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/**
* Copyright (c) Meta Platforms, Inc. and affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* Copyright (c) Microsoft Corporation. All rights reserved.
* Modifications Copyright (c) Meta Platforms, Inc. and affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of the
* License at http://www.apache.org/licenses/LICENSE-2.0
* THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
* WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
* MERCHANTABLITY OR NON-INFRINGEMENT.
* See the Apache Version 2.0 License for specific language governing permissions
* and limitations under the License.
*
* Portions copyright (c) World Wide Web Consortium, (Massachusetts Institute
* of Technology, European Research Consortium for Informatics and Mathematics,
* Keio University, Beihang). All Rights Reserved. This work is distributed
* under the W3C Software and Document License [1] in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* [1] http://www.w3.org/Consortium/Legal/copyright-software
*
* @flow
*/
// @lint-ignore-every LICENSELINT
/* Files */
declare class Blob {
constructor(blobParts?: Array<any>, options?: {
type?: string,
endings?: string,
...
}): void;
isClosed: boolean;
size: number;
type: string;
close(): void;
slice(start?: number, end?: number, contentType?: string): Blob;
arrayBuffer(): Promise<ArrayBuffer>;
text(): Promise<string>,
stream(): ReadableStream,
}
declare class FileReader extends EventTarget {
+EMPTY: 0;
+LOADING: 1;
+DONE: 2;
+error: null | DOMError;
+readyState: 0 | 1 | 2;
+result: null | string | ArrayBuffer;
abort(): void;
onabort: null | (ev: ProgressEvent) => any;
onerror: null | (ev: ProgressEvent) => any;
onload: null | (ev: ProgressEvent) => any;
onloadend: null | (ev: ProgressEvent) => any;
onloadstart: null | (ev: ProgressEvent) => any;
onprogress: null | (ev: ProgressEvent) => any;
readAsArrayBuffer(blob: Blob): void;
readAsBinaryString(blob: Blob): void;
readAsDataURL(blob: Blob): void;
readAsText(blob: Blob, encoding?: string): void;
}
declare type FilePropertyBag = {
type?: string,
lastModified?: number,
...
};
declare class File extends Blob {
constructor(
fileBits: $ReadOnlyArray<string | BufferDataSource | Blob>,
filename: string,
options?: FilePropertyBag,
): void;
lastModified: number;
name: string;
}
declare class FileList {
@@iterator(): Iterator<File>;
length: number;
item(index: number): File;
[index: number]: File;
}
/* DataTransfer */
declare class DataTransfer {
clearData(format?: string): void;
getData(format: string): string;
setData(format: string, data: string): void;
setDragImage(image: Element, x: number, y: number): void;
dropEffect: string;
effectAllowed: string;
files: FileList; // readonly
items: DataTransferItemList; // readonly
types: Array<string>; // readonly
}
declare class DataTransferItemList {
@@iterator(): Iterator<DataTransferItem>;
length: number; // readonly
[index: number]: DataTransferItem;
add(data: string, type: string): ?DataTransferItem;
add(data: File): ?DataTransferItem;
remove(index: number): void;
clear(): void;
};
declare class DataTransferItem {
kind: string; // readonly
type: string; // readonly
getAsString(_callback: ?(data: string) => mixed): void;
getAsFile(): ?File;
/*
* This is not supported by all browsers, please have a fallback plan for it.
* For more information, please checkout
* https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItem/webkitGetAsEntry
*/
webkitGetAsEntry(): void | () => any;
};
/* DOM */
declare type DOMStringMap = { [key:string]: string, ... }
declare class DOMStringList {
+[key:number]: string;
+length: number;
item(number): string | null;
contains(string): boolean;
}
declare class DOMError {
name: string;
}
declare type ElementDefinitionOptions = { extends?: string, ... }
declare interface CustomElementRegistry {
define(name: string, ctor: Class<Element>, options?: ElementDefinitionOptions): void;
get(name: string): any;
whenDefined(name: string): Promise<void>;
}
declare interface ShadowRoot extends DocumentFragment {
+delegatesFocus: boolean;
+host: Element;
// flowlint unsafe-getters-setters:off
get innerHTML(): string;
set innerHTML(value: string | TrustedHTML): void;
// flowlint unsafe-getters-setters:error
+mode: ShadowRootMode;
// From DocumentOrShadowRoot Mixin.
