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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_LAYOUT_FACTORY_H_ |
| 6 #define ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_LAYOUT_FACTORY_H_ |
| 7 |
| 8 #include <memory> |
| 9 |
| 10 #include "ash/common/system/tray/three_view_layout.h" |
| 11 #include "base/macros.h" |
| 12 |
| 13 namespace views { |
| 14 class View; |
| 15 } // namespace views |
| 16 |
| 17 namespace ash { |
| 18 |
| 19 // Factory functions for system menu row layout managers. |
| 20 class TrayPopupLayoutFactory { |
| 21 public: |
| 22 // Sets the layout manager of |host| to the default layout manager used by |
| 23 // most system menu rows. The newly created layout manager is owned by the |
| 24 // |host| but is returned so child Views can be added. |
| 25 // |
| 26 // The returned layout manager consists of 3 regions: START, CENTER, and END. |
| 27 // Any child Views added to the START and END containers will be added |
| 28 // horizonatlly and any Views added to the CENTER container will be added |
| 29 // vertically. |
| 30 // |
| 31 // The START and END containers have a fixed width but can grow into the |
| 32 // CENTER container if space is required and available. |
| 33 // |
| 34 // The CENTER container has a flexible width. |
| 35 static ThreeViewLayout* InstallDefaultLayout(views::View* host); |
| 36 |
| 37 // Configures the different |container| Views with the default layout |
| 38 // managers. |
| 39 // |
| 40 // This can be used by clients who need to embed portions of the default |
| 41 // layout manager into a different container view, e.g. just the END layout |
| 42 // into a clickable View. |
| 43 static void ConfigureDefaultLayout(ThreeViewLayout* layout, |
| 44 ThreeViewLayout::Container container); |
| 45 |
| 46 private: |
| 47 TrayPopupLayoutFactory(); |
| 48 ~TrayPopupLayoutFactory(); |
| 49 |
| 50 DISALLOW_COPY_AND_ASSIGN(TrayPopupLayoutFactory); |
| 51 }; |
| 52 |
| 53 } // namespace ash |
| 54 |
| 55 #endif // ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_LAYOUT_FACTORY_H_ |
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