Implement chrome.brailleDisplayPrivate API

chrome/browser/extensions/api/braille_private/braille_private_api.h

+// Copyright (c) 2013 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 CHROME_BROWSER_EXTENSIONS_API_BRAILLE_PRIVATE_BRAILLE_PRIVATE_API_H_
+#define CHROME_BROWSER_EXTENSIONS_API_BRAILLE_PRIVATE_BRAILLE_PRIVATE_API_H_
+
+#include "chrome/browser/extensions/api/api_function.h"
+#include "chrome/browser/extensions/api/braille_private/braille_controller.h"
+#include "chrome/browser/extensions/api/profile_keyed_api_factory.h"
+#include "chrome/common/extensions/api/braille_private.h"
+
+namespace extensions {
+
+class BraillePrivateAPI : public ProfileKeyedAPI,
+                          api::braille_private::BrailleController::Observer {
+ public:
+  explicit BraillePrivateAPI(Profile* profile);
+  virtual ~BraillePrivateAPI();
+
+  // ProfileKeyedService implementation.
+  virtual void Shutdown() OVERRIDE;
+
+  // ProfileKeyedAPI implementation.
+  static ProfileKeyedAPIFactory<BraillePrivateAPI>* GetFactoryInstance();
+
+  // BrailleController::Observer implementation.
+  virtual void OnKeyEvent(scoped_ptr<base::DictionaryValue> event);
+
+
+ private:
+  friend class ProfileKeyedAPIFactory<BraillePrivateAPI>;
+
+  Profile* profile_;
+
+  // ProfileKeyedAPI implementation.
+  static const char* service_name() {
+    return "BraillePrivateAPI";
+  }
+  static const bool kServiceIsNULLWhileTesting = true;
+
+};
+
+namespace api {
+class BraillePrivateGetDisplayStateFunction : public AsyncApiFunction {
+  DECLARE_EXTENSION_FUNCTION("braillePrivate.getDisplayState",
+                             BRAILLEPRIVATE_WRITETEXT)
+ protected:
+  virtual bool Prepare() OVERRIDE;
+  virtual void Work() OVERRIDE;
+  virtual bool Respond() OVERRIDE;
+};
+
+class BraillePrivateWriteTextFunction : public AsyncApiFunction {
+  DECLARE_EXTENSION_FUNCTION("braillePrivate.writeText",
+                             BRAILLEPRIVATE_WRITETEXT)
+ protected:
+  virtual bool Prepare() OVERRIDE;
+  virtual void Work() OVERRIDE;
+  virtual bool Respond() OVERRIDE;
+ private:
+  scoped_ptr<braille_private::WriteText::Params> params_;
+};
+
+class BraillePrivateWriteDotsFunction : public AsyncApiFunction {
+  DECLARE_EXTENSION_FUNCTION("braillePrivate.writeDots",
+                             BRAILLEPRIVATE_WRITEDOTS)
+ protected:
+  virtual bool Prepare() OVERRIDE;
+  virtual void Work() OVERRIDE;
+  virtual bool Respond() OVERRIDE;
+};
+}  // namespace api
+}  // namespace extensions
+#endif  // CHROME_BROWSER_EXTENSIONS_API_BRAILLE_PRIVATE_BRAILLE_PRIVATE_API_H_