dkforest

commit 7281a4c2fddd33596c0c3fd45df54c65e554a7f2
parent d42ee05814e3fc2a2bfd95dd80fd1670162c3c05
Author: n0tr1v <n0tr1v@protonmail.com>
Date:   Tue, 30 May 2023 18:09:03 -0700

Add doc

Diffstat:
M
pkg/web/handlers/handlers.go
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/pkg/web/handlers/handlers.go b/pkg/web/handlers/handlers.go
@@ -5166,6 +5166,8 @@ Loop:
 			continue
 		}
 
+		// We receive this event when the "update read-marker" is clicked.
+		// This means the user is saying that all messages are read, and read-marker should be at the very top.
 		if topic == readMarkerTopic {
 			msgsMap = make(map[int64]struct{}) // read-marker at the top, so no unread message
 			send(fmt.Sprintf(`<style>.read-marker-%d{display:none !important;}</style>`, readMarkerRev))
@@ -5182,6 +5184,8 @@ Loop:
 		}
 
 		if msgTyp.Typ == database.DeleteMsg {
+			// Delete msg from the map that keep track of unread messages.
+			// If the map is now empty, we hide the read-marker.
 			delete(msgsMap, msgTyp.Msg.ID)
 			if len(msgsMap) == 0 {
 				send(fmt.Sprintf(`<style>.read-marker-%d{display:none !important;}</style>`, readMarkerRev))
@@ -5245,6 +5249,7 @@ Loop:
 		isFirstMsg := false
 		renderedMsg := v1.RenderMessage(1, *msg, authUser, data, baseTopBarURL, &readMarkerRendered, &isFirstMsg, csrf, nullUsername)
 
+		// Keep track of unread messages
 		msgsMap[msg.ID] = struct{}{}
 
 		send(renderedMsg)