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Convert dom/base/nsImageLoadingContent.cpp to use AsyncOpen2 and followups along with it (1445670 and 1373780 part 2 and 3)

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Convert dom/base/nsImageLoadingContent.cpp to use AsyncOpen2 and followups along with it (1445670 and 1373780 part 2 and 3)
This commit is contained in:
win7-7 2019-08-08 16:44:51 +03:00 • committed by Roy Tam
commit e6f376f5ef
12 changed files with 130 additions and 79 deletions
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22
dom/base/nsDocument.cpp
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@ -9222,19 +9222,23 @@ already_AddRefed<nsIURI>
nsDocument::ResolvePreloadImage(nsIURI *aBaseURI,
const nsAString& aSrcAttr,
const nsAString& aSrcsetAttr,
const nsAString& aSizesAttr)
const nsAString& aSizesAttr,
bool *aIsImgSet)
{
nsString sourceURL;
bool isImgSet;
if (mPreloadPictureDepth == 1 && !mPreloadPictureFoundSource.IsVoid()) {
// We're in a <picture> element and found a URI from a source previous to
// this image, use it.
sourceURL = mPreloadPictureFoundSource;
isImgSet = true;
} else {
// Otherwise try to use this <img> as a source
HTMLImageElement::SelectSourceForTagWithAttrs(this, false, aSrcAttr,
aSrcsetAttr, aSizesAttr,
NullString(), NullString(),
sourceURL);
isImgSet = !aSrcsetAttr.IsEmpty();
}
// Empty sources are not loaded by <img> (i.e. not resolved to the baseURI)
@ -9252,6 +9256,8 @@ nsDocument::ResolvePreloadImage(nsIURI *aBaseURI,
return nullptr;
}
*aIsImgSet = isImgSet;
// We don't clear mPreloadPictureFoundSource because subsequent <img> tags in
// this this <picture> share the same <sources> (though this is not valid per
// spec)
@ -9260,16 +9266,12 @@ nsDocument::ResolvePreloadImage(nsIURI *aBaseURI,
void
nsDocument::MaybePreLoadImage(nsIURI* uri, const nsAString &aCrossOriginAttr,
ReferrerPolicy aReferrerPolicy)
ReferrerPolicy aReferrerPolicy, bool aIsImgSet)
{
// Early exit if the img is already present in the img-cache
// which indicates that the "real" load has already started and
// that we shouldn't preload it.
int16_t blockingStatus;
if (nsContentUtils::IsImageInCache(uri, static_cast<nsIDocument *>(this)) ||
!nsContentUtils::CanLoadImage(uri, static_cast<nsIDocument *>(this),
this, NodePrincipal(), &blockingStatus,
nsIContentPolicy::TYPE_INTERNAL_IMAGE_PRELOAD)) {
if (nsContentUtils::IsImageInCache(uri, static_cast<nsIDocument *>(this))) {
return;
}
@ -9288,6 +9290,10 @@ nsDocument::MaybePreLoadImage(nsIURI* uri, const nsAString &aCrossOriginAttr,
MOZ_CRASH("Unknown CORS mode!");
}
nsContentPolicyType policyType =
aIsImgSet ? nsIContentPolicy::TYPE_IMAGESET :
nsIContentPolicy::TYPE_INTERNAL_IMAGE_PRELOAD;
// Image not in cache - trigger preload
RefPtr<imgRequestProxy> request;
nsresult rv =
@ -9301,7 +9307,7 @@ nsDocument::MaybePreLoadImage(nsIURI* uri, const nsAString &aCrossOriginAttr,
loadFlags,
NS_LITERAL_STRING("img"),
getter_AddRefs(request),
nsIContentPolicy::TYPE_INTERNAL_IMAGE_PRELOAD);
policyType);
// Pin image-reference to avoid evicting it from the img-cache before
// the "real" load occurs. Unpinned in DispatchContentLoadedEvents and