Index: third_party/WebKit/Source/modules/csspaint/PaintWorkletGlobalScope.cpp |
diff --git a/third_party/WebKit/Source/modules/csspaint/PaintWorkletGlobalScope.cpp b/third_party/WebKit/Source/modules/csspaint/PaintWorkletGlobalScope.cpp |
index 3509486acdcc5c825fc6d711b6085462ab25477a..03503342e5afa6bc554bc70e952b9c018eca54cb 100644 |
--- a/third_party/WebKit/Source/modules/csspaint/PaintWorkletGlobalScope.cpp |
+++ b/third_party/WebKit/Source/modules/csspaint/PaintWorkletGlobalScope.cpp |
@@ -4,8 +4,12 @@ |
#include "modules/csspaint/PaintWorkletGlobalScope.h" |
+#include "bindings/core/v8/ScopedPersistent.h" |
+#include "bindings/core/v8/V8BindingMacros.h" |
#include "bindings/core/v8/WorkerOrWorkletScriptController.h" |
+#include "core/dom/ExceptionCode.h" |
#include "core/inspector/MainThreadDebugger.h" |
+#include "modules/csspaint/CSSPaintDefinition.h" |
namespace blink { |
@@ -27,4 +31,91 @@ PaintWorkletGlobalScope::~PaintWorkletGlobalScope() |
{ |
} |
+void PaintWorkletGlobalScope::dispose() |
+{ |
+ // Explicitly clear the paint defininitions to break a reference cycle |
+ // between them and this global scope. |
+ m_paintDefinitions.clear(); |
+ |
+ WorkletGlobalScope::dispose(); |
+} |
+ |
+void PaintWorkletGlobalScope::registerPaint(const String& name, const ScriptValue& ctorValue, ExceptionState& exceptionState) |
+{ |
+ if (m_paintDefinitions.contains(name)) { |
+ exceptionState.throwDOMException(NotSupportedError, "A class with name:'" + name + "' is already registered."); |
+ return; |
+ } |
+ |
+ if (name.isEmpty()) { |
+ exceptionState.throwTypeError("The empty string is not a valid name."); |
+ return; |
+ } |
+ |
+ v8::Isolate* isolate = scriptController()->getScriptState()->isolate(); |
+ v8::Local<v8::Context> context = scriptController()->context(); |
+ |
+ ASSERT(ctorValue.v8Value()->IsFunction()); |
+ v8::Local<v8::Function> constructor = v8::Local<v8::Function>::Cast(ctorValue.v8Value()); |
+ |
+ v8::Local<v8::Value> inputPropertiesValue; |
+ if (!v8Call(constructor->Get(context, v8String(isolate, "inputProperties")), inputPropertiesValue)) |
+ return; |
+ |
+ if (!isUndefinedOrNull(inputPropertiesValue)) { |
+ toImplArray<Vector<String>>(inputPropertiesValue, 0, isolate, exceptionState); |
+ |
+ if (exceptionState.hadException()) |
+ return; |
+ |
+ // TODO(ikilpatrick): Hook up invalidation based on these inputProperties. |
+ } |
+ |
+ v8::Local<v8::Value> prototypeValue; |
+ if (!v8Call(constructor->Get(context, v8String(isolate, "prototype")), prototypeValue)) |
+ return; |
+ |
+ if (isUndefinedOrNull(prototypeValue)) { |
+ exceptionState.throwTypeError("The 'prototype' object on the class does not exist."); |
+ return; |
+ } |
+ |
+ if (!prototypeValue->IsObject()) { |
+ exceptionState.throwTypeError("The 'prototype' property on the class is not an object."); |
+ return; |
+ } |
+ |
+ v8::Local<v8::Object> prototype = v8::Local<v8::Object>::Cast(prototypeValue); |
+ |
+ v8::Local<v8::Value> paintValue; |
+ if (!v8Call(prototype->Get(context, v8String(isolate, "paint")), paintValue)) |
+ return; |
+ |
+ if (isUndefinedOrNull(paintValue)) { |
+ exceptionState.throwTypeError("The 'paint' function on the prototype does not exist."); |
+ return; |
+ } |
+ |
+ if (!paintValue->IsFunction()) { |
+ exceptionState.throwTypeError("The 'paint' property on the prototype is not a function."); |
+ return; |
+ } |
+ |
+ v8::Local<v8::Function> paint = v8::Local<v8::Function>::Cast(paintValue); |
+ |
+ RawPtr<CSSPaintDefinition> definition = CSSPaintDefinition::create(scriptController()->getScriptState(), constructor, paint); |
+ m_paintDefinitions.set(name, definition); |
+} |
+ |
+CSSPaintDefinition* PaintWorkletGlobalScope::findDefinition(const String& name) |
+{ |
+ return m_paintDefinitions.get(name); |
+} |
+ |
+DEFINE_TRACE(PaintWorkletGlobalScope) |
+{ |
+ visitor->trace(m_paintDefinitions); |
+ WorkletGlobalScope::trace(visitor); |
+} |
+ |
} // namespace blink |