Index: ash/material_design/material_design_controller.h |
diff --git a/ash/material_design/material_design_controller.h b/ash/material_design/material_design_controller.h |
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+// 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_MATERIAL_DESIGN_MATERIAL_DESIGN_CONTROLLER_H_ |
+#define ASH_MATERIAL_DESIGN_MATERIAL_DESIGN_CONTROLLER_H_ |
+ |
+#include "ash/ash_export.h" |
+#include "base/macros.h" |
+ |
+namespace ash { |
+ |
+namespace test { |
+class MaterialDesignControllerTestAPI; |
+} // namespace test |
+ |
+// Central controller to handle material design modes. |
+class ASH_EXPORT MaterialDesignController { |
+ public: |
+ // Initializes |mode_|. Must be called before calling IsMaterial(). |
+ static void Initialize(); |
+ |
+ // Returns true if Material Design is enabled in Chrome OS system UI. |
+ // Maps to "ash-enable-md" and "ash-diable-md flags" pair of flags. |
+ // Returns false if both flags are specified in command line. |
+ static bool IsMaterial(); |
+ |
+ private: |
+ friend class test::MaterialDesignControllerTestAPI; |
+ |
+ // Tracks whether |mode_| has been initialized. This is necessary so tests can |
+ // reset the state back to a clean state during tear down. |
+ static bool is_mode_initialized_; |
+ |
+ // True if Material Design is enabled in Chrome OS system UI. |
+ static bool mode_; |
+ |
+ // Declarations only. Do not allow construction of an object. |
+ MaterialDesignController(); |
+ ~MaterialDesignController(); |
+ |
+ // Returns the per-platform default material design variant. |
+ static bool DefaultMode(); |
+ |
+ // Sets |mode_| to |mode| and updates |is_mode_initialized_| to true. Can be |
+ // used by tests to directly set the mode. |
+ static void SetMode(bool mode); |
+ |
+ // Resets the initialization state to uninitialized. To be used by tests to |
+ // allow calling Initialize() more than once. |
+ static void Uninitialize(); |
+ |
+ DISALLOW_COPY_AND_ASSIGN(MaterialDesignController); |
+}; |
+ |
+} // namespace ash |
+ |
+#endif // ASH_MATERIAL_DESIGN_MATERIAL_DESIGN_CONTROLLER_H_ |