Index: ash/common/system/tray/tray_popup_layout_factory.h |
diff --git a/ash/common/system/tray/tray_popup_layout_factory.h b/ash/common/system/tray/tray_popup_layout_factory.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..5e5669eb93d48fe182ab829f34503c081505947d |
--- /dev/null |
+++ b/ash/common/system/tray/tray_popup_layout_factory.h |
@@ -0,0 +1,55 @@ |
+// Copyright 2016 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. |
+ |
+#ifndef ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_LAYOUT_FACTORY_H_ |
+#define ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_LAYOUT_FACTORY_H_ |
+ |
+#include <memory> |
+ |
+#include "ash/common/system/tray/three_view_layout.h" |
+#include "base/macros.h" |
+ |
+namespace views { |
+class View; |
+} // namespace views |
+ |
+namespace ash { |
+ |
+// Factory functions for system menu row layout managers. |
+class TrayPopupLayoutFactory { |
+ public: |
+ // Sets the layout manager of |host| to the default layout manager used by |
+ // most system menu rows. The newly created layout manager is owned by the |
+ // |host| but is returned so child Views can be added. |
+ // |
+ // The returned layout manager consists of 3 regions: START, CENTER, and END. |
+ // Any child Views added to the START and END containers will be added |
+ // horizonatlly and any Views added to the CENTER container will be added |
+ // vertically. |
+ // |
+ // The START and END containers have a fixed width but can grow into the |
+ // CENTER container if space is required and available. |
+ // |
+ // The CENTER container has a flexible width. |
+ static ThreeViewLayout* InstallDefaultLayout(views::View* host); |
+ |
+ // Configures the different |container| Views with the default layout |
+ // managers. |
+ // |
+ // This can be used by clients who need to embed portions of the default |
+ // layout manager into a different container view, e.g. just the END layout |
+ // into a clickable View. |
+ static void ConfigureDefaultLayout(ThreeViewLayout* layout, |
+ ThreeViewLayout::Container container); |
+ |
+ private: |
+ TrayPopupLayoutFactory(); |
+ ~TrayPopupLayoutFactory(); |
+ |
+ DISALLOW_COPY_AND_ASSIGN(TrayPopupLayoutFactory); |
+}; |
+ |
+} // namespace ash |
+ |
+#endif // ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_LAYOUT_FACTORY_H_ |