chrome/browser/extensions/extension_commands_global_registry.h

   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_BROWSER_EXTENSIONS_EXTENSION_COMMANDS_GLOBAL_REGISTRY_H_
   6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_COMMANDS_GLOBAL_REGISTRY_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/compiler_specific.h"
  12 #include "chrome/browser/extensions/extension_keybinding_registry.h"
  13 #include "chrome/browser/extensions/global_shortcut_listener.h"
  14 #include "extensions/browser/browser_context_keyed_api_factory.h"
  15 #include "ui/base/accelerators/accelerator.h"
  16
  17 namespace content {
  18 class BrowserContext;
  19 }
  20
  21 namespace extensions {
  22 class Extension;
  23
  24 // ExtensionCommandsGlobalRegistry is a class that handles the cross-platform
  25 // implementation of the global shortcut registration for the Extension Commands
  26 // API).
  27 // Note: It handles regular extension commands (not browserAction and pageAction
  28 // popups, which are not bindable to global shortcuts). This class registers the
  29 // accelerators on behalf of the extensions and routes the commands to them via
  30 // the BrowserEventRouter.
  31 class ExtensionCommandsGlobalRegistry
  32     : public BrowserContextKeyedAPI,
  33       public ExtensionKeybindingRegistry,
  34       public GlobalShortcutListener::Observer {
  35  public:
  36   // BrowserContextKeyedAPI implementation.
  37   static BrowserContextKeyedAPIFactory<ExtensionCommandsGlobalRegistry>*
  38       GetFactoryInstance();
  39
  40   // Convenience method to get the ExtensionCommandsGlobalRegistry for a
  41   // profile.
  42   static ExtensionCommandsGlobalRegistry* Get(content::BrowserContext* context);
  43
  44   // Enables/Disables global shortcut handling in Chrome.
  45   static void SetShortcutHandlingSuspended(bool suspended);
  46
  47   explicit ExtensionCommandsGlobalRegistry(content::BrowserContext* context);
  48   virtual ~ExtensionCommandsGlobalRegistry();
  49
  50  private:
  51   friend class BrowserContextKeyedAPIFactory<ExtensionCommandsGlobalRegistry>;
  52
  53   // BrowserContextKeyedAPI implementation.
  54   static const char* service_name() {
  55     return "ExtensionCommandsGlobalRegistry";
  56   }
  57
  58   // Overridden from ExtensionKeybindingRegistry:
  59   virtual void AddExtensionKeybinding(
  60       const Extension* extension,
  61       const std::string& command_name) OVERRIDE;
  62   virtual void RemoveExtensionKeybindingImpl(
  63       const ui::Accelerator& accelerator,
  64       const std::string& command_name) OVERRIDE;
  65
  66   // Called by the GlobalShortcutListener object when a shortcut this class has
  67   // registered for has been pressed.
  68   virtual void OnKeyPressed(const ui::Accelerator& accelerator) OVERRIDE;
  69
  70   // Weak pointer to our browser context. Not owned by us.
  71   content::BrowserContext* browser_context_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(ExtensionCommandsGlobalRegistry);
  74 };
  75
  76 }  // namespace extensions
  77
  78 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_COMMANDS_GLOBAL_REGISTRY_H_