electron/browser/api/atom_api_dialog.cc
Cheng Zhao 5250871e69 Remove unneeded HandleScopes.
It's not necessary to create HandleScope in v8 native binding functions,
because it's guarrenteed that the there is a upper HandleScope when the
native function is called. So unless we are urgent to free the handles,
not using HandleScope in native binding functions is a cleaner and safer
choice.
2014-01-27 15:01:06 +08:00

139 lines
4 KiB
C++

// Copyright (c) 2013 GitHub, Inc. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "browser/api/atom_api_dialog.h"
#include "base/bind.h"
#include "browser/native_window.h"
#include "browser/ui/file_dialog.h"
#include "browser/ui/message_box.h"
#include "common/v8/node_common.h"
#include "common/v8/native_type_conversions.h"
namespace atom {
namespace api {
namespace {
template<typename T>
void CallV8Function(const RefCountedV8Function& callback, T arg) {
v8::HandleScope handle_scope(node_isolate);
v8::Handle<v8::Value> value = ToV8Value(arg);
callback->NewHandle(node_isolate)->Call(
v8::Context::GetCurrent()->Global(), 1, &value);
}
template<typename T>
void CallV8Function2(const RefCountedV8Function& callback, bool result, T arg) {
if (result)
return CallV8Function<T>(callback, arg);
else
return CallV8Function<void*>(callback, NULL);
}
void Initialize(v8::Handle<v8::Object> target) {
NODE_SET_METHOD(target, "showMessageBox", ShowMessageBox);
NODE_SET_METHOD(target, "showOpenDialog", ShowOpenDialog);
NODE_SET_METHOD(target, "showSaveDialog", ShowSaveDialog);
}
} // namespace
void ShowMessageBox(const v8::FunctionCallbackInfo<v8::Value>& args) {
int type;
std::vector<std::string> buttons;
std::string title, message, detail;
if (!FromV8Arguments(args, &type, &buttons, &title, &message, &detail))
return node::ThrowTypeError("Bad argument");
NativeWindow* native_window = FromV8Value(args[5]);
if (!args[6]->IsFunction()) {
int chosen = atom::ShowMessageBox(
native_window,
(MessageBoxType)type,
buttons,
title,
message,
detail);
args.GetReturnValue().Set(chosen);
} else {
RefCountedV8Function callback = FromV8Value(args[6]);
atom::ShowMessageBox(
native_window,
(MessageBoxType)type,
buttons,
title,
message,
detail,
base::Bind(&CallV8Function<int>, callback));
}
}
void ShowOpenDialog(const v8::FunctionCallbackInfo<v8::Value>& args) {
std::string title;
base::FilePath default_path;
int properties;
if (!FromV8Arguments(args, &title, &default_path, &properties))
return node::ThrowTypeError("Bad argument");
NativeWindow* native_window = FromV8Value(args[3]);
if (!args[4]->IsFunction()) {
std::vector<base::FilePath> paths;
if (!file_dialog::ShowOpenDialog(native_window,
title,
default_path,
properties,
&paths))
return;
v8::Handle<v8::Array> result = v8::Array::New(paths.size());
for (size_t i = 0; i < paths.size(); ++i)
result->Set(i, ToV8Value(paths[i]));
args.GetReturnValue().Set(result);
} else {
RefCountedV8Function callback = FromV8Value(args[4]);
file_dialog::ShowOpenDialog(
native_window,
title,
default_path,
properties,
base::Bind(&CallV8Function2<const std::vector<base::FilePath>&>,
callback));
}
}
void ShowSaveDialog(const v8::FunctionCallbackInfo<v8::Value>& args) {
std::string title;
base::FilePath default_path;
if (!FromV8Arguments(args, &title, &default_path))
return node::ThrowTypeError("Bad argument");
NativeWindow* native_window = FromV8Value(args[2]);
if (!args[3]->IsFunction()) {
base::FilePath path;
if (file_dialog::ShowSaveDialog(native_window,
title,
default_path,
&path))
args.GetReturnValue().Set(ToV8Value(path));
} else {
RefCountedV8Function callback = FromV8Value(args[3]);
file_dialog::ShowSaveDialog(
native_window,
title,
default_path,
base::Bind(&CallV8Function2<const base::FilePath&>, callback));
}
}
} // namespace api
} // namespace atom
NODE_MODULE(atom_browser_dialog, atom::api::Initialize)