electron/atom/browser/api/event.cc
2018-04-18 20:48:45 -04:00

80 lines
2.2 KiB
C++

// Copyright (c) 2014 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.
#include "atom/browser/api/event.h"
#include "atom/common/api/api_messages.h"
#include "atom/common/native_mate_converters/string16_converter.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/web_contents.h"
#include "native_mate/object_template_builder.h"
namespace mate {
Event::Event(v8::Isolate* isolate) : sender_(nullptr), message_(nullptr) {
Init(isolate);
}
Event::~Event() {}
void Event::SetSenderAndMessage(content::RenderFrameHost* sender,
IPC::Message* message) {
DCHECK(!sender_);
DCHECK(!message_);
sender_ = sender;
message_ = message;
Observe(content::WebContents::FromRenderFrameHost(sender));
}
void Event::RenderFrameDeleted(content::RenderFrameHost* rfh) {
if (sender_ != rfh)
return;
sender_ = nullptr;
message_ = nullptr;
}
void Event::RenderFrameHostChanged(content::RenderFrameHost* old_rfh,
content::RenderFrameHost* new_rfh) {
if (sender_ && sender_ == old_rfh)
sender_ = new_rfh;
}
void Event::FrameDeleted(content::RenderFrameHost* rfh) {
if (sender_ != rfh)
return;
sender_ = nullptr;
message_ = nullptr;
}
void Event::PreventDefault(v8::Isolate* isolate) {
GetWrapper()->Set(StringToV8(isolate, "defaultPrevented"), v8::True(isolate));
}
bool Event::SendReply(const base::string16& json) {
if (message_ == nullptr || sender_ == nullptr)
return false;
AtomFrameHostMsg_Message_Sync::WriteReplyParams(message_, json);
bool success = sender_->Send(message_);
message_ = nullptr;
sender_ = nullptr;
return success;
}
// static
Handle<Event> Event::Create(v8::Isolate* isolate) {
return mate::CreateHandle(isolate, new Event(isolate));
}
// static
void Event::BuildPrototype(v8::Isolate* isolate,
v8::Local<v8::FunctionTemplate> prototype) {
prototype->SetClassName(mate::StringToV8(isolate, "Event"));
mate::ObjectTemplateBuilder(isolate, prototype->PrototypeTemplate())
.SetMethod("preventDefault", &Event::PreventDefault)
.SetMethod("sendReply", &Event::SendReply);
}
} // namespace mate