/**
* Uses the current state to update the current folder {@link #mFolder} and the current account
* {@link #mAccount} shown in the actionbar. Also updates the actionbar subtitle to momentarily
* display the unread count if it has changed.
*
* @param folderChanged true if folder changed in terms of URI
*/
private void setFolderAndAccount(final boolean folderChanged) {
// Very little can be done if the actionbar or activity is null.
if (mActionBar == null || mActivity == null) {
return;
}
if (ViewMode.isWaitingForSync(mMode)) {
// Account is not synced: clear title and update the subtitle.
setTitle("");
removeUnreadCount(true);
return;
}
// Check if we should be changing the actionbar at all, and back off if not.
final boolean isShowingFolder = mIsOnTablet || ViewMode.isListMode(mMode);
if (!isShowingFolder) {
// It isn't necessary to set the title in this case, as the title view will
// be hidden
return;
}
if (mFolder == null) {
// Clear the action bar title. We don't want the app name to be shown while
// waiting for the folder query to finish
setTitle("");
return;
}
setTitle(mFolder.name);
final int folderUnreadCount = mFolder.isUnreadCountHidden() ? 0 : mFolder.unreadCount;
// The user shouldn't see "999+ unread messages", and then a short while later: "999+
// unread messages". So we set our unread count just past the limit. This way we can
// change the subtitle the first time around but not for subsequent changes as far as the
// unread count remains over the limit.
final int toDisplay =
(folderUnreadCount > UNREAD_LIMIT) ? (UNREAD_LIMIT + 1) : folderUnreadCount;
if ((mUnreadCount != toDisplay || folderChanged) && toDisplay != 0) {
setSubtitle(Utils.getUnreadMessageString(mActivity.getApplicationContext(), toDisplay));
}
// Schedule a removal of unread count for the future, if there isn't one already. If the
// unread count dropped to zero, remove it and show the account name right away.
removeUnreadCount(toDisplay == 0);
// Remember the new value for the next run
mUnreadCount = toDisplay;
}
/** {@inheritDoc} */
@Override
public void setStartView(ViewMode mode) {
setStartView(mode.name());
}
