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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* Representation of a declaration block used for attribute mapping */
#ifndef mozilla_MappedDeclarations_h
#define mozilla_MappedDeclarations_h
#include "mozilla/FontPropertyTypes.h"
#include "mozilla/ServoBindingTypes.h"
#include "mozilla/ServoBindings.h"
#include "nsCSSPropertyID.h"
#include "nsCSSValue.h"
#include "nsColor.h"
class nsAttrValue;
namespace mozilla {
// This provides a convenient interface for attribute mappers
// (MapAttributesIntoRule) to modify the presentation attribute declaration
// block for a given element.
class MappedDeclarations final {
public:
explicit MappedDeclarations(dom::Document* aDoc,
already_AddRefed<RawServoDeclarationBlock> aDecls)
: mDocument(aDoc), mDecl(aDecls) {
MOZ_ASSERT(mDecl);
}
~MappedDeclarations() { MOZ_ASSERT(!mDecl, "Forgot to take the block?"); }
dom::Document* Document() { return mDocument; }
already_AddRefed<RawServoDeclarationBlock> TakeDeclarationBlock() {
MOZ_ASSERT(mDecl);
return mDecl.forget();
}
// Check if we already contain a certain longhand
bool PropertyIsSet(nsCSSPropertyID aId) const {
return Servo_DeclarationBlock_PropertyIsSet(mDecl, aId);
}
// Set a property to an identifier (string)
void SetIdentStringValue(nsCSSPropertyID aId, const nsString& aValue) {
RefPtr<nsAtom> atom = NS_AtomizeMainThread(aValue);
SetIdentAtomValue(aId, atom);
}
void SetIdentStringValueIfUnset(nsCSSPropertyID aId, const nsString& aValue) {
if (!PropertyIsSet(aId)) {
SetIdentStringValue(aId, aValue);
}
}
void SetIdentAtomValue(nsCSSPropertyID aId, nsAtom* aValue);
void SetIdentAtomValueIfUnset(nsCSSPropertyID aId, nsAtom* aValue) {
if (!PropertyIsSet(aId)) {
SetIdentAtomValue(aId, aValue);
}
}
// Set a property to a keyword (usually NS_STYLE_* or StyleFoo::*)
void SetKeywordValue(nsCSSPropertyID aId, int32_t aValue) {
Servo_DeclarationBlock_SetKeywordValue(mDecl, aId, aValue);
}
void SetKeywordValueIfUnset(nsCSSPropertyID aId, int32_t aValue) {
if (!PropertyIsSet(aId)) {
SetKeywordValue(aId, aValue);
}
}
template <typename T,
typename = typename std::enable_if<std::is_enum<T>::value>::type>
void SetKeywordValue(nsCSSPropertyID aId, T aValue) {
static_assert(EnumTypeFitsWithin<T, int32_t>::value,
"aValue must be an enum that fits within 32 bits");
SetKeywordValue(aId, static_cast<int32_t>(aValue));
}
template <typename T,
typename = typename std::enable_if<std::is_enum<T>::value>::type>
void SetKeywordValueIfUnset(nsCSSPropertyID aId, T aValue) {
static_assert(EnumTypeFitsWithin<T, int32_t>::value,
"aValue must be an enum that fits within 32 bits");
SetKeywordValueIfUnset(aId, static_cast<int32_t>(aValue));
}
// Set a property to an integer value
void SetIntValue(nsCSSPropertyID aId, int32_t aValue) {
Servo_DeclarationBlock_SetIntValue(mDecl, aId, aValue);
}
// Set "math-depth: <integer>" or "math-depth: add(<integer>)"
void SetMathDepthValue(int32_t aValue, bool aIsRelative) {
Servo_DeclarationBlock_SetMathDepthValue(mDecl, aValue, aIsRelative);
}
// Set "counter-reset: list-item <integer>".
void SetCounterResetListItem(int32_t aValue) {
Servo_DeclarationBlock_SetCounterResetListItem(mDecl, aValue);
}
// Set "counter-set: list-item <integer>".
void SetCounterSetListItem(int32_t aValue) {
Servo_DeclarationBlock_SetCounterSetListItem(mDecl, aValue);
}
// Set a property to a pixel value
void SetPixelValue(nsCSSPropertyID aId, float aValue) {
Servo_DeclarationBlock_SetPixelValue(mDecl, aId, aValue);
}
void SetPixelValueIfUnset(nsCSSPropertyID aId, float aValue) {
if (!PropertyIsSet(aId)) {
SetPixelValue(aId, aValue);
}
}
void SetLengthValue(nsCSSPropertyID aId, const nsCSSValue& aValue) {
MOZ_ASSERT(aValue.IsLengthUnit());
Servo_DeclarationBlock_SetLengthValue(mDecl, aId, aValue.GetFloatValue(),
aValue.GetUnit());
}
// Set a property to a number value
void SetNumberValue(nsCSSPropertyID aId, float aValue) {
Servo_DeclarationBlock_SetNumberValue(mDecl, aId, aValue);
}
// Set a property to a percent value
void SetPercentValue(nsCSSPropertyID aId, float aValue) {
Servo_DeclarationBlock_SetPercentValue(mDecl, aId, aValue);
}
void SetPercentValueIfUnset(nsCSSPropertyID aId, float aValue) {
if (!PropertyIsSet(aId)) {
SetPercentValue(aId, aValue);
}
}
// Set a property to `auto`
void SetAutoValue(nsCSSPropertyID aId) {
Servo_DeclarationBlock_SetAutoValue(mDecl, aId);
}
void SetAutoValueIfUnset(nsCSSPropertyID aId) {
if (!PropertyIsSet(aId)) {
SetAutoValue(aId);
}
}
// Set a property to `currentcolor`
void SetCurrentColor(nsCSSPropertyID aId) {
Servo_DeclarationBlock_SetCurrentColor(mDecl, aId);
}
void SetCurrentColorIfUnset(nsCSSPropertyID aId) {
if (!PropertyIsSet(aId)) {
SetCurrentColor(aId);
}
}
// Set a property to an RGBA nscolor value
void SetColorValue(nsCSSPropertyID aId, nscolor aValue) {
Servo_DeclarationBlock_SetColorValue(mDecl, aId, aValue);
}
void SetColorValueIfUnset(nsCSSPropertyID aId, nscolor aValue) {
if (!PropertyIsSet(aId)) {
SetColorValue(aId, aValue);
}
}
// Set font-family to a string
void SetFontFamily(const nsACString& aValue) {
Servo_DeclarationBlock_SetFontFamily(mDecl, &aValue);
}
// Add a quirks-mode override to the decoration color of elements nested in
// <a>
void SetTextDecorationColorOverride() {
Servo_DeclarationBlock_SetTextDecorationColorOverride(mDecl);
}
void SetBackgroundImage(const nsAttrValue& value);
void SetAspectRatio(float aWidth, float aHeight) {
Servo_DeclarationBlock_SetAspectRatio(mDecl, aWidth, aHeight);
}
private:
dom::Document* const mDocument;
RefPtr<RawServoDeclarationBlock> mDecl;
};
} // namespace mozilla
#endif // mozilla_MappedDeclarations_h
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