NS_IMETHODIMP nsMsgGroupView::OnHdrDeleted(nsIMsgDBHdr *aHdrDeleted, nsMsgKey aParentKey, int32_t aFlags,
nsIDBChangeListener *aInstigator)
{
if (!(m_viewFlags & nsMsgViewFlagsType::kGroupBySort))
return nsMsgDBView::OnHdrDeleted(aHdrDeleted, aParentKey, aFlags, aInstigator);
// check if we're adding a header, and the current day has changed. If it has, we're just going to
// close and re-open the view so things will be correctly categorized.
if (m_dayChanged)
return RebuildView(m_viewFlags);
nsCOMPtr <nsIMsgThread> thread;
nsMsgKey keyDeleted;
aHdrDeleted->GetMessageKey(&keyDeleted);
nsresult rv = GetThreadContainingMsgHdr(aHdrDeleted, getter_AddRefs(thread));
NS_ENSURE_SUCCESS(rv, rv);
nsMsgViewIndex viewIndexOfThread = GetIndexOfFirstDisplayedKeyInThread(
thread, true); // yes to dummy node
thread->RemoveChildHdr(aHdrDeleted, nullptr);
nsMsgGroupThread *groupThread = static_cast<nsMsgGroupThread *>((nsIMsgThread *) thread);
bool rootDeleted = viewIndexOfThread != nsMsgKey_None &&
m_keys[viewIndexOfThread] == keyDeleted;
rv = nsMsgDBView::OnHdrDeleted(aHdrDeleted, aParentKey, aFlags, aInstigator);
if (groupThread->m_dummy)
{
if (!groupThread->NumRealChildren())
{
thread->RemoveChildAt(0); // get rid of dummy
if (viewIndexOfThread != nsMsgKey_None)
{
RemoveByIndex(viewIndexOfThread);
if (m_deletingRows)
mIndicesToNoteChange.AppendElement(viewIndexOfThread);
}
}
else if (rootDeleted)
{
// reflect new thread root into view.dummy row.
nsCOMPtr<nsIMsgDBHdr> hdr;
thread->GetChildHdrAt(0, getter_AddRefs(hdr));
if (hdr)
{
nsMsgKey msgKey;
hdr->GetMessageKey(&msgKey);
SetMsgHdrAt(hdr, viewIndexOfThread, msgKey, m_flags[viewIndexOfThread], 0);
}
}
}
if (!groupThread->m_keys.Length())
{
nsString hashKey;
rv = HashHdr(aHdrDeleted, hashKey);
if (NS_SUCCEEDED(rv))
m_groupsTable.Remove(hashKey);
}
return rv;
}
NS_IMETHODIMP nsMsgGroupThread::RemoveChildHdr(nsIMsgDBHdr *child, nsIDBChangeAnnouncer *announcer)
{
uint32_t flags;
nsMsgKey key;
if (!child)
return NS_ERROR_NULL_POINTER;
child->GetFlags(&flags);
child->GetMessageKey(&key);
// if this was the newest msg, clear the newest msg date so we'll recalc.
uint32_t date;
child->GetDateInSeconds(&date);
if (date == m_newestMsgDate)
SetNewestMsgDate(0);
if (!(flags & nsMsgMessageFlags::Read))
ChangeUnreadChildCount(-1);
nsMsgViewIndex threadIndex = FindMsgHdr(child);
bool wasFirstChild = threadIndex == 0;
nsresult rv = RemoveChildAt(threadIndex);
// if we're deleting the root of a dummy thread, need to update the threadKey
// and the dummy header at position 0
if (m_dummy && wasFirstChild && m_keys.Length() > 1)
{
nsIMsgDBHdr *newRootChild;
GetChildHdrAt(1, &newRootChild);
SetMsgHdrAt(0, newRootChild);
}
return rv;
}
nsresult
nsMsgSearchDBView::ListIdsInThread(nsIMsgThread *threadHdr,
nsMsgViewIndex startOfThreadViewIndex,
uint32_t *pNumListed)
{
NS_ENSURE_ARG_POINTER(threadHdr);
NS_ENSURE_ARG_POINTER(pNumListed);
// these children ids should be in thread order.
