/** Disable/enable the move-to-newer/older buttons. */
@Override
protected void updateNavigationArrows() {
final MessageOrderManager orderManager = getMessageOrderManager();
if (orderManager == null) {
// shouldn't happen, but just in case
mMessageCommandButtons.enableNavigationButtons(false, false, 0, 0);
} else {
mMessageCommandButtons.enableNavigationButtons(
orderManager.canMoveToNewer(), orderManager.canMoveToOlder(),
orderManager.getCurrentPosition(), orderManager.getTotalMessageCount());
}
}
/**
* Apply the auto-advance policy upon initation of a batch command that could potentially affect
* the currently selected conversation.
*/
@Override
public void onAdvancingOpAccepted(Set<Long> affectedMessages) {
if (!isMessageViewInstalled()) {
// Do nothing if message view is not visible.
return;
}
final MessageOrderManager orderManager = getMessageOrderManager();
int autoAdvanceDir = Preferences.getPreferences(mActivity).getAutoAdvanceDirection();
if ((autoAdvanceDir == Preferences.AUTO_ADVANCE_MESSAGE_LIST) || (orderManager == null)) {
if (affectedMessages.contains(getMessageId())) {
goBackToMailbox();
}
return;
}
// Navigate to the first unselected item in the appropriate direction.
switch (autoAdvanceDir) {
case Preferences.AUTO_ADVANCE_NEWER:
while (affectedMessages.contains(orderManager.getCurrentMessageId())) {
if (!orderManager.moveToNewer()) {
goBackToMailbox();
return;
}
}
navigateToMessage(orderManager.getCurrentMessageId());
break;
case Preferences.AUTO_ADVANCE_OLDER:
while (affectedMessages.contains(orderManager.getCurrentMessageId())) {
if (!orderManager.moveToOlder()) {
goBackToMailbox();
return;
}
}
navigateToMessage(orderManager.getCurrentMessageId());
break;
}
}
