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Only show the mnemonic underline when pressing Alt

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...and show them in menus when navigating the menu with the keyboard.
This is similar to what other platforms do, and reduces visual clutter.
There is a setting to control this. Most of the work on this patch was
done by Thomas Wood. See bug 588554.
This commit is contained in:
Matthias Clasen 2009-12-20 03:04:52 -05:00 committed by Tristan Van Berkom
parent ce9c3df4c8
commit d68d78de81
11 changed files with 352 additions and 8 deletions
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107
gtk/gtklabel.c
View File

@ -60,6 +60,7 @@ typedef struct
gint width_chars;
gint max_width_chars;
gboolean full_size;
gboolean mnemonics_visible;
} GtkLabelPrivate;
/* Notes about the handling of links:
@ -265,6 +266,9 @@ static void gtk_label_buildable_custom_finished (GtkBuildable *builda
gpointer user_data);
static void connect_mnemonics_visible_notify (GtkLabel *label);
/* For selectable labels: */
static void gtk_label_move_cursor (GtkLabel *label,
GtkMovementStep step,
@ -1085,6 +1089,8 @@ gtk_label_init (GtkLabel *label)
label->mnemonic_widget = NULL;
label->mnemonic_window = NULL;
priv->mnemonics_visible = TRUE;
gtk_label_set_text (label, "");
}
@ -1533,7 +1539,9 @@ gtk_label_setup_mnemonic (GtkLabel *label,
}
if (label->mnemonic_keyval == GDK_VoidSymbol)
goto done;
goto done;
connect_mnemonics_visible_notify (GTK_LABEL (widget));
toplevel = gtk_widget_get_toplevel (widget);
if (GTK_WIDGET_TOPLEVEL (toplevel))
@ -1611,6 +1619,65 @@ label_shortcut_setting_changed (GtkSettings *settings)
g_list_free (list);
}
static void
mnemonics_visible_apply (GtkWidget *widget,
gboolean mnemonics_visible)
{
GtkLabel *label;
GtkLabelPrivate *priv;
label = GTK_LABEL (widget);
if (!label->use_underline)
return;
priv = GTK_LABEL_GET_PRIVATE (label);
mnemonics_visible = mnemonics_visible != FALSE;
if (priv->mnemonics_visible != mnemonics_visible)
{
priv->mnemonics_visible = mnemonics_visible;
gtk_label_recalculate (label);
}
}
static void
label_mnemonics_visible_traverse_container (GtkWidget *widget,
gpointer data)
{
gboolean mnemonics_visible = GPOINTER_TO_INT (data);
_gtk_label_mnemonics_visible_apply_recursively (widget, mnemonics_visible);
}
void
_gtk_label_mnemonics_visible_apply_recursively (GtkWidget *widget,
gboolean mnemonics_visible)
{
if (GTK_IS_LABEL (widget))
mnemonics_visible_apply (widget, mnemonics_visible);
else if (GTK_IS_CONTAINER (widget))
gtk_container_forall (GTK_CONTAINER (widget),
label_mnemonics_visible_traverse_container,
GINT_TO_POINTER (mnemonics_visible));
}
static void
label_mnemonics_visible_changed (GtkWindow *window,
GParamSpec *pspec,
gpointer data)
{
gboolean mnemonics_visible;
g_object_get (window, "mnemonics-visible", &mnemonics_visible, NULL);
gtk_container_forall (GTK_CONTAINER (window),
label_mnemonics_visible_traverse_container,
GINT_TO_POINTER (mnemonics_visible));
}
static void
gtk_label_screen_changed (GtkWidget *widget,
GdkScreen *old_screen)
@ -2467,6 +2534,7 @@ static void
gtk_label_set_pattern_internal (GtkLabel *label,
const gchar *pattern)
{
GtkLabelPrivate *priv = GTK_LABEL_GET_PRIVATE (label);
PangoAttrList *attrs;
gboolean enable_mnemonics;
@ -2479,7 +2547,8 @@ gtk_label_set_pattern_internal (GtkLabel *label,
"gtk-enable-mnemonics", &enable_mnemonics,
NULL);
if (enable_mnemonics && pattern)
if (enable_mnemonics && priv->mnemonics_visible && pattern &&
GTK_WIDGET_IS_SENSITIVE (label))
attrs = gtk_label_pattern_to_attrs (label, pattern);
else
attrs = NULL;
@ -4332,6 +4401,38 @@ gtk_label_button_release (GtkWidget *widget,
return TRUE;
}
static void
connect_mnemonics_visible_notify (GtkLabel *label)
{
GtkLabelPrivate *priv = GTK_LABEL_GET_PRIVATE (label);
GtkWidget *toplevel;
gboolean connected;
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (label));
if (!GTK_IS_WINDOW (toplevel))
return;
/* always set up this widgets initial value */
priv->mnemonics_visible =
gtk_window_get_mnemonics_visible (GTK_WINDOW (toplevel));
connected =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (toplevel),
"gtk-label-mnemonics-visible-connected"));
if (!connected)
{
g_signal_connect (toplevel,
"notify::mnemonics-visible",
G_CALLBACK (label_mnemonics_visible_changed),
label);
g_object_set_data (G_OBJECT (toplevel),
"gtk-label-mnemonics-visible-connected",
GINT_TO_POINTER (1));
}
}
static void
drag_begin_cb (GtkWidget *widget,
GdkDragContext *context,
@ -5887,7 +5988,7 @@ gtk_label_activate_current_link (GtkLabel *label)
if (window &&
window->default_widget != widget &&
!(widget == window->focus_widget &&
(!window->default_widget || !GTK_WIDGET_SENSITIVE (window->default_widget))))
(!window->default_widget || !GTK_WIDGET_IS_SENSITIVE (window->default_widget))))
gtk_window_activate_default (window);
}
}

