copied the nsIUnicharStreamLoader interface and implementation over to necko; TEMPORARILY. This stuff does not belong in necko and needs to be factored out. I pushed it in to satisfy the NECKO builds.

1999-06-27 16:02:03 +00:00 · 1999-06-27 16:02:03 +00:00 · 5d97589deb
--- a/netwerk/util/public/Makefile.in
+++ b/netwerk/util/public/Makefile.in
@ -19,13 +19,14 @@ MODULE = necko

 DEPTH = ../../..

-topsrcdir	= @top_srcdir@
-srcdir		= @srcdir@
-VPATH		= @srcdir@
+topsrcdir   = @top_srcdir@
+srcdir      = @srcdir@
+VPATH       = @srcdir@

-EXPORTS =			\
-	nsNeckoUtil.h		\
-	$(NULL)
+EXPORTS =           \
+    nsIUnicharStreamLoader.h \
+    nsNeckoUtil.h       \
+    $(NULL)

 include $(DEPTH)/config/autoconf.mk

--- a/netwerk/util/public/makefile.win
+++ b/netwerk/util/public/makefile.win
@ -26,6 +26,7 @@ PUBLIC = $(DEPTH)\netwerk\dist\include
 !endif

 EXPORTS =             \
+        nsIUnicharStreamLoader.h \
        nsNeckoUtil.h \
        $(NULL)

--- a/netwerk/util/public/nsIUnicharStreamLoader.h
+++ b/netwerk/util/public/nsIUnicharStreamLoader.h
@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 2; 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 nsIUnicharStreamLoader_h___
+#define nsIUnicharStreamLoader_h___
+
+// XXX NECKO this interface belongs outside necko. I've temporarily ( ;) ) added it
+// to the necko util lib to satisfy the NECKO build. It needs to be factored out.
+
+
+#include "nsISupports.h"
+#include "nsString.h"
+
+#define NS_IUNICHARSTREAMLOADER_IID      \
+  {0xa6cf90d8, 0x15b3,  0x11d2,          \
+  {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
+
+class nsIUnicharStreamLoader;
+class nsIURI;
+
+/**
+ * Funtion registered with the stream loader. This function is called
+ * when the stream is done loading (or has aborted).
+ *
+ * @param aLoader the loader
+ * @param aData the result of the load as a unicode character string
+ * @param aRef the opaque data passed to the loader
+ * @param aStatus the completion status of the stream
+ */
+typedef void (*nsStreamCompleteFunc)(nsIUnicharStreamLoader* aLoader,
+				     nsString& aData,
+				     void* aRef,
+				     nsresult aStatus);
+
+/**
+ * The purpose of this interface is to provide a mechanism for a
+ * byte stream to be loaded asynchronously from a URL, the stream 
+ * data to be accumulated, and the result to be returned as a
+ * unicode character string.
+ */
+class nsIUnicharStreamLoader : public nsISupports {
+public:
+  /**
+   * Get the number of bytes read so far.
+   * 
+   * @param aNumBytes out parameter to get number of unicode 
+   *                  characters read.
+   */
+  NS_IMETHOD GetNumCharsRead(PRInt32* aNumChars) = 0;
+};
+
+/**
+ * Start loading the specified URL and accumulating the stream data.
+ * When the stream is completed, the result is sent to the complete
+ * function as a unicode character string.
+ *
+ * @param aInstancePtrResult new stream loader
+ * @param aURL the URL to load
+ * @param aFunc the function to call on termination of stream loading
+ * @param aRef an opaque value that will later be sent to the termination
+ *             function
+ */
+extern NS_NET nsresult NS_NewUnicharStreamLoader(nsIUnicharStreamLoader** aInstancePtrResult,
+						 nsIURI* aURL,
+						 nsStreamCompleteFunc aFunc,
+						 void* aRef);
+
+#endif /* nsIUnicharStreamLoader_h___ */
--- a/netwerk/util/src/Makefile.in
+++ b/netwerk/util/src/Makefile.in
@ -15,19 +15,20 @@

 DEPTH = ../../..

