ef4b36d621
The underlying V8::String is represented in UTF18, by using string16 in IPC messages we can avoid the overhead of encode conversion.
70 lines
1.7 KiB
C++
70 lines
1.7 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 "common/string16_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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: prevent_default_(false) {
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}
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Event::~Event() {
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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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}
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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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// static
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string16 Event::GetReturnValue(v8::Handle<v8::Object> event) {
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v8::HandleScope scope;
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v8::Local<v8::Value> json = event->Get(v8::String::New("returnValue"));
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return V8ValueToUTF16(json);
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}
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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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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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} // namespace api
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} // namespace atom
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