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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/style/RuleNodeCacheConditions.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/style/RuleNodeCacheConditions.cpp')
-rw-r--r--layout/style/RuleNodeCacheConditions.cpp53
1 files changed, 53 insertions, 0 deletions
diff --git a/layout/style/RuleNodeCacheConditions.cpp b/layout/style/RuleNodeCacheConditions.cpp
new file mode 100644
index 000000000..2dbb6c344
--- /dev/null
+++ b/layout/style/RuleNodeCacheConditions.cpp
@@ -0,0 +1,53 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=78: */
+/* 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/. */
+
+/*
+ * an object that stores the result of determining whether a style struct that
+ * was computed can be cached in the rule tree, and if so, what the cache
+ * key is
+ */
+
+#include "RuleNodeCacheConditions.h"
+
+#include "nsStyleContext.h"
+#include "WritingModes.h"
+
+using namespace mozilla;
+
+bool
+RuleNodeCacheConditions::Matches(nsStyleContext* aStyleContext) const
+{
+ MOZ_ASSERT(Cacheable());
+ if ((mBits & eHaveFontSize) &&
+ mFontSize != aStyleContext->StyleFont()->mFont.size) {
+ return false;
+ }
+ if ((mBits & eHaveWritingMode) &&
+ (GetWritingMode() != WritingMode(aStyleContext).GetBits())) {
+ return false;
+ }
+ return true;
+}
+
+#ifdef DEBUG
+void
+RuleNodeCacheConditions::List() const
+{
+ printf("{ ");
+ bool first = true;
+ if (mBits & eHaveFontSize) {
+ printf("FontSize(%d)", mFontSize);
+ first = false;
+ }
+ if (mBits & eHaveWritingMode) {
+ if (!first) {
+ printf(", ");
+ }
+ printf("WritingMode(0x%x)", GetWritingMode());
+ }
+ printf(" }");
+}
+#endif