton();
                }
        },

        _refreshMenu: function() {
                var item,
                        options = this.element.find( "option" );

                this.menu.empty();

                this._parseOptions( options );
                this._renderMenu( this.menu, this.items );

                this.menuInstance.refresh();
                this.menuItems = this.menu.find( "li" )
                        .not( ".ui-selectmenu-optgroup" )
                                .find( ".ui-menu-item-wrapper" );

                this._rendered = true;

                if ( !options.length ) {
                        return;
                }

                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._rendered ) {
                        this._refreshMenu();
                } else {

                        // Menu clears focus on close, reset focus to selected item
                        this._removeClass( this.menu.find( ".ui-state-active" ), null, "ui-state-active" );
                        this.menuInstance.focus( null, this._getSelectedItem() );
                }

                // If there are no options, don't open the menu
                if ( !this.menuItems.length ) {
                        return;
                }

                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();

                this.range = null;
                this._off( this.document );

                this._trigger( "close", event );
        },

        widget: function() {
                return this.button;
        },

        menuWidget: function() {
                return this.menu;
        },

        _renderButtonItem: function( item ) {
                var buttonItem = $( "<span>" );

                this._setText( buttonItem, item.label );
                this._addClass( buttonItem, "ui-selectmenu-text" );

                return buttonItem;
        },

        _renderMenu: function( ul, items ) {
                var that = this,
                        currentOptgroup = "";

                $.each( items, function( index, item ) {
                        var li;

                        if ( item.optgroup !== currentOptgroup ) {
                                li = $( "<li>", {
                                        text: item.optgroup
                                } );
                                that._addClass( li, "ui-selectmenu-optgroup", "ui-menu-divider" +
                                        ( item.element.parent( "optgroup" ).prop( "disabled" ) ?
                                                " ui-state-disabled" :
                                                "" ) );

                                li.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>" ),
                        wrapper = $( "<div>", {
                                title: item.element.attr( "title" )
                        } );

                if ( item.disabled ) {
                        this._addClass( li, null, "ui-state-disabled" );
                }
                this._setText( wrapper, item.label );

                return li.append( wrapper ).appendTo( ul );
        },

        _setText: function( element, value ) {
                if ( value ) {
                        element.text( value );
                } else {
                        element.html( "&#160;" );
                }
        },

        _move: function( direction, event ) {
                var item, next,
                        filter = ".ui-menu-item";

                if ( this.isOpen ) {
                        item = this.menuItems.eq( this.focusIndex ).parent( "li" );
                } else {
                        item = this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" );
                        filter += ":not(.ui-state-disabled)";
                }

                if ( direction === "first" || direction === "last" ) {
                        next = item[ direction === "first" ? "prevAll" : "nextAll" ]( filter ).eq( -1 );
                } else {
                        next = item[ direction + "All" ]( filter ).eq( 0 );
                }

                if ( next.length ) {
                        this.menuInstance.focus( event, next );
                }
        },

        _getSelectedItem: function() {
                return this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" );
        },

        _toggle: function( event ) {
                this[ this.isOpen ? "close" : "open" ]( event );
        },

        _setSelection: function() {
                var selection;

                if ( !this.range ) {
                        return;
                }

                if ( window.getSelection ) {
                        selection = window.getSelection();
                        selection.removeAllRanges();
                        selection.addRange( this.range );

                // Support: IE8
                } else {
                        this.range.select();
                }

                // Support: IE
                // Setting the text selection kills the button focus in IE, but
                // restoring the focus doesn't kill the selection.
                this.button.focus();
        },

        _documentClick: {
                mousedown: function( event ) {
                        if ( !this.isOpen ) {
                                return;
                        }

                        if ( !$( event.target ).closest( ".ui-selectmenu-menu, #" +
                                        $.ui.escapeSelector( this.ids.button ) ).length ) {
                                this.close( event );
                        }
                }
        },

        _buttonEvents: {

                // Prevent text selection from being reset when interacting with the selectmenu (#10144)
                mousedown: function() {
                        var selection;

                        if ( window.getSelection ) {
                                selection = window.getSelection();
                                if ( selection.rangeCount ) {
                                        this.range = selection.getRangeAt( 0 );
                                }

                        // Support: IE8
                        } else {
                                this.range = document.selection.createRange();
                        }
                },

                click: function( event ) {
                        this._setSelection();
                        this._toggle( event );
                },

