forked from mirrors/gecko-dev
1925 lines
65 KiB
C++
1925 lines
65 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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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/* representation of simple property values within CSS declarations */
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#ifndef nsCSSValue_h___
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#define nsCSSValue_h___
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#include "mozilla/Attributes.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/ServoTypes.h"
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#include "mozilla/SheetType.h"
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#include "mozilla/StyleComplexColor.h"
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#include "mozilla/URLExtraData.h"
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#include "mozilla/UniquePtr.h"
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#include "nsCSSKeywords.h"
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#include "nsCSSPropertyID.h"
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#include "nsCSSProps.h"
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#include "nsColor.h"
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#include "nsCoord.h"
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#include "nsProxyRelease.h"
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#include "nsRefPtrHashtable.h"
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#include "nsString.h"
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#include "nsStringBuffer.h"
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#include "nsTArray.h"
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#include "nsStyleConsts.h"
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#include "nsStyleCoord.h"
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#include "gfxFontFamilyList.h"
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#include <type_traits>
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class imgRequestProxy;
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class nsAtom;
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class nsIContent;
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class nsIDocument;
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class nsIPrincipal;
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class nsIURI;
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class nsPresContext;
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template <class T>
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class nsPtrHashKey;
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struct RustString;
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namespace mozilla {
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class CSSStyleSheet;
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} // namespace mozilla
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// Deletes a linked list iteratively to avoid blowing up the stack (bug 456196).
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#define NS_CSS_DELETE_LIST_MEMBER(type_, ptr_, member_) \
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{ \
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type_ *cur = (ptr_)->member_; \
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(ptr_)->member_ = nullptr; \
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while (cur) { \
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type_ *dlm_next = cur->member_; \
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cur->member_ = nullptr; \
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delete cur; \
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cur = dlm_next; \
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} \
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}
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// Ditto, but use NS_RELEASE instead of 'delete' (bug 1221902).
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#define NS_CSS_NS_RELEASE_LIST_MEMBER(type_, ptr_, member_) \
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{ \
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type_ *cur = (ptr_)->member_; \
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(ptr_)->member_ = nullptr; \
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while (cur) { \
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type_ *dlm_next = cur->member_; \
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cur->member_ = nullptr; \
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NS_RELEASE(cur); \
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cur = dlm_next; \
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} \
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}
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// Clones a linked list iteratively to avoid blowing up the stack.
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// If it fails to clone the entire list then 'to_' is deleted and
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// we return null.
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#define NS_CSS_CLONE_LIST_MEMBER(type_, from_, member_, to_, args_) \
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{ \
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type_ *dest = (to_); \
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(to_)->member_ = nullptr; \
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for (const type_ *src = (from_)->member_; src; src = src->member_) { \
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type_ *clm_clone = src->Clone args_; \
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if (!clm_clone) { \
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delete (to_); \
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return nullptr; \
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} \
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dest->member_ = clm_clone; \
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dest = clm_clone; \
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} \
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}
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namespace mozilla {
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namespace css {
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struct URLValueData
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{
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protected:
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// Methods are not inline because using an nsIPrincipal means requiring
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// caps, which leads to REQUIRES hell, since this header is included all
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// over.
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// For both constructors aString must not be null.
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// For both constructors principal of aExtraData must not be null.
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// Construct with a base URI; this will create the actual URI lazily from
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// aString and aExtraData.
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URLValueData(const nsAString& aString,
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already_AddRefed<URLExtraData> aExtraData);
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URLValueData(ServoRawOffsetArc<RustString> aString,
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already_AddRefed<URLExtraData> aExtraData);
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// Construct with the actual URI.
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URLValueData(already_AddRefed<PtrHolder<nsIURI>> aURI,
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const nsAString& aString,
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already_AddRefed<URLExtraData> aExtraData);
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URLValueData(already_AddRefed<PtrHolder<nsIURI>> aURI,
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ServoRawOffsetArc<RustString> aString,
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already_AddRefed<URLExtraData> aExtraData);
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public:
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// Returns true iff all fields of the two URLValueData objects are equal.
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//
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// Only safe to call on the main thread, since this will call Equals on the
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// nsIURI and nsIPrincipal objects stored on the URLValueData objects.
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bool Equals(const URLValueData& aOther) const;
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// Returns true iff we know for sure, by comparing the mBaseURI pointer,
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// the specified url() value mString, and the mIsLocalRef, that these
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// two URLValueData objects represent the same computed url() value.
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//
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// Doesn't look at mReferrer or mOriginPrincipal.
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//
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// Safe to call from any thread.
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bool DefinitelyEqualURIs(const URLValueData& aOther) const;
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// Smae as DefinitelyEqualURIs but additionally compares the nsIPrincipal
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// pointers of the two URLValueData objects.
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bool DefinitelyEqualURIsAndPrincipal(const URLValueData& aOther) const;
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nsIURI* GetURI() const;
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bool IsLocalRef() const;
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bool HasRef() const;
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// This function takes a guess whether the URL has a fragment, by searching
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// for a hash character. It definitely returns false if we know it can't
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// have a fragment because it has no hash character.
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//
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// MightHaveRef can be used in any thread, whereas HasRef can only be used
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// in the main thread.
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bool MightHaveRef() const;
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(URLValueData)
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// When matching a url with mIsLocalRef set, resolve it against aURI;
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// Otherwise, ignore aURL and return mURL directly.
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already_AddRefed<nsIURI> ResolveLocalRef(nsIURI* aURI) const;
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already_AddRefed<nsIURI> ResolveLocalRef(nsIContent* aContent) const;
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// Serializes mURI as a computed URI value, taking into account mIsLocalRef
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// and serializing just the fragment if true.
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void GetSourceString(nsString& aRef) const;
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bool EqualsExceptRef(nsIURI* aURI) const;
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// Can only be called from the main thread. Returns this URL's UTF-16 representation,
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// converting and caching its value if necessary.
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const nsString& GetUTF16String() const;
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// Returns this URL's UTF-16 representation, converting if necessary.
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nsString GetUTF16StringForAnyThread() const;
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bool IsStringEmpty() const;
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private:
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// mURI stores the lazily resolved URI. This may be null if the URI is
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// invalid, even once resolved.
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mutable PtrHandle<nsIURI> mURI;
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public:
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RefPtr<URLExtraData> mExtraData;
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private:
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// Returns a substring based on mStrings.mRustString which should not be exposed
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// to external consumers.
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nsDependentCSubstring GetRustString() const;
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mutable bool mURIResolved;
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// mIsLocalRef is set when url starts with a U+0023 number sign(#) character.
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mutable Maybe<bool> mIsLocalRef;
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mutable Maybe<bool> mMightHaveRef;
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mutable union RustOrGeckoString {
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explicit RustOrGeckoString(const nsAString& aString)
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: mString(aString) {}
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explicit RustOrGeckoString(ServoRawOffsetArc<RustString> aString)
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: mRustString(aString) {}
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~RustOrGeckoString() {}
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nsString mString;
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mozilla::ServoRawOffsetArc<RustString> mRustString;
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} mStrings;
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mutable bool mUsingRustString;
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protected:
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// Only used by ImageValue. Declared up here because otherwise bindgen gets
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// confused by the non-standard-layout packing of the variable up into
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// URLValueData.
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bool mLoadedImage = false;
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virtual ~URLValueData();
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size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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private:
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URLValueData(const URLValueData& aOther) = delete;
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URLValueData& operator=(const URLValueData& aOther) = delete;
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friend struct ImageValue;
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};
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struct URLValue final : public URLValueData
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{
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// These two constructors are safe to call only on the main thread.
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URLValue(const nsAString& aString, nsIURI* aBaseURI, nsIURI* aReferrer,
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nsIPrincipal* aOriginPrincipal);
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URLValue(nsIURI* aURI, const nsAString& aString, nsIURI* aBaseURI,
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nsIURI* aReferrer, nsIPrincipal* aOriginPrincipal);
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// This constructor is safe to call from any thread.
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URLValue(const nsAString& aString,
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already_AddRefed<URLExtraData> aExtraData)
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: URLValueData(aString, Move(aExtraData)) {}
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URLValue(const URLValue&) = delete;
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URLValue& operator=(const URLValue&) = delete;
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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};
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struct ImageValue final : public URLValueData
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{
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static ImageValue* CreateFromURLValue(URLValue* url, nsIDocument* aDocument);
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// Not making the constructor and destructor inline because that would
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// force us to include imgIRequest.h, which leads to REQUIRES hell, since
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// this header is included all over.
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//
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// This constructor is only safe to call from the main thread.
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ImageValue(nsIURI* aURI, const nsAString& aString,
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already_AddRefed<URLExtraData> aExtraData,
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nsIDocument* aDocument);
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// This constructor is only safe to call from the main thread.
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ImageValue(nsIURI* aURI, ServoRawOffsetArc<RustString> aString,
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already_AddRefed<URLExtraData> aExtraData,
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nsIDocument* aDocument);
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// This constructor is safe to call from any thread, but Initialize
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// must be called later for the object to be useful.
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ImageValue(const nsAString& aString,
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already_AddRefed<URLExtraData> aExtraData);
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// This constructor is safe to call from any thread, but Initialize
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// must be called later for the object to be useful.
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ImageValue(ServoRawOffsetArc<RustString> aURIString,
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already_AddRefed<URLExtraData> aExtraData);
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ImageValue(const ImageValue&) = delete;
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ImageValue& operator=(const ImageValue&) = delete;
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void Initialize(nsIDocument* aDocument);
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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protected:
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~ImageValue();
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public:
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// Inherit Equals from URLValueData
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nsRefPtrHashtable<nsPtrHashKey<nsIDocument>, imgRequestProxy> mRequests;
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};
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struct GridNamedArea {
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nsString mName;
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uint32_t mColumnStart;
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uint32_t mColumnEnd;
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uint32_t mRowStart;
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uint32_t mRowEnd;
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};
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struct GridTemplateAreasValue final {
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// Parsed value
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nsTArray<GridNamedArea> mNamedAreas;
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// Original <string> values. Length gives the number of rows,
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// content makes serialization easier.