+styleSheets: StyleSheetList;
adoptedStyleSheets: Array<CSSStyleSheet>;
}
declare type ShadowRootMode = 'open'|'closed';
declare type ShadowRootInit = {
delegatesFocus?: boolean,
mode: ShadowRootMode,
...
}
declare type ScrollToOptions = {
top?: number;
left?: number;
behavior?: 'auto' | 'smooth';
...
}
type EventHandler = (event: Event) => mixed
type EventListener = { handleEvent: EventHandler, ... } | EventHandler
type MouseEventHandler = (event: MouseEvent) => mixed
type MouseEventListener = { handleEvent: MouseEventHandler, ... } | MouseEventHandler
type FocusEventHandler = (event: FocusEvent) => mixed
type FocusEventListener = { handleEvent: FocusEventHandler, ... } | FocusEventHandler
type KeyboardEventHandler = (event: KeyboardEvent) => mixed
type KeyboardEventListener = { handleEvent: KeyboardEventHandler, ... } | KeyboardEventHandler
type InputEventHandler = (event: InputEvent) => mixed
type InputEventListener = { handleEvent: InputEventHandler, ... } | InputEventHandler
type TouchEventHandler = (event: TouchEvent) => mixed
type TouchEventListener = { handleEvent: TouchEventHandler, ... } | TouchEventHandler
type WheelEventHandler = (event: WheelEvent) => mixed
type WheelEventListener = { handleEvent: WheelEventHandler, ... } | WheelEventHandler
type AbortProgressEventHandler = (event: ProgressEvent) => mixed
type AbortProgressEventListener = { handleEvent: AbortProgressEventHandler, ... } | AbortProgressEventHandler
type ProgressEventHandler = (event: ProgressEvent) => mixed
type ProgressEventListener = { handleEvent: ProgressEventHandler, ... } | ProgressEventHandler
type DragEventHandler = (event: DragEvent) => mixed
type DragEventListener = { handleEvent: DragEventHandler, ... } | DragEventHandler
type PointerEventHandler = (event: PointerEvent) => mixed
type PointerEventListener = { handleEvent: PointerEventHandler, ... } | PointerEventHandler
type AnimationEventHandler = (event: AnimationEvent) => mixed
type AnimationEventListener = { handleEvent: AnimationEventHandler, ... } | AnimationEventHandler
type ClipboardEventHandler = (event: ClipboardEvent) => mixed
type ClipboardEventListener = { handleEvent: ClipboardEventHandler, ... } | ClipboardEventHandler
type TransitionEventHandler = (event: TransitionEvent) => mixed
type TransitionEventListener = { handleEvent: TransitionEventHandler, ... } | TransitionEventHandler
type MessageEventHandler = (event: MessageEvent) => mixed
type MessageEventListener = { handleEvent: MessageEventHandler, ... } | MessageEventHandler
type BeforeUnloadEventHandler = (event: BeforeUnloadEvent) => mixed
type BeforeUnloadEventListener = { handleEvent: BeforeUnloadEventHandler, ... } | BeforeUnloadEventHandler
type StorageEventHandler = (event: StorageEvent) => mixed
type StorageEventListener = { handleEvent: StorageEventHandler, ... } | StorageEventHandler
type MediaKeySessionType = 'temporary' | 'persistent-license';
type MediaKeyStatus = 'usable' | 'expired' | 'released' | 'output-restricted' | 'output-downscaled' | 'status-pending' | 'internal-error';
type MouseEventTypes = 'contextmenu' | 'mousedown' | 'mouseenter' | 'mouseleave' | 'mousemove' | 'mouseout' | 'mouseover' | 'mouseup' | 'click' | 'dblclick';
type FocusEventTypes = 'blur' | 'focus' | 'focusin' | 'focusout';
type KeyboardEventTypes = 'keydown' | 'keyup' | 'keypress';
type InputEventTypes = 'input' | 'beforeinput'
type TouchEventTypes = 'touchstart' | 'touchmove' | 'touchend' | 'touchcancel';
type WheelEventTypes = 'wheel';
type AbortProgressEventTypes = 'abort';
type ProgressEventTypes = 'abort' | 'error' | 'load' | 'loadend' | 'loadstart' | 'progress' | 'timeout';
type DragEventTypes = 'drag' | 'dragend' | 'dragenter' | 'dragexit' | 'dragleave' | 'dragover' | 'dragstart' | 'drop';
type PointerEventTypes = 'pointerover' | 'pointerenter' | 'pointerdown' | 'pointermove' | 'pointerup' | 'pointercancel' | 'pointerout' | 'pointerleave' | 'gotpointercapture' | 'lostpointercapture';
type AnimationEventTypes = 'animationstart' | 'animationend' | 'animationiteration';
type ClipboardEventTypes = 'clipboardchange' | 'cut' | 'copy' | 'paste';
type TransitionEventTypes = 'transitionrun' | 'transitionstart' | 'transitionend' | 'transitioncancel';
type MessageEventTypes = string;
type BeforeUnloadEventTypes = 'beforeunload';
type StorageEventTypes = 'storage';
type EventListenerOptionsOrUseCapture = boolean | {
capture?: boolean,
once?: boolean,
passive?: boolean,
...
