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// Copyright (c) 2012 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 "chrome/browser/chromeos/ui/screensaver_extension_dialog.h"
#include "base/bind.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/sessions/restore_tab_helper.h"
#include "chrome/browser/ui/views/extensions/extension_dialog.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/extensions/extension_file_util.h"
using content::BrowserThread;
namespace {
ScreensaverExtensionDialog* g_instance = NULL;
} // namespace
namespace browser {
void ShowScreensaverDialog() {
ScreensaverExtensionDialog::ShowScreensaverDialog();
}
void CloseScreensaverDialog() {
ScreensaverExtensionDialog::CloseScreensaverDialog();
}
} // namespace browser
// static
void ScreensaverExtensionDialog::ShowScreensaverDialog() {
if (!g_instance)
g_instance = new ScreensaverExtensionDialog();
g_instance->Show();
}
// static
void ScreensaverExtensionDialog::CloseScreensaverDialog() {
if (g_instance)
g_instance->Close();
}
ScreensaverExtensionDialog::ScreensaverExtensionDialog()
: screensaver_extension_(NULL),
loading_extension_(false) {
}
void ScreensaverExtensionDialog::LoadExtension() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
std::string error;
std::string extension_path = CommandLine::ForCurrentProcess()->
GetSwitchValueASCII(switches::kKioskModeScreensaverPath);
scoped_refptr<Extension> screensaver_extension =
extension_file_util::LoadExtension(
FilePath(extension_path),
Extension::COMPONENT,
Extension::NO_FLAGS,
&error);
if (!screensaver_extension) {
LOG(ERROR) << "Could not load screensaver extension from: " <<
extension_path;
return;
}
BrowserThread::PostTask(BrowserThread::UI,
FROM_HERE,
base::Bind(
&ScreensaverExtensionDialog::SetExtensionAndShow,
base::Unretained(this),
screensaver_extension));
}
void ScreensaverExtensionDialog::SetExtensionAndShow(
scoped_refptr<Extension> extension) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
screensaver_extension_ = extension;
loading_extension_ = false;
Show();
}
void ScreensaverExtensionDialog::Show() {
// Whenever we're loading the extension, Show() will
// be called after the load finishes, so return.
if (loading_extension_)
return;
if (!screensaver_extension_) {
loading_extension_ = true;
BrowserThread::PostTask(BrowserThread::FILE,
FROM_HERE,
base::Bind(
&ScreensaverExtensionDialog::LoadExtension,
base::Unretained(this)));
return;
}
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
Profile* default_profile = ProfileManager::GetDefaultProfile();
if (default_profile->GetExtensionService()->AddExtension(
screensaver_extension_)) {
extension_dialog_ = ExtensionDialog::ShowFullscreen(
screensaver_extension_->GetFullLaunchURL(),
default_profile,
string16(),
this);
} else {
LOG(ERROR) << "Couldn't add screensaver extension to profile.";
}
}
void ScreensaverExtensionDialog::Close() {
if (extension_dialog_) {
extension_dialog_->Close();
extension_dialog_ = NULL;
}
}
ScreensaverExtensionDialog::~ScreensaverExtensionDialog() {
if (extension_dialog_)
extension_dialog_->ObserverDestroyed();
}
void ScreensaverExtensionDialog::ExtensionDialogClosing(
ExtensionDialog* dialog) {
// Release our reference to the dialog to allow it to close.
extension_dialog_ = NULL;
}
void ScreensaverExtensionDialog::ExtensionTerminated(
ExtensionDialog* dialog) {
// This needs to be run 'slightly' delayed. When we get the extension
// terminated notification, the extension isn't fully unloaded yet. There
// is no good way to get around this. The correct solution will be to
// not need to reload the extension at all - but the current wiring in
// ExtensionViewsHost makes that not possible.
MessageLoop::current()->PostTask(FROM_HERE,
base::Bind(&ScreensaverExtensionDialog::ReloadAndShow,
base::Unretained(this)));
dialog->Close();
}
void ScreensaverExtensionDialog::ReloadAndShow() {
ProfileManager::GetDefaultProfile()->GetExtensionService()->ReloadExtension(
screensaver_extension_->id());
Show();
}
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