uint32_t i;
nsMsgViewIndex viewIndex = startOfThreadViewIndex + 1;
*pNumListed = 0;
uint32_t numChildren;
threadHdr->GetNumChildren(&numChildren);
NS_ASSERTION(numChildren, "Empty thread in view/db");
if (!numChildren)
return NS_OK;
numChildren--; // account for the existing thread root
if (!InsertEmptyRows(viewIndex, numChildren))
return NS_ERROR_OUT_OF_MEMORY;
bool threadedView = m_viewFlags & nsMsgViewFlagsType::kThreadedDisplay &&
!(m_viewFlags & nsMsgViewFlagsType::kGroupBySort);
nsMsgXFViewThread *viewThread;
if (threadedView)
viewThread = static_cast<nsMsgXFViewThread*>(threadHdr);
for (i = 1; i <= numChildren; i++)
{
nsCOMPtr<nsIMsgDBHdr> msgHdr;
threadHdr->GetChildHdrAt(i, getter_AddRefs(msgHdr));
if (msgHdr)
{
nsMsgKey msgKey;
uint32_t msgFlags;
msgHdr->GetMessageKey(&msgKey);
msgHdr->GetFlags(&msgFlags);
uint8_t level = (threadedView) ? viewThread->ChildLevelAt(i) : 1;
SetMsgHdrAt(msgHdr, viewIndex, msgKey, msgFlags & ~MSG_VIEW_FLAGS,
level);
(*pNumListed)++;
viewIndex++;
}
}
return NS_OK;
}
nsMsgGroupThread *nsMsgGroupView::AddHdrToThread(nsIMsgDBHdr *msgHdr, bool *pNewThread)
{
nsMsgKey msgKey;
uint32_t msgFlags;
msgHdr->GetMessageKey(&msgKey);
msgHdr->GetFlags(&msgFlags);
nsString hashKey;
nsresult rv = HashHdr(msgHdr, hashKey);
if (NS_FAILED(rv))
return nullptr;
// if (m_sortType == nsMsgViewSortType::byDate)
// msgKey = ((nsPRUint32Key *) hashKey)->GetValue();
nsCOMPtr<nsIMsgThread> msgThread;
m_groupsTable.Get(hashKey, getter_AddRefs(msgThread));
bool newThread = !msgThread;
*pNewThread = newThread;
nsMsgViewIndex viewIndexOfThread; // index of first message in thread in view
nsMsgViewIndex threadInsertIndex; // index of newly added header in thread
nsMsgGroupThread *foundThread = static_cast<nsMsgGroupThread *>(msgThread.get());
if (foundThread)
{
// find the view index of the root node of the thread in the view
viewIndexOfThread = GetIndexOfFirstDisplayedKeyInThread(foundThread,
true);
if (viewIndexOfThread == nsMsgViewIndex_None)
{
// Something is wrong with the group table. Remove the old group and
// insert a new one.
m_groupsTable.Remove(hashKey);
foundThread = nullptr;
*pNewThread = newThread = true;
}
}
// If the thread does not already exist, create one
if (!foundThread)
{
foundThread = CreateGroupThread(m_db);
msgThread = do_QueryInterface(foundThread);
m_groupsTable.Put(hashKey, msgThread);
if (GroupViewUsesDummyRow())
{
foundThread->m_dummy = true;
msgFlags |= MSG_VIEW_FLAG_DUMMY | MSG_VIEW_FLAG_HASCHILDREN;
}
viewIndexOfThread = GetInsertIndex(msgHdr);
if (viewIndexOfThread == nsMsgViewIndex_None)
viewIndexOfThread = m_keys.Length();
// add the thread root node to the view
InsertMsgHdrAt(viewIndexOfThread, msgHdr, msgKey,
msgFlags | MSG_VIEW_FLAG_ISTHREAD | nsMsgMessageFlags::Elided, 0);
// For dummy rows, Have the header serve as the dummy node (it will be added
// again for its actual content later.)
if (GroupViewUsesDummyRow())
foundThread->InsertMsgHdrAt(0, msgHdr);
// Calculate the (integer thread key); this really only needs to be done for
// the byDate case where the expanded state of the groups can be easily
// persisted and restored because of the bounded, consecutive value space
// occupied. We calculate an integer value in all cases mainly because
// it's the sanest choice available...
// (The thread key needs to be an integer, so parse hash keys that are
// stringified integers to real integers, and hash actual strings into
// integers.)
if ((m_sortType == nsMsgViewSortType::byAttachments) ||
(m_sortType == nsMsgViewSortType::byFlagged) ||
(m_sortType == nsMsgViewSortType::byPriority) ||
(m_sortType == nsMsgViewSortType::byStatus) ||
(m_sortType == nsMsgViewSortType::byReceived) ||
(m_sortType == nsMsgViewSortType::byDate))
foundThread->m_threadKey =
atoi(NS_LossyConvertUTF16toASCII(hashKey).get());
else
foundThread->m_threadKey = (nsMsgKey)
PL_HashString(NS_LossyConvertUTF16toASCII(hashKey).get());
}
// Add the message to the thread as an actual content-bearing header.
// (If we use dummy rows, it was already added to the thread during creation.)
threadInsertIndex = foundThread->AddChildFromGroupView(msgHdr, this);
// check if new hdr became thread root
if (!newThread && threadInsertIndex == 0)
{
// update the root node's header (in the view) to be the same as the root
// node in the thread.
SetMsgHdrAt(msgHdr, viewIndexOfThread, msgKey,
(msgFlags & ~(nsMsgMessageFlags::Elided)) |
// maintain elided flag and dummy flag
(m_flags[viewIndexOfThread] & (nsMsgMessageFlags::Elided
| MSG_VIEW_FLAG_DUMMY))
// ensure thread and has-children flags are set
| MSG_VIEW_FLAG_ISTHREAD | MSG_VIEW_FLAG_HASCHILDREN, 0);
// update the content-bearing copy in the thread to match. (the root and
// first nodes in the thread should always be the same header.)
// note: the guy who used to be the root will still exist. If our list of
// nodes was [A A], a new node B is introduced which sorts to be the first
// node, giving us [B A A], our copy makes that [B B A], and things are
// right in the world (since we want the first two headers to be the same
// since one is our dummy and one is real.)
if (GroupViewUsesDummyRow())
foundThread->SetMsgHdrAt(1, msgHdr); // replace the old duplicate dummy header.
// we do not update the content-bearing copy in the view to match; we leave
// that up to OnNewHeader, which is the piece of code who gets to care
// about whether the thread's children are shown or not (elided)
}
return foundThread;
}