pjs/mailnews/base/util/nsMsgDBFolder.cpp

523 строки
13 KiB
C++
Исходник Обычный вид История

/* -*- 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) 1999 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "msgCore.h"
#include "nsIMessage.h"
#include "nsMsgDBFolder.h"
#include "nsMsgFolderFlags.h"
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#include "nsIPref.h"
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#include "nsIMsgFolderCache.h"
#include "nsIMsgFolderCacheElement.h"
#include "nsIMsgMailSession.h"
#include "nsMsgBaseCID.h"
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#include "nsIMsgMailNewsUrl.h"
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static NS_DEFINE_CID(kPrefServiceCID, NS_PREF_CID);
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static NS_DEFINE_CID(kMsgMailSessionCID, NS_MSGMAILSESSION_CID);
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NS_IMPL_ADDREF_INHERITED(nsMsgDBFolder, nsMsgFolder)
NS_IMPL_RELEASE_INHERITED(nsMsgDBFolder, nsMsgFolder)
NS_IMETHODIMP nsMsgDBFolder::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
if (!aInstancePtr) return NS_ERROR_NULL_POINTER;
*aInstancePtr = nsnull;
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if (aIID.Equals(nsCOMTypeInfo<nsIDBChangeListener>::GetIID()))
{
*aInstancePtr = NS_STATIC_CAST(nsIDBChangeListener*, this);
}
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else if (aIID.Equals(nsCOMTypeInfo<nsIUrlListener>::GetIID()))
{
*aInstancePtr = NS_STATIC_CAST(nsIUrlListener*, this);
}
if(*aInstancePtr)
{
AddRef();
return NS_OK;
}
return nsRDFResource::QueryInterface(aIID, aInstancePtr);
}
nsMsgDBFolder::nsMsgDBFolder(void)
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: mCharset("")
{
}
nsMsgDBFolder::~nsMsgDBFolder(void)
{
if(mDatabase)
{
mDatabase->RemoveListener(this);
mDatabase->Close(PR_TRUE);
}
}
NS_IMETHODIMP nsMsgDBFolder::GetThreads(nsISimpleEnumerator** threadEnumerator)
{
nsresult rv = GetDatabase();
if(NS_SUCCEEDED(rv))
return mDatabase->EnumerateThreads(threadEnumerator);
else
return rv;
}
NS_IMETHODIMP
nsMsgDBFolder::GetThreadForMessage(nsIMessage *message, nsIMsgThread **thread)
{
nsresult rv = GetDatabase();
if(NS_SUCCEEDED(rv))
{
nsCOMPtr<nsIMsgDBHdr> msgDBHdr;
nsCOMPtr<nsIDBMessage> dbMessage(do_QueryInterface(message, &rv));
if(NS_SUCCEEDED(rv))
rv = dbMessage->GetMsgDBHdr(getter_AddRefs(msgDBHdr));
if(NS_SUCCEEDED(rv))
{
rv = mDatabase->GetThreadContainingMsgHdr(msgDBHdr, thread);
}
}
return rv;
}
NS_IMETHODIMP
nsMsgDBFolder::HasMessage(nsIMessage *message, PRBool *hasMessage)
{
if(!hasMessage)
return NS_ERROR_NULL_POINTER;
nsresult rv = GetDatabase();
if(NS_SUCCEEDED(rv))
{
nsCOMPtr<nsIMsgDBHdr> msgDBHdr, msgDBHdrForKey;
nsCOMPtr<nsIDBMessage> dbMessage(do_QueryInterface(message, &rv));
nsMsgKey key;
if(NS_SUCCEEDED(rv))
rv = dbMessage->GetMsgDBHdr(getter_AddRefs(msgDBHdr));
if(NS_SUCCEEDED(rv))
rv = msgDBHdr->GetMessageKey(&key);
if(NS_SUCCEEDED(rv))
rv = mDatabase->ContainsKey(key, hasMessage);
}
return rv;
}
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NS_IMETHODIMP nsMsgDBFolder::GetCharset(PRUnichar * *aCharset)
{
nsresult rv = NS_OK;
if(!aCharset)
return NS_ERROR_NULL_POINTER;
if(mCharset == "")
{
NS_WITH_SERVICE(nsIPref, prefs, kPrefServiceCID, &rv);
char *prefCharset = nsnull;
if (NS_SUCCEEDED(rv))
{
rv = prefs->CopyCharPref("intl.character_set_name", &prefCharset);
}
nsString prefCharsetStr;
if(prefCharset)
{