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nsTArray<nsString> mTemplates;
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// How many columns grid-template-areas contributes to the explicit grid.
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// http://dev.w3.org/csswg/css-grid/#explicit-grid
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uint32_t mNColumns;
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// How many rows grid-template-areas contributes to the explicit grid.
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// http://dev.w3.org/csswg/css-grid/#explicit-grid
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uint32_t NRows() const {
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return mTemplates.Length();
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}
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GridTemplateAreasValue()
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: mNColumns(0)
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// Default constructors for mNamedAreas and mTemplates: empty arrays.
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{
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}
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bool operator==(const GridTemplateAreasValue& aOther) const
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{
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return mTemplates == aOther.mTemplates;
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}
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bool operator!=(const GridTemplateAreasValue& aOther) const
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{
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return !(*this == aOther);
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}
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(GridTemplateAreasValue)
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size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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private:
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// Private destructor to make sure this isn't used as a stack variable
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// or member variable.
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~GridTemplateAreasValue()
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{
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}
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GridTemplateAreasValue(const GridTemplateAreasValue& aOther) = delete;
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GridTemplateAreasValue&
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operator=(const GridTemplateAreasValue& aOther) = delete;
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};
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struct RGBAColorData
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{
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// 1.0 means 100% for all components, but the value may fall outside
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// the range of [0.0, 1.0], so it is necessary to clamp them when
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// converting to nscolor.
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float mR;
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float mG;
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float mB;
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float mA;
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RGBAColorData() = default;
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MOZ_IMPLICIT RGBAColorData(nscolor aColor)
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: mR(NS_GET_R(aColor) * (1.0f / 255.0f))
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, mG(NS_GET_G(aColor) * (1.0f / 255.0f))
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, mB(NS_GET_B(aColor) * (1.0f / 255.0f))
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, mA(NS_GET_A(aColor) * (1.0f / 255.0f))
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{}
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RGBAColorData(float aR, float aG, float aB, float aA)
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: mR(aR), mG(aG), mB(aB), mA(aA) {}
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bool operator==(const RGBAColorData& aOther) const
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{
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return mR == aOther.mR && mG == aOther.mG &&
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mB == aOther.mB && mA == aOther.mA;
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}
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bool operator!=(const RGBAColorData& aOther) const
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{
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return !(*this == aOther);
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}
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nscolor ToColor() const
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{
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return NS_RGBA(ClampColor(mR * 255.0f),
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ClampColor(mG * 255.0f),
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ClampColor(mB * 255.0f),
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ClampColor(mA * 255.0f));
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}
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RGBAColorData WithAlpha(float aAlpha) const
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{
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RGBAColorData result = *this;
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result.mA = aAlpha;
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return result;
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}
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};
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struct ComplexColorData
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{
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RGBAColorData mColor;
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float mForegroundRatio;
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ComplexColorData() = default;
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ComplexColorData(const RGBAColorData& aColor, float aForegroundRatio)
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: mColor(aColor), mForegroundRatio(aForegroundRatio) {}
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ComplexColorData(nscolor aColor, float aForegroundRatio)
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: mColor(aColor), mForegroundRatio(aForegroundRatio) {}
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explicit ComplexColorData(const StyleComplexColor& aColor)
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: mColor(aColor.mColor)
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, mForegroundRatio(aColor.mForegroundRatio * (1.0f / 255.0f)) {}
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bool operator==(const ComplexColorData& aOther) const
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{
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return mForegroundRatio == aOther.mForegroundRatio &&
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(IsCurrentColor() || mColor == aOther.mColor);
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}
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bool operator!=(const ComplexColorData& aOther) const
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{
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return !(*this == aOther);
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}
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bool IsCurrentColor() const { return mForegroundRatio >= 1.0f; }
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bool IsNumericColor() const { return mForegroundRatio <= 0.0f; }
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StyleComplexColor ToComplexColor() const
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{
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return {mColor.ToColor(), ClampColor(mForegroundRatio * 255.0f)};
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}
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};
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struct ComplexColorValue final : public ComplexColorData
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{
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// Just redirect any parameter to the data struct.
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template<typename... Args>
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explicit ComplexColorValue(Args&&... aArgs)
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: ComplexColorData(Forward<Args>(aArgs)...) {}
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ComplexColorValue(const ComplexColorValue&) = delete;
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NS_INLINE_DECL_REFCOUNTING(ComplexColorValue)
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size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const;
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private:
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~ComplexColorValue() {}
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};
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} // namespace css
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} // namespace mozilla
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enum nsCSSUnit {
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eCSSUnit_Null = 0, // (n/a) null unit, value is not specified
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eCSSUnit_Auto = 1, // (n/a) value is algorithmic
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eCSSUnit_Inherit = 2, // (n/a) value is inherited
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eCSSUnit_Initial = 3, // (n/a) value is default UA value
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eCSSUnit_Unset = 4, // (n/a) value equivalent to 'initial' if on a reset property, 'inherit' otherwise
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eCSSUnit_None = 5, // (n/a) value is none
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eCSSUnit_Normal = 6, // (n/a) value is normal (algorithmic, different than auto)
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eCSSUnit_System_Font = 7, // (n/a) value is -moz-use-system-font
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eCSSUnit_All = 8, // (n/a) value is all
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eCSSUnit_Dummy = 9, // (n/a) a fake but specified value, used
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// only in temporary values
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eCSSUnit_DummyInherit = 10, // (n/a) a fake but specified value, used
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// only in temporary values
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eCSSUnit_String = 11, // (char16_t*) a string value
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eCSSUnit_Ident = 12, // (char16_t*) a string value
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eCSSUnit_Attr = 14, // (char16_t*) a attr(string) value
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eCSSUnit_Local_Font = 15, // (char16_t*) a local font name
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eCSSUnit_Font_Format = 16, // (char16_t*) a font format name
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eCSSUnit_Element = 17, // (char16_t*) an element id
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eCSSUnit_Array = 20, // (nsCSSValue::Array*) a list of values
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eCSSUnit_Counter = 21, // (nsCSSValue::Array*) a counter(string,[string]) value
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eCSSUnit_Counters = 22, // (nsCSSValue::Array*) a counters(string,string[,string]) value
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eCSSUnit_Cubic_Bezier = 23, // (nsCSSValue::Array*) a list of float values
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eCSSUnit_Steps = 24, // (nsCSSValue::Array*) a list of (integer, enumerated)
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eCSSUnit_Symbols = 25, // (nsCSSValue::Array*) a symbols(enumerated, symbols) value
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eCSSUnit_Function = 26, // (nsCSSValue::Array*) a function with
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// parameters. First elem of array is name,
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// an nsCSSKeyword as eCSSUnit_Enumerated,
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// the rest of the values are arguments.
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// The top level of a calc() expression is eCSSUnit_Calc. All
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// remaining eCSSUnit_Calc_* units only occur inside these toplevel
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// calc values.
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// eCSSUnit_Calc has an array with exactly 1 element. eCSSUnit_Calc
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// exists so we can distinguish calc(2em) from 2em as specified values
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// (but we drop this distinction for nsStyleCoord when we store
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// computed values).
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eCSSUnit_Calc = 30, // (nsCSSValue::Array*) calc() value
|
|
// Plus, Minus, Times_* and Divided have arrays with exactly 2
|
|
// elements. a + b + c + d is grouped as ((a + b) + c) + d
|
|
eCSSUnit_Calc_Plus = 31, // (nsCSSValue::Array*) + node within calc()
|
|
eCSSUnit_Calc_Minus = 32, // (nsCSSValue::Array*) - within calc
|
|
eCSSUnit_Calc_Times_L = 33, // (nsCSSValue::Array*) num * val within calc
|
|
eCSSUnit_Calc_Times_R = 34, // (nsCSSValue::Array*) val * num within calc
|
|
eCSSUnit_Calc_Divided = 35, // (nsCSSValue::Array*) / within calc
|
|
|
|
eCSSUnit_URL = 40, // (nsCSSValue::URL*) value
|
|
eCSSUnit_Image = 41, // (nsCSSValue::Image*) value
|
|
eCSSUnit_Gradient = 42, // (nsCSSValueGradient*) value
|
|
eCSSUnit_TokenStream = 43, // (nsCSSValueTokenStream*) value
|
|
eCSSUnit_GridTemplateAreas = 44, // (GridTemplateAreasValue*)
|
|
// for grid-template-areas
|
|
|
|
eCSSUnit_Pair = 50, // (nsCSSValuePair*) pair of values
|
|
eCSSUnit_Triplet = 51, // (nsCSSValueTriplet*) triplet of values
|
|
eCSSUnit_Rect = 52, // (nsCSSRect*) rectangle (four values)
|
|
eCSSUnit_List = 53, // (nsCSSValueList*) list of values
|
|
eCSSUnit_ListDep = 54, // (nsCSSValueList*) same as List
|
|
// but does not own the list
|
|
eCSSUnit_SharedList = 55, // (nsCSSValueSharedList*) same as list
|
|
// but reference counted and shared
|
|
eCSSUnit_PairList = 56, // (nsCSSValuePairList*) list of value pairs
|
|
eCSSUnit_PairListDep = 57, // (nsCSSValuePairList*) same as PairList
|
|
// but does not own the list
|
|
|
|
eCSSUnit_FontFamilyList = 58, // (SharedFontList*) value
|
|
|
|
// Atom units
|
|
eCSSUnit_AtomIdent = 60, // (nsAtom*) for its string as an identifier
|
|
|
|
eCSSUnit_Integer = 70, // (int) simple value
|
|
eCSSUnit_Enumerated = 71, // (int) value has enumerated meaning
|
|
|
|
eCSSUnit_EnumColor = 80, // (int) enumerated color (kColorKTable)
|
|
eCSSUnit_RGBColor = 81, // (nscolor) an opaque RGBA value specified as rgb()
|
|
eCSSUnit_RGBAColor = 82, // (nscolor) an RGBA value specified as rgba()
|
|
eCSSUnit_HexColor = 83, // (nscolor) an opaque RGBA value specified as #rrggbb
|
|
eCSSUnit_ShortHexColor = 84, // (nscolor) an opaque RGBA value specified as #rgb
|
|
eCSSUnit_HexColorAlpha = 85, // (nscolor) an opaque RGBA value specified as #rrggbbaa
|
|
eCSSUnit_ShortHexColorAlpha = 86, // (nscolor) an opaque RGBA value specified as #rgba
|
|
eCSSUnit_PercentageRGBColor = 87, // (nsCSSValueFloatColor*) an opaque
|
|
// RGBA value specified as rgb() with
|
|
// percentage components. Values over
|
|
// 100% are allowed.
