platform_accelerator_gtk.cc revision 68043e1e95eeb07d5cae7aca370b26518b0867d6 
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#include "ui/base/accelerators/platform_accelerator_gtk.h"
6
7#include "ui/events/keycodes/keyboard_code_conversion_gtk.h"
8
9namespace ui {
10
11namespace {
12
13int GdkModifierToEventFlag(GdkModifierType gdk_modifier) {
14  int event_flags = 0;
15  if (gdk_modifier & GDK_SHIFT_MASK)
16    event_flags |= EF_SHIFT_DOWN;
17  if (gdk_modifier & GDK_CONTROL_MASK)
18    event_flags |= EF_CONTROL_DOWN;
19  if (gdk_modifier & GDK_MOD1_MASK)
20    event_flags |= EF_ALT_DOWN;
21  return event_flags;
22}
23
24GdkModifierType EventFlagToGdkModifier(int event_flag) {
25  int modifier = 0;
26  if (event_flag & EF_SHIFT_DOWN)
27    modifier |= GDK_SHIFT_MASK;
28  if (event_flag & EF_CONTROL_DOWN)
29    modifier |= GDK_CONTROL_MASK;
30  if (event_flag & EF_ALT_DOWN)
31    modifier |= GDK_MOD1_MASK;
32  return static_cast<GdkModifierType>(modifier);
33}
34
35}  // namespace
36
37PlatformAcceleratorGtk::PlatformAcceleratorGtk()
38    : gdk_key_code_(0),
39      gdk_modifier_(static_cast<GdkModifierType>(0)) {
40}
41
42PlatformAcceleratorGtk::PlatformAcceleratorGtk(guint gdk_key_code,
43                                               GdkModifierType gdk_modifier)
44    : gdk_key_code_(gdk_key_code),
45      gdk_modifier_(gdk_modifier) {
46}
47
48PlatformAcceleratorGtk::~PlatformAcceleratorGtk() {
49}
50
51scoped_ptr<PlatformAccelerator> PlatformAcceleratorGtk::CreateCopy() const {
52  scoped_ptr<PlatformAcceleratorGtk> copy(new PlatformAcceleratorGtk);
53  copy->gdk_key_code_ = gdk_key_code_;
54  copy->gdk_modifier_ = gdk_modifier_;
55  return scoped_ptr<PlatformAccelerator>(copy.release());
56}
57
58bool PlatformAcceleratorGtk::Equals(const PlatformAccelerator& rhs) const {
59  const PlatformAcceleratorGtk& rhs_gtk =
60      static_cast<const PlatformAcceleratorGtk&>(rhs);
61  return gdk_key_code_ == rhs_gtk.gdk_key_code_ &&
62         gdk_modifier_ == rhs_gtk.gdk_modifier_;
63}
64
65Accelerator AcceleratorForGdkKeyCodeAndModifier(guint gdk_key_code,
66                                                GdkModifierType gdk_modifier) {
67  ui::Accelerator accelerator(ui::WindowsKeyCodeForGdkKeyCode(gdk_key_code),
68                              ui::GdkModifierToEventFlag(gdk_modifier));
69  scoped_ptr<PlatformAccelerator> platform_accelerator(
70      new PlatformAcceleratorGtk(gdk_key_code, gdk_modifier));
71  accelerator.set_platform_accelerator(platform_accelerator.Pass());
72  return accelerator;
73}
74
75guint GetGdkKeyCodeForAccelerator(const Accelerator& accelerator) {
76  if (accelerator.platform_accelerator()) {
77    return static_cast<const PlatformAcceleratorGtk*>(
78        accelerator.platform_accelerator())->gdk_key_code();
79  }
80  // The second parameter is false because accelerator keys are expressed in
81  // terms of the non-shift-modified key.
82  return GdkKeyCodeForWindowsKeyCode(accelerator.key_code(), false);
83}
84
85GdkModifierType GetGdkModifierForAccelerator(const Accelerator& accelerator) {
86  if (accelerator.platform_accelerator()) {
87    return static_cast<const PlatformAcceleratorGtk*>(
88        accelerator.platform_accelerator())->gdk_modifier();
89  }
90  return EventFlagToGdkModifier(accelerator.modifiers());
91}
92
93}  // namespace ui
94