Move IME shortcut keys from X to Aura [part 1 of 3].

ui/base/accelerators/accelerator.h

 // Copyright (c) 2011 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.
 
 // This class describe a keyboard accelerator (or keyboard shortcut).
 // Keyboard accelerators are registered with the FocusManager.
 // It has a copy constructor and assignment operator so that it can be copied.
 // It also defines the < operator so that it can be used as a key in a std::map.
 //
 
 #ifndef UI_BASE_ACCELERATORS_ACCELERATOR_H_
 #define UI_BASE_ACCELERATORS_ACCELERATOR_H_
 #pragma once
 
 #include "base/string16.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/events.h"
 #include "ui/base/ui_export.h"
 
 namespace ui {
 
 // This is a cross-platform base class for accelerator keys used in menus. It is
 // meant to be subclassed for concrete toolkit implementations.
 class UI_EXPORT Accelerator {
  public:
-  Accelerator() : key_code_(ui::VKEY_UNKNOWN), modifiers_(0) {}
+  Accelerator()
+      : key_code_(ui::VKEY_UNKNOWN), type_(ui::ET_KEY_PRESSED), modifiers_(0) {}
 
   Accelerator(ui::KeyboardCode keycode, int modifiers)
       : key_code_(keycode),
+        type_(ui::ET_KEY_PRESSED),
         modifiers_(modifiers) {}
 
   Accelerator(const Accelerator& accelerator) {
     key_code_ = accelerator.key_code_;
+    type_ = accelerator.type_;
     modifiers_ = accelerator.modifiers_;
   }
 
   Accelerator(ui::KeyboardCode keycode,
               bool shift_pressed, bool ctrl_pressed, bool alt_pressed)
       : key_code_(keycode),
+        type_(ui::ET_KEY_PRESSED),
         modifiers_(0) {
     if (shift_pressed)
       modifiers_ |= ui::EF_SHIFT_DOWN;
     if (ctrl_pressed)
       modifiers_ |= ui::EF_CONTROL_DOWN;
     if (alt_pressed)
       modifiers_ |= ui::EF_ALT_DOWN;
   }
 
   virtual ~Accelerator() {}
 
   Accelerator& operator=(const Accelerator& accelerator) {
     if (this != &accelerator) {
       key_code_ = accelerator.key_code_;
+      type_ = accelerator.type_;
       modifiers_ = accelerator.modifiers_;
     }
     return *this;
   }
 
   // We define the < operator so that the KeyboardShortcut can be used as a key
   // in a std::map.
   bool operator <(const Accelerator& rhs) const {
     if (key_code_ != rhs.key_code_)
       return key_code_ < rhs.key_code_;
+    if (type_ != rhs.type_)
+      return type_ < rhs.type_;
     return modifiers_ < rhs.modifiers_;
   }
 
   bool operator ==(const Accelerator& rhs) const {
-    return (key_code_ == rhs.key_code_) && (modifiers_ == rhs.modifiers_);
+    return (key_code_ == rhs.key_code_) &&
+        (type_ == rhs.type_) && (modifiers_ == rhs.modifiers_);
   }
 
   bool operator !=(const Accelerator& rhs) const {
     return !(*this == rhs);
   }
 
   ui::KeyboardCode key_code() const { return key_code_; }
 
+  ui::EventType type() const { return type_; }
+
+  // Sets the event type if the accelerator should be processed on an event
+  // other than ui::ET_KEY_PRESSED.
+  void set_type(ui::EventType type) { type_ = type; }
+
   int modifiers() const { return modifiers_; }
 
   bool IsShiftDown() const {
     return (modifiers_ & ui::EF_SHIFT_DOWN) == ui::EF_SHIFT_DOWN;
   }
 
   bool IsCtrlDown() const {
     return (modifiers_ & ui::EF_CONTROL_DOWN) == ui::EF_CONTROL_DOWN;
   }
 
   bool IsAltDown() const {
     return (modifiers_ & ui::EF_ALT_DOWN) == ui::EF_ALT_DOWN;
   }
 
   // Returns a string with the localized shortcut if any.
   string16 GetShortcutText() const;
 
  protected:
   // The keycode (VK_...).
   ui::KeyboardCode key_code_;
 
+  // The event type (usually ui::ET_KEY_PRESSED).
+  ui::EventType type_;
+
   // The state of the Shift/Ctrl/Alt keys (platform-dependent).
   int modifiers_;
 };
 
 // An interface that classes that want to register for keyboard accelerators
 // should implement.
 class UI_EXPORT AcceleratorTarget {
  public:
   // Should return true if the accelerator was processed.
   virtual bool AcceleratorPressed(const Accelerator& accelerator) = 0;
@@ skipping 17 matching lines @@
   virtual bool GetAcceleratorForCommandId(int command_id,
                                           ui::Accelerator* accelerator) = 0;
 
  protected:
   virtual ~AcceleratorProvider() {}
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_ACCELERATORS_ACCELERATOR_H_