We leave the nsIDOMEventTarget* versions fallible for now, but this makes the
common case a lot simpler. Note that this means that pushing a null JSContext,
a bug, is no longer handled at runtime. But I think we should just assert
against it, since there are already callers that don't check the return value.
The goal here is to get rid of this crap entirely, and make nsCxPusher always
push. But that's a scary change, so we do it in chunks. This patch, in particular,
should have zero behavioral change. This means preserving some very wrong behavior.
For instance, currently SafeAutoJSContext never pushes a damn thing, because the
safe JSContext doesn't have an associated nsIScriptContext. We preserve this
behavior, and in fact convert various similarly-buggy consumers to
SafeAutoJSContext, so that we can hoist the behavioral change into a subsequent
patch.
We could drop the descriptor for Text if we changed nsIDocument::CreateTextNode
to return an already_AddRefed<Text>, but then we'd need more casting in
nsDocument.cpp for the XPCOM CreateTextNode. Not sure which way is better,
really.
We could drop the descriptor for Text if we changed nsIDocument::CreateTextNode
to return an already_AddRefed<Text>, but then we'd need more casting in
nsDocument.cpp for the XPCOM CreateTextNode. Not sure which way is better,
really.
We leave the nsIDOMEventTarget* versions fallible for now, but this makes the
common case a lot simpler. Note that this means that pushing a null JSContext,
a bug, is no longer handled at runtime. But I think we should just assert
against it, since there are already callers that don't check the return value.
The goal here is to get rid of this crap entirely, and make nsCxPusher always
push. But that's a scary change, so we do it in chunks. This patch, in particular,
should have zero behavioral change. This means preserving some very wrong behavior.
For instance, currently SafeAutoJSContext never pushes a damn thing, because the
safe JSContext doesn't have an associated nsIScriptContext. We preserve this
behavior, and in fact convert various similarly-buggy consumers to
SafeAutoJSContext, so that we can hoist the behavioral change into a subsequent
patch.
All the code is just moving except the Optional<nsAString>::operator=
that takes a FakeDependentString. That had to be changed so it has no
dependency on the actual definition of FakeDependentString.
This is a mega-patch that was too hard to disentangle. Here's what it does:
-- Create infrastructure around AudioNode::UpdateOutputEnded to detect
when a node can no longer produce any output. When that becomes true,
disconnect it from the AudioNode graph.
-- Have AudioNode implement JSBindingFinalized to use as input in
UpdateOutputEnded.
-- Give every AudioNode a MediaStream, and give every connection
a MediaInputPort.
-- Actually play the audio that reaches the AudioContext's destination node.
-- Force AudioContext to use the audio sample rate defined by MediaStreamGraph.
-- Fix AudioBufferSourceNode's start and stop methods to possibly throw and
take default 'when' parameters.
-- Create an AudioNodeStream for AudioBufferSourceNode and give it a
AudioBufferSourceNodeEngine that does what's needed. Set parameters for
this engine in the start() and stop() methods.
-- Create AudioBuffer::GetThreadSharedChannelsForRate, which is responsible
for stealing the contents of any JS array buffers, and bundling them up
into a thread-shared read-only buffer object which can be used as
part of an AudioChunk. This method will also be responsible for
resampling and caching as necessary.
--HG--
rename : content/media/MediaStreamGraph.cpp => content/media/MediaStreamGraphImpl.h
extra : rebase_source : 9fa0ec0efa304acd6513e427103d6339c78efa53
This is a mega-patch that was too hard to disentangle. Here's what it does:
-- Create infrastructure around AudioNode::UpdateOutputEnded to detect
when a node can no longer produce any output. When that becomes true,
disconnect it from the AudioNode graph.
-- Have AudioNode implement JSBindingFinalized to use as input in
UpdateOutputEnded.
-- Give every AudioNode a MediaStream, and give every connection
a MediaInputPort.
-- Actually play the audio that reaches the AudioContext's destination node.
-- Force AudioContext to use the audio sample rate defined by MediaStreamGraph.
-- Fix AudioBufferSourceNode's start and stop methods to possibly throw and
take default 'when' parameters.
-- Create an AudioNodeStream for AudioBufferSourceNode and give it a
AudioBufferSourceNodeEngine that does what's needed. Set parameters for
this engine in the start() and stop() methods.
-- Create AudioBuffer::GetThreadSharedChannelsForRate, which is responsible
for stealing the contents of any JS array buffers, and bundling them up
into a thread-shared read-only buffer object which can be used as
part of an AudioChunk. This method will also be responsible for
resampling and caching as necessary.
nsIDOMCharacterData and nsIDOMText quickstubs are not needed after bug 826703.
nsIDOMRect quickstubs haven't been needed since bug 824970 landed.
nsCSSPropertiesQS has been unused since bug 801083 at least.
The various includes being removed are either fully on WebIDL now or using WebIDL quickstubs.
The assertions in nsINode and nsWrapperCache are to eagerly catch
failures to override those methods.
The classinfo change for XULTreeBuilder is needed because one of those
is returned via an nsIXULTemplateBuilder attribute on XULElement.
Alternately, I could mark it notflattened in Bindings.conf, but Enn
said he prefers this anyway.
The change to the QI impl in BindingUtils is needed because when
XPConnect converts an IID from C++ to JS it makes is an nsJSID, not an
nsJSIID. We've run into this before, sadly.
I removed "id" from nsIDOMXULElement because it's already on Element.
I suppose I could have left it there, but this seems cleaner.
The nsJSIID::HasInstance changes are needed to support XBL-implemented
interfaces. Sadly, this does mean that if the underlying object QIs
to something but we didn't put those props on the WebIDL we'll end up
testing true for instanceof but not exposing the props. I don't see
an obviously better way. We should work on killing off uses of
"instanceof someinterface".
The browser.js change is needed to avoid throwing exceptions during
browser-chrome tests that are now getting reported because our
swapFrameLoaders is no longer an XPConnect method.
