Move HomeCard to avoid virtual keyboard when it's shown.

athena/main/athena_main.cc

 // Copyright 2014 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 "apps/shell/app/shell_main_delegate.h"
 #include "apps/shell/browser/shell_browser_main_delegate.h"
 #include "apps/shell/browser/shell_desktop_controller.h"
 #include "apps/shell/browser/shell_extension_system.h"
 #include "apps/shell/common/switches.h"
 #include "apps/shell/renderer/shell_renderer_main_delegate.h"
 #include "athena/content/public/content_activity_factory.h"
 #include "athena/content/public/content_app_model_builder.h"
 #include "athena/home/public/home_card.h"
 #include "athena/main/athena_app_window_controller.h"
 #include "athena/main/athena_launcher.h"
 #include "athena/main/debug/debug_window.h"
 #include "athena/main/placeholder.h"
 #include "athena/main/url_search_provider.h"
 #include "athena/virtual_keyboard/public/virtual_keyboard_bindings.h"
 #include "athena/virtual_keyboard/public/virtual_keyboard_manager.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "content/public/app/content_main.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/base/resource/resource_bundle.h"
+#include "ui/keyboard/keyboard_controller.h"
+#include "ui/keyboard/keyboard_controller_observer.h"
 #include "ui/wm/core/visibility_controller.h"
 
 namespace {
 
 // We want to load the sample calculator app by default, for a while. Expecting
 // to run athena_main at src/
 const char kDefaultAppPath[] =
     "chrome/common/extensions/docs/examples/apps/calculator/app";
 }  // namespace
 
+// This class observes the change of the virtual keyboard and distribute the
+// change to appropriate modules of athena.
+// TODO(oshima): move the VK bounds logic to screen manager.
+class VirtualKeyboardObserver : public keyboard::KeyboardControllerObserver {
+ public:
+  VirtualKeyboardObserver() {
+    keyboard::KeyboardController::GetInstance()->AddObserver(this);
+  }
+
+  virtual ~VirtualKeyboardObserver() {
+    keyboard::KeyboardController::GetInstance()->RemoveObserver(this);
+  }
+
+ private:
+  virtual void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) OVERRIDE {
+    athena::HomeCard::Get()->UpdateVirtualKeyboardBounds(new_bounds);
+  }
+
+  DISALLOW_COPY_AND_ASSIGN(VirtualKeyboardObserver);
+};
+
 class AthenaBrowserMainDelegate : public apps::ShellBrowserMainDelegate {
  public:
   AthenaBrowserMainDelegate() {}
   virtual ~AthenaBrowserMainDelegate() {}
 
   // apps::ShellBrowserMainDelegate:
   virtual void Start(content::BrowserContext* context) OVERRIDE {
     base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
     base::FilePath app_dir = base::FilePath::FromUTF8Unsafe(
         command_line->HasSwitch(apps::switches::kAppShellAppPath) ?
         command_line->GetSwitchValueNative(apps::switches::kAppShellAppPath) :
         kDefaultAppPath);
 
     base::FilePath app_absolute_dir = base::MakeAbsoluteFilePath(app_dir);
     if (base::DirectoryExists(app_absolute_dir)) {
       extensions::ShellExtensionSystem* extension_system =
           static_cast<extensions::ShellExtensionSystem*>(
               extensions::ExtensionSystem::Get(context));
       extension_system->LoadApp(app_absolute_dir);
     }
 
     athena::StartAthena(
         apps::ShellDesktopController::instance()->host()->window(),
         new athena::ContentActivityFactory(),
         new athena::ContentAppModelBuilder(context));
     athena::HomeCard::Get()->RegisterSearchProvider(
         new athena::UrlSearchProvider(context));
     athena::VirtualKeyboardManager::Create(context);
+    keyboard_observer_.reset(new VirtualKeyboardObserver());
 
     CreateTestPages(context);
     CreateDebugWindow();
   }
 
-  virtual void Shutdown() OVERRIDE { athena::ShutdownAthena(); }
+  virtual void Shutdown() OVERRIDE {
+    keyboard_observer_.reset();
+    athena::ShutdownAthena();
+  }
 
   virtual apps::ShellDesktopController* CreateDesktopController() OVERRIDE {
     // TODO(mukai): create Athena's own ShellDesktopController subclass so that
     // it can initialize its own window manager logic.
     apps::ShellDesktopController* desktop = new apps::ShellDesktopController();
     desktop->SetAppWindowController(new athena::AthenaAppWindowController());
     return desktop;
   }
 
  private:
+  scoped_ptr<VirtualKeyboardObserver> keyboard_observer_;
+
   DISALLOW_COPY_AND_ASSIGN(AthenaBrowserMainDelegate);
 };
 
 class AthenaRendererMainDelegate : public apps::ShellRendererMainDelegate {
  public:
   AthenaRendererMainDelegate() {}
   virtual ~AthenaRendererMainDelegate() {}
 
  private:
   // apps::ShellRendererMainDelegate:
@@ skipping 37 matching lines @@
 
 int main(int argc, const char** argv) {
   AthenaMainDelegate delegate;
   content::ContentMainParams params(&delegate);
 
   params.argc = argc;
   params.argv = argv;
 
   return content::ContentMain(params);
 }