|
|
eCSSUnit_PercentageRGBAColor = 88, // (nsCSSValueFloatColor*) an RGBA value
|
|
// specified as rgba() with percentage
|
|
// components. Values over 100% are
|
|
// allowed.
|
|
eCSSUnit_HSLColor = 89, // (nsCSSValueFloatColor*)
|
|
eCSSUnit_HSLAColor = 90, // (nsCSSValueFloatColor*)
|
|
eCSSUnit_ComplexColor = 91, // (ComplexColorValue*)
|
|
|
|
eCSSUnit_Percent = 100, // (float) 1.0 == 100%) value is percentage of something
|
|
eCSSUnit_Number = 101, // (float) value is numeric (usually multiplier, different behavior than percent)
|
|
|
|
// Length units - relative
|
|
// Viewport relative measure
|
|
eCSSUnit_ViewportWidth = 700, // (float) 1% of the width of the initial containing block
|
|
eCSSUnit_ViewportHeight = 701, // (float) 1% of the height of the initial containing block
|
|
eCSSUnit_ViewportMin = 702, // (float) smaller of ViewportWidth and ViewportHeight
|
|
eCSSUnit_ViewportMax = 703, // (float) larger of ViewportWidth and ViewportHeight
|
|
|
|
// Font relative measure
|
|
eCSSUnit_EM = 800, // (float) == current font size
|
|
eCSSUnit_XHeight = 801, // (float) distance from top of lower case x to baseline
|
|
eCSSUnit_Char = 802, // (float) number of characters, used for width with monospace font
|
|
eCSSUnit_RootEM = 803, // (float) == root element font size
|
|
|
|
// Screen relative measure
|
|
eCSSUnit_Point = 900, // (float) 4/3 of a CSS pixel
|
|
eCSSUnit_Inch = 901, // (float) 96 CSS pixels
|
|
eCSSUnit_Millimeter = 902, // (float) 96/25.4 CSS pixels
|
|
eCSSUnit_Centimeter = 903, // (float) 96/2.54 CSS pixels
|
|
eCSSUnit_Pica = 904, // (float) 12 points == 16 CSS pixls
|
|
eCSSUnit_Quarter = 905, // (float) 96/101.6 CSS pixels
|
|
eCSSUnit_Pixel = 906, // (float) CSS pixel unit
|
|
|
|
// Angular units
|
|
eCSSUnit_Degree = 1000, // (float) 360 per circle
|
|
eCSSUnit_Grad = 1001, // (float) 400 per circle
|
|
eCSSUnit_Radian = 1002, // (float) 2*pi per circle
|
|
eCSSUnit_Turn = 1003, // (float) 1 per circle
|
|
|
|
// Frequency units
|
|
eCSSUnit_Hertz = 2000, // (float) 1/seconds
|
|
eCSSUnit_Kilohertz = 2001, // (float) 1000 Hertz
|
|
|
|
// Time units
|
|
eCSSUnit_Seconds = 3000, // (float) Standard time
|
|
eCSSUnit_Milliseconds = 3001, // (float) 1/1000 second
|
|
|
|
// Flexible fraction (CSS Grid)
|
|
eCSSUnit_FlexFraction = 4000 // (float) Fraction of free space
|
|
};
|
|
|
|
struct nsCSSValueGradient;
|
|
struct nsCSSValuePair;
|
|
struct nsCSSValuePair_heap;
|
|
struct nsCSSValueTokenStream;
|
|
struct nsCSSRect;
|
|
struct nsCSSRect_heap;
|
|
struct nsCSSValueList;
|
|
struct nsCSSValueList_heap;
|
|
struct nsCSSValueSharedList;
|
|
struct nsCSSValuePairList;
|
|
struct nsCSSValuePairList_heap;
|
|
struct nsCSSValueTriplet;
|
|
struct nsCSSValueTriplet_heap;
|
|
class nsCSSValueFloatColor;
|
|
|
|
class nsCSSValue {
|
|
public:
|
|
struct Array;
|
|
friend struct Array;
|
|
|
|
friend struct mozilla::css::URLValueData;
|
|
|
|
friend struct mozilla::css::ImageValue;
|
|
|
|
// for valueless units only (null, auto, inherit, none, all, normal)
|
|
explicit nsCSSValue(nsCSSUnit aUnit = eCSSUnit_Null)
|
|
: mUnit(aUnit)
|
|
{
|
|
MOZ_ASSERT(aUnit <= eCSSUnit_DummyInherit, "not a valueless unit");
|
|
}
|
|
|
|
nsCSSValue(int32_t aValue, nsCSSUnit aUnit);
|
|
nsCSSValue(float aValue, nsCSSUnit aUnit);
|
|
nsCSSValue(const nsString& aValue, nsCSSUnit aUnit);
|
|
nsCSSValue(Array* aArray, nsCSSUnit aUnit);
|
|
explicit nsCSSValue(mozilla::css::URLValue* aValue);
|
|
explicit nsCSSValue(mozilla::css::ImageValue* aValue);
|
|
explicit nsCSSValue(nsCSSValueGradient* aValue);
|
|
explicit nsCSSValue(nsCSSValueTokenStream* aValue);
|
|
explicit nsCSSValue(mozilla::css::GridTemplateAreasValue* aValue);
|
|
explicit nsCSSValue(mozilla::SharedFontList* aValue);
|
|
nsCSSValue(const nsCSSValue& aCopy);
|
|
nsCSSValue(nsCSSValue&& aOther)
|
|
: mUnit(aOther.mUnit)
|
|
, mValue(aOther.mValue)
|
|
{
|
|
aOther.mUnit = eCSSUnit_Null;
|
|
}
|
|
~nsCSSValue() { Reset(); }
|
|
|
|
nsCSSValue& operator=(const nsCSSValue& aCopy);
|
|
nsCSSValue& operator=(nsCSSValue&& aCopy);
|
|
bool operator==(const nsCSSValue& aOther) const;
|
|
|
|
bool operator!=(const nsCSSValue& aOther) const
|
|
{
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
/**
|
|
* Serialize |this| as a specified value for |aProperty| and append
|
|
* it to |aResult|.
|
|
*/
|
|
void AppendToString(nsCSSPropertyID aProperty, nsAString& aResult) const;
|
|
|
|
nsCSSUnit GetUnit() const { return mUnit; }
|
|
bool IsLengthUnit() const
|
|
{ return eCSSUnit_ViewportWidth <= mUnit && mUnit <= eCSSUnit_Pixel; }
|
|
bool IsLengthPercentCalcUnit() const
|
|
{ return IsLengthUnit() || mUnit == eCSSUnit_Percent || IsCalcUnit(); }
|
|
/**
|
|
* What the spec calls relative length units is, for us, split
|
|
* between relative length units and pixel length units.
|
|
*
|
|
* A "relative" length unit is a multiple of some derived metric,
|
|
* such as a font em-size, which itself was controlled by an input CSS
|
|
* length. Relative length units should not be scaled by zooming, since
|
|
* the underlying CSS length would already have been scaled.
|
|
*/
|
|
bool IsRelativeLengthUnit() const
|
|
{ return eCSSUnit_EM <= mUnit && mUnit <= eCSSUnit_RootEM; }
|
|
/**
|
|
* A "pixel" length unit is a some multiple of CSS pixels.
|
|
*/
|
|
static bool IsPixelLengthUnit(nsCSSUnit aUnit)
|
|
{ return eCSSUnit_Point <= aUnit && aUnit <= eCSSUnit_Pixel; }
|
|
bool IsPixelLengthUnit() const
|
|
{ return IsPixelLengthUnit(mUnit); }
|
|
static bool IsPercentLengthUnit(nsCSSUnit aUnit)
|
|
{ return aUnit == eCSSUnit_Percent; }
|
|
bool IsPercentLengthUnit()
|
|
{ return IsPercentLengthUnit(mUnit); }
|
|
static bool IsFloatUnit(nsCSSUnit aUnit)
|
|
{ return eCSSUnit_Number <= aUnit; }
|
|
bool IsAngularUnit() const
|
|
{ return eCSSUnit_Degree <= mUnit && mUnit <= eCSSUnit_Turn; }
|
|
bool IsFrequencyUnit() const
|
|
{ return eCSSUnit_Hertz <= mUnit && mUnit <= eCSSUnit_Kilohertz; }
|
|
bool IsTimeUnit() const
|
|
{ return eCSSUnit_Seconds <= mUnit && mUnit <= eCSSUnit_Milliseconds; }
|
|
bool IsCalcUnit() const
|
|
{ return eCSSUnit_Calc <= mUnit && mUnit <= eCSSUnit_Calc_Divided; }
|
|
|
|
bool UnitHasStringValue() const
|
|
{ return eCSSUnit_String <= mUnit && mUnit <= eCSSUnit_Element; }
|
|
bool UnitHasArrayValue() const
|
|
{ return eCSSUnit_Array <= mUnit && mUnit <= eCSSUnit_Calc_Divided; }
|
|
|
|
// Checks for the nsCSSValue being of a particular type of color unit:
|
|
//
|
|
// - IsIntegerColorUnit returns true for:
|
|
// eCSSUnit_RGBColor -- rgb(int,int,int)
|
|
// eCSSUnit_RGBAColor -- rgba(int,int,int,float)
|
|
// eCSSUnit_HexColor -- #rrggbb
|
|
// eCSSUnit_ShortHexColor -- #rgb
|
|
// eCSSUnit_HexColorAlpha -- #rrggbbaa
|
|
// eCSSUnit_ShortHexColorAlpha -- #rgba
|
|
//
|
|
// - IsFloatColorUnit returns true for:
|
|
// eCSSUnit_PercentageRGBColor -- rgb(%,%,%)
|
|
// eCSSUnit_PercentageRGBAColor -- rgba(%,%,%,float)
|
|
// eCSSUnit_HSLColor -- hsl(float,%,%)
|
|
// eCSSUnit_HSLAColor -- hsla(float,%,%,float)
|
|
//
|
|
// - IsNumericColorUnit returns true for any of the above units.
