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 "chrome/browser/ui/libgtk2ui/gtk2_util.h"
6
7#include <gtk/gtk.h>
8
9#include "base/command_line.h"
10#include "base/environment.h"
11#include "base/memory/scoped_ptr.h"
12#include "ui/base/accelerators/accelerator.h"
13#include "ui/events/event_constants.h"
14#include "ui/events/keycodes/keyboard_code_conversion_x.h"
15#include "ui/gfx/size.h"
16
17namespace {
18
19void CommonInitFromCommandLine(const CommandLine& command_line,
20                               void (*init_func)(gint*, gchar***)) {
21  const std::vector<std::string>& args = command_line.argv();
22  int argc = args.size();
23  scoped_ptr<char *[]> argv(new char *[argc + 1]);
24  for (size_t i = 0; i < args.size(); ++i) {
25    // TODO(piman@google.com): can gtk_init modify argv? Just being safe
26    // here.
27    argv[i] = strdup(args[i].c_str());
28  }
29  argv[argc] = NULL;
30  char **argv_pointer = argv.get();
31
32  init_func(&argc, &argv_pointer);
33  for (size_t i = 0; i < args.size(); ++i) {
34    free(argv[i]);
35  }
36}
37
38}  // namespace
39
40namespace libgtk2ui {
41
42void GtkInitFromCommandLine(const CommandLine& command_line) {
43  CommonInitFromCommandLine(command_line, gtk_init);
44}
45
46// TODO(erg): This method was copied out of shell_integration_linux.cc. Because
47// of how this library is structured as a stand alone .so, we can't call code
48// from browser and above.
49std::string GetDesktopName(base::Environment* env) {
50#if defined(GOOGLE_CHROME_BUILD)
51  return "google-chrome.desktop";
52#else  // CHROMIUM_BUILD
53  // Allow $CHROME_DESKTOP to override the built-in value, so that development
54  // versions can set themselves as the default without interfering with
55  // non-official, packaged versions using the built-in value.
56  std::string name;
57  if (env->GetVar("CHROME_DESKTOP", &name) && !name.empty())
58    return name;
59  return "chromium-browser.desktop";
60#endif
61}
62
63void SetAlwaysShowImage(GtkWidget* image_menu_item) {
64  gtk_image_menu_item_set_always_show_image(
65      GTK_IMAGE_MENU_ITEM(image_menu_item), TRUE);
66}
67
68guint GetGdkKeyCodeForAccelerator(const ui::Accelerator& accelerator) {
69  // The second parameter is false because accelerator keys are expressed in
70  // terms of the non-shift-modified key.
71  return XKeysymForWindowsKeyCode(accelerator.key_code(), false);
72}
73
74GdkModifierType GetGdkModifierForAccelerator(
75    const ui::Accelerator& accelerator) {
76  int event_flag = accelerator.modifiers();
77  int modifier = 0;
78  if (event_flag & ui::EF_SHIFT_DOWN)
79    modifier |= GDK_SHIFT_MASK;
80  if (event_flag & ui::EF_CONTROL_DOWN)
81    modifier |= GDK_CONTROL_MASK;
82  if (event_flag & ui::EF_ALT_DOWN)
83    modifier |= GDK_MOD1_MASK;
84  return static_cast<GdkModifierType>(modifier);
85}
86
87int EventFlagsFromGdkState(guint state) {
88  int flags = ui::EF_NONE;
89  flags |= (state & GDK_LOCK_MASK) ? ui::EF_CAPS_LOCK_DOWN : ui::EF_NONE;
90  flags |= (state & GDK_CONTROL_MASK) ? ui::EF_CONTROL_DOWN : ui::EF_NONE;
91  flags |= (state & GDK_SHIFT_MASK) ? ui::EF_SHIFT_DOWN : ui::EF_NONE;
92  flags |= (state & GDK_MOD1_MASK) ? ui::EF_ALT_DOWN : ui::EF_NONE;
93  flags |= (state & GDK_BUTTON1_MASK) ? ui::EF_LEFT_MOUSE_BUTTON : ui::EF_NONE;
94  flags |=
95      (state & GDK_BUTTON2_MASK) ? ui::EF_MIDDLE_MOUSE_BUTTON : ui::EF_NONE;
96  flags |= (state & GDK_BUTTON3_MASK) ? ui::EF_RIGHT_MOUSE_BUTTON : ui::EF_NONE;
97  return flags;
98}
99
100}  // namespace libgtk2ui
101