ui/views/focus/focus_manager_delegate.h

   1 // Copyright (c) 2012 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 UI_VIEWS_FOCUS_FOCUS_MANAGER_DELEGATE_H_
   6 #define UI_VIEWS_FOCUS_FOCUS_MANAGER_DELEGATE_H_
   7
   8 #include "ui/views/views_export.h"
   9
  10 namespace ui {
  11 class Accelerator;
  12 class AcceleratorTarget;
  13 }
  14
  15 namespace views {
  16
  17 // Delegate interface for views::FocusManager.
  18 class VIEWS_EXPORT FocusManagerDelegate {
  19  public:
  20   virtual ~FocusManagerDelegate() {}
  21
  22   // Activate the target associated with the specified accelerator.
  23   // First, AcceleratorPressed handler of the most recently registered target
  24   // is called, and if that handler processes the event (i.e. returns true),
  25   // this method immediately returns. If not, we do the same thing on the next
  26   // target, and so on.
  27   // Returns true if an accelerator was activated.
  28   virtual bool ProcessAccelerator(const ui::Accelerator& accelerator) = 0;
  29
  30   // Returns the AcceleratorTarget that should be activated for the specified
  31   // keyboard accelerator, or NULL if no view is registered for that keyboard
  32   // accelerator.
  33   virtual ui::AcceleratorTarget* GetCurrentTargetForAccelerator(
  34       const ui::Accelerator& accelerator) const = 0;
  35 };
  36
  37 }  // namespace views
  38
  39 #endif  // UI_VIEWS_FOCUS_FOCUS_MANAGER_DELEGATE_H_