Window

Window 인터페이스는 DOM 문서를 담은 창을 나타냅니다. document 속성이 창에 불러온 DOM 문서를 가리킵니다. 반대로, 주어진 문서의 창은 document.defaultView를 사용해 접근할 수 있습니다.

JavaScript 코드에 노출된 전역 변수 window는 현재 스크립트가 작동 중인 창을 나타냅니다.

Window 인터페이스는 다양한 함수, 이름공간, 객체, 생성자가 머무는 장소입니다. 그 중엔 사용자 인터페이스로서의 창 개념과는 직접 관련되지 않은 것도 존재하며, 대신 전역적으로 접근할 수 있어야 하는 항목에 적합합니다. 많은 수의 항목이 JavaScript 참고서DOM 참고서에 문서화되어 있습니다.

탭 기능이 있는 브라우저에서는 각각의 탭을 각각의 Window 객체로 나타냅니다. 주어진 탭에서 동작 중인 JavaScript 코드의 전역 window 객체는 항상 자신의 탭을 나타냅니다. 그렇지만 resizeTo()innerHeight처럼, 일부 속성과 메서드는 탭이 아닌 창 전체에 적용됩니다. 보통 탭과 합리적으로는 연관 지을 수 없는 경우 창에 속합니다.

생성자

DOM 인터페이스도 참고하세요.

DOMParser
DOMParser는 문자열에 저장한 XML 또는 HTML 소스 코드를 DOM Document로 구문 분석할 수 있습니다. DOMParserDOM Parsing and Serialization 명세의 일부입니다.
Image
HTMLImageElement를 생성할 때 사용합니다.
Option
HTMLOptionElement를 생성할 때 사용합니다.
Window.StaticRange This is an experimental API that should not be used in production code. Read only
StaticRange 객체를 생성하는 StaticRange() 생성자를 반환합니다.
Worker
Web Worker 생성에 사용합니다.
Window.XMLSerializer
DOM 트리를 XML 또는 HTML 소스로 변환합니다.

속성

EventTarget의 속성을 상속하고, WindowOrWorkerGlobalScopeWindowEventHandlers 믹스인의 속성을 구현합니다.

