/// <summary>
/// Destroys object
/// </summary>
/// <param name="disposing">Flag, allowing destruction of
/// managed objects contained in fields of class</param>
private void Dispose(bool disposing)
{
if (!_disposed)
{
_disposed = true;
_lastException = null;
if (_siteItems != null)
{
_siteItems.Clear();
_siteItems = null;
}
if (_dispatch != null)
{
ComHelpers.ReleaseComObject(ref _dispatch, !disposing);
_dispatch = null;
}
if (_activeScriptParse != null)
{
_activeScriptParse.Dispose();
_activeScriptParse = null;
}
_activeScript = null;
}
}
protected ActiveScriptJavascriptRuntimeBase(IActiveScript scriptEngine)
{
ScriptEngine = scriptEngine;
ScriptEngine.SetScriptSite(this);
JsParse = new ActiveScriptParseWrapper(ScriptEngine);
JsParse.InitNew();
}
/// <summary>
/// Constructs an instance of the ActiveScript JavaScript engine
/// </summary>
/// <param name="clsid">CLSID of JavaScript engine</param>
/// <param name="engineMode">JavaScript engine mode</param>
/// <param name="lowerIeVersion">Lowest supported version of Internet Explorer</param>
/// <param name="languageVersion">Version of script language</param>
/// <param name="useEcmaScript5Polyfill">Flag for whether to use the ECMAScript 5 Polyfill</param>
/// <param name="useJson2Library">Flag for whether to use the JSON2 library</param>
protected ActiveScriptJsEngineBase(string clsid, JsEngineMode engineMode, string lowerIeVersion,
ScriptLanguageVersion languageVersion, bool useEcmaScript5Polyfill, bool useJson2Library)
{
_engineMode = engineMode;
_engineModeName = JsEngineModeHelpers.GetModeName(engineMode);
_documentVersion = DateTime.UtcNow.ToString("o");
_dispatcher.Invoke(() =>
{
_pActiveScript = IntPtr.Zero;
try
{
_pActiveScript = ComHelpers.CreateInstanceByClsid <IActiveScript>(clsid);
_activeScript = (IActiveScript)Marshal.GetObjectForIUnknown(_pActiveScript);
}
catch (Exception e)
{
throw new JsEngineLoadException(
string.Format(CommonStrings.Runtime_IeJsEngineNotLoaded,
_engineModeName, lowerIeVersion, e.Message), _engineModeName);
}
if (languageVersion != ScriptLanguageVersion.None)
{
var activeScriptProperty = _activeScript as IActiveScriptProperty;
if (activeScriptProperty != null)
{
object scriptLanguageVersion = (int)languageVersion;
uint result = activeScriptProperty.SetProperty((uint)ScriptProperty.InvokeVersioning,
IntPtr.Zero, ref scriptLanguageVersion);
if (result != (uint)ScriptHResult.Ok)
{
throw new JsEngineLoadException(
string.Format(NetFrameworkStrings.Runtime_ActiveScriptLanguageVersionSelectionFailed, languageVersion));
}
}
}
_activeScriptParse = new ActiveScriptParseWrapper(_pActiveScript, _activeScript);
_activeScriptParse.InitNew();
_pActiveScriptGarbageCollector = ComHelpers.QueryInterfaceNoThrow <IActiveScriptGarbageCollector>(_pActiveScript);
_activeScriptGarbageCollector = _activeScript as IActiveScriptGarbageCollector;
_activeScript.SetScriptSite(this);
_activeScript.SetScriptState(ScriptState.Started);
InitScriptDispatch();
});
LoadResources(useEcmaScript5Polyfill, useJson2Library);
}
/// <summary>
/// Constructs instance of <see cref="ActiveScriptSiteWrapper"/>
/// </summary>
/// <param name="pActiveScript">Pointer to an instance of native JavaScript engine</param>
/// <param name="activeScript">Instance of native JavaScript engine</param>
