xref: /external/chromium_org/third_party/WebKit/Source/bindings/v8/V8NPObject.h

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#ifndef V8NPObject_h
#define V8NPObject_h

#include <bindings/npruntime.h>
#include <v8.h>

namespace WebCore {

// These functions can be replaced by normal JS operation.
// Getters
void npObjectNamedPropertyGetter(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>&);
void npObjectIndexedPropertyGetter(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>&);
void npObjectGetNamedProperty(v8::Local<v8::Object> self, v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>&);
void npObjectGetIndexedProperty(v8::Local<v8::Object> self, uint32_t index, const v8::PropertyCallbackInfo<v8::Value>&);

// Setters
void npObjectNamedPropertySetter(v8::Local<v8::String> name, v8::Local<v8::Value>, const v8::PropertyCallbackInfo<v8::Value>&);
void npObjectIndexedPropertySetter(uint32_t index, const v8::PropertyCallbackInfo<v8::Value>&);
void npObjectSetNamedProperty(v8::Local<v8::Object> self, v8::Local<v8::String> name, v8::Local<v8::Value>, const v8::PropertyCallbackInfo<v8::Value>&);
void npObjectSetIndexedProperty(v8::Local<v8::Object> self, uint32_t index, v8::Local<v8::Value>, const v8::PropertyCallbackInfo<v8::Value>&);

void npObjectInvokeDefaultHandler(const v8::FunctionCallbackInfo<v8::Value>&);

// Get a wrapper for a NPObject.
// If the object is already wrapped, the pre-existing wrapper will be returned. If the object is not wrapped, wrap it, and
// give V8 a weak reference to the wrapper which will cleanup when there are no more JS references to the object.
v8::Local<v8::Object> createV8ObjectForNPObject(NPObject*, NPObject* root, v8::Isolate*);

// Tell V8 to forcibly remove an object.
// This is used at plugin teardown so that the caller can aggressively unload the plugin library. After calling this
// function, the persistent handle to the wrapper will be gone, and the wrapped NPObject will be removed so that it
// cannot be referred to.
void forgetV8ObjectForNPObject(NPObject*);

// De-associate an NPObject with the current JS wrapper, but preserve the backward connection from the wrapper to NPObject.
// This allows to have a single NPObject to be called from several wrappers, so each context can have its own wrapper.
void dropV8WrapperForNPObject(NPObject*);

} // namespace WebCore

#endif // V8NPObject_h