toolkit/components/pdfjs/test/browser_pdfjs_caret_browsing_mode.js

   1 /* Any copyright is dedicated to the Public Domain.
   2  * http://creativecommons.org/publicdomain/zero/1.0/ */
   3
   4 const RELATIVE_DIR = "toolkit/components/pdfjs/test/";
   5 const TESTROOT = "https://example.com/browser/" + RELATIVE_DIR;
   6 const pdfUrl = TESTROOT + "file_pdfjs_test.pdf";
   7 const caretBrowsingModePref = "accessibility.browsewithcaret";
   8
   9 // Test telemetry.
  10 add_task(async function test() {
  11   let mimeService = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
  12   let handlerInfo = mimeService.getFromTypeAndExtension(
  13     "application/pdf",
  14     "pdf"
  15   );
  16
  17   // Make sure pdf.js is the default handler.
  18   is(
  19     handlerInfo.alwaysAskBeforeHandling,
  20     false,
  21     "pdf handler defaults to always-ask is false"
  22   );
  23   is(
  24     handlerInfo.preferredAction,
  25     Ci.nsIHandlerInfo.handleInternally,
  26     "pdf handler defaults to internal"
  27   );
  28
  29   info("Pref action: " + handlerInfo.preferredAction);
  30
  31   await BrowserTestUtils.withNewTab(
  32     { gBrowser, url: "about:blank" },
  33     async function test_caret_browsing_mode(browser) {
  34       await waitForPdfJS(browser, pdfUrl);
  35
  36       let promise = BrowserTestUtils.waitForContentEvent(
  37         browser,
  38         "updatedPreference",
  39         false,
  40         null,
  41         true
  42       );
  43       await SpecialPowers.pushPrefEnv({
  44         set: [[caretBrowsingModePref, true]],
  45       });
  46       await promise;
  47       await TestUtils.waitForTick();
  48
  49       await SpecialPowers.spawn(browser, [], async function () {
  50         const viewer = content.wrappedJSObject.PDFViewerApplication;
  51         Assert.ok(
  52           viewer.supportsCaretBrowsingMode,
  53           "Caret browsing mode is supported"
  54         );
  55       });
  56
  57       promise = BrowserTestUtils.waitForContentEvent(
  58         browser,
  59         "updatedPreference",
  60         false,
  61         null,
  62         true
  63       );
  64       await SpecialPowers.popPrefEnv();
  65       await promise;
  66       await TestUtils.waitForTick();
  67
  68       await SpecialPowers.spawn(browser, [], async function () {
  69         const viewer = content.wrappedJSObject.PDFViewerApplication;
  70         Assert.ok(
  71           !viewer.supportsCaretBrowsingMode,
  72           "Caret browsing mode isn't supported"
  73         );
  74       });
  75
  76       await waitForPdfJSClose(browser);
  77     }
  78   );
  79 });