prefCharsetStr = prefCharset;
PR_Free(prefCharset);
}
else
{
prefCharsetStr = "us-ascii";
}
*aCharset = prefCharsetStr.ToNewUnicode();
}
else
{
*aCharset = mCharset.ToNewUnicode();
}
return rv;
}
NS_IMETHODIMP nsMsgDBFolder::SetCharset(PRUnichar * aCharset)
{
nsresult rv;
nsCOMPtr<nsIDBFolderInfo> folderInfo;
nsCOMPtr<nsIMsgDatabase> db;
rv = GetDBFolderInfoAndDB(getter_AddRefs(folderInfo), getter_AddRefs(db));
if(NS_SUCCEEDED(rv))
{
nsString charset(aCharset);
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rv = folderInfo->SetCharacterSet(&charset);
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db->Commit(nsMsgDBCommitType::kLargeCommit);
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}
return rv;
}
nsresult nsMsgDBFolder::ReadDBFolderInfo(PRBool force)
{
// Since it turns out to be pretty expensive to open and close
// the DBs all the time, if we have to open it once, get everything
// we might need while we're here
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nsresult result;
nsCOMPtr <nsIMsgFolderCache> folderCache;
NS_WITH_SERVICE(nsIMsgMailSession, mailSession, kMsgMailSessionCID, &result);
if(NS_SUCCEEDED(result))
{
result = mailSession->GetFolderCache(getter_AddRefs(folderCache));
if (NS_SUCCEEDED(result) && folderCache)
{
char *uri;
result = GetURI(&uri);
if (NS_SUCCEEDED(result) && uri)
{
nsCOMPtr <nsIMsgFolderCacheElement> cacheElement;
result = folderCache->GetCacheElement(uri, PR_FALSE, getter_AddRefs(cacheElement));
if (NS_SUCCEEDED(result) && cacheElement)
{
result = ReadFromFolderCache(cacheElement);
}
PR_Free(uri);
}
}
}
// if (m_master->InitFolderFromCache (this))
// return err;
if (force || !(mPrefFlags & MSG_FOLDER_PREF_CACHED))
{
nsCOMPtr<nsIDBFolderInfo> folderInfo;
nsCOMPtr<nsIMsgDatabase> db;
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result = GetDBFolderInfoAndDB(getter_AddRefs(folderInfo), getter_AddRefs(db));
if(NS_SUCCEEDED(result))
{
mIsCachable = PR_TRUE;
if (folderInfo)
{
folderInfo->GetFlags(&mPrefFlags);
mPrefFlags |= MSG_FOLDER_PREF_CACHED;
folderInfo->SetFlags(mPrefFlags);
folderInfo->GetNumMessages(&mNumTotalMessages);
folderInfo->GetNumNewMessages(&mNumUnreadMessages);
//These should be put in IMAP folder only.
//folderInfo->GetImapTotalPendingMessages(&mNumPendingTotalMessages);
//folderInfo->GetImapUnreadPendingMessages(&mNumPendingUnreadMessages);
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folderInfo->GetCharacterSet(&mCharset);
if (db) {
PRBool hasnew;
nsresult rv;
rv = db->HasNew(&hasnew);
if (NS_FAILED(rv)) return rv;
if (!hasnew && mNumPendingUnreadMessages <= 0) {
ClearFlag(MSG_FOLDER_FLAG_GOT_NEW);
}
}
}
}
if (db)
db->Close(PR_FALSE);
}
return result;
}
nsresult nsMsgDBFolder::SendFlagNotifications(nsISupports *item, PRUint32 oldFlags, PRUint32 newFlags)
{
nsresult rv = NS_OK;
PRUint32 changedFlags = oldFlags ^ newFlags;
if((changedFlags & MSG_FLAG_READ) || (changedFlags & MSG_FLAG_REPLIED)
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|| (changedFlags & MSG_FLAG_FORWARDED)|| (changedFlags & MSG_FLAG_NEW))
{
rv = NotifyPropertyFlagChanged(item, "Status", oldFlags, newFlags);
}
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else if((changedFlags & MSG_FLAG_MARKED))
{
rv = NotifyPropertyFlagChanged(item, "Flagged", oldFlags, newFlags);
}
return rv;
}
NS_IMETHODIMP
nsMsgDBFolder::GetMsgDatabase(nsIMsgDatabase** aMsgDatabase)
{
if (!aMsgDatabase || !mDatabase)
return NS_ERROR_NULL_POINTER;
*aMsgDatabase = mDatabase;
