mirror of
https://github.com/denoland/deno.git
synced 2024-12-24 16:19:12 -05:00
Support window.onload (#2643)
This commit is contained in:
parent
bd6ebb32df
commit
9c45499864
14 changed files with 162 additions and 88 deletions
|
@ -14,6 +14,7 @@
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"@typescript-eslint/array-type": ["error", "array-simple"],
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"@typescript-eslint/explicit-member-accessibility": ["off"],
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"@typescript-eslint/no-non-null-assertion": ["off"],
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"@typescript-eslint/no-use-before-define": ["off"],
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"@typescript-eslint/no-parameter-properties": ["off"],
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"@typescript-eslint/no-unused-vars": [
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"error",
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@ -314,6 +314,7 @@ fn run_script(flags: DenoFlags, argv: Vec<String>) {
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worker
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.execute_mod_async(&main_module, false)
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.and_then(move |()| {
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js_check(worker.execute("window.dispatchEvent(new Event('load'))"));
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worker.then(|result| {
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js_check(result);
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Ok(())
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@ -71,11 +71,16 @@ export enum NodeType {
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DOCUMENT_FRAGMENT_NODE = 11
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}
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export const eventTargetHost: unique symbol = Symbol();
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export const eventTargetListeners: unique symbol = Symbol();
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export const eventTargetMode: unique symbol = Symbol();
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export const eventTargetNodeType: unique symbol = Symbol();
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export interface EventTarget {
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host: EventTarget | null;
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listeners: { [type in string]: EventListener[] };
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mode: string;
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nodeType: NodeType;
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[eventTargetHost]: EventTarget | null;
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[eventTargetListeners]: { [type in string]: EventListener[] };
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[eventTargetMode]: string;
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[eventTargetNodeType]: NodeType;
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addEventListener(
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type: string,
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callback: (event: Event) => void | null,
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@ -9,16 +9,18 @@ export function isNode(nodeImpl: domTypes.EventTarget | null): boolean {
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export function isShadowRoot(nodeImpl: domTypes.EventTarget | null): boolean {
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return Boolean(
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nodeImpl &&
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nodeImpl.nodeType === domTypes.NodeType.DOCUMENT_FRAGMENT_NODE &&
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"host" in nodeImpl
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nodeImpl[domTypes.eventTargetNodeType] ===
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domTypes.NodeType.DOCUMENT_FRAGMENT_NODE &&
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nodeImpl[domTypes.eventTargetHost] != null
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);
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}
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export function isSlotable(nodeImpl: domTypes.EventTarget | null): boolean {
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return Boolean(
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nodeImpl &&
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(nodeImpl.nodeType === domTypes.NodeType.ELEMENT_NODE ||
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nodeImpl.nodeType === domTypes.NodeType.TEXT_NODE)
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(nodeImpl[domTypes.eventTargetNodeType] ===
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domTypes.NodeType.ELEMENT_NODE ||
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nodeImpl[domTypes.eventTargetNodeType] === domTypes.NodeType.TEXT_NODE)
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);
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}
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@ -36,7 +38,7 @@ export function isShadowInclusiveAncestor(
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}
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if (isShadowRoot(node)) {
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node = node && node.host;
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node = node && node[domTypes.eventTargetHost];
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} else {
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node = null; // domSymbolTree.parent(node);
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}
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@ -77,7 +79,7 @@ export function retarget(
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return a;
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}
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a = aRoot.host;
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a = aRoot[domTypes.eventTargetHost];
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}
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}
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}
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@ -98,13 +98,19 @@ export class EventListener implements domTypes.EventListener {
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}
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}
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export const eventTargetAssignedSlot: unique symbol = Symbol();
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export const eventTargetHasActivationBehavior: unique symbol = Symbol();
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export class EventTarget implements domTypes.EventTarget {
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public host: domTypes.EventTarget | null = null;
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public listeners: { [type in string]: domTypes.EventListener[] } = {};
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public mode = "";
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public nodeType: domTypes.NodeType = domTypes.NodeType.DOCUMENT_FRAGMENT_NODE;
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private _assignedSlot = false;
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private _hasActivationBehavior = false;
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public [domTypes.eventTargetHost]: domTypes.EventTarget | null = null;
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public [domTypes.eventTargetListeners]: {
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[type in string]: domTypes.EventListener[]
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} = {};
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public [domTypes.eventTargetMode] = "";
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public [domTypes.eventTargetNodeType]: domTypes.NodeType =
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domTypes.NodeType.DOCUMENT_FRAGMENT_NODE;
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private [eventTargetAssignedSlot] = false;
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private [eventTargetHasActivationBehavior] = false;
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public addEventListener(
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type: string,
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@ -112,7 +118,7 @@ export class EventTarget implements domTypes.EventTarget {
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options?: domTypes.AddEventListenerOptions | boolean