|
|
//
|
|
// Note that color keywords and system colors are represented by
|
|
// eCSSUnit_EnumColor and eCSSUnit_Ident.
|
|
bool IsIntegerColorUnit() const { return IsIntegerColorUnit(mUnit); }
|
|
bool IsFloatColorUnit() const { return IsFloatColorUnit(mUnit); }
|
|
bool IsNumericColorUnit() const { return IsNumericColorUnit(mUnit); }
|
|
static bool IsIntegerColorUnit(nsCSSUnit aUnit)
|
|
{ return eCSSUnit_RGBColor <= aUnit && aUnit <= eCSSUnit_ShortHexColorAlpha; }
|
|
static bool IsFloatColorUnit(nsCSSUnit aUnit)
|
|
{ return eCSSUnit_PercentageRGBColor <= aUnit &&
|
|
aUnit <= eCSSUnit_HSLAColor; }
|
|
static bool IsNumericColorUnit(nsCSSUnit aUnit)
|
|
{ return IsIntegerColorUnit(aUnit) || IsFloatColorUnit(aUnit); }
|
|
|
|
int32_t GetIntValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Integer ||
|
|
mUnit == eCSSUnit_Enumerated ||
|
|
mUnit == eCSSUnit_EnumColor,
|
|
"not an int value");
|
|
return mValue.mInt;
|
|
}
|
|
|
|
nsCSSKeyword GetKeywordValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Enumerated, "not a keyword value");
|
|
return static_cast<nsCSSKeyword>(mValue.mInt);
|
|
}
|
|
|
|
float GetPercentValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Percent, "not a percent value");
|
|
return mValue.mFloat;
|
|
}
|
|
|
|
float GetFloatValue() const
|
|
{
|
|
MOZ_ASSERT(eCSSUnit_Number <= mUnit, "not a float value");
|
|
MOZ_ASSERT(!mozilla::IsNaN(mValue.mFloat));
|
|
return mValue.mFloat;
|
|
}
|
|
|
|
float GetAngleValue() const
|
|
{
|
|
MOZ_ASSERT(eCSSUnit_Degree <= mUnit && mUnit <= eCSSUnit_Turn,
|
|
"not an angle value");
|
|
return mValue.mFloat;
|
|
}
|
|
|
|
// Converts any angle to radians.
|
|
double GetAngleValueInRadians() const;
|
|
|
|
// Converts any angle to degrees.
|
|
double GetAngleValueInDegrees() const;
|
|
|
|
nsAString& GetStringValue(nsAString& aBuffer) const
|
|
{
|
|
MOZ_ASSERT(UnitHasStringValue(), "not a string value");
|
|
aBuffer.Truncate();
|
|
uint32_t len = NS_strlen(GetBufferValue(mValue.mString));
|
|
mValue.mString->ToString(len, aBuffer);
|
|
return aBuffer;
|
|
}
|
|
|
|
const char16_t* GetStringBufferValue() const
|
|
{
|
|
MOZ_ASSERT(UnitHasStringValue(), "not a string value");
|
|
return GetBufferValue(mValue.mString);
|
|
}
|
|
|
|
nscolor GetColorValue() const;
|
|
bool IsNonTransparentColor() const;
|
|
mozilla::StyleComplexColor GetStyleComplexColorValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_ComplexColor);
|
|
return mValue.mComplexColor->ToComplexColor();
|
|
}
|
|
|
|
Array* GetArrayValue() const
|
|
{
|
|
MOZ_ASSERT(UnitHasArrayValue(), "not an array value");
|
|
return mValue.mArray;
|
|
}
|
|
|
|
nsIURI* GetURLValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_URL || mUnit == eCSSUnit_Image,
|
|
"not a URL value");
|
|
return mUnit == eCSSUnit_URL ?
|
|
mValue.mURL->GetURI() : mValue.mImage->GetURI();
|
|
}
|
|
|
|
nsCSSValueGradient* GetGradientValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Gradient, "not a gradient value");
|
|
return mValue.mGradient;
|
|
}
|
|
|
|
nsCSSValueTokenStream* GetTokenStreamValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_TokenStream, "not a token stream value");
|
|
return mValue.mTokenStream;
|
|
}
|
|
|
|
nsCSSValueSharedList* GetSharedListValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_SharedList, "not a shared list value");
|
|
return mValue.mSharedList;
|
|
}
|
|
|
|
mozilla::NotNull<mozilla::SharedFontList*> GetFontFamilyListValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_FontFamilyList,
|
|
"not a font family list value");
|
|
NS_ASSERTION(mValue.mFontFamilyList != nullptr,
|
|
"font family list value should never be null");
|
|
return mozilla::WrapNotNull(mValue.mFontFamilyList);
|
|
}
|
|
|
|
// bodies of these are below
|
|
inline nsCSSValuePair& GetPairValue();
|
|
inline const nsCSSValuePair& GetPairValue() const;
|
|
|
|
inline nsCSSRect& GetRectValue();
|
|
inline const nsCSSRect& GetRectValue() const;
|
|
|
|
inline nsCSSValueList* GetListValue();
|
|
inline const nsCSSValueList* GetListValue() const;
|
|
|
|
inline nsCSSValuePairList* GetPairListValue();
|
|
inline const nsCSSValuePairList* GetPairListValue() const;
|
|
|
|
inline nsCSSValueTriplet& GetTripletValue();
|
|
inline const nsCSSValueTriplet& GetTripletValue() const;
|
|
|
|
|
|
mozilla::css::URLValue* GetURLStructValue() const
|
|
{
|
|
// Not allowing this for Image values, because if the caller takes
|
|
// a ref to them they won't be able to delete them properly.
|
|
MOZ_ASSERT(mUnit == eCSSUnit_URL, "not a URL value");
|
|
return mValue.mURL;
|
|
}
|
|
|
|
mozilla::css::ImageValue* GetImageStructValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Image, "not an Image value");
|
|
return mValue.mImage;
|
|
}
|
|
|
|
mozilla::css::GridTemplateAreasValue* GetGridTemplateAreas() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_GridTemplateAreas,
|
|
"not a grid-template-areas value");
|
|
return mValue.mGridTemplateAreas;
|
|
}
|
|
|
|
const char16_t* GetOriginalURLValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_URL || mUnit == eCSSUnit_Image,
|
|
"not a URL value");
|
|
return mUnit == eCSSUnit_URL ?
|
|
mValue.mURL->GetUTF16String().get() :
|
|
mValue.mImage->GetUTF16String().get();
|
|
}
|
|
|
|
// Not making this inline because that would force us to include
|
|
// imgIRequest.h, which leads to REQUIRES hell, since this header is included
|
|
// all over.
|
|
imgRequestProxy* GetImageValue(nsIDocument* aDocument) const;
|
|
|
|
// Like GetImageValue, but additionally will pass the imgRequestProxy
|
|
// through nsContentUtils::GetStaticRequest if aPresContent is static.
|
|
already_AddRefed<imgRequestProxy> GetPossiblyStaticImageValue(
|
|
nsIDocument* aDocument, nsPresContext* aPresContext) const;
|
|
|
|
nscoord GetPixelLength() const;
|
|
|
|
nsCSSValueFloatColor* GetFloatColorValue() const
|
|
{
|
|
MOZ_ASSERT(IsFloatColorUnit(), "not a float color value");
|
|
return mValue.mFloatColor;
|
|
}
|
|
|
|
nsAtom* GetAtomValue() const {
|
|
MOZ_ASSERT(mUnit == eCSSUnit_AtomIdent);
|
|
return mValue.mAtom;
|
|
}
|
|
|
|
void Reset() // sets to null
|
|
{
|
|
if (mUnit != eCSSUnit_Null)
|
|
DoReset();
|
|
}
|
|
private:
|
|
void DoReset();
|
|
|
|
public:
|
|
void SetIntValue(int32_t aValue, nsCSSUnit aUnit);
|
|
template<typename T,
|
|
typename = typename std::enable_if<std::is_enum<T>::value>::type>
|
|
void SetEnumValue(T aValue)
|
|
{
|
|
static_assert(mozilla::EnumTypeFitsWithin<T, int32_t>::value,
|
|
"aValue must be an enum that fits within mValue.mInt");
|
|
SetIntValue(static_cast<int32_t>(aValue), eCSSUnit_Enumerated);
|
|
}
|
|
void SetPercentValue(float aValue);
|
|
void SetFloatValue(float aValue, nsCSSUnit aUnit);
|
|
void SetStringValue(const nsString& aValue, nsCSSUnit aUnit);
|
|
void SetAtomIdentValue(already_AddRefed<nsAtom> aValue);
|
|
void SetColorValue(nscolor aValue);
|
|
void SetIntegerColorValue(nscolor aValue, nsCSSUnit aUnit);
|
|
// converts the nscoord to pixels
|
|
void SetIntegerCoordValue(nscoord aCoord);
|
|
void SetFloatColorValue(float aComponent1,
|
|
float aComponent2,
|
|
float aComponent3,
|
|
float aAlpha, nsCSSUnit aUnit);
|
|
void SetRGBAColorValue(const mozilla::css::RGBAColorData& aValue);
|
|
void SetComplexColorValue(
|
|
already_AddRefed<mozilla::css::ComplexColorValue> aValue);
|
|
void SetArrayValue(nsCSSValue::Array* aArray, nsCSSUnit aUnit);
|
|
void SetURLValue(mozilla::css::URLValue* aURI);
|
|
void SetImageValue(mozilla::css::ImageValue* aImage);
|
|
void SetGradientValue(nsCSSValueGradient* aGradient);
|
|
void SetTokenStreamValue(nsCSSValueTokenStream* aTokenStream);
|
|
void SetGridTemplateAreas(mozilla::css::GridTemplateAreasValue* aValue);
|
|
void SetFontFamilyListValue(already_AddRefed<mozilla::SharedFontList> aFontListValue);
|
|
void SetPairValue(const nsCSSValuePair* aPair);
|
|
void SetPairValue(const nsCSSValue& xValue, const nsCSSValue& yValue);
|
|
void SetSharedListValue(nsCSSValueSharedList* aList);
|
|
void SetDependentListValue(nsCSSValueList* aList);
|
|
void SetDependentPairListValue(nsCSSValuePairList* aList);
|
|
void SetTripletValue(const nsCSSValueTriplet* aTriplet);
|
|
void SetTripletValue(const nsCSSValue& xValue, const nsCSSValue& yValue, const nsCSSValue& zValue);
|
|
void SetAutoValue();
|
|
void SetInheritValue();
|
|
void SetInitialValue();
|
|
void SetUnsetValue();
|
|
void SetNoneValue();
|
|
void SetAllValue();
|
|
void SetNormalValue();
|
|
void SetSystemFontValue();
|
|
void SetDummyValue();
|
|
void SetDummyInheritValue();
|
|
|
|
// Converts an nsStyleCoord::CalcValue back into a CSSValue
|
|
void SetCalcValue(const nsStyleCoord::CalcValue* aCalc);
|
|
|
|
nsStyleCoord::CalcValue GetCalcValue() const;
|
|
|
|
// These are a little different - they allocate storage for you and
|
|
// return a handle.
