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This content covers features introduced in Thunderbird 3
The folder pane in Thunderbird is predominantly controlled by code in folderPane.js. Since Thunderbird 3, the folder pane is designed in a more modular and extensible fashion. It is now possible to place non-mail entities in the folder pane.
Treeview row/cell properties
| CSS Property | Equivalent call | Explanation |
folderNameCol |
-- | A property for indicating that a column is the folder name column. |
hasUnreadMessages-true |
aFolder.getNumUnread(false) > 0 |
Indicates that the folder (but not subfolders) has unread messages. |
isServer-true |
aFolder.isServer |
Indicates that the folder is a root folder (one that represents a server). |
serverType-server |
aFolder.server.type |
Returns the type of the server. For example, IMAP servers are "imap". |
specialFolder-folderType |
aFolder.flags & nsMsgFolderFlags.<name> |
Returns the folder type if it is a special folder (or "none" if it is a regular folder). For example, if the Inbox flag is set, this will be "Inbox". |
biffState-biffState |
aFolder.biffState == nsIMsgFolder.nsMsgBiffState_<name> |
Indicates whether or not the folder has new messages. |
isSecure-{true, false} |
aFolder.server.isSecure |
Indicates whether or not the connection to the server will be secure. |
newMessages-true |
aFolder.hasNewMessages |
|
subfoldersHaveUnreadMessages-true |
aFolder.getNumUnread(true) > aFolder.getNumUnread(false) |
Indicates whether or not subfolders have unread messages. |
noSelect-{true, false} |
aFolder.noSelect |
Indicates whether or not the folder is selectable. |
imapShared-{true, false} |
aFolder.imapShared |
Indicates whether or not the folder is a shared folder. |
specialFolder-Smart |
-- | Indicates that the folder is a child of a unified folder (previously known as smart folder) in the smart folders view. |