PaintWorkletGlobalScope.h [plain text]
#pragma once
#if ENABLE(CSS_PAINTING_API)
#include "CSSPaintCallback.h"
#include "WorkletGlobalScope.h"
#include <JavaScriptCore/JSObject.h>
#include <JavaScriptCore/Strong.h>
namespace JSC {
class JSObject;
}
namespace WebCore {
class JSDOMGlobalObject;
class PaintWorkletGlobalScope : public WorkletGlobalScope {
public:
static Ref<PaintWorkletGlobalScope> create(Document&, ScriptSourceCode&&);
ExceptionOr<void> registerPaint(JSC::ExecState&, JSDOMGlobalObject&, const String& name, JSC::Strong<JSC::JSObject> paintConstructor);
double devicePixelRatio() const;
struct PaintDefinition : public CanMakeWeakPtr<PaintDefinition> {
PaintDefinition(const AtomicString& name, JSC::JSObject* paintConstructor, Ref<CSSPaintCallback>&&, Vector<String>&& inputProperties, Vector<String>&& inputArguments);
const AtomicString name;
const JSC::JSObject* const paintConstructor;
const Ref<CSSPaintCallback> paintCallback;
const Vector<String> inputProperties;
const Vector<String> inputArguments;
};
HashMap<String, std::unique_ptr<PaintDefinition>>& paintDefinitionMap() { ASSERT(m_paintDefinitionLock.isLocked()); return m_paintDefinitionMap; }
Lock& paintDefinitionLock() { return m_paintDefinitionLock; }
void prepareForDestruction() final
{
{
auto locker = holdLock(paintDefinitionLock());
paintDefinitionMap().clear();
}
WorkletGlobalScope::prepareForDestruction();
}
private:
PaintWorkletGlobalScope(Document&, ScriptSourceCode&&);
~PaintWorkletGlobalScope()
{
#if !ASSERT_DISABLED
auto locker = holdLock(paintDefinitionLock());
ASSERT(paintDefinitionMap().isEmpty());
#endif
}
bool isPaintWorkletGlobalScope() const final { return true; }
HashMap<String, std::unique_ptr<PaintDefinition>> m_paintDefinitionMap;
Lock m_paintDefinitionLock;
};
}
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::PaintWorkletGlobalScope)
static bool isType(const WebCore::ScriptExecutionContext& context) { return is<WebCore::WorkletGlobalScope>(context) && downcast<WebCore::WorkletGlobalScope>(context).isPaintWorkletGlobalScope(); }
static bool isType(const WebCore::WorkletGlobalScope& context) { return context.isPaintWorkletGlobalScope(); }
SPECIALIZE_TYPE_TRAITS_END()
#endif // ENABLE(CSS_PAINTING_API)