5
gtk/gtklabel.h
View File

@ -200,6 +200,11 @@ guint gtk_label_parse_uline (GtkLabel *label,
#endif /* GTK_DISABLE_DEPRECATED */
/* private */
void _gtk_label_mnemonics_visible_apply_recursively (GtkWidget *widget,
gboolean mnemonics_visible);
G_END_DECLS
#endif /* __GTK_LABEL_H__ */

23
gtk/gtkmain.c
View File

@ -63,6 +63,8 @@
#include "gtktooltip.h"
#include "gtkdebug.h"
#include "gtkalias.h"
#include "gtkmenu.h"
#include "gdk/gdkkeysyms.h"
#include "gdk/gdkprivate.h" /* for GDK_WINDOW_DESTROYED */
@ -1613,6 +1615,27 @@ gtk_main_do_event (GdkEvent *event)
if (gtk_invoke_key_snoopers (grab_widget, event))
break;
}
/* catch alt press to enable auto-mnemonics */
if (event->key.keyval == GDK_Alt_L || event->key.keyval == GDK_Alt_R)
{
gboolean auto_mnemonics;
g_object_get (gtk_widget_get_settings (grab_widget),
"gtk-auto-mnemonics", &auto_mnemonics, NULL);
if (auto_mnemonics)
{
gboolean mnemonics_visible;
GtkWidget *window;
mnemonics_visible = (event->type == GDK_KEY_PRESS);
window = gtk_widget_get_toplevel (grab_widget);
if (GTK_IS_WINDOW (window))
gtk_window_set_mnemonics_visible (GTK_WINDOW (window), mnemonics_visible);
}
}
/* else fall through */
case GDK_MOTION_NOTIFY:
case GDK_BUTTON_RELEASE:

12
gtk/gtkmenu.c
View File

@ -1616,6 +1616,18 @@ gtk_menu_popup (GtkMenu *menu,
if (xgrab_shell == widget)
popup_grab_on_window (widget->window, activate_time, grab_keyboard); /* Should always succeed */
gtk_grab_add (GTK_WIDGET (menu));
if (parent_menu_shell)
{
gboolean keyboard_mode;
keyboard_mode = _gtk_menu_shell_get_keyboard_mode (GTK_MENU_SHELL (parent_menu_shell));
_gtk_menu_shell_set_keyboard_mode (menu_shell, keyboard_mode);
}
else if (menu_shell->button == 0) /* a keynav-activated context menu */
_gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
_gtk_menu_shell_update_mnemonics (menu_shell);
}
void

1
gtk/gtkmenubar.c
View File

@ -625,6 +625,7 @@ window_key_press_handler (GtkWidget *widget,
{
GtkMenuShell *menu_shell = GTK_MENU_SHELL (menubars->data);
_gtk_menu_shell_set_keyboard_mode (menu_shell, TRUE);
_gtk_menu_shell_activate (menu_shell);
gtk_menu_shell_select_first (menu_shell, FALSE);

3
gtk/gtkmenuitem.c
View File

@ -1374,6 +1374,9 @@ static gboolean
gtk_menu_item_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling)
{
if (GTK_IS_MENU_SHELL (widget->parent))
_gtk_menu_shell_set_keyboard_mode (GTK_MENU_SHELL (widget->parent), TRUE);
if (group_cycling &&
widget->parent &&
GTK_IS_MENU_SHELL (widget->parent) &&

