gecko-dev/dom/animation/AnimValuesStyleRule.cpp

118 строки
3.9 KiB
C++

/* -*- 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/. */
#include "AnimValuesStyleRule.h"
#include "nsRuleData.h"
#include "nsStyleContext.h"
namespace mozilla {
NS_IMPL_ISUPPORTS(AnimValuesStyleRule, nsIStyleRule)
void
AnimValuesStyleRule::MapRuleInfoInto(nsRuleData* aRuleData)
{
nsStyleContext *contextParent = aRuleData->mStyleContext->GetParent();
if (contextParent && contextParent->HasPseudoElementData()) {
// Don't apply transitions or animations to things inside of
// pseudo-elements.
// FIXME (Bug 522599): Add tests for this.
// Prevent structs from being cached on the rule node since we're inside
// a pseudo-element, as we could determine cacheability differently
// when walking the rule tree for a style context that is not inside
// a pseudo-element. Note that nsRuleNode::GetStyle##name_ and GetStyleData
// will never look at cached structs when we're animating things inside
// a pseduo-element, so that we don't incorrectly return a struct that
// is only appropriate for non-pseudo-elements.
aRuleData->mConditions.SetUncacheable();
return;
}
for (auto iter = mAnimationValues.ConstIter(); !iter.Done(); iter.Next()) {
nsCSSPropertyID property = static_cast<nsCSSPropertyID>(iter.Key());
if (aRuleData->mSIDs & nsCachedStyleData::GetBitForSID(
nsCSSProps::kSIDTable[property])) {
nsCSSValue *prop = aRuleData->ValueFor(property);
if (prop->GetUnit() == eCSSUnit_Null) {
DebugOnly<bool> ok =
StyleAnimationValue::UncomputeValue(property, iter.Data(),
*prop);
MOZ_ASSERT(ok, "could not store computed value");
}
}
}
}
bool
AnimValuesStyleRule::MightMapInheritedStyleData()
{
return mStyleBits & NS_STYLE_INHERITED_STRUCT_MASK;
}
bool
AnimValuesStyleRule::GetDiscretelyAnimatedCSSValue(nsCSSPropertyID aProperty,
nsCSSValue* aValue)
{
MOZ_ASSERT(false, "GetDiscretelyAnimatedCSSValue is not implemented yet");
return false;
}
void
AnimValuesStyleRule::AddValue(nsCSSPropertyID aProperty,
const StyleAnimationValue &aValue)
{
MOZ_ASSERT(aProperty != eCSSProperty_UNKNOWN,
"Unexpected css property");
mAnimationValues.Put(aProperty, aValue);
mStyleBits |=
nsCachedStyleData::GetBitForSID(nsCSSProps::kSIDTable[aProperty]);
}
void
AnimValuesStyleRule::AddValue(nsCSSPropertyID aProperty,
StyleAnimationValue&& aValue)
{
MOZ_ASSERT(aProperty != eCSSProperty_UNKNOWN,
"Unexpected css property");
mAnimationValues.Put(aProperty, Move(aValue));
mStyleBits |=
nsCachedStyleData::GetBitForSID(nsCSSProps::kSIDTable[aProperty]);
}
bool
AnimValuesStyleRule::GetValue(nsCSSPropertyID aProperty,
StyleAnimationValue& aValue) const
{
return mAnimationValues.Get(aProperty, &aValue);
}
#ifdef DEBUG
void
AnimValuesStyleRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString str;
for (int32_t index = aIndent; --index >= 0; ) {
str.AppendLiteral(" ");
}
str.AppendLiteral("[anim values] { ");
for (auto iter = mAnimationValues.ConstIter(); !iter.Done(); iter.Next()) {
nsCSSPropertyID property = static_cast<nsCSSPropertyID>(iter.Key());
str.Append(nsCSSProps::GetStringValue(property));
str.AppendLiteral(": ");
nsAutoString value;
Unused <<
StyleAnimationValue::UncomputeValue(property, iter.Data(), value);
AppendUTF16toUTF8(value, str);
str.AppendLiteral("; ");
}
str.AppendLiteral("}\n");
fprintf_stderr(out, "%s", str.get());
}
#endif
} // namespace mozilla