};
declare class EventTarget {
addEventListener(type: MouseEventTypes, listener: MouseEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: FocusEventTypes, listener: FocusEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: KeyboardEventTypes, listener: KeyboardEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: InputEventTypes, listener: InputEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: TouchEventTypes, listener: TouchEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: WheelEventTypes, listener: WheelEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: AbortProgressEventTypes, listener: AbortProgressEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: ProgressEventTypes, listener: ProgressEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: DragEventTypes, listener: DragEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: PointerEventTypes, listener: PointerEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: AnimationEventTypes, listener: AnimationEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: ClipboardEventTypes, listener: ClipboardEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: TransitionEventTypes, listener: TransitionEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: MessageEventTypes, listener: MessageEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: BeforeUnloadEventTypes, listener: BeforeUnloadEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: StorageEventTypes, listener: StorageEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
addEventListener(type: string, listener: EventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: MouseEventTypes, listener: MouseEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: FocusEventTypes, listener: FocusEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: KeyboardEventTypes, listener: KeyboardEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: InputEventTypes, listener: InputEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: TouchEventTypes, listener: TouchEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: WheelEventTypes, listener: WheelEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: AbortProgressEventTypes, listener: AbortProgressEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: ProgressEventTypes, listener: ProgressEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: DragEventTypes, listener: DragEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: PointerEventTypes, listener: PointerEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: AnimationEventTypes, listener: AnimationEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: ClipboardEventTypes, listener: ClipboardEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: TransitionEventTypes, listener: TransitionEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: MessageEventTypes, listener: MessageEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: BeforeUnloadEventTypes, listener: BeforeUnloadEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: StorageEventTypes, listener: StorageEventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
removeEventListener(type: string, listener: EventListener, optionsOrUseCapture?: EventListenerOptionsOrUseCapture): void;
attachEvent?: (type: MouseEventTypes, listener: MouseEventListener) => void;
attachEvent?: (type: FocusEventTypes, listener: FocusEventListener) => void;
attachEvent?: (type: KeyboardEventTypes, listener: KeyboardEventListener) => void;
attachEvent?: (type: InputEventTypes, listener: InputEventListener) => void;
attachEvent?: (type: TouchEventTypes, listener: TouchEventListener) => void;
attachEvent?: (type: WheelEventTypes, listener: WheelEventListener) => void;
attachEvent?: (type: AbortProgressEventTypes, listener: AbortProgressEventListener) => void;
attachEvent?: (type: ProgressEventTypes, listener: ProgressEventListener) => void;
attachEvent?: (type: DragEventTypes, listener: DragEventListener) => void;
attachEvent?: (type: PointerEventTypes, listener: PointerEventListener) => void;
attachEvent?: (type: AnimationEventTypes, listener: AnimationEventListener) => void;
attachEvent?: (type: ClipboardEventTypes, listener: ClipboardEventListener) => void;
attachEvent?: (type: TransitionEventTypes, listener: TransitionEventListener) => void;
attachEvent?: (type: MessageEventTypes, listener: MessageEventListener) => void;
