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// 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/public/activity_view_manager.h"
#include <algorithm>
#include <map>
#include "athena/activity/activity_widget_delegate.h"
#include "athena/activity/public/activity.h"
#include "athena/activity/public/activity_manager.h"
#include "athena/activity/public/activity_view_model.h"
#include "athena/screen/public/screen_manager.h"
#include "ui/aura/window.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_observer.h"
namespace athena {
namespace {
typedef std::map<Activity*, views::Widget*> ActivityWidgetMap;
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);
return widget;
}
ActivityViewManager* instance = NULL;
class ActivityViewManagerImpl : public ActivityViewManager,
public views::WidgetObserver {
public:
ActivityViewManagerImpl() {
CHECK(!instance);
instance = this;
}
virtual ~ActivityViewManagerImpl() {
CHECK_EQ(this, instance);
instance = NULL;
}
// ActivityViewManager:
virtual void AddActivity(Activity* activity) OVERRIDE {
CHECK(activity_widgets_.end() == activity_widgets_.find(activity));
views::Widget* container = CreateWidget(activity);
container->AddObserver(this);
activity_widgets_[activity] = container;
container->Show();
container->Activate();
// Call the Activity model's initializer. It might re-order the activity
// against others, which has to be done before before registering it to the
// system.
activity->GetActivityViewModel()->Init();
}
virtual void RemoveActivity(Activity* activity) OVERRIDE {
ActivityWidgetMap::iterator find = activity_widgets_.find(activity);
if (find != activity_widgets_.end()) {
views::Widget* widget = find->second;
widget->RemoveObserver(this);
widget->Close();
activity_widgets_.erase(activity);
}
}
virtual void UpdateActivity(Activity* activity) OVERRIDE {
ActivityWidgetMap::iterator find = activity_widgets_.find(activity);
if (find != activity_widgets_.end()) {
find->second->UpdateWindowIcon();
find->second->UpdateWindowTitle();
}
}
// views::WidgetObserver:
virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE {
for (ActivityWidgetMap::iterator iter = activity_widgets_.begin();
iter != activity_widgets_.end();
++iter) {
if (iter->second == widget) {
Activity::Delete(iter->first);
break;
}
}
}
private:
ActivityWidgetMap activity_widgets_;
DISALLOW_COPY_AND_ASSIGN(ActivityViewManagerImpl);
};
} // namespace
// static
ActivityViewManager* ActivityViewManager::Create() {
new ActivityViewManagerImpl();
CHECK(instance);
return instance;
}
ActivityViewManager* ActivityViewManager::Get() {
return instance;
}
void ActivityViewManager::Shutdown() {
CHECK(instance);
delete instance;
}
} // namespace athena
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