Window.closed Read only
현재 창이 닫혔는지 나타냅니다.
Window.console Read only
브라우저 디버깅 콘솔에 접근할 수 있는 콘솔 객체를 반환합니다.
Window.controllers Read only This API has not been standardized.
현재 크롬 창의 XUL 컨트롤러 객체를 반환합니다.
Window.customElements Read only
새로운 사용자 지정 요소를 등록하거나, 이전에 등록한 요소에 대한 정보를 얻을 수 있는 CustomElementRegistry 객체를 반환합니다.
Window.crypto Read only
브라우저 암호화 객체를 반환합니다.
Window.devicePixelRatio Read only
현재 화면에서의 물리적 픽셀과 CSS 픽셀의 비율을 반환합니다.
Window.document Read only
창이 포함하는 문서로의 참조를 반환합니다.
Window.DOMMatrix Read only This is an experimental API that should not be used in production code.
Returns a reference to a DOMMatrix object, which represents 4x4 matrices, suitable for 2D and 3D operations.
Window.DOMMatrixReadOnly Read only This is an experimental API that should not be used in production code.
Returns a reference to a DOMMatrixReadOnly object, which represents 4x4 matrices, suitable for 2D and 3D operations.
Window.DOMPoint Read only This is an experimental API that should not be used in production code.
Returns a reference to a DOMPoint object, which represents a 2D or 3D point in a coordinate system.
Window.DOMPointReadOnly Read only This is an experimental API that should not be used in production code.
Returns a reference to a DOMPointReadOnly object, which represents a 2D or 3D point in a coordinate system.
Window.DOMQuad Read only This is an experimental API that should not be used in production code.
Returns a reference to a DOMQuad object, which provides represents a quadrilaterial object, that is one having four corners and four sides.
Window.DOMRect Read only This is an experimental API that should not be used in production code.
Returns a reference to a DOMRect object, which represents a rectangle.
Window.DOMRectReadOnly Read only This is an experimental API that should not be used in production code.
Returns a reference to a DOMRectReadOnly object, which represents a rectangle.
Window.event Read only
Returns the current event, which is the event currently being handled by the JavaScript code's context, or undefined if no event is currently being handled. The Event object passed directly to event handlers should be used instead whenever possible.
Window.frameElement Read only
이 창을 삽입했을 때 사용한 요소를 반환합니다. 창이 문서 내에 삽입된 것이 아니면 null을 반환합니다.
Window.frames Read only
현재 창의 하위 프레임을 배열로 반환합니다.
Window.fullScreen
현재 창을 전체 화면으로 보여주고 있는지 나타냅니다.
Window.history Read only
Returns a reference to the history object.
Window.innerHeight Read only
Gets the height of the content area of the browser window including, if rendered, the horizontal scrollbar.
Window.innerWidth Read only
Gets the width of the content area of the browser window including, if rendered, the vertical scrollbar.
Window.isSecureContext This is an experimental API that should not be used in production code. Read only
Indicates whether a context is capable of using features that require secure contexts.
Window.length Read only
Returns the number of frames in the window. See also window.frames.
Window.location
Gets/sets the location, or current URL, of the window object.
Window.locationbar Read only
Returns the locationbar object, whose visibility can be toggled in the window.
Window.localStorage Read only
Returns a reference to the local storage object used to store data that may only be accessed by the origin that created it.
Window.menubar Read only
Returns the menubar object, whose visibility can be toggled in the window.
Window.messageManager
Returns the message manager object for this window.
Window.mozInnerScreenX Read only This API has not been standardized.
Returns the horizontal (X) coordinate of the top-left corner of the window's viewport, in screen coordinates. This value is reported in CSS pixels. See mozScreenPixelsPerCSSPixel in nsIDOMWindowUtils for a conversion factor to adapt to screen pixels if needed.
Window.mozInnerScreenY Read only This API has not been standardized.
Returns the vertical (Y) coordinate of the top-left corner of the window's viewport, in screen coordinates. This value is reported in CSS pixels. See mozScreenPixelsPerCSSPixel for a conversion factor to adapt to screen pixels if needed.
Window.name
Gets/sets the name of the window.
Window.navigator Read only
Returns a reference to the navigator object.
Window.opener
현재 창을 열었던 다른 창의 참조를 반환합니다.
Window.outerHeight Read only
브라우저 창 외곽 높이를 반환합니다.
Window.outerWidth Read only
브라우저 창 외곽 너비를 반환합니다.
Window.pageXOffset Read only
An alias for window.scrollX.
Window.pageYOffset Read only
An alias for window.scrollY
Window.parent Read only
Returns a reference to the parent of the current window or subframe.
Window.performance Read only
Returns a Performance object, which includes the timing and navigation attributes, each of which is an object providing performance-related data. See also Using Navigation Timing for additional information and examples.
Window.personalbar Read only
Returns the personalbar object, whose visibility can be toggled in the window.
Window.screen Read only
Returns a reference to the screen object associated with the window.
Window.screenX and Window.screenLeft Read only
Both properties return the horizontal distance from the left border of the user's browser viewport to the left side of the screen.
Window.screenY and Window.screenTop Read only
Both properties return the vertical distance from the top border of the user's browser viewport to the top side of the screen.
Window.scrollbars Read only
Returns the scrollbars object, whose visibility can be toggled in the window.
Window.scrollMaxX This API has not been standardized. Read only
The maximum offset that the window can be scrolled to horizontally, that is the document width minus the viewport width.
Window.scrollMaxY This API has not been standardized. Read only
The maximum offset that the window can be scrolled to vertically (i.e., the document height minus the viewport height).
Window.scrollX Read only
Returns the number of pixels that the document has already been scrolled horizontally.
Window.scrollY Read only
Returns the number of pixels that the document has already been scrolled vertically.
Window.self Read only
Returns an object reference to the window object itself.
Window.sessionStorage
Returns a reference to the session storage object used to store data that may only be accessed by the origin that created it.
Window.sidebar This API has not been standardized. Read only
Returns a reference to the window object of the sidebar.
Window.speechSynthesis Read only
Returns a SpeechSynthesis object, which is the entry point into using Web Speech API speech synthesis functionality.
Window.status
Gets/sets the text in the statusbar at the bottom of the browser.
Window.statusbar Read only
Returns the statusbar object, whose visibility can be toggled in the window.
Window.toolbar Read only
Returns the toolbar object, whose visibility can be toggled in the window.
Window.top Read only
Returns a reference to the topmost window in the window hierarchy. This property is read only.
Window.visualViewport Read only
Returns a VisualViewport object which represents the visual viewport for a given window.
Window.window Read only
Returns a reference to the current window.
window[0], window[1], etc.
Returns a reference to the window object in the frames. See Window.frames for more details.