attachEvent?: (type: BeforeUnloadEventTypes, listener: BeforeUnloadEventListener) => void;
attachEvent?: (type: StorageEventTypes, listener: StorageEventListener) => void;
attachEvent?: (type: string, listener: EventListener) => void;
detachEvent?: (type: MouseEventTypes, listener: MouseEventListener) => void;
detachEvent?: (type: FocusEventTypes, listener: FocusEventListener) => void;
detachEvent?: (type: KeyboardEventTypes, listener: KeyboardEventListener) => void;
detachEvent?: (type: InputEventTypes, listener: InputEventListener) => void;
detachEvent?: (type: TouchEventTypes, listener: TouchEventListener) => void;
detachEvent?: (type: WheelEventTypes, listener: WheelEventListener) => void;
detachEvent?: (type: AbortProgressEventTypes, listener: AbortProgressEventListener) => void;
detachEvent?: (type: ProgressEventTypes, listener: ProgressEventListener) => void;
detachEvent?: (type: DragEventTypes, listener: DragEventListener) => void;
detachEvent?: (type: PointerEventTypes, listener: PointerEventListener) => void;
detachEvent?: (type: AnimationEventTypes, listener: AnimationEventListener) => void;
detachEvent?: (type: ClipboardEventTypes, listener: ClipboardEventListener) => void;
detachEvent?: (type: TransitionEventTypes, listener: TransitionEventListener) => void;
detachEvent?: (type: MessageEventTypes, listener: MessageEventListener) => void;
detachEvent?: (type: BeforeUnloadEventTypes, listener: BeforeUnloadEventListener) => void;
detachEvent?: (type: StorageEventTypes, listener: StorageEventListener) => void;
detachEvent?: (type: string, listener: EventListener) => void;
dispatchEvent(evt: Event): boolean;
// Deprecated
cancelBubble: boolean;
initEvent(eventTypeArg: string, canBubbleArg: boolean, cancelableArg: boolean): void;
}
// https://dom.spec.whatwg.org/#dictdef-eventinit
type Event$Init = {
bubbles?: boolean,
cancelable?: boolean,
composed?: boolean,
/** Non-standard. See `composed` instead. */
scoped?: boolean,
...
}
// https://dom.spec.whatwg.org/#interface-event
declare class Event {
constructor(type: string, eventInitDict?: Event$Init): void;
/**
* Returns the type of event, e.g. "click", "hashchange", or "submit".
*/
+type: string;
/**
* Returns the object to which event is dispatched (its target).
*/
+target: EventTarget; // TODO: nullable
/** @deprecated */
+srcElement: Element; // TODO: nullable
/**
* Returns the object whose event listener's callback is currently being invoked.
*/
+currentTarget: EventTarget; // TODO: nullable
/**
* Returns the invocation target objects of event's path (objects on which
* listeners will be invoked), except for any nodes in shadow trees of which
* the shadow root's mode is "closed" that are not reachable from event's
* currentTarget.
*/
composedPath(): Array<EventTarget>;
+NONE: number;
+AT_TARGET: number;
+BUBBLING_PHASE: number;
+CAPTURING_PHASE: number;
/**
* Returns the event's phase, which is one of NONE, CAPTURING_PHASE, AT_TARGET,
* and BUBBLING_PHASE.
*/
+eventPhase: number;
/**
* When dispatched in a tree, invoking this method prevents event from reaching
* any objects other than the current object.
*/
stopPropagation(): void;
/**
* Invoking this method prevents event from reaching any registered event
* listeners after the current one finishes running and, when dispatched in a
* tree, also prevents event from reaching any other objects.
*/
stopImmediatePropagation(): void;
/**
* Returns true or false depending on how event was initialized. True if
* event goes through its target's ancestors in reverse tree order, and
* false otherwise.
*/
+bubbles: boolean;
/**
* Returns true or false depending on how event was initialized. Its
* return value does not always carry meaning, but true can indicate
* that part of the operation during which event was dispatched, can
* be canceled by invoking the preventDefault() method.
*/
+cancelable: boolean;
// returnValue: boolean; // legacy, and some subclasses still define it as a string!
/**
* If invoked when the cancelable attribute value is true, and while
* executing a listener for the event with passive set to false, signals to
* the operation that caused event to be dispatched that it needs to be
* canceled.
*/
preventDefault(): void;
/**
* Returns true if preventDefault() was invoked successfully to indicate
* cancelation, and false otherwise.
