Most preference callbacks use literal strings for their domain filters, which
means that there's no need to make copies of them at all. Currently, however,
every preference observer node makes a separate heap-allocated copy of its
domain string.
This patch switches the domain string storage to nsCString instances, which
dramatically reduces the amount of unnecessary copies, at the expense of
making the callback nodes slightly larger.
MozReview-Commit-ID: 8NA3t2JS2UI
... and cleanup unused keywords / getters using the scripts in
layout/style/tools
Differential Revision: https://phabricator.services.mozilla.com/D1901
MozReview-Commit-ID: BRUGcje7X0q
Most of it is automated by:
%s/eStyleContentType_/StyleContentType::/g
%s/nsStyleContentType/StyleContentType/g
But I removed some parentheses by hand.
Differential Revision: https://phabricator.services.mozilla.com/D1900
MozReview-Commit-ID: 3IcirjIYX5p
This is done with the following script:
```python
#!/usr/bin/env python3
import re
import sys
from pathlib import Path
if len(sys.argv) != 2:
print("Usage: {} objdir".format(sys.argv[0]))
exit(1)
generated = Path(sys.argv[1]) / "layout" / "style"
generated = generated / "nsComputedDOMStyleGenerated.cpp"
RE_GENERATED = re.compile(r"DoGet\w+")
keeping = set()
with generated.open() as f:
for line in f:
m = RE_GENERATED.search(line)
if m is not None:
keeping.add(m.group(0))
HEADER = "layout/style/nsComputedDOMStyle.h"
SOURCE = "layout/style/nsComputedDOMStyle.cpp"
# We need to keep functions invoked by others
RE_DEF = re.compile(r"nsComputedDOMStyle::(DoGet\w+)\(\)")
RE_SRC = re.compile(r"\b(DoGet\w+)\(\)")
with open(SOURCE, "r") as f:
for line in f:
m = RE_DEF.search(line)
if m is not None:
continue
m = RE_SRC.search(line)
if m is not None:
keeping.add(m.group(1))
removing = set()
remaining_lines = []
with open(HEADER, "r") as f:
for line in f:
m = RE_SRC.search(line)
if m is not None:
name = m.group(1)
if name not in keeping:
print("Removing " + name)
removing.add(name)
continue
remaining_lines.append(line)
with open(HEADER, "w", newline="") as f:
f.writelines(remaining_lines)
remaining_lines = []
is_removing = False
with open(SOURCE, "r") as f:
for line in f:
if is_removing:
if line == "}\n":
is_removing = False
continue
m = RE_DEF.search(line)
if m is not None:
name = m.group(1)
if name in removing:
remaining_lines.pop()
if remaining_lines[-1] == "\n":
remaining_lines.pop()
is_removing = True
continue
remaining_lines.append(line)
with open(SOURCE, "w", newline="") as f:
f.writelines(remaining_lines)
```
MozReview-Commit-ID: ACewvZ9ztWp
This changes the order of properties returned from gCS. The old order
doesn't make much sense, and other browsers don't agree on an identical
order either, so it should be trivial to change it. Also the spec isn't
super clear / useful in this case.
Several -moz-prefixed properties are excluded from the list due to their
being internal. I suspect they are never accessible anyway, so probably
nothing gets changed by this.
MozReview-Commit-ID: 9LfangjpJ3P
The idea with this patch is that style code will first call
InlineStyleDeclarationWillChange before style declaration has changed, and SetInlineStyleDeclaration once it has changed.
In order to be able to report old attribute value, InlineStyleDeclarationWillChange reads the value and also calls AttributeWillChange (so that DOMMutationObserser can grab the old value). Later SetInlineStyleDeclaration passes the old value to
SetAttrAndNotify so that mutation events and attributeChanged callbacks are handled correctly.
Because of performance, declaration can't be cloned for reading the old value. And that is why the recently-added callback is used to detect when declaration is about to change (bug 1466963 and followup bug 1468665).
To keep the expected existing behavior, even if declaration isn't changed, but just a new declaration was created (since there wasn't any), we need to still run all these
willchange/set calls. That is when the code has 'if (created)' checks.
Since there are several declaration implementation and only nsDOMCSSAttributeDeclaration needs the about-to-change callback, GetPropertyChangeClosure is the one to initialize the callback closure, and the struct which is then passes as data to the closure.
Apparently we lost mutation event testing on style attribute when the pref was added, so test_style_attr_listener.html is modified to test both pref values.
This patch is an automatic replacement of s/NS_NOTREACHED/MOZ_ASSERT_UNREACHABLE/. Reindenting long lines and whitespace fixups follow in patch 6b.
MozReview-Commit-ID: 5UQVHElSpCr
We return '0' for the length, and "" for every declaration. This matches other
browsers and the spec in the "no style" behavior.
Of course we don't claim not to have a style for every case the spec says, but
that will come later, given that's a much more risky change.
This doesn't make any case where we returned something useful return something
less useful, but stops null from getting returned, and returns the empty string
which matches other browsers when they cannot return a style.
MozReview-Commit-ID: 7Sc7HL5CgZU
GCC doesn't like StyleComplexColor with constructor in an anonymous
struct in an anonymous union. Replace the use of a union to access
`mBorder[..]Color` fields as an array with an accessor methods.
MozReview-Commit-ID: 1Wulh1qKYCZ
Refactored StyleComplexColor to support "complex" blending between
background (numeric) color and foreground color (currentColor).
Made explicit the distinction between numeric, currentColor and a
complex blend in Gecko and Stylo.
This is to support SMIL animation, for example, of the form:
<animate from="rgb(10,20,30)" by="currentColor" ... />
MozReview-Commit-ID: IUAK8P07gtm
This was done automatically replacing:
s/mozilla::Move/std::move/
s/ Move(/ std::move(/
s/(Move(/(std::move(/
Removing the 'using mozilla::Move;' lines.
And then with a few manual fixups, see the bug for the split series..
MozReview-Commit-ID: Jxze3adipUh
I can land the removal behind a pref first if you want and all that instead.
Again, this doesn't remove the internal usage for getComputedStyle (yet).
MozReview-Commit-ID: LA157ohfLhu
It's been removed for a while on Nightly without any known regressions. This
gives us a full beta cycle of telemetry and two nightly cycles without the API
before shipping.
This only removes the API, followup work will replace serialization by Servo's,
and remove the remaining DOM interfaces.
MozReview-Commit-ID: 2m1taYg5xEr
