The subdocument call when there's no root frame is silly, because we
won't find a canvas frame and we'll end up with transparent.
This needs to tweak the canvas frame construction code to make canvas
anon content show up on the "top" canvas, not on the page content
canvas.
This can be simplified now, because the reason we had to build canvas
anon content before processing kids of the root frame (bug 1558352) no
longer applies since I made popups regular out-of-flow elements
(bug 1799343).
Differential Revision: https://phabricator.services.mozilla.com/D179461
Subtle things:
* We now have shadow trees in NAC, inception! Only a couple lines of
code in the style system had to be changed to match :host rules and
so properly.
* Had to make highlighters.css contentaccessible, because otherwise we
can't load it from the shadow tree. I don't think it's a big deal.
* I removed some of the code from highlighters.css that claimed that
stuff inherited from the html element. That's just no longer true.
* Had to switch from `setAttribute("style", ...)` to `.style = ...;`.
This is needed because CSSOM from chrome code bypasses CSP (as
AnonymousContent did), but setAttribute() doesn't, see bug 1424474.
Differential Revision: https://phabricator.services.mozilla.com/D173998
Subtle things:
* We now have shadow trees in NAC, inception! Only a couple lines of
code in the style system had to be changed to match :host rules and
so properly.
* Had to make highlighters.css contentaccessible, because otherwise we
can't load it from the shadow tree. I don't think it's a big deal.
* I removed some of the code from highlighters.css that claimed that
stuff inherited from the html element. That's just no longer true.
* Had to switch from `setAttribute("style", ...)` to `.style = ...;`.
This is needed because CSSOM from chrome code bypasses CSP (as
AnonymousContent did), but setAttribute() doesn't, see bug 1424474.
Differential Revision: https://phabricator.services.mozilla.com/D173998
Subtle things:
* We now have shadow trees in NAC, inception! Only a couple lines of
code in the style system had to be changed to match :host rules and
so properly.
* Had to make highlighters.css contentaccessible, because otherwise we
can't load it from the shadow tree. I don't think it's a big deal.
* I removed some of the code from highlighters.css that claimed that
stuff inherited from the html element. That's just no longer true.
* Had to switch from `setAttribute("style", ...)` to `.style = ...;`.
This is needed because CSSOM from chrome code bypasses CSP (as
AnonymousContent did), but setAttribute() doesn't, see bug 1424474.
Differential Revision: https://phabricator.services.mozilla.com/D173998
Much like in bug 1620575. The front-end works with sizing in int CSS
pixels, so size to that so that there isn't a mismatch between our size
and the window size.
Differential Revision: https://phabricator.services.mozilla.com/D176359
So that they don't affect the overflow area of the root element. Since
they paint in a different widget over the current one it doesn't make a
lot of sense for them to do so.
They are in the top layer already, so for XUL documents this doesn't
change anything (because there's no root scroll frame and abspos CB
is the same as fixed CB).
For scrollable html documents it does prevent the scroll frame from
accounting for them.
This inverts the destruction order of the default tooltip's
nsMenuPopupFrame and the canvas frame, which caused an interesting leak,
since the tooltip was not getting properly unbound from the
PostDestroyData. nsMenuPopupFrame shouldn't need to manage the default
tooltip anymore, so removing it simplifies the code and also fixes that
leak (which I initially didn't find because I run opt tests by default).
Differential Revision: https://phabricator.services.mozilla.com/D161931
* Make non-menulist popups just absolute positioned top-layer items.
* Simplify menulist popups to just be static-positioned items under
nsMenuFrame.
We need to keep kPopupList only for nsMenuFrame. In the future it can be
removed, see TODO in xul.css
Differential Revision: https://phabricator.services.mozilla.com/D161404
* Make non-menulist popups just absolute positioned top-layer items.
* Simplify menulist popups to just be static-positioned items under
nsMenuFrame.
We need to keep kPopupList only for nsMenuFrame. In the future it can be
removed, see TODO in xul.css
Differential Revision: https://phabricator.services.mozilla.com/D161404
* Make non-menulist popups just absolute positioned top-layer items.
* Simplify menulist popups to just be static-positioned items under
nsMenuFrame.
We need to keep kPopupList only for nsMenuFrame. In the future it can be
removed, see TODO in xul.css
Differential Revision: https://phabricator.services.mozilla.com/D161404
* Make non-menulist popups just absolute positioned top-layer items.
* Simplify menulist popups to just be static-positioned items under
nsMenuFrame.
We need to keep kPopupList only for nsMenuFrame. In the future it can be
removed, see TODO in xul.css
Differential Revision: https://phabricator.services.mozilla.com/D161404
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
It's unused on mozilla-central, and Thunderbird can just use the canvas
frame as regular (X)HTML documents, so just use a canvas frame instead
of an nsRootBoxFrame for XUL as well.
nsRootBoxFrame was needed because of various XUL-specific things like
tooltips and so on lived there. But with the move away from XUL, that
functionality has been added to nsCanvasFrame already, behind a
principal check instead.
