81 lines
2.2 KiB
C++
81 lines
2.2 KiB
C++
// Copyright (c) 2013 GitHub, Inc. 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 file.
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#include "atom/common/api/atom_api_event_emitter.h"
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#include <vector>
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#include "atom/browser/api/atom_api_event.h"
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#include "atom/common/v8/native_type_conversions.h"
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#include "base/logging.h"
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#include "atom/common/v8/node_common.h"
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namespace atom {
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namespace api {
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EventEmitter::EventEmitter(v8::Handle<v8::Object> wrapper) {
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Wrap(wrapper);
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}
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EventEmitter::~EventEmitter() {
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// Use Locker in browser process.
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scoped_ptr<v8::Locker> locker;
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if (node::g_standalone_mode)
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locker.reset(new v8::Locker(node_isolate));
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// Clear the aligned pointer, it should have been done by ObjectWrap but
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// somehow node v0.11.x changed this behaviour.
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v8::HandleScope handle_scope(node_isolate);
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handle()->SetAlignedPointerInInternalField(0, NULL);
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}
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bool EventEmitter::Emit(const std::string& name) {
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base::ListValue args;
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return Emit(name, &args);
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}
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bool EventEmitter::Emit(const std::string& name, base::ListValue* args) {
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// Use Locker in browser process.
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scoped_ptr<v8::Locker> locker;
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if (node::g_standalone_mode)
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locker.reset(new v8::Locker(node_isolate));
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v8::HandleScope handle_scope(node_isolate);
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v8::Handle<v8::Context> context = v8::Context::GetCurrent();
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scoped_ptr<V8ValueConverter> converter(new V8ValueConverter);
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v8::Handle<v8::Object> v8_event = Event::CreateV8Object();
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Event* event = Event::Unwrap<Event>(v8_event);
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// Generate arguments for calling handle.emit.
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std::vector<v8::Handle<v8::Value>> v8_args;
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v8_args.reserve(args->GetSize() + 2);
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v8_args.push_back(ToV8Value(name));
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v8_args.push_back(v8_event);
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for (size_t i = 0; i < args->GetSize(); i++) {
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base::Value* value = NULL;
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if (args->Get(i, &value)) {
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DCHECK(value);
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v8_args.push_back(converter->ToV8Value(value, context));
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} else {
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NOTREACHED() << "Wrong offset " << i << " for " << *args;
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}
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}
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node::MakeCallback(handle(), "emit", v8_args.size(), &v8_args[0]);
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bool prevent_default = event->prevent_default();
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// Don't wait for V8 GC, delete it immediately.
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delete event;
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return prevent_default;
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}
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} // namespace api
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} // namespace atom
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