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): void {
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requiredArguments("EventTarget.addEventListener", arguments.length, 2);
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const normalizedOptions: domTypes.AddEventListenerOptions = this._normalizeAddEventHandlerOptions(
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const normalizedOptions: domTypes.AddEventListenerOptions = eventTargetHelpers.normalizeAddEventHandlerOptions(
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options
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);
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@ -120,12 +126,14 @@ export class EventTarget implements domTypes.EventTarget {
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return;
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}
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if (!hasOwnProperty(this.listeners, type)) {
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this.listeners[type] = [];
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const listeners = this[domTypes.eventTargetListeners];
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if (!hasOwnProperty(listeners, type)) {
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listeners[type] = [];
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}
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for (let i = 0; i < this.listeners[type].length; ++i) {
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const listener = this.listeners[type][i];
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for (let i = 0; i < listeners[type].length; ++i) {
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const listener = listeners[type][i];
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if (
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((typeof listener.options === "boolean" &&
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listener.options === normalizedOptions.capture) ||
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@ -137,7 +145,7 @@ export class EventTarget implements domTypes.EventTarget {
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}
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}
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this.listeners[type].push(new EventListener(callback, normalizedOptions));
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listeners[type].push(new EventListener(callback, normalizedOptions));
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}
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public removeEventListener(
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@ -146,13 +154,14 @@ export class EventTarget implements domTypes.EventTarget {
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options?: domTypes.EventListenerOptions | boolean
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): void {
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requiredArguments("EventTarget.removeEventListener", arguments.length, 2);
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if (hasOwnProperty(this.listeners, type) && callback !== null) {
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this.listeners[type] = this.listeners[type].filter(
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const listeners = this[domTypes.eventTargetListeners];
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if (hasOwnProperty(listeners, type) && callback !== null) {
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listeners[type] = listeners[type].filter(
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(listener): boolean => listener.callback !== callback
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);
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}
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const normalizedOptions: domTypes.EventListenerOptions = this._normalizeEventHandlerOptions(
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const normalizedOptions: domTypes.EventListenerOptions = eventTargetHelpers.normalizeEventHandlerOptions(
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options
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);
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@ -161,12 +170,12 @@ export class EventTarget implements domTypes.EventTarget {
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return;
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}
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if (!this.listeners[type]) {
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if (!listeners[type]) {
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return;
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}
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for (let i = 0; i < this.listeners[type].length; ++i) {
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const listener = this.listeners[type][i];
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for (let i = 0; i < listeners[type].length; ++i) {
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const listener = listeners[type][i];
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if (
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((typeof listener.options === "boolean" &&
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@ -175,7 +184,7 @@ export class EventTarget implements domTypes.EventTarget {
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listener.options.capture === normalizedOptions.capture)) &&
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listener.callback === callback
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) {
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this.listeners[type].splice(i, 1);
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listeners[type].splice(i, 1);
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break;
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}
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}
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@ -183,7 +192,8 @@ export class EventTarget implements domTypes.EventTarget {
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public dispatchEvent(event: domTypes.Event): boolean {
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requiredArguments("EventTarget.dispatchEvent", arguments.length, 1);
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if (!hasOwnProperty(this.listeners, event.type)) {
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const listeners = this[domTypes.eventTargetListeners];
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if (!hasOwnProperty(listeners, event.type)) {
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return true;
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}
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@ -201,15 +211,21 @@ export class EventTarget implements domTypes.EventTarget {
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);
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}
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return this._dispatch(event);
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return eventTargetHelpers.dispatch(this, event);
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}
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get [Symbol.toStringTag](): string {
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return "EventTarget";
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}
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}
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const eventTargetHelpers = {
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// https://dom.spec.whatwg.org/#concept-event-dispatch
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_dispatch(
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dispatch(
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targetImpl: EventTarget,
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eventImpl: domTypes.Event,
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targetOverride?: domTypes.EventTarget
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): boolean {
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let targetImpl = this;
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let clearTargets = false;
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let activationTarget = null;
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@ -224,7 +240,7 @@ export class EventTarget implements domTypes.EventTarget {
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) {
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const touchTargets: domTypes.EventTarget[] = [];
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this._appendToEventPath(
