tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

AboutNewTabChild.sys.mjs (3456B)

      1 /* vim: set ts=2 sw=2 sts=2 et tw=80: */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 import { XPCOMUtils } from "resource://gre/modules/XPCOMUtils.sys.mjs";
      7 import { AppConstants } from "resource://gre/modules/AppConstants.sys.mjs";
      8 import { PrivateBrowsingUtils } from "resource://gre/modules/PrivateBrowsingUtils.sys.mjs";
      9 import { RemotePageChild } from "resource://gre/actors/RemotePageChild.sys.mjs";
     10 
     11 const lazy = {};
     12 
     13 ChromeUtils.defineESModuleGetters(lazy, {
     14  NimbusFeatures: "resource://nimbus/ExperimentAPI.sys.mjs",
     15 });
     16 
     17 XPCOMUtils.defineLazyPreferenceGetter(
     18  lazy,
     19  "ACTIVITY_STREAM_DEBUG",
     20  "browser.newtabpage.activity-stream.debug",
     21  false
     22 );
     23 
     24 let gNextPortID = 0;
     25 
     26 export class AboutNewTabChild extends RemotePageChild {
     27  handleEvent(event) {
     28    if (event.type == "DOMDocElementInserted") {
     29      let portID = Services.appinfo.processID + ":" + ++gNextPortID;
     30 
     31      this.sendAsyncMessage("Init", {
     32        portID,
     33        url: this.contentWindow.document.documentURI.replace(/[\#|\?].*$/, ""),
     34      });
     35    } else if (event.type == "load") {
     36      this.sendAsyncMessage("Load");
     37    } else if (event.type == "DOMContentLoaded") {
     38      if (!this.contentWindow.document.body.firstElementChild) {
     39        return; // about:newtab is a blank page
     40      }
     41 
     42      const debug = !AppConstants.RELEASE_OR_BETA && lazy.ACTIVITY_STREAM_DEBUG;
     43      const debugString = debug ? "-dev" : "";
     44 
     45      // This list must match any similar ones in render-activity-stream-html.js.
     46      const scripts = [
     47        "chrome://browser/content/contentTheme.js",
     48        `chrome://global/content/vendor/react${debugString}.js`,
     49        `chrome://global/content/vendor/react-dom${debugString}.js`,
     50        "chrome://global/content/vendor/prop-types.js",
     51        "chrome://global/content/vendor/react-transition-group.js",
     52        "chrome://global/content/vendor/redux.js",
     53        "chrome://global/content/vendor/react-redux.js",
     54        "resource://newtab/data/content/activity-stream.bundle.js",
     55        "resource://newtab/data/content/newtab-render.js",
     56      ];
     57 
     58      for (let script of scripts) {
     59        Services.scriptloader.loadSubScriptWithOptions(script, {
     60          target: this.contentWindow,
     61          ignoreCache: true,
     62        });
     63      }
     64    } else if (event.type == "unload") {
     65      try {
     66        this.sendAsyncMessage("Unload");
     67      } catch (e) {
     68        // If the tab has been closed the frame message manager has already been
     69        // destroyed
     70      }
     71    } else if (event.type == "pageshow" || event.type == "visibilitychange") {
     72      // Don't show the notification in non-permanent private windows
     73      // since it is expected to have very little opt-in here.
     74      let contentWindowPrivate = PrivateBrowsingUtils.isContentWindowPrivate(
     75        this.contentWindow
     76      );
     77      if (
     78        this.document.visibilityState == "visible" &&
     79        (!contentWindowPrivate ||
     80          (contentWindowPrivate &&
     81            PrivateBrowsingUtils.permanentPrivateBrowsing))
     82      ) {
     83        this.sendAsyncMessage("AboutNewTabVisible");
     84 
     85        // Note: newtab feature info is currently being loaded in PrefsFeed.sys.mjs,
     86        // But we're recording exposure events here.
     87        lazy.NimbusFeatures.newtab.recordExposureEvent({ once: true });
     88      }
     89    }
     90  }
     91 }