/// <summary>
/// 将 Code 属性中的脚本作为一个代码块写入指定的目标中, 如果指定关键字的代码块已经在目标中存在, 则不写入.
/// </summary>
/// <param name="holder">表示脚本写入目标的对象, 可以是 ASPXScriptHolder 或者 RazorScriptHolder, 分别表示 aspx 和 cshtml 页面.</param>
/// <param name="key">用于在生成过程中区分代码块的关键字.</param>
/// <param name="option">生成选项, 目前 EndResponse 无效, Startup 表示在页面尾部写入代码块, 而 None 表示在页面头部写入. (此选项对 Razor 无效)</param>
public void Build ( ScriptHolder holder, string key, ScriptBuildOption option )
#endif
{
if ( null == holder || this.code == string.Empty || IsBuilt ( holder, key, option ) )
return;
string type;
switch ( this.scriptType )
{
case ScriptType.JavaScript:
default:
type = "text/javascript";
break;
}
string script;
// HACK: 可能需要添加 V5
#if V4
if ( option.HasFlag ( ScriptBuildOption.OnlyCode ) )
#else
if ( ( option & ScriptBuildOption.OnlyCode ) == ScriptBuildOption.OnlyCode )
#endif
script = this.code;
else
script = string.Format ( "<script language='{0}' type='{1}'>\n{2}\n</script>", this.scriptType.ToString ( ).ToLower ( ), type, this.code );
key = MakeKey ( key );
// HACK: 可能需要添加 V5
#if V4
if ( option.HasFlag ( ScriptBuildOption.Startup ) )
#else
if ( ( option & ScriptBuildOption.Startup ) == ScriptBuildOption.Startup )
#endif
holder.RegisterStartupScript ( key, script );
else
holder.RegisterClientScriptBlock ( key, script );
// if ( option.HasFlag ( ScriptBuildOption.EndResponse ) && null != page.Response )
// page.Response.End ();
}
/// <summary>
/// Determine whether the code block with the specified name already exists?
/// </summary>
/// <param name="holder">Container page of the code block, which can be ASPXScriptHolder or RazorScriptHolder.</param>
/// <param name="key">Keyword used to differentiate between code blocks in the build process.</param>
/// <param name="option">Script generation options, which can be None, Startup. (Not valid for Razor)</param>
/// <returns>The code block exist?</returns>
#elif HANS
/// <summary>
/// 判断指定名称的代码块是否已经存在?
/// </summary>
/// <param name="holder">代码块所在的容器页面, 可以是 ASPXScriptHolder 或者 RazorScriptHolder.</param>
/// <param name="key">用于在生成过程中区分代码块的关键字.</param>
/// <param name="option">脚本的生成选项, 可以是 None, Startup. (对 Razor 无效)</param>
/// <returns>是否存在代码块?</returns>
#endif
#endregion
public static bool IsBuilt ( ScriptHolder holder, string key, ScriptBuildOption option )
#endif
{
if ( null == holder )
return false;
// HACK: You may need to add the V5
#if V4
if ( option.HasFlag ( ScriptBuildOption.Startup ) )
#else
if ( ( option & ScriptBuildOption.Startup ) == ScriptBuildOption.Startup )
#endif
return holder.IsStartupScriptRegistered ( MakeKey ( key ) );
else
return holder.IsClientScriptBlockRegistered ( MakeKey ( key ) );
}