Properties implemented from elsewhere

WindowOrWorkerGlobalScope.caches Read only
Returns the CacheStorage object associated with the current context. This object enables functionality such as storing assets for offline use, and generating custom responses to requests.
WindowOrWorkerGlobalScope.indexedDB Read only
Provides a mechanism for applications to asynchronously access capabilities of indexed databases; returns an IDBFactory object.
WindowOrWorkerGlobalScope.isSecureContext Read only
Returns a boolean indicating whether the current context is secure (true) or not (false).
WindowOrWorkerGlobalScope.origin Read only
Returns the global object's origin, serialized as a string. (This does not yet appear to be implemented in any browser.)

메서드

EventTarget의 메서드를 상속하고, WindowOrWorkerGlobalScopeWindowEventHandlers 믹스인의 메서드를 구현합니다.

Window.alert()
경고 대화 상자를 표시합니다.
Window.blur()
Sets focus away from the window.
Window.cancelAnimationFrame() This is an experimental API that should not be used in production code.
Enables you to cancel a callback previously scheduled with Window.requestAnimationFrame.
Window.cancelIdleCallback() This is an experimental API that should not be used in production code.
Enables you to cancel a callback previously scheduled with Window.requestIdleCallback.
Window.clearImmediate()
Cancels the repeated execution set using setImmediate.
Window.close()
Closes the current window.
Window.confirm()
Displays a dialog with a message that the user needs to respond to.
Window.dispatchEvent()
Used to trigger an event.
Window.dump() This API has not been standardized.
Writes a message to the console.
Window.find()
Searches for a given string in a window.
Window.focus()
Sets focus on the current window.
Window.getComputedStyle()
Gets computed style for the specified element. Computed style indicates the computed values of all CSS properties of the element.
Window.getDefaultComputedStyle() This API has not been standardized.
Gets default computed style for the specified element, ignoring author stylesheets.
Window.getSelection()
Returns the selection object representing the selected item(s).
Window.matchMedia()
Returns a MediaQueryList object representing the specified media query string.
Window.maximize()
FIXME: NeedsContents
Window.minimize() (top-level XUL windows only)
Minimizes the window.
Window.moveBy()
Moves the current window by a specified amount.
Window.moveTo()
Moves the window to the specified coordinates.
Window.open()
Opens a new window.
Window.postMessage()
Provides a secure means for one window to send a string of data to another window, which need not be within the same domain as the first.
Window.print()
Opens the Print Dialog to print the current document.
Window.prompt()
Returns the text entered by the user in a prompt dialog.
Window.requestAnimationFrame()
Tells the browser that an animation is in progress, requesting that the browser schedule a repaint of the window for the next animation frame.
Window.requestIdleCallback() This is an experimental API that should not be used in production code.
Enables the scheduling of tasks during a browser's idle periods.
Window.resizeBy()
Resizes the current window by a certain amount.
Window.resizeTo()
Dynamically resizes window.
Window.scroll()
Scrolls the window to a particular place in the document.
Window.scrollBy()
Scrolls the document in the window by the given amount.
Window.scrollByLines() This API has not been standardized.
Scrolls the document by the given number of lines.
Window.scrollByPages() This API has not been standardized.
Scrolls the current document by the specified number of pages.
Window.scrollTo()
Scrolls to a particular set of coordinates in the document.
Window.setCursor() This API has not been standardized. (top-level XUL windows only)
Changes the cursor for the current window
Window.setImmediate()
Executes a function after the browser has finished other heavy tasks
Window.setResizable() This API has not been standardized.
Toggles a user's ability to resize a window.
Window.sizeToContent() This API has not been standardized.
Sizes the window according to its content.
Window.stop()
This method stops window loading.
Window.updateCommands() This API has not been standardized.
Updates the state of commands of the current chrome window (UI).

Methods implemented from elsewhere

EventTarget.addEventListener()
Register an event handler to a specific event type on the window.
WindowOrWorkerGlobalScope.atob()
Decodes a string of data which has been encoded using base-64 encoding.
WindowOrWorkerGlobalScope.btoa()
Creates a base-64 encoded ASCII string from a string of binary data.
WindowOrWorkerGlobalScope.clearInterval()
Cancels the repeated execution set using WindowOrWorkerGlobalScope.setInterval().
WindowOrWorkerGlobalScope.clearTimeout()
Cancels the delayed execution set using WindowOrWorkerGlobalScope.setTimeout().
WindowOrWorkerGlobalScope.createImageBitmap()
Accepts a variety of different image sources, and returns a Promise which resolves to an ImageBitmap. Optionally the source is cropped to the rectangle of pixels originating at (sx, sy) with width sw, and height sh.
WindowOrWorkerGlobalScope.fetch()
Starts the process of fetching a resource from the network.
EventTarget.removeEventListener
Removes an event listener from the window.
WindowOrWorkerGlobalScope.setInterval()
Schedules a function to execute every time a given number of milliseconds elapses.
WindowOrWorkerGlobalScope.setTimeout()
Schedules a function to execute in a given amount of time.

