Bug 1790576 - In the pdf viewer, allow to switch to presentation mode in using... (ffb67e7b) · Commits · Dan Ballard / Mullvad Browser

dom/base/Element.cpp

+5 −0

Original line number	Diff line number	Diff line
		@@ -3495,6 +3495,11 @@ static const char* GetFullscreenError(CallerType aCallerType,
		return nullptr;
		}

		if (nsContentUtils::IsPDFJS(aDocument->GetPrincipal())) {
		// The built-in pdf viewer can always request fullscreen
		return nullptr;
		}

		if (const char* error = aDocument->GetFullscreenError(aCallerType)) {
		return error;
		}

toolkit/components/pdfjs/test/browser.ini

+1 −0

Original line number	Diff line number	Diff line
		@@ -50,3 +50,4 @@ skip-if = (verify && debug && (os == 'win'))
		skip-if = headless # the headless clipboard only recognizes unicode mime type
		[browser_pdfjs_editing_telemetry.js]
		[browser_pdfjs_secondary_toolbar_telemetry.js]
		[browser_pdfjs_fullscreen.js]

toolkit/components/pdfjs/test/browser_pdfjs_fullscreen.js

0 → 100644

+84 −0

Original line number	Diff line number	Diff line
		/* Any copyright is dedicated to the Public Domain.
		* http://creativecommons.org/publicdomain/zero/1.0/ */

		const RELATIVE_DIR = "toolkit/components/pdfjs/test/";
		const TESTROOT = "https://example.com/browser/" + RELATIVE_DIR;

		function waitForFullScreenState(browser, state) {
		return new Promise(resolve => {
		let eventReceived = false;

		let observe = (subject, topic, data) => {
		if (!eventReceived) {
		return;
		}
		Services.obs.removeObserver(observe, "fullscreen-painted");
		resolve();
		};
		Services.obs.addObserver(observe, "fullscreen-painted");

		browser.ownerGlobal.addEventListener(
		`MozDOMFullscreen:${state ? "Entered" : "Exited"}`,
		() => {
		eventReceived = true;
		},
		{ once: true }
		);
		});
		}

		/**
		* Test that we can enter in presentation mode in using the keyboard shortcut
		* without having to interact with the pdf.
		*/
		add_task(async function test() {
		let mimeService = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
		let handlerInfo = mimeService.getFromTypeAndExtension(
		"application/pdf",
		"pdf"
		);

		// Make sure pdf.js is the default handler.
		is(
		handlerInfo.alwaysAskBeforeHandling,
		false,
		"pdf handler defaults to always-ask is false"
		);
		is(
		handlerInfo.preferredAction,
		Ci.nsIHandlerInfo.handleInternally,
		"pdf handler defaults to internal"
		);

		info("Pref action: " + handlerInfo.preferredAction);

		await BrowserTestUtils.withNewTab(
		{ gBrowser, url: "about:blank" },
		async function(browser) {
		// check that PDF is opened with internal viewer
		await waitForPdfJSCanvas(browser, `${TESTROOT}file_pdfjs_test.pdf`);

		const fullscreenPromise = waitForFullScreenState(browser, true);

		await SpecialPowers.spawn(browser, [], async function() {
		const { ContentTaskUtils } = ChromeUtils.import(
		"resource://testing-common/ContentTaskUtils.jsm"
		);
		const EventUtils = ContentTaskUtils.getEventUtils(content);
		await EventUtils.synthesizeKey(
		"p",
		{ ctrlKey: true, altKey: true },
		content
		);
		});

		await fullscreenPromise;
		ok(true, "Should be in fullscreen");

		await SpecialPowers.spawn(browser, [], async function() {
		const viewer = content.wrappedJSObject.PDFViewerApplication;
		await viewer.close();
		});
		}
		);
		});