VR: Enable browsing for CCT and make ui_scene_manager aware of whether we're in CCT.

chrome/browser/android/vr_shell/ui_scene_manager.cc

 // Copyright 2017 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_manager.h"
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/android/vr_shell/textures/ui_texture.h"
 #include "chrome/browser/android/vr_shell/ui_elements/permanent_security_warning.h"
 #include "chrome/browser/android/vr_shell/ui_elements/textured_element.h"
@@ skipping 21 matching lines @@
 static constexpr float kContentVerticalOffset = -0.26;
 static constexpr float kBackplaneSize = 1000.0;
 static constexpr float kBackgroundDistanceMultiplier = 1.414;
 
 static constexpr float kSceneSize = 25.0;
 static constexpr float kSceneHeight = 4.0;
 static constexpr int kFloorGridlineCount = 40;
 static constexpr vr::Colorf kBackgroundHorizonColor = {0.57, 0.57, 0.57, 1.0};
 static constexpr vr::Colorf kBackgroundCenterColor = {0.48, 0.48, 0.48, 1.0};
 
+// Placeholders to demonstrate UI changes when in CCT.
+static constexpr vr::Colorf kCctBackgroundHorizonColor = {0.2, 0.6, 0.2, 1.0};
+static constexpr vr::Colorf kCctBackgroundCenterColor = {0.13, 0.52, 0.13, 1.0};
+
 // Tiny distance to offset textures that should appear in the same plane.
 static constexpr float kTextureOffset = 0.01;
 
 }  // namespace
 
-UiSceneManager::UiSceneManager(VrBrowserInterface* browser, UiScene* scene)
-    : browser_(browser), scene_(scene), weak_ptr_factory_(this) {
+UiSceneManager::UiSceneManager(VrBrowserInterface* browser,
+                               UiScene* scene,
+                               bool in_cct)
+    : browser_(browser),
+      scene_(scene),
+      in_cct_(in_cct),
+      weak_ptr_factory_(this) {
   CreateBackground();
   CreateContentQuad();
   CreateSecurityWarnings();
 }
 
 UiSceneManager::~UiSceneManager() {}
 
 void UiSceneManager::CreateSecurityWarnings() {
   std::unique_ptr<UiElement> element;
 
   // TODO(mthiesse): Programatically compute the proper texture size for these
   // textured UI elements.
   element = base::MakeUnique<PermanentSecurityWarning>(512);
   element->set_id(AllocateId());
   element->set_fill(vr_shell::Fill::NONE);
   element->set_size({kPermanentWarningWidth, kPermanentWarningHeight, 1});
   element->set_scale({kWarningDistance, kWarningDistance, 1});
-  element->set_translation({0, kWarningDistance * sin(kWarningAngleRadians),
-                            -kWarningDistance * cos(kWarningAngleRadians)});
+  element->set_translation(
+      gfx::Vector3dF(0, kWarningDistance * sin(kWarningAngleRadians),
+                     -kWarningDistance * cos(kWarningAngleRadians)));
   element->set_rotation({1.0f, 0, 0, kWarningAngleRadians});
   element->set_visible(false);
   element->set_hit_testable(false);
   element->set_lock_to_fov(true);
   permanent_security_warning_ = element.get();
   scene_->AddUiElement(std::move(element));
 
   element = base::MakeUnique<TransientSecurityWarning>(1024);
   element->set_id(AllocateId());
   element->set_fill(vr_shell::Fill::NONE);
@@ skipping 31 matching lines @@
   browser_ui_elements_.push_back(element.get());
   scene_->AddUiElement(std::move(element));
 
   // Limit reticle distance to a sphere based on content distance.
   scene_->SetBackgroundDistance(main_content_->translation().z() *
                                 -kBackgroundDistanceMultiplier);
 }
 
 void UiSceneManager::CreateBackground() {
   std::unique_ptr<UiElement> element;
+  vr::Colorf horizon =
+      in_cct_ ? kCctBackgroundHorizonColor : kBackgroundHorizonColor;
+  vr::Colorf center =
+      in_cct_ ? kCctBackgroundCenterColor : kBackgroundCenterColor;
 
   // Floor.
   element = base::MakeUnique<UiElement>();
   element->set_id(AllocateId());
   element->set_size({kSceneSize, kSceneSize, 1.0});
   element->set_translation({0.0, -kSceneHeight / 2, 0.0});
   element->set_rotation({1.0, 0.0, 0.0, -M_PI / 2.0});
   element->set_fill(vr_shell::Fill::OPAQUE_GRADIENT);
-  element->set_edge_color(kBackgroundHorizonColor);
-  element->set_center_color(kBackgroundCenterColor);
+  element->set_edge_color(horizon);
+  element->set_center_color(center);
   element->set_draw_phase(0);
   browser_ui_elements_.push_back(element.get());
   scene_->AddUiElement(std::move(element));
 
   // Ceiling.
   element = base::MakeUnique<UiElement>();
   element->set_id(AllocateId());
   element->set_fill(vr_shell::Fill::OPAQUE_GRADIENT);
   element->set_size({kSceneSize, kSceneSize, 1.0});
   element->set_translation({0.0, kSceneHeight / 2, 0.0});
   element->set_rotation({1.0, 0.0, 0.0, M_PI / 2});
   element->set_fill(vr_shell::Fill::OPAQUE_GRADIENT);
-  element->set_edge_color(kBackgroundHorizonColor);
-  element->set_center_color(kBackgroundCenterColor);
+  element->set_edge_color(horizon);
+  element->set_center_color(center);
   element->set_draw_phase(0);
   browser_ui_elements_.push_back(element.get());
   scene_->AddUiElement(std::move(element));
 
   // Floor grid.
   element = base::MakeUnique<UiElement>();
   element->set_id(AllocateId());
   element->set_fill(vr_shell::Fill::GRID_GRADIENT);
   element->set_size({kSceneSize, kSceneSize, 1.0});
   element->set_translation({0.0, -kSceneHeight / 2 + kTextureOffset, 0.0});
   element->set_rotation({1.0, 0.0, 0.0, -M_PI / 2});
   element->set_fill(vr_shell::Fill::GRID_GRADIENT);
-  element->set_center_color(kBackgroundHorizonColor);
-  vr::Colorf edge_color = kBackgroundHorizonColor;
+  element->set_center_color(horizon);
+  vr::Colorf edge_color = horizon;
   edge_color.a = 0.0;
   element->set_edge_color(edge_color);
   element->set_gridline_count(kFloorGridlineCount);
   element->set_draw_phase(0);
   browser_ui_elements_.push_back(element.get());
   scene_->AddUiElement(std::move(element));
 
-  scene_->SetBackgroundColor(kBackgroundHorizonColor);
+  scene_->SetBackgroundColor(horizon);
 }
 
 base::WeakPtr<UiSceneManager> UiSceneManager::GetWeakPtr() {
   return weak_ptr_factory_.GetWeakPtr();
 }
 
 void UiSceneManager::SetWebVRMode(bool web_vr) {
   web_vr_mode_ = web_vr;
 
   // Make all VR scene UI elements visible if not in WebVR.
@@ skipping 32 matching lines @@
 
 void UiSceneManager::OnSecurityWarningTimer() {
   transient_security_warning_->set_visible(false);
 }
 
 int UiSceneManager::AllocateId() {
   return next_available_id_++;
 }
 
 }  // namespace vr_shell