add new files for PICS and Charset observation, have not change makefile yet

git-svn-id: svn://10.0.0.236/trunk@28493 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/htmlparser/src/nsCharsetObserver.cpp

@@ -0,0 +1,118 @@
+/* -*- 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")=0; 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) 1999 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+
+
+#include "nsCharsetObserver.h"
+
+static NS_DEFINE_IID(kIElementObserverIID, NS_IELEMENTOBSERVER_IID);
+static NS_DEFINE_IID(kIObserverIID, NS_IOBSERVER_IID);
+static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
+
+
+nsCharsetObserver::nsCharsetObserver()
+{
+  NS_INIT_REFCNT();
+}
+nsCharsetObserver::~nsCharsetObserver()
+{
+}
+
+NS_IMPL_ADDREF ( nsCharsetObserver );
+NS_IMPL_RELEASE ( nsCharsetObserver );
+
+NS_IMETHODIMP nsCharsetObserver::QueryInterface(REFNSIID aIID, void** aInstancePtr)
+{
+
+  if( NULL == aInstancePtr) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  *aInstancePtr = NULL;
+
+  if( aIID.Equals ( kIElementObserverIID )) {
+    *aInstancePtr = (void*) ((nsIElementObserver*) this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+  if( aIID.Equals ( kIObserverIID )) {
+    *aInstancePtr = (void*) ((nsIObserver*) this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+
+  if( aIID.Equals ( kISupportsIID )) {
+    *aInstancePtr = (void*) (this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+  return NS_NOINTERFACE;
+}
+
+NS_IMETHODIMP nsCharsetObserver::GetTagName(nsString& oTag)
+{
+  oTag = "META";
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsCharsetObserver::Notify(const nsString& aTag, 
+                     PRUint32 numOfAttributes, 
+                     const nsString* nameArray, 
+                     const nsString* valueArray,
+                     PRBool *oContinue)
+{
+    nsresult res = NS_OK;
+    *oContinue = PR_TRUE; // be default, continue
+    if(aTag.EqualsIgnoreCase("META")) 
+    {
+      if((numOfAttributes >= 2) && 
+         (nameArray[0].EqualsIgnoreCase("HTTP-EQUIV")) &&
+         (valueArray[0].EqualsIgnoreCase("Content-Type")) && 
+         (nameArray[1].EqualsIgnoreCase("CONTENT")) ) 
+      {
+         nsAutoString type;
+         valueArray[2].Left(type, 9); // length of "text/html" == 9
+         if(type.EqualsIgnoreCase("text/html")) 
+         {
+            PRInt32 charsetValueStart = valueArray[2].RFind("charset=", PR_TRUE ) ;
+            if(kNotFound != charsetValueStart) {	
+                  charsetValueStart += 8; // 8 = "charset=".length 
+                  PRInt32 charsetValueEnd = valueArray[2].FindCharInSet("\'\";", charsetValueStart  );
+                  if(kNotFound == charsetValueEnd ) 
+                     charsetValueEnd = valueArray[2].Length();
+                  nsAutoString theCharset;
+                  valueArray[2].Mid(theCharset, charsetValueStart, charsetValueEnd - charsetValueStart);
+                  // XXX 
+                  // Get the charest in theCharset
+                  // Now, how can we verify the object, if
+                  // we pass the object  (nsScanner) when we create this object
+                  // then it mean we need to create one nsIElementObserver
+                  // for every nsParser object
+                  // However, currently we register ourself to a global
+                  // nsIObserverService, not to a nsParser. 
+                  
+             } // if
+         } // if
+      } // if
+    } // if
+    return res;
+}
+
+NS_IMETHODIMP Notify(nsISupports** result) 
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}

mozilla/htmlparser/src/nsCharsetObserver.h

@@ -0,0 +1,57 @@
+/* -*- 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")=0; 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) 1999 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+#ifndef nsCharsetObserver_h__
+#define nsCharsetObserver_h__
+
+
+#include "nsIElementObserver.h"
+#include "nsIObserver.h"
+#include "nsISupports.h"
+#include "nsString.h"
+#include "nsIParser.h"
+
+
+class nsCharsetObserver: public nsIElementObserver, public nsIObserver {
+  NS_DECL_ISUPPORTS
+
+public:
+
+  nsCharsetObserver();
+  virtual ~nsCharsetObserver();
+
+  /*
+   *   This method return the tag which the observer care about
+   */
+  NS_IMETHOD GetTagName(nsString& oTag);
+
+  /*
+   *   Subject call observer when the parser hit the tag
+   *   @param aTag- the tag
+   *   @param numOfAttributes - number of attributes
+   *   @param nameArray - array of name. 
+   *   @param valueArray - array of value
+   */
+  NS_IMETHOD Notify(const nsString& aTag, PRUint32 numOfAttributes, 
+                    const nsString* nameArray, const nsString* valueArray,
+                    PRBool* oContinue);
+
+  NS_IMETHOD Notify(nsISupports** result) = 0;
+};
+
+ 
+#endif /* nsCharsetObserver_h__ */

