[vr] Add incognito coloring

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/callback.h"
 #include "base/memory/ptr_util.h"
-#include "chrome/browser/android/vr_shell/color_scheme.h"
 #include "chrome/browser/android/vr_shell/textures/close_button_texture.h"
 #include "chrome/browser/android/vr_shell/textures/ui_texture.h"
 #include "chrome/browser/android/vr_shell/ui_elements/audio_capture_indicator.h"
 #include "chrome/browser/android/vr_shell/ui_elements/button.h"
 #include "chrome/browser/android/vr_shell/ui_elements/exit_warning.h"
 #include "chrome/browser/android/vr_shell/ui_elements/loading_indicator.h"
 #include "chrome/browser/android/vr_shell/ui_elements/permanent_security_warning.h"
 #include "chrome/browser/android/vr_shell/ui_elements/screen_capture_indicator.h"
 #include "chrome/browser/android/vr_shell/ui_elements/screen_dimmer.h"
 #include "chrome/browser/android/vr_shell/ui_elements/transient_security_warning.h"
@@ skipping 228 matching lines @@
   element->set_fill(vr_shell::Fill::OPAQUE_GRADIENT);
   element->set_draw_phase(0);
   ceiling_ = element.get();
   content_elements_.push_back(element.get());
   scene_->AddUiElement(std::move(element));
 
   // Floor grid.
   element = base::MakeUnique<UiElement>();
   element->set_debug_id(kFloorGrid);
   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_gridline_count(kFloorGridlineCount);
   element->set_draw_phase(0);
   floor_grid_ = element.get();
   content_elements_.push_back(element.get());
   scene_->AddUiElement(std::move(element));
 
@@ skipping 75 matching lines @@
     main_content_->set_translation(
         {0, kFullscreenVerticalOffset, -kFullscreenDistance});
     main_content_->set_size({kFullscreenWidth, kFullscreenHeight, 1});
   } else {
     // Note that main_content_ is already visible in this case.
     main_content_->set_translation(
         {0, kContentVerticalOffset, -kContentDistance});
     main_content_->set_size({kContentWidth, kContentHeight, 1});
   }
 
-  UpdateBackgroundColor();
+  scene_->SetMode(mode());
   scene_->SetBackgroundDistance(main_content_->translation().z() *
                                 -kBackgroundDistanceMultiplier);
+  UpdateBackgroundColor();
 }
 
 void UiSceneManager::UpdateBackgroundColor() {
-  scene_->SetBackgroundColor(color_scheme().horizon);
+  // TODO(vollick): it would be nice if ceiling, floor and the grid were
+  // UiElement subclasses and could respond to the OnSetMode signal.
   ceiling_->set_center_color(color_scheme().ceiling);
   ceiling_->set_edge_color(color_scheme().horizon);
   floor_->set_center_color(color_scheme().floor);
   floor_->set_edge_color(color_scheme().horizon);
   floor_grid_->set_center_color(color_scheme().floor_grid);
   SkColor floor_grid_edge_color = SkColorSetA(color_scheme().floor_grid, 0);
   floor_grid_->set_edge_color(floor_grid_edge_color);
 }
 
 void UiSceneManager::SetAudioCapturingIndicator(bool enabled) {
   audio_capture_indicator_->set_visible(enabled);
 }
 
 void UiSceneManager::SetVideoCapturingIndicator(bool enabled) {
   video_capture_indicator_->set_visible(enabled);
 }
 
 void UiSceneManager::SetScreenCapturingIndicator(bool enabled) {
   // TODO(asimjour) add the indicator and change the visibility here.
 }
 
 void UiSceneManager::SetWebVrSecureOrigin(bool secure) {
   secure_origin_ = secure;
   ConfigureSecurityWarnings();
 }
 
+void UiSceneManager::SetIncognito(bool incognito) {
+  if (incognito == incognito_)
+    return;
+  incognito_ = incognito;
+  ConfigureScene();
+}
+
 void UiSceneManager::OnAppButtonClicked() {
   // App button click exits the WebVR presentation and fullscreen.
   browser_->ExitPresent();
   browser_->ExitFullscreen();
 }
 
 void UiSceneManager::OnAppButtonGesturePerformed(
     UiInterface::Direction direction) {}
 
 void UiSceneManager::SetFullscreen(bool fullscreen) {
@@ skipping 55 matching lines @@
 }
 
 void UiSceneManager::OnUnsupportedMode(UiUnsupportedMode mode) {
   browser_->OnUnsupportedMode(mode);
 }
 
 int UiSceneManager::AllocateId() {
   return next_available_id_++;
 }
 
+ColorScheme::Mode UiSceneManager::mode() const {
+  if (incognito_)
+    return ColorScheme::kModeIncognito;
+  if (fullscreen_)
+    return ColorScheme::kModeFullscreen;
+  return ColorScheme::kModeNormal;
+}
+
 const ColorScheme& UiSceneManager::color_scheme() const {
-  return ColorScheme::GetColorScheme(fullscreen_ ? ColorScheme::kModeFullscreen
-                                                 : ColorScheme::kModeNormal);
+  return ColorScheme::GetColorScheme(mode());
 }
 
 }  // namespace vr_shell