The underlying issue here is an invalidation bug with XUL layout. When a
popup opens, we try to lay it out at full size, then post a reflow
callback to constrain it.
There's an intermediate step there where the popup might remain at full
size, and the constraining operates directly on mRect, which isn't quite
sound and doesn't update the scrollport of descendants.
Make nsMenuPopupFrame inherit from nsBlockFrame instead, doing
potentially two layout passes when constrained.
This fixes the issue at hand, and removes XUL layout from menu popups,
so it's a win-win.
To make reasoning about it a bit easier, factor out a bunch of the XUL
positioning code to be const. The mutation of mRect etc which was going
on otherwise was pretty hard to reason about.
Differential Revision: https://phabricator.services.mozilla.com/D170368
nsBlockFrame clears its line cursor at the beginning of reflow.
This test-case triggers a mix of conditions where a line iterator /
cursor can be created in the middle of reflow because of
nsListControlFrame::DidReflow triggering scrolling:
nsLineList_const_iterator::operator=
nsLineIterator::nsLineIterator
nsBlockFrame::GetLineIterator
nsIFrame::GetFrameFromDirection
nsFrameSelection::GetPrevNextBidiLevels
nsFrameSelection::GetPrevNextBidiLevels
nsCaret::GetCaretFrameForNodeOffset
nsCaret::GetFrameAndOffset
mozilla::AccessibleCaretManager::IsCaretDisplayableInCursorMode
mozilla::AccessibleCaretManager::UpdateCaretsForCursorMode
mozilla::AccessibleCaretManager::UpdateCarets
mozilla::AccessibleCaretManager::OnScrollPositionChanged
mozilla::AccessibleCaretEventHub::NoActionState::OnScrollPositionChanged
mozilla::AccessibleCaretEventHub::ScrollPositionChanged
nsDocShell::NotifyScrollObservers
mozilla::ScrollFrameHelper::ScrollToImpl
mozilla::ScrollFrameHelper::CompleteAsyncScroll
mozilla::ScrollFrameHelper::ScrollToWithOrigin
mozilla::ScrollFrameHelper::ScrollTo
nsHTMLScrollFrame::ScrollTo
non-virtual thunk to nsHTMLScrollFrame::ScrollTo
ScrollToShowRect
mozilla::PresShell::ScrollFrameIntoView
nsListControlFrame::ScrollToFrame
nsListControlFrame::ScrollToIndex
nsListControlFrame::ResetList
nsListControlFrame::DidReflow
nsLineLayout::ReflowFrame
nsBlockFrame::ReflowInlineFrame
nsBlockFrame::DoReflowInlineFrames
nsBlockFrame::ReflowInlineFrames
nsBlockFrame::ReflowLine
nsBlockFrame::ReflowDirtyLines
nsBlockFrame::Reflow
nsBlockReflowContext::ReflowBlock
nsBlockFrame::ReflowBlockFrame
nsBlockFrame::ReflowLine
Move the scrolling to happen at a stable state instead.
Differential Revision: https://phabricator.services.mozilla.com/D171998
Before, there existed 3 virtual functions that calculated baselines:
- `GetLogicalBaseline`
- `GetVerticalAlignBaseline`
- `GetNaturalBaselineBOffset`
Each of them had slightly different behaviours:
- `GetLogicalBaseline` would synthesize a baseline if there is no baseline.
Others would simply return `false`.
- `GetNaturalBaselineBOffset` requires the caller to pick which of first/last
baseline to calculate. Others pick on on their own.
- `GetNaturalBaselineBOffset`'s result can be either offset from border box
start/end edge, depending on the caller-supplied baseline. Others always
return offset from border box start edge.
Now:
- `GetNaturalBaselineBOffset` is the sole virtual function.
- `GetLogicalBaseline` exists to support its use, with 2 virtual helper functions:
- `SynthesizeFallbackBaseline` to generate a baseline for elements that
doesn't have one.
- `GetBaselineSharingGroup` to preserve the default baseline picking behaviour.
