From 510b1c3f0323db7baf3a7ae8801c5f4915e45cfa Mon Sep 17 00:00:00 2001
From: "putterman%netscape.com" <putterman%netscape.com>
Date: Fri, 12 Mar 1999 07:55:26 +0000
Subject: [PATCH] Add and Remove FolderListeners.

---
 mailnews/base/src/nsMsgFolder.cpp | 45 ++++++++++++++++++++++++++-----
 mailnews/base/src/nsMsgFolder.h   | 14 +++++++---
 2 files changed, 49 insertions(+), 10 deletions(-)

diff --git a/mailnews/base/src/nsMsgFolder.cpp b/mailnews/base/src/nsMsgFolder.cpp
index a95e1ccec8d9..23c200207bcc 100644
--- a/mailnews/base/src/nsMsgFolder.cpp
+++ b/mailnews/base/src/nsMsgFolder.cpp
@@ -39,7 +39,8 @@ nsMsgFolder::nsMsgFolder(void)
     mNumUnreadMessages(-1),	mNumTotalMessages(0),
     mCsid(0),
     mDepth(0), 
-    mPrefFlags(0)
+    mPrefFlags(0),
+		mListeners(nsnull)
 {
 //  NS_INIT_REFCNT(); done by superclass
 
@@ -72,6 +73,14 @@ nsMsgFolder::~nsMsgFolder(void)
 
 		NS_RELEASE(mSubFolders);
 	}
+
+  if (mListeners) {
+      for (PRInt32 i = mListeners->Count() - 1; i >= 0; --i) {
+          mListeners->RemoveElementAt(i);
+      }
+		NS_RELEASE(mListeners);
+  }
+
 }
 
 NS_IMPL_ISUPPORTS_INHERITED(nsMsgFolder, nsRDFResource, nsIMsgFolder)
@@ -125,6 +134,30 @@ nsMsgFolder::GetSubFolders(nsIEnumerator* *result)
   return mSubFolders->Enumerate(result);
 }
 
+NS_IMETHODIMP nsMsgFolder::AddFolderListener(nsIFolderListener * listener)
+{
+	nsresult rv;
+  if (! mListeners)
+	{
+		rv = NS_NewISupportsArray(&mListeners);
+    if (!NS_SUCCEEDED(rv))
+      return rv;
+  }
+  mListeners->AppendElement(listener);
+  return NS_OK;
+
+}
+
+NS_IMETHODIMP nsMsgFolder::RemoveFolderListener(nsIFolderListener * listener)
+{
+  if (! mListeners)
+    return NS_OK;
+  mListeners->RemoveElement(listener);
+  return NS_OK;
+
+}
+
+
 NS_IMETHODIMP
 nsMsgFolder::GetMessages(nsIEnumerator* *result)
 {
@@ -405,7 +438,7 @@ NS_IMETHODIMP nsMsgFolder::SetName(char * name)
 	return NS_OK;
 }
 
-NS_IMETHODIMP nsMsgFolder::GetChildNamed(char* name, nsISupports* *result)
+NS_IMETHODIMP nsMsgFolder::GetChildNamed(const char* name, nsISupports* *result)
 {
   return NS_ERROR_NOT_IMPLEMENTED;
 }
@@ -590,10 +623,10 @@ NS_IMETHODIMP nsMsgFolder::CreateSubfolder(const char *, nsIMsgFolder**, PRUint3
 }
 
 
-NS_IMETHODIMP nsMsgFolder::Rename(char *name)
+NS_IMETHODIMP nsMsgFolder::Rename(const char *name)
 {
     nsresult status = NS_OK;
-	status = SetName(name);
+	status = SetName((char*)name);
 	//After doing a SetName we need to make sure that broadcasting this message causes a
 	//new sort to happen.
 #ifdef HAVE_MASTER
@@ -610,7 +643,7 @@ NS_IMETHODIMP nsMsgFolder::Adopt(const nsIMsgFolder *srcFolder, PRUint32* outPos
 
