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Unified Diff: chrome/browser/chromeos/ui/screensaver_extension_dialog.cc

Issue 9455038: Screensaver at login screen. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Review changes. Created 8 years, 10 months ago
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Index: chrome/browser/chromeos/ui/screensaver_extension_dialog.cc
diff --git a/chrome/browser/chromeos/ui/screensaver_extension_dialog.cc b/chrome/browser/chromeos/ui/screensaver_extension_dialog.cc
new file mode 100644
index 0000000000000000000000000000000000000000..117d6747edd5ace6486761fe111ee8fa73fc2b42
--- /dev/null
+++ b/chrome/browser/chromeos/ui/screensaver_extension_dialog.cc
@@ -0,0 +1,151 @@
+// 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) {
sky 2012/02/27 15:52:43 nit: when you wrap, each param on its own line.
rkc 2012/02/27 22:24:43 Done.
+}
+
+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;
sky 2012/02/27 15:52:43 Don't use single line ifs.
rkc 2012/02/27 22:24:43 Done.
+
+ 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_) {
sky 2012/02/27 15:52:43 Is it possible for close to be invoked while you'r
rkc 2012/02/27 22:24:43 Yep, but in that case extension_dialog will be nul
+ 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) {
+ MessageLoop::current()->PostTask(FROM_HERE,
sky 2012/02/27 15:52:43 Add comment as to why you need to delay this.
rkc 2012/02/27 22:24:43 Done.
+ base::Bind(&ScreensaverExtensionDialog::ReloadAndShow,
+ base::Unretained(this)));
+ dialog->Close();
+}
+
+void ScreensaverExtensionDialog::ReloadAndShow() {
+ ProfileManager::GetDefaultProfile()->GetExtensionService()->ReloadExtension(
+ screensaver_extension_->id());
+
+ Show();
+}

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