*/
+defaultPrevented: boolean;
/**
* Returns true or false depending on how event was initialized. True if
* event invokes listeners past a ShadowRoot node that is the root of its
* target, and false otherwise.
*/
+composed: boolean;
/**
* Returns true if event was dispatched by the user agent, and false otherwise.
*/
+isTrusted: boolean;
/**
* Returns the event's timestamp as the number of milliseconds measured relative
* to the time origin.
*/
+timeStamp: number;
/** Non-standard. See Event.prototype.composedPath */
+deepPath?: () => EventTarget[];
/** Non-standard. See Event.prototype.composed */
+scoped: boolean;
/**
* @deprecated
*/
initEvent(
type: string,
bubbles: boolean,
cancelable: boolean
): void;
}
type CustomEvent$Init = { ...Event$Init, detail?: any, ... }
declare class CustomEvent extends Event {
constructor(type: string, eventInitDict?: CustomEvent$Init): void;
detail: any;
// deprecated
initCustomEvent(
type: string,
bubbles: boolean,
cancelable: boolean,
detail: any
): CustomEvent;
}
type UIEvent$Init = { ...Event$Init, detail?: number, view?: any, ... }
declare class UIEvent extends Event {
constructor(typeArg: string, uiEventInit?: UIEvent$Init): void;
detail: number;
view: any;
}
declare class CompositionEvent extends UIEvent {
data: string | null;
locale: string,
}
type MouseEvent$MouseEventInit = {
screenX?: number,
screenY?: number,
clientX?: number,
clientY?: number,
ctrlKey?: boolean,
shiftKey?: boolean,
altKey?: boolean,
metaKey?: boolean,
button?: number,
buttons?: number,
region?: string | null,
relatedTarget?: EventTarget | null,
...
};
declare class MouseEvent extends UIEvent {
constructor(
typeArg: string,
mouseEventInit?: MouseEvent$MouseEventInit,
): void;
altKey: boolean;
button: number;
buttons: number;
clientX: number;
clientY: number;
ctrlKey: boolean;
metaKey: boolean;
movementX: number;
movementY: number;
offsetX: number;
offsetY: number;
pageX: number;
pageY: number;
region: string | null;
relatedTarget: EventTarget | null;
screenX: number;
screenY: number;
shiftKey: boolean;
x: number;
y: number;
getModifierState(keyArg: string): boolean;
}
declare class FocusEvent extends UIEvent {
relatedTarget: ?EventTarget;
}
type WheelEvent$Init = {
...MouseEvent$MouseEventInit,
deltaX?: number,
deltaY?: number,
deltaZ?: number;
deltaMode?: 0x00 | 0x01 | 0x02,
...
}
declare class WheelEvent extends MouseEvent {
static +DOM_DELTA_PIXEL: 0x00;
static +DOM_DELTA_LINE: 0x01;
static +DOM_DELTA_PAGE: 0x02;
constructor(type: string, eventInitDict?: WheelEvent$Init): void;
+deltaX: number;
+deltaY: number;
+deltaZ: number;
+deltaMode: 0x00 | 0x01 | 0x02;
}
declare class DragEvent extends MouseEvent {
dataTransfer: ?DataTransfer; // readonly
}
type PointerEvent$PointerEventInit = MouseEvent$MouseEventInit & {
pointerId?: number,
width?: number,
height?: number,
pressure?: number,
tangentialPressure?: number,
tiltX?: number,
tiltY?: number,
twist?: number,
pointerType?: string,
isPrimary?: boolean,
...
};
declare class PointerEvent extends MouseEvent {
constructor(
typeArg: string,
pointerEventInit?: PointerEvent$PointerEventInit,
): void;
pointerId: number;
width: number;
height: number;
pressure: number;
tangentialPressure: number;
tiltX: number;
tiltY: number;
twist: number;
pointerType: string;
isPrimary: boolean;
}
declare class ProgressEvent extends Event {
lengthComputable: boolean;
loaded: number;
total: number;
// Deprecated
initProgressEvent(
typeArg: string,
canBubbleArg: boolean,
cancelableArg: boolean,
lengthComputableArg: boolean,
loadedArg: number,
totalArg: number
): void;
}
declare class PromiseRejectionEvent extends Event {
promise: Promise<any>;
reason: any;
}
type PageTransitionEventInit = {
...Event$Init,
persisted: boolean,
...
