Athena: Adding basic resource management framework (un-/re-loading) of V2 applications

athena/content/app_activity_proxy.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/content/app_activity_proxy.h"
+
+#include "athena/content/app_activity_registry.h"
+#include "ui/views/view.h"
+#include "ui/views/widget/widget.h"
+
+namespace athena {
+
+AppActivityProxy::AppActivityProxy(ActivityViewModel* view_model,
+                                   AppActivityRegistry* creator) :
+    app_activity_registry_(creator),
+    title_(view_model->GetTitle()),
+    image_(view_model->GetOverviewModeImage()),
+    color_(view_model->GetRepresentativeColor()),
+    // TODO(skuhne): We probably need to do something better with the view
+    // (e.g. showing the image).
+    view_(new views::View()) {}
+
+AppActivityProxy::~AppActivityProxy() {
+  app_activity_registry_->ProxyDestroyed(this);
+}
+
+ActivityViewModel* AppActivityProxy::GetActivityViewModel() {
+  return this;
+}
+
+void AppActivityProxy::SetCurrentState(ActivityState state) {
+  // We ignore all calls which try to re-load the application at a lower than
+  // running invisible state.
+  if (state != ACTIVITY_VISIBLE && state != ACTIVITY_INVISIBLE)
+    return;
+  app_activity_registry_->RestartApplication(this);
+  // Note: This object is now destroyed.
+}
+
+Activity::ActivityState AppActivityProxy::GetCurrentState() {
+  return ACTIVITY_UNLOADED;
+}
+
+bool AppActivityProxy::IsVisible() {
+  return true;
+}
+
+Activity::ActivityMediaState AppActivityProxy::GetMediaState() {
+  // This proxy has never any media playing.
+  return ACTIVITY_MEDIA_STATE_NONE;
+}
+
+aura::Window* AppActivityProxy::GetWindow() {
+  return view_->GetWidget()->GetNativeWindow();
+}
+
+void AppActivityProxy::Init() {
+}
+
+SkColor AppActivityProxy::GetRepresentativeColor() const {
+  return color_;
+}
+
+base::string16 AppActivityProxy::GetTitle() const {
+  return title_;
+}
+
+bool AppActivityProxy::UsesFrame() const {
+  return true;
+}
+
+views::View* AppActivityProxy::GetContentsView() {
+  return view_;
+}
+
+void AppActivityProxy::CreateOverviewModeImage() {
+  // Nothing we can do here.
+}
+
+gfx::ImageSkia AppActivityProxy::GetOverviewModeImage() {
+  return image_;
+}
+
+}  // namespace athena