|
|
nsCSSRect& SetRectValue();
|
|
nsCSSValueList* SetListValue();
|
|
nsCSSValuePairList* SetPairListValue();
|
|
|
|
// These take ownership of the passed-in resource.
|
|
void AdoptListValue(mozilla::UniquePtr<nsCSSValueList> aValue);
|
|
void AdoptPairListValue(mozilla::UniquePtr<nsCSSValuePairList> aValue);
|
|
|
|
void StartImageLoad(nsIDocument* aDocument) const; // Only pretend const
|
|
|
|
// Initializes as a function value with the specified function id.
|
|
Array* InitFunction(nsCSSKeyword aFunctionId, uint32_t aNumArgs);
|
|
// Checks if this is a function value with the specified function id.
|
|
bool EqualsFunction(nsCSSKeyword aFunctionId) const;
|
|
|
|
// Returns an already addrefed buffer. Guaranteed to return non-null.
|
|
// (Will abort on allocation failure.)
|
|
static already_AddRefed<nsStringBuffer>
|
|
BufferFromString(const nsString& aValue);
|
|
|
|
// Convert the given Ident value into AtomIdent.
|
|
void AtomizeIdentValue();
|
|
|
|
size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
static void
|
|
AppendSidesShorthandToString(const nsCSSPropertyID aProperties[],
|
|
const nsCSSValue* aValues[],
|
|
nsAString& aString);
|
|
static void
|
|
AppendBasicShapeRadiusToString(const nsCSSPropertyID aProperties[],
|
|
const nsCSSValue* aValues[],
|
|
nsAString& aResult);
|
|
static void
|
|
AppendAlignJustifyValueToString(int32_t aValue, nsAString& aResult);
|
|
|
|
private:
|
|
static const char16_t* GetBufferValue(nsStringBuffer* aBuffer) {
|
|
return static_cast<char16_t*>(aBuffer->Data());
|
|
}
|
|
|
|
void AppendPolygonToString(nsCSSPropertyID aProperty,
|
|
nsAString& aResult) const;
|
|
void AppendPositionCoordinateToString(const nsCSSValue& aValue,
|
|
nsCSSPropertyID aProperty,
|
|
nsAString& aResult) const;
|
|
void AppendCircleOrEllipseToString(
|
|
nsCSSKeyword aFunctionId,
|
|
nsCSSPropertyID aProperty, nsAString& aResult) const;
|
|
void AppendBasicShapePositionToString(nsAString& aResult) const;
|
|
void AppendInsetToString(nsCSSPropertyID aProperty, nsAString& aResult) const;
|
|
protected:
|
|
nsCSSUnit mUnit;
|
|
union {
|
|
int32_t mInt;
|
|
float mFloat;
|
|
// Note: the capacity of the buffer may exceed the length of the string.
|
|
// If we're of a string type, mString is not null.
|
|
nsStringBuffer* MOZ_OWNING_REF mString;
|
|
nscolor mColor;
|
|
nsAtom* MOZ_OWNING_REF mAtom;
|
|
Array* MOZ_OWNING_REF mArray;
|
|
mozilla::css::URLValue* MOZ_OWNING_REF mURL;
|
|
mozilla::css::ImageValue* MOZ_OWNING_REF mImage;
|
|
mozilla::css::GridTemplateAreasValue* MOZ_OWNING_REF mGridTemplateAreas;
|
|
nsCSSValueGradient* MOZ_OWNING_REF mGradient;
|
|
nsCSSValueTokenStream* MOZ_OWNING_REF mTokenStream;
|
|
nsCSSValuePair_heap* MOZ_OWNING_REF mPair;
|
|
nsCSSRect_heap* MOZ_OWNING_REF mRect;
|
|
nsCSSValueTriplet_heap* MOZ_OWNING_REF mTriplet;
|
|
nsCSSValueList_heap* MOZ_OWNING_REF mList;
|
|
nsCSSValueList* mListDependent;
|
|
nsCSSValueSharedList* MOZ_OWNING_REF mSharedList;
|
|
nsCSSValuePairList_heap* MOZ_OWNING_REF mPairList;
|
|
nsCSSValuePairList* mPairListDependent;
|
|
nsCSSValueFloatColor* MOZ_OWNING_REF mFloatColor;
|
|
mozilla::SharedFontList* MOZ_OWNING_REF mFontFamilyList;
|
|
mozilla::css::ComplexColorValue* MOZ_OWNING_REF mComplexColor;
|
|
} mValue;
|
|
};
|
|
|
|
struct nsCSSValue::Array final {
|
|
|
|
// return |Array| with reference count of zero
|
|
static Array* Create(size_t aItemCount) {
|
|
return new (aItemCount) Array(aItemCount);
|
|
}
|
|
|
|
nsCSSValue& operator[](size_t aIndex) {
|
|
MOZ_ASSERT(aIndex < mCount, "out of range");
|
|
return mArray[aIndex];
|
|
}
|
|
|
|
const nsCSSValue& operator[](size_t aIndex) const {
|
|
MOZ_ASSERT(aIndex < mCount, "out of range");
|
|
return mArray[aIndex];
|
|
}
|
|
|
|
nsCSSValue& Item(size_t aIndex) { return (*this)[aIndex]; }
|
|
const nsCSSValue& Item(size_t aIndex) const { return (*this)[aIndex]; }
|
|
|
|
size_t Count() const { return mCount; }
|
|
|
|
// callers depend on the items being contiguous
|
|
nsCSSValue* ItemStorage() {
|
|
return this->First();
|
|
}
|
|
|
|
bool operator==(const Array& aOther) const
|
|
{
|
|
if (mCount != aOther.mCount)
|
|
return false;
|
|
for (size_t i = 0; i < mCount; ++i)
|
|
if ((*this)[i] != aOther[i])
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(Array);
|
|
private:
|
|
|
|
const size_t mCount;
|
|
// This must be the last sub-object, since we extend this array to
|
|
// be of size mCount; it needs to be a sub-object so it gets proper
|
|
// alignment.
|
|
nsCSSValue mArray[1];
|
|
|
|
void* operator new(size_t aSelfSize, size_t aItemCount) CPP_THROW_NEW {
|
|
MOZ_ASSERT(aItemCount > 0, "cannot have a 0 item count");
|
|
return ::operator new(aSelfSize + sizeof(nsCSSValue) * (aItemCount - 1));
|
|
}
|
|
|
|
void operator delete(void* aPtr) { ::operator delete(aPtr); }
|
|
|
|
nsCSSValue* First() { return mArray; }
|
|
|
|
const nsCSSValue* First() const { return mArray; }
|
|
|
|
#define CSSVALUE_LIST_FOR_EXTRA_VALUES(var) \
|
|
for (nsCSSValue *var = First() + 1, *var##_end = First() + mCount; \
|
|
var != var##_end; ++var)
|
|
|
|
explicit Array(size_t aItemCount)
|
|
: mRefCnt(0)
|
|
, mCount(aItemCount)
|
|
{
|
|
CSSVALUE_LIST_FOR_EXTRA_VALUES(val) {
|
|
new (val) nsCSSValue();
|
|
}
|
|
}
|
|
|
|
~Array()
|
|
{
|
|
CSSVALUE_LIST_FOR_EXTRA_VALUES(val) {
|
|
val->~nsCSSValue();
|
|
}
|
|
}
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
#undef CSSVALUE_LIST_FOR_EXTRA_VALUES
|
|
|
|
private:
|
|
Array(const Array& aOther) = delete;
|
|
Array& operator=(const Array& aOther) = delete;
|
|
};
|
|
|
|
// Prefer nsCSSValue::Array for lists of fixed size.
|
|
struct nsCSSValueList {
|
|
nsCSSValueList() : mNext(nullptr) { MOZ_COUNT_CTOR(nsCSSValueList); }
|
|
~nsCSSValueList();
|
|
|
|
nsCSSValueList* Clone() const; // makes a deep copy. Infallible.
