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 <gdk/gdk.h>
8 #include <gdk/gdkx.h>
9 #include <gtk/gtk.h>
10
11 #include "base/command_line.h"
12 #include "base/environment.h"
13 #include "base/memory/scoped_ptr.h"
14 #include "ui/aura/window.h"
15 #include "ui/aura/window_tree_host.h"
16 #include "ui/base/accelerators/accelerator.h"
17 #include "ui/events/event_constants.h"
18 #include "ui/events/keycodes/keyboard_code_conversion_x.h"
19 #include "ui/gfx/size.h"
20
21 namespace {
22
23 const char kAuraTransientParent[] = "aura-transient-parent";
24
CommonInitFromCommandLine(const CommandLine & command_line,void (* init_func)(gint *,gchar ***))25 void CommonInitFromCommandLine(const CommandLine& command_line,
26 void (*init_func)(gint*, gchar***)) {
27 const std::vector<std::string>& args = command_line.argv();
28 int argc = args.size();
29 scoped_ptr<char *[]> argv(new char *[argc + 1]);
30 for (size_t i = 0; i < args.size(); ++i) {
31 // TODO(piman@google.com): can gtk_init modify argv? Just being safe
32 // here.
33 argv[i] = strdup(args[i].c_str());
34 }
35 argv[argc] = NULL;
36 char **argv_pointer = argv.get();
37
38 init_func(&argc, &argv_pointer);
39 for (size_t i = 0; i < args.size(); ++i) {
40 free(argv[i]);
41 }
42 }
43
44 } // namespace
45
46 namespace libgtk2ui {
47
GtkInitFromCommandLine(const CommandLine & command_line)48 void GtkInitFromCommandLine(const CommandLine& command_line) {
49 CommonInitFromCommandLine(command_line, gtk_init);
50 }
51
52 // TODO(erg): This method was copied out of shell_integration_linux.cc. Because
53 // of how this library is structured as a stand alone .so, we can't call code
54 // from browser and above.
GetDesktopName(base::Environment * env)55 std::string GetDesktopName(base::Environment* env) {
56 #if defined(GOOGLE_CHROME_BUILD)
57 return "google-chrome.desktop";
58 #else // CHROMIUM_BUILD
59 // Allow $CHROME_DESKTOP to override the built-in value, so that development
60 // versions can set themselves as the default without interfering with
61 // non-official, packaged versions using the built-in value.
62 std::string name;
63 if (env->GetVar("CHROME_DESKTOP", &name) && !name.empty())
64 return name;
65 return "chromium-browser.desktop";
66 #endif
67 }
68
SetAlwaysShowImage(GtkWidget * image_menu_item)69 void SetAlwaysShowImage(GtkWidget* image_menu_item) {
70 gtk_image_menu_item_set_always_show_image(
71 GTK_IMAGE_MENU_ITEM(image_menu_item), TRUE);
72 }
73
GetGdkKeyCodeForAccelerator(const ui::Accelerator & accelerator)74 guint GetGdkKeyCodeForAccelerator(const ui::Accelerator& accelerator) {
75 // The second parameter is false because accelerator keys are expressed in
76 // terms of the non-shift-modified key.
77 return XKeysymForWindowsKeyCode(accelerator.key_code(), false);
78 }
79
GetGdkModifierForAccelerator(const ui::Accelerator & accelerator)80 GdkModifierType GetGdkModifierForAccelerator(
81 const ui::Accelerator& accelerator) {
82 int event_flag = accelerator.modifiers();
83 int modifier = 0;
84 if (event_flag & ui::EF_SHIFT_DOWN)
85 modifier |= GDK_SHIFT_MASK;
86 if (event_flag & ui::EF_CONTROL_DOWN)
87 modifier |= GDK_CONTROL_MASK;
88 if (event_flag & ui::EF_ALT_DOWN)
89 modifier |= GDK_MOD1_MASK;
90 return static_cast<GdkModifierType>(modifier);
91 }
92
EventFlagsFromGdkState(guint state)93 int EventFlagsFromGdkState(guint state) {
94 int flags = ui::EF_NONE;
95 flags |= (state & GDK_LOCK_MASK) ? ui::EF_CAPS_LOCK_DOWN : ui::EF_NONE;
96 flags |= (state & GDK_CONTROL_MASK) ? ui::EF_CONTROL_DOWN : ui::EF_NONE;
97 flags |= (state & GDK_SHIFT_MASK) ? ui::EF_SHIFT_DOWN : ui::EF_NONE;
98 flags |= (state & GDK_MOD1_MASK) ? ui::EF_ALT_DOWN : ui::EF_NONE;
99 flags |= (state & GDK_BUTTON1_MASK) ? ui::EF_LEFT_MOUSE_BUTTON : ui::EF_NONE;
100 flags |=
101 (state & GDK_BUTTON2_MASK) ? ui::EF_MIDDLE_MOUSE_BUTTON : ui::EF_NONE;
102 flags |= (state & GDK_BUTTON3_MASK) ? ui::EF_RIGHT_MOUSE_BUTTON : ui::EF_NONE;
103 return flags;
104 }
105
SetGtkTransientForAura(GtkWidget * dialog,aura::Window * parent)106 void SetGtkTransientForAura(GtkWidget* dialog, aura::Window* parent) {
107 if (!parent || !parent->GetHost())
108 return;
109
110 gtk_widget_realize(dialog);
111 GdkWindow* gdk_window = gtk_widget_get_window(dialog);
112
113 // TODO(erg): Check to make sure we're using X11 if wayland or some other
114 // display server ever happens. Otherwise, this will crash.
115 XSetTransientForHint(GDK_WINDOW_XDISPLAY(gdk_window),
116 GDK_WINDOW_XID(gdk_window),
117 parent->GetHost()->GetAcceleratedWidget());
118
119 // We also set the |parent| as a property of |dialog|, so that we can unlink
120 // the two later.
121 g_object_set_data(G_OBJECT(dialog), kAuraTransientParent, parent);
122 }
123
GetAuraTransientParent(GtkWidget * dialog)124 aura::Window* GetAuraTransientParent(GtkWidget* dialog) {
125 return reinterpret_cast<aura::Window*>(
126 g_object_get_data(G_OBJECT(dialog), kAuraTransientParent));
127 }
128
ClearAuraTransientParent(GtkWidget * dialog)129 void ClearAuraTransientParent(GtkWidget* dialog) {
130 g_object_set_data(G_OBJECT(dialog), kAuraTransientParent, NULL);
131 }
132
GetGtkState(ui::NativeTheme::State state)133 GtkStateType GetGtkState(ui::NativeTheme::State state) {
134 switch (state) {
135 case ui::NativeTheme::kDisabled: return GTK_STATE_INSENSITIVE;
136 case ui::NativeTheme::kHovered: return GTK_STATE_PRELIGHT;
137 case ui::NativeTheme::kNormal: return GTK_STATE_NORMAL;
138 case ui::NativeTheme::kPressed: return GTK_STATE_ACTIVE;
139 case ui::NativeTheme::kNumStates: NOTREACHED();
140 }
141 return GTK_STATE_NORMAL;
142 }
143
144 } // namespace libgtk2ui
145