VrShell background implemented in JS.

chrome/browser/resources/vr_shell/vr_shell_ui.js

Index: chrome/browser/resources/vr_shell/vr_shell_ui.js
diff --git a/chrome/browser/resources/vr_shell/vr_shell_ui.js b/chrome/browser/resources/vr_shell/vr_shell_ui.js
index ce1b792f877b67956a79ee4fe46c0b9198421eb4..c91e1edcac5d288e9eca9f7333725b55d38ec607 100644
--- a/chrome/browser/resources/vr_shell/vr_shell_ui.js
+++ b/chrome/browser/resources/vr_shell/vr_shell_ui.js
@@ -453,19 +453,68 @@ var vrShellUi = (function() {
       ui.flush();
     }
   };
+  
+  class Background {
+    constructor() {
+      // Make ground plane.
+      let groundPlane = new api.UiElementUpdate();
+      groundPlane.setVisible(true);
+      groundPlane.setSize(25.0, 25.0);
+      groundPlane.setFill(new api.OpaqueGradient({r: 0.48, g: 0.48, b: 0.48, a:1},
+        {r: 0.57, g: 0.57, b: 0.57, a:1}));
+      groundPlane.setTranslation(0, -2, 0);
+      groundPlane.setRotation(1.0, 0.0, 0.0, -Math.PI/2);
+      this.groundPlaneId = ui.addElement(groundPlane);
+      
+      // Make ceiling plane.
+      let ceilingPlane = new api.UiElementUpdate();
+      ceilingPlane.setVisible(true);
+      ceilingPlane.setSize(25.0, 25.0);
+      ceilingPlane.setFill(new api.OpaqueGradient({r: 0.48, g: 0.48, b: 0.48, a:1},
+        {r: 0.57, g: 0.57, b: 0.57, a:1}));
+      ceilingPlane.setTranslation(0, 2, 0);
+      ceilingPlane.setRotation(1.0, 0.0, 0.0, Math.PI/2);
+      this.ceilingPlaneId = ui.addElement(ceilingPlane);
+      
+      // Ground grid.
+      let groundGrid = new api.UiElementUpdate();
+      groundGrid.setVisible(true);
+      groundGrid.setSize(25.0, 25.0);
+      groundGrid.setFill(new api.GridGradient({r: 0.57, g: 0.57, b: 0.57, a:1},
+        {r: 0.57, g: 0.57, b: 0.57, a:1}, 10));
+      groundGrid.setTranslation(0, -1.99, 0);
+      groundGrid.setRotation(1.0, 0.0, 0.0, -Math.PI/2);
+      this.groundGridId = ui.addElement(groundGrid);
+    }
+    
+    setEnabled(enabled) {
+      let groundPlaneUpdate = new api.UiElementUpdate();
+      groundPlaneUpdate.setVisible(enabled);
+      ui.updateElement(this.groundPlaneId, groundPlaneUpdate);
+      let ceilingPlaneUpdate = new api.UiElementUpdate();
+      ceilingPlaneUpdate.setVisible(enabled);
+      ui.updateElement(this.ceilingPlaneId, ceilingPlaneUpdate);
+      let groundGridUpdate = new api.UiElementUpdate();
+      groundGridUpdate.setVisible(enabled);
+      ui.updateElement(this.groundGridId, groundGridUpdate);
+    }
+  };
 
   class UiManager {
     constructor() {
       this.mode = api.Mode.UNKNOWN;
       this.menuMode = false;
       this.fullscreen = false;
-
+      

[mthiesse, 2017/01/31 20:54:54]

nit: whitespace here and below

[tiborg1, 2017/02/01 00:22:18]

Done.

+      this.background = new Background();
       this.contentQuad = new ContentQuad();
       let contentId = this.contentQuad.getElementId();
 
       this.controls = new Controls(contentId);
       this.secureOriginWarnings = new SecureOriginWarnings();
       this.urlIndicator = new UrlIndicator();
+      
+      
     }
 
     setMode(mode, menuMode, fullscreen) {
@@ -487,6 +536,7 @@ var vrShellUi = (function() {
               0 :
               URL_INDICATOR_VISIBILITY_TIMEOUT_MS);
       this.secureOriginWarnings.setEnabled(mode == api.Mode.WEB_VR);
+      this.background.setEnabled(mode == api.Mode.STANDARD && !menuMode);
 
       api.setUiCssSize(
           uiRootElement.clientWidth, uiRootElement.clientHeight, UI_DPR);