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-rw-r--r--dom/animation/AnimValuesStyleRule.cpp110
1 files changed, 110 insertions, 0 deletions
diff --git a/dom/animation/AnimValuesStyleRule.cpp b/dom/animation/AnimValuesStyleRule.cpp
new file mode 100644
index 000000000..dbdffd5b5
--- /dev/null
+++ b/dom/animation/AnimValuesStyleRule.cpp
@@ -0,0 +1,110 @@
+/* -*- 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]);
+}
+
+#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