NS_ADDREF(*aMsgDatabase);
return NS_OK;
}
NS_IMETHODIMP nsMsgDBFolder::OnKeyChange(nsMsgKey aKeyChanged, PRUint32 aOldFlags, PRUint32 aNewFlags,
nsIDBChangeListener * aInstigator)
{
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nsCOMPtr<nsIMsgDBHdr> pMsgDBHdr;
nsresult rv = mDatabase->GetMsgHdrForKey(aKeyChanged, getter_AddRefs(pMsgDBHdr));
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if(NS_SUCCEEDED(rv) && pMsgDBHdr)
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{
nsCOMPtr<nsIMessage> message;
rv = CreateMessageFromMsgDBHdr(pMsgDBHdr, getter_AddRefs(message));
if(NS_SUCCEEDED(rv))
{
nsCOMPtr<nsISupports> msgSupports(do_QueryInterface(message, &rv));
if(NS_SUCCEEDED(rv))
{
SendFlagNotifications(msgSupports, aOldFlags, aNewFlags);
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}
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UpdateSummaryTotals(PR_TRUE);
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}
}
return NS_OK;
}
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NS_IMETHODIMP nsMsgDBFolder::OnKeyDeleted(nsMsgKey aKeyChanged, nsMsgKey /* aParentKey */, PRInt32 aFlags,
nsIDBChangeListener * aInstigator)
{
nsCOMPtr<nsIMsgDBHdr> pMsgDBHdr;
nsresult rv = mDatabase->GetMsgHdrForKey(aKeyChanged, getter_AddRefs(pMsgDBHdr));
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if(NS_SUCCEEDED(rv) && pMsgDBHdr)
{
nsCOMPtr<nsIMessage> message;
rv = CreateMessageFromMsgDBHdr(pMsgDBHdr, getter_AddRefs(message));
if(NS_SUCCEEDED(rv))
{
nsCOMPtr<nsISupports> msgSupports(do_QueryInterface(message, &rv));
if(NS_SUCCEEDED(rv))
{
NotifyItemDeleted(msgSupports);
}
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UpdateSummaryTotals(PR_TRUE);
}
}
return NS_OK;
}
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NS_IMETHODIMP nsMsgDBFolder::OnKeyAdded(nsMsgKey aKeyChanged, nsMsgKey /* aParentKey */, PRInt32 aFlags,
nsIDBChangeListener * aInstigator)
{
nsresult rv;
nsCOMPtr<nsIMsgDBHdr> msgDBHdr;
rv = mDatabase->GetMsgHdrForKey(aKeyChanged, getter_AddRefs(msgDBHdr));
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if(NS_SUCCEEDED(rv) && msgDBHdr)
{
nsCOMPtr<nsIMessage> message;
rv = CreateMessageFromMsgDBHdr(msgDBHdr, getter_AddRefs(message));
if(NS_SUCCEEDED(rv))
{
nsCOMPtr<nsISupports> msgSupports(do_QueryInterface(message));
if(msgSupports)
{
NotifyItemAdded(msgSupports);
}
UpdateSummaryTotals(PR_TRUE);
}
}
return NS_OK;
}
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NS_IMETHODIMP nsMsgDBFolder::OnParentChanged(nsMsgKey aKeyChanged, nsMsgKey oldParent, nsMsgKey newParent,
nsIDBChangeListener * aInstigator)
{
return NS_OK;
}
NS_IMETHODIMP nsMsgDBFolder::OnAnnouncerGoingAway(nsIDBChangeAnnouncer *
instigator)
{
if (mDatabase)
{
mDatabase->RemoveListener(this);
mDatabase = null_nsCOMPtr();
}
return NS_OK;
}
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NS_IMETHODIMP nsMsgDBFolder::ManyHeadersToDownload(PRBool *retval)
{
PRInt32 numTotalMessages;
if (!retval)
return NS_ERROR_NULL_POINTER;
if (!mDatabase)
*retval = PR_TRUE;
else if (NS_SUCCEEDED(GetTotalMessages(PR_FALSE, &numTotalMessages)) && numTotalMessages <= 0)
*retval = PR_TRUE;
else
*retval = PR_FALSE;
return NS_OK;
}
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nsresult nsMsgDBFolder::ReadFromFolderCache(nsIMsgFolderCacheElement *element)
{
nsresult rv = NS_OK;
char *charset;
element->GetInt32Property("flags", &mPrefFlags);
element->GetInt32Property("totalMsgs", &mNumTotalMessages);
