brief alert for distance arrow, see #196

phetsims · Mar 18, 2020 · 4a2111a · 4a2111a
1 parent 563aa94
commit 4a2111a
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diff --git a/js/GFLBA11yStrings.js b/js/GFLBA11yStrings.js
@@ -101,6 +101,9 @@ const GFLBA11yStrings = {
   verboseDistanceArrowDescription: {
     value: 'Centers of spheres, {{distance}} kilometers apart.'
   },
+  briefDistanceArrowDescription: {
+    value: 'Centers {{distance}} kilometers apart.'
+  },
 
   // mass spheres
   redColor: {

diff --git a/js/view/DistanceArrowNode.js b/js/view/DistanceArrowNode.js
@@ -24,6 +24,7 @@ const distanceUnitsPatternString = gravityForceLabBasicsStrings.distanceUnitsPat
 
 // a11y strings
 const verboseDistanceArrowDescriptionString = GFLBA11yStrings.verboseDistanceArrowDescription.value;
+const briefDistanceArrowDescriptionString = GFLBA11yStrings.briefDistanceArrowDescription.value;
 
 // constants
 const HEAD_WIDTH = 6;
@@ -72,9 +73,14 @@ class DistanceArrowNode extends Node {
       options.shapeHitDetector.addNode( this );
       options.shapeHitDetector.hitShapeEmitter.addListener( hitTarget => {
         if ( hitTarget === this ) {
-          webSpeaker.speak( StringUtils.fillIn( verboseDistanceArrowDescriptionString, {
-            distance: model.separationProperty.get() / 1000 // m to km
-          } ) );
+          if ( webSpeaker.exploreModeProperty.get() ) {
+            const verboseMode = webSpeaker.exploreModeVerbosityProperty.get() === webSpeaker.Verbosity.VERBOSE;
+            const patternString = verboseMode ? verboseDistanceArrowDescriptionString : briefDistanceArrowDescriptionString;
+
+            webSpeaker.speak( StringUtils.fillIn( patternString, {
+              distance: model.separationProperty.get() / 1000 // m to km
+            } ) );
+          }
         }
       } );
     }