static void init(Handle<Object> target) {
Gtknotify::Init(target);
}
// @see http://github.com/ry/node/blob/v0.2.0/src/node.h#L101
NODE_MODULE(gtknotify, init);
}
现在，我们必须把下面的代码编写到我们的Init()方法中：
声明构造函数，并将其绑定到我们的目标变量。var n = require(“notification”);将绑定notification() 到 n:n.notification().
// Wrap our C++ New() method so that it's accessible from Javascript
// This will be called by the new operator in Javascript, for example: new notification();
v8::Local<FunctionTemplate> local_function_template = v8::FunctionTemplate::New(New); // Make it persistent and assign it to persistent_function_template which is a static attribute of our class.
Gtknotify::persistent_function_template = v8::Persistent<FunctionTemplate>::New(local_function_template);
// Each JavaScript object keeps a reference to the C++ object for which it is a wrapper with an internal field.
Gtknotify::persistent_function_template->InstanceTemplate()->SetInternalFieldCount(1); // 1 since a constructor function only references 1 object
// Set a "class" name for objects created with our constructor
Gtknotify::persistent_function_template->SetClassName(v8::String::NewSymbol("Notification"));
// Set the "notification" property of our target variable and assign it to our constructor function
target->Set(String::NewSymbol("notification"), Gtknotify::persistent_function_template->GetFunction());
声明属性:n.title 和n.icon.
// Set property accessors
// SetAccessor arguments: Javascript property name, C++ method that will act as the getter, C++ method that will act as the setter
Gtknotify::persistent_function_template->InstanceTemplate()->SetAccessor(String::New("title"), GetTitle, SetTitle);
Gtknotify::persistent_function_template->InstanceTemplate()->SetAccessor(String::New("icon"), GetIcon, SetIcon);
// For instance, n.title = "foo" will now call SetTitle("foo"), n.title will now call GetTitle() 声明原型方法：n.send()
// This is a Node macro to help bind C++ methods to Javascript methods (see https://github.com/joyent/node/blob/v0.2.0/src/node.h#L34)
// Arguments: our constructor function, Javascript method name, C++ method name
NODE_SET_PROTOTYPE_METHOD(Gtknotify::persistent_function_template, "send", Send);现在我们的Init()方法看起来应该是这样的：
// Our constructor
static v8::Persistent<FunctionTemplate> persistent_function_template;
