public void OnChange(string virtualPath)
{
lock (_syncObject)
{
try
{
var coder = XPCCoder.Create(virtualPath);
if (coder == null)
{
return;
}
coder.Generate();
XPCAssembly.Delete(coder.VirtualPath);//删除程序集
}
catch (Exception ex)
{
throw ex;
}
finally
{
//清空缓存
XamlUtil.RecoverMemory();
}
}
}
internal static void Generate(string virtualPath)
{
XPCCoder coder = XPCCoder.Create(virtualPath);
if (coder == null)
{
return;
}
coder.Generate();//生成代码
if (!IsIgnore(coder))
{
if (WriteCode(coder) || !XPCAssembly.Exists(coder))
{
try
{
//重新生成程序集
XPCAssembly.Compile(coder);
}
catch (Exception ex)
{
throw ex;
}
}
}
}
/// <summary>
/// 编译程序集
/// </summary>
/// <param name="coder"></param>
public static void Compile(XPCCoder coder)
{
var assemblyFileName = _getAssemblyFileName(coder.VirtualPath);
DeleteAssembly(assemblyFileName);
CodeCompiler.CompileCSharp(assemblyFileName, coder.UserPath, coder.GIPath, coder.GPath);
}
/// <summary>
/// 保存代码文件，如果成功保存，返回true，这意味着代码被更改
/// </summary>
/// <param name="coder"></param>
/// <returns></returns>
private static bool WriteCode(XPCCoder coder)
{
int count = 0;
if (WriteCode(coder.UserPath, coder.UserCode))
{
count++;
}
if (WriteCode(coder.GPath, coder.GCode))
{
count++;
}
if (WriteCode(coder.GIPath, coder.GICode))
{
count++;
}
return(count > 0);
}
/// <summary>
/// 获得xaml页面组件的类型
/// 所谓xaml页面组件，指的是站点自己创建的，与某个xaml页面相关的组件
/// 该组件一般会基于一个xaml组件做扩展
/// </summary>
/// <returns></returns>
private static Type GetXamlPageComponentType(HtmlNode node, string virtualPath)
{
var className = node.GetAttributeValue("x:Class", XPCCoder.GetClassName(virtualPath));
//var className = XPCCoder.GetClassName(virtualPath);
if (string.IsNullOrEmpty(className))
{
return(null);
}
if (className.IndexOf(".") == -1)
{
className = string.Format("App_Code.{0}", className); //没有指定命名空间，那么默认为App_Code的命名空间
}
var assembly = XPCAssembly.Load(virtualPath);
if (assembly == null)
{
return(null);
}
return(assembly.GetType(className, false, true));
//className = string.Format("{0},{1}", className, XPCCoder.App_CodeAssemblyName);
//return Type.GetType(className, false, true);
}
private static bool IsIgnore(XPCCoder coder)
{
return(!File.Exists(coder.UserPath) || !File.Exists(coder.GPath) || !File.Exists(coder.GIPath));
}
public static bool Exists(XPCCoder coder)
{
var assemblyFileName = _getAssemblyFileName(coder.VirtualPath);
return(File.Exists(assemblyFileName));
}