|
|
void CloneInto(nsCSSValueList* aList) const; // makes a deep copy into aList
|
|
void AppendToString(nsCSSPropertyID aProperty, nsAString& aResult) const;
|
|
|
|
static bool Equal(const nsCSSValueList* aList1,
|
|
const nsCSSValueList* aList2);
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
nsCSSValue mValue;
|
|
nsCSSValueList* mNext;
|
|
|
|
private:
|
|
nsCSSValueList(const nsCSSValueList& aCopy) // makes a shallow copy
|
|
: mValue(aCopy.mValue), mNext(nullptr)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValueList);
|
|
}
|
|
|
|
// We don't want operator== or operator!= because they wouldn't be
|
|
// null-safe, which is generally what we need. Use |Equal| method
|
|
// above instead.
|
|
bool operator==(nsCSSValueList const& aOther) const = delete;
|
|
bool operator!=(const nsCSSValueList& aOther) const = delete;
|
|
};
|
|
|
|
// nsCSSValueList_heap differs from nsCSSValueList only in being
|
|
// refcounted. It should not be necessary to use this class directly;
|
|
// it's an implementation detail of nsCSSValue.
|
|
struct nsCSSValueList_heap final : public nsCSSValueList {
|
|
NS_INLINE_DECL_REFCOUNTING(nsCSSValueList_heap)
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSValueList_heap()
|
|
{
|
|
}
|
|
};
|
|
|
|
// This is a reference counted list value. Note that the object is
|
|
// a wrapper for the reference count and a pointer to the head of the
|
|
// list, whereas the other list types (such as nsCSSValueList) do
|
|
// not have such a wrapper.
|
|
struct nsCSSValueSharedList final {
|
|
nsCSSValueSharedList()
|
|
: mHead(nullptr)
|
|
{
|
|
}
|
|
|
|
// Takes ownership of aList.
|
|
explicit nsCSSValueSharedList(nsCSSValueList* aList)
|
|
: mHead(aList)
|
|
{
|
|
}
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSValueSharedList();
|
|
|
|
public:
|
|
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsCSSValueSharedList)
|
|
|
|
void AppendToString(nsCSSPropertyID aProperty, nsAString& aResult) const;
|
|
|
|
bool operator==(nsCSSValueSharedList const& aOther) const;
|
|
bool operator!=(const nsCSSValueSharedList& aOther) const
|
|
{ return !(*this == aOther); }
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
nsCSSValueList* mHead;
|
|
};
|
|
|
|
// This has to be here so that the relationship between nsCSSValueList
|
|
// and nsCSSValueList_heap is visible.
|
|
inline nsCSSValueList*
|
|
nsCSSValue::GetListValue()
|
|
{
|
|
if (mUnit == eCSSUnit_List)
|
|
return mValue.mList;
|
|
else {
|
|
MOZ_ASSERT(mUnit == eCSSUnit_ListDep, "not a list value");
|
|
return mValue.mListDependent;
|
|
}
|
|
}
|
|
|
|
inline const nsCSSValueList*
|
|
nsCSSValue::GetListValue() const
|
|
{
|
|
if (mUnit == eCSSUnit_List)
|
|
return mValue.mList;
|
|
else {
|
|
MOZ_ASSERT(mUnit == eCSSUnit_ListDep, "not a list value");
|
|
return mValue.mListDependent;
|
|
}
|
|
}
|
|
|
|
struct nsCSSRect {
|
|
nsCSSRect(void);
|
|
nsCSSRect(const nsCSSRect& aCopy);
|
|
~nsCSSRect();
|
|
|
|
void AppendToString(nsCSSPropertyID aProperty, nsAString& aResult) const;
|
|
|
|
bool operator==(const nsCSSRect& aOther) const {
|
|
return mTop == aOther.mTop &&
|
|
mRight == aOther.mRight &&
|
|
mBottom == aOther.mBottom &&
|
|
mLeft == aOther.mLeft;
|
|
}
|
|
|
|
bool operator!=(const nsCSSRect& aOther) const {
|
|
return mTop != aOther.mTop ||
|
|
mRight != aOther.mRight ||
|
|
mBottom != aOther.mBottom ||
|
|
mLeft != aOther.mLeft;
|
|
}
|
|
|
|
void SetAllSidesTo(const nsCSSValue& aValue);
|
|
|
|
bool AllSidesEqualTo(const nsCSSValue& aValue) const {
|
|
return mTop == aValue &&
|
|
mRight == aValue &&
|
|
mBottom == aValue &&
|
|
mLeft == aValue;
|
|
}
|
|
|
|
void Reset() {
|
|
mTop.Reset();
|
|
mRight.Reset();
|
|
mBottom.Reset();
|
|
mLeft.Reset();
|
|
}
|
|
|
|
bool HasValue() const {
|
|
return
|
|
mTop.GetUnit() != eCSSUnit_Null ||
|
|
mRight.GetUnit() != eCSSUnit_Null ||
|
|
mBottom.GetUnit() != eCSSUnit_Null ||
|
|
mLeft.GetUnit() != eCSSUnit_Null;
|
|
}
|
|
|
|
nsCSSValue mTop;
|
|
nsCSSValue mRight;
|
|
nsCSSValue mBottom;
|
|
nsCSSValue mLeft;
|
|
|
|
typedef nsCSSValue nsCSSRect::*side_type;
|
|
static const side_type sides[4];
|
|
};
|
|
|
|
// nsCSSRect_heap differs from nsCSSRect only in being
|
|
// refcounted. It should not be necessary to use this class directly;
|
|
// it's an implementation detail of nsCSSValue.
|
|
struct nsCSSRect_heap final : public nsCSSRect {
|
|
NS_INLINE_DECL_REFCOUNTING(nsCSSRect_heap)
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSRect_heap()
|
|
{
|
|
}
|
|
};
|
|
|
|
// This has to be here so that the relationship between nsCSSRect
|
|
// and nsCSSRect_heap is visible.
|
|
inline nsCSSRect&
|
|
nsCSSValue::GetRectValue()
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Rect, "not a rect value");
|
|
return *mValue.mRect;
|
|
}
|
|
|
|
inline const nsCSSRect&
|
|
nsCSSValue::GetRectValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Rect, "not a rect value");
|
|
return *mValue.mRect;
|
|
}
|
|
|
|
struct nsCSSValuePair {
|
|
nsCSSValuePair()
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValuePair);
|
|
}
|
|
explicit nsCSSValuePair(nsCSSUnit aUnit)
|
|
: mXValue(aUnit), mYValue(aUnit)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValuePair);
|
|
}
|
|
nsCSSValuePair(const nsCSSValue& aXValue, const nsCSSValue& aYValue)
|
|
: mXValue(aXValue), mYValue(aYValue)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValuePair);
|
|
}
|
|
nsCSSValuePair(const nsCSSValuePair& aCopy)
|
|
: mXValue(aCopy.mXValue), mYValue(aCopy.mYValue)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValuePair);
|
|
}
|
|
~nsCSSValuePair()
|
|
{
|
|
MOZ_COUNT_DTOR(nsCSSValuePair);
|
|
}
|
|
|
|
nsCSSValuePair& operator=(const nsCSSValuePair& aOther) {
|
|
mXValue = aOther.mXValue;
|
|
mYValue = aOther.mYValue;
|
|
return *this;
|
|
}
|
|
|
|
bool operator==(const nsCSSValuePair& aOther) const {
|
|
return mXValue == aOther.mXValue &&
|
|
mYValue == aOther.mYValue;
|
|
}
|
|
|
|
bool operator!=(const nsCSSValuePair& aOther) const {
|
|
return mXValue != aOther.mXValue ||
|
|
mYValue != aOther.mYValue;
|
|
}
|
|
|
|
bool BothValuesEqualTo(const nsCSSValue& aValue) const {
|
|
return mXValue == aValue &&
|
|
mYValue == aValue;
|
|
}
|
|
|
|
void SetBothValuesTo(const nsCSSValue& aValue) {
|
|
mXValue = aValue;
|
|
mYValue = aValue;
|
|
}
|
|
|
|
void Reset() {
|
|
mXValue.Reset();
|
|
mYValue.Reset();
|
|
}
|
|
|
|
bool HasValue() const {
|
|
return mXValue.GetUnit() != eCSSUnit_Null ||
|
|
mYValue.GetUnit() != eCSSUnit_Null;
|
|
}
|
|
|
|
void AppendToString(nsCSSPropertyID aProperty, nsAString& aResult) const;
|
|
|
|
size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
nsCSSValue mXValue;
|
|
nsCSSValue mYValue;
|
|
};
|
|
|
|
// nsCSSValuePair_heap differs from nsCSSValuePair only in being
|
|
// refcounted. It should not be necessary to use this class directly;
|
|
// it's an implementation detail of nsCSSValue.
