blob: 387d1f69112a10943f1da3539bb67b67c1dc5f37 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/core/css/parser/css_lazy_parsing_state.h"
#include "third_party/blink/renderer/core/css/parser/css_parser_token_stream.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/frame/use_counter.h"
#include "third_party/blink/renderer/platform/heap/heap.h"
namespace blink {
CSSLazyParsingState::CSSLazyParsingState(const CSSParserContext* context,
const String& sheet_text,
StyleSheetContents* contents)
: context_(context),
sheet_text_(sheet_text),
owning_contents_(contents),
should_use_count_(context_->IsUseCounterRecordingEnabled()) {}
const CSSParserContext* CSSLazyParsingState::Context() {
DCHECK(owning_contents_);
if (!should_use_count_) {
DCHECK(!context_->IsUseCounterRecordingEnabled());
return context_;
}
// Try as best as possible to grab a valid Document if the old Document has
// gone away so we can still use UseCounter.
if (!document_)
document_ = owning_contents_->AnyOwnerDocument();
if (!context_->IsDocumentHandleEqual(document_))
context_ = MakeGarbageCollected<CSSParserContext>(context_, document_);
return context_;
}
void CSSLazyParsingState::Trace(blink::Visitor* visitor) {
visitor->Trace(owning_contents_);
visitor->Trace(document_);
visitor->Trace(context_);
}
} // namespace blink
|