As it won't after that if something flushes (because
FlushPendingNotifications will just ignore the flush if the sink is no
longer a document observer).
Otherwise we might not notify of some document insertions, and that
might reasonably confuse layout if it has started before.
The reason we don't have more similar crashes seems to be two different
things:
* That in the crashtest, the custom element triggers a partial parser
flush via the innerHTML setter while the parser is creating the
element. That causes the parser to flush the previous text node
(which tells layout to go look under the <body> for children) but
unless we FlushTags() once we're done we won't know about the
custom-element child.
* That there's no end tag for the <body> or <html> nodes, so we don't
reach this code when we end them:
https://searchfox.org/mozilla-central/rev/df23c6e58c6be1eb8399e475878f73d4867bef87/dom/xml/nsXMLContentSink.cpp#1041-1047
Differential Revision: https://phabricator.services.mozilla.com/D106421
This changes the way we deal with page use counters so that we can
handle out of process iframes.
Currently, when a parent document is being destroyed, we poke into all
of the sub-documents to merge their use counters into the parent's page
use counters, which we then report via Telemetry. With Fission enabled,
the sub-documents may be out of process. We can't simply turn these
into async IPC calls, since the parent document will be destroyed
shortly, as might the content processes holding the sub-documents.
So instead, each document during its initialization identifies which
ancestor document it will contribute its page use counters to, and
stores its WindowContext id to identify that ancestor. A message is
sent to the parent process to notify it that page use counter data will
be sent at some later point. That later point is when the document
loses its window. It doesn't matter if the ancestor document has
already been destroyed at this point, since all we need is its
WindowContext id to uniquely identify it. Once the parent process has
received all of the use counters it expects to accumulate to a given
WindowContext Id, it reports them via Telemetry.
Reporting of document use counters remains unchanged and is done by each
document in their content process.
While we're here, we also:
* Limit use counters to be reported for a pre-defined set of document
URL schemes, rather than be based on the document principal.
* Add proper MOZ_LOG logging for use counters instead of printfs.
Differential Revision: https://phabricator.services.mozilla.com/D87188
Unlike other engine vendors, we process meta elements
at parser, instead of when they are inserted. This
leads some web compact issues.
This patch aligns us with other vendors.
Differential Revision: https://phabricator.services.mozilla.com/D84545
Which is the spec term. nsIStyleSheetLinkingElement is even more
confusing since it may not be an element at all (see: processing
instructions).
Differential Revision: https://phabricator.services.mozilla.com/D76071
The inclusions were removed with the following very crude script and the
resulting breakage was fixed up by hand. The manual fixups did either
revert the changes done by the script, replace a generic header with a more
specific one or replace a header with a forward declaration.
find . -name "*.idl" | grep -v web-platform | grep -v third_party | while read path; do
interfaces=$(grep "^\(class\|interface\).*:.*" "$path" | cut -d' ' -f2)
if [ -n "$interfaces" ]; then
if [[ "$interfaces" == *$'\n'* ]]; then
regexp="\("
for i in $interfaces; do regexp="$regexp$i\|"; done
regexp="${regexp%%\\\|}\)"
else
regexp="$interfaces"
fi
interface=$(basename "$path")
rg -l "#include.*${interface%%.idl}.h" . | while read path2; do
hits=$(grep -v "#include.*${interface%%.idl}.h" "$path2" | grep -c "$regexp" )
if [ $hits -eq 0 ]; then
echo "Removing ${interface} from ${path2}"
grep -v "#include.*${interface%%.idl}.h" "$path2" > "$path2".tmp
mv -f "$path2".tmp "$path2"
fi
done
fi
done
Differential Revision: https://phabricator.services.mozilla.com/D55442
--HG--
extra : moz-landing-system : lando
The inclusions were removed with the following very crude script and the
resulting breakage was fixed up by hand. The manual fixups did either
revert the changes done by the script, replace a generic header with a more
specific one or replace a header with a forward declaration.
find . -name "*.idl" | grep -v web-platform | grep -v third_party | while read path; do
interfaces=$(grep "^\(class\|interface\).*:.*" "$path" | cut -d' ' -f2)
if [ -n "$interfaces" ]; then
if [[ "$interfaces" == *$'\n'* ]]; then
regexp="\("
for i in $interfaces; do regexp="$regexp$i\|"; done
regexp="${regexp%%\\\|}\)"
else
regexp="$interfaces"
fi
interface=$(basename "$path")
rg -l "#include.*${interface%%.idl}.h" . | while read path2; do
hits=$(grep -v "#include.*${interface%%.idl}.h" "$path2" | grep -c "$regexp" )
if [ $hits -eq 0 ]; then
echo "Removing ${interface} from ${path2}"
grep -v "#include.*${interface%%.idl}.h" "$path2" > "$path2".tmp
mv -f "$path2".tmp "$path2"
fi
done
fi
done
Differential Revision: https://phabricator.services.mozilla.com/D55442
--HG--
extra : moz-landing-system : lando
The remaining notification methods are moved in a separate commit. The
files are renamed to `MutationObservers.*` in a follow-up commit.
Depends on D51824
Differential Revision: https://phabricator.services.mozilla.com/D51825
--HG--
extra : moz-landing-system : lando
The session restore page keeps its restore list within a text input field
so that the values are persisted even if the page is refreshed. When form
elements were loaded with the prototype cache we didn't call
DoneCreatingElement after creating the element, which means the form values
weren't restored.
The list of elements that require DoneCreatingElement and DoneAddingChildren
to be called was in three (now four) different places, so I moved them to
a central spot in nsIContent to share in all locations. This also highlighted
that the check for <output> nodes is missing from the XML content sink.
Differential Revision: https://phabricator.services.mozilla.com/D44866
--HG--
extra : moz-landing-system : lando
The session restore page keeps its restore list within a text input field
so that the values are persisted even if the page is refreshed. When form
elements were loaded with the prototype cache we didn't call
DoneCreatingElement after creating the element, which means the form values
weren't restored.
The list of elements that require DoneCreatingElement and DoneAddingChildren
to be called was in three (now four) different places, so I moved them to
a central spot in nsIContent to share in all locations. This also highlighted
that the check for <output> nodes is missing from the XML content sink.
Differential Revision: https://phabricator.services.mozilla.com/D44866
--HG--
extra : moz-landing-system : lando
nsContentSink used to decide that it was fine to not notify of silent appends to
a document from the parser if the node was not on our document already.
That's not ok, since if styling or layout have happened already on the document
we're getting inserted into nobody notices them, which is wrong.
Differential Revision: https://phabricator.services.mozilla.com/D25300
--HG--
extra : moz-landing-system : lando
Summary: Really sorry for the size of the patch. It's mostly automatic
s/nsIDocument/Document/ but I had to fix up in a bunch of places manually to
add the right namespacing and such.
Overall it's not a very interesting patch I think.
nsDocument.cpp turns into Document.cpp, nsIDocument.h into Document.h and
nsIDocumentInlines.h into DocumentInlines.h.
I also changed a bunch of nsCOMPtr usage to RefPtr, but not all of it.
While fixing up some of the bits I also removed some unneeded OwnerDoc() null
checks and such, but I didn't do anything riskier than that.
This is a big step in order to merge both.
Also allows to remove some very silly casts, though it causes us to add some
ToSupports around to deal with ambiguity of casts from nsIDocument to
nsISupports, and add a dummy nsISupports implementation that will go away later
in the series.
Differential Revision: https://phabricator.services.mozilla.com/D15352
mObservers is a nsTObserverArray which is infallible, so no need to
check the return value from AppendElementUnlessExists
(which a later patch in this series will remove).
