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Side by Side Diff: third_party/WebKit/Source/modules/csspaint/PaintWorklet.cpp

Issue 2912743002: [WIP] Worklet: Merge MainThreadWorklet and ThreadedWorklet into Worklet
Patch Set: WIP Created 3 years, 6 months ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved. 1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "modules/csspaint/PaintWorklet.h" 5 #include "modules/csspaint/PaintWorklet.h"
6 6
7 #include "bindings/core/v8/V8BindingForCore.h" 7 #include "bindings/core/v8/V8BindingForCore.h"
8 #include "core/dom/Document.h" 8 #include "core/dom/Document.h"
9 #include "core/frame/LocalFrame.h" 9 #include "core/frame/LocalFrame.h"
10 #include "modules/csspaint/PaintWorkletGlobalScope.h" 10 #include "modules/csspaint/PaintWorkletGlobalScope.h"
11 11
12 namespace blink { 12 namespace blink {
13 13
14 // static 14 // static
15 PaintWorklet* PaintWorklet::Create(LocalFrame* frame) { 15 PaintWorklet* PaintWorklet::Create(LocalFrame* frame) {
16 return new PaintWorklet(frame); 16 return new PaintWorklet(frame);
17 } 17 }
18 18
19 PaintWorklet::PaintWorklet(LocalFrame* frame) 19 PaintWorklet::PaintWorklet(LocalFrame* frame)
20 : MainThreadWorklet(frame), 20 : Worklet(frame),
21 pending_generator_registry_(new PaintWorkletPendingGeneratorRegistry) {} 21 pending_generator_registry_(new PaintWorkletPendingGeneratorRegistry) {}
22 22
23 PaintWorklet::~PaintWorklet() = default; 23 PaintWorklet::~PaintWorklet() = default;
24 24
25 CSSPaintDefinition* PaintWorklet::FindDefinition(const String& name) { 25 CSSPaintDefinition* PaintWorklet::FindDefinition(const String& name) {
26 if (GetNumberOfGlobalScopes() == 0) 26 if (GetNumberOfGlobalScopes() == 0)
27 return nullptr; 27 return nullptr;
28 28
29 PaintWorkletGlobalScopeProxy* proxy = 29 PaintWorkletGlobalScopeProxy* proxy =
30 PaintWorkletGlobalScopeProxy::From(FindAvailableGlobalScope()); 30 PaintWorkletGlobalScopeProxy::From(FindAvailableGlobalScope());
31 return proxy->FindDefinition(name); 31 return proxy->FindDefinition(name);
32 } 32 }
33 33
34 void PaintWorklet::AddPendingGenerator(const String& name, 34 void PaintWorklet::AddPendingGenerator(const String& name,
35 CSSPaintImageGeneratorImpl* generator) { 35 CSSPaintImageGeneratorImpl* generator) {
36 pending_generator_registry_->AddPendingGenerator(name, generator); 36 pending_generator_registry_->AddPendingGenerator(name, generator);
37 } 37 }
38 38
39 DEFINE_TRACE(PaintWorklet) { 39 DEFINE_TRACE(PaintWorklet) {
40 visitor->Trace(pending_generator_registry_); 40 visitor->Trace(pending_generator_registry_);
41 MainThreadWorklet::Trace(visitor); 41 Worklet::Trace(visitor);
42 } 42 }
43 43
44 bool PaintWorklet::NeedsToCreateGlobalScope() { 44 bool PaintWorklet::NeedsToCreateGlobalScope() {
45 // "The user agent must have, and select from at least two 45 // "The user agent must have, and select from at least two
46 // PaintWorkletGlobalScopes in the worklet's WorkletGlobalScopes list, unless 46 // PaintWorkletGlobalScopes in the worklet's WorkletGlobalScopes list, unless
47 // the user agent is under memory constraints." 47 // the user agent is under memory constraints."
48 // https://drafts.css-houdini.org/css-paint-api-1/#drawing-an-image 48 // https://drafts.css-houdini.org/css-paint-api-1/#drawing-an-image
49 // TODO(nhiroki): In the current impl, we create only one global scope. We 49 // TODO(nhiroki): In the current impl, we create only one global scope. We
50 // should create at least two global scopes as the spec. 50 // should create at least two global scopes as the spec.
51 return !GetNumberOfGlobalScopes(); 51 return !GetNumberOfGlobalScopes();
52 } 52 }
53 53
54 std::unique_ptr<WorkletGlobalScopeProxy> PaintWorklet::CreateGlobalScope() { 54 std::unique_ptr<WorkletGlobalScopeProxy> PaintWorklet::CreateGlobalScope() {
55 return WTF::MakeUnique<PaintWorkletGlobalScopeProxy>( 55 return WTF::MakeUnique<PaintWorkletGlobalScopeProxy>(
56 ToDocument(GetExecutionContext())->GetFrame(), 56 ToDocument(GetExecutionContext())->GetFrame(),
57 pending_generator_registry_); 57 pending_generator_registry_);
58 } 58 }
59 59
60 } // namespace blink 60 } // namespace blink
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