이벤트 처리기

These are properties of the window object that can be set to establish event handlers for the various things that can happen in the window that might be of interest.

This interface inherits event handlers from the EventTarget interface and implements event handlers from WindowEventHandlers.

Window.onappinstalled
Called when the page is installed as a webapp. See appinstalled event.
Window.onbeforeinstallprompt
An event handler property dispatched before a user is prompted to save a web site to a home screen on mobile.
Window.ondevicelight
An event handler property for any ambient light levels changes
Window.ondevicemotion
Called if accelerometer detects a change (For mobile devices)
Window.ondeviceorientation
Called when the orientation is changed (For mobile devices)
Window.ondeviceorientationabsolute This API has not been standardized.
An event handler property for any device orientation changes.
Window.ondeviceproximity
An event handler property for device proximity event
Window.ongamepadconnected
Represents an event handler that will run when a gamepad is connected (when the gamepadconnected event fires).
Window.ongamepaddisconnected
Represents an event handler that will run when a gamepad is disconnected (when the gamepaddisconnected event fires).
Window.onmozbeforepaint
An event handler property for the MozBeforePaint event, which is sent before repainting the window if the event has been requested by a call to the Window.mozRequestAnimationFrame() method.
Window.onpaint
An event handler property for paint events on the window.
Window.onrejectionhandled This is an experimental API that should not be used in production code.
An event handler for handled Promise rejection events.
Window.onuserproximity
An event handler property for user proximity events.
Window.onvrdisplayconnect
Represents an event handler that will run when a compatible VR device has been connected to the computer (when the vrdisplayconnected event fires).
Window.onvrdisplaydisconnect
Represents an event handler that will run when a compatible VR device has been disconnected from the computer (when the vrdisplaydisconnected event fires).
Window.onvrdisplayactivate
Represents an event handler that will run when a display is able to be presented to (when the vrdisplayactivate event fires), for example if an HMD has been moved to bring it out of standby, or woken up by being put on.
Window.onvrdisplaydeactivate
Represents an event handler that will run when a display can no longer be presented to (when the vrdisplaydeactivate event fires), for example if an HMD has gone into standby or sleep mode due to a period of inactivity.
Window.onvrdisplayblur
Represents an event handler that will run when presentation to a display has been paused for some reason by the browser, OS, or VR hardware (when the vrdisplayblur event fires) — for example, while the user is interacting with a system menu or browser, to prevent tracking or loss of experience.
Window.onvrdisplayfocus
Represents an event handler that will run when presentation to a display has resumed after being blurred (when the vrdisplayfocus event fires).
Window.onvrdisplaypresentchange
represents an event handler that will run when the presenting state of a VR device changes — i.e. goes from presenting to not presenting, or vice versa (when the vrdisplaypresentchange event fires).

