Callers of `GetCaretBaseline` just use it to get offset and size of the caret, so
refactor the shared logic. In the call sites, delay conversion of logical to physical
rect to reduce variable shuffling.
Differential Revision: https://phabricator.services.mozilla.com/D169210
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
We were ignoring print backgrounds, but still darkening colors, which
obviously breaks.
I tracked this down to bug 191574 /
https://searchfox.org/mozilla-central/commit/0757c0a5b18b646554969a67eedf2bcb0ad41b63
> Make sure all caller have to pass in the "ignore 'print backgrounds'
> Make block/inline _not_ ignore that pref
Which was just preserving behavior. So this seems all rather accidental.
Implement backgrounds for page / page sequence frame using
print-color-adjust, and remove the virtual method.
The XUL box removal stuff seems harmless. The only XUL boxes we have
around in content are scrollbars, and we don't have scrollbars when
printing.
Differential Revision: https://phabricator.services.mozilla.com/D168382
Added WebIDL interfaces as per spec, added some necessary changes to support maplike and setlike structures to be accessed from C++.
Added `::highlight(foo)` pseudo element to CSS engine.
Implemented Highlight as new kind of `Selection` using `HighlightType::eHighlight`. This implies Selections being added/removed during runtime (one `Selection` object per highlight identifier), therefore a dynamic container for highlight `Selection` objects was added to `nsFrameSelection`. Also, the painting code queries the highlight style for highlight Selections.
Implementation is currently hidden behind a pref `dom.customHighlightAPI.enabled`.
Differential Revision: https://phabricator.services.mozilla.com/D164203
A frame doesn't have to be reflowed to change its position.
For example, if there is a container c followed by a node outside the container o, inserting a node into c reflows c, but moves o down the page without reflowing o.
In this case, we previously weren't being notified that there was a possible bounds change, which meant we weren't updating the cache.
Now, we get notified about frames moving regardless of reflow.
Since this notification includes changes to CSS left/right/top/bottom, we can also remove the code added in bug 1774705 to explicitly watch for changes to these properties.
Differential Revision: https://phabricator.services.mozilla.com/D167645
Added WebIDL interfaces as per spec, added some necessary changes to support maplike and setlike structures to be accessed from C++.
Added `::highlight(foo)` pseudo element to CSS engine.
Implemented Highlight as new kind of `Selection` using `HighlightType::eHighlight`. This implies Selections being added/removed during runtime (one `Selection` object per highlight identifier), therefore a dynamic container for highlight `Selection` objects was added to `nsFrameSelection`. Also, the painting code queries the highlight style for highlight Selections.
Implementation is currently hidden behind a pref `dom.customHighlightAPI.enabled`.
Differential Revision: https://phabricator.services.mozilla.com/D164203
Added WebIDL interfaces as per spec, added some necessary changes to support maplike and setlike structures to be accessed from C++.
Added `::highlight(foo)` pseudo element to CSS engine.
Implemented Highlight as new kind of `Selection` using `HighlightType::eHighlight`. This implies Selections being added/removed during runtime (one `Selection` object per highlight identifier), therefore a dynamic container for highlight `Selection` objects was added to `nsFrameSelection`. Also, the painting code queries the highlight style for highlight Selections.
Implementation is currently hidden behind a pref `dom.customHighlightAPI.enabled`.
Differential Revision: https://phabricator.services.mozilla.com/D164203
Added WebIDL interfaces as per spec, added some necessary changes to support maplike and setlike structures to be accessed from C++.
Added `::highlight(foo)` pseudo element to CSS engine.
Implemented Highlight as new kind of `Selection` using `HighlightType::eHighlight`. This implies Selections being added/removed during runtime (one `Selection` object per highlight identifier), therefore a dynamic container for highlight `Selection` objects was added to `nsFrameSelection`. Also, the painting code queries the highlight style for highlight Selections.
Implementation is currently hidden behind a pref `dom.customHighlightAPI.enabled`.
Differential Revision: https://phabricator.services.mozilla.com/D164203
The code for determining this is now shared with that for `contain: size`,
since the specification says that `content-visibility` follows `contain:
size` in determining applicability.
Differential Revision: https://phabricator.services.mozilla.com/D166689
HandleLastRememberedSize() only observes an element when HidesContent()
is false, so LastRememberedSizeCallback() expects it to still be false.
The problem was that it could change due to nsIFrame::Init() doing
ClearContentRelevancy().
It seems weird to use ClearContentRelevancy() for non-primary frames,
so this patch adds a InitPrimaryFrame() method which is called when a
frame becomes primary, and takes care of ClearContentRelevancy() and
HandleLastRememberedSize().
Differential Revision: https://phabricator.services.mozilla.com/D165463
This was causing layout/generic/crashtests/1683126.html to timeout with named
pages enabled.
It is possible for a frame's PageValues struct to have both the start and end
values be set to null as further children are added. In that case, we can
avoid doing an extra allocation for each of that frame's continuations, as a
small optimization.
Differential Revision: https://phabricator.services.mozilla.com/D164266
This was causing layout/generic/crashtests/1683126.html to timeout with named
pages enabled.
It is possible for a frame's PageValues struct to have both the start and end
values be set to null as further children are added. In that case, we can
avoid doing an extra allocation for each of that frame's continuations, as a
small optimization.
