OLD | NEW |
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 : MainThreadWorklet(frame), |
21 global_scope_proxy_( | 21 pending_generator_registry_(new PaintWorkletPendingGeneratorRegistry) {} |
22 WTF::MakeUnique<PaintWorkletGlobalScopeProxy>(frame)) {} | |
23 | 22 |
24 PaintWorklet::~PaintWorklet() = default; | 23 PaintWorklet::~PaintWorklet() = default; |
25 | 24 |
26 WorkletGlobalScopeProxy* PaintWorklet::GetWorkletGlobalScopeProxy() const { | 25 CSSPaintDefinition* PaintWorklet::FindDefinition(const String& name) { |
27 return global_scope_proxy_.get(); | 26 if (GetGlobalScopeManager().GetNumberOfGlobalScopes() == 0) |
28 } | 27 return nullptr; |
29 | 28 |
30 CSSPaintDefinition* PaintWorklet::FindDefinition(const String& name) { | 29 PaintWorkletGlobalScopeProxy* proxy = PaintWorkletGlobalScopeProxy::From( |
31 return global_scope_proxy_->FindDefinition(name); | 30 GetGlobalScopeManager().FindAvailableGlobalScope()); |
| 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 return global_scope_proxy_->AddPendingGenerator(name, generator); | 36 if (GetGlobalScopeManager().GetNumberOfGlobalScopes() == 0) { |
| 37 pending_generator_registry_->AddPendingGenerator(name, generator); |
| 38 return; |
| 39 } |
| 40 |
| 41 PaintWorkletGlobalScopeProxy* proxy = PaintWorkletGlobalScopeProxy::From( |
| 42 GetGlobalScopeManager().FindAvailableGlobalScope()); |
| 43 proxy->AddPendingGenerator(name, generator); |
37 } | 44 } |
38 | 45 |
39 DEFINE_TRACE(PaintWorklet) { | 46 DEFINE_TRACE(PaintWorklet) { |
| 47 visitor->Trace(pending_generator_registry_); |
40 MainThreadWorklet::Trace(visitor); | 48 MainThreadWorklet::Trace(visitor); |
41 } | 49 } |
42 | 50 |
| 51 bool PaintWorklet::NeedsToCreateGlobalScope() { |
| 52 // "The user agent must have, and select from at least two |
| 53 // PaintWorkletGlobalScopes in the worklet's WorkletGlobalScopes list, unless |
| 54 // the user agent is under memory constraints." |
| 55 // https://drafts.css-houdini.org/css-paint-api-1/#drawing-an-image |
| 56 // TODO(nhiroki): In the current impl, we create only one global scope. We |
| 57 // should create at least two global scopes as the spec. |
| 58 return GetGlobalScopeManager().GetNumberOfGlobalScopes(); |
| 59 } |
| 60 |
| 61 std::unique_ptr<WorkletGlobalScopeProxy> PaintWorklet::CreateGlobalScope() { |
| 62 LocalFrame* frame = ToDocument(GetExecutionContext())->GetFrame(); |
| 63 auto proxy = WTF::MakeUnique<PaintWorkletGlobalScopeProxy>(frame); |
| 64 if (GetGlobalScopeManager().GetNumberOfGlobalScopes() == 0) { |
| 65 proxy->global_scope()->SetPendingGeneratorRegistry( |
| 66 pending_generator_registry_); |
| 67 pending_generator_registry_ = nullptr; |
| 68 } |
| 69 return std::move(proxy); |
| 70 } |
| 71 |
43 } // namespace blink | 72 } // namespace blink |
OLD | NEW |