This adds a new implementation of nsISHEntry
(mozilla::dom::SessionHistoryEntry). When session history in the parent
is turned on, we'll instantiate the existing nsSHistory in the parent
process, but it will store entries of this new type. The nsSHistory in
the child process will also be instantiated for now, to avoid breaking
too many assumptions, and we try to keep parent and child
implementations in sync.
mozilla::dom::SessionHistoryEntry stores most of its data in a new
structure (mozilla::dom::SessionHistoryInfo) which can be sent over IPC.
When a load starts through the DocumentChannel we create an entry of
this new type for it in the parent process in
DocumentLoadListener::Open. The SessionHistoryInfo for that entry (with
an associated ID) is then sent over IPC in the RedirectToRealChannelArgs
to the process that does the actual load, where we store it in the
nsDocShell in mLoadingEntry (and mLoadingEntryId). The parent process
keeps track of outstanding loading entries in an array (mLoadingEntries)
in the CanonicalBrowsingContext. When a load finishes the nsDocShell
transfers mLoadingEntry into mActiveEntry, and notifies the parent
process through an IPC message (HistoryCommit) with the id of that
entry. The CanonicalBrowsingContext then removes the entry from the
array and stores it in its mActiveEntry, and adds the entry to the
nsSHistory object.
There are a number of things in this patch that are broken, and a lot of
FIXME comments. However, with the pref turned off things should just be
working as before. The goal is to land this first part, and then iterate
on the new implementation until we can switch over.
Differential Revision: https://phabricator.services.mozilla.com/D65329
Both the deprecated `Screen.lockOrientation` and replacement
`ScreenOrientation.lock` APIs have been updated to make use of a new
`OrientationLock` field on the `BrowsingContext`. This replaces the
storage and use of APIs for this on the root docshell.
In the non fission case things should behave the same, as pending
promises for previous calls to `Screen.lockOrientation` will still be
cancelled in process. If there are `BrowsingContext`s in other
processes though, IPC will be sent to the parent, and then each other
child to cancel them. This should be spec compliant as the spec is
already racy with regards to multiple `lockOrientation` calls.
This new implementation has a little extra IPC than the optimal
implementation would since the root `BrowsingContext`s
`OrientationLock` is set using the normal `SyncedContext` machinery,
rather than combining the `AbortOtherOrientationPendingPromises`
message for a single message.
This commit fixes both Bug 1597413 and Bug 1597443.
Differential Revision: https://phabricator.services.mozilla.com/D70416
Implemecurnt a flag `suspendMediaWhenInactive` on the docShell that indicates media in that shell should be suspended when the shell is inactive. Currently, only GeckoView is using this flag.
---
The reason of implementing this flag is because in bug1577890 we remove the old way to suspend/resume the media, and I thought setting docshell to inactive is enough to suspend the media because we already have a mechanism which would suspend/resume media when document becomes inactive/active [1].
However, the active state of document is actually different from what I thought it was. Setting docshell to inactive won't change the document's active state, because that indicates if the document is the current active document for the docshell [2] (docshell can have multiple documents), instead of indicating if the docshell is active or not.
Therefore, we have to add another flag to indicate if the docshell wants to suspend its media when it's inactive, in order to use current mechanism to suspend/resume media.
[1] https://searchfox.org/mozilla-central/rev/4d2a9d5dc8f0e65807ee66e2b04c64596c643b7a/dom/html/HTMLMediaElement.cpp#6453
[2] https://searchfox.org/mozilla-central/rev/4d2a9d5dc8f0e65807ee66e2b04c64596c643b7a/dom/base/Document.h#2627-2633
Differential Revision: https://phabricator.services.mozilla.com/D69669
Before 1496578, URIFixup::keywordToURI used to do a synchronous IPC call to be
able to access search engines from the content process. Consumers of URIFixup
didn't care. Bug 1496578 moved the IPC messaging to the callers, in particular
nsDocShell, but assumed nsDocShellLoadState wasn't loading from content.
It looks like in some cases it does, so this adds another sync IPC call for
GetFixupURIInfo.
The total numer of sync IPCs should not change from before Bug 1496578, URIFIxup
was just doing it internally, while now it happens at the call point.
Note the long term plan would be for these docshell objects callers to just
handle URIs, while the UI code should do fixup.
Bug 1375244 tracks the removal of these sync IPC messages.
Differential Revision: https://phabricator.services.mozilla.com/D70607
Implemecurnt a flag `suspendMediaWhenInactive` on the docShell that indicates media in that shell should be suspended when the shell is inactive. Currently, only GeckoView is using this flag.
