Class: Mbeditor::CollaborationChannel

Inherits:
Object
  • Object
show all
Includes:
ChannelAuthentication
Defined in:
app/channels/mbeditor/collaboration_channel.rb

Overview

Per-file relay edge for realtime collaborative editing. The channel never interprets the opaque Yjs bytes it carries — it persists them through CollaborationDocStore and relays them to the other subscribers on a stream keyed by a digest of the workspace-relative path. It degrades gracefully when ActionCable is absent, matching the EditorChannel conditional-base pattern.

Constant Summary collapse

STREAM_PREFIX = 
"mbeditor_collab"

Instance Method Summary collapse

Methods included from ChannelAuthentication

#mbeditor_authenticated?

Instance Method Details

#awareness(data) ⇒ Object 



47
48
49
50
51
52
 
# File 'app/channels/mbeditor/collaboration_channel.rb', line 47

def awareness(data)
  bytes = data["awareness"]
  return if bytes.nil?

  relay("type" => "awareness", "awareness" => bytes)
end

#doc_update(data) ⇒ Object 



31
32
33
34
35
36
37
 
# File 'app/channels/mbeditor/collaboration_channel.rb', line 31

def doc_update(data)
  bytes = data["update"]
  return if bytes.nil?

  CollaborationDocStore.record_update(room_key, bytes)
  relay("type" => "doc_update", "update" => bytes)
end

#snapshot(data) ⇒ Object 



39
40
41
42
43
44
45
 
# File 'app/channels/mbeditor/collaboration_channel.rb', line 39

def snapshot(data)
  bytes = data["snapshot"]
  return if bytes.nil?

  CollaborationDocStore.replace_snapshot(room_key, bytes)
  relay("type" => "snapshot", "snapshot" => bytes)
end

#subscribed ⇒ Object 



17
18
19
20
21
22
23
24
25
 
# File 'app/channels/mbeditor/collaboration_channel.rb', line 17

def subscribed
  return unless mbeditor_authenticated?

  @path = params[:path].to_s
  return reject if @path.empty? && respond_to?(:reject, true)

  stream_from stream_name if respond_to?(:stream_from)
  transmit_initial_state
end

#unsubscribed ⇒ Object 



27
28
29
 
# File 'app/channels/mbeditor/collaboration_channel.rb', line 27

def unsubscribed
  # no-op
end