" + "" + "Checkbox" + "
"; let tab1 = await BrowserTestUtils.openNewForegroundTab(gBrowser, gPageURL1); Services.focus.clearFocus(window); // Press an accesskey in the child document while the chrome is focused. let focusedId = await performAccessKey(tab1.linkedBrowser, "y"); is(focusedId, "button", "button accesskey"); // Press an accesskey in the child document while the content document is focused. focusedId = await performAccessKey(tab1.linkedBrowser, "z"); is(focusedId, "checkbox", "checkbox accesskey"); // Add an element with an accesskey to the chrome and press its accesskey while the chrome is focused. let newButton = document.createXULElement("button"); newButton.id = "chromebutton"; newButton.setAttribute("aria-label", "chromebutton"); newButton.setAttribute("accesskey", "z"); document.documentElement.appendChild(newButton); Services.focus.clearFocus(window); newButton.getBoundingClientRect(); // Accesskey registration happens during frame construction. focusedId = await performAccessKeyForChrome("z"); is(focusedId, "chromebutton", "chromebutton accesskey"); // Add a second tab and ensure that accesskey from the first tab is not used. const gPageURL2 = "data:text/html," + "" + ""; let tab2 = await BrowserTestUtils.openNewForegroundTab(gBrowser, gPageURL2); Services.focus.clearFocus(window); focusedId = await performAccessKey(tab2.linkedBrowser, "y"); is(focusedId, "tab2button", "button accesskey in tab2"); // Press the accesskey for the chrome element while the content document is focused. focusedId = await performAccessKeyForChrome("z"); is(focusedId, "chromebutton", "chromebutton accesskey"); gBrowser.removeTab(tab1); gBrowser.removeTab(tab2); // Test whether access key for the newButton isn't available when content // consumes the key event. // When content in the tab3 consumes all keydown events. const gPageURL3 = "data:text/html," + "" + ""; let tab3 = await BrowserTestUtils.openNewForegroundTab(gBrowser, gPageURL3); Services.focus.clearFocus(window); focusedId = await performAccessKey(tab3.linkedBrowser, "y"); is(focusedId, "tab3button", "button accesskey in tab3 should be focused"); newButton.onfocus = () => { ok(false, "chromebutton shouldn't get focus during testing with tab3"); }; // Press the accesskey for the chrome element while the content document is focused. focusedId = await performAccessKey(tab3.linkedBrowser, "z"); is( focusedId, "tab3body", "button accesskey in tab3 should keep having focus" ); newButton.onfocus = null; gBrowser.removeTab(tab3); // When content in the tab4 consumes all keypress events. const gPageURL4 = "data:text/html," + "" + ""; let tab4 = await BrowserTestUtils.openNewForegroundTab(gBrowser, gPageURL4); Services.focus.clearFocus(window); focusedId = await performAccessKey(tab4.linkedBrowser, "y"); is(focusedId, "tab4button", "button accesskey in tab4 should be focused"); newButton.onfocus = () => { // EventStateManager handles accesskey before dispatching keypress event // into the DOM tree, therefore, chrome accesskey always wins focus from // content. However, this is different from shortcut keys. todo(false, "chromebutton shouldn't get focus during testing with tab4"); }; // Press the accesskey for the chrome element while the content document is focused. focusedId = await performAccessKey(tab4.linkedBrowser, "z"); is( focusedId, "tab4body", "button accesskey in tab4 should keep having focus" ); newButton.onfocus = null; gBrowser.removeTab(tab4); newButton.remove(); }); function performAccessKey(browser, key) { return new Promise(resolve => { let removeFocus, removeKeyDown, removeKeyUp; function callback() { removeFocus(); removeKeyUp(); removeKeyDown(); SpecialPowers.spawn(browser, [], () => { let oldFocusedElement = content._oldFocusedElement; delete content._oldFocusedElement; return oldFocusedElement.id; }).then(oldFocus => resolve(oldFocus)); } removeFocus = BrowserTestUtils.addContentEventListener( browser, "focus", callback, { capture: true }, event => { if (!HTMLElement.isInstance(event.target)) { return false; // ignore window and document focus events } event.target.ownerGlobal._sent = true; let focusedElement = event.target.ownerGlobal.document.activeElement; event.target.ownerGlobal._oldFocusedElement = focusedElement; focusedElement.blur(); return true; } ); removeKeyDown = BrowserTestUtils.addContentEventListener( browser, "keydown", () => {}, { capture: true }, event => { event.target.ownerGlobal._sent = false; return true; } ); removeKeyUp = BrowserTestUtils.addContentEventListener( browser, "keyup", callback, {}, event => { if (!event.target.ownerGlobal._sent) { event.target.ownerGlobal._sent = true; let focusedElement = event.target.ownerGlobal.document.activeElement; event.target.ownerGlobal._oldFocusedElement = focusedElement; focusedElement.blur(); return true; } return false; } ); // Spawn an no-op content task to better ensure that the messages // for adding the event listeners above get handled. SpecialPowers.spawn(browser, [], () => {}).then(() => { EventUtils.synthesizeKey(key, { altKey: true, shiftKey: true }); }); }); } // This version is used when a chrome element is expected to be found for an accesskey. async function performAccessKeyForChrome(key) { let waitFocusChangePromise = BrowserTestUtils.waitForEvent( document, "focus", true ); EventUtils.synthesizeKey(key, { altKey: true, shiftKey: true }); await waitFocusChangePromise; return document.activeElement.id; }