86
gtk/gtkmenushell.c
View File

@ -30,6 +30,7 @@
#include "gdk/gdkkeysyms.h"
#include "gtkbindings.h"
#include "gtkkeyhash.h"
#include "gtklabel.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkmenu.h"
@ -773,6 +774,76 @@ gtk_menu_shell_button_release (GtkWidget *widget,
return TRUE;
}
void
_gtk_menu_shell_set_keyboard_mode (GtkMenuShell *menu_shell,
gboolean keyboard_mode)
{
menu_shell->keyboard_mode = keyboard_mode;
}
gboolean
_gtk_menu_shell_get_keyboard_mode (GtkMenuShell *menu_shell)
{
return menu_shell->keyboard_mode;
}
void
_gtk_menu_shell_update_mnemonics (GtkMenuShell *menu_shell)
{
GtkMenuShell *target;
gboolean auto_mnemonics;
gboolean found;
gboolean mnemonics_visible;
g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),
"gtk-auto-mnemonics", &auto_mnemonics, NULL);
if (!auto_mnemonics)
return;
target = menu_shell;
found = FALSE;
while (target)
{
/* The idea with keyboard mode is that once you start using
* the keyboard to navigate the menus, we show mnemonics
* until the menu navigation is over. To that end, we spread
* the keyboard mode upwards in the menu hierarchy here.
* Also see gtk_menu_popup, where we inherit it downwards.
*/
if (menu_shell->keyboard_mode)
target->keyboard_mode = TRUE;
/* While navigating menus, the first parent menu with an active
* item is the one where mnemonics are effective, as can be seen
* in gtk_menu_shell_key_press below.
* We also show mnemonics in context menus. The grab condition is
* necessary to ensure we remove underlines from menu bars when
* dismissing menus.
*/
mnemonics_visible = target->keyboard_mode &&
((target->active_menu_item && !found) ||
(target == menu_shell &&
!target->parent_menu_shell &&
gtk_widget_has_grab (target)));
/* While menus are up, only show underlines inside the menubar,
* not in the entire window.
*/
if (GTK_IS_MENU_BAR (target))
_gtk_label_mnemonics_visible_apply_recursively (GTK_WIDGET (target),
mnemonics_visible);
else
gtk_window_set_mnemonics_visible (GTK_WINDOW (gtk_widget_get_toplevel (target)),
mnemonics_visible);
if (target->active_menu_item)
found = TRUE;
target = GTK_MENU_SHELL (target->parent_menu_shell);
}
}
static gint
gtk_menu_shell_key_press (GtkWidget *widget,
GdkEventKey *event)
@ -780,9 +851,11 @@ gtk_menu_shell_key_press (GtkWidget *widget,
GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
gboolean enable_mnemonics;
menu_shell->keyboard_mode = TRUE;
if (!menu_shell->active_menu_item && menu_shell->parent_menu_shell)
return gtk_widget_event (menu_shell->parent_menu_shell, (GdkEvent *)event);
if (gtk_bindings_activate_event (GTK_OBJECT (widget), event))
return TRUE;
@ -992,11 +1065,15 @@ gtk_real_menu_shell_deactivate (GtkMenuShell *menu_shell)
if (menu_shell->have_xgrab)
{
GdkDisplay *display = gtk_widget_get_display (GTK_WIDGET (menu_shell));
menu_shell->have_xgrab = FALSE;
gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
}
menu_shell->keyboard_mode = FALSE;
_gtk_menu_shell_update_mnemonics (menu_shell);
}
}
@ -1079,6 +1156,8 @@ gtk_menu_shell_real_select_item (GtkMenuShell *menu_shell,
GTK_MENU_SHELL_GET_CLASS (menu_shell)->submenu_placement);
gtk_menu_item_select (GTK_MENU_ITEM (menu_shell->active_menu_item));
_gtk_menu_shell_update_mnemonics (menu_shell);
/* This allows the bizarre radio buttons-with-submenus-display-history
* behavior
*/
@ -1095,6 +1174,7 @@ gtk_menu_shell_deselect (GtkMenuShell *menu_shell)
{
gtk_menu_item_deselect (GTK_MENU_ITEM (menu_shell->active_menu_item));
menu_shell->active_menu_item = NULL;
_gtk_menu_shell_update_mnemonics (menu_shell);
}
}
@ -1340,6 +1420,7 @@ gtk_real_menu_shell_move_current (GtkMenuShell *menu_shell,
* menu.
*/
_gtk_menu_item_popdown_submenu (menu_shell->active_menu_item);
_gtk_menu_shell_update_mnemonics (menu_shell);
}
else if (parent_menu_shell)
{
@ -1347,6 +1428,7 @@ gtk_real_menu_shell_move_current (GtkMenuShell *menu_shell,
{
/* close menu when returning from submenu. */
_gtk_menu_item_popdown_submenu (GTK_MENU (menu_shell)->parent_menu_item);
_gtk_menu_shell_update_mnemonics (parent_menu_shell);
break;
}

