private static void InitializeHostHtmlDocumentServiceProvider(DynamicScriptObject scriptObject)
        {
            // The service provider is used for Internet Explorer IDispatchEx use.
            if (IsHostedInIEorWebOC &&
                scriptObject.ScriptObject is UnsafeNativeMethods.IHTMLWindow4 &&
                _hostHtmlDocumentServiceProvider.Value == null)
            {
                // We use the IDispatch infrastructure to gain access to the document DOM node where
                // the IServiceProvider lives that was recommended to us by IE people. Notice during
                // this call the HostHtmlDocumentServiceProvider property here is still null, so this
                // first request is made (and succeeds properly) without the service provider in place.
                object document;
                bool   foundDoc = scriptObject.TryFindMemberAndInvokeNonWrapped("document",
                                                                                NativeMethods.DISPATCH_PROPERTYGET,
                                                                                true /* cache DISPID, why not? */,
                                                                                null, /* arguments */
                                                                                out document);

                // The fact the host script is required to be a IHTMLWindow4 here ensures there is
                // document property and because we're dealing with IE, we know it has a service
                // provider on it.
                Invariant.Assert(foundDoc);
                _hostHtmlDocumentServiceProvider.Value = (UnsafeNativeMethods.IServiceProvider)document;

                // See HostHtmlDocumentServiceProvider property get accessor for more information on the use of
                // this field to ensure we got a valid service provider.
                _initializedHostScript.Value = true;
            }
        }
 private static void InitializeHostHtmlDocumentServiceProvider(DynamicScriptObject scriptObject)
 {
     if (BrowserInteropHelper.IsHostedInIEorWebOC && scriptObject.ScriptObject is UnsafeNativeMethods.IHTMLWindow4 && BrowserInteropHelper._hostHtmlDocumentServiceProvider.Value == null)
     {
         object obj;
         bool   condition = scriptObject.TryFindMemberAndInvokeNonWrapped("document", 2, true, null, out obj);
         Invariant.Assert(condition);
         BrowserInteropHelper._hostHtmlDocumentServiceProvider.Value = (UnsafeNativeMethods.IServiceProvider)obj;
         BrowserInteropHelper._initializedHostScript.Value           = true;
     }
 }
 private bool TryFindMemberAndInvoke(string memberName, int flags, bool cacheDispId, object[] args, out object result)
 {
     if (!this.TryFindMemberAndInvokeNonWrapped(memberName, flags, cacheDispId, args, out result))
     {
         return(false);
     }
     if (result != null && Marshal.IsComObject(result))
     {
         result = new DynamicScriptObject((UnsafeNativeMethods.IDispatch)result);
     }
     return(true);
 }
        /// <summary>Sets a member on the script object to the specified value.</summary>
        /// <param name="binder">The binder provided by the call site.</param>
        /// <param name="value">The value to set for the member.</param>
        /// <returns>Always returns <see langword="true" />.</returns>
        /// <exception cref="T:System.ArgumentNullException">
        ///         <paramref name="binder" /> is <see langword="null" />.-or-
        ///         <paramref name="indexes" /> is <see langword="null" />.</exception>
        /// <exception cref="T:System.ArgumentException">The length of <paramref name="indexes" /> is not equal to 1.</exception>
        /// <exception cref="T:System.ArgumentOutOfRangeException">The first <paramref name="indexes" /> value is <see langword="null" />.</exception>
        /// <exception cref="T:System.MissingMemberException">The member does not exist.</exception>
        // Token: 0x060061E3 RID: 25059 RVA: 0x001B7378 File Offset: 0x001B5578
        public override bool TrySetMember(SetMemberBinder binder, object value)
        {
            if (binder == null)
            {
                throw new ArgumentNullException("binder");
            }
            int    propertyPutMethod = DynamicScriptObject.GetPropertyPutMethod(value);
            object obj = this.InvokeAndReturn(binder.Name, propertyPutMethod, new object[]
            {
                value
            });

            return(true);
        }
Exemple #5
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        private bool TryFindMemberAndInvoke(string memberName, int flags, bool cacheDispId, object[] args, out object result)
        {
            if (!TryFindMemberAndInvokeNonWrapped(memberName, flags, cacheDispId, args, out result))
            {
                return(false);
            }

            // Only wrap returned COM objects; if the object returns as a CLR object, we just return it.
            if (result != null && Marshal.IsComObject(result))
            {
                // Script objects implement IDispatch.
                result = new DynamicScriptObject((UnsafeNativeMethods.IDispatch)result);
            }

            return(true);
        }
        private bool TryFindMemberAndInvoke(string memberName, int flags, bool cacheDispId, object[] args, out object result)
        {
            if (!TryFindMemberAndInvokeNonWrapped(memberName, flags, cacheDispId, args, out result))
            {
                return false;
            }

