Bug #38374 --> foundation for helper app architecture.

Not part of the build yet. review will come when this is ready to go.

uriloader/exthandler/makefile.win

@@ -0,0 +1,60 @@
+# The contents of this file are subject to the Netscape Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/NPL/
+#
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+#
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1999 Netscape Communications Corporation. All
+# Rights Reserved.
+#
+# Contributor(s): 
+
+MODULE = exthandler
+
+DIRS=win
+
+DEPTH = ..\..
+include <$(DEPTH)/config/config.mak>
+
+include <$(DEPTH)\config\config.mak>
+
+################################################################################
+## exports
+
+
+XPIDLSRCS=						                \
+    .\nsIExternalHelperAppService.idl \
+    .\nsCExternalHelperApp.idl        \
+		$(NULL)
+
+LIBRARY_NAME=exthandlers_s
+
+CPP_OBJS =                            \
+        .\$(OBJDIR)\nsExternalHelperAppService.obj   \
+        $(NULL)
+
+INCS = $(INCS)                  \
+        -I$(DEPTH)\dist\include \
+        $(NULL)
+
+LLIBS=                                    \
+		    $(DIST)\lib\extprotocolwin_s.lib	\
+        $(NULL)
+
+WIN_LIBS= shell32.lib
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(LIBRARY)
+	$(MAKE_INSTALL) $(LIBRARY) $(DIST)\lib
+
+clobber::
+        rm -f $(DIST)\lib\$(LIBRARY_NAME).lib

uriloader/exthandler/nsExternalHelperAppService.cpp

@@ -0,0 +1,98 @@
+/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is the Mozilla browser.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications, Inc.  Portions created by Netscape are
+ * Copyright (C) 1999, Mozilla.  All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Scott MacGregor <mscott@netscape.com>
+ */
+
+#include "nsExternalHelperAppService.h"
+#include "nsIURI.h"
+#include "nsIFile.h"
+#include "nsIStreamListener.h"
+
+NS_IMPL_THREADSAFE_ADDREF(nsExternalHelperAppService)
+NS_IMPL_THREADSAFE_RELEASE(nsExternalHelperAppService)
+
+NS_INTERFACE_MAP_BEGIN(nsExternalHelperAppService)
+   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIExternalHelperAppService)
+   NS_INTERFACE_MAP_ENTRY(nsIExternalHelperAppService)
+NS_INTERFACE_MAP_END_THREADSAFE
+
+nsExternalHelperAppService::nsExternalHelperAppService()
+{
+  NS_INIT_ISUPPORTS();
+}
+
+nsExternalHelperAppService::~nsExternalHelperAppService()
+{
+}
+
+/* boolean canHandleContent (in string aMimeContentType); */
+NS_IMETHODIMP nsExternalHelperAppService::CanHandleContent(const char *aMimeContentType, PRBool *_retval)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* nsIStreamListener doContent (in string aMimeContentType, in nsIURI aURI, in nsISupports aWindowContext, out boolean aAbortProcess); */
+NS_IMETHODIMP nsExternalHelperAppService::DoContent(const char *aMimeContentType, nsIURI *aURI, nsISupports *aWindowContext, PRBool *aAbortProcess, nsIStreamListener **_retval)
+{
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////
+// begin external app handler implementation 
+//////////////////////////////////////////////////////////////////////////////////////////////////////
+
+NS_IMPL_THREADSAFE_ADDREF(nsExternalAppHandler)
+NS_IMPL_THREADSAFE_RELEASE(nsExternalAppHandler)
+
+NS_INTERFACE_MAP_BEGIN(nsExternalAppHandler)
+   NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStreamListener)
+   NS_INTERFACE_MAP_ENTRY(nsIStreamListener)
+   NS_INTERFACE_MAP_ENTRY(nsIStreamObserver)
+NS_INTERFACE_MAP_END_THREADSAFE
+
+nsExternalAppHandler::nsExternalAppHandler()
+{
+  NS_INIT_ISUPPORTS();
+}
+
+nsExternalAppHandler::~nsExternalAppHandler()
+{
+}
+
+NS_IMETHODIMP nsExternalAppHandler::OnStartRequest(nsIChannel * aChannel, nsISupports * aCtxt)
+{
+  // create a temp file for the data...and open it for writing.
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsExternalAppHandler::OnDataAvailable(nsIChannel * aChannel, nsISupports * aCtxt,
+                                                  nsIInputStream * inStr, PRUint32 sourceOffset, PRUint32 count)
+{
+  // read the data out of the stream and write it to the temp file.
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsExternalAppHandler::OnStopRequest(nsIChannel * aChannel, nsISupports *aCtxt, 
+                                                nsresult aStatus, const PRUnichar * errorMsg)
+{
+  // go ahead and execute the application passing in our temp file as an argument
+  return NS_OK;
+}
+