Event handlers implemented from elsewhere

GlobalEventHandlers.onabort
Called when the loading of a resource has been aborted, such as by a user canceling the load while it is still in progress
WindowEventHandlers.onafterprint
Called when the print dialog box is closed. See afterprint event.
WindowEventHandlers.onbeforeprint
Called when the print dialog box is opened. See beforeprint event.
WindowEventHandlers.onbeforeunload
An event handler property for before-unload events on the window.
GlobalEventHandlers.onblur
Called after the window loses focus, such as due to a popup.
GlobalEventHandlers.onchange
An event handler property for change events on the window.
GlobalEventHandlers.onclick
Called after the ANY mouse button is pressed & released
GlobalEventHandlers.ondblclick
Called when a double click is made with ANY mouse button.
GlobalEventHandlers.onclose
Called after the window is closed
GlobalEventHandlers.oncontextmenu
Called when the RIGHT mouse button is pressed
GlobalEventHandlers.onerror
Called when a resource fails to load OR when an error occurs at runtime. See error event.
GlobalEventHandlers.onfocus
Called after the window receives or regains focus. See focus events.
WindowEventHandlers.onhashchange
An event handler property for hashchange events on the window; called when the part of the URL after the hash mark ("#") changes.
GlobalEventHandlers.oninput
Called when the value of an <input> element changes
GlobalEventHandlers.onkeydown
Called when you begin pressing ANY key. See keydown event.
GlobalEventHandlers.onkeypress
Called when a key (except Shift, Fn, and CapsLock) is in pressed position. See keypress event.
GlobalEventHandlers.onkeyup
Called when you finish releasing ANY key. See keyup event.
WindowEventHandlers.onlanguagechange
An event handler property for languagechange events on the window.
GlobalEventHandlers.onload
Called after all resources and the DOM are fully loaded. WILL NOT get called when the page is loaded from cache, such as with back button.
WindowEventHandlers.onmessage
Is an EventHandler representing the code to be called when the message event is raised.
GlobalEventHandlers.onmousedown
Called when ANY mouse button is pressed.
GlobalEventHandlers.onmousemove
Called continously when the mouse is moved inside the window.
GlobalEventHandlers.onmouseout
Called when the pointer leaves the window.
GlobalEventHandlers.onmouseover
Called when the pointer enters the window
GlobalEventHandlers.onmouseup
Called when ANY mouse button is released
WindowEventHandlers.onoffline
Called when network connection is lost. See offline event.
WindowEventHandlers.ononline
Called when network connection is established. See online event.
WindowEventHandlers.onpagehide
Called when the user navigates away from the page, before the onunload event. See pagehide event.
WindowEventHandlers.onpageshow
Called after all resources and the DOM are fully loaded. See pageshow event.
WindowEventHandlers.onpopstate
Called when a back button is pressed.
GlobalEventHandlers.onreset
Called when a form is reset
GlobalEventHandlers.onresize
Called continuously as you are resizing the window.
GlobalEventHandlers.onscroll
Called when the scroll bar is moved via ANY means. If the resource fully fits in the window, then this event cannot be invoked
GlobalEventHandlers.onwheel
Called when the mouse wheel is rotated around any axis
GlobalEventHandlers.onselect
Called after text in an input field is selected
GlobalEventHandlers.onselectionchange
Is an EventHandler representing the code to be called when the selectionchange event is raised.
WindowEventHandlers.onstorage
Called when there is a change in session storage or local storage. See storage event
GlobalEventHandlers.onsubmit
Called when a form is submitted
WindowEventHandlers.onunhandledrejection This is an experimental API that should not be used in production code.
An event handler for unhandled Promise rejection events.
WindowEventHandlers.onunload
Called when the user navigates away from the page.

이벤트

Listen to these events using addEventListener() or by assigning an event listener to the oneventname property of this interface.

error
Fired when when a resource failed to load, or can't be used. For example, if a script has an execution error or an image can't be found or is invalid.
Also available via the onerror property.
languagechange
Fired at the global scope object when the user's preferred language changes.
Also available via the onlanguagechange property.
orientationchange
Fired when the orientation of the device has changed.
Also available via the onorientationchange property.
devicemotion
Fired at a regular interval, indicating the amount of physical force of acceleration the device is receiving and the rate of rotation, if available.
deviceorientation
Fired when fresh data is available from the magnetometer orientation sensor about the current orientation of the device as compared to the Earth coordinate frame.
resize
Fired when the window has been resized.
Also available via the onresize property.
storage
Fired when a storage area (localStorage or sessionStorage) has been modified in the context of another document.
Also available via the onstorage property.

Animation events

animationcancel
Fired when an animation unexpectedly aborts.
Also available via the onanimationcancel property.
animationend
Fired when an animation has completed normally.
Also available via the onanimationend property.
animationiteration
Fired when an animation iteration has completed.
Also available via the onanimationiteration property.
animationstart
Fired when an animation starts.
Also available via the onanimationstart property.

Clipboard events

clipboardchange
Fired when the system clipboard content changes.
copy
Fired when the user initiates a copy action through the browser's user interface.
Also available via the oncopy property.
cut
Fired when the user initiates a cut action through the browser's user interface.
Also available via the oncut property.
paste
Fired when the user initiates a paste action through the browser's user interface.
Also available via the onpaste property.

Connection events

offline
Fired when the browser has lost access to the network and the value of navigator.onLine has switched to false.
Also available via the onoffline property.
online
Fired when the browser has gained access to the network and the value of navigator.onLine has switched to true.
Also available via the ononline property.