---
The reason of implementing this flag is because in bug1577890 we remove the old way to suspend/resume the media, and I thought setting docshell to inactive is enough to suspend the media because we already have a mechanism which would suspend/resume media when document becomes inactive/active [1].
However, the active state of document is actually different from what I thought it was. Setting docshell to inactive won't change the document's active state, because that indicates if the document is the current active document for the docshell [2] (docshell can have multiple documents), instead of indicating if the docshell is active or not.
Therefore, we have to add another flag to indicate if the docshell wants to suspend its media when it's inactive, in order to use current mechanism to suspend/resume media.
[1] https://searchfox.org/mozilla-central/rev/4d2a9d5dc8f0e65807ee66e2b04c64596c643b7a/dom/html/HTMLMediaElement.cpp#6453
[2] https://searchfox.org/mozilla-central/rev/4d2a9d5dc8f0e65807ee66e2b04c64596c643b7a/dom/base/Document.h#2627-2633
Differential Revision: https://phabricator.services.mozilla.com/D69669
This fixes the content policy type for document loads in these frames, where
the explicit mIsFrame flag was not set, due to DocShell creation taking a
different code path in remote frames than in in-process frames.
Differential Revision: https://phabricator.services.mozilla.com/D52093
This fixes the content policy type for document loads in these frames, where
the explicit mIsFrame flag was not set, due to DocShell creation taking a
different code path in remote frames than in in-process frames.
Differential Revision: https://phabricator.services.mozilla.com/D52093
Also move MOZ_MUST_USE before function declarations' specifiers and return type. While clang and gcc's __attribute__((warn_unused_result)) can appear before, between, or after function specifiers and return types, the [[nodiscard]] attribute must precede the function specifiers.
I also needed to wrap the nsDocLoader::RemoveChildLoader() function declaration with // clang-format off and // clang-format on. clang-format insists on indenting the function declaration because it is confused by the NS_DECL_ macros without trailing semicolons before the [[nodiscard]] attribute.
Differential Revision: https://phabricator.services.mozilla.com/D70478
These properties used to be passed to newly created content windows in many
different ways, but are now unified under nsOpenWindowInfo. This patch cleans up
the remaining properties.
Differential Revision: https://phabricator.services.mozilla.com/D67056
This also moves nsDocShell's implementation of nsILoadContext to be based on its
BrowsingContext.
This patch does not, by itself, fix all places which try to mutate
`nsILoadContext`. Those are fixed by the other parts of this patch stack.
Differential Revision: https://phabricator.services.mozilla.com/D67045
TabGroup never really made any difference in which thread something go
dispatched to. This was the intended use, but development of TabGroups
with abstract main threads never made it that far. The good thing is
that thish makes it safe to also remove to the SystemGroup and instead
switch all SystemGroup dispatches to dispatches to main thread.
Timers for setTimeout and workers were the sole users of wrapped and
throttled event targets, that those throttled queues have been moved
to the BrowsingContextGroup and are now accessed explicitly.
The SchedulerEventTarget has been removed, since there are no longer a
separate event target for every TaskCategory. Instead a
LabellingEventTarget has been added to DocGroup to handle the case
where an event is dispatched do DocGroup or when an AbstractThread is
created using a DocGroup. This means that we'll actually label more
events correctly with the DocGroup that they belong to.
DocGroups have also been moved to BrowsingContextGroup.
Depends on D67636
Differential Revision: https://phabricator.services.mozilla.com/D65936
By having CollectPerformanceInfo traverse the BrowsingContextGroup and
tree of BrowsingContexts we can hide the task of getting the DocGroups
befind an API in BrowsingContextGroup and ease the removal of
TabGroups.
Differential Revision: https://phabricator.services.mozilla.com/D64390
These properties used to be passed to newly created content windows in many
different ways, but are now unified under nsOpenWindowInfo. This patch cleans up
the remaining properties.
Differential Revision: https://phabricator.services.mozilla.com/D67056
This also moves nsDocShell's implementation of nsILoadContext to be based on its
BrowsingContext.
This patch does not, by itself, fix all places which try to mutate
`nsILoadContext`. Those are fixed by the other parts of this patch stack.
Differential Revision: https://phabricator.services.mozilla.com/D67045
It's only used to check whether the docshell is gone already, and we need to
deal with that in other places anyway. No other useful implementation.
In comm-central there are a couple, but they're useless too.
Differential Revision: https://phabricator.services.mozilla.com/D68731
It's unused (modulo assertions that mask it off), and I want to add something
similar for bug 1528305, so this avoids some confusion.
Differential Revision: https://phabricator.services.mozilla.com/D68456
