/*! * jQuery UI Selectmenu 1.13.3 * https://jqueryui.com * * Copyright OpenJS Foundation and other contributors * Released under the MIT license. * https://jquery.org/license */ //>>label: Selectmenu //>>group: Widgets /* eslint-disable max-len */ //>>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. /* eslint-enable max-len */ //>>docs: https://api.jqueryui.com/selectmenu/ //>>demos: https://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 ) { "use strict"; if ( typeof define === "function" && define.amd ) { // AMD. Register as an anonymous module. define( [ "jquery", "./menu", "../form-reset-mixin", "../keycode", "../labels", "../position", "../unique-id", "../version", "../widget" ], factory ); } else { // Browser globals factory( jQuery ); } } )( function( $ ) { "use strict"; return $.widget( "ui.selectmenu", [ $.ui.formResetMixin, { version: "1.13.3", 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.trigger( "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 = $( "<div>", { title: item.element.attr( "title" ) } ); if ( item.disabled ) { this._addClass( li, null, "ui-state-disabled" ); } if ( item.hidden ) { li.prop( "hidden", true ); } else { this._setText( wrapper, item.label ); } return li.append( wrapper ).appendTo( ul ); }, _setText: function( element, value ) { if ( value ) { element.text( value ); } else { element.html( " " ); } }, _move: function( direction, event ) { var item, next, filter = ".ui-menu-item"; if ( this.isOpen ) { item = this.menuItems.eq( this.focusIndex ).parent( "li" ); } else { item = this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" ); filter += ":not(.ui-state-disabled)"; } if ( direction === "first" || direction === "last" ) { next = item[ direction === "first" ? "prevAll" : "nextAll" ]( filter ).eq( -1 ); } else { next = item[ direction + "All" ]( filter ).eq( 0 ); } if ( next.length ) { this.menuInstance.focus( event, next ); } }, _getSelectedItem: function() { return this.menuItems.eq( this.element[ 0 ].selectedIndex ).parent( "li" ); }, _toggle: function( event ) { this[ this.isOpen ? "close" : "open" ]( event ); }, _setSelection: function() { var selection; if ( !this.range ) { return; } if ( window.getSelection ) { selection = window.getSelection(); selection.removeAllRanges(); selection.addRange( this.range ); // Support: IE8 } else { this.range.select(); } // Support: IE // Setting the text selection kills the button focus in IE, but // restoring the focus doesn't kill the selection. this.button.trigger( "focus" ); }, _documentClick: { mousedown: function( event ) { if ( !this.isOpen ) { return; } if ( !$( event.target ).closest( ".ui-selectmenu-menu, #" + $.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(), hidden: optgroup.prop( "hidden" ) || option.prop( "hidden" ), 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 ); } } ] ); } );

ميديا

“ألعاب الواقع الافتراضي: رحلة إلى عوالم تفاعلية غامرة”

يونيو 12, 2025

2٬566 أقل من دقيقة

في هذا التقرير المصور، نأخذك في جولة بصرية داخل عالم ألعاب الواقع الافتراضي (VR)، حيث تندمج التكنولوجيا مع الترفيه لخلق تجارب لا مثيل لها. من خلال نظارات الواقع الافتراضي المتطورة، يمكن للاعبين التفاعل مع بيئات ثلاثية الأبعاد، مما يتيح لهم الانغماس الكامل في الألعاب. سنستعرض أبرز الألعاب المتاحة، مثل “Beat Saber” و”Half-Life: Alyx”، التي تقدم تجارب تفاعلية مبتكرة. كما نسلط الضوء على التحديات التي تواجه هذه التقنية، مثل التكلفة المرتفعة ومشاكل الراحة أثناء الاستخدام الطويل. انضم إلينا لاكتشاف كيف يُعيد الواقع الافتراضي تعريف مفهوم اللعب ويشكل مستقبل صناعة الألعاب.