mozilla/htmlparser/src/nsIElementObserver.h

@@ -0,0 +1,61 @@
+/* -*- 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")=0; 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) 1999 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+
+/**
+ * MODULE NOTES:
+ * @update  ftang 4/20/99
+ * 
+ */
+
+#ifndef nsIElementObserver_h__
+#define nsIElementObserver_h__
+
+#include "nsISupports.h"
+#include "prtypes.h"
+class nsString;
+
+// {4672AA04-F6AE-11d2-B3B7-00805F8A6670}
+#define NS_IELEMENTOBSERVER_IID      \
+{ 0x4672aa04, 0xf6ae, 0x11d2, { 0xb3, 0xb7, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }
+
+
+#define NS_PARSER_SUBJECT "htmlparser"
+
+class nsIElementObserver : public nsISupports {
+public:
+  /*
+   *   This method return the tag which the observer care about
+   */
+  NS_IMETHOD GetTagName(nsString& oTag) = 0;
+
+  /*
+   *   Subject call observer when the parser hit the tag
+   *   @param aTag- the tag
+   *   @param numOfAttributes - number of attributes
+   *   @param nameArray - array of name. 
+   *   @param valueArray - array of value
+   */
+  NS_IMETHOD Notify(const nsString& aTag, PRUint32 numOfAttributes, 
+                    const nsString* nameArray, const nsString* valueArray,
+                    PRBool *oContinue) = 0;
+};
+
+
+#endif /* nsIElementObserver_h__ */
+

mozilla/parser/htmlparser/src/nsCharsetObserver.cpp

@@ -0,0 +1,118 @@
+/* -*- 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")=0; 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) 1999 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+
+
+#include "nsCharsetObserver.h"
+
+static NS_DEFINE_IID(kIElementObserverIID, NS_IELEMENTOBSERVER_IID);
+static NS_DEFINE_IID(kIObserverIID, NS_IOBSERVER_IID);
+static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
+
+
+nsCharsetObserver::nsCharsetObserver()
+{
+  NS_INIT_REFCNT();
+}
+nsCharsetObserver::~nsCharsetObserver()
+{
+}
+
+NS_IMPL_ADDREF ( nsCharsetObserver );
+NS_IMPL_RELEASE ( nsCharsetObserver );
+
+NS_IMETHODIMP nsCharsetObserver::QueryInterface(REFNSIID aIID, void** aInstancePtr)
+{
+
+  if( NULL == aInstancePtr) {
+    return NS_ERROR_NULL_POINTER;
+  }
+  *aInstancePtr = NULL;
+
+  if( aIID.Equals ( kIElementObserverIID )) {
+    *aInstancePtr = (void*) ((nsIElementObserver*) this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+  if( aIID.Equals ( kIObserverIID )) {
+    *aInstancePtr = (void*) ((nsIObserver*) this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+
+  if( aIID.Equals ( kISupportsIID )) {
+    *aInstancePtr = (void*) (this);
+    NS_ADDREF_THIS();
+    return NS_OK;
+  }
+  return NS_NOINTERFACE;
+}
+
+NS_IMETHODIMP nsCharsetObserver::GetTagName(nsString& oTag)
+{
+  oTag = "META";
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsCharsetObserver::Notify(const nsString& aTag, 
+                     PRUint32 numOfAttributes, 
+                     const nsString* nameArray, 
+                     const nsString* valueArray,
+                     PRBool *oContinue)
+{
+    nsresult res = NS_OK;
+    *oContinue = PR_TRUE; // be default, continue
+    if(aTag.EqualsIgnoreCase("META")) 
+    {
+      if((numOfAttributes >= 2) && 
+         (nameArray[0].EqualsIgnoreCase("HTTP-EQUIV")) &&
+         (valueArray[0].EqualsIgnoreCase("Content-Type")) && 
+         (nameArray[1].EqualsIgnoreCase("CONTENT")) ) 
+      {
+         nsAutoString type;
+         valueArray[2].Left(type, 9); // length of "text/html" == 9
+         if(type.EqualsIgnoreCase("text/html")) 
+         {
+            PRInt32 charsetValueStart = valueArray[2].RFind("charset=", PR_TRUE ) ;
+            if(kNotFound != charsetValueStart) {	
+                  charsetValueStart += 8; // 8 = "charset=".length 
+                  PRInt32 charsetValueEnd = valueArray[2].FindCharInSet("\'\";", charsetValueStart  );
+                  if(kNotFound == charsetValueEnd ) 
+                     charsetValueEnd = valueArray[2].Length();
+                  nsAutoString theCharset;
+                  valueArray[2].Mid(theCharset, charsetValueStart, charsetValueEnd - charsetValueStart);
+                  // XXX 
+                  // Get the charest in theCharset
+                  // Now, how can we verify the object, if
+                  // we pass the object  (nsScanner) when we create this object
+                  // then it mean we need to create one nsIElementObserver
+                  // for every nsParser object
+                  // However, currently we register ourself to a global
+                  // nsIObserverService, not to a nsParser. 
+                  
+             } // if
+         } // if
+      } // if
+    } // if
+    return res;
+}
+
+NS_IMETHODIMP Notify(nsISupports** result) 
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}