This also allows simplifying our background propagation setup, which was
only half-working for XUL documents (this bug is a consequence of that).
With this, most of the callers of nsCSSRendering::IsCanvasFrame can go.
They're only two of the frames that would return true for that that
actually paint backgrounds (nsCanvasFrame and nsRootBoxFrame), so the
codepaths in display list building and painting can just check
frame->IsCanvasFrame() instead.
The remaining caller to that function is
nsContainerFrame::SyncWindowProperties, and the change is also legit, in
the sense that the only thing SyncWindowProperties() really cares about
is propagating the max/min-width constraints from the root element's
style to the view/widget, and the only frame that would return true from
IsCanvasFrame and have a view is the viewport frame which is the root of
the frame tree.
Differential Revision: https://phabricator.services.mozilla.com/D90846
It's unused on mozilla-central, and Thunderbird can just use the canvas
frame as regular (X)HTML documents, so just use a canvas frame instead
of an nsRootBoxFrame for XUL as well.
nsRootBoxFrame was needed because of various XUL-specific things like
tooltips and so on lived there. But with the move away from XUL, that
functionality has been added to nsCanvasFrame already, behind a
principal check instead.
This also allows simplifying our background propagation setup, which was
only half-working for XUL documents (this bug is a consequence of that).
With this, most of the callers of nsCSSRendering::IsCanvasFrame can go.
They're only two of the frames that would return true for that that
actually paint backgrounds (nsCanvasFrame and nsRootBoxFrame), so the
codepaths in display list building and painting can just check
frame->IsCanvasFrame() instead.
The remaining caller to that function is
nsContainerFrame::SyncWindowProperties, and the change is also legit, in
the sense that the only thing SyncWindowProperties() really cares about
is propagating the max/min-width constraints from the root element's
style to the view/widget, and the only frame that would return true from
IsCanvasFrame and have a view is the viewport frame which is the root of
the frame tree.
Differential Revision: https://phabricator.services.mozilla.com/D90846
In the description of the mTruncated bit, its purpose is the same as calling
SetInlineLineBreakBeforeAndReset(). We've removed all its usages in previous
patches, so the bit is no longer needed.
Differential Revision: https://phabricator.services.mozilla.com/D151461
This patch doesn't change behavior.
This is similar to the previous patch in this series, but now for
FindBackgroundFrame().
Differential Revision: https://phabricator.services.mozilla.com/D149338
Although not needed right now (checkerboarding backgrounds get
a slice anyway due to being a different scroll root), this will
be important for the upcoming work to make backdrop filter
roots implicit. This allows WR to know when slicing up a content
slice if the prim is relevant to the backdrop root.
Differential Revision: https://phabricator.services.mozilla.com/D146145
We need them for SVG primitives.
This patch adds a bit of plumbing to disable snapping some of the primitives and forcing the antialiasing shader feature where needed, and uses it for SVG solid rectangles and images.
Differential Revision: https://phabricator.services.mozilla.com/D139024
This causes (among other things) pages to be dark when using regular
windows system colors and forcing colors to "always", which is nice.
Differential Revision: https://phabricator.services.mozilla.com/D131165
It's unused on mozilla-central, and Thunderbird can just use the canvas
frame as regular (X)HTML documents, so just use a canvas frame instead
of an nsRootBoxFrame for XUL as well.
nsRootBoxFrame was needed because of various XUL-specific things like
tooltips and so on lived there. But with the move away from XUL, that
functionality has been added to nsCanvasFrame already, behind a
principal check instead.
This also allows simplifying our background propagation setup, which was
only half-working for XUL documents (this bug is a consequence of that).
With this, most of the callers of nsCSSRendering::IsCanvasFrame can go.
They're only two of the frames that would return true for that that
actually paint backgrounds (nsCanvasFrame and nsRootBoxFrame), so the
codepaths in display list building and painting can just check
frame->IsCanvasFrame() instead.
The remaining caller to that function is
nsContainerFrame::SyncWindowProperties, and the change is also legit, in
the sense that the only thing SyncWindowProperties() really cares about
is propagating the max/min-width constraints from the root element's
style to the view/widget, and the only frame that would return true from
IsCanvasFrame and have a view is the viewport frame which is the root of
the frame tree.
Differential Revision: https://phabricator.services.mozilla.com/D90846
Note that this only happens for chrome: documents that have been
invasively styled by userChrome.css sheets. Content documents
are never intrinsically sized, and our own chrome: sheets that
use intrinsic sizing never set 'display:none' on the :root as
far as I know. I think this is an argument for removing support
for userChrome.css.
Differential Revision: https://phabricator.services.mozilla.com/D104715
