[vr] Close exit prompt when clicking on background

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/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_prompt.h"
+#include "chrome/browser/android/vr_shell/ui_elements/exit_prompt_backplane.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"
 #include "chrome/browser/android/vr_shell/ui_elements/ui_element.h"
 #include "chrome/browser/android/vr_shell/ui_elements/ui_element_debug_id.h"
 #include "chrome/browser/android/vr_shell/ui_elements/url_bar.h"
 #include "chrome/browser/android/vr_shell/ui_elements/video_capture_indicator.h"
@@ skipping 18 matching lines @@
 
 static constexpr float kContentDistance = 2.5;
 static constexpr float kContentWidth = 0.96 * kContentDistance;
 static constexpr float kContentHeight = 0.64 * kContentDistance;
 static constexpr float kContentVerticalOffset = -0.1 * kContentDistance;
 static constexpr float kBackplaneSize = 1000.0;
 static constexpr float kBackgroundDistanceMultiplier = 1.414;
 
 static constexpr float kExitPromptWidth = 0.672 * kContentDistance;
 static constexpr float kExitPromptHeight = 0.2 * kContentDistance;
+static constexpr float kExitPromptBackplaneSize = 1000.0;
 
 static constexpr float kUrlBarDistance = 2.4;
 static constexpr float kUrlBarWidth = 0.672 * kUrlBarDistance;
 static constexpr float kUrlBarHeight = 0.088 * kUrlBarDistance;
 static constexpr float kUrlBarVerticalOffset = -0.516 * kUrlBarDistance;
 static constexpr float kUrlBarRotationRad = -0.175;
 
 static constexpr float kLoadingIndicatorWidth = 0.24 * kUrlBarDistance;
 static constexpr float kLoadingIndicatorHeight = 0.008 * kUrlBarDistance;
 static constexpr float kLoadingIndicatorVerticalOffset =
@@ skipping 27 matching lines @@
       web_vr_mode_(in_web_vr),
       weak_ptr_factory_(this) {
   CreateBackground();
   CreateContentQuad();
   CreateSecurityWarnings();
   CreateSystemIndicators();
   CreateUrlBar();
   if (in_cct_)
     CreateCloseButton();
   CreateScreenDimmer();
+  CreateExitPrompt();
 
   ConfigureScene();
   ConfigureSecurityWarnings();
 }
 
 UiSceneManager::~UiSceneManager() {}
 
 void UiSceneManager::CreateScreenDimmer() {
   std::unique_ptr<UiElement> element;
   element = base::MakeUnique<ScreenDimmer>();
@@ skipping 104 matching lines @@
 
   // Place an invisible but hittable plane behind the content quad, to keep the
   // reticle roughly planar with the content if near content.
   element = base::MakeUnique<UiElement>();
   element->set_debug_id(kBackplane);
   element->set_id(AllocateId());
   element->set_fill(vr_shell::Fill::NONE);
   element->set_size({kBackplaneSize, kBackplaneSize, 1.0});
   element->set_translation({0.0, 0.0, -kTextureOffset});
   element->set_parent_id(main_content_->id());
-  main_content_backplane_ = element.get();
   content_elements_.push_back(element.get());
   scene_->AddUiElement(std::move(element));
 
-  element = base::MakeUnique<ExitPrompt>(
-      512,
-      base::Bind(&UiSceneManager::OnExitPromptPrimaryButtonClicked,
-                 base::Unretained(this)),
-      base::Bind(&UiSceneManager::OnExitPromptSecondaryButtonClicked,
-                 base::Unretained(this)));
-  element->set_debug_id(kExitPrompt);
-  element->set_id(AllocateId());
-  element->set_fill(vr_shell::Fill::NONE);
-  element->set_size({kExitPromptWidth, kExitPromptHeight, 1});
-  element->set_translation({0.0, 0.0, kTextureOffset});
-  element->set_parent_id(main_content_->id());
-  element->set_visible(false);
-  exit_prompt_ = 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;
 
   // Floor.
   element = base::MakeUnique<UiElement>();
@@ skipping 63 matching lines @@
   element->set_id(AllocateId());
   element->set_fill(vr_shell::Fill::NONE);
   element->set_translation(
       gfx::Vector3dF(0, kContentVerticalOffset - (kContentHeight / 2) - 0.3,
                      -kContentDistance + 0.4));
   element->set_size(gfx::Vector3dF(0.2, 0.2, 1));
   control_elements_.push_back(element.get());
   scene_->AddUiElement(std::move(element));
 }
 
