This is what we did before the fix for bug 1779578.
Failure to do this meant that RemoteAccessible::IsLink() returned false even for a child of a HyperText Accessible, which meant the ATK object was created without the HyperLink interface.
This change requires that we move the handling of pending OOP child docs, since we can't add a child document until ProxyCreated has been called on the OuterDoc.
Differential Revision: https://phabricator.services.mozilla.com/D186423
Eventually, the bulk of this functionality should be moved to TextLeafRange.
In the meantime, let's get rid of the platform specific ugliness here.
Differential Revision: https://phabricator.services.mozilla.com/D185263
Eventually, the bulk of this functionality should be moved to TextLeafRange.
In the meantime, let's get rid of the platform specific ugliness here.
Differential Revision: https://phabricator.services.mozilla.com/D185263
We previously cached aria-placeholder, but not HTML placeholder.
These both map to the placeholder object attribute exposed by Accessible::Attributes, but they are retrieved differently internally.
This also fixes LocalAccessible::Attributes to always prefer HTML placeholder over aria-placeholder as per the ARIA spec.
Previously, the attribute we preferred was somewhat indeterminate (from the user's perspective) due to the ordering of hash maps.
Differential Revision: https://phabricator.services.mozilla.com/D184795
This was done with the following Python script:
```
import re
cacheConsts = open("accessible/base/CacheConstants.h", "rt").read()
aliases = {
alias: atom
for atom, alias in
re.findall(
r'static constexpr nsStaticAtom\*\s+(.*?)\s+=\s+(nsGkAtoms::.*?);',
cacheConsts
)
}
RE_ATOM = re.compile(r'(fields->SetAttribute|(?:mCachedFields|aFields)->(?:GetAttribute|GetAttributeRefPtr|GetMutableAttribute|HasAttribute|Remove|SetAttribute)(?:<.+>)?)(\(\s*)(nsGkAtoms::[a-zA-Z_]+)')
def repl(m):
# Group 3 is the atom.
alias = aliases.get(m.group(3))
if not alias:
# No alias for this atom. Return input unaltered.
return m.group(0)
alias = "CacheKey::" + alias
# Groups 1 and 2 should be returned unaltered. Group 3 (the atom) is replaced
# with the alias.
return m.group(1) + m.group(2) + alias
for fn in (
# Found with: git grep -l 'ields->'
"accessible/base/CachedTableAccessible.cpp",
"accessible/base/nsAccessibilityService.cpp",
"accessible/base/TextLeafRange.cpp",
"accessible/generic/LocalAccessible.cpp",
"accessible/ipc/DocAccessibleParent.cpp",
"accessible/ipc/RemoteAccessible.cpp",
"accessible/ipc/RemoteAccessible.h",
"accessible/windows/sdn/sdnAccessible.cpp",
):
input = open(fn, "rt").read()
output = RE_ATOM.sub(repl, input)
open(fn, "wt").write(output)
```
Differential Revision: https://phabricator.services.mozilla.com/D184791
In the content process, we simply split into multiple calls when the number of Accessibles exceeds our maximum.
The maximum is calculated to allow for every Accessible to consume 2 KB in the IPDL message.
Currently, this means we split every 131072 Accessibles.
Of course, we could still exceed this IPDL message size if one or more Accessibles consumed a lot more than this; e.g. many labels longer than 2 KB.
However, this seems unlikely in the real world.
If this turns out to be a problem, we'll need to count the actual size of the serialized data for each Accessible.
For example, we could use AccAttributes::SizeOfExcludingThis, though that isn't exactly the serialized size.
I worry though that such data structure traversal could get expensive at scale.
In the parent process, we defer attaching the root of the new subtree to its parent until the final call.
This is achieved by saving the root during the first call and using that to attach and fire events in the final call.
Differential Revision: https://phabricator.services.mozilla.com/D184367
When we serialize a subtree, we put it into a flat list.
Previously, we included the child count for each Accessible so that we knew how many Accessibels to consume as children when de-serializing.
We also de-serialized recursively.
This made it very difficult to split serialization across IPDL calls, since we would always end up splitting in the middle of some Accessible's children.
Instead, we now no longer include the child count, but we do include the parent id and the index of the child in that parent.
This means that each Accessible can be de-serialized independently and iteratively, making it possible to split wherever we need to.
RemoteAccessible creation has also been separated from attachment of the child to its parent, since we will need this when splitting.
Differential Revision: https://phabricator.services.mozilla.com/D184366
This was done with the following command in the accessible/ directory:
```
sed -i 's/\bProxy\(.*\)Event\b/Platform\1Event/' `git grep -l 'Proxy.*Event'`
```
Differential Revision: https://phabricator.services.mozilla.com/D183700
This revision removes unnecessary include directives from cpp files in the
accessible/ipc directory. These suggestions came from the Include What You Use
tool.
Note that this is probably not everything here. It needs to be checked again
after rebasing on the latest unification changes.
Depends on D182401
Differential Revision: https://phabricator.services.mozilla.com/D182402
On Windows, focus and caret move events include the caret rectangle.
This isn't used on other platforms.
To simplify the cross-platform interface (including Platform.h), remove the ifdefs from there.
However, we use ifdefs to avoid calculating the rectangle on non-Windows platforms, instead just sending an empty rectangle.
Differential Revision: https://phabricator.services.mozilla.com/D182138
This involved moving ApplyCache from the .h into the .cpp because now that the class is no longer a template, forward declaration of DocAccessibleParent is not sufficient.
Differential Revision: https://phabricator.services.mozilla.com/D181852
There are now only small differences across platforms and even those will probably go away eventually.
Rather than having separate ipdls with a lot of duplicate content, we now have a single ipdl with ifdefs.
Differential Revision: https://phabricator.services.mozilla.com/D181848
The sync IPDL RemoteAccessible::AddToSelection was removed in bug 1811092, but the DocAccessibleChildBase method remained.
This is no longer used, so remove it.
Differential Revision: https://phabricator.services.mozilla.com/D181937
Now that the local-only TableAccessible and TableCellAccessible have been removed, we no longer need this Base suffix for the unified classes.
Aside from renaming the header files, most of the rest of this was done with the following script:
```
function replace {
sed -i 's/'$1'/'$2'/g' `git grep -l $1`
}
replace TableAccessibleBase TableAccessible
replace TableCellAccessibleBase TableCellAccessible
replace AsTableBase AsTable
replace AsTableCellBase AsTableCell
```
Differential Revision: https://phabricator.services.mozilla.com/D179803
This revision modifies UncacheChildrenInSubtree such that removed but relocated
accessibles that are aria-owned are actually relocated to their proper parent
after the removal of the formerly-aria-owning parent. It also contains some
fixes for issues that allowing this relocation unleashes. In particular:
- Logic in PutChildrenBack is reworked in order to better handle different
reparenting situations, such as unacceptable parents or original containers
(or ancestors thereof) that are no longer in the document. These changes help
us avoid failure modes related to events on defunct accessibles, or bad
coalescence due to partially-shut-down trees.
- ShutdownOrPrepareForMove has been updated to handle moving children. We now
recurse through children and move them rather than just shutting them down.
This revision adds tests which verify that the functionality works as intended.
Differential Revision: https://phabricator.services.mozilla.com/D176204
