VrShell background implemented in JS.

chrome/browser/android/vr_shell/ui_scene.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/vr_shell/ui_scene.h"
 
 #include "base/values.h"
 #include "chrome/browser/android/vr_shell/animation.h"
 #include "chrome/browser/android/vr_shell/easing.h"
 #include "chrome/browser/android/vr_shell/ui_elements.h"
@@ skipping 33 matching lines @@
     double value;
     CHECK(item_dict->GetDouble("x", &value));
     output->x = value;
     CHECK(item_dict->GetDouble("y", &value));
     output->y = value;
     CHECK(item_dict->GetDouble("z", &value));
     output->z = value;
   }
 }
 
+void ParseColorf(const base::DictionaryValue& dict,
+                 const std::string& key,
+                 Colorf* output) {
+  const base::DictionaryValue* item_dict;
+  if (dict.GetDictionary(key, &item_dict)) {
+    double value;
+    CHECK(item_dict->GetDouble("r", &value));
+    output->r = value;
+    CHECK(item_dict->GetDouble("g", &value));
+    output->g = value;
+    CHECK(item_dict->GetDouble("b", &value));
+    output->b = value;
+    CHECK(item_dict->GetDouble("a", &value));
+    output->a = value;
+  }
+}
+
 void ParseRotationAxisAngle(const base::DictionaryValue& dict,
                             const std::string& key, RotationAxisAngle* output) {
   const base::DictionaryValue* item_dict;
   if (dict.GetDictionary(key, &item_dict)) {
     double value;
     CHECK(item_dict->GetDouble("x", &value));
     output->x = value;
     CHECK(item_dict->GetDouble("y", &value));
     output->y = value;
     CHECK(item_dict->GetDouble("z", &value));
@@ skipping 316 matching lines @@
   int parent_id;
   if (dict.GetInteger("parentId", &parent_id)) {
     CHECK_GE(parent_id, 0);
     CHECK_NE(GetUiElementById(parent_id), nullptr);
     element->parent_id = parent_id;
   }
 
   dict.GetBoolean("visible", &element->visible);
   dict.GetBoolean("hitTestable", &element->hit_testable);
   dict.GetBoolean("lockToFov", &element->lock_to_fov);
-  ParseRecti(dict, "copyRect", &element->copy_rect);
   Parse2DVec3f(dict, "size", &element->size);
   ParseVec3f(dict, "scale", &element->scale);
   ParseRotationAxisAngle(dict, "rotation", &element->rotation);
   ParseVec3f(dict, "translation", &element->translation);
   double opacity;
   if (dict.GetDouble("opacity", &opacity)) {
     element->opacity = opacity;
   }
 
   if (dict.GetBoolean("contentQuad", &element->content_quad)) {
     if (element->content_quad) {
       CHECK_EQ(content_element_, nullptr);
       content_element_ = element;
     } else {
       if (content_element_ == element) {
         content_element_ = nullptr;
       }
     }
   }
 
   if (dict.GetInteger("xAnchoring",
                       reinterpret_cast<int*>(&element->x_anchoring))) {
     CHECK_GE(element->parent_id, 0);
   }
   if (dict.GetInteger("yAnchoring",
                       reinterpret_cast<int*>(&element->y_anchoring))) {
     CHECK_GE(element->parent_id, 0);
   }
+
+  // Parse the element fill.
+  if (dict.GetInteger("fillType", reinterpret_cast<int*>(&element->fill))) {
+    switch (element->fill) {
+      case Fill::SPRITE:
+        ParseRecti(dict, "copyRect", &element->copy_rect);
+        break;
+      case Fill::OPAQUE_GRADIENT:
+        ParseColorf(dict, "edgeColor", &element->edge_color);
+        ParseColorf(dict, "centerColor", &element->center_color);
+      case Fill::GRID_GRADIENT:
+        ParseColorf(dict, "edgeColor", &element->edge_color);
+        ParseColorf(dict, "centerColor", &element->center_color);
+        int value;
+        dict.GetInteger("tileNumber", &value);
+        element->tile_number = value;
+        break;
+      default:
+        element->fill = Fill::NONE;
+        break;
+    }
+  }
 }
 
 }  // namespace vr_shell