112 lines
2.7 KiB
C++
112 lines
2.7 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 "browser/api/atom_api_event.h"
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#include "browser/native_window.h"
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#include "common/api/api_messages.h"
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#include "common/v8_conversions.h"
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using node::node_isolate;
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namespace atom {
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namespace api {
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v8::Persistent<v8::FunctionTemplate> Event::constructor_template_;
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Event::Event()
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: sender_(NULL),
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message_(NULL),
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prevent_default_(false) {
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}
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Event::~Event() {
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if (sender_ != NULL)
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sender_->RemoveObserver(this);
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}
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// static
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v8::Handle<v8::Object> Event::CreateV8Object() {
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v8::HandleScope scope;
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if (constructor_template_.IsEmpty()) {
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v8::Local<v8::FunctionTemplate> t = v8::FunctionTemplate::New(New);
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constructor_template_ = v8::Persistent<v8::FunctionTemplate>::New(
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node_isolate, t);
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constructor_template_->InstanceTemplate()->SetInternalFieldCount(1);
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constructor_template_->SetClassName(v8::String::NewSymbol("Event"));
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NODE_SET_PROTOTYPE_METHOD(t, "preventDefault", PreventDefault);
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NODE_SET_PROTOTYPE_METHOD(t, "sendReply", SendReply);
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NODE_SET_PROTOTYPE_METHOD(t, "destroy", Destroy);
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}
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v8::Handle<v8::Object> v8_event =
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constructor_template_->GetFunction()->NewInstance(0, NULL);
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return scope.Close(v8_event);
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}
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void Event::SetSenderAndMessage(NativeWindow* sender, IPC::Message* message) {
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DCHECK(!sender_);
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DCHECK(!message_);
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sender_ = sender;
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message_ = message;
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sender_->AddObserver(this);
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}
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void Event::OnWindowClosed() {
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sender_ = NULL;
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message_ = NULL;
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}
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// static
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v8::Handle<v8::Value> Event::New(const v8::Arguments& args) {
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Event* event = new Event;
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event->Wrap(args.This());
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return args.This();
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}
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// static
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v8::Handle<v8::Value> Event::PreventDefault(const v8::Arguments& args) {
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Event* event = Unwrap<Event>(args.This());
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if (event == NULL)
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return node::ThrowError("Event is already destroyed");
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event->prevent_default_ = true;
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return v8::Undefined();
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}
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// static
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v8::Handle<v8::Value> Event::SendReply(const v8::Arguments& args) {
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Event* event = Unwrap<Event>(args.This());
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if (event == NULL)
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return node::ThrowError("Event is already destroyed");
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if (event->message_ == NULL || event->sender_ == NULL)
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return node::ThrowError("Can only send reply to synchronous events");
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string16 json = FromV8Value(args[0]);
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AtomViewHostMsg_Message_Sync::WriteReplyParams(event->message_, json);
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event->sender_->Send(event->message_);
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delete event;
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return v8::Undefined();
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}
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// static
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v8::Handle<v8::Value> Event::Destroy(const v8::Arguments& args) {
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delete Unwrap<Event>(args.This());
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return v8::Undefined();
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}
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} // namespace api
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} // namespace atom
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