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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsHtml5SpeculativeLoad.h"
#include "mozilla/Encoding.h"
#include "nsHtml5TreeOpExecutor.h"
using namespace mozilla;
nsHtml5SpeculativeLoad::nsHtml5SpeculativeLoad()
: mOpCode(eSpeculativeLoadUninitialized),
mIsAsync(false),
mIsDefer(false),
mIsLinkPreload(false),
mIsError(false),
mEncoding(nullptr) {
MOZ_COUNT_CTOR(nsHtml5SpeculativeLoad);
new (&mCharsetOrSrcset) nsString;
}
nsHtml5SpeculativeLoad::~nsHtml5SpeculativeLoad() {
MOZ_COUNT_DTOR(nsHtml5SpeculativeLoad);
NS_ASSERTION(mOpCode != eSpeculativeLoadUninitialized,
"Uninitialized speculative load.");
if (!(mOpCode == eSpeculativeLoadSetDocumentCharset ||
mOpCode == eSpeculativeLoadMaybeComplainAboutCharset)) {
mCharsetOrSrcset.~nsString();
}
}
void nsHtml5SpeculativeLoad::Perform(nsHtml5TreeOpExecutor* aExecutor) {
switch (mOpCode) {
case eSpeculativeLoadBase:
aExecutor->SetSpeculationBase(mUrlOrSizes);
break;
case eSpeculativeLoadCSP:
aExecutor->AddSpeculationCSP(
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity);
break;
case eSpeculativeLoadMetaReferrer:
aExecutor->UpdateReferrerInfoFromMeta(mReferrerPolicyOrIntegrity);
break;
case eSpeculativeLoadImage:
aExecutor->PreloadImage(
mUrlOrSizes, mCrossOrigin, mMedia, mCharsetOrSrcset,
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity,
mReferrerPolicyOrIntegrity, mIsLinkPreload);
break;
case eSpeculativeLoadOpenPicture:
aExecutor->PreloadOpenPicture();
break;
case eSpeculativeLoadEndPicture:
aExecutor->PreloadEndPicture();
break;
case eSpeculativeLoadPictureSource:
aExecutor->PreloadPictureSource(
mCharsetOrSrcset, mUrlOrSizes,
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity,
mMedia);
break;
case eSpeculativeLoadScript:
aExecutor->PreloadScript(
mUrlOrSizes, mCharsetOrSrcset,
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity,
mCrossOrigin, mMedia, mNonce, mFetchPriority,
mReferrerPolicyOrIntegrity, mScriptReferrerPolicy, false, mIsAsync,
mIsDefer, mIsLinkPreload);
break;
case eSpeculativeLoadScriptFromHead:
aExecutor->PreloadScript(
mUrlOrSizes, mCharsetOrSrcset,
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity,
mCrossOrigin, mMedia, mNonce, mFetchPriority,
mReferrerPolicyOrIntegrity, mScriptReferrerPolicy, true, mIsAsync,
mIsDefer, mIsLinkPreload);
break;
case eSpeculativeLoadStyle:
aExecutor->PreloadStyle(
mUrlOrSizes, mCharsetOrSrcset, mCrossOrigin, mMedia,
mReferrerPolicyOrIntegrity, mNonce,
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity,
mIsLinkPreload, mFetchPriority);
break;
case eSpeculativeLoadManifest:
// TODO: remove this
break;
case eSpeculativeLoadSetDocumentCharset: {
MOZ_ASSERT(mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity
.Length() == 1,
"Unexpected charset source string");
nsCharsetSource enumSource =
(nsCharsetSource)
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity
.First();
aExecutor->SetDocumentCharsetAndSource(WrapNotNull(mEncoding),
enumSource);
if (mCommitEncodingSpeculation) {
aExecutor->CommitToInternalEncoding();
}
} break;
case eSpeculativeLoadSetDocumentMode: {
NS_ASSERTION(mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity
.Length() == 1,
"Unexpected document mode string");
nsHtml5DocumentMode mode =
(nsHtml5DocumentMode)
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity
.First();
aExecutor->SetDocumentMode(mode);
} break;
case eSpeculativeLoadPreconnect:
aExecutor->Preconnect(mUrlOrSizes, mCrossOrigin);
break;
case eSpeculativeLoadFont:
aExecutor->PreloadFont(mUrlOrSizes, mCrossOrigin, mMedia,
mReferrerPolicyOrIntegrity, mFetchPriority);
break;
case eSpeculativeLoadFetch:
aExecutor->PreloadFetch(mUrlOrSizes, mCrossOrigin, mMedia,
mReferrerPolicyOrIntegrity, mFetchPriority);
break;
case eSpeculativeLoadMaybeComplainAboutCharset: {
MOZ_ASSERT(mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity
.Length() == 2,
"Unexpected line number string");
uint32_t high =
(uint32_t)
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity
.CharAt(0);
uint32_t low =
(uint32_t)
mTypeOrCharsetSourceOrDocumentModeOrMetaCSPOrSizesOrIntegrity
.CharAt(1);
uint32_t line = (high << 16) | low;
aExecutor->MaybeComplainAboutCharset(mMsgId, mIsError, (int32_t)line);
} break;
default:
MOZ_ASSERT_UNREACHABLE("Bogus speculative load.");
break;
}
}