Bug #30157 --> add the ability to launch urls using OS default protocol handlers. (NOT PART OF THE BUILD)

code review will come when this is done and gets turned on.

add nsIExternalProtocolService support to the base class.

uriloader/exthandler/nsExternalHelperAppService.cpp

@@ -28,7 +28,7 @@
 #include "nsXPIDLString.h"
 #include "nsMemory.h"
 #include "nsIStreamListener.h"
-#include "nsCExternalHelperApp.h" // contains progids for the helper app service
+#include "nsCExternalHandlerService.h" // contains progids for the helper app service
 
 NS_IMPL_THREADSAFE_ADDREF(nsExternalHelperAppService)
 NS_IMPL_THREADSAFE_RELEASE(nsExternalHelperAppService)
@@ -37,6 +37,7 @@ NS_INTERFACE_MAP_BEGIN(nsExternalHelperAppService)
    NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIExternalHelperAppService)
    NS_INTERFACE_MAP_ENTRY(nsIExternalHelperAppService)
    NS_INTERFACE_MAP_ENTRY(nsPIExternalAppLauncher)
+   NS_INTERFACE_MAP_ENTRY(nsIExternalProtocolService)
 NS_INTERFACE_MAP_END_THREADSAFE
 
 nsExternalHelperAppService::nsExternalHelperAppService()
@@ -78,6 +79,23 @@ nsExternalAppHandler * nsExternalHelperAppService::CreateNewExternalHandler(nsIS
   return handler;
 }
 
+//////////////////////////////////////////////////////////////////////////////////////////////////////
+// begin external protocol service default implementation...
+//////////////////////////////////////////////////////////////////////////////////////////////////////
+NS_IMETHODIMP nsExternalHelperAppService::ExternalProtocolHandlerExists(const char * aProtocolScheme,
+                                                                        PRBool * aHandlerExists)
+{
+  // this method should only be implemented by each OS specific implementation of this service.
+  *aHandlerExists = PR_FALSE;
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsExternalHelperAppService::LoadUrl(nsIURI * aURL)
+{
+  // this method should only be implemented by each OS specific implementation of this service.
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
 //////////////////////////////////////////////////////////////////////////////////////////////////////
 // begin external app handler implementation 
 //////////////////////////////////////////////////////////////////////////////////////////////////////

uriloader/exthandler/nsExternalHelperAppService.h

@@ -24,6 +24,8 @@
 #define nsExternalHelperAppService_h__
 
 #include "nsIExternalHelperAppService.h"
+#include "nsIExternalProtocolService.h"
+
 #include "nsIStreamListener.h"
 #include "nsIFile.h"
 #include "nsIFileStreams.h"
@@ -33,12 +35,13 @@
 
 class nsExternalAppHandler;
 
-class nsExternalHelperAppService : public nsIExternalHelperAppService, nsPIExternalAppLauncher
+class nsExternalHelperAppService : public nsIExternalHelperAppService, public nsPIExternalAppLauncher, public nsIExternalProtocolService
 {
 public:
   NS_DECL_ISUPPORTS
   NS_DECL_NSIEXTERNALHELPERAPPSERVICE
   NS_DECL_NSPIEXTERNALAPPLAUNCHER
+  NS_DECL_NSIEXTERNALPROTOCOLSERVICE
 
   nsExternalHelperAppService();
   virtual ~nsExternalHelperAppService();