gecko-dev/mobile/android/chrome/geckoview/GeckoViewNavigationContent.js

/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* 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/. */

ChromeUtils.import("resource://gre/modules/GeckoViewContentModule.jsm");
ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");

XPCOMUtils.defineLazyModuleGetters(this, {
  ErrorPageEventHandler: "chrome://geckoview/content/ErrorPageEventHandler.js",
  LoadURIDelegate: "resource://gre/modules/LoadURIDelegate.jsm",
});

// Implements nsILoadURIDelegate.
class GeckoViewNavigationContent extends GeckoViewContentModule {
  onInit() {
    docShell.loadURIDelegate = this;
  }

  // nsILoadURIDelegate.
  loadURI(aUri, aWhere, aFlags, aTriggeringPrincipal) {
    debug `loadURI: uri=${aUri && aUri.spec}
                    where=${aWhere} flags=${aFlags}`;

    if (!this.enabled) {
      return Promise.resolve(false);
    }

    // TODO: Remove this when we have a sensible error API.
    if (aUri && aUri.displaySpec.startsWith("about:certerror")) {
      addEventListener("click", ErrorPageEventHandler, true);
    }

    return LoadURIDelegate.load(content, this.eventDispatcher,
                                aUri, aWhere, aFlags);
  }

  // nsILoadURIDelegate.
  handleLoadError(aUri, aError, aErrorModule) {
    debug `handleLoadError: uri=${aUri && aUri.spec}
                             uri2=${aUri && aUri.displaySpec}
                             error=${aError}`;

    if (!this.enabled) {
      Components.returnCode = Cr.NS_ERROR_ABORT;
      return null;
    }

    return LoadURIDelegate.handleLoadError(content, this.eventDispatcher,
                                           aUri, aError, aErrorModule);
  }
}

let {debug, warn} = GeckoViewNavigationContent.initLogging("GeckoViewNavigation");
let module = GeckoViewNavigationContent.create(this);