                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._selectFocusedItem( event );
                                }
                                break;
                        case $.ui.keyCode.UP:
                                if ( event.altKey ) {
                                        this._toggle( event );
                                } else {
                                        this._move( "prev", 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._selectFocusedItem( event );
                                } else {
                                        this._toggle( event );
                                }
                                break;
                        case $.ui.keyCode.LEFT:
                                this._move( "prev", 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();
                        }
                }
        },

        _selectFocusedItem: function( event ) {
                var item = this.menuItems.eq( this.focusIndex ).parent( "li" );
                if ( !item.hasClass( "ui-state-disabled" ) ) {
                        this._select( item.data( "ui-selectmenu-item" ), event );
                }
        },

        _select: function( item, event ) {
                var oldIndex = this.element[ 0 ].selectedIndex;

                // Change native select element
                this.element[ 0 ].selectedIndex = item.index;
                this.buttonItem.replaceWith( this.buttonItem = this._renderButtonItem( item ) );
                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" ) {
                        var icon = this.button.find( "span.ui-icon" );
                        this._removeClass( icon, null, this.options.icons.button )
                                ._addClass( icon, null, value.button );
                }

                this._super( key, value );

                if ( key === "appendTo" ) {
                        this.menuWrap.appendTo( this._appendTo() );
                }

                if ( key === "width" ) {
                        this._resizeButton();
                }
        },

        _setOptionDisabled: function( value ) {
                this._super( value );

                this.menuInstance.option( "disabled", value );
                this.button.attr( "aria-disabled", value );
                this._toggleClass( this.button, null, "ui-state-disabled", value );

                this.element.prop( "disabled", value );
                if ( value ) {
                        this.button.attr( "tabindex", -1 );
                        this.close();
                } else {
                        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[ 0 ] ) {
                        element = this.element.closest( ".ui-front, dialog" );
                }

                if ( !element.length ) {
                        element = this.document[ 0 ].body;
                }

                return element;
        },

        _toggleAttr: function() {
                this.button.attr( "aria-expanded", this.isOpen );

                // We can't use two _toggleClass() calls here, because we need to make sure
                // we always remove classes first and add them second, otherwise if both classes have the
                // same theme class, it will be removed after we add it.
                this._removeClass( this.button, "ui-selectmenu-button-" +
                        ( this.isOpen ? "closed" : "open" ) )
                        ._addClass( this.button, "ui-selectmenu-button-" +
                                ( this.isOpen ? "open" : "closed" ) )
                        ._toggleClass( this.menuWrap, "ui-selectmenu-open", null, this.isOpen );

                this.menu.attr( "aria-hidden", !this.isOpen );
        },

        _resizeButton: function() {
                var width = this.options.width;

                // For `width: false`, just remove inline style and stop
                if ( width === false ) {
                        this.button.css( "width", "" );
                        return;
                }

                // For `width: null`, match the width of the original element
                if ( width === null ) {
                        width = this.element.show().outerWidth();
                        this.element.hide();
                }

                this.button.outerWidth( width );
        },

        _resizeMenu: function() {
                this.menu.outerWidth( Math.max(
                        this.button.outerWidth(),

                        // Support: IE10
                        // IE10 wraps long text (possibly a rounding bug)
                        // so we add 1px to avoid the wrapping
                        this.menu.width( "" ).outerWidth() + 1
                ) );
        },

        _getCreateOptions: function() {
                var options = this._super();

                options.disabled = this.element.prop( "disabled" );

                return options;
        },

        _parseOptions: function( options ) {
                var that = this,
                        data = [];
                options.each( function( index, item ) {
                        data.push( that._parseOption( $( item ), index ) );
                } );
                this.items = data;
        },

        _parseOption: function( option, index ) {
                var optgroup = option.parent( "optgroup" );

                return {
                        element: option,
                        index: index,
                        value: option.val(),
                        label: option.text(),
                        optgroup: optgroup.attr( "label" ) || "",
                        disabled: optgroup.prop( "disabled" ) || option.prop( "disabled" )
                };
        },

        _destroy: function() {
                this._unbindFormResetHandler();
                this.menuWrap.remove();
                this.button.remove();
                this.element.show();
                this.element.removeUniqueId();
                this.labels.attr( "for", this.ids.element );
        }
} ] );

} ) );