-topsrcdir	= @top_srcdir@
-srcdir		= @srcdir@
-VPATH		= @srcdir@
+topsrcdir   = @top_srcdir@
+srcdir      = @srcdir@
+VPATH       = @srcdir@

 LIBRARY_NAME = neckoutil_s

 include $(DEPTH)/config/autoconf.mk

-CPPSRCS =				\
-	nsNeckoUtil.cpp		\
+CPPSRCS =               \
+    nsNetStreamLoader.cpp \
+    nsNeckoUtil.cpp     \
        $(NULL)

-EXPORTS =			   \
+EXPORTS =              \
        $(NULL)

 EXPORTS := $(addprefix $(srcdir)/, $(EXPORTS))
--- a/netwerk/util/src/makefile.win
+++ b/netwerk/util/src/makefile.win
@ -28,6 +28,7 @@ LCFLAGS = -DWIN32_LEAN_AND_MEAN -D_IMPL_NS_NET
 LIBRARY_NAME=neckoutil_s

 CPP_OBJS =                          \
+        .\$(OBJDIR)\nsNetStreamLoader.obj \
        .\$(OBJDIR)\nsNeckoUtil.obj \
        $(NULL)

@ -38,7 +39,7 @@ INCS = $(INCS)                  \
 include <$(DEPTH)\config\rules.mak>