}
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#the-pagetransitionevent-interface
declare class PageTransitionEvent extends Event {
constructor(type: string, init?: PageTransitionEventInit): void;
+persisted: boolean;
}
// used for websockets and postMessage, for example. See:
// https://www.w3.org/TR/2011/WD-websockets-20110419/
// and
// https://www.w3.org/TR/2008/WD-html5-20080610/comms.html
// and
// https://html.spec.whatwg.org/multipage/comms.html#the-messageevent-interfaces
declare class MessageEvent extends Event {
data: mixed;
origin: string;
lastEventId: string;
source: WindowProxy;
}
// https://www.w3.org/TR/eventsource/
declare class EventSource extends EventTarget {
constructor(url: string, configuration?: { withCredentials: boolean, ... }): void;
+CLOSED: 2;
+CONNECTING: 0;
+OPEN: 1;
+readyState: 0 | 1 | 2;
+url: string;
+withCredentials: boolean;
onerror: () => void;
onmessage: MessageEventListener;
onopen: () => void;
close: () => void;
}
// https://w3c.github.io/uievents/#idl-keyboardeventinit
type KeyboardEvent$Init = {
...UIEvent$Init,
/**
* Initializes the `key` attribute of the KeyboardEvent object to the unicode
* character string representing the meaning of a key after taking into
* account all keyboard modifiers (such as shift-state). This value is the
* final effective value of the key. If the key is not a printable character,
* then it should be one of the key values defined in [UIEvents-Key](https://www.w3.org/TR/uievents-key/).
*
* NOTE: not `null`, this results in `evt.key === 'null'`!
*/
key?: string | void,
/**
* Initializes the `code` attribute of the KeyboardEvent object to the unicode
* character string representing the key that was pressed, ignoring any
* keyboard modifications such as keyboard layout. This value should be one
* of the code values defined in [UIEvents-Code](https://www.w3.org/TR/uievents-code/).
*
* NOTE: not `null`, this results in `evt.code === 'null'`!
*/
code?: string | void,
/**
* Initializes the `location` attribute of the KeyboardEvent object to one of
* the following location numerical constants:
*
* DOM_KEY_LOCATION_STANDARD (numerical value 0)
* DOM_KEY_LOCATION_LEFT (numerical value 1)
* DOM_KEY_LOCATION_RIGHT (numerical value 2)
* DOM_KEY_LOCATION_NUMPAD (numerical value 3)
*/
location?: number,
/**
* Initializes the `ctrlKey` attribute of the KeyboardEvent object to true if
* the Control key modifier is to be considered active, false otherwise.
*/
ctrlKey?: boolean,
/**
* Initializes the `shiftKey` attribute of the KeyboardEvent object to true if
* the Shift key modifier is to be considered active, false otherwise.
*/
shiftKey?: boolean,
/**
* Initializes the `altKey` attribute of the KeyboardEvent object to true if
* the Alt (alternative) (or Option) key modifier is to be considered active,
* false otherwise.
*/
altKey?: boolean,
/**
* Initializes the `metaKey` attribute of the KeyboardEvent object to true if
* the Meta key modifier is to be considered active, false otherwise.
*/
metaKey?: boolean,
/**
* Initializes the `repeat` attribute of the KeyboardEvent object. This
* attribute should be set to true if the the current KeyboardEvent is
* considered part of a repeating sequence of similar events caused by the
* long depression of any single key, false otherwise.
*/
repeat?: boolean,
/**
* Initializes the `isComposing` attribute of the KeyboardEvent object. This
* attribute should be set to true if the event being constructed occurs as
* part of a composition sequence, false otherwise.
*/
isComposing?: boolean,
/**
* Initializes the `charCode` attribute of the KeyboardEvent to the Unicode
* code point for the event’s character.
*/
charCode?: number,
/**
* Initializes the `keyCode` attribute of the KeyboardEvent to the system-
* and implementation-dependent numerical code signifying the unmodified
* identifier associated with the key pressed.
*/
keyCode?: number,
/** Initializes the `which` attribute */
which?: number,
...
}
// https://w3c.github.io/uievents/#idl-keyboardevent
declare class KeyboardEvent extends UIEvent {
constructor(typeArg: string, init?: KeyboardEvent$Init): void;
/** `true` if the Alt (alternative) (or "Option") key modifier was active. */
+altKey: boolean;
/**
* Holds a string that identifies the physical key being pressed. The value
* is not affected by the current keyboard layout or modifier state, so a
* particular key will always return the same value.
