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Improve the behaviour of automatic mnemonics

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With this change, key events continue to go to an open menu even
when the pointer is moved over a non-selectable menuitem. The mnemonics
are shown and hidden accordingly.
This commit is contained in:
Matthias Clasen 2010-03-14 16:11:48 -04:00
parent f3f44d6650
commit a085bb1f0b
2 changed files with 46 additions and 11 deletions
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5
gtk/gtkmenu.c
View File

@ -3262,7 +3262,10 @@ gtk_menu_motion_notify (GtkWidget *widget,
*/
if (!_gtk_menu_item_is_selectable (menu_item))
{
gtk_menu_shell_deselect (menu_shell);
/* We really want to deselect, but this gives the menushell code
* a chance to do some bookkeeping about the menuitem.
*/
gtk_menu_shell_select_item (menu_shell, menu_item);
return FALSE;
}

44
gtk/gtkmenushell.c
View File

@ -137,6 +137,10 @@ struct _GtkMenuShellPrivate
guint take_focus : 1;
guint activated_submenu : 1;
/* This flag is a crutch to keep mnemonics in the same menu
* if the user moves the mouse over an unselectable menuitem.
*/
guint in_unselectable_item : 1;
};
static void gtk_menu_shell_set_property (GObject *object,
@ -805,6 +809,7 @@ _gtk_menu_shell_update_mnemonics (GtkMenuShell *menu_shell)
found = FALSE;
while (target)
{
GtkMenuShellPrivate *priv = GTK_MENU_SHELL_GET_PRIVATE (target);
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (target));
/* The idea with keyboard mode is that once you start using
@ -824,7 +829,7 @@ _gtk_menu_shell_update_mnemonics (GtkMenuShell *menu_shell)
* dismissing menus.
*/
mnemonics_visible = target->keyboard_mode &&
((target->active_menu_item && !found) ||
(((target->active_menu_item || priv->in_unselectable_item) && !found) ||
(target == menu_shell &&
!target->parent_menu_shell &&
gtk_widget_has_grab (GTK_WIDGET (target))));
@ -841,7 +846,7 @@ _gtk_menu_shell_update_mnemonics (GtkMenuShell *menu_shell)
else
gtk_window_set_mnemonics_visible (GTK_WINDOW (toplevel), mnemonics_visible);
if (target->active_menu_item)
if (target->active_menu_item || priv->in_unselectable_item)
found = TRUE;
target = GTK_MENU_SHELL (target->parent_menu_shell);
@ -853,11 +858,12 @@ gtk_menu_shell_key_press (GtkWidget *widget,
GdkEventKey *event)
{
GtkMenuShell *menu_shell = GTK_MENU_SHELL (widget);
GtkMenuShellPrivate *priv = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
gboolean enable_mnemonics;
menu_shell->keyboard_mode = TRUE;
if (!menu_shell->active_menu_item && menu_shell->parent_menu_shell)
if (!(menu_shell->active_menu_item || priv->in_unselectable_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))
@ -890,11 +896,20 @@ gtk_menu_shell_enter_notify (GtkWidget *widget,
menu_item = gtk_get_event_widget ((GdkEvent*) event);
if (!menu_item ||
(GTK_IS_MENU_ITEM (menu_item) &&
!_gtk_menu_item_is_selectable (menu_item)))
if (!menu_item)
return TRUE;
if (GTK_IS_MENU_ITEM (menu_item) &&
!_gtk_menu_item_is_selectable (menu_item))
{
GtkMenuShellPrivate *priv;
priv = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
priv->in_unselectable_item = TRUE;
return TRUE;
}
if (menu_item->parent == widget &&
GTK_IS_MENU_ITEM (menu_item))
{
@ -966,7 +981,14 @@ gtk_menu_shell_leave_notify (GtkWidget *widget,
menu_item = GTK_MENU_ITEM (event_widget);
if (!_gtk_menu_item_is_selectable (event_widget))
{
GtkMenuShellPrivate *priv;
priv = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
priv->in_unselectable_item = TRUE;
return TRUE;
}
if ((menu_shell->active_menu_item == event_widget) &&
(menu_item->submenu == NULL))
@ -1149,7 +1171,14 @@ gtk_menu_shell_real_select_item (GtkMenuShell *menu_shell,
gtk_menu_shell_deselect (menu_shell);
if (!_gtk_menu_item_is_selectable (menu_item))
{
GtkMenuShellPrivate *priv = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
priv->in_unselectable_item = TRUE;
_gtk_menu_shell_update_mnemonics (menu_shell);
return;
}
menu_shell->active_menu_item = menu_item;
if (pack_dir == GTK_PACK_DIRECTION_TTB || pack_dir == GTK_PACK_DIRECTION_BTT)
@ -1396,10 +1425,13 @@ static void
gtk_real_menu_shell_move_current (GtkMenuShell *menu_shell,
GtkMenuDirectionType direction)
{
GtkMenuShellPrivate *priv = GTK_MENU_SHELL_GET_PRIVATE (menu_shell);
GtkMenuShell *parent_menu_shell = NULL;
gboolean had_selection;
gboolean touchscreen_mode;
priv->in_unselectable_item = FALSE;
had_selection = menu_shell->active_menu_item != NULL;
g_object_get (gtk_widget_get_settings (GTK_WIDGET (menu_shell)),