uriloader/exthandler/nsExternalHelperAppService.h

@@ -0,0 +1,64 @@
+/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is the Mozilla browser.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications, Inc.  Portions created by Netscape are
+ * Copyright (C) 1999, Mozilla.  All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Scott MacGregor <mscott@netscape.com>
+ */
+
+#ifndef nsExternalHelperAppService_h__
+#define nsExternalHelperAppService_h__
+
+#include "nsIExternalHelperAppService.h"
+#include "nsIStreamListener.h"
+#include "nsIFile.h"
+#include "nsCOMPtr.h"
+
+class nsExternalHelperAppService : public nsIExternalHelperAppService
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIEXTERNALHELPERAPPSERVICE
+
+  nsExternalHelperAppService();
+  virtual ~nsExternalHelperAppService();
+
+protected:
+
+};
+
+// An external app handler is just a small little class that presents itself as 
+// a nsIStreamListener. It saves the incoming data into a temp file. The handler
+// is bound to an application when it is created. When it receives an OnStopRequest
+// it launches the application using the temp file it has stored the data into.
+
+class nsExternalAppHandler : public nsIStreamListener
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSISTREAMLISTENER
+  NS_DECL_NSISTREAMOBSERVER
+
+  nsExternalAppHandler();
+  virtual ~nsExternalAppHandler();
+
+protected:
+  nsCOMPtr<nsIFile> mTempFile;
+
+};
+
+#endif // nsExternalHelperAppService_h__

uriloader/exthandler/nsIExternalHelperAppService.idl

@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Mozilla Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/MPL/
+ * 
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ * 
+ * The Original Code is the Mozilla browser.
+ * 
+ * The Initial Developer of the Original Code is Netscape
+ * Communications, Inc.  Portions created by Netscape are
+ * Copyright (C) 1999, Mozilla.  All Rights Reserved.
+ * 
+ * Contributor(s):
+ *   Scott MacGregor <mscott@netscape.com>
+ */
+
+/* The external helper app service is used for finding and launching
+   platform specific external applications for a given mime content type.
+ */
+
+#include "nsISupports.idl"
+
+interface nsIURI;
+interface nsIStreamListener;
+interface nsIFile;
+
+
+[scriptable, uuid(663CC0AA-42EA-11d4-98D0-001083010E9B)]
+interface nsIExternalHelperAppService : nsISupports
+{
+  // canHandleContent: determines if we have an external helper application for a given mime type
+  // aMimeContentType --> the specified mime type we are attempting to get a helper application for
+  // returns TRUE if we have such an app and FALSE otherwise.
+  boolean canHandleContent (in string aMimeContentType); 
+
+  // doContent: binds an external helper application to a stream listener. The caller should pump data
+  // into the returned stream listener. When the OnStopRequest is issued, the stream listener implementation
+  // will launch the helper app with this data.
+  // aMimeContentType --> the content type of the incoming data
+  // aURI --> the URI corresponding to the incoming data
+  // aWindowContext --> use GetInterface to retrieve properties like the dom window or parent window...
+  //                    the service might need this in order to bring up dialogs.
+  // aAbortProcess --> set to TRUE by the helper service if the caller should just forget about loading the document
+  //                   (typically this occurs if the helper app just wants the URI to run and not the data)
+  // returns a nsIStreamListener which the caller should pump the data into.
+  nsIStreamListener doContent (in string aMimeContentType, in nsIURI aURI, 
+                               in nsISupports aWindowContext, out boolean aAbortProcess); 
+};

uriloader/exthandler/win/makefile.win

@@ -0,0 +1,45 @@
+#!gmake
+#
+# The contents of this file are subject to the Netscape Public
+# License Version 1.1 (the "License"); you may not use this file
+# except in compliance with the License. You may obtain a copy of
+# the License at http://www.mozilla.org/NPL/
+#
+# Software distributed under the License is distributed on an "AS
+# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+#
+# The Original Code is mozilla.org code.
+#
+# The Initial Developer of the Original Code is Netscape
+# Communications Corporation.  Portions created by Netscape are
+# Copyright (C) 1998 Netscape Communications Corporation. All
+# Rights Reserved.
+#
+# Contributor(s): 
+
+DEPTH=..\..\..
+MODULE=exthandler
+
+LIBRARY_NAME=exthandlerwin_s
+
+CPP_OBJS=\
+        .\$(OBJDIR)\nsOSHelperAppService.obj  	\
+        $(NULL)
+
+INCS = $(INCS)                  \
+        -I$(DEPTH)\dist\include \
+        -I..\       	         	\
+		$(NULL)
+
+
+include <$(DEPTH)\config\rules.mak>
+
+install:: $(LIBRARY)
+        $(MAKE_INSTALL) $(LIBRARY) $(DIST)\lib
+         
+
+clobber::
+	rm -f $(DIST)\lib\$(LIBRARY_NAME).lib
+