зеркало из https://github.com/mozilla/gecko-dev.git
116 строки
3.7 KiB
C++
116 строки
3.7 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef PreloadHashKey_h__
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#define PreloadHashKey_h__
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#include "mozilla/CORSMode.h"
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#include "mozilla/css/SheetParsingMode.h"
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#include "mozilla/dom/ReferrerPolicyBinding.h"
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#include "mozilla/dom/ScriptKind.h"
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#include "nsURIHashKey.h"
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class nsIPrincipal;
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namespace mozilla {
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namespace css {
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class SheetLoadData;
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}
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/**
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* This key is used for coalescing and lookup of preloading or regular
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* speculative loads. It consists of:
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* - the resource type, which is the value of the 'as' attribute
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* - the URI of the resource
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* - set of attributes that is common to all resource types
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* - resource-type-specific attributes that we use to distinguish loads that has
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* to be treated separately, some of these attributes may remain at their
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* default values
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*/
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class PreloadHashKey : public nsURIHashKey {
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public:
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enum class ResourceType : uint8_t { NONE, SCRIPT, STYLE, IMAGE, FONT, FETCH };
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typedef PreloadHashKey* KeyType;
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typedef const PreloadHashKey* KeyTypePointer;
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PreloadHashKey() = default;
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PreloadHashKey(const nsIURI* aKey, ResourceType aAs);
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explicit PreloadHashKey(const PreloadHashKey* aKey);
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PreloadHashKey(PreloadHashKey&& aToMove);
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PreloadHashKey& operator=(const PreloadHashKey& aOther);
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// Construct key for "script"
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static PreloadHashKey CreateAsScript(
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nsIURI* aURI, const CORSMode& aCORSMode,
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const dom::ScriptKind& aScriptKind,
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const dom::ReferrerPolicy& aReferrerPolicy);
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static PreloadHashKey CreateAsScript(
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nsIURI* aURI, const nsAString& aCrossOrigin, const nsAString& aType,
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const dom::ReferrerPolicy& aReferrerPolicy);
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// Construct key for "style"
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static PreloadHashKey CreateAsStyle(nsIURI* aURI, nsIPrincipal* aPrincipal,
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dom::ReferrerPolicy aReferrerPolicy,
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CORSMode aCORSMode,
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css::SheetParsingMode aParsingMode);
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static PreloadHashKey CreateAsStyle(css::SheetLoadData&);
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// Construct key for "image"
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static PreloadHashKey CreateAsImage(
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nsIURI* aURI, nsIPrincipal* aPrincipal, CORSMode aCORSMode,
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dom::ReferrerPolicy const& aReferrerPolicy);
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// Construct key for "fetch"
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static PreloadHashKey CreateAsFetch(
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nsIURI* aURI, const CORSMode aCORSMode,
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const dom::ReferrerPolicy& aReferrerPolicy);
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static PreloadHashKey CreateAsFetch(
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nsIURI* aURI, const nsAString& aCrossOrigin,
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const dom::ReferrerPolicy& aReferrerPolicy);
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// Construct key for "font"
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static PreloadHashKey CreateAsFont(
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nsIURI* aURI, const CORSMode aCORSMode,
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const dom::ReferrerPolicy& aReferrerPolicy);
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KeyType GetKey() const { return const_cast<PreloadHashKey*>(this); }
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KeyTypePointer GetKeyPointer() const { return this; }
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static KeyTypePointer KeyToPointer(KeyType aKey) { return aKey; }
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bool KeyEquals(KeyTypePointer aOther) const;
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static PLDHashNumber HashKey(KeyTypePointer aKey);
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#ifdef MOZILLA_INTERNAL_API
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size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const {
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// Bug 1627752
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return 0;
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}
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#endif
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enum { ALLOW_MEMMOVE = true };
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private:
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// Attributes common to all resource types
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ResourceType mAs = ResourceType::NONE;
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CORSMode mCORSMode = CORS_NONE;
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enum dom::ReferrerPolicy mReferrerPolicy = dom::ReferrerPolicy::_empty;
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nsCOMPtr<nsIPrincipal> mPrincipal;
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struct {
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dom::ScriptKind mScriptKind = dom::ScriptKind::eClassic;
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} mScript;
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struct {
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css::SheetParsingMode mParsingMode = css::eAuthorSheetFeatures;
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} mStyle;
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};
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} // namespace mozilla
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#endif
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