*/
+code: string;
/** `true` if the Control (control) key modifier was active. */
+ctrlKey: boolean;
/**
* `true` if the key event occurs as part of a composition session, i.e.,
* after a `compositionstart` event and before the corresponding
* `compositionend` event.
*/
+isComposing: boolean;
/**
* Holds a [key attribute value](https://www.w3.org/TR/uievents-key/#key-attribute-value)
* corresponding to the key pressed. */
+key: string;
/** An indication of the logical location of the key on the device. */
+location: number;
/** `true` if the meta (Meta) key (or "Command") modifier was active. */
+metaKey: boolean;
/** `true` if the key has been pressed in a sustained manner. */
+repeat: boolean;
/** `true` if the shift (Shift) key modifier was active. */
+shiftKey: boolean;
/**
* Queries the state of a modifier using a key value.
*
* Returns `true` if it is a modifier key and the modifier is activated,
* `false` otherwise.
*/
getModifierState(keyArg?: string): boolean;
/**
* Holds a character value, for keypress events which generate character
* input. The value is the Unicode reference number (code point) of that
* character (e.g. event.charCode = event.key.charCodeAt(0) for printable
* characters). For keydown or keyup events, the value of charCode is 0.
*
* @deprecated You should use KeyboardEvent.key instead, if available.
*/
+charCode: number;
/**
* Holds a system- and implementation-dependent numerical code signifying
* the unmodified identifier associated with the key pressed. Unlike the
* `key` attribute, the set of possible values are not normatively defined.
* Typically, these value of the keyCode SHOULD represent the decimal
* codepoint in ASCII or Windows 1252, but MAY be drawn from a different
* appropriate character set. Implementations that are unable to identify
* a key use the key value 0.
*
* @deprecated You should use KeyboardEvent.key instead, if available.
*/
+keyCode: number;
/**
* Holds a system- and implementation-dependent numerical code signifying
* the unmodified identifier associated with the key pressed. In most cases,
* the value is identical to keyCode.
*
* @deprecated You should use KeyboardEvent.key instead, if available.
*/
+which: number;
}
type InputEvent$Init = {
...UIEvent$Init,
inputType?: string,
data?: string,
dataTransfer?: DataTransfer,
isComposing?: boolean,
ranges?: Array<any>, // TODO: StaticRange
...
}
declare class InputEvent extends UIEvent {
constructor(typeArg: string, inputEventInit: InputEvent$Init): void;
+data: string | null;
+dataTransfer: DataTransfer | null;
+inputType: string;
+isComposing: boolean;
getTargetRanges(): Array<any>; // TODO: StaticRange
}
declare class AnimationEvent extends Event {
animationName: string;
elapsedTime: number;
pseudoElement: string;
// deprecated
initAnimationEvent: (
type: 'animationstart' | 'animationend' | 'animationiteration',
canBubble: boolean,
cancelable: boolean,
animationName: string,
elapsedTime: number
) => void;
}
// https://html.spec.whatwg.org/multipage/webappapis.html#the-errorevent-interface
declare class ErrorEvent extends Event {
constructor(
type: string,
eventInitDict?: {
...Event$Init,
message?: string,
filename?: string,
lineno?: number,
colno?: number,
error?: any,
...
},
): void;
+message: string;
+filename: string;
+lineno: number;
+colno: number;
+error: any;
}
// https://html.spec.whatwg.org/multipage/web-messaging.html#broadcasting-to-other-browsing-contexts
declare class BroadcastChannel extends EventTarget {
name: string;
onmessage: ?(event: MessageEvent) => void;
onmessageerror: ?(event: MessageEvent) => void;
constructor(name: string): void;
postMessage(msg: mixed): void;
close(): void;
}
// https://www.w3.org/TR/touch-events/#idl-def-Touch
declare class Touch {
clientX: number,
clientY: number,
identifier: number,
pageX: number,
pageY: number,
screenX: number,
screenY: number,
target: EventTarget,
}
// https://www.w3.org/TR/touch-events/#idl-def-TouchList
// TouchList#item(index) will return null if n > #length. Should #item's
// return type just been Touch?
