browser_pdfjs_disabled_handle_internally.js

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/* Any copyright is dedicated to the Public Domain.

   http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

const RELATIVE_DIR = "toolkit/components/pdfjs/test/";

const TESTROOT = "https://example.com/browser/" + RELATIVE_DIR;

const PDF_URL = TESTROOT + "file_pdfjs_test.pdf";

add_setup(async function () {

  const saveDir = createTemporarySaveDirectory("handleinternally");

  // Opening in Firefox is the default action for PDFs, and the built-in viewer

  // restores it whenever it runs, so it is still the stored action once the

  // viewer has been disabled.

  const oldAction = changeMimeHandler(

    Ci.nsIHandlerInfo.handleInternally,

    false

);

  await SpecialPowers.pushPrefEnv({

    set: [

      ["pdfjs.disabled", true],

      ["browser.download.always_ask_before_handling_new_types", false],

      ["browser.download.folderList", 2],

      ["browser.download.dir", saveDir.path],

],

});

  registerCleanupFunction(async function () {

    changeMimeHandler(oldAction[0], oldAction[1]);

    await cleanupDownloads();

    saveDir.remove(true);

});

});

async function checkPdfIsNotHandledInternally(url) {

  const tab = await BrowserTestUtils.openNewForegroundTab(

    gBrowser,

    "about:blank"

);

  const dialogPromise = BrowserTestUtils.domWindowOpenedAndLoaded();

  BrowserTestUtils.startLoadingURIString(tab.linkedBrowser, url);

  const dialogWindow = await dialogPromise;

is(

    dialogWindow.location.href,

    "chrome://mozapps/content/downloads/unknownContentType.xhtml",

    "The dialog to open or save the PDF must be displayed"

);

  const dialogClosed = BrowserTestUtils.domWindowClosed(dialogWindow);

  dialogWindow.document.querySelector("#unknownContentType").cancelDialog();

  await dialogClosed;

  BrowserTestUtils.removeTab(tab);

add_task(async function test_remote_pdf() {

  await checkPdfIsNotHandledInternally(PDF_URL);

});

add_task(async function test_local_pdf() {

  // A local file is launched from where it is instead of being downloaded, and

  // launching it fails when the stored action has no application to launch.

  const pdf = getChromeDir(getResolvedURI(gTestPath));

  pdf.append("file_pdfjs_test.pdf");

  await checkPdfIsNotHandledInternally(Services.io.newFileURI(pdf).spec);

});