mozilla/parser/htmlparser/src/nsCharsetObserver.h

@@ -0,0 +1,57 @@
+/* -*- 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")=0; 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) 1999 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+#ifndef nsCharsetObserver_h__
+#define nsCharsetObserver_h__
+
+
+#include "nsIElementObserver.h"
+#include "nsIObserver.h"
+#include "nsISupports.h"
+#include "nsString.h"
+#include "nsIParser.h"
+
+
+class nsCharsetObserver: public nsIElementObserver, public nsIObserver {
+  NS_DECL_ISUPPORTS
+
+public:
+
+  nsCharsetObserver();
+  virtual ~nsCharsetObserver();
+
+  /*
+   *   This method return the tag which the observer care about
+   */
+  NS_IMETHOD GetTagName(nsString& oTag);
+
+  /*
+   *   Subject call observer when the parser hit the tag
+   *   @param aTag- the tag
+   *   @param numOfAttributes - number of attributes
+   *   @param nameArray - array of name. 
+   *   @param valueArray - array of value
+   */
+  NS_IMETHOD Notify(const nsString& aTag, PRUint32 numOfAttributes, 
+                    const nsString* nameArray, const nsString* valueArray,
+                    PRBool* oContinue);
+
+  NS_IMETHOD Notify(nsISupports** result) = 0;
+};
+
+ 
+#endif /* nsCharsetObserver_h__ */

mozilla/parser/htmlparser/src/nsIElementObserver.h

@@ -0,0 +1,61 @@
+/* -*- 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")=0; 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) 1999 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+
+/**
+ * MODULE NOTES:
+ * @update  ftang 4/20/99
+ * 
+ */
+
+#ifndef nsIElementObserver_h__
+#define nsIElementObserver_h__
+
+#include "nsISupports.h"
+#include "prtypes.h"
+class nsString;
+
+// {4672AA04-F6AE-11d2-B3B7-00805F8A6670}
+#define NS_IELEMENTOBSERVER_IID      \
+{ 0x4672aa04, 0xf6ae, 0x11d2, { 0xb3, 0xb7, 0x0, 0x80, 0x5f, 0x8a, 0x66, 0x70 } }
+
+
+#define NS_PARSER_SUBJECT "htmlparser"
+
+class nsIElementObserver : public nsISupports {
+public:
+  /*
+   *   This method return the tag which the observer care about
+   */
+  NS_IMETHOD GetTagName(nsString& oTag) = 0;
+
+  /*
+   *   Subject call observer when the parser hit the tag
+   *   @param aTag- the tag
+   *   @param numOfAttributes - number of attributes
+   *   @param nameArray - array of name. 
+   *   @param valueArray - array of value
+   */
+  NS_IMETHOD Notify(const nsString& aTag, PRUint32 numOfAttributes, 
+                    const nsString* nameArray, const nsString* valueArray,
+                    PRBool *oContinue) = 0;
+};
+
+
+#endif /* nsIElementObserver_h__ */
+