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eventTargetHelpers.appendToEventPath(
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eventImpl,
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targetImpl,
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targetOverride,
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@ -235,13 +251,15 @@ export class EventTarget implements domTypes.EventTarget {
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const isActivationEvent = eventImpl.type === "click";
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if (isActivationEvent && targetImpl._hasActivationBehavior) {
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if (isActivationEvent && targetImpl[eventTargetHasActivationBehavior]) {
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activationTarget = targetImpl;
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}
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let slotInClosedTree = false;
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let slotable =
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isSlotable(targetImpl) && targetImpl._assignedSlot ? targetImpl : null;
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isSlotable(targetImpl) && targetImpl[eventTargetAssignedSlot]
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? targetImpl
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: null;
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let parent = getEventTargetParent(targetImpl, eventImpl);
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// Populate event path
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@ -254,7 +272,7 @@ export class EventTarget implements domTypes.EventTarget {
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if (
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isShadowRoot(parentRoot) &&
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parentRoot &&
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parentRoot.mode === "closed"
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parentRoot[domTypes.eventTargetMode] === "closed"
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) {
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slotInClosedTree = true;
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}
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@ -266,7 +284,7 @@ export class EventTarget implements domTypes.EventTarget {
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isNode(parent) &&
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isShadowInclusiveAncestor(getRoot(targetImpl), parent)
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) {
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this._appendToEventPath(
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eventTargetHelpers.appendToEventPath(
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eventImpl,
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parent,
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null,
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@ -282,12 +300,12 @@ export class EventTarget implements domTypes.EventTarget {
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if (
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isActivationEvent &&
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activationTarget === null &&
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targetImpl._hasActivationBehavior
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targetImpl[eventTargetHasActivationBehavior]
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) {
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activationTarget = targetImpl;
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}
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this._appendToEventPath(
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eventTargetHelpers.appendToEventPath(
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eventImpl,
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parent,
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targetImpl,
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@ -328,7 +346,7 @@ export class EventTarget implements domTypes.EventTarget {
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const tuple = eventImpl.path[i];
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if (tuple.target === null) {
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this._invokeEventListeners(tuple, eventImpl);
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eventTargetHelpers.invokeEventListeners(targetImpl, tuple, eventImpl);
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}
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}
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@ -346,7 +364,7 @@ export class EventTarget implements domTypes.EventTarget {
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eventImpl.bubbles) ||
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eventImpl.eventPhase === domTypes.EventPhase.AT_TARGET
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) {
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this._invokeEventListeners(tuple, eventImpl);
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eventTargetHelpers.invokeEventListeners(targetImpl, tuple, eventImpl);
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}
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}
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}
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@ -372,10 +390,11 @@ export class EventTarget implements domTypes.EventTarget {
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// }
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return !eventImpl.defaultPrevented;
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}
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},
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// https://dom.spec.whatwg.org/#concept-event-listener-invoke
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_invokeEventListeners(
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invokeEventListeners(
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targetImpl: EventTarget,
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tuple: domTypes.EventPath,
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eventImpl: domTypes.Event
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): void {
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@ -396,11 +415,16 @@ export class EventTarget implements domTypes.EventTarget {
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eventImpl.currentTarget = tuple.item;
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this._innerInvokeEventListeners(eventImpl, tuple.item.listeners);
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}
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eventTargetHelpers.innerInvokeEventListeners(
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targetImpl,
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eventImpl,
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tuple.item[domTypes.eventTargetListeners]
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);
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},
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// https://dom.spec.whatwg.org/#concept-event-listener-inner-invoke
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_innerInvokeEventListeners(
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innerInvokeEventListeners(
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targetImpl: EventTarget,
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eventImpl: domTypes.Event,
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targetListeners: { [type in string]: domTypes.EventListener[] }
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): boolean {
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@ -471,9 +495,9 @@ export class EventTarget implements domTypes.EventTarget {
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}
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return found;
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}
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},
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_normalizeAddEventHandlerOptions(
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normalizeAddEventHandlerOptions(
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options: boolean | domTypes.AddEventListenerOptions | undefined
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): domTypes.AddEventListenerOptions {
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if (typeof options === "boolean" || typeof options === "undefined") {