Differential Revision: https://phabricator.services.mozilla.com/D167990
After this patch, we still need nsFrameList::Enumerator to iterate
nsFrameList::Slice. We might enhance nsFrameList::Iterator to support Slice, but
I'll leave this for another day.
Differential Revision: https://phabricator.services.mozilla.com/D158809
This will allow this function to eventually return an appropriate value
depending on whether or not content is skipped via `content-visibility:
auto`. This change also starts looking directly at whether
content-visibility is skipping content or not, which should make it
compatible with a future `content-visibility: auto` implementation.
Differential Revision: https://phabricator.services.mozilla.com/D157831
The regressing bug accidentally swapped the foreground / bg colors in a
way such that it doesn't look like there's an outline.
Do some adjacent clean-up while at it, and add a test.
Differential Revision: https://phabricator.services.mozilla.com/D156947
When there is size containment, if the contain-intrinsic-size is not none,
we need to use the available contain-intrinsic-size to determine the
intrinsic inline and block sizes.
This patch also updates and adds a couple of sub-tests in contain-intrinsic-size-009.html.
Differential Revision: https://phabricator.services.mozilla.com/D155051
And remove one unused caller.
This might change behavior of some selection contrast checks and backplating
which will potentially use the right background-color after this patch. The
next patch ensures this is also accounted for for scrollbars.
Unfortunately selection contrast checks are non-trivial to test because we only
do the contrast check with system colors, and we'd need a default selection
color close to the highlight color to do this.
Differential Revision: https://phabricator.services.mozilla.com/D151017
Add a dom/base/rust crate called just "dom" where we can share these.
Most of the changes are automatic:
s/mozilla::EventStates/mozilla::dom::ElementState/
s/EventStates/ElementState/
s/NS_EVENT_STATE_/ElementState::/
s/NS_DOCUMENT_STATE_/DocumentState::/
And so on. This requires a new cbindgen version to avoid ugly casts for
large shifts.
Differential Revision: https://phabricator.services.mozilla.com/D148537
With this patch on its own we get some a11y tests failures, but those
are fixed on a later patch.
Combobox select no longer creates frames for its <options>, nor an
nsListControlFrame. Instead, it computes its right intrinsic size using
the largest size of the options. This is better, because we render the
option text using the select style so if the select and option styles
are mismatched it'd cause changes in the size of the select when text
changes. See the following in a build without the patch, for example:
<select>
<option>ABC</option>
<option style="font-size: 1px">Something long</option>
</select>
This seems like a rather obscure case, but it's important to get it
right, see bug 1741888.
With this patch we use the same setup in content and parent processes
(this needs bug 1596852 and bug 1744152). This means we can remove a
bunch of the native view and popup code in nsListControlFrame. A couple
browser_* tests are affected by this change and have been tweaked
appropriately (the changes there are trivial).
Not creating an nsListControlFrame for dropdown select means that we
need to move a bunch of the event handling code from nsListControlFrame
to a common place that nsComboboxControlFrame can also use. That place
is HTMLSelectEventListener, and I think the setup is much nicer than
having the code intertwined with nsListControlFrame. It should be
relatively straight-forward to review, mostly moving code from one part
to another.
Another thing that we need to do in HTMLSelectEventListener that we
didn't use to do is listening for DOM mutations on the dropdown. Before,
we were relying on changes like text mutations triggering a reflow of
the listcontrolframe, which also triggered a reflow of the
comboboxcontrolframe, which in turn updated the text of the anonymous
content. Now we need to trigger that reflow manually.
There are some further simplifications that can be done after this
lands (cleanup naming of openInParentProcess and so on, among others),
but I'd rather land this first (after the merge of course) and work on
them separately.
Differential Revision: https://phabricator.services.mozilla.com/D132719
With this patch on its own we get some a11y tests failures, but those
are fixed on a later patch.
