Do not show the activity widget in ActivityManager::AddActivity

athena/activity/activity_manager_impl.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 "athena/activity/activity_manager_impl.h"
 
 #include <algorithm>
 
+#include "athena/activity/activity_widget_delegate.h"
 #include "athena/activity/public/activity.h"
 #include "athena/activity/public/activity_manager_observer.h"
-#include "athena/activity/public/activity_view_manager.h"
+#include "athena/activity/public/activity_view_model.h"
 #include "base/logging.h"
 #include "base/observer_list.h"
+#include "ui/views/widget/widget.h"
 
 namespace athena {
 
 namespace {
 
 ActivityManager* instance = NULL;
 
+views::Widget* CreateWidget(Activity* activity) {
+  ActivityViewModel* view_model = activity->GetActivityViewModel();
+  views::Widget* widget = view_model->CreateWidget();
+  if (widget)
+    return widget;
+  widget = new views::Widget;
+  views::Widget::InitParams params(views::Widget::InitParams::TYPE_WINDOW);
+  params.delegate = new ActivityWidgetDelegate(view_model);
+  widget->Init(params);
+  activity->GetActivityViewModel()->Init();
+  return widget;
+}
+
+views::Widget* GetWidget(Activity* activity) {
+  CHECK(activity);
+  CHECK(activity->GetWindow());
+  return views::Widget::GetWidgetForNativeWindow(activity->GetWindow());
+}
+
 }  // namespace
 
 ActivityManagerImpl::ActivityManagerImpl() {
   CHECK(!instance);
   instance = this;
 }
 
 ActivityManagerImpl::~ActivityManagerImpl() {
   while (!activities_.empty())
     Activity::Delete(activities_.front());
 
   CHECK_EQ(this, instance);
   instance = NULL;
 }
 
 void ActivityManagerImpl::AddActivity(Activity* activity) {
   CHECK(activities_.end() ==
         std::find(activities_.begin(), activities_.end(), activity));
   activities_.push_back(activity);
-  ActivityViewManager* manager = ActivityViewManager::Get();
-  manager->AddActivity(activity);
+  views::Widget* widget = CreateWidget(activity);
+  widget->AddObserver(this);
   FOR_EACH_OBSERVER(ActivityManagerObserver,
                     observers_,
                     OnActivityStarted(activity));
 }
 
 void ActivityManagerImpl::RemoveActivity(Activity* activity) {
   std::vector<Activity*>::iterator find =
       std::find(activities_.begin(), activities_.end(), activity);
-  FOR_EACH_OBSERVER(ActivityManagerObserver,
-                    observers_,
-                    OnActivityEnding(activity));
+  DCHECK(find != activities_.end());
   if (find != activities_.end()) {
+    FOR_EACH_OBSERVER(
+        ActivityManagerObserver, observers_, OnActivityEnding(activity));
     activities_.erase(find);
-    ActivityViewManager* manager = ActivityViewManager::Get();
-    manager->RemoveActivity(activity);
+    views::Widget* widget = GetWidget(activity);
+    widget->RemoveObserver(this);
+    widget->Close();
   }
 }
 
 void ActivityManagerImpl::UpdateActivity(Activity* activity) {
-  ActivityViewManager* manager = ActivityViewManager::Get();
-  manager->UpdateActivity(activity);
+  views::Widget* widget = GetWidget(activity);
+  widget->UpdateWindowIcon();
+  widget->UpdateWindowTitle();
 }
 
 void ActivityManagerImpl::AddObserver(ActivityManagerObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void ActivityManagerImpl::RemoveObserver(ActivityManagerObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
+void ActivityManagerImpl::OnWidgetDestroying(views::Widget* widget) {
+  struct Matcher {
+    Matcher(aura::Window* w) : window(w) {}
+
+    bool operator()(Activity* activity) {
+      return activity->GetWindow() == window;
+    }
+    aura::Window* window;
+  };
+  std::vector<Activity*>::iterator iter =
+      std::find_if(activities_.begin(),
+                   activities_.end(),
+                   Matcher(widget->GetNativeWindow()));
+  DCHECK(iter != activities_.end());
+  if (iter != activities_.end()) {
+    widget->RemoveObserver(this);
+    Activity::Delete(*iter);
+  }
+}
+
 // static
 ActivityManager* ActivityManager::Create() {
-  ActivityViewManager::Create();
-
   new ActivityManagerImpl();
   CHECK(instance);
   return instance;
 }
 
 ActivityManager* ActivityManager::Get() {
   return instance;
 }
 
 void ActivityManager::Shutdown() {
   CHECK(instance);
   delete instance;
-  ActivityViewManager::Shutdown();
 }
 
 
 }  // namespace athena