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      1 // Copyright (c) 2013 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 CHROME_COMMON_EXTENSIONS_API_COMMANDS_COMMANDS_HANDLER_H_
      6 #define CHROME_COMMON_EXTENSIONS_API_COMMANDS_COMMANDS_HANDLER_H_
      7 
      8 #include <string>
      9 
     10 #include "base/memory/scoped_ptr.h"
     11 #include "chrome/common/extensions/command.h"
     12 #include "extensions/common/extension.h"
     13 #include "extensions/common/manifest.h"
     14 #include "extensions/common/manifest_handler.h"
     15 
     16 namespace extensions {
     17 
     18 struct CommandsInfo : public Extension::ManifestData {
     19   CommandsInfo();
     20   virtual ~CommandsInfo();
     21 
     22   // Optional list of commands (keyboard shortcuts).
     23   // These commands are the commands which the extension wants to use, which are
     24   // not necessarily the ones it can use, as it might be inactive (see also
     25   // Get*Command[s] in CommandService).
     26   scoped_ptr<Command> browser_action_command;
     27   scoped_ptr<Command> page_action_command;
     28   CommandMap named_commands;
     29 
     30   static const Command* GetBrowserActionCommand(const Extension* extension);
     31   static const Command* GetPageActionCommand(const Extension* extension);
     32   static const CommandMap* GetNamedCommands(const Extension* extension);
     33 };
     34 
     35 // Parses the "commands" manifest key.
     36 class CommandsHandler : public ManifestHandler {
     37  public:
     38   CommandsHandler();
     39   virtual ~CommandsHandler();
     40 
     41   virtual bool Parse(Extension* extension, base::string16* error) OVERRIDE;
     42   virtual bool AlwaysParseForType(Manifest::Type type) const OVERRIDE;
     43 
     44  private:
     45   // If the extension defines a browser action, but no command for it, then
     46   // we synthesize a generic one, so the user can configure a shortcut for it.
     47   // No keyboard shortcut will be assigned to it, until the user selects one.
     48   void MaybeSetBrowserActionDefault(const Extension* extension,
     49                                     CommandsInfo* info);
     50 
     51   virtual const std::vector<std::string> Keys() const OVERRIDE;
     52 
     53   DISALLOW_COPY_AND_ASSIGN(CommandsHandler);
     54 };
     55 
     56 }  // namespace extensions
     57 
     58 #endif  // CHROME_COMMON_EXTENSIONS_API_COMMANDS_COMMANDS_HANDLER_H_
     59