 libs:: $(LIBRARY)
-	$(MAKE_INSTALL) $(LIBRARY) $(DIST)\lib
+    $(MAKE_INSTALL) $(LIBRARY) $(DIST)\lib

 clobber::
        rm -f $(DIST)\lib\$(LIBRARY_NAME).lib
--- a/netwerk/util/src/nsNetStreamLoader.cpp
+++ b/netwerk/util/src/nsNetStreamLoader.cpp
@ -0,0 +1,228 @@
+/* -*- Mode: C++; tab-width: 2; 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.
+ */
+
+// XXX NECKO this class belongs outside necko. I've temporarily ( ;) ) added it
+// to the necko util lib to satisfy the NECKO build. It needs to be factored out.
+
+#include "nsIUnicharStreamLoader.h"
+#include "nsIStreamListener.h"
+#include "nsIInputStream.h"
+#include "nsIURL.h"
+#include "nsNeckoUtil.h"
+#include "nsIBufferInputStream.h"
+
+static NS_DEFINE_IID(kISupportsIID,     NS_ISUPPORTS_IID);
+static NS_DEFINE_IID(kIStreamListenerIID,  NS_ISTREAMLISTENER_IID);
+static NS_DEFINE_IID(kIUnicharStreamLoaderIID,  NS_IUNICHARSTREAMLOADER_IID);
+
+class nsUnicharStreamLoader : public nsIUnicharStreamLoader,
+                              public nsIStreamListener
+{
+public:
+  nsUnicharStreamLoader(nsIURI* aURL,
+                        nsStreamCompleteFunc aFunc,
+                        void* aRef);
+  virtual ~nsUnicharStreamLoader();
+
+  NS_DECL_ISUPPORTS
+  
+  // nsIUnicharStreamLoader methods
+  NS_IMETHOD GetNumCharsRead(PRInt32* aNumBytes);
+
+  // nsIStreamObserver methods
+  NS_IMETHOD OnStartBinding(nsISupports *ctxt);
+  NS_IMETHOD OnStopBinding(nsISupports *ctxt, nsresult status, const PRUnichar *errorMsg);
+  NS_IMETHOD OnStartRequest(nsISupports *ctxt);
+  NS_IMETHOD OnStopRequest(nsISupports *ctxt, nsresult status, const PRUnichar *errorMsg);
+
+  // nsIStreamListener methods
+  NS_IMETHOD OnDataAvailable(nsISupports *ctxt, nsIBufferInputStream *inStr, PRUint32 sourceOffset, PRUint32 count);
+
+#if 0
+  NS_IMETHOD GetBindInfo(nsIURI* aURL, nsStreamBindingInfo* aInfo);
+#endif // 0
+  
+protected:
+  nsStreamCompleteFunc mFunc;
+  void* mRef;
+  nsString* mData;
+};
+
+
+nsUnicharStreamLoader::nsUnicharStreamLoader(nsIURI* aURL,
+                                             nsStreamCompleteFunc aFunc,
+                                             void* aRef)
+{
+  NS_INIT_REFCNT();
+  mFunc = aFunc;
+  mRef = aRef;
+  mData = new nsString();
+
+  // XXX This is vile vile vile!!!
+  nsresult rv;
+  if (aURL) {
+    rv = NS_OpenURI(this, aURL);
+    if ((NS_OK != rv) && (nsnull != mFunc)) {
+      // Thou shalt not call out of scope whilst ones refcnt is zero
+      mRefCnt = 999;
+      (*mFunc)(this, *mData, mRef, rv);
+      mRefCnt = 0;
+    }
+  }
+}
+
+nsUnicharStreamLoader::~nsUnicharStreamLoader()
+{
+  if (nsnull != mData) {
+    delete mData;
+  }
+}
+
+NS_IMPL_ADDREF(nsUnicharStreamLoader)
+NS_IMPL_RELEASE(nsUnicharStreamLoader)
+
+nsresult 
+nsUnicharStreamLoader::QueryInterface(const nsIID &aIID, void** aInstancePtr)
+{
+  if (NULL == aInstancePtr) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  if (aIID.Equals(kIStreamListenerIID)) {
+    nsIStreamListener* tmp = this;
+    *aInstancePtr = (void*) tmp;
+    AddRef();
+    return NS_OK;
+  }
+  if (aIID.Equals(kIUnicharStreamLoaderIID)) {
+    nsIUnicharStreamLoader* tmp = this;
+    *aInstancePtr = (void*) tmp;
+    AddRef();
+    return NS_OK;
+  }
+  if (aIID.Equals(kISupportsIID)) {
+    nsIUnicharStreamLoader* tmp = this;
+    nsISupports* tmp2 = tmp;
+    *aInstancePtr = (void*) tmp2;
+    AddRef();
+    return NS_OK;
+  }
+
+  return NS_NOINTERFACE;
+}
+
+NS_IMETHODIMP 
+nsUnicharStreamLoader::GetNumCharsRead(PRInt32* aNumBytes)
+{
+  if (nsnull != mData) {
+    *aNumBytes = mData->Length();
+  }
+  else {
+    *aNumBytes = 0;
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP 
+nsUnicharStreamLoader::OnStartBinding(nsISupports *ctxt)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP 
+nsUnicharStreamLoader::OnStopBinding(nsISupports *ctxt, nsresult status, const PRUnichar *errorMsg)
+{
+  (*mFunc)(this, *mData, mRef, status);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsUnicharStreamLoader::OnStartRequest(nsISupports *ctxt)
+{
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsUnicharStreamLoader::OnStopRequest(nsISupports *ctxt, nsresult status, const PRUnichar *errorMsg)
+{
+  return NS_OK;
+}
+
+#if 0
+NS_IMETHODIMP 
+nsUnicharStreamLoader::GetBindInfo(nsIURI* aURL,
+                                   nsStreamBindingInfo* aInfo)
+{
+  return NS_OK;
+}
+#endif // 0
+
+#define BUF_SIZE 1024
+
+NS_IMETHODIMP 
+nsUnicharStreamLoader::OnDataAvailable(nsISupports *ctxt, 
+                                       nsIBufferInputStream *inStr, 
+                                       PRUint32 sourceOffset, PRUint32 count)
+{
+  nsresult rv = NS_OK;
+  char buffer[BUF_SIZE];
+  PRUint32 len, lenRead;
+  
+  inStr->GetLength(&len);
+
+  while (len > 0) {
+    if (len < BUF_SIZE) {
+      lenRead = len;
+    }
+    else {
+      lenRead = BUF_SIZE;
+    }
+
+    rv = inStr->Read(buffer, lenRead, &lenRead);
+    if (NS_OK != rv) {
+      return rv;
+    }
+
+    mData->Append(buffer, lenRead);
+    len -= lenRead;
+  }
+
+  return rv;
+}
+
+extern NS_NET nsresult 
+NS_NewUnicharStreamLoader(nsIUnicharStreamLoader** aInstancePtrResult,
+                          nsIURI* aURL,
+                          nsStreamCompleteFunc aFunc,
+                          void* aRef)
+{
+  NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
+  if (nsnull == aInstancePtrResult) {
+    return NS_ERROR_NULL_POINTER;
+  }
+
+  nsUnicharStreamLoader* it = new nsUnicharStreamLoader(aURL,
+                                                        aFunc,
+                                                        aRef);
+  if (nsnull == it) {
+    return NS_ERROR_OUT_OF_MEMORY;
+  }
+  return it->QueryInterface(kIUnicharStreamLoaderIID, 
+                            (void **) aInstancePtrResult);
+}