Combobox select no longer creates frames for its <options>, nor an
nsListControlFrame. Instead, it computes its right intrinsic size using
the largest size of the options. This is better, because we render the
option text using the select style so if the select and option styles
are mismatched it'd cause changes in the size of the select when text
changes. See the following in a build without the patch, for example:
<select>
<option>ABC</option>
<option style="font-size: 1px">Something long</option>
</select>
This seems like a rather obscure case, but it's important to get it
right, see bug 1741888.
With this patch we use the same setup in content and parent processes
(this needs bug 1596852 and bug 1744152). This means we can remove a
bunch of the native view and popup code in nsListControlFrame. A couple
browser_* tests are affected by this change and have been tweaked
appropriately (the changes there are trivial).
Not creating an nsListControlFrame for dropdown select means that we
need to move a bunch of the event handling code from nsListControlFrame
to a common place that nsComboboxControlFrame can also use. That place
is HTMLSelectEventListener, and I think the setup is much nicer than
having the code intertwined with nsListControlFrame. It should be
relatively straight-forward to review, mostly moving code from one part
to another.
Another thing that we need to do in HTMLSelectEventListener that we
didn't use to do is listening for DOM mutations on the dropdown. Before,
we were relying on changes like text mutations triggering a reflow of
the listcontrolframe, which also triggered a reflow of the
comboboxcontrolframe, which in turn updated the text of the anonymous
content. Now we need to trigger that reflow manually.
There are some further simplifications that can be done after this
lands (cleanup naming of openInParentProcess and so on, among others),
but I'd rather land this first (after the merge of course) and work on
them separately.
Differential Revision: https://phabricator.services.mozilla.com/D132719
1. Use dom events in RootAccessible to fire ACTIVE state changes.
2. Add DOMMenuItemInactive events to nsListControlFrame and fire it on
the previously active option.
3. Don't fire those DOM events on collapsed combo boxes.
4. Add ACTIVE state change events for collapsed combo box options.
Differential Revision: https://phabricator.services.mozilla.com/D130298
1. Use dom events in RootAccessible to fire ACTIVE state changes.
2. Add DOMMenuItemInactive events to nsListControlFrame and fire it on
the previously active option.
3. Don't fire those DOM events on collapsed combo boxes.
4. Add ACTIVE state change events for collapsed combo box options.
Differential Revision: https://phabricator.services.mozilla.com/D130298
These are only used for frameset painting and the non-e10s <select>
dropdown focus codepath. We have other more appropriate standard
colors for this.
Differential Revision: https://phabricator.services.mozilla.com/D129992
This patch doesn't change any user-observable behavior.
StaticAutoPtr lets us remove a handful of explicit 'delete' statements, by
making deletion happen automatically when these variables are cleared.
Differential Revision: https://phabricator.services.mozilla.com/D127336
So that margin is not included in the rect for visibility calculations,
and padding and margin are accounted properly on them.
Differential Revision: https://phabricator.services.mozilla.com/D113853
This shouldn't change behavior, but is the biggest cross-platform part
of the change so I'd like to get it landed sooner rather than later.
The two calls like:
GetColor(ColorID::TextSelectBackground, color);
if (color == 0x000000) {
mColorTextSelectForeground = NS_RGB(0xff, 0xff, 0xff);
} else {
mColorTextSelectForeground = NS_DONT_CHANGE_COLOR;
}
that I'm removing are just broken. They were calling the version of
GetColor the function that took a default value when the color wasn't
available, not the version of the color with the outparam.
To prevent such mistakes, add two signatures, GetColor(), returning a
Maybe<nscolor> and Color(), returning a color with a fallback.
Differential Revision: https://phabricator.services.mozilla.com/D110651
This shouldn't change behavior, but is the biggest cross-platform part
of the change so I'd like to get it landed sooner rather than later.
The two calls like:
GetColor(ColorID::TextSelectBackground, color);
if (color == 0x000000) {
mColorTextSelectForeground = NS_RGB(0xff, 0xff, 0xff);
} else {
mColorTextSelectForeground = NS_DONT_CHANGE_COLOR;
}
that I'm removing are just broken. They were calling the version of
GetColor the function that took a default value when the color wasn't
available, not the version of the color with the outparam.