 }
 
-NS_IMETHODIMP nsMsgFolder::ContainsChildNamed(char *name, PRBool* containsChild)
+NS_IMETHODIMP nsMsgFolder::ContainsChildNamed(const char *name, PRBool* containsChild)
 {
 	nsIMsgFolder *child;
 	
@@ -703,7 +736,7 @@ NS_IMETHODIMP nsMsgFolder::IsParentOf(nsIMsgFolder *child, PRBool deep, PRBool *
 }
 
 
-NS_IMETHODIMP nsMsgFolder::GenerateUniqueSubfolderName(char *prefix, nsIMsgFolder *otherFolder,
+NS_IMETHODIMP nsMsgFolder::GenerateUniqueSubfolderName(const char *prefix, nsIMsgFolder *otherFolder,
                                                        char **name)
 {
 	if(!name)
diff --git a/mailnews/base/src/nsMsgFolder.h b/mailnews/base/src/nsMsgFolder.h
index ad421ba117e3..a0883e04e811 100644
--- a/mailnews/base/src/nsMsgFolder.h
+++ b/mailnews/base/src/nsMsgFolder.h
@@ -55,9 +55,12 @@ public:
   NS_IMETHOD GetURI(char* *name) { return nsRDFResource::GetValue((const char**)&name); }
   NS_IMETHOD GetName(char **name);
   NS_IMETHOD SetName(char *name);
-  NS_IMETHOD GetChildNamed(char *name, nsISupports* *result);
+  NS_IMETHOD GetChildNamed(const char *name, nsISupports* *result);
   NS_IMETHOD GetParent(nsIFolder* *parent);
   NS_IMETHOD GetSubFolders(nsIEnumerator* *result);
+	NS_IMETHOD AddFolderListener(nsIFolderListener * listener);
+	NS_IMETHOD RemoveFolderListener(nsIFolderListener * listener);
+
 
   // nsIMsgFolder methods:
   NS_IMETHOD AddUnique(nsISupports* element);
@@ -139,14 +142,14 @@ public:
 
   NS_IMETHOD CreateSubfolder(const char *leafNameFromuser, nsIMsgFolder** outFolder, PRUint32* outPos);
 
-  NS_IMETHOD Rename(char *name);
+  NS_IMETHOD Rename(const char *name);
   NS_IMETHOD Adopt(const nsIMsgFolder *srcFolder, PRUint32*);
 
-  NS_IMETHOD ContainsChildNamed(char *name, PRBool *containsChild);
+  NS_IMETHOD ContainsChildNamed(const char *name, PRBool *containsChild);
   NS_IMETHOD FindParentOf(nsIMsgFolder * aFolder, nsIMsgFolder ** aParent);
   NS_IMETHOD IsParentOf(nsIMsgFolder *, PRBool deep, PRBool *isParent);
 
-  NS_IMETHOD GenerateUniqueSubfolderName(char *prefix, nsIMsgFolder *otherFolder,
+  NS_IMETHOD GenerateUniqueSubfolderName(const char *prefix, nsIMsgFolder *otherFolder,
                                          char **name);
 
   NS_IMETHOD GetDepth(PRUint32 *depth);
@@ -273,6 +276,8 @@ public:
   NS_IMETHOD GetHostName(char **hostName);
 
  virtual nsresult GetDBFolderInfoAndDB(nsDBFolderInfo **folderInfo, nsMsgDatabase **db) = 0;
+ 	NS_IMETHOD DeleteMessage(nsIMessage *message) = 0;
+
 
 protected:
   nsString mName;
@@ -282,6 +287,7 @@ protected:
                                          tried to find out.) */
   PRInt32 mNumTotalMessages;         /* count of existing messages. */
   nsISupportsArray *mSubFolders;
+	nsISupportsArray *mListeners;
 #ifdef HAVE_MASTER
   MSG_Master  *mMaster;
 #endif