6
gtk/gtkmenushell.h
View File

@ -65,6 +65,7 @@ struct _GtkMenuShell
guint GSEAL (ignore_leave) : 1; /* unused */
guint GSEAL (menu_flag) : 1; /* unused */
guint GSEAL (ignore_enter) : 1;
guint GSEAL (keyboard_mode) : 1;
};
struct _GtkMenuShellClass
@ -130,6 +131,11 @@ gboolean gtk_menu_shell_get_take_focus (GtkMenuShell *menu_shell);
void gtk_menu_shell_set_take_focus (GtkMenuShell *menu_shell,
gboolean take_focus);
void _gtk_menu_shell_update_mnemonics (GtkMenuShell *menu_shell);
void _gtk_menu_shell_set_keyboard_mode (GtkMenuShell *menu_shell,
gboolean keyboard_mode);
gboolean _gtk_menu_shell_get_keyboard_mode (GtkMenuShell *menu_shell);
G_END_DECLS
#endif /* __GTK_MENU_SHELL_H__ */

20
gtk/gtksettings.c
View File

@ -124,7 +124,8 @@ enum {
PROP_ENABLE_EVENT_SOUNDS,
PROP_ENABLE_TOOLTIPS,
PROP_TOOLBAR_STYLE,
PROP_TOOLBAR_ICON_SIZE
PROP_TOOLBAR_ICON_SIZE,
PROP_AUTO_MNEMONICS
};
@ -999,6 +1000,23 @@ gtk_settings_class_init (GtkSettingsClass *class)
GTK_PARAM_READWRITE),
gtk_rc_property_parse_enum);
g_assert (result == PROP_TOOLBAR_ICON_SIZE);
/**
* GtkSettings:gtk-auto-mnemonics:
*
* Whether mnemonics should be automatically shown and hidden when the user
* presses the mnemonic activator.
*
* Since: 2.20
*/
result = settings_install_property_parser (class,
g_param_spec_boolean ("gtk-auto-mnemonics",
P_("Auto Mnemonics"),
P_("Whether mnemonics should be automatically shown and hidden when the user presses the mnemonic activator."),
FALSE,
GTK_PARAM_READWRITE),
NULL);
g_assert (result == PROP_AUTO_MNEMONICS);
}
static void