To prevent such mistakes, add two signatures, GetColor(), returning a
Maybe<nscolor> and Color(), returning a color with a fallback.
Differential Revision: https://phabricator.services.mozilla.com/D110651
We always use PreventDefault for <select> element, which is
problematic if modal dialog is on as it prevents cancelling
the dialog.
We fix it by not blocking the default action if <select> is
not shown.
Differential Revision: https://phabricator.services.mozilla.com/D82590
This is a straightforward conversion except that
`NS_SUBTREE_DIRTY(this)` can be written terser as `IsSubtreeDirty()`.
Differential Revision: https://phabricator.services.mozilla.com/D82811
There's no use case for stateful comparators, so they can be just plain
function pointers.
This is used in some hot places like CSS selector matching.
Differential Revision: https://phabricator.services.mozilla.com/D77084
Converts `ui.menu.incremental_search.timeout` to a static pref and replaces macros related to the incremental search timeout with the actual pref, so that they are kept in sync without the need to manually update any macros. The two `.xml` files mentioned in the note were nowhere to be found, so this patch makes the assumption that those do not exist anymore and do not need to be kept in sync.
Differential Revision: https://phabricator.services.mozilla.com/D75182
Kinda drive-by, but I think this is sane and not risky... This is used for
<select size> / <select multiple>, and only scrolls the option into view (it
only scrolls a single scroll frame, the one inside the <select>).
If the author specifies scroll-padding / margin in there I don't see why we
shouldn't respect it when doing key selection / navigation / etc.
Same for menupopups (though those are even less risky because we control the CSS
there).
Differential Revision: https://phabricator.services.mozilla.com/D70543
--HG--
extra : moz-landing-system : lando
And rename GetRenderLabel to GetRenderedLabel, as it's a slightly more
descriptive name IMHO.
Differential Revision: https://phabricator.services.mozilla.com/D69837
--HG--
extra : moz-landing-system : lando
According to spec, option elements with label attributes should show and use
those labels rather than their element text. So let's do that.
Requires some trickery because the option element is a block element (so it
lays out its width based on its text content) so we put its label (if it has
one) in its ::before and skip frame generation so it measures the text of its
label, not of its text node children.
Differential Revision: https://phabricator.services.mozilla.com/D63545
--HG--
extra : moz-landing-system : lando
According to spec, option elements with label attributes should show and use
those labels rather than their element text. So let's do that.
Requires some trickery because the option element is a block element (so it
lays out its width based on its text content) so we put its label (if it has
one) in its ::before and skip frame generation so it measures the text of its
label, not of its text node children.
Differential Revision: https://phabricator.services.mozilla.com/D63545
--HG--
extra : moz-landing-system : lando
The inclusions were removed with the following very crude script and the
resulting breakage was fixed up by hand. The manual fixups did either
revert the changes done by the script, replace a generic header with a more
specific one or replace a header with a forward declaration.
find . -name "*.idl" | grep -v web-platform | grep -v third_party | while read path; do
interfaces=$(grep "^\(class\|interface\).*:.*" "$path" | cut -d' ' -f2)
if [ -n "$interfaces" ]; then
if [[ "$interfaces" == *$'\n'* ]]; then
regexp="\("
for i in $interfaces; do regexp="$regexp$i\|"; done
regexp="${regexp%%\\\|}\)"
else
regexp="$interfaces"
fi
interface=$(basename "$path")
rg -l "#include.*${interface%%.idl}.h" . | while read path2; do
hits=$(grep -v "#include.*${interface%%.idl}.h" "$path2" | grep -c "$regexp" )
if [ $hits -eq 0 ]; then
echo "Removing ${interface} from ${path2}"
grep -v "#include.*${interface%%.idl}.h" "$path2" > "$path2".tmp
mv -f "$path2".tmp "$path2"
fi
done
fi
done
Differential Revision: https://phabricator.services.mozilla.com/D55443
--HG--
extra : moz-landing-system : lando
