If a client calls IAccessible2::nRelations, it's likely that it will next call IAccessible2::relations to query each relation.
Furthermore, it's likely the client will call relationType and nTargets on each relation.
Therefore, fetch all of this info when nRelations is called.
The number of relations is immediately returned to the client.
The rest of the info is cached and returned to the client when the appropriate methods are called.
The info is only cached for one call; i.e. after the client calls relations once, the cache is dropped.
This makes memory management simpler and lowers the risk of cache invalidation problems.
MozReview-Commit-ID: IBoJbu42osG
--HG--
extra : rebase_source : d1af83f4c6c0e7762299e9e3da95a67217157200
The HandlerProvider::RelationsInfo method provides the type and number of targets for each relation in an IARelationData struct.
This local implementaition of IAccessibleRelation is constructed with an IARelationData struct and serves a single relation.
It uses the data from the struct to answer queries, except for actual targets.
For targets, it makes a remote call to IA2_2::relationTargetsOfType to answer the query.
We use relationTargetsOfType instead of IARelation::targets because marshaling so many IARelation pointers is a major bottleneck.
MozReview-Commit-ID: Dva00FhoSbx
--HG--
extra : rebase_source : 6dc2f46eb99e5c19ace89d0d9d21558b675ab68e
IAccessible2::relations allows you to fetch IAccessibleRelation objects for all relations.
However, you must first call IAccessible2::nRelations to get the number of relations.
In addition, getting the type and number of targets for each relation requires additional calls.
This new method allows all of this to be retrieved in a single cross-process call.
MozReview-Commit-ID: 3zEIjxEyMP5
--HG--
extra : rebase_source : 281217f4c0974040e35a197d0f1c555d9e4356fc
I left some IgnoredErrorResults for now where people warn on failure. We could
consider adding a WarnOnError() thing or something.
MozReview-Commit-ID: L5ttZ9CGKg0
This was done using the following script:
37e3803c7a/processors/chromeutils-import.jsm
MozReview-Commit-ID: 1Nc3XDu0wGl
--HG--
extra : source : 12fc4dee861c812fd2bd032c63ef17af61800c70
extra : intermediate-source : 34c999fa006bffe8705cf50c54708aa21a962e62
extra : histedit_source : b2be2c5e5d226e6c347312456a6ae339c1e634b0
This was done using the following script:
37e3803c7a/processors/chromeutils-import.jsm
MozReview-Commit-ID: 1Nc3XDu0wGl
--HG--
extra : source : 12fc4dee861c812fd2bd032c63ef17af61800c70
This was done using the following script:
37e3803c7a/processors/chromeutils-import.jsm
MozReview-Commit-ID: 1Nc3XDu0wGl
--HG--
extra : rebase_source : c004a023389f1f6bf3d2f3efe93c13d423b23ccd
This is a short-term solution to our inability to apply CSP to
chrome-privileged documents.
Ideally, we should be preventing all inline script execution in
chrome-privileged documents, since the reprecussions of XSS in chrome
documents are much worse than in content documents. Unfortunately, that's not
possible in the near term because a) we don't support CSP in system principal
documents at all, and b) we rely heavily on inline JS in our static XUL.
This stop-gap solution at least prevents some of the most common vectors of
XSS attack, by automatically sanitizing any HTML fragment created for a
chrome-privileged document.
MozReview-Commit-ID: 5w17celRFr
--HG--
extra : rebase_source : 1c0a1448a06d5b65e548d9f5362d06cc6d865dbe
extra : amend_source : 7184593019f238b86fd1e261941d8e8286fa4006
Recognize the graphics-document, graphics-object, and graphics-symbol
ARIA roles, mapping them to the DOCUMENT, GROUPING, and GRAPHIC internal
roles respectively.
JAWS uses QueryService for these.
Using QI avoids a cross-process call, since we have these interfaces cached.
More importantly, if QS is used, the handler won't get used for that object, so our caching won't be used.
MozReview-Commit-ID: Ejc2Bjp7NSv
--HG--
extra : rebase_source : f0154a6691d4d6be97e9aa60b0613ff04f76b7ff
We just return failure for these, thus avoiding a pointless cross-process call.
I also updated the comment for an existing service, since I discovered its constant name.
MozReview-Commit-ID: E5hjhR6nYtv
--HG--
extra : rebase_source : 8f01da6b98a881809a106a03eb611aadc90a6d20
Most of the Shadow DOM related code are behind "dom.webcomponents.enabled" and
this pref is only used by Shadow DOM right now, so we should rename it to
"dom.webcomponents.shadowdom.enabled"
MozReview-Commit-ID: er1c7AsSSW
