Instead of checking the mysterious mDrawn state (which is evil and will be
removed), let nsCaret::GetPaintGeometry take sole responsibilty for deciding
whether to draw. It takes the nsStyleUserInterface checks. It also needs to
check blink state, which is made possible by separating blink state into
the mIsBlinkOn flag.
--HG--
extra : rebase_source : 4a4796c37bc9ec7c25ffb2a320f9484cee1dc52f
This also fixes what appears to be a bug. MustDrawCaret returned true
when mShowDuringSelection is set even if the caret would otherwise be
hidden due a popup showing. That doesn't make sense.
--HG--
extra : rebase_source : e05e0892a85448dbc6666e23a0dbc7fa21a9c61e
This code is somewhat tricky. nsCaret::ComputeCaretRects was checking to see
if we have a bidi keyboard, and if so, what direction it's set to.
If the direction changed from the last direction seen for *this caret*,
we fired a SelectionLanguageChange notification on the caret's current
Selection. This looked bogus because the caret can be switched between
selections so it would seem some selections won't get a notification when
they should, but that's how it was. Also, when the SelectionLanguageChange
notification fired we then didn't draw the caret in that iteration, which
seems even more bogus.
This patch fixes all that by moving the logic to fire SelectionLanguageChange
out to GetPaintGeometry and firing the notification every single time without
trying to detect whether the state has changed or not. I carefully examined
the implementation of SelectionLanguageChange and I'm pretty sure it's
idempotent so this should be correct. That doesn't look like an
expensive function, and runs at most once per window paint, so I'm not
worried about perf. Because we now fire SelectionLanguageChange before
reading selection or frame state, it should be fine to carry on after
calling SelectionLanguageChange and drawing the caret based on whatever
changes SelectionLanguageChange has performed.
This also lets us remove mKeyboardRTL, which as noted above seems inherently
bogus.
--HG--
extra : rebase_source : 3ddfd10f6f30033e090e72b4bb43f2695218752e
Also, moves the "If the offset falls outside of the frame" check from
PaintCaret to GetPaintGeometry so we do less work in that case.
UpdateCaretRects is no longer needed.
--HG--
extra : rebase_source : 4b2925952a34d0388ae44c642129ce9015c367ea
This duplicates some code, but later patches will modify the callers and then
eventually we'll re-share common code.
--HG--
extra : rebase_source : 53f4756e87aadf22046972ef9102c190fbb35132
This is the start of the changes to caret-drawing proper.
The idea is to combine GetCaretFrame and GetCaretRect into a method
GetPaintGeometry which looks like GetGeometry but returns values
needed for painting (i.e. including bidi decorations, and returning
a null frame if we're not supposed to paint due to specific caret
state, e.g. in the "off" phase of the blink cycle).
Mostly a straightforward refactoring but there are a few interesting changes:
-- nsDisplayCaret stores its bounds instead of getting them from nsCaret on
demand. Eventually those bounds will not be stored in nsCaret at all.
-- nsDisplayCaret::GetBounds returns true for aSnap. nsCaret draws snapped
rects, so why not.
-- I removed "if (caretRect.Intersects(aDirtyRect))" in EnterPresShell.
As far as I can tell, this check is incorrect because it doesn't take
transforms into account. Since there's at most one drawn caret per window,
hence we do this at most once per paint, I don't think there's any real
performance advantage to having this check.
--HG--
extra : rebase_source : c98d3a5994478b482d19cc2e2ac83ab51bd17e00
The forward declaration of Selection in nsCaret.h will be used in later patches.
--HG--
extra : rebase_source : d1b749adac983c04d3365bb6bfb76a50101beeb5
This patch started an attempt to remove nsFrameSelection.h from nsCaret.h
and metastasized into a rather large refactoring patch that removed it
from some other header files as well, and changed nsFrameSelection::HINT
into a global-scope enum with better names. I also converted bools
into CaretAssociationHint in a few places where that was appropriate,
but there are still some more places (GetChildFrameContainingOffset)
where bools need to be converted. I figured this patch was big enough already.
