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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 "base/basictypes.h"
#include "base/bind.h"
#include "base/strings/stringprintf.h"
#include "mojo/examples/window_manager/window_manager.mojom.h"
#include "mojo/public/cpp/application/application.h"
#include "mojo/services/navigation/navigation.mojom.h"
#include "mojo/services/public/cpp/view_manager/node.h"
#include "mojo/services/public/cpp/view_manager/node_observer.h"
#include "mojo/services/public/cpp/view_manager/view.h"
#include "mojo/services/public/cpp/view_manager/view_manager.h"
#include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
#include "mojo/services/public/cpp/view_manager/view_observer.h"
#include "ui/events/event_constants.h"
#include "url/gurl.h"
using mojo::view_manager::Node;
using mojo::view_manager::NodeObserver;
using mojo::view_manager::View;
using mojo::view_manager::ViewManager;
using mojo::view_manager::ViewManagerDelegate;
using mojo::view_manager::ViewObserver;
namespace mojo {
namespace examples {
namespace {
const char kEmbeddedAppURL[] = "mojo:mojo_embedded_app";
}
// An app that embeds another app.
class NestingApp : public Application,
public ViewManagerDelegate,
public ViewObserver {
public:
NestingApp() : nested_(NULL) {}
virtual ~NestingApp() {}
private:
class Navigator : public InterfaceImpl<navigation::Navigator> {
public:
explicit Navigator(NestingApp* app) : app_(app) {}
private:
virtual void Navigate(uint32 node_id,
navigation::NavigationDetailsPtr details) OVERRIDE {
GURL url(details->url.To<std::string>());
if (!url.is_valid()) {
LOG(ERROR) << "URL is invalid.";
return;
}
app_->color_ = url.path().substr(1);
app_->NavigateChild();
}
NestingApp* app_;
DISALLOW_COPY_AND_ASSIGN(Navigator);
};
// Overridden from Application:
virtual void Initialize() MOJO_OVERRIDE {
ViewManager::Create(this, this);
ConnectTo<IWindowManager>("mojo:mojo_window_manager", &window_manager_);
AddService<Navigator>(this);
}
// Overridden from ViewManagerDelegate:
virtual void OnRootAdded(ViewManager* view_manager, Node* root) OVERRIDE {
View* view = View::Create(view_manager);
root->SetActiveView(view);
view->SetColor(SK_ColorCYAN);
view->AddObserver(this);
nested_ = Node::Create(view_manager);
root->AddChild(nested_);
nested_->SetBounds(gfx::Rect(20, 20, 50, 50));
nested_->Embed(kEmbeddedAppURL);
if (!navigator_.get())
ConnectTo(kEmbeddedAppURL, &navigator_);
NavigateChild();
}
virtual void OnRootRemoved(ViewManager* view_manager, Node* root) OVERRIDE {
// TODO(beng): reap views & child nodes.
nested_ = NULL;
}
// Overridden from ViewObserver:
virtual void OnViewInputEvent(View* view, const EventPtr& event) OVERRIDE {
if (event->action == ui::ET_MOUSE_RELEASED)
window_manager_->CloseWindow(view->node()->id());
}
void NavigateChild() {
if (!color_.empty() && nested_) {
navigation::NavigationDetailsPtr details(
navigation::NavigationDetails::New());
details->url =
base::StringPrintf("%s/%s", kEmbeddedAppURL, color_.c_str());
navigator_->Navigate(nested_->id(), details.Pass());
}
}
std::string color_;
Node* nested_;
navigation::NavigatorPtr navigator_;
IWindowManagerPtr window_manager_;
DISALLOW_COPY_AND_ASSIGN(NestingApp);
};
} // namespace examples
// static
Application* Application::Create() {
return new examples::NestingApp;
}
} // namespace mojo
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