Merge pull request #653 from gthacoder/meteor-client-whiteboard-slowdown

HTML5 client: merging the whiteboard optimizations.

bigbluebutton-html5/app/client/globals.coffee

@@ -351,6 +351,7 @@ Handlebars.registerHelper 'whiteboardSize', (section) ->
   else
     setInSession 'display_usersList', false
   setInSession 'display_menu', false
+  TimeSync.loggingEnabled = false # suppresses the log messages from timesync
 
 @onLoadComplete = ->
   document.title = "BigBlueButton #{BBB.getMeetingName() ? 'HTML5'}"

bigbluebutton-html5/app/client/views/whiteboard/slide.coffee

@@ -29,6 +29,9 @@ Template.slide.rendered = ->
   wpm.scale(adjustedDimensions.width, adjustedDimensions.height)
 
 @manuallyDisplayShapes = ->
+
+  return if Meteor.WhiteboardCleanStatus.findOne({in_progress: true})?
+
   currentSlide = getCurrentSlideDoc()
   wpm = @whiteboardPaperModel
   shapes = Meteor.Shapes.find({whiteboardId: currentSlide?.slide?.id}).fetch()

bigbluebutton-html5/app/collections/collections.coffee

@@ -4,3 +4,5 @@ Meteor.Meetings = new Meteor.Collection("meetings")
 Meteor.Presentations = new Meteor.Collection("presentations")
 Meteor.Shapes = new Meteor.Collection("shapes")
 Meteor.Slides = new Meteor.Collection("slides")
+
+Meteor.WhiteboardCleanStatus = new Meteor.Collection("whiteboard-clean-status")

bigbluebutton-html5/app/lib/router.coffee

@@ -55,6 +55,7 @@
             Meteor.subscribe 'meetings', meetingId, onReady: =>
               Meteor.subscribe 'presentations', meetingId, onReady: =>
                 Meteor.subscribe 'users', meetingId, userId, authToken, onError: onErrorFunction, onReady: =>
+                  Meteor.subscribe 'whiteboard-clean-status', meetingId, onReady: =>
                     # done subscribing
                     onLoadComplete()
 

bigbluebutton-html5/app/server/collection_methods/shapes.coffee

@@ -67,15 +67,13 @@
 @removeAllShapesFromSlide = (meetingId, whiteboardId) ->
   Meteor.log.info "removeAllShapesFromSlide__" + whiteboardId
   if meetingId? and whiteboardId? and Meteor.Shapes.find({meetingId: meetingId, whiteboardId: whiteboardId})?
-    shapesOnSlide = Meteor.Shapes.find({meetingId: meetingId, whiteboardId: whiteboardId}).fetch()
-    Meteor.log.info "number of shapes:" + shapesOnSlide.length
-    for s in shapesOnSlide
-      Meteor.log.info "shape=" + s.shape.id
-      id = Meteor.Shapes.findOne({meetingId: meetingId, whiteboardId: whiteboardId, "shape.id": s.shape.id})
-      if id?
-        Meteor.Shapes.remove(id._id)
-        Meteor.log.info "----removed shape[" + s.shape.id + "] from " + whiteboardId
-        Meteor.log.info "remaining shapes on the slide:" + Meteor.Shapes.find({meetingId: meetingId, whiteboardId: whiteboardId}).fetch().length
+    Meteor.Shapes.remove {meetingId: meetingId, whiteboardId: whiteboardId}, ->
+      Meteor.log.info "clearing all shapes from slide"
+
+      # After shapes are cleared, wait 1 second and set cleaning off
+      Meteor.setTimeout ->
+        Meteor.WhiteboardCleanStatus.update({meetingId: meetingId}, {$set: {in_progress: false}})
+      , 1000
 
 @removeShapeFromSlide = (meetingId, whiteboardId, shapeId) ->
   shapeToRemove = Meteor.Shapes.findOne({meetingId: meetingId, whiteboardId: whiteboardId, "shape.id": shapeId})
@@ -88,9 +86,13 @@
 # called on server start and meeting end
 @clearShapesCollection = (meetingId) ->
   if meetingId?
-    Meteor.Shapes.remove({meetingId: meetingId}, Meteor.log.info "cleared Shapes Collection (meetingId: #{meetingId}!")
+    Meteor.Shapes.remove {}, ->
+      Meteor.log.info "cleared Shapes Collection (meetingId: #{meetingId}!"
+      Meteor.WhiteboardCleanStatus.update({meetingId: meetingId}, {$set: {in_progress: false}})
   else
-    Meteor.Shapes.remove({}, Meteor.log.info "cleared Shapes Collection (all meetings)!")
+    Meteor.Shapes.remove {}, ->
+      Meteor.log.info "cleared Shapes Collection (all meetings)!"
+      Meteor.WhiteboardCleanStatus.update({meetingId: meetingId}, {$set: {in_progress: false}})
 
 # --------------------------------------------------------------------------------------------
 # end Private methods on server

bigbluebutton-html5/app/server/publish.coffee

@@ -70,3 +70,7 @@ Meteor.publish 'meetings', (meetingId) ->
 Meteor.publish 'presentations', (meetingId) ->
   Meteor.log.info "publishing presentations for #{meetingId}"
   Meteor.Presentations.find({meetingId: meetingId})
+
+Meteor.publish 'whiteboard-clean-status', (meetingId) ->
+  Meteor.log.info "whiteboard clean status #{meetingId}"
+  Meteor.WhiteboardCleanStatus.find({meetingId: meetingId})

bigbluebutton-html5/app/server/redispubsub.coffee

@@ -219,6 +219,11 @@ class Meteor.RedisPubSub
         return
 
       if message.header.name is "get_whiteboard_shapes_reply" and message.payload.requester_id is "nodeJSapp"
+
+        # Create a whiteboard clean status or find one for the current meeting
+        if not Meteor.WhiteboardCleanStatus.findOne({meetingId: meetingId})?
+            Meteor.WhiteboardCleanStatus.insert({meetingId: meetingId, in_progress: false})
+
         for shape in message.payload.shapes
           whiteboardId = shape.wb_id
           addShapeToCollection meetingId, whiteboardId, shape
@@ -238,6 +243,7 @@ class Meteor.RedisPubSub
 
       if message.header.name is "whiteboard_cleared_message"
         whiteboardId = message.payload.whiteboard_id
+        Meteor.WhiteboardCleanStatus.update({meetingId: meetingId}, {$set: {'in_progress': true}})
         removeAllShapesFromSlide meetingId, whiteboardId
         return
 

bigbluebutton-html5/app/server/server.coffee

@@ -2,6 +2,7 @@ Meteor.startup ->
   Meteor.log.info "server start"
 
   #remove all data
+  Meteor.WhiteboardCleanStatus.remove({})
   clearUsersCollection()
   clearChatCollection()
   clearMeetingsCollection()