--HG--
extra : rebase_source : cc618ef60e707e1360644340a2648de389383da0
GetGeometry is used in two different ways. Sometimes it's used to get
information about a particular caret. Sometimes it's used to get
information about a particular selection that's not associated with
a caret. Splitting GetGeometry into a non-static version for the former
and a static version for the latter makes this more clear. Also it saves
code since for the latter version we don't have to get an nsCaret first.
--HG--
extra : rebase_source : b7730dac56b308a82b79b175749234c9a92b6f59
We don't need to store the blink rate. Instead we can just fetch it whenever
we need it. However we do need a flag to handle the case where
nsCaret::DrawAtPosition disables blinking.
--HG--
extra : rebase_source : 4f36825a8e22edd3a2e37edb1fae5675c85adadd
mCaretAspectRatio doesn't need to be stored. We can recompute it
whenever we need it.
--HG--
extra : rebase_source : 065a6996e920800edf5cbcc7f072f0439ef84553
mCaretWidthCSSPx doesn't need to be stored. We can just recompute it
whenever we need it.
--HG--
extra : rebase_source : 850b556651afade0da543e281e5fa54235969ab4
GetCaretFrameForNodeOffset only uses the nsFrameSelection and mBidiUI
from its nsCaret. For mBidiUI we can just get the pref directly whenever
we need it. By modifying GetCaretFrameForNodeOffset to take nsFrameSelection
as a parameter, we can make it static to make it clear it isn't really
related to the state of the nsCaret.
This may also fix a bug in Selection::GetPrimaryFrameForFocusNode where
things would go unexpectedly wrong if mCaret is temporarily observing
a different selection to the Selection.
--HG--
extra : rebase_source : cdd59f6e20cd1060bc5d2325cb3adb5e5c4a1d2c
Except for the changes in:
layout/generic/nsIFrame.h (part)
layout/style/nsComputedDOMStyle.h (all)
layout/style/nsRuleNode.cpp (part)
layout/style/nsStyleContext.cpp (part)
layout/style/nsStyleContext.h (part)
(see patch 3b in the bug), this patch was written with the sed script:
s/\<GetStyle\(Font\|Color\|List\|Text\|Visibility\|Quotes\|UserInterface\|TableBorder\|SVG\|Background\|Position\|TextReset\|Display\|Content\|UIReset\|Table\|Margin\|Padding\|Border\|Outline\|XUL\|SVGReset\|Column\)\>/Style\1/g
This is the third of three patches to rework the way we handle getting
the font inflation container and width data during reflow, which are
needed so that we can sometimes honor inflation during intrinsic width
calculation (which we need to do to make some form controls inflate
correctly).
This does not address users of font metrics in layout/mathml/ (for text
size and alignment issues) or in layout/xul (for text size and sizing of
listbox and tree widgets): see all the callers of GetFontMetricsFor*
in those directories.
* we know all types frames may be cast to at compile time, so instead of extensible GUID IIDs, use a big enum (see nsQueryFrame::FrameIID)
* eliminate all vestiges of refcounting, since frames aren't refcounted
Some frames (SVG frames in particular) still implement nsISupports-derived interfaces, for example nsISVGValue. There is a FrameIID for nsISVGValue that lets you go from a frame to the XPCOM interface, but you can't query back.
r+sr=roc
nsITextControlFrame didn't have an IID the first time around, but this wasn't a compile error because nsITextControlFrame::kFrameIID inherited from nsIFormControlFrame::kFrameIID. I've added a static analysis pass to verify the correct behavior, since I can't figure out a way to make the compiler do it.
--HG--
extra : rebase_source : 4894a2ca0278e2ab92f27459db77165f8348cf41
Robert O'Callahan
Olli Pettay
Jonathan Watt
Morris Tseng
Mats Palmgren
Birunthan Mohanathas
Aryeh Gregor
Ehsan Akhgari
Daniel Holbert
Andreas Gal
Trevor Saunders
Jonathan Kew
L. David Baron
Nicholas Nethercote
Boris Zbarsky
Matt Woodrow
Ed Morley
Gervase Markham
Ehsan Akhgari
Michael Wu
Masayuki Nakano
Craig Topper
Ms2ger
Zack Weinberg
Jan Küchler
timeless@mozdev.org
Timothy Nikkel
Kyle Huey
Peter Van der Beken
Benjamin Smedberg