statusline: make statusline folder-specific

Make statusline folder-specific. Update filter, search and threading
status when changing folders.

Commit 2512c04 ("statusline: implement per-account status") introduced
an account-specific statusline. This makes it account- and
folder-specific.

Signed-off-by: Koni Marti <koni.marti@gmail.com>
Tested-by: Moritz Poldrack <moritz@poldrack.dev>

1 files changed, 28 insertions, 0 deletions

diff --git a/lib/statusline/folderstate.go b/lib/statusline/folderstate.go
new file mode 100644
index 00000000..50a8c82b
--- /dev/null
+++ b/lib/statusline/folderstate.go
@@ -0,0 +1,28 @@
+package statusline
+
+type folderState struct {
+	Search         string
+	Filter         string
+	FilterActivity string
+
+	Threading string
+}
+
+func (fs *folderState) State() []string {
+	var line []string
+
+	if fs.FilterActivity != "" {
+		line = append(line, fs.FilterActivity)
+	} else {
+		if fs.Filter != "" {
+			line = append(line, fs.Filter)
+		}
+	}
+	if fs.Search != "" {
+		line = append(line, fs.Search)
+	}
+	if fs.Threading != "" {
+		line = append(line, fs.Threading)
+	}
+	return line
+}