Differential Revision: https://phabricator.services.mozilla.com/D164266
This change adds support for `content-visibilty: auto` as well as
showing and hiding content based on the relevancy of the content as
defined in the specification. Changes to relevancy are handled by
triggering updates in a set of `content-visibility: auto` frames stored
in PresShell at the appropriate time in the document lifecycle.
Some tests are now failing due to this feature exposing the failures,
but they will be fixed in later changes.
This change is a reland of an earlier version that properly updates
intrinsic sizes and triggers an update of remembered size for the
purposes of contain-intrinsic-size when content relevancy changes.
Co-authored-by: Jihye Hong <jihye@igalia.com>
Differential Revision: https://phabricator.services.mozilla.com/D159693
This change adds support for `content-visibilty: auto` as well as
showing and hiding content based on the relevancy of the content as
defined in the specification. Changes to relevancy are handled by
triggering updates in a set of `content-visibility: auto` frames stored
in PresShell at the appropriate time in the document lifecycle.
Some tests are now failing due to this feature exposing the failures,
but they will be fixed in later changes.
Co-authored-by: Jihye Hong <jihye@igalia.com>
Differential Revision: https://phabricator.services.mozilla.com/D159693
After moving FrameChildListID into mozilla namespace, `kPrincipalList` etc. are
also exposed in the mozilla namespace. In the next part, I'll convert
FrameChildListID enum into an enum class, so the naming pollution shouldn't be
an issue.
This patch has a nice side effect that it is now easier to remove all the
aliases of FrameChildListID (`kPrincipalList` etc.) defined in multiple places
since it is confusion to have the same thing written in different ways, e.g.
`nsIFrame::kPrincipalList`, `mozilla::layout::kPrincipalList`,
`FrameChildListID::kPrincipalList`, `kPrincipalList`.
This patch doesn't change behavior.
Differential Revision: https://phabricator.services.mozilla.com/D161863
After moving FrameChildListID into mozilla namespace, `kPrincipalList` etc. are
also exposed in the mozilla namespace. In the next part, I'll convert
FrameChildListID enum into an enum class, so the naming pollution shouldn't be
an issue.
This patch has a nice side effect that it is now easier to remove all the
aliases of FrameChildListID (`kPrincipalList` etc.) defined in multiple places
since it is confusion to have the same thing written in different ways, e.g.
`nsIFrame::kPrincipalList`, `mozilla::layout::kPrincipalList`,
`FrameChildListID::kPrincipalList`, `kPrincipalList`.
This patch doesn't change behavior.
Differential Revision: https://phabricator.services.mozilla.com/D161863
This works with margin and page-size, though we can't properly test mixed
page-size yet due to limitations in both print preview testing (which does not
handle multiple pages) and paged reftests (which ignore page-size).
It may be appropriate to remove the @page { margin } propagation from Servo
after this change.
Differential Revision: https://phabricator.services.mozilla.com/D158227
This works with margin and page-size, though we can't properly test mixed
page-size yet due to limitations in both print preview testing (which does not
handle multiple pages) and paged reftests (which ignore page-size).
It may be appropriate to remove the @page { margin } propagation from Servo
after this change.
Differential Revision: https://phabricator.services.mozilla.com/D158227
No need to be an out of band member function given the only callers are
in flex / grid code.
I was looking at this in the context of bug 1798396. This probably
doesn't matter for PGO, but it being a static method helps reason about
the flags being the same for all items.
Differential Revision: https://phabricator.services.mozilla.com/D161102
Before this patch, we had two `checkVisibilty` methods on the
nsISelectionController interface, backed by several layers of implementation,
ultimately backed by a single function on nsTextFrame (which didn't actually
do anything meaningful with any of the parameters).
As it turns out, this API only had one caller, in HTMLEditUtils.cpp.
This patch converts that caller to directly query nsTextFrame (if the given
node's primary frame is indeed a nsTextFrame). The direct function-call is
renamed to HasVisibleText(), to be a bit clearer about it being text-specific
and also to avoid confusion with the (unrelated) recently-specified HTML
checkVisibility() API.
With these changes, we can remove the API from the nsISelectionController
interface and its implementations.
This patch also updates the HTMLEditUtils::IsInVisibleTextFrames documentation
(with s/all/any/) to reflect the reality of what the nsTextFrame impl actually
does.
Differential Revision: https://phabricator.services.mozilla.com/D160563
If we traverse a frame list via Iterator::operator--() repeatedly, when it
reaches the beginning of the list (mCurrent's previous sibiling is null), it
will start over from the end of the list. This behavior can be surprising, so it
is removed. Also, remove Iterator::mList since it's no longer needed.
We don't really need to rely on mozilla::ReverseIterator to implement
nsFrameList::reverse_iterator. We can abstract frame traversal operations as a
template parameter, and implement reverse_iterator directly. This is more
performant since mozilla::ReverseIterator makes a copy of the original iterator
when dereferencing the reverse iterator.
Iterator(nullptr) is now served as a end iterator for both the iterator and
reverse_iterator.
Differential Revision: https://phabricator.services.mozilla.com/D158984
This applies both to the individual mStartPageValue and mEndPageValue fields
of the nsIFrame::PageValues struct, and for the nsIFrame::PageValuesProperty
being null to indicate both mStartPageValue and mEndPageValue are auto.
Fetching this is handled by nsIFrame::GetStartPageValue and
nsIFrame::GetEndPageValue, which also ensure the use of first-in-flow frames.
Differential Revision: https://phabricator.services.mozilla.com/D157873
