[sigma] do not render labels when forceatlas is on

src/Gargantext/Components/GraphExplorer/Resources.purs

@@ -111,7 +111,7 @@ drawGraphCpt = R.memo' $ here.component "graph" cpt where
               Nothing -> do
                 _ <- ECC.error "elRef is empty"
                 pure $ Left "elRef is empty"
-              Just el -> Sigma.sigma el {settings: sigmaSettings theme}
+              Just el -> Sigma.sigma el { settings: sigmaSettings theme }
             case eSigma of
               Left err -> here.warn2 "[graphCpt] error creating sigma" err
               Right sig -> do
@@ -133,6 +133,7 @@ drawGraphCpt = R.memo' $ here.component "graph" cpt where
                   Sigmax.bindSelectedNodesClick sigma selectedNodeIds multiSelectEnabled
                   Sigmax.bindShiftWheel sigma mouseSelectorSize
                   _ <- Sigma.bindMouseSelectorPlugin sigma
+                  Sigma.setSettings sigma { renderLabels: false }
                   pure unit
 
                 Sigmax.setSigmaEdgesVisibility sig { edgeConfluence: edgeConfluence'
@@ -281,6 +282,7 @@ type SigmaSettings =
   -- , nodeBorderColor :: String
   -- , nodeHoverColor :: String
   --, nodesPowRatio :: Number
+  , renderLabels :: Boolean
   -- , rescaleIgnoreSize :: Boolean
   -- , scalingMode :: String
   -- , sideMargin :: Number
@@ -349,6 +351,7 @@ sigmaSettings theme =
   -- , mouseZoomDuration : 150.0
   -- , nodeBorderColor : "default"           -- choices: "default" color vs. "node" color
   --, nodesPowRatio  : 10.8
+  , renderLabels: false  -- initially false, because of forceatlas
   -- , rescaleIgnoreSize  : false
   -- , singleHover  : true
   -- , touchEnabled  : true

src/Gargantext/Components/GraphExplorer/Toolbar/Controls.purs

@@ -21,6 +21,7 @@ import Gargantext.Components.GraphExplorer.Types as GET
 import Gargantext.Hooks.Session (useSession)
 import Gargantext.Hooks.Sigmax.ForceAtlas2 as ForceAtlas
 import Gargantext.Hooks.Sigmax as Sigmax
+import Gargantext.Hooks.Sigmax.Sigma as Sigma
 import Gargantext.Hooks.Sigmax.Types as SigmaxT
 import Gargantext.Types as GT
 import Gargantext.Utils.Range as Range
@@ -101,8 +102,12 @@ controlsCpt = R.memo' $ here.component "controls" cpt where
     -- NOTE This is a hack anyways. It's force atlas that should be fixed.
     R.useEffect2' sigmaRef forceAtlasState' $ do
       T.modify_ (SigmaxT.forceAtlasEdgeState forceAtlasState') showEdges
-      v <- T.read showEdges
-      here.log2 "[controls] modifed showEdges to forceAtlasState'" v
+      let renderLabels = SigmaxT.forceAtlasLabelState forceAtlasState'
+      here.log2 "[controls] renderLabels" renderLabels
+      Sigmax.dependOnSigma (R.readRef sigmaRef) "[graphCpt (Cleanup)] no sigma" $ \sigma -> do
+          Sigma.setSettings sigma { renderLabels }
+      -- v <- T.read showEdges
+      -- here.log2 "[controls] modifed showEdges to forceAtlasState'" v
 
     -- Automatic opening of sidebar when a node is selected (but only first time).
     R.useEffect' $ do

src/Gargantext/Hooks/Sigmax/Sigma.js

@@ -165,7 +165,7 @@ function _sigma(left, right, el, opts) {
   try {
     let graph = new Graph();
     let s = new sigma(graph, el, opts.settigns);
-    console.log('[_sigma] initializing sigma with el', el, 'opts', opts, 'sigma', s);
+    console.log('[_sigma] initializing sigma with el', el, 'opts', opts.settings, 'sigma', s);
     console.log('[_sigma] labelRenderedSizeThreshold', opts.settings.labelRenderedSizeThreshold);
     sigmaMouseSelector(s);
     return right(s);
@@ -207,6 +207,7 @@ let dummy = function() {};
 
 let _setSettings = function(g, settings) {
   for(const key in settings) {
+    //console.log('[setSettings] key', key, settings[key]);
     g.setSetting(key, settings[key]);
   }
 }

src/Gargantext/Hooks/Sigmax/Types.purs

@@ -178,7 +178,6 @@ toggleForceAtlasState Killed = InitialRunning
 -- | NOTE ETempHiddenThenShow state is a hack for force atlas
 -- | flickering. Ideally it should be removed from here.
 data ShowEdgesState = EShow | EHide | ETempHiddenThenShow
-
 derive instance Generic ShowEdgesState _
 instance Eq ShowEdgesState where
   eq = genericEq
@@ -199,21 +198,6 @@ toggleShowEdgesState s =
   else
     EHide
 
--- | Return the temporary hidden state, if applicable.
-edgeStateTempHide :: ShowEdgesState -> ShowEdgesState
-edgeStateTempHide EHide = EHide
-edgeStateTempHide _ = ETempHiddenThenShow
-
--- | Whether, after disabling the temp state, edges will be shown or hidden.
-edgeStateWillBeHidden :: ShowEdgesState -> Boolean
-edgeStateWillBeHidden EHide = true
-edgeStateWillBeHidden _ = false
-
--- | Get rid of the temporary transition
-edgeStateStabilize :: ShowEdgesState -> ShowEdgesState
-edgeStateStabilize ETempHiddenThenShow = EShow
-edgeStateStabilize s = s
-
 -- | Return state in which showEdges should be depending on forceAtlasState
 forceAtlasEdgeState :: ForceAtlasState -> ShowEdgesState -> ShowEdgesState
 forceAtlasEdgeState InitialRunning EShow = ETempHiddenThenShow
@@ -227,6 +211,21 @@ forceAtlasEdgeState Killed ETempHiddenThenShow = EShow
 forceAtlasEdgeState Killed es = es
 
 
+-- Similar situation for labels: hide them when force atlas is
+-- running, to prevent flickering.
+-- However, for labels this is simpler because we don't have a toggle
+-- button.
+
+-- | Return state in which labels should be depending on forceAtlasState
+forceAtlasLabelState :: ForceAtlasState -> Boolean
+forceAtlasLabelState InitialRunning = false
+forceAtlasLabelState InitialStopped = true
+forceAtlasLabelState Running = false
+forceAtlasLabelState Paused = true
+forceAtlasLabelState Killed = true
+
+
+
 louvainEdges :: SGraph -> Array (Record Louvain.Edge)
 louvainEdges g = Seq.toUnfoldable $ Seq.map (\{source, target, weight} -> {source, target, weight}) (graphEdges g)
 louvainNodes :: SGraph -> Array Louvain.Node