forked from mirrors/gecko-dev
036b82a357
This patch ressurects HiddenFrame.jsm and uses it when handling the --screenshot command line argument to load the requested page in a content process. The actual logic for grabbing the image is also ported to a JSWindowActor. The test for this feature remains suboptimal as described in the bug. Differential Revision: https://phabricator.services.mozilla.com/D40148 --HG-- rename : browser/components/shell/HeadlessShell.jsm => browser/components/shell/ScreenshotChild.jsm extra : moz-landing-system : lando
117 lines
3.4 KiB
JavaScript
117 lines
3.4 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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var HiddenFrame = ChromeUtils.import(
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"resource://gre/modules/HiddenFrame.jsm",
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{}
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).HiddenFrame;
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const HTML_NS = "http://www.w3.org/1999/xhtml";
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const XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
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/**
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* Create a frame in the |hiddenDOMWindow| to host a |browser|, then load the URL in the
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* latter.
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*
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* @param aURL
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* The URL to open in the browser.
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**/
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function createHiddenBrowser(aURL) {
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let frame = new HiddenFrame();
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return new Promise(resolve =>
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frame.get().then(aFrame => {
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let doc = aFrame.document;
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let browser = doc.createElementNS(XUL_NS, "browser");
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browser.setAttribute("type", "content");
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browser.setAttribute("disableglobalhistory", "true");
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browser.setAttribute("src", aURL);
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doc.documentElement.appendChild(browser);
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resolve({ frame, browser });
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})
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);
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}
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/**
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* Remove the browser and the HiddenFrame.
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*
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* @param aFrame
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* The HiddenFrame to dismiss.
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* @param aBrowser
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* The browser to dismiss.
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*/
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function destroyHiddenBrowser(aFrame, aBrowser) {
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// Dispose of the hidden browser.
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aBrowser.remove();
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// Take care of the frame holding our invisible browser.
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aFrame.destroy();
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}
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/**
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* Test that UITour works when called when no tabs are available (e.g., when using windowless
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* browsers).
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*/
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add_task(async function test_windowless_UITour() {
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// Get the URL for the test page.
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let pageURL = getRootDirectory(gTestPath) + "uitour.html";
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// Allow the URL to use the UITour.
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info("Adding UITour permission to the test page.");
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let pageURI = Services.io.newURI(pageURL);
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Services.perms.add(pageURI, "uitour", Services.perms.ALLOW_ACTION);
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// UITour's ping will resolve this promise.
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await new Promise(resolve => {
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// Create a windowless browser and test that UITour works in it.
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let browserPromise = createHiddenBrowser(pageURL);
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browserPromise.then(frameInfo => {
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isnot(frameInfo.browser, null, "The browser must exist and not be null.");
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// Load UITour frame script.
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frameInfo.browser.messageManager.loadFrameScript(
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"chrome://browser/content/content-UITour.js",
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false
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);
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// When the page loads, try to use UITour API.
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frameInfo.browser.addEventListener(
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"load",
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function loadListener() {
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info("The test page was correctly loaded.");
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frameInfo.browser.removeEventListener("load", loadListener, true);
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// Get a reference to the UITour API.
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info("Testing access to the UITour API.");
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let contentWindow = Cu.waiveXrays(
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frameInfo.browser.contentDocument.defaultView
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);
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isnot(
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contentWindow,
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null,
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"The content window must exist and not be null."
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);
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let uitourAPI = contentWindow.Mozilla.UITour;
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// Test the UITour API with a ping.
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uitourAPI.ping(function() {
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info("Ping response received from the UITour API.");
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// Make sure to clean up.
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destroyHiddenBrowser(frameInfo.frame, frameInfo.browser);
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// Resolve our promise.
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resolve();
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});
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},
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true
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);
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});
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// Wait for the UITour ping to complete.
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});
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});
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