107 lines
3.5 KiB
JavaScript
107 lines
3.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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import { GeckoViewUtils } from "resource://gre/modules/GeckoViewUtils.sys.mjs";
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import { GeckoViewActorParent } from "resource://gre/modules/GeckoViewActorParent.sys.mjs";
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const lazy = {};
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ChromeUtils.defineESModuleGetters(lazy, {
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SessionHistory: "resource://gre/modules/sessionstore/SessionHistory.sys.mjs",
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SessionStoreHelper:
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"resource://gre/modules/sessionstore/SessionStoreHelper.sys.mjs",
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});
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const { debug, warn } = GeckoViewUtils.initLogging("GeckoViewContentParent");
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export class GeckoViewContentParent extends GeckoViewActorParent {
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didDestroy() {
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this._didDestroy = true;
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}
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async collectState() {
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return this.sendQuery("CollectSessionState");
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}
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async containsFormData() {
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return this.sendQuery("ContainsFormData");
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}
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restoreState({ history, switchId, formdata, scrolldata }) {
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if (Services.appinfo.sessionHistoryInParent) {
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const { browsingContext } = this.browser;
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lazy.SessionHistory.restoreFromParent(
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browsingContext.sessionHistory,
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history
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);
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// TODO Bug 1648158 this should include scroll, form history, etc
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return SessionStoreUtils.initializeRestore(
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browsingContext,
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lazy.SessionStoreHelper.buildRestoreData(formdata, scrolldata)
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);
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}
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// Restoring is made of two parts. First we need to restore the history
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// of the tab and navigating to the current page, after the page
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// navigates to the current page we need to restore the state of the
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// page (scroll position, form data, etc).
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//
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// We can't do everything in one step inside the child actor because
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// the actor is recreated when navigating, so we need to keep the state
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// on the parent side until we navigate.
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this.sendAsyncMessage("RestoreHistoryAndNavigate", {
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history,
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switchId,
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});
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if (!formdata && !scrolldata) {
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return null;
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}
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const progressFilter = Cc[
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"@mozilla.org/appshell/component/browser-status-filter;1"
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].createInstance(Ci.nsIWebProgress);
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const { browser } = this;
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const progressListener = {
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QueryInterface: ChromeUtils.generateQI(["nsIWebProgressListener"]),
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onLocationChange(aWebProgress) {
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if (!aWebProgress.isTopLevel) {
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return;
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}
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// The actor might get recreated between navigations so we need to
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// query it again for the up-to-date instance.
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browser.browsingContext.currentWindowGlobal
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.getActor("GeckoViewContent")
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.sendAsyncMessage("RestoreSessionState", { formdata, scrolldata });
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progressFilter.removeProgressListener(this);
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browser.removeProgressListener(progressFilter);
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},
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};
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const flags = Ci.nsIWebProgress.NOTIFY_LOCATION;
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progressFilter.addProgressListener(progressListener, flags);
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browser.addProgressListener(progressFilter, flags);
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return null;
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}
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// This is a copy of browser/actors/DOMFullscreenParent.sys.mjs
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hasBeenDestroyed() {
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if (this._didDestroy) {
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return true;
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}
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// The 'didDestroy' callback is not always getting called.
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// So we can't rely on it here. Instead, we will try to access
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// the browsing context to judge wether the actor has
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// been destroyed or not.
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try {
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return !this.browsingContext;
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} catch {
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return true;
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}
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}
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}
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