public InternalHandle setInterval(V8Engine engine,
bool isConstructCall,
InternalHandle _this,
params InternalHandle[] args)
{
if (isConstructCall)
{
return(_this);
}
else
{
if (args != null && args.Length == 2)
{
InternalHandle timerCallback = args[0];
InternalHandle milliseconds = args[1];
if (milliseconds != null && milliseconds.IsInt32 && timerCallback != null && timerCallback.IsFunction)
{
int ms = milliseconds.AsInt32;
string sourceFragment = timerCallback.Value.ToString();
System.Timers.Timer tmr = new System.Timers.Timer();
tmr.Interval = milliseconds.AsInt32;
tmr.Elapsed += (object sender, System.Timers.ElapsedEventArgs e) =>
{
if (!engine.IsDisposed)
{
try
{
engine.Execute("____$=" + sourceFragment + ";____$();", ScriptingEngine.SOURCE_NAME, false);
}
catch { }
}
else
{
tmr.Stop();
}
};
tmr.Start();
timers.Add(tmr);
Handle timerHandle = engine.CreateValue(timers.Count - 1);
return(timerHandle);
}
}
}
return(InternalHandle.Empty);
}
public InternalHandle showDevTools(V8Engine engine, bool isConstructCall, InternalHandle _this, InternalHandle[] args)
{
if (browser != null)
{
//var host = browser.GetHost();
//var wi = CefWindowInfo.Create();
//var parentWindowHandle = NativeMethods.gdk_x11_drawable_get_xid(IntPtr.Zero);
//wi.SetAsChild(parentWindowHandle, new CefRectangle(0, 0, 0, 0));
//host.ShowDevTools(wi, new WebClient(null), new CefBrowserSettings(), new CefPoint(0, 0));
}
return(Engine.CreateNullValue());
}
/// <summary>
/// JavaScript callback. Returns character indexes of selected text: object with <code>start</code>
/// and <code>end</code> properties.If there's no selection, should return object with
/// <code>start</code> and <code>end</code> properties referring to current caret position.
/// </summary>
public InternalHandle GetSelectionRange(
V8Engine engine,
bool isConstructCall,
InternalHandle self,
params InternalHandle[] args)
{
var selection = _editor.GetSelectionRange();
ObjectHandle retVal = engine.CreateObject();
retVal.SetProperty("start", engine.CreateValue(selection.Start));
retVal.SetProperty("end", engine.CreateValue(selection.End));
return(retVal);
}
/// <summary>
/// JavaScript callback. Returns current selection.
/// </summary>
public InternalHandle GetSelection(
V8Engine engine,
bool isConstructCall,
InternalHandle self,
params InternalHandle[] args)
{
string selection = _editor.GetSelection();
if (string.IsNullOrEmpty(selection))
{
return(engine.CreateValue(string.Empty));
}
return(engine.CreateValue(selection));
}
/// <summary>
/// JavaScript callback. Asks user to enter something.
/// </summary>
public InternalHandle Prompt(
V8Engine engine,
bool isConstructCall,
InternalHandle self,
params InternalHandle[] args)
{
string input = _editor.Prompt();
if (string.IsNullOrWhiteSpace(input))
{
return(engine.CreateNullValue());
}
return(engine.CreateValue(input));
}
/// <summary>
/// 执行js V8方法
/// </summary>
/// <param name="reString">Js代码</param>
/// <param name="para">参数字符串(使用逗号分隔)</param>
/// <param name="MethodName">方法名称</param>
public static string V8Method(string reString, string para, string MethodName)
{
V8Engine engine = V8Engine.Create(); //创建V8对象
V8Script script = engine.Compile(reString); //编译
try
{
engine.Execute(script); //将编译的脚本加载到V8引擎中
string res = engine.Execute(string.Format("{0}({1})", MethodName, para)).ToString(); //执行结果
return(res);
}
catch (Exception ex)
{
return(ex.Message);//异常信息
}
}
/// <summary>
/// JavaScript callback. Returns file extension in lower case.
/// </summary>
public InternalHandle GetExtension(
V8Engine engine,
bool isConstructorCall,
InternalHandle self,
params InternalHandle[] args)
{
if (args.Length != 1)
{
this.TraceError("IEmmetFile getExt called with invalid number of arguments.");
return(engine.CreateValue(false));
}
string filePath = args[0].AsString;
return(engine.CreateValue(Path.GetExtension(filePath).ToLowerInvariant()));
}
private void InitializeEngine()
{
this.Trace("Started initializing Emmet engine.");
_engine = new V8Engine();
var compiler = new EngineCompiler(_engine);
compiler.CompileCore();
compiler.RegisterCallbacks(_editor);
if (null != _extensionsDir)
{
compiler.LoadExtensions(_extensionsDir);
}
this.Trace("Emmet engine successfully initialized.");
}
/// <summary>
/// JavaScript callback. Saves the specified content to the file with the specified name.
/// </summary>
public InternalHandle Save(
V8Engine engine,
bool isConstructorCall,
InternalHandle self,
params InternalHandle[] args)
{
if (args.Length != 2)
{
this.TraceError("IEmmetFile save called with invalid number of arguments.");
return(engine.CreateValue(false));
}
string filePath = args[0].AsString;
string content = args[1].AsString;
File.WriteAllText(filePath, content);
return(engine.CreateValue(true));
}
/// <summary>
/// JavaScript callback. Creates selection from <code>start</code> to <code>end</code> character
/// indexes. If <code>end</code> is omitted, this method should place caret and <code>start</code>
/// index.
/// </summary>
public InternalHandle CreateSelection(
V8Engine engine,
bool isConstructCall,
InternalHandle self,
params InternalHandle[] args)
{
if (args.Length == 2)
{
int start = args[0].AsInt32;
int end = args[0].AsInt32;
_editor.CreateSelection(start, end);
}
else
{
return(SetCarretPos(engine, isConstructCall, self, args));
}
return(engine.CreateValue(true));
}
public InternalHandle TestJSFunction1(V8Engine engine, bool isConstructCall, InternalHandle _this, params InternalHandle[] args)
{
// ... there can be two different returns based on the call mode! ...
// (tip: if a new object is created and returned instead (such as V8ManagedObject or an object derived from it), then that object will be the new object (instead of "_this"))
if (isConstructCall)
{
var obj = engine.GetObject(_this);
obj.AsDynamic.x = args[0];
((dynamic)obj).y = 0; // (native objects in this case will always be V8NativeObject dynamic objects)
obj.SetProperty(0, engine.CreateValue(100));
obj.SetProperty("1", engine.CreateValue(100.2));
obj.SetProperty("2", engine.CreateValue("300"));
obj.SetProperty(4, engine.CreateValue(new DateTime(2013, 1, 2, 3, 4, 5, DateTimeKind.Utc)));
return(_this);
}
else
{
return(args.Length > 0 ? args[0] : InternalHandle.Empty);
}
}
public static IEngine GetCarEngine(string choice)
{
IEngine carEngine = null;
switch (choice)
{
case "1":
carEngine = new V4Engine();
carEngine.SetEngineType(TypeOfEngine.V4);
carEngine.SetMaximumSpeed(100);
break;
case "2":
carEngine = new V8Engine();
carEngine.SetEngineType(TypeOfEngine.V8);
carEngine.SetMaximumSpeed(200);
break;
case "3":
carEngine = new GLXEngine();
carEngine.SetEngineType(TypeOfEngine.GLX);
carEngine.SetMaximumSpeed(80);
break;
}
return carEngine;
}