element->GetInt32Property("totalUnreadMsgs", &mNumUnreadMessages);
element->GetStringProperty("charset", &charset);
#ifdef DEBUG_bienvenu1
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char *uri;
GetURI(&uri);
printf("read total %ld for %s\n", mNumTotalMessages, uri);
PR_Free(uri);
#endif
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mCharset = charset;
PR_FREEIF(charset);
mPrefFlags |= MSG_FOLDER_PREF_CACHED;
return rv;
}
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NS_IMETHODIMP nsMsgDBFolder::WriteToFolderCache(nsIMsgFolderCache *folderCache)
{
nsCOMPtr <nsIEnumerator> aEnumerator;
nsresult rv = GetSubFolders(getter_AddRefs(aEnumerator));
if(NS_FAILED(rv))
return rv;
char *uri = nsnull;
rv = GetURI(&uri);
if (folderCache)
{
nsCOMPtr <nsIMsgFolderCacheElement> cacheElement;
rv = folderCache->GetCacheElement(uri, PR_TRUE, getter_AddRefs(cacheElement));
if (NS_SUCCEEDED(rv) && cacheElement)
rv = WriteToFolderCacheElem(cacheElement);
}
PR_FREEIF(uri);
nsCOMPtr<nsISupports> aItem;
rv = aEnumerator->First();
if (!NS_SUCCEEDED(rv))
return NS_OK; // it's OK, there are no sub-folders.
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while(NS_SUCCEEDED(rv))
{
rv = aEnumerator->CurrentItem(getter_AddRefs(aItem));
if (NS_FAILED(rv)) break;
nsCOMPtr<nsIMsgFolder> aMsgFolder(do_QueryInterface(aItem, &rv));
if (NS_SUCCEEDED(rv))
{
if (folderCache)
{
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rv = aMsgFolder->WriteToFolderCache(folderCache);
if (!NS_SUCCEEDED(rv))
break;
}
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}
rv = aEnumerator->Next();
if (!NS_SUCCEEDED(rv))
{
rv = NS_OK;
break;
}
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}
return rv;
}
NS_IMETHODIMP nsMsgDBFolder::WriteToFolderCacheElem(nsIMsgFolderCacheElement *element)
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{
nsresult rv = NS_OK;
element->SetInt32Property("flags", mPrefFlags);
element->SetInt32Property("totalMsgs", mNumTotalMessages);
element->SetInt32Property("totalUnreadMsgs", mNumUnreadMessages);
element->SetStringProperty("charset", (const char *) nsCAutoString(mCharset));
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#ifdef DEBUG_bienvenu1
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char *uri;
GetURI(&uri);
printf("writing total %ld for %s\n", mNumTotalMessages, uri);
PR_Free(uri);
#endif
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return rv;
}
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NS_IMETHODIMP
nsMsgDBFolder::MarkAllMessagesRead(void)
{
nsresult rv = GetDatabase();
if(NS_SUCCEEDED(rv))
return mDatabase->MarkAllRead(nsnull);
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return rv;
}
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NS_IMETHODIMP
nsMsgDBFolder::OnStartRunningUrl(nsIURI *aUrl)
{
NS_PRECONDITION(aUrl, "just a sanity check");
return NS_OK;
}
NS_IMETHODIMP
nsMsgDBFolder::OnStopRunningUrl(nsIURI *aUrl, nsresult aExitCode)
{
nsresult rv = NS_OK;
NS_PRECONDITION(aUrl, "just a sanity check");
nsCOMPtr<nsIMsgMailNewsUrl> mailUrl = do_QueryInterface(aUrl);
if (mailUrl)
{
PRBool updatingFolder = PR_FALSE;
if (NS_SUCCEEDED(mailUrl->GetUpdatingFolder(&updatingFolder)) && updatingFolder)
{
PRInt32 i;
for(i = 0; i < mListeners->Count(); i++)
{
//Folderlistener's aren't refcounted.
nsIFolderListener *listener = (nsIFolderListener*)mListeners->ElementAt(i);
listener->OnFolderLoaded(this);
}
}
}
return NS_OK;
}