Move Sad Tab implementation out of the TabContentsViews.
BUG=103258
TEST=no change in sad tab behavior
Review URL: http://codereview.chromium.org/8477042
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110086 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/ui/sad_tab_observer.cc b/chrome/browser/ui/sad_tab_observer.cc
new file mode 100644
index 0000000..51a788a
--- /dev/null
+++ b/chrome/browser/ui/sad_tab_observer.cc
@@ -0,0 +1,100 @@
+// Copyright (c) 2011 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/ui/sad_tab_observer.h"
+
+#include "chrome/browser/browser_shutdown.h"
+#include "content/browser/tab_contents/tab_contents.h"
+#include "content/browser/tab_contents/tab_contents_view.h"
+#include "content/public/browser/notification_source.h"
+#include "content/public/browser/notification_types.h"
+
+#if defined(OS_MACOSX)
+#include "chrome/browser/ui/cocoa/tab_contents/sad_tab_controller.h"
+#elif defined(TOOLKIT_VIEWS)
+#include "chrome/browser/ui/views/sad_tab_view.h"
+#include "chrome/browser/ui/views/tab_contents/tab_contents_view_views.h"
+#elif defined(TOOLKIT_GTK)
+#include "chrome/browser/ui/gtk/sad_tab_gtk.h"
+#endif
+
+SadTabObserver::SadTabObserver(TabContents* tab_contents)
+ : TabContentsObserver(tab_contents) {
+ registrar_.Add(this, content::NOTIFICATION_TAB_CONTENTS_CONNECTED,
+ content::Source<TabContents>(tab_contents));
+}
+
+SadTabObserver::~SadTabObserver() {
+}
+
+void SadTabObserver::RenderViewGone(base::TerminationStatus status) {
+ // Only show the sad tab if we're not in browser shutdown, so that TabContents
+ // objects that are not in a browser (e.g., HTML dialogs) and thus are
+ // visible do not flash a sad tab page.
+ if (browser_shutdown::GetShutdownType() != browser_shutdown::NOT_VALID)
+ return;
+
+ if (HasSadTab())
+ return;
+
+ gfx::NativeView view = AcquireSadTab(status);
+ tab_contents()->view()->InstallOverlayView(view);
+}
+
+void SadTabObserver::Observe(int type,
+ const content::NotificationSource& source,
+ const content::NotificationDetails& details) {
+ switch (type) {
+ case content::NOTIFICATION_TAB_CONTENTS_CONNECTED:
+ if (HasSadTab()) {
+ tab_contents()->view()->RemoveOverlayView();
+ ReleaseSadTab();
+ }
+ break;
+
+ default:
+ NOTREACHED() << "Got a notification we didn't register for.";
+ }
+}
+
+gfx::NativeView SadTabObserver::AcquireSadTab(base::TerminationStatus status) {
+#if defined(OS_MACOSX)
+ sad_tab_.reset(
+ sad_tab_controller_mac::CreateSadTabController(tab_contents()));
+ return sad_tab_controller_mac::GetViewOfSadTabController(sad_tab_.get());
+#elif defined(TOOLKIT_VIEWS)
+ SadTabView::Kind kind =
+ status == base::TERMINATION_STATUS_PROCESS_WAS_KILLED ?
+ SadTabView::KILLED : SadTabView::CRASHED;
+ views::Widget::InitParams sad_tab_params(
+ views::Widget::InitParams::TYPE_CONTROL);
+ // It is not possible to create a widget that has no parent, and later
+ // re-parent it. TODO(avi): This is a cheat. Can this be made cleaner?
+ sad_tab_params.parent_widget =
+ static_cast<TabContentsViewViews*>(tab_contents()->view());
+ sad_tab_params.ownership =
+ views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
+ sad_tab_.reset(new views::Widget);
+ sad_tab_->Init(sad_tab_params);
+ sad_tab_->SetContentsView(new SadTabView(tab_contents(), kind));
+ return sad_tab_->GetNativeView();
+#elif defined(TOOLKIT_GTK)
+ sad_tab_.reset(new SadTabGtk(
+ tab_contents(),
+ status == base::TERMINATION_STATUS_PROCESS_WAS_KILLED
+ ? SadTabGtk::KILLED
+ : SadTabGtk::CRASHED));
+ return sad_tab_->widget();
+#else
+#error Unknown platform
+#endif
+}
+
+void SadTabObserver::ReleaseSadTab() {
+ sad_tab_.reset();
+}
+
+bool SadTabObserver::HasSadTab() {
+ return sad_tab_.get() != NULL;
+}
