// This method removes the thread at threadIndex from the view
// and puts it back in its new position, determined by the sort order.
// And, if the selection is affected, save and restore the selection.
void nsMsgSearchDBView::MoveThreadAt(nsMsgViewIndex threadIndex)
{
bool updatesSuppressed = mSuppressChangeNotification;
// Turn off tree notifications so that we don't reload the current message.
if (!updatesSuppressed)
SetSuppressChangeNotifications(true);
nsCOMPtr<nsIMsgDBHdr> threadHdr;
GetMsgHdrForViewIndex(threadIndex, getter_AddRefs(threadHdr));
uint32_t saveFlags = m_flags[threadIndex];
bool threadIsExpanded = !(saveFlags & nsMsgMessageFlags::Elided);
int32_t childCount = 0;
nsMsgKey preservedKey;
nsAutoTArray<nsMsgKey, 1> preservedSelection;
int32_t selectionCount;
int32_t currentIndex;
bool hasSelection = mTree && mTreeSelection &&
((NS_SUCCEEDED(mTreeSelection->GetCurrentIndex(¤tIndex)) &&
currentIndex >= 0 && (uint32_t)currentIndex < GetSize()) ||
(NS_SUCCEEDED(mTreeSelection->GetRangeCount(&selectionCount)) &&
selectionCount > 0));
if (hasSelection)
SaveAndClearSelection(&preservedKey, preservedSelection);
if (threadIsExpanded)
{
ExpansionDelta(threadIndex, &childCount);
childCount = -childCount;
}
nsTArray<nsMsgKey> threadKeys;
nsTArray<uint32_t> threadFlags;
nsTArray<uint8_t> threadLevels;
nsCOMArray<nsIMsgFolder> threadFolders;
if (threadIsExpanded)
{
threadKeys.SetCapacity(childCount);
threadFlags.SetCapacity(childCount);
threadLevels.SetCapacity(childCount);
threadFolders.SetCapacity(childCount);
for (nsMsgViewIndex index = threadIndex + 1;
index < (nsMsgViewIndex) GetSize() && m_levels[index]; index++)
{
threadKeys.AppendElement(m_keys[index]);
threadFlags.AppendElement(m_flags[index]);
threadLevels.AppendElement(m_levels[index]);
threadFolders.AppendObject(m_folders[index]);
}
uint32_t collapseCount;
CollapseByIndex(threadIndex, &collapseCount);
}
nsMsgDBView::RemoveByIndex(threadIndex);
m_folders.RemoveObjectAt(threadIndex);
nsMsgViewIndex newIndex = GetIndexForThread(threadHdr);
NS_ASSERTION(newIndex == m_levels.Length() || !m_levels[newIndex],
"inserting into middle of thread");
if (newIndex == nsMsgViewIndex_None)
newIndex = 0;
nsMsgKey msgKey;
uint32_t msgFlags;
threadHdr->GetMessageKey(&msgKey);
threadHdr->GetFlags(&msgFlags);
InsertMsgHdrAt(newIndex, threadHdr, msgKey, msgFlags, 0);
if (threadIsExpanded)
{
m_keys.InsertElementsAt(newIndex + 1, threadKeys);
m_flags.InsertElementsAt(newIndex + 1, threadFlags);
m_levels.InsertElementsAt(newIndex + 1, threadLevels);
m_folders.InsertObjectsAt(threadFolders, newIndex + 1);
}
m_flags[newIndex] = saveFlags;
// unfreeze selection.
if (hasSelection)
RestoreSelection(preservedKey, preservedSelection);
if (!updatesSuppressed)
SetSuppressChangeNotifications(false);
nsMsgViewIndex lowIndex = threadIndex < newIndex ? threadIndex : newIndex;
nsMsgViewIndex highIndex = lowIndex == threadIndex ? newIndex : threadIndex;
NoteChange(lowIndex, highIndex - lowIndex + childCount + 1,
nsMsgViewNotificationCode::changed);
}
// This method removes the thread at threadIndex from the view
// and puts it back in its new position, determined by the sort order.
// And, if the selection is affected, save and restore the selection.
void nsMsgThreadedDBView::MoveThreadAt(nsMsgViewIndex threadIndex)
{
// we need to check if the thread is collapsed or not...
// We want to turn off tree notifications so that we don't
// reload the current message.
// We also need to invalidate the range between where the thread was
// and where it ended up.
bool changesDisabled = mSuppressChangeNotification;
if (!changesDisabled)
SetSuppressChangeNotifications(true);
nsCOMPtr <nsIMsgDBHdr> threadHdr;
GetMsgHdrForViewIndex(threadIndex, getter_AddRefs(threadHdr));
PRInt32 childCount = 0;
nsMsgKey preservedKey;
nsAutoTArray<nsMsgKey, 1> preservedSelection;
PRInt32 selectionCount;
PRInt32 currentIndex;
bool hasSelection = mTree && mTreeSelection &&
((NS_SUCCEEDED(mTreeSelection->GetCurrentIndex(¤tIndex)) &&
currentIndex >= 0 && (PRUint32)currentIndex < GetSize()) ||
(NS_SUCCEEDED(mTreeSelection->GetRangeCount(&selectionCount)) &&
selectionCount > 0));
if (hasSelection)
SaveAndClearSelection(&preservedKey, preservedSelection);
PRUint32 saveFlags = m_flags[threadIndex];
bool threadIsExpanded = !(saveFlags & nsMsgMessageFlags::Elided);
if (threadIsExpanded)
{
ExpansionDelta(threadIndex, &childCount);
childCount = -childCount;
}
nsTArray<nsMsgKey> threadKeys;
nsTArray<PRUint32> threadFlags;
nsTArray<PRUint8> threadLevels;
if (threadIsExpanded)
{
threadKeys.SetCapacity(childCount);
threadFlags.SetCapacity(childCount);
threadLevels.SetCapacity(childCount);
for (nsMsgViewIndex index = threadIndex + 1;
index < GetSize() && m_levels[index]; index++)
{
threadKeys.AppendElement(m_keys[index]);
threadFlags.AppendElement(m_flags[index]);
threadLevels.AppendElement(m_levels[index]);
}
PRUint32 collapseCount;
CollapseByIndex(threadIndex, &collapseCount);
}
nsMsgDBView::RemoveByIndex(threadIndex);
nsMsgViewIndex newIndex = nsMsgViewIndex_None;
AddHdr(threadHdr, &newIndex);
// AddHdr doesn't always set newIndex, and getting it to do so
// is going to require some refactoring.
if (newIndex == nsMsgViewIndex_None)
newIndex = FindHdr(threadHdr);
if (threadIsExpanded)
{
m_keys.InsertElementsAt(newIndex + 1, threadKeys);
m_flags.InsertElementsAt(newIndex + 1, threadFlags);
m_levels.InsertElementsAt(newIndex + 1, threadLevels);
}
if (newIndex == nsMsgViewIndex_None)
{
NS_WARNING("newIndex=-1 in MoveThreadAt");
newIndex = 0;
}
m_flags[newIndex] = saveFlags;
// unfreeze selection.
if (hasSelection)
RestoreSelection(preservedKey, preservedSelection);
if (!changesDisabled)
SetSuppressChangeNotifications(false);
nsMsgViewIndex lowIndex = threadIndex < newIndex ? threadIndex : newIndex;
nsMsgViewIndex highIndex = lowIndex == threadIndex ? newIndex : threadIndex;
NoteChange(lowIndex, highIndex - lowIndex + childCount + 1,
nsMsgViewNotificationCode::changed);
}