Focus events

blur
Fired when an element has lost focus.
Also available via the onblur property.
focus
Fired when an element has gained focus.
Also available via the onfocus property

Gamepad events

gamepadconnected
Fired when the browser detects that a gamepad has been connected or the first time a button/axis of the gamepad is used.
Also available via the ongamepadconnected property.
gamepaddisconnected
Fired when the browser detects that a gamepad has been disconnected.
Also available via the ongamepaddisconnected property

History events

hashchange
Fired when the fragment identifier of the URL has changed (the part of the URL beginning with and following the # symbol).
Also available via the onhashchange property.
pagehide
Sent when the browser hides the current document while in the process of switching to displaying in its place a different document from the session's history. This happens, for example, when the user clicks the Back button or when they click the Forward button to move ahead in session history.
Also available through the onpagehide event handler property.
pageshow
Sent when the browser makes the document visible due to navigation tasks, including not only when the page is first loaded, but also situations such as the user navigating back to the page after having navigated to another within the same tab.
Also available using the onpageshow event handler property.
popstate
Fired when the active history entry changes.
Also available using the onpopstate event handler property.

Load & unload events

beforeunload
Fired when the window, the document and its resources are about to be unloaded.
Also available via the onbeforeunload property.
DOMContentLoaded
Fired when the document has been completely loaded and parsed, without waiting for stylesheets, images, and subframes to finish loading.
load
Fired when the whole page has loaded, including all dependent resources such as stylesheets images.
Also available via the onload property.
unload
Fired when the document or a child resource is being unloaded.
Also available via the onunload property.

Manifest events

appinstalled
Fired when the browser has successfully installed a page as an application.
Also available via the onappinstalled property.
beforeinstallprompt
Fired when a user is about to be prompted to install a web application.
Also available via the onbeforeinstallprompt property.

Messaging events

message
Fired when the window receives a message, for example from a call to Window.postMessage() from another browsing context.
Also available via the onmessage property.
messageerror
Fired when a Window object receives a message that can't be deserialized.
Also available via the onmessageerror property.
afterprint
Fired after the associated document has started printing or the print preview has been closed.
Also available via the onafterprint property.
beforeprint
Fired when the associated document is about to be printed or previewed for printing.
Also available via the onbeforeprint property.

Promise rejection events

rejectionhandled
Sent every time a JavaScript Promise is rejected, regardless of whether or not there is a handler in place to catch the rejection.
Also available through the onrejectionhandled event handler property.
unhandledrejection
Sent when a JavaScript Promise is rejected but there is no handler in place to catch the rejection.
Also available using the onunhandledrejection event handler property.

Transition events

transitioncancel
Fired when a CSS transition is canceled.
Also available via the ontransitioncancel property.
transitionend
Fired when a CSS transition has completed.
Also available via the ontransitionend property.
transitionrun
Fired when a CSS transition is first created.
Also available via the ontransitionrun property.
transitionstart
Fired when a CSS transition has actually started.
Also available via the ontransitionstart property.

WebVR events

vrdisplayactivate
Fired when a VR display becomes available to be presented to, for example if an HMD has been moved to bring it out of standby, or woken up by being put on.
Also available via the onvrdisplayactivate property.
vrdisplayblur
Fired when presentation to a VR display has been paused for some reason by the browser, OS, or VR hardware.
Also available via the onvrdisplayblur property.
vrdisplayconnect
Fired when a compatible VR display is connected to the computer.
Also available via the onvrdisplayconnect property.
vrdisplaydeactivate
Fired when a VR display can no longer be presented to, for example if an HMD has gone into standby or sleep mode due to a period of inactivity.
Also available via the onvrdisplaydeactivate property.
vrdisplaydisconnect
Fired when a compatible VR display is disconnected from the computer.
Also available via the onvrdisplaydisconnect property.
vrdisplayfocus
Fired when presentation to a VR display has resumed after being blurred.
Also available via the onvrdisplayfocus property.
vrdisplaypresentchange
Fired when the presenting state of a VR display changes — i.e. goes from presenting to not presenting, or vice versa.
Also available via the onvrdisplaypresentchange property.
vrdisplaypointerrestricted
Fired when the VR display's pointer input is restricted to consumption via a pointerlocked element.
Also available via the onvrdisplaypointerrestricted property.
vrdisplaypointerunrestricted
Fired when the VR display's pointer input is no longer restricted to consumption via a pointerlocked element.
Also available via the onvrdisplaypointerunrestricted property.

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