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@ -487,9 +511,9 @@ export class EventTarget implements domTypes.EventTarget {
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} else {
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return options;
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}
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}
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},
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_normalizeEventHandlerOptions(
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normalizeEventHandlerOptions(
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options: boolean | domTypes.EventListenerOptions | undefined
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): domTypes.EventListenerOptions {
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if (typeof options === "boolean" || typeof options === "undefined") {
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@ -501,10 +525,10 @@ export class EventTarget implements domTypes.EventTarget {
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} else {
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return options;
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}
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}
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},
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// https://dom.spec.whatwg.org/#concept-event-path-append
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_appendToEventPath(
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appendToEventPath(
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eventImpl: domTypes.Event,
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target: domTypes.EventTarget,
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targetOverride: domTypes.EventTarget | null,
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@ -513,7 +537,8 @@ export class EventTarget implements domTypes.EventTarget {
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slotInClosedTree: boolean
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): void {
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const itemInShadowTree = isNode(target) && isShadowRoot(getRoot(target));
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const rootOfClosedTree = isShadowRoot(target) && target.mode === "closed";
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const rootOfClosedTree =
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isShadowRoot(target) && target[domTypes.eventTargetMode] === "closed";
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eventImpl.path.push({
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item: target,
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@ -525,31 +550,11 @@ export class EventTarget implements domTypes.EventTarget {
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slotInClosedTree
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});
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}
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get [Symbol.toStringTag](): string {
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return "EventTarget";
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}
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}
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};
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/** Built-in objects providing `get` methods for our
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* interceptable JavaScript operations.
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*/
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Reflect.defineProperty(EventTarget.prototype, "host", {
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enumerable: true,
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writable: true
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});
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Reflect.defineProperty(EventTarget.prototype, "listeners", {
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enumerable: true,
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writable: true
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});
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Reflect.defineProperty(EventTarget.prototype, "mode", {
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enumerable: true,
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writable: true
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});
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Reflect.defineProperty(EventTarget.prototype, "nodeType", {
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enumerable: true,
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writable: true
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});
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Reflect.defineProperty(EventTarget.prototype, "addEventListener", {
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enumerable: true
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});
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|
|
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@ -69,6 +69,7 @@ window.console = console;
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window.setTimeout = timers.setTimeout;
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window.setInterval = timers.setInterval;
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window.location = (undefined as unknown) as domTypes.Location;
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window.onload = undefined as undefined | Function;
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// The following Crypto interface implementation is not up to par with the
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// standard https://www.w3.org/TR/WebCryptoAPI/#crypto-interface as it does not
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// yet incorporate the SubtleCrypto interface as its "subtle" property.
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|
@ -135,6 +136,28 @@ window.postMessage = workers.postMessage;
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window.Worker = workers.WorkerImpl;
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export type Worker = workers.Worker;
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window[domTypes.eventTargetHost] = null;
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window[domTypes.eventTargetListeners] = {};
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window[domTypes.eventTargetMode] = "";
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window[domTypes.eventTargetNodeType] = 0;
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window[eventTarget.eventTargetAssignedSlot] = false;
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window[eventTarget.eventTargetHasActivationBehavior] = false;
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window.addEventListener = eventTarget.EventTarget.prototype.addEventListener;
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window.dispatchEvent = eventTarget.EventTarget.prototype.dispatchEvent;
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window.removeEventListener =
|
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eventTarget.EventTarget.prototype.removeEventListener;
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|
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// Registers the handler for window.onload function.
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window.addEventListener(
|
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"load",
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(e: domTypes.Event): void => {
|
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const onload = window.onload;
|
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if (typeof onload === "function") {
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onload(e);
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}
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}
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);
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|
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// below are interfaces that are available in TypeScript but
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// have different signatures
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export interface ImportMeta {
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|
|
|
@ -1,5 +1,4 @@
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// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
|
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|
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// (0, eval) is indirect eval.