|
|
struct nsCSSValuePair_heap final : public nsCSSValuePair {
|
|
// forward constructor
|
|
nsCSSValuePair_heap(const nsCSSValue& aXValue, const nsCSSValue& aYValue)
|
|
: nsCSSValuePair(aXValue, aYValue)
|
|
{}
|
|
|
|
NS_INLINE_DECL_REFCOUNTING(nsCSSValuePair_heap)
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSValuePair_heap()
|
|
{
|
|
}
|
|
};
|
|
|
|
struct nsCSSValueTriplet {
|
|
nsCSSValueTriplet()
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValueTriplet);
|
|
}
|
|
explicit nsCSSValueTriplet(nsCSSUnit aUnit)
|
|
: mXValue(aUnit), mYValue(aUnit), mZValue(aUnit)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValueTriplet);
|
|
}
|
|
nsCSSValueTriplet(const nsCSSValue& aXValue,
|
|
const nsCSSValue& aYValue,
|
|
const nsCSSValue& aZValue)
|
|
: mXValue(aXValue), mYValue(aYValue), mZValue(aZValue)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValueTriplet);
|
|
}
|
|
nsCSSValueTriplet(const nsCSSValueTriplet& aCopy)
|
|
: mXValue(aCopy.mXValue), mYValue(aCopy.mYValue), mZValue(aCopy.mZValue)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValueTriplet);
|
|
}
|
|
~nsCSSValueTriplet()
|
|
{
|
|
MOZ_COUNT_DTOR(nsCSSValueTriplet);
|
|
}
|
|
|
|
bool operator==(const nsCSSValueTriplet& aOther) const {
|
|
return mXValue == aOther.mXValue &&
|
|
mYValue == aOther.mYValue &&
|
|
mZValue == aOther.mZValue;
|
|
}
|
|
|
|
bool operator!=(const nsCSSValueTriplet& aOther) const {
|
|
return mXValue != aOther.mXValue ||
|
|
mYValue != aOther.mYValue ||
|
|
mZValue != aOther.mZValue;
|
|
}
|
|
|
|
bool AllValuesEqualTo(const nsCSSValue& aValue) const {
|
|
return mXValue == aValue &&
|
|
mYValue == aValue &&
|
|
mZValue == aValue;
|
|
}
|
|
|
|
void SetAllValuesTo(const nsCSSValue& aValue) {
|
|
mXValue = aValue;
|
|
mYValue = aValue;
|
|
mZValue = aValue;
|
|
}
|
|
|
|
void Reset() {
|
|
mXValue.Reset();
|
|
mYValue.Reset();
|
|
mZValue.Reset();
|
|
}
|
|
|
|
bool HasValue() const {
|
|
return mXValue.GetUnit() != eCSSUnit_Null ||
|
|
mYValue.GetUnit() != eCSSUnit_Null ||
|
|
mZValue.GetUnit() != eCSSUnit_Null;
|
|
}
|
|
|
|
void AppendToString(nsCSSPropertyID aProperty, nsAString& aResult) const;
|
|
|
|
nsCSSValue mXValue;
|
|
nsCSSValue mYValue;
|
|
nsCSSValue mZValue;
|
|
};
|
|
|
|
// nsCSSValueTriplet_heap differs from nsCSSValueTriplet only in being
|
|
// refcounted. It should not be necessary to use this class directly;
|
|
// it's an implementation detail of nsCSSValue.
|
|
struct nsCSSValueTriplet_heap final : public nsCSSValueTriplet {
|
|
// forward constructor
|
|
nsCSSValueTriplet_heap(const nsCSSValue& aXValue, const nsCSSValue& aYValue, const nsCSSValue& aZValue)
|
|
: nsCSSValueTriplet(aXValue, aYValue, aZValue)
|
|
{}
|
|
|
|
NS_INLINE_DECL_REFCOUNTING(nsCSSValueTriplet_heap)
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSValueTriplet_heap()
|
|
{
|
|
}
|
|
};
|
|
|
|
// This has to be here so that the relationship between nsCSSValuePair
|
|
// and nsCSSValuePair_heap is visible.
|
|
inline nsCSSValuePair&
|
|
nsCSSValue::GetPairValue()
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Pair, "not a pair value");
|
|
return *mValue.mPair;
|
|
}
|
|
|
|
inline const nsCSSValuePair&
|
|
nsCSSValue::GetPairValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Pair, "not a pair value");
|
|
return *mValue.mPair;
|
|
}
|
|
|
|
inline nsCSSValueTriplet&
|
|
nsCSSValue::GetTripletValue()
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Triplet, "not a triplet value");
|
|
return *mValue.mTriplet;
|
|
}
|
|
|
|
inline const nsCSSValueTriplet&
|
|
nsCSSValue::GetTripletValue() const
|
|
{
|
|
MOZ_ASSERT(mUnit == eCSSUnit_Triplet, "not a triplet value");
|
|
return *mValue.mTriplet;
|
|
}
|
|
|
|
// Maybe should be replaced with nsCSSValueList and nsCSSValue::Array?
|
|
struct nsCSSValuePairList {
|
|
nsCSSValuePairList() : mNext(nullptr) { MOZ_COUNT_CTOR(nsCSSValuePairList); }
|
|
~nsCSSValuePairList();
|
|
|
|
nsCSSValuePairList* Clone() const; // makes a deep copy. Infallible.
|
|
void AppendToString(nsCSSPropertyID aProperty, nsAString& aResult) const;
|
|
|
|
static bool Equal(const nsCSSValuePairList* aList1,
|
|
const nsCSSValuePairList* aList2);
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
nsCSSValue mXValue;
|
|
nsCSSValue mYValue;
|
|
nsCSSValuePairList* mNext;
|
|
|
|
private:
|
|
nsCSSValuePairList(const nsCSSValuePairList& aCopy) // makes a shallow copy
|
|
: mXValue(aCopy.mXValue), mYValue(aCopy.mYValue), mNext(nullptr)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSValuePairList);
|
|
}
|
|
|
|
// We don't want operator== or operator!= because they wouldn't be
|
|
// null-safe, which is generally what we need. Use |Equal| method
|
|
// above instead.
|
|
bool operator==(const nsCSSValuePairList& aOther) const = delete;
|
|
bool operator!=(const nsCSSValuePairList& aOther) const = delete;
|
|
};
|
|
|
|
// nsCSSValuePairList_heap differs from nsCSSValuePairList only in being
|
|
// refcounted. It should not be necessary to use this class directly;
|
|
// it's an implementation detail of nsCSSValue.
|
|
struct nsCSSValuePairList_heap final : public nsCSSValuePairList {
|
|
NS_INLINE_DECL_REFCOUNTING(nsCSSValuePairList_heap)
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSValuePairList_heap()
|
|
{
|
|
}
|
|
};
|
|
|
|
// This has to be here so that the relationship between nsCSSValuePairList
|
|
// and nsCSSValuePairList_heap is visible.
|
|
inline nsCSSValuePairList*
|
|
nsCSSValue::GetPairListValue()
|
|
{
|
|
if (mUnit == eCSSUnit_PairList)
|
|
return mValue.mPairList;
|
|
else {
|
|
MOZ_ASSERT (mUnit == eCSSUnit_PairListDep, "not a pairlist value");
|
|
return mValue.mPairListDependent;
|
|
}
|
|
}
|
|
|
|
inline const nsCSSValuePairList*
|
|
nsCSSValue::GetPairListValue() const
|
|
{
|
|
if (mUnit == eCSSUnit_PairList)
|
|
return mValue.mPairList;
|
|
else {
|
|
MOZ_ASSERT (mUnit == eCSSUnit_PairListDep, "not a pairlist value");
|
|
return mValue.mPairListDependent;
|
|
}
|
|
}
|
|
|
|
struct nsCSSValueGradientStop {
|
|
public:
|
|
nsCSSValueGradientStop();
|
|
// needed to keep bloat logs happy when we use the TArray
|
|
// in nsCSSValueGradient
|
|
nsCSSValueGradientStop(const nsCSSValueGradientStop& aOther);
|
|
~nsCSSValueGradientStop();
|
|
|
|
nsCSSValue mLocation;
|
|
nsCSSValue mColor;
|
|
// If mIsInterpolationHint is true, there is no color, just
|
|
// a location.
|
|
bool mIsInterpolationHint;
|
|
|
|
bool operator==(const nsCSSValueGradientStop& aOther) const
|
|
{
|
|
return (mLocation == aOther.mLocation &&
|
|
mIsInterpolationHint == aOther.mIsInterpolationHint &&
|
|
(mIsInterpolationHint || mColor == aOther.mColor));
|
|
}
|
|
|
|
bool operator!=(const nsCSSValueGradientStop& aOther) const
|
|
{
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
};
|
|
|
|
struct nsCSSValueGradient final {
|
|
nsCSSValueGradient(bool aIsRadial, bool aIsRepeating);
|
|
|
|
// true if gradient is radial, false if it is linear
|
|
bool mIsRadial;
|
|
bool mIsRepeating;
|
|
bool mIsLegacySyntax; // If true, serialization should use a vendor prefix.
|
|
// XXXdholbert This will hopefully be going away soon, if bug 1337655 sticks:
|
|
bool mIsMozLegacySyntax; // (Only makes sense when mIsLegacySyntax is true.)
|
|
// If true, serialization should use -moz prefix.
|
|
// Else, serialization should use -webkit prefix.
|
|
bool mIsExplicitSize;
|
|
// line position and angle
|
|
nsCSSValuePair mBgPos;
|
|
nsCSSValue mAngle;
|
|
|
|
// Only meaningful if mIsRadial is true
|
|
private:
|
|
nsCSSValue mRadialValues[2];
|
|
public:
|
|
nsCSSValue& GetRadialShape()
|
|
{
|
|
MOZ_ASSERT(!mIsExplicitSize);
|
|
return mRadialValues[0];
|
|
}
|
|
const nsCSSValue& GetRadialShape() const
|
|
{
|
|
MOZ_ASSERT(!mIsExplicitSize);
|
|
return mRadialValues[0];
|
|
}
|
|
nsCSSValue& GetRadialSize()
|
|
{
|
|
MOZ_ASSERT(!mIsExplicitSize);
|
|
return mRadialValues[1];
|
|
}
|
|
const nsCSSValue& GetRadialSize() const
|
|
{
|
|
MOZ_ASSERT(!mIsExplicitSize);
|
|
return mRadialValues[1];
|
|
}
|
|
nsCSSValue& GetRadiusX()
|
|
{
|
|
MOZ_ASSERT(mIsExplicitSize);
|
|
return mRadialValues[0];
|
|
}
|
|
const nsCSSValue& GetRadiusX() const
|
|
{
|
|
MOZ_ASSERT(mIsExplicitSize);
|
|
return mRadialValues[0];
|
|
}
|
|
nsCSSValue& GetRadiusY()
|
|
{
|
|
MOZ_ASSERT(mIsExplicitSize);
|
|
return mRadialValues[1];
|
|
}
|
|
const nsCSSValue& GetRadiusY() const
|
|
{
|
|
MOZ_ASSERT(mIsExplicitSize);
|
|
return mRadialValues[1];
|
|
}
|
|
|
|
InfallibleTArray<nsCSSValueGradientStop> mStops;
|
|
|
|
bool operator==(const nsCSSValueGradient& aOther) const
|
|
{
|
|
if (mIsRadial != aOther.mIsRadial ||
|
|
mIsRepeating != aOther.mIsRepeating ||
|
|
mIsLegacySyntax != aOther.mIsLegacySyntax ||
|
|
mIsMozLegacySyntax != aOther.mIsMozLegacySyntax ||
|
|
mIsExplicitSize != aOther.mIsExplicitSize ||
|
|
mBgPos != aOther.mBgPos ||
|
|
mAngle != aOther.mAngle ||
|
|
mRadialValues[0] != aOther.mRadialValues[0] ||
|
|
mRadialValues[1] != aOther.mRadialValues[1])
|
|
return false;
|
|
|
|
if (mStops.Length() != aOther.mStops.Length())
|
|
return false;
|
|
|
|
for (uint32_t i = 0; i < mStops.Length(); i++) {
|
|
if (mStops[i] != aOther.mStops[i])
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool operator!=(const nsCSSValueGradient& aOther) const
|
|
{
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
NS_INLINE_DECL_REFCOUNTING(nsCSSValueGradient)
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSValueGradient()
|
|
{
|
|
}
|
|
|
|
nsCSSValueGradient(const nsCSSValueGradient& aOther) = delete;
|
|
nsCSSValueGradient& operator=(const nsCSSValueGradient& aOther) = delete;
|
|
};
|
|
|
|
// A string value used primarily to represent variable references.
