/// <summary>
/// Create a new V8 plugin adapter.
/// </summary>
/// <param name="pluginObject">
/// The local or remote native plugin to adapt to V8.
/// </param>
/// <param name="v8HostObject">
/// Optional - if supplied, the adapter will add the native methods and events to this
/// existing object instead of creating a new one with a property accessor.
/// </param>
private V8PluginAdapter(IV8Plugin pluginObject, CefV8Value v8HostObject = null)
{
Plugin = pluginObject;
V8Object = v8HostObject;
if (V8Object == null)
{
V8Object = CefV8Value.CreateObject(new PluginV8Accessor());
V8Object.SetUserData(this);
}
// Create a single method handler configured to handle all methods on the plugin
var methodHandler = new PluginMethodV8Handler(Plugin);
foreach (var methodDescriptor in Plugin.Descriptor.Methods)
{
V8Object.SetValue(methodDescriptor.MethodName,
CefV8Value.CreateFunction(methodDescriptor.MethodName, methodHandler),
CefV8PropertyAttribute.None);
}
foreach (var eventName in Plugin.Descriptor.Events)
{
// For each event, create a child object exposed as a property named after the event
// The child object is a syntactic placeholder for the addListener/removeListener/hasListener/hasListeners methods
var eventObject = CefV8Value.CreateObject(null);
var eventHandler = new PluginEventV8Handler(Plugin, eventName);
eventObject.SetValue(PluginEventV8Handler.MethodNameAddListener,
CefV8Value.CreateFunction(PluginEventV8Handler.MethodNameAddListener, eventHandler),
CefV8PropertyAttribute.None);
eventObject.SetValue(PluginEventV8Handler.MethodNameRemoveListener,
CefV8Value.CreateFunction(PluginEventV8Handler.MethodNameRemoveListener, eventHandler),
CefV8PropertyAttribute.None);
eventObject.SetValue(PluginEventV8Handler.MethodNameHasListener,
CefV8Value.CreateFunction(PluginEventV8Handler.MethodNameHasListener, eventHandler),
CefV8PropertyAttribute.None);
eventObject.SetValue(PluginEventV8Handler.MethodNameHasListeners,
CefV8Value.CreateFunction(PluginEventV8Handler.MethodNameHasListeners, eventHandler),
CefV8PropertyAttribute.None);
V8Object.SetValue(eventName, eventObject, CefV8PropertyAttribute.None);
}
}
/// <summary>
/// 绑定数据并注册对象
/// 说明：已经过滤特殊名称，即不含系统自动生成的属性、方法
/// </summary>
/// <param name="name">对象名称</param>
/// <param name="obj">需要绑定的对象</param>
/// <param name="window">用于注册的V8 JS引擎对象，类似于整个程序的窗口句柄</param>
public static void Bind(string name, object obj, CefV8Value window)
{
var unmanagedWrapper = new UnmanagedWrapper(obj);
var propertyAccessor = new PropertyAccessor();
//javascript对象包
CefV8Value javascriptWrapper = CefV8Value.CreateObject(propertyAccessor);
//将非托管对象放到javascript对象包
javascriptWrapper.SetUserData(unmanagedWrapper);
var handler = new BindingHandler();
unmanagedWrapper.Properties = GetProperties(obj.GetType());
CreateJavascriptProperties(javascriptWrapper, unmanagedWrapper.Properties);
IList <string> methodNames = GetMethodNames(obj.GetType(), unmanagedWrapper.Properties);
CreateJavascriptMethods(handler, javascriptWrapper, methodNames);
window.SetValue(name, javascriptWrapper, CefV8PropertyAttribute.None);
}