зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1722621: Fix detection of autocomplete popups in XULListboxAccessible after recent DOM changes. r=morgan
Previously, we used GetFlattenedTreeParent from the list box to find the autocomplete popup. After bug 1708735, this now returns a slot instead of the panel. We now use GetParentElement instead, which works as expected and is consistent with other code in this class anyway. I also added a new test so this doesn't regress yet again. We already have test_focus_autocomplete.xhtml which is supposed to test this, but that test is broken, was thus disabled and is complicated enough that I don't think we're going to fix it any time soon, if ever. The new test was triggering an assertion on Windows when trying to handle a caret event, so HyperTextAccessible::GetCaretRect had to be tweaked slightly to fix this. Differential Revision: https://phabricator.services.mozilla.com/D121163
This commit is contained in:
James Teh
Родитель
2f5b54bbea
Коммит
f2a0bfe104
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@ -1818,8 +1818,16 @@ LayoutDeviceIntRect HyperTextAccessible::GetCaretRect(nsIWidget** aWidget) {
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// the character. This is important for font size transitions, and is
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// necessary because the Gecko caret uses the previous character's size as
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// the user moves forward in the text by character.
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int32_t caretOffset = CaretOffset();
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if (NS_WARN_IF(caretOffset == -1)) {
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// The caret offset will be -1 if this Accessible isn't focused. Note that
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// the DOM node contaning the caret might be focused, but the Accessible
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// might not be; e.g. due to an autocomplete popup suggestion having a11y
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// focus.
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return LayoutDeviceIntRect();
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}
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nsIntRect charRect = CharBounds(
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CaretOffset(), nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE);
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caretOffset, nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE);
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if (!charRect.IsEmpty()) {
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caretRect.SetTopEdge(charRect.Y());
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}
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@ -23,6 +23,7 @@ support-files =
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[test_flush.html]
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[test_focusable_statechange.html]
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[test_focus_aria_activedescendant.html]
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[test_focus_autocomplete.html]
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[test_focus_autocomplete.xhtml]
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# Disabled on Linux and Windows due to frequent failures - bug 695019, bug 890795
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skip-if = os == 'win' || os == 'linux'
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@ -0,0 +1,83 @@
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<!doctype html>
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<head>
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<title>Form Autocomplete Tests</title>
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<link rel="stylesheet"
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href="chrome://mochikit/content/tests/SimpleTest/test.css" />
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<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>
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<script src="../common.js"></script>
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<script src="../promisified-events.js"></script>
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<script src="../role.js"></script>
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<script type="application/javascript">
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const { TestUtils } = ChromeUtils.import(
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"resource://testing-common/TestUtils.jsm");
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async function waitForFocusOnOptionWithname(name) {
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let event = await waitForEvent(
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EVENT_FOCUS,
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evt => evt.accessible.role == ROLE_COMBOBOX_OPTION
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);
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if (!event.accessible.name) {
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// Sometimes, the name is null for a very short time after the focus
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// event.
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await waitForEvent(EVENT_NAME_CHANGE, event.accessible);
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}
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is(event.accessible.name, name, "Got focus on option with name " + name);
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}
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async function doTests() {
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const input = getNode("input");
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info("Focusing the input");
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let focused = waitForEvent(EVENT_FOCUS, input);
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input.focus();
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await focused;
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let shown = waitForEvent(EVENT_SHOW, event =>
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event.accessible.role == ROLE_GROUPING &&
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event.accessible.firstChild.role == ROLE_COMBOBOX_LIST);
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info("Pressing ArrowDown to open the popup");
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synthesizeKey("KEY_ArrowDown");
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await shown;
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// The popup still doesn't seem to be ready even once it's fired an a11y
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// show event!
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const controller = Cc["@mozilla.org/autocomplete/controller;1"].
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getService(Ci.nsIAutoCompleteController);
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info("Waiting for popup to be fully open and ready");
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await TestUtils.waitForCondition(() => controller.input.popupOpen);
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focused = waitForFocusOnOptionWithname("a");
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info("Pressing ArrowDown to focus first item");
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synthesizeKey("KEY_ArrowDown");
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await focused;
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focused = waitForFocusOnOptionWithname("b");
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info("Pressing ArrowDown to focus the second item");
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synthesizeKey("KEY_ArrowDown");
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await focused;
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focused = waitForEvent(EVENT_FOCUS, input);
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info("Pressing enter to select the second item");
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synthesizeKey("KEY_Enter");
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await focused;
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is(input.value, "b", "input value filled with second item");
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SimpleTest.finish();
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}
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SimpleTest.waitForExplicitFinish();
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addA11yLoadEvent(doTests);
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</script>
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</head>
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<body>
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<input id="input" list="list">
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<datalist id="list">
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<option id="a" value="a">
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<option id="b" value="b">
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</datalist>
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</body>
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</html>
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@ -67,10 +67,10 @@ bool XULColumnItemAccessible::DoAction(uint8_t aIndex) const {
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XULListboxAccessible::XULListboxAccessible(nsIContent* aContent,
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DocAccessible* aDoc)
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: XULSelectControlAccessible(aContent, aDoc) {
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nsIContent* parentContent = mContent->GetFlattenedTreeParent();
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if (parentContent) {
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dom::Element* parentEl = mContent->GetParentElement();
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if (parentEl) {
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nsCOMPtr<nsIAutoCompletePopup> autoCompletePopupElm =
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parentContent->AsElement()->AsAutoCompletePopup();
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parentEl->AsAutoCompletePopup();
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if (autoCompletePopupElm) mGenericTypes |= eAutoCompletePopup;
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}
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