Now that virtual buffers have to render across processes, we want to eliminate as many cross-process calls as possible.
This includes QueryInterface calls, since buffers query for several interfaces on every node they visit.
To avoid these cross-process QI calls, we include interfaces clients are likely to request in the handler payload.
This way, they get marshaled in the single call used to retrieve the object.
This patch does the following:
1. Passes the interceptor when building the payload.
We need this so we can get interceptors for other interfaces.
2. Splits the payload into two main parts: a static part and a dynamic part.
The (new) static part contains the interface pointers. The dynamic part contains the rest.
This is necessary because the refresh call cannot pass the interceptor, but the interceptor is needed to build the static part.
Also, re-building the static part is pointless when refreshing.
3. Includes the interface pointers in the payload (BuildStaticIA2Data).
The pointers also have to be cleaned up after marshaling.
4. Releases the interface pointers in the handler after the payload is received.
We do this because they're aggregated by the proxy manager as they're unmarshaled.
MozReview-Commit-ID: 6VRLMNScgwW
--HG--
extra : rebase_source : 249589643b7a69e870962ea55a44849bf03a2693
Reorder DocAccessibleParent's and DocAccessibleChild's constructor initializer lists to fix these VS2017 warnings:
a11y/DocAccessibleParent.h(32): warning C5038: data member 'mozilla::a11y::DocAccessibleParent::mShutdown' will be initialized after data member 'mozilla::a11y::DocAccessibleParent::mEmulatedWindowHandle'
accessible/ipc/win/DocAccessibleChild.cpp(22): warning C5038: data member 'mozilla::a11y::DocAccessibleChild::mEmulatedWindowHandle' will be initialized after data member 'mozilla::a11y::DocAccessibleChild::mIsRemoteConstructed'
MozReview-Commit-ID: 8flWtpe13ob
--HG--
extra : rebase_source : 96528a886c099897df691623948d755eecda119f
Bug 873444 implemented support for IAccessibleHypertext2.
AccessibleHandler's AccessibleTextTearoff needs to be updated accordingly, thus eliminating an additional cross-process QueryInterface for IAHypertext2 when the client also wants IAText.
MozReview-Commit-ID: EGqYX7jY9Cp
--HG--
extra : rebase_source : cc79b605bf75538bebc10b104e5f6771bc52d2f4
AccessibleHandler's AccessibleTextTearoff currently makes separate queries for the IAccessibleText and IAccessibleHypertext interfaces.
However, IAccessibleHypertext inherits from IAccessibleText, and wherever one of these interfaces are present, Gecko always implements both.
Therefore, we should just query for and use IAccessibleHypertext for all of these methods, thus saving a cross-process call should a client want both interfaces.
MozReview-Commit-ID: Fb5P7IGDAZZ
--HG--
extra : rebase_source : 08c9484989eaf8b810ef6f9ababf354eee8fa7f8
IAccessibleHypertext::hyperlink returns an IAccessibleHyperlink, not an IAccessible2.
previously, the handler didn't know about this interface, so it wasn't used.
Thus, any accessibles retrieved in this way did not benefit from the cache.
This patch teaches the handler about IAccessibleHyperlink so the handler gets used in this case.
MozReview-Commit-ID: 17CxxGyCLrE
--HG--
extra : rebase_source : 7f933bfd880c9ee009eafe8cee4ece4ef83004cd
IAccessible2_2::get_attribute is not implemented yet in Gecko.
However, the handler still passes this through, thus resulting in a pointless cross-process call.
Instead, just return E_NOTIMPL in the handler for this method.
MozReview-Commit-ID: 5XHieUC4cuz
--HG--
extra : rebase_source : 814ceda6d9dd4ec26f05a4ff90bbd4af2a6eb84e
(Path is actually r=froydnj.)
Bug 1400459 devirtualized nsIAtom so that it is no longer a subclass of
nsISupports. This means that nsAtom is now a better name for it than nsIAtom.
MozReview-Commit-ID: 91U22X2NydP
--HG--
rename : xpcom/ds/nsIAtom.h => xpcom/ds/nsAtom.h
extra : rebase_source : ac3e904a21b8b48e74534fff964f1623ee937c67
MozReview-Commit-ID: A1lCqvbQYAF
There is no clean API-based solution to this, so instead I went grovelling
through the DCOM wire protocol and was able to write a function that converts
handler OBJREFs into standard OBJREFs.
See also:
https://msdn.microsoft.com/en-us/library/cc226801
--HG--
extra : rebase_source : a650055c4adda3a1d99262e47f2b463074c6b935
MozReview-Commit-ID: LVML7EZaSYD
In non-e10s AccessibleWrap::HandleAccEvent, we special case our handling of
CARET_MOVED and FOCUS events with a call to UpdateSystemCaretFor. In e10s mode
we were not doing the same thing for proxied events sent from content. This
threw JAWS for a loop and presumably messes up other ATs as well.
This patch modifies the IPDL messages for these two events so that we may
send the caret rect along with the event, thus allowing us to update the
system caret for proxied events as well.
--HG--
extra : rebase_source : e1502c12b038739520afd5c7078d011e25ea669e
Here is a scenario under which the assert is invalid:
RecvHideEvent is received on a DocAccessibleParent DAP1 that has a child document DAP2... that in turn has a child document DAP3. DAP1::RecvHideEvent calls Shutdown on its root ProxyAccessible. This recursively calls Shutdown on child ProxyAccessibles until it reaches the one that is the parent of the child document DAP2. ProxyAccessibleBase::Shutdown then attempts to Unbind DAP2, which calls DAP1::RemoveChildDoc, which trips the assert because DAP2 has child document DAP3.
We sometimes briefly have more than one root DocAccessible associated with a TabChild, for example, while navigating links in a page. This patch makes sure that we use the correct accessible when delaying messages that we forward to the parent process.