declare class TouchList {
@@iterator(): Iterator<Touch>;
length: number,
item(index: number): null | Touch,
[index: number]: Touch,
}
// https://www.w3.org/TR/touch-events/#touchevent-interface
declare class TouchEvent extends UIEvent {
altKey: boolean,
changedTouches: TouchList,
ctrlKey: boolean,
metaKey: boolean,
shiftKey: boolean,
targetTouches: TouchList,
touches: TouchList,
}
// https://www.w3.org/TR/webstorage/#the-storageevent-interface
declare class StorageEvent extends Event {
key: ?string,
oldValue: ?string,
newValue: ?string,
url: string,
storageArea: ?Storage,
}
type ClipboardItemData = string | Blob;
type PresentationStyle = "attachment" | "inline" | "unspecified";
type ClipboardItemOptions = {
presentationStyle?: PresentationStyle;
...
}
declare class ClipboardItem {
+types: $ReadOnlyArray<string>;
getType(type: string): Promise<Blob>;
constructor(items: {[type: string]: ClipboardItemData}, options?: ClipboardItemOptions): void;
}
// https://w3c.github.io/clipboard-apis/ as of 15 May 2018
type ClipboardEvent$Init = {
...Event$Init,
clipboardData: DataTransfer | null,
...
};
declare class ClipboardEvent extends Event {
constructor(type: ClipboardEventTypes, eventInit?: ClipboardEvent$Init): void;
+clipboardData: ?DataTransfer; // readonly
}
// https://www.w3.org/TR/2017/WD-css-transitions-1-20171130/#interface-transitionevent
type TransitionEvent$Init = {
...Event$Init,
propertyName: string,
elapsedTime: number,
pseudoElement: string,
...
};
declare class TransitionEvent extends Event {
constructor(type: TransitionEventTypes, eventInit?: TransitionEvent$Init): void;
+propertyName: string; // readonly
+elapsedTime: number; // readonly
+pseudoElement: string; // readonly
}
// https://www.w3.org/TR/html50/browsers.html#beforeunloadevent
declare class BeforeUnloadEvent extends Event {
returnValue: string,
}
// TODO: *Event
declare class Node extends EventTarget {
baseURI: ?string;
childNodes: NodeList<Node>;
firstChild: ?Node;
+isConnected: boolean;
lastChild: ?Node;
nextSibling: ?Node;
nodeName: string;
nodeType: number;
nodeValue: string;
ownerDocument: Document;
parentElement: ?Element;
parentNode: ?Node;
previousSibling: ?Node;
rootNode: Node;
textContent: string;
appendChild<T: Node>(newChild: T): T;
cloneNode(deep?: boolean): this;
compareDocumentPosition(other: Node): number;
contains(other: ?Node): boolean;
getRootNode(options?: { composed: boolean, ... }): Node;
hasChildNodes(): boolean;
insertBefore<T: Node>(newChild: T, refChild?: ?Node): T;
isDefaultNamespace(namespaceURI: string): boolean;
isEqualNode(arg: Node): boolean;
isSameNode(other: Node): boolean;
lookupNamespaceURI(prefix: string): string;
lookupPrefix(namespaceURI: string): string;
normalize(): void;
removeChild<T: Node>(oldChild: T): T;
replaceChild<T: Node>(newChild: Node, oldChild: T): T;
static ATTRIBUTE_NODE: number;
static CDATA_SECTION_NODE: number;
static COMMENT_NODE: number;
static DOCUMENT_FRAGMENT_NODE: number;
static DOCUMENT_NODE: number;
static DOCUMENT_POSITION_CONTAINED_BY: number;
static DOCUMENT_POSITION_CONTAINS: number;
static DOCUMENT_POSITION_DISCONNECTED: number;
static DOCUMENT_POSITION_FOLLOWING: number;
static DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC: number;
static DOCUMENT_POSITION_PRECEDING: number;
static DOCUMENT_TYPE_NODE: number;
static ELEMENT_NODE: number;
static ENTITY_NODE: number;
static ENTITY_REFERENCE_NODE: number;
static NOTATION_NODE: number;
static PROCESSING_INSTRUCTION_NODE: number;
static TEXT_NODE: number;
// Non-standard
innerText?: string;
outerText?: string;
}