/// <param name="documentVersion">Host-defined document version string</param>
public ActiveScriptSiteWrapper(IntPtr pActiveScript, IActiveScript activeScript,
string documentVersion)
{
_activeScript = activeScript;
_activeScriptParse = new ActiveScriptParseWrapper(pActiveScript, _activeScript);
_activeScriptParse.InitNew();
_activeScript.SetScriptSite(this);
_activeScript.SetScriptState(ScriptState.Started);
InitScriptDispatch();
DocumentVersion = documentVersion;
}
/// <summary>
/// Constructs instance of <see cref="ActiveScriptSiteWrapper"/>
/// </summary>
/// <param name="pActiveScript">Pointer to an instance of native JavaScript engine</param>
/// <param name="activeScript">Instance of native JavaScript engine</param>
/// <param name="documentVersion">Host-defined document version string</param>
public ActiveScriptSiteWrapper(IntPtr pActiveScript, IActiveScript activeScript,
string documentVersion)
{
_activeScript = activeScript;
_activeScriptParse = new ActiveScriptParseWrapper(pActiveScript, _activeScript);
_activeScriptParse.InitNew();
_activeScript.SetScriptSite(this);
_activeScript.SetScriptState(ScriptState.Started);
InitScriptDispatch();
DocumentVersion = documentVersion;
}
/// <summary>
/// Destroys object
/// </summary>
/// <param name="disposing">Flag, allowing destruction of
/// managed objects contained in fields of class</param>
private void Dispose(bool disposing)
{
if (_disposedFlag.Set())
{
_dispatcher.Invoke(() =>
{
if (_dispatch != null)
{
ComHelpers.ReleaseComObject(ref _dispatch, !disposing);
_dispatch = null;
}
_activeScriptGarbageCollector = null;
ComHelpers.ReleaseAndEmpty(ref _pActiveScriptGarbageCollector);
if (_activeScriptParse != null)
{
_activeScriptParse.Dispose();
_activeScriptParse = null;
}
if (_activeScript != null)
{
_activeScript.Close();
Marshal.FinalReleaseComObject(_activeScript);
_activeScript = null;
}
ComHelpers.ReleaseAndEmpty(ref _pActiveScript);
});
if (disposing)
{
if (_hostItems != null)
{
_hostItems.Clear();
}
_lastException = null;
}
}
}
public void Initialize()
{
try {
// Prefer Chakra
_jsEngine = new ChakraJavaScriptEngine() as IActiveScript;
} catch (Exception e) {
// TODO: Make catch more specific
_jsEngine = null;
}
if (_jsEngine == null)
{
// No need to catch here - engine of last resort
_jsEngine = new JavaScriptEngine() as IActiveScript;
}
_jsEngine.SetScriptSite(this);
_jsParse = new ActiveScriptParseWrapper(_jsEngine);
_jsParse.InitNew();
}
public void Initialize()
{
try
{
// Prefer Chakra
jsEngine = new ChakraJavaScriptEngine() as IActiveScript;
}
catch
{
jsEngine = null;
}
if (jsEngine == null)
{
// No need to catch here - engine of last resort
jsEngine = new JavaScriptEngine() as IActiveScript;
}
jsEngine.SetScriptSite(this);
jsParse = new ActiveScriptParseWrapper(jsEngine);
jsParse.InitNew();
}
/// <summary>
/// Destroys object
/// </summary>
/// <param name="disposing">Flag, allowing destruction of
/// managed objects contained in fields of class</param>
private void Dispose(bool disposing)
{
if (!_disposed)
{
_disposed = true;
_lastException = null;
if (_siteItems != null)
{
_siteItems.Clear();
_siteItems = null;
}
if (_dispatch != null)
{
ComHelpers.ReleaseComObject(ref _dispatch, !disposing);
_dispatch = null;
}
if (_activeScriptParse != null)
{
_activeScriptParse.Dispose();
_activeScriptParse = null;
}
_activeScript = null;
}
}