94
gtk/gtkwindow.c
View File

@ -101,6 +101,8 @@ enum {
/* Writeonly properties */
PROP_STARTUP_ID,
PROP_MNEMONICS_VISIBLE,
LAST_ARG
};
@ -185,6 +187,9 @@ struct _GtkWindowPrivate
guint opacity_set : 1;
guint builder_visible : 1;
guint mnemonics_visible : 1;
guint mnemonics_visible_set : 1;
GdkWindowTypeHint type_hint;
gdouble opacity;
@ -230,6 +235,8 @@ static gint gtk_window_client_event (GtkWidget *widget,
static void gtk_window_check_resize (GtkContainer *container);
static gint gtk_window_focus (GtkWidget *widget,
GtkDirectionType direction);
static void gtk_window_grab_notify (GtkWidget *widget,
gboolean was_grabbed);
static void gtk_window_real_set_focus (GtkWindow *window,
GtkWidget *focus);
@ -456,9 +463,9 @@ gtk_window_class_init (GtkWindowClass *klass)
widget_class->focus_out_event = gtk_window_focus_out_event;
widget_class->client_event = gtk_window_client_event;
widget_class->focus = gtk_window_focus;
widget_class->expose_event = gtk_window_expose;
widget_class->grab_notify = gtk_window_grab_notify;
container_class->check_resize = gtk_window_check_resize;
klass->set_focus = gtk_window_real_set_focus;
@ -591,6 +598,13 @@ gtk_window_class_init (GtkWindowClass *klass)
P_("Icon for this window"),
GDK_TYPE_PIXBUF,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_MNEMONICS_VISIBLE,
g_param_spec_boolean ("mnemonics-visible",
P_("Mnemonics Visible"),
P_("Whether mnemonics are currently visible in this window"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkWindow:icon-name:
@ -929,6 +943,7 @@ gtk_window_init (GtkWindow *window)
priv->type_hint = GDK_WINDOW_TYPE_HINT_NORMAL;
priv->opacity = 1.0;
priv->startup_id = NULL;
priv->mnemonics_visible = TRUE;
colormap = _gtk_widget_peek_colormap ();
if (colormap)
@ -951,9 +966,12 @@ gtk_window_set_property (GObject *object,
GParamSpec *pspec)
{
GtkWindow *window;
GtkWindowPrivate *priv;
window = GTK_WINDOW (object);
priv = GTK_WINDOW_GET_PRIVATE (window);
switch (prop_id)
{
case PROP_TYPE:
@ -1050,6 +1068,9 @@ gtk_window_set_property (GObject *object,
case PROP_OPACITY:
gtk_window_set_opacity (window, g_value_get_double (value));
break;
case PROP_MNEMONICS_VISIBLE:
gtk_window_set_mnemonics_visible (window, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -1165,6 +1186,9 @@ gtk_window_get_property (GObject *object,
case PROP_OPACITY:
g_value_set_double (value, gtk_window_get_opacity (window));
break;
case PROP_MNEMONICS_VISIBLE:
g_value_set_boolean (value, priv->mnemonics_visible);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -4537,6 +4561,7 @@ gtk_window_map (GtkWidget *widget)
GtkWindow *window = GTK_WINDOW (widget);
GtkWindowPrivate *priv = GTK_WINDOW_GET_PRIVATE (window);
GdkWindow *toplevel;
gboolean auto_mnemonics;
GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
@ -4612,6 +4637,14 @@ gtk_window_map (GtkWidget *widget)
gdk_notify_startup_complete ();
}
}
/* if auto-mnemonics is enabled and mnemonics visible is not already set
* (as in the case of popup menus), then hide mnemonics initially
*/
g_object_get (gtk_widget_get_settings (widget), "gtk-auto-mnemonics",
&auto_mnemonics, NULL);
if (auto_mnemonics && !priv->mnemonics_visible_set)
gtk_window_set_mnemonics_visible (window, FALSE);
}
static gboolean
@ -5288,10 +5321,18 @@ gtk_window_focus_out_event (GtkWidget *widget,
GdkEventFocus *event)
{
GtkWindow *window = GTK_WINDOW (widget);
gboolean auto_mnemonics;
_gtk_window_set_has_toplevel_focus (window, FALSE);
_gtk_window_set_is_active (window, FALSE);
/* set the mnemonic-visible property to false */
g_object_get (gtk_widget_get_settings (widget),
"gtk-auto-mnemonics", &auto_mnemonics, NULL);
if (auto_mnemonics)
gtk_window_set_mnemonics_visible (window, FALSE);
return FALSE;
}
@ -8432,6 +8473,55 @@ gtk_window_get_window_type (GtkWindow *window)
return window->type;
}
gboolean
gtk_window_get_mnemonics_visible (GtkWindow *window)
{
GtkWindowPrivate *priv;
g_return_val_if_fail (GTK_IS_WINDOW (window), FALSE);
priv = GTK_WINDOW_GET_PRIVATE (window);
return priv->mnemonics_visible;
}
void
gtk_window_set_mnemonics_visible (GtkWindow *window,
gboolean setting)
{
GtkWindowPrivate *priv;
g_return_if_fail (GTK_IS_WINDOW (window));
priv = GTK_WINDOW_GET_PRIVATE (window);
setting = setting != FALSE;
if (priv->mnemonics_visible != setting)
{
priv->mnemonics_visible = setting;
g_object_notify (G_OBJECT (window), "mnemonics-visible");
}
priv->mnemonics_visible_set = TRUE;
}
static void
gtk_window_grab_notify (GtkWidget *widget,
gboolean was_grabbed)
{
gboolean auto_mnemonics;
if (was_grabbed)
return;
g_object_get (gtk_widget_get_settings (widget), "gtk-auto-mnemonics",
&auto_mnemonics, NULL);
if (auto_mnemonics)
gtk_window_set_mnemonics_visible (GTK_WINDOW (widget), FALSE);
}
#if defined (G_OS_WIN32) && !defined (_WIN64)
#undef gtk_window_set_icon_from_file

3
gtk/gtkwindow.h
View File

@ -230,6 +230,9 @@ gboolean gtk_window_get_focus_on_map (GtkWindow *window);
void gtk_window_set_destroy_with_parent (GtkWindow *window,
gboolean setting);
gboolean gtk_window_get_destroy_with_parent (GtkWindow *window);
void gtk_window_set_mnemonics_visible (GtkWindow *window,
gboolean setting);
gboolean gtk_window_get_mnemonics_visible (GtkWindow *window);
void gtk_window_set_resizable (GtkWindow *window,
gboolean resizable);