|
|
//
|
|
// Animation code, specifically the KeyframeUtils class, also uses this
|
|
// type as a container for various string values including:
|
|
//
|
|
// * Shorthand property values
|
|
// * Shorthand sentinel values used for testing failure conditions
|
|
// * Invalid longhand property values
|
|
//
|
|
// For the most part, the above values are not passed to functions that
|
|
// manipulate nsCSSValue objects in a generic fashion. Instead KeyframeUtils
|
|
// extracts the string from the nsCSSValueTokenStream and passes that around
|
|
// instead. The single exception is nsCSSValue::AppendToString which we use
|
|
// to serialize the string contained in the nsCSSValueTokenStream by ensuring
|
|
// the mShorthandPropertyID is set to eCSSProperty_UNKNOWN.
|
|
struct nsCSSValueTokenStream final {
|
|
nsCSSValueTokenStream();
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSValueTokenStream();
|
|
|
|
public:
|
|
bool operator==(const nsCSSValueTokenStream& aOther) const
|
|
{
|
|
// This is not safe to call OMT, due to the URI/Principal Equals calls.
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
bool eq;
|
|
return mPropertyID == aOther.mPropertyID &&
|
|
mShorthandPropertyID == aOther.mShorthandPropertyID &&
|
|
mTokenStream.Equals(aOther.mTokenStream) &&
|
|
mLevel == aOther.mLevel &&
|
|
(mBaseURI == aOther.mBaseURI ||
|
|
(mBaseURI && aOther.mBaseURI &&
|
|
NS_SUCCEEDED(mBaseURI->Equals(aOther.mBaseURI, &eq)) &&
|
|
eq)) &&
|
|
(mSheetURI == aOther.mSheetURI ||
|
|
(mSheetURI && aOther.mSheetURI &&
|
|
NS_SUCCEEDED(mSheetURI->Equals(aOther.mSheetURI, &eq)) &&
|
|
eq)) &&
|
|
(mSheetPrincipal == aOther.mSheetPrincipal ||
|
|
(mSheetPrincipal && aOther.mSheetPrincipal &&
|
|
NS_SUCCEEDED(mSheetPrincipal->Equals(aOther.mSheetPrincipal,
|
|
&eq)) &&
|
|
eq));
|
|
}
|
|
|
|
bool operator!=(const nsCSSValueTokenStream& aOther) const
|
|
{
|
|
return !(*this == aOther);
|
|
}
|
|
|
|
NS_INLINE_DECL_REFCOUNTING(nsCSSValueTokenStream)
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
// The property that has mTokenStream as its unparsed specified value.
|
|
// When a variable reference is used in a shorthand property, a
|
|
// TokenStream value is stored as the specified value for each of its
|
|
// component longhand properties.
|
|
nsCSSPropertyID mPropertyID;
|
|
|
|
// The shorthand property that had a value with a variable reference,
|
|
// which caused the longhand property identified by mPropertyID to have
|
|
// a TokenStream value.
|
|
nsCSSPropertyID mShorthandPropertyID;
|
|
|
|
// The unparsed CSS corresponding to the specified value of the property.
|
|
// When the value of a shorthand property has a variable reference, the
|
|
// same mTokenStream value is used on each of the nsCSSValueTokenStream
|
|
// objects that will be set by parsing the shorthand.
|
|
nsString mTokenStream;
|
|
|
|
nsCOMPtr<nsIURI> mBaseURI;
|
|
nsCOMPtr<nsIURI> mSheetURI;
|
|
nsCOMPtr<nsIPrincipal> mSheetPrincipal;
|
|
// XXX Should store sheet here (see Bug 952338)
|
|
// mozilla::CSSStyleSheet* mSheet;
|
|
uint32_t mLineNumber;
|
|
uint32_t mLineOffset;
|
|
mozilla::SheetType mLevel;
|
|
|
|
private:
|
|
nsCSSValueTokenStream(const nsCSSValueTokenStream& aOther) = delete;
|
|
nsCSSValueTokenStream& operator=(const nsCSSValueTokenStream& aOther) = delete;
|
|
};
|
|
|
|
class nsCSSValueFloatColor final {
|
|
public:
|
|
nsCSSValueFloatColor(float aComponent1, float aComponent2, float aComponent3,
|
|
float aAlpha)
|
|
: mComponent1(aComponent1)
|
|
, mComponent2(aComponent2)
|
|
, mComponent3(aComponent3)
|
|
, mAlpha(aAlpha)
|
|
{
|
|
// We may copy nsCSSValueFloatColor and do some comparisons on them.
|
|
// In order to get the correct result, we have to make sure each component
|
|
// is finite.
|
|
MOZ_ASSERT(mozilla::IsFinite(aComponent1) &&
|
|
mozilla::IsFinite(aComponent2) &&
|
|
mozilla::IsFinite(aComponent3) &&
|
|
mozilla::IsFinite(aAlpha),
|
|
"Caller must ensure color components are finite");
|
|
}
|
|
|
|
private:
|
|
// Private destructor, to discourage deletion outside of Release():
|
|
~nsCSSValueFloatColor()
|
|
{}
|
|
|
|
public:
|
|
bool operator==(nsCSSValueFloatColor& aOther) const;
|
|
|
|
nscolor GetColorValue(nsCSSUnit aUnit) const;
|
|
float Comp1() const { return mComponent1; }
|
|
float Comp2() const { return mComponent2; }
|
|
float Comp3() const { return mComponent3; }
|
|
float Alpha() const { return mAlpha; }
|
|
bool IsNonTransparentColor() const;
|
|
|
|
void AppendToString(nsCSSUnit aUnit, nsAString& aResult) const;
|
|
|
|
size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
|
|
|
|
NS_INLINE_DECL_REFCOUNTING(nsCSSValueFloatColor)
|
|
|
|
private:
|
|
// The range of each component is.
|
|
// [0, 1] for HSLColor and HSLAColor. mComponent1 for hue, mComponent2 for
|
|
// saturation, mComponent3 for lightness.
|
|
// [0, 1] for saturation and lightness
|
|
// represents [0%, 100%].
|
|
// [0, 1] for hue represents
|
|
// [0deg, 360deg].
|
|
//
|
|
// [-float::max(), float::max()] for PercentageRGBColor, PercentageRGBAColor.
|
|
// 1.0 means 100%.
|
|
float mComponent1;
|
|
float mComponent2;
|
|
float mComponent3;
|
|
float mAlpha;
|
|
|
|
nsCSSValueFloatColor(const nsCSSValueFloatColor& aOther) = delete;
|
|
nsCSSValueFloatColor& operator=(const nsCSSValueFloatColor& aOther)
|
|
= delete;
|
|
};
|
|
|
|
struct nsCSSCornerSizes {
|
|
nsCSSCornerSizes(void);
|
|
nsCSSCornerSizes(const nsCSSCornerSizes& aCopy);
|
|
~nsCSSCornerSizes();
|
|
|
|
// argument is a "full corner" constant from nsStyleConsts.h
|
|
nsCSSValue const & GetCorner(uint32_t aCorner) const {
|
|
return this->*corners[aCorner];
|
|
}
|
|
nsCSSValue & GetCorner(uint32_t aCorner) {
|
|
return this->*corners[aCorner];
|
|
}
|
|
|
|
bool operator==(const nsCSSCornerSizes& aOther) const {
|
|
NS_FOR_CSS_FULL_CORNERS(corner) {
|
|
if (this->GetCorner(corner) != aOther.GetCorner(corner))
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool operator!=(const nsCSSCornerSizes& aOther) const {
|
|
NS_FOR_CSS_FULL_CORNERS(corner) {
|
|
if (this->GetCorner(corner) != aOther.GetCorner(corner))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool HasValue() const {
|
|
NS_FOR_CSS_FULL_CORNERS(corner) {
|
|
if (this->GetCorner(corner).GetUnit() != eCSSUnit_Null)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void Reset();
|
|
|
|
nsCSSValue mTopLeft;
|
|
nsCSSValue mTopRight;
|
|
nsCSSValue mBottomRight;
|
|
nsCSSValue mBottomLeft;
|
|
|
|
protected:
|
|
typedef nsCSSValue nsCSSCornerSizes::*corner_type;
|
|
static const corner_type corners[4];
|
|
};
|
|
|
|
#endif /* nsCSSValue_h___ */
|
|
|