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// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef COBALT_BROWSER_SPLASH_SCREEN_H_
#define COBALT_BROWSER_SPLASH_SCREEN_H_
#include <string>
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "base/synchronization/waitable_event.h"
#include "cobalt/browser/lifecycle_observer.h"
#include "cobalt/browser/splash_screen_cache.h"
#include "cobalt/browser/web_module.h"
#include "googleurl/src/gurl.h"
namespace cobalt {
namespace browser {
// SplashScreen uses a WebModule to present a splash screen.
//
class SplashScreen : public LifecycleObserver {
public:
SplashScreen(base::ApplicationState initial_application_state,
const WebModule::OnRenderTreeProducedCallback&
render_tree_produced_callback,
network::NetworkModule* network_module,
const math::Size& window_dimensions,
render_tree::ResourceProvider* resource_provider,
float layout_refresh_rate,
const base::optional<GURL>& fallback_splash_screen_url,
const GURL& initial_main_web_module_url,
cobalt::browser::SplashScreenCache* splash_screen_cache,
const base::Callback<void(base::TimeDelta)>&
on_splash_screen_shutdown_complete);
~SplashScreen();
void SetSize(const math::Size& window_dimensions, float video_pixel_ratio) {
web_module_->SetSize(window_dimensions, video_pixel_ratio);
}
// LifecycleObserver implementation.
void Prestart() OVERRIDE { web_module_->Prestart(); }
void Start(render_tree::ResourceProvider* resource_provider) OVERRIDE {
web_module_->Start(resource_provider);
}
void Pause() OVERRIDE { web_module_->Pause(); }
void Unpause() OVERRIDE { web_module_->Unpause(); }
void Suspend() OVERRIDE { web_module_->Suspend(); }
void Resume(render_tree::ResourceProvider* resource_provider) OVERRIDE {
web_module_->Resume(resource_provider);
}
void ReduceMemory() { web_module_->ReduceMemory(); }
// This dispatches event beforeunload in the WebModule. If
// beforeunload has any handlers or listeners, Shutdown waits for
// window.close to be called or a maximum of kSplashShutdownSeconds
// before running |on_splash_screen_shutdown_complete_|. If beforeunload has
// no handlers, |on_splash_screen_shutdown_complete_| is run immediately.
void Shutdown();
// Returns whether Shutdown() has been called before or not.
bool ShutdownSignaled() const { return shutdown_signaled_; }
WebModule& web_module() { return *web_module_; }
private:
// Run when window.close() is called by the WebModule.
void OnWindowClosed();
void OnWindowClosedInternal();
WebModule::OnRenderTreeProducedCallback render_tree_produced_callback_;
scoped_ptr<WebModule> web_module_;
// The splash screen runs on this message loop.
MessageLoop* const self_message_loop_;
// This is called by Shutdown (via window.close) or after
// the time limit has been exceeded.
base::CancelableCallback<void(base::TimeDelta)>
on_splash_screen_shutdown_complete_;
// True if SplashScreen::Shutdown() has been called.
bool shutdown_signaled_;
};
} // namespace browser
} // namespace cobalt
#endif // COBALT_BROWSER_SPLASH_SCREEN_H_