            // Only wrap returned COM objects; if the object returns as a CLR object, we just return it.
            if (result != null && Marshal.IsComObject(result))
            {
                // Script objects implement IDispatch.
                result = new DynamicScriptObject((UnsafeNativeMethods.IDispatch)result);
            }

            return true;
        }
        private static void InitializeHostHtmlDocumentServiceProvider(DynamicScriptObject scriptObject) 
        { 
            // The service provider is used for Internet Explorer IDispatchEx use.
            if (   IsHostedInIEorWebOC 
                && scriptObject.ScriptObject is UnsafeNativeMethods.IHTMLWindow4
                && _hostHtmlDocumentServiceProvider.Value == null)
            {
                // We use the IDispatch infrastructure to gain access to the document DOM node where 
                // the IServiceProvider lives that was recommended to us by IE people. Notice during
                // this call the HostHtmlDocumentServiceProvider property here is still null, so this 
                // first request is made (and succeeds properly) without the service provider in place. 
                object document;
                bool foundDoc = scriptObject.TryFindMemberAndInvokeNonWrapped("document", 
                                                                              NativeMethods.DISPATCH_PROPERTYGET,
                                                                              true  /* cache DISPID, why not? */,
                                                                              null, /* arguments */
                                                                              out document); 

                // The fact the host script is required to be a IHTMLWindow4 here ensures there is 
                // document property and because we're dealing with IE, we know it has a service 
                // provider on it.
                Invariant.Assert(foundDoc); 
                _hostHtmlDocumentServiceProvider.Value = (UnsafeNativeMethods.IServiceProvider)document;

                // See HostHtmlDocumentServiceProvider property get accessor for more information on the use of
                // this field to ensure we got a valid service provider. 
                _initializedHostScript.Value = true;
            } 
        } 
        internal unsafe bool TryFindMemberAndInvokeNonWrapped(string memberName, int flags, bool cacheDispId, object[] args, out object result)
        {
            result = null;
            int dispid;

            if (!this.TryGetDispIdForMember(memberName, cacheDispId, out dispid))
            {
                return(false);
            }
            NativeMethods.DISPPARAMS dispparams = new NativeMethods.DISPPARAMS();
            int num = -3;

            if (flags == 4 || flags == 8)
            {
                dispparams.cNamedArgs        = 1U;
                dispparams.rgdispidNamedArgs = new IntPtr((void *)(&num));
            }
            try
            {
                if (args != null)
                {
                    args = (object[])args.Clone();
                    Array.Reverse(args);
                    for (int i = 0; i < args.Length; i++)
                    {
                        DynamicScriptObject dynamicScriptObject = args[i] as DynamicScriptObject;
                        if (dynamicScriptObject != null)
                        {
                            args[i] = dynamicScriptObject._scriptObject;
                        }
                        if (args[i] != null)
                        {
                            Type type = args[i].GetType();
                            if (type.IsArray)
                            {
                                type = type.GetElementType();
                            }
                            if (!Marshal.IsTypeVisibleFromCom(type) && !type.IsCOMObject && type != typeof(DateTime))
                            {
                                throw new ArgumentException(SR.Get("NeedToBeComVisible"));
                            }
                        }
                    }
                    dispparams.rgvarg = UnsafeNativeMethods.ArrayToVARIANTHelper.ArrayToVARIANTVector(args);
                    dispparams.cArgs  = (uint)args.Length;
                }
                NativeMethods.EXCEPINFO excepinfo = new NativeMethods.EXCEPINFO();
                HRESULT hrLeft = this.InvokeOnScriptObject(dispid, flags, dispparams, excepinfo, out result);
                if (hrLeft.Failed)
                {
                    if (hrLeft == HRESULT.DISP_E_MEMBERNOTFOUND)
                    {
                        return(false);
                    }
                    if (hrLeft == HRESULT.SCRIPT_E_REPORTED)
                    {
                        excepinfo.scode = hrLeft.Code;
                        hrLeft          = HRESULT.DISP_E_EXCEPTION;
                    }
                    string    text      = "[" + (memberName ?? "(default)") + "]";
                    Exception exception = hrLeft.GetException();
                    if (hrLeft == HRESULT.DISP_E_EXCEPTION)
                    {
                        int code = (excepinfo.scode != 0) ? excepinfo.scode : ((int)excepinfo.wCode);
                        hrLeft = HRESULT.Make(true, Facility.Dispatch, code);
                        string message = text + " " + (excepinfo.bstrDescription ?? string.Empty);
                        throw new TargetInvocationException(message, exception)
                              {
                                  HelpLink = excepinfo.bstrHelpFile,
                                  Source   = excepinfo.bstrSource
                              };
                    }
                    if (hrLeft == HRESULT.DISP_E_BADPARAMCOUNT || hrLeft == HRESULT.DISP_E_PARAMNOTOPTIONAL)
                    {
                        throw new TargetParameterCountException(text, exception);
                    }
                    if (hrLeft == HRESULT.DISP_E_OVERFLOW || hrLeft == HRESULT.DISP_E_TYPEMISMATCH)
                    {
                        throw new ArgumentException(text, new InvalidCastException(exception.Message, hrLeft.Code));
                    }
                    throw exception;
                }
            }
            finally
            {
                if (dispparams.rgvarg != IntPtr.Zero)
                {
                    UnsafeNativeMethods.ArrayToVARIANTHelper.FreeVARIANTVector(dispparams.rgvarg, args.Length);
                }
            }
            return(true);
        }