79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE.chromium file.
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#include "native_mate/wrappable.h"
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#include "base/logging.h"
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#include "native_mate/dictionary.h"
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#include "native_mate/object_template_builder.h"
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namespace mate {
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Wrappable::Wrappable() {
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}
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Wrappable::~Wrappable() {
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MATE_PERSISTENT_RESET(wrapper_);
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}
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void Wrappable::Wrap(v8::Isolate* isolate, v8::Handle<v8::Object> wrapper) {
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if (!wrapper_.IsEmpty())
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return;
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MATE_SET_INTERNAL_FIELD_POINTER(wrapper, 0, this);
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MATE_PERSISTENT_ASSIGN(v8::Object, isolate, wrapper_, wrapper);
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MATE_PERSISTENT_SET_WEAK(wrapper_, this, WeakCallback);
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// Call object._init if we have one.
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v8::Handle<v8::Function> init;
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if (Dictionary(isolate, wrapper).Get("_init", &init))
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init->Call(wrapper, 0, NULL);
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AfterInit(isolate);
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}
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// static
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void Wrappable::BuildPrototype(v8::Isolate* isolate,
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v8::Handle<v8::ObjectTemplate> prototype) {
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}
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ObjectTemplateBuilder Wrappable::GetObjectTemplateBuilder(
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v8::Isolate* isolate) {
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return ObjectTemplateBuilder(isolate);
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}
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// static
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MATE_WEAK_CALLBACK(Wrappable::WeakCallback, v8::Object, Wrappable) {
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MATE_WEAK_CALLBACK_INIT(Wrappable);
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MATE_PERSISTENT_RESET(self->wrapper_);
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delete self;
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}
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v8::Handle<v8::Object> Wrappable::GetWrapper(v8::Isolate* isolate) {
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if (!wrapper_.IsEmpty())
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return MATE_PERSISTENT_TO_LOCAL(v8::Object, isolate, wrapper_);
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v8::Local<v8::ObjectTemplate> templ =
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GetObjectTemplateBuilder(isolate).Build();
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CHECK(!templ.IsEmpty());
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CHECK_EQ(1, templ->InternalFieldCount());
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v8::Handle<v8::Object> wrapper = templ->NewInstance();
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Wrap(isolate, wrapper);
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return wrapper;
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}
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namespace internal {
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void* FromV8Impl(v8::Isolate* isolate, v8::Handle<v8::Value> val) {
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if (!val->IsObject())
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return NULL;
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v8::Handle<v8::Object> obj = v8::Handle<v8::Object>::Cast(val);
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if (obj->InternalFieldCount() != 1)
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return NULL;
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return MATE_GET_INTERNAL_FIELD_POINTER(obj, 0);
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}
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} // namespace internal
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} // namespace mate
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