New files for XP-COM stream converter interface.

mailnews/mime/src/plugin_inst.cpp

@@ -0,0 +1,191 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+#include <stdio.h>
+#include <string.h>
+#include "plugin_inst.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// SimplePluginInstance Methods
+////////////////////////////////////////////////////////////////////////////////
+
+nsresult 
+NS_NewSimplePluginInstance(SimplePluginInstance **aInstancePtrResult)
+{
+	/* note this new macro for assertions...they can take 
+     a string describing the assertion */
+  nsresult res = NS_OK;
+	NS_PRECONDITION(nsnull != aInstancePtrResult, "nsnull ptr");
+	if (nsnull != aInstancePtrResult)
+	{
+    SimplePluginInstance* inst = new SimplePluginInstance();
+    if (inst == NULL)
+      return NS_ERROR_OUT_OF_MEMORY;
+
+    res = inst->QueryInterface(nsINetPluginInstance::IID(), (void **)aInstancePtrResult);
+    if (res != NS_OK)
+    {
+      *aInstancePtrResult = NULL;
+      delete inst;
+    }
+
+    return res;
+	}
+	else
+		return NS_ERROR_NULL_POINTER; /* aInstancePtrResult was NULL....*/
+}
+
+SimplePluginInstance::SimplePluginInstance(void)
+{
+    OutStream = NULL;
+    first_write = PR_FALSE;
+    NS_INIT_REFCNT();
+}
+
+SimplePluginInstance::~SimplePluginInstance(void)
+{
+}
+
+static NS_DEFINE_IID(kINetPluginInstanceIID, NS_INETPLUGININSTANCE_IID);
+static NS_DEFINE_IID(kINetOStreamIID, NS_INETOSTREAM_IID);
+static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
+
+NS_METHOD
+SimplePluginInstance::QueryInterface(const nsIID& aIID, void** aInstancePtr) 
+{
+  if (NULL == aInstancePtr)
+    return NS_ERROR_NULL_POINTER; 
+  
+  // Always NULL result, in case of failure   
+  *aInstancePtr = NULL;   
+  
+  if (aIID.Equals(kINetPluginInstanceIID))
+    *aInstancePtr = (void*) this; 
+  else if (aIID.Equals(kISupportsIID))
+    *aInstancePtr = (void*) ((nsISupports*)(nsINetPluginInstance *)this); 
+  else if (aIID.Equals(kINetOStreamIID))
+    *aInstancePtr = (void *)((nsINetOStream *)this);
+  
+  if (*aInstancePtr == NULL)
+    return NS_NOINTERFACE;
+  
+  AddRef(); // Increase reference count for caller   
+  return NS_OK;   
+}
+
+NS_IMPL_ADDREF(SimplePluginInstance);
+NS_IMPL_RELEASE(SimplePluginInstance);
+
+NS_METHOD
+SimplePluginInstance::Initialize(nsINetOStream* stream)
+{
+    OutStream = stream;
+
+    return NS_OK;
+}
+
+NS_METHOD
+SimplePluginInstance::GetMIMEOutput(const char* *result)
+{
+    *result = "text/html";
+    return NS_OK;
+}
+
+
+NS_METHOD
+SimplePluginInstance::Start(void)
+{
+    return NS_OK;
+}
+
+NS_METHOD
+SimplePluginInstance::Stop(void)
+{
+    return NS_OK;
+}
+
+NS_METHOD
+SimplePluginInstance::Destroy(void)
+{
+    return NS_OK;
+}
+
+nsresult SimplePluginInstance :: Complete(void)
+{
+	nsINetOStream *stream = OutStream;
+
+	if (stream)
+	{
+		if (first_write)
+		{
+			unsigned int written;
+			stream->Write("</pre>", 0, 6, &written);
+		}
+		return stream->Complete();
+	}
+	return NS_OK;
+}
+
+nsresult SimplePluginInstance :: Abort(PRInt32 status)
+{
+	nsINetOStream *stream = OutStream;
+
+	if (stream)
+	{
+		return stream->Abort(status);
+	}
+	return NS_OK;
+}
+
+nsresult SimplePluginInstance :: WriteReady(PRUint32 *aReadyCount)
+{
+	nsINetOStream *stream = OutStream;
+
+	if (stream)
+	{
+		return stream->WriteReady(aReadyCount);
+	}
+	return NS_OK;
+}
+
+nsresult SimplePluginInstance :: Write(const char* aBuf, PRUint32 aOffset, PRUint32 aCount, PRUint32 *aWriteCount)
+{
+	nsINetOStream *stream = OutStream;
+
+	if (stream)
+	{
+		if (!first_write)
+		{
+			unsigned int written;
+			stream->Write("<pre>", 0, 5, &written);
+			first_write = PR_TRUE;
+		}
+		return stream->Write(aBuf, aOffset, aCount, aWriteCount);
+	}
+	return NS_OK;
+}
+
+nsresult SimplePluginInstance::Close(void)
+{
+	nsINetOStream *stream = OutStream;
+
+	if (stream)
+	{
+		return stream->Close();
+	}
+	return NS_OK;
+}

mailnews/mime/src/plugin_inst.h

@@ -0,0 +1,72 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+#ifndef plugin_inst_h_
+#define plugin_inst_h_
+
+#include "nsINetOStream.h"
+#include "nsINetPluginInstance.h"
+
+// The ProgID for message/rfc822 messages
+#define	PROGRAM_ID	        MESSAGE_RFC822
+
+// {B21EDB21-D10C-11d2-B373-525400E2D63A}
+#define NS_INET_PLUGIN_MIME_CID          \
+    { 0xb21edb21, 0xd10c, 0x11d2,         \
+    { 0xb3, 0x73, 0x52, 0x54, 0x0, 0xe2, 0xd6, 0x3a } };
+
+class SimplePluginInstance : public nsINetPluginInstance, public nsINetOStream {
+public:
+//static const nsIID& IID() { static nsIID iid = NS_INETPLUGININSTANCE_IID; return iid; }
+ 
+    SimplePluginInstance(void);
+    virtual ~SimplePluginInstance(void);
+
+    NS_DECL_ISUPPORTS
+
+    // from nsINetPluginInstance
+    NS_IMETHOD    Initialize(nsINetOStream* out_stream);
+    NS_IMETHOD    GetMIMEOutput(const char* *result);
+    NS_IMETHOD    Start(void);
+    NS_IMETHOD    Stop(void);
+    NS_IMETHOD    Destroy(void);
+
+    //nsINetOStream interface
+    NS_IMETHOD    Complete(void);
+    NS_IMETHOD    Abort(PRInt32 status);
+    NS_IMETHOD    WriteReady(PRUint32 *aReadyCount);
+  
+    // nsIOutputStream interface
+    NS_IMETHOD    Write(const char *aBuf,
+                        PRUint32 aOffset,
+                        PRUint32 aLen,
+                        PRUint32 *aWriteLength);
+
+    // nsIBaseStream interface
+    NS_IMETHOD    Close(void);
+
+    ////////////////////////////////////////////////////////////////////////////
+    // SimplePluginInstance specific methods:
+protected:
+    nsINetOStream *OutStream;
+    PRBool         first_write;
+};
+
+/* this function will be used by the factory to generate an class access object....*/
+extern nsresult NS_NewSimplePluginInstance(SimplePluginInstance **aInstancePtrResult);
+
+#endif /* plugin_inst_h_ */