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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
import { WindowGlobalBiDiModule } from "chrome://remote/content/webdriver-bidi/modules/WindowGlobalBiDiModule.sys.mjs";
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
LoadListener: "chrome://remote/content/shared/listeners/LoadListener.sys.mjs",
});
class BrowsingContextModule extends WindowGlobalBiDiModule {
#loadListener;
#subscribedEvents;
constructor(messageHandler) {
super(messageHandler);
// Setup the LoadListener as early as possible.
this.#loadListener = new lazy.LoadListener(this.messageHandler.window);
this.#loadListener.on("DOMContentLoaded", this.#onDOMContentLoaded);
this.#loadListener.on("load", this.#onLoad);
// Set of event names which have active subscriptions.
this.#subscribedEvents = new Set();
}
destroy() {
this.#loadListener.destroy();
this.#subscribedEvents = null;
}
#getNavigationInfo(data) {
return {
context: this.messageHandler.context,
// TODO: The navigation id should be a real id mapped to the navigation.
// See https://bugzilla.mozilla.org/show_bug.cgi?id=1763122
navigation: null,
timestamp: Date.now(),
url: data.target.URL,
};
}
#startListening() {
if (this.#subscribedEvents.size == 0) {
this.#loadListener.startListening();
}
}
#stopListening() {
if (this.#subscribedEvents.size == 0) {
this.#loadListener.stopListening();
}
}
#subscribeEvent(event) {
switch (event) {
case "browsingContext._documentInteractive":
this.#startListening();
this.#subscribedEvents.add("browsingContext._documentInteractive");
break;
case "browsingContext.domContentLoaded":
this.#startListening();
this.#subscribedEvents.add("browsingContext.domContentLoaded");
break;
case "browsingContext.load":
this.#startListening();
this.#subscribedEvents.add("browsingContext.load");
break;
}
}
#unsubscribeEvent(event) {
switch (event) {
case "browsingContext._documentInteractive":
this.#subscribedEvents.delete("browsingContext._documentInteractive");
break;
case "browsingContext.domContentLoaded":
this.#subscribedEvents.delete("browsingContext.domContentLoaded");
break;
case "browsingContext.load":
this.#subscribedEvents.delete("browsingContext.load");
break;
}
this.#stopListening();
}
#onDOMContentLoaded = (eventName, data) => {
if (this.#subscribedEvents.has("browsingContext._documentInteractive")) {
this.messageHandler.emitEvent("browsingContext._documentInteractive", {
baseURL: data.target.baseURI,
contextId: this.messageHandler.contextId,
documentURL: data.target.URL,
innerWindowId: this.messageHandler.innerWindowId,
readyState: data.target.readyState,
});
}
if (this.#subscribedEvents.has("browsingContext.domContentLoaded")) {
this.emitEvent(
"browsingContext.domContentLoaded",
this.#getNavigationInfo(data)
);
}
};
#onLoad = (eventName, data) => {
if (this.#subscribedEvents.has("browsingContext.load")) {
this.emitEvent("browsingContext.load", this.#getNavigationInfo(data));
}
};
/**
* Internal commands
*/
_applySessionData(params) {
// TODO: Bug 1775231. Move this logic to a shared module or an abstract
// class.
const { category } = params;
if (category === "event") {
const filteredSessionData = params.sessionData.filter(item =>
this.messageHandler.matchesContext(item.contextDescriptor)
);
for (const event of this.#subscribedEvents.values()) {
const hasSessionItem = filteredSessionData.some(
item => item.value === event
);
// If there are no session items for this context, we should unsubscribe from the event.
if (!hasSessionItem) {
this.#unsubscribeEvent(event);
}
}
// Subscribe to all events, which have an item in SessionData.
for (const { value } of filteredSessionData) {
this.#subscribeEvent(value);
}
}
}
_getBaseURL() {
return this.messageHandler.window.document.baseURI;
}
_getScreenshotRect() {
const win = this.messageHandler.window;
return new DOMRect(
win.pageXOffset,
win.pageYOffset,
win.innerWidth,
win.innerHeight
);
}
}
export const browsingContext = BrowsingContextModule;
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