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// See the links below for details:
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// - https://stackoverflow.com/a/14120023
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|
|
7
tests/034_onload.out
Normal file
7
tests/034_onload.out
Normal file
|
@ -0,0 +1,7 @@
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log from nest_imported script
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log from imported script
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log from main
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got load event in onload function
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got load event in event handler (nest_imported)
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got load event in event handler (imported)
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got load event in event handler (main)
|
2
tests/034_onload.test
Normal file
2
tests/034_onload.test
Normal file
|
@ -0,0 +1,2 @@
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args: run --reload tests/034_onload/main.ts
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output: tests/034_onload.out
|
8
tests/034_onload/imported.ts
Normal file
8
tests/034_onload/imported.ts
Normal file
|
@ -0,0 +1,8 @@
|
|||
import "./nest_imported.ts";
|
||||
window.addEventListener(
|
||||
"load",
|
||||
(e: Event): void => {
|
||||
console.log(`got ${e.type} event in event handler (imported)`);
|
||||
}
|
||||
);
|
||||
console.log("log from imported script");
|
14
tests/034_onload/main.ts
Normal file
14
tests/034_onload/main.ts
Normal file
|
@ -0,0 +1,14 @@
|
|||
import "./imported.ts";
|
||||
|
||||
window.addEventListener(
|
||||
"load",
|
||||
(e: Event): void => {
|
||||
console.log(`got ${e.type} event in event handler (main)`);
|
||||
}
|
||||
);
|
||||
|
||||
window.onload = (e: Event): void => {
|
||||
console.log(`got ${e.type} event in onload function`);
|
||||
};
|
||||
|
||||
console.log("log from main");
|
7
tests/034_onload/nest_imported.ts
Normal file
7
tests/034_onload/nest_imported.ts
Normal file
|
@ -0,0 +1,7 @@
|
|||
window.addEventListener(
|
||||
"load",
|
||||
(e: Event): void => {
|
||||
console.log(`got ${e.type} event in event handler (nest_imported)`);
|
||||
}
|
||||
);
|
||||
console.log("log from nest_imported script");
|
1
tests/034_onload_imported.ts
Normal file
1
tests/034_onload_imported.ts
Normal file
|
@ -0,0 +1 @@
|
|||
console.log("from imported script");
|
|
@ -425,7 +425,7 @@ $ deno run --allow-net=deno.land allow-net-whitelist-example.ts
|
|||
Example:
|
||||
|
||||
```ts
|
||||
async function main() {
|
||||
window.onload = async function() {
|
||||
// create subprocess
|
||||
const p = Deno.run({
|
||||
args: ["echo", "hello"]
|
||||
|
@ -433,9 +433,7 @@ async function main() {
|
|||
|
||||
// await its completion
|
||||
await p.status();
|
||||
}
|
||||
|
||||
main();
|
||||
};
|
||||
```
|
||||
|
||||
Run it:
|
||||
|
@ -445,12 +443,17 @@ $ deno run --allow-run ./subprocess_simple.ts
|
|||
hello
|
||||
```
|
||||
|
||||
Here a function is assigned to `window.onload`. This function is called after
|
||||
the main script is loaded. This is the same as
|
||||
[onload](https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onload)
|
||||
of the browsers, and it can be used as the main entrypoint.
|
||||
|
||||
By default when you use `Deno.run()` subprocess inherits `stdin`, `stdout` and
|
||||
`stderr` of parent process. If you want to communicate with started subprocess
|
||||
you can use `"piped"` option.
|
||||
|
||||
```ts
|
||||
async function main() {
|
||||
window.onload = async function() {
|
||||
const decoder = new TextDecoder();
|
||||
|
||||
const fileNames = Deno.args.slice(1);
|
||||
|
@ -479,9 +482,7 @@ async function main() {
|
|||
}
|
||||
|
||||
Deno.exit(code);
|
||||
}
|
||||
|
||||
main();
|
||||
};
|
||||
```
|
||||
|
||||
When you run it:
|
||||
|
@ -833,14 +834,12 @@ Example:
|
|||
|
||||
import { serve } from "http/server.ts";
|
||||
|
||||
async function main() {
|
||||
window.onload = async function() {
|
||||
const body = new TextEncoder().encode("Hello World\n");
|
||||
for await (const req of serve(":8000")) {
|
||||
req.respond({ body });
|
||||
}
|
||||
}
|
||||
|
||||
main();
|
||||
};
|
||||
```
|
||||
|
||||
```shell
|
||||
|
|
Loading…
Reference in a new issue