+void UiSceneManager::CreateExitPrompt() {
+  std::unique_ptr<UiElement> element = base::MakeUnique<ExitPrompt>(
+      512,
+      base::Bind(&UiSceneManager::OnExitPromptPrimaryButtonClicked,
+                 base::Unretained(this)),
+      base::Bind(&UiSceneManager::OnExitPromptSecondaryButtonClicked,
+                 base::Unretained(this)));
+  element->set_debug_id(kExitPrompt);
+  element->set_id(AllocateId());
+  element->set_fill(vr_shell::Fill::NONE);
+  element->set_size({kExitPromptWidth, kExitPromptHeight, 1});
+  element->set_translation({0.0, 0.0, kTextureOffset});
+  element->set_parent_id(main_content_->id());
+  element->set_visible(false);
+  exit_prompt_ = element.get();
+  scene_->AddUiElement(std::move(element));
+
+  // Place an invisible but hittable plane behind the exit prompt, to keep the
+  // reticle roughly planar with the content if near content.
+  element = base::MakeUnique<ExitPromptBackplane>(base::Bind(
+      &UiSceneManager::OnExitPromptBackplaneClicked, base::Unretained(this)));
+  element->set_debug_id(kExitPromptBackplane);
+  element->set_id(AllocateId());
+  element->set_fill(vr_shell::Fill::NONE);
+  element->set_size({kExitPromptBackplaneSize, kExitPromptBackplaneSize, 1.0});
+  element->set_translation({0.0, 0.0, -kTextureOffset});
+  element->set_parent_id(exit_prompt_->id());
+  exit_prompt_backplane_ = element.get();
+  content_elements_.push_back(element.get());
+  scene_->AddUiElement(std::move(element));
+}
+
 base::WeakPtr<UiSceneManager> UiSceneManager::GetWeakPtr() {
   return weak_ptr_factory_.GetWeakPtr();
 }
 
 void UiSceneManager::SetWebVrMode(bool web_vr) {
   if (web_vr_mode_ == web_vr)
     return;
   web_vr_mode_ = web_vr;
   ConfigureScene();
   ConfigureSecurityWarnings();
   audio_capture_indicator_->set_visible(!web_vr && audio_capturing_);
   video_capture_indicator_->set_visible(!web_vr && video_capturing_);
   screen_capture_indicator_->set_visible(!web_vr && screen_capturing_);
 }
 
 void UiSceneManager::ConfigureScene() {
   exit_warning_->SetEnabled(scene_->is_exiting());
-  exit_prompt_->SetEnabled(scene_->is_prompting_to_exit());
   screen_dimmer_->SetEnabled(scene_->is_exiting());
 
   // Controls (URL bar, loading progress, etc).
   bool controls_visible = !web_vr_mode_ && !fullscreen_;
   for (UiElement* element : control_elements_) {
     element->SetEnabled(controls_visible && !scene_->is_prompting_to_exit());
   }
 
   // Content elements.
-  main_content_->SetEnabled(!web_vr_mode_ && !scene_->is_prompting_to_exit());
-  main_content_backplane_->SetEnabled(!web_vr_mode_);
+  for (UiElement* element : content_elements_) {
+    element->SetEnabled(!web_vr_mode_ && !scene_->is_prompting_to_exit());
+  }
+
   // Background elements.
   for (UiElement* element : background_elements_) {
     element->SetEnabled(!web_vr_mode_);
   }
 
+  // Exit prompt.
+  bool showExitPrompt = !web_vr_mode_ && scene_->is_prompting_to_exit();
+  exit_prompt_->SetEnabled(showExitPrompt);
+  exit_prompt_backplane_->SetEnabled(showExitPrompt);
+
   // Update content quad parameters depending on fullscreen.
   // TODO(http://crbug.com/642937): Animate fullscreen transitions.
   if (fullscreen_) {
     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});
@@ skipping 80 matching lines @@
   browser_->NavigateBack();
 }
 
 void UiSceneManager::OnSecurityIconClicked() {
   if (scene_->is_prompting_to_exit())
     return;
   scene_->set_is_prompting_to_exit(true);
   ConfigureScene();
 }
 
-void UiSceneManager::OnExitPromptPrimaryButtonClicked() {
+void UiSceneManager::OnExitPromptBackplaneClicked() {
+  CloseExitPrompt();
+}
+
+void UiSceneManager::CloseExitPrompt() {
   if (!scene_->is_prompting_to_exit())
     return;
   scene_->set_is_prompting_to_exit(false);
   ConfigureScene();
 }
 
+void UiSceneManager::OnExitPromptPrimaryButtonClicked() {
+  CloseExitPrompt();
+}
+
 void UiSceneManager::OnExitPromptSecondaryButtonClicked() {
   OnUnsupportedMode(UiUnsupportedMode::kUnhandledPageInfo);
 }
 
 void UiSceneManager::SetURL(const GURL& gurl) {
   url_bar_->SetURL(gurl);
 }
 
 void UiSceneManager::SetSecurityLevel(security_state::SecurityLevel level) {
   url_bar_->SetSecurityLevel(level);
@@ skipping 37 matching lines @@
   if (fullscreen_)
     return ColorScheme::kModeFullscreen;
   return ColorScheme::kModeNormal;
 }
 
 const ColorScheme& UiSceneManager::color_scheme() const {
   return ColorScheme::GetColorScheme(mode());
 }
 
 }  // namespace vr_shell