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Functions
void | gtk_menu_shell_append () |
void | gtk_menu_shell_prepend () |
void | gtk_menu_shell_insert () |
void | gtk_menu_shell_deactivate () |
void | gtk_menu_shell_select_item () |
void | gtk_menu_shell_select_first () |
void | gtk_menu_shell_deselect () |
void | gtk_menu_shell_activate_item () |
void | gtk_menu_shell_cancel () |
void | gtk_menu_shell_set_take_focus () |
gboolean | gtk_menu_shell_get_take_focus () |
Signals
void | activate-current | Action |
void | cancel | Action |
void | cycle-focus | Action |
void | deactivate | Run First |
void | insert | Run First |
void | move-current | Action |
gboolean | move-selected | Run Last |
void | selection-done | Run First |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GtkObject ╰── GtkWidget ╰── GtkContainer ╰── GtkMenuShell ├── GtkMenuBar ╰── GtkMenu
Description
A GtkMenuShell is the abstract base class used to derive the GtkMenu and GtkMenuBar subclasses.
A GtkMenuShell is a container of GtkMenuItem objects arranged in a list which can be navigated, selected, and activated by the user to perform application functions. A GtkMenuItem can have a submenu associated with it, allowing for nested hierarchical menus.
Functions
gtk_menu_shell_append ()
void gtk_menu_shell_append (GtkMenuShell *menu_shell
,GtkWidget *child
);
Adds a new GtkMenuItem to the end of the menu shell's item list.
gtk_menu_shell_prepend ()
void gtk_menu_shell_prepend (GtkMenuShell *menu_shell
,GtkWidget *child
);
Adds a new GtkMenuItem to the beginning of the menu shell's item list.
gtk_menu_shell_insert ()
void gtk_menu_shell_insert (GtkMenuShell *menu_shell
,GtkWidget *child
,gint position
);
Adds a new GtkMenuItem to the menu shell's item list at the position
indicated by position
.
Parameters
menu_shell |
a GtkMenuShell. |
|
child |
The GtkMenuItem to add. |
|
position |
The position in the item list where |
gtk_menu_shell_deactivate ()
void
gtk_menu_shell_deactivate (GtkMenuShell *menu_shell
);
Deactivates the menu shell. Typically this results in the menu shell being erased from the screen.
gtk_menu_shell_select_item ()
void gtk_menu_shell_select_item (GtkMenuShell *menu_shell
,GtkWidget *menu_item
);
Selects the menu item from the menu shell.
gtk_menu_shell_select_first ()
void gtk_menu_shell_select_first (GtkMenuShell *menu_shell
,gboolean search_sensitive
);
Select the first visible or selectable child of the menu shell; don't select tearoff items unless the only item is a tearoff item.
Parameters
Since 2.2
gtk_menu_shell_deselect ()
void
gtk_menu_shell_deselect (GtkMenuShell *menu_shell
);
Deselects the currently selected item from the menu shell, if any.
gtk_menu_shell_activate_item ()
void gtk_menu_shell_activate_item (GtkMenuShell *menu_shell
,GtkWidget *menu_item
,gboolean force_deactivate
);
Activates the menu item within the menu shell.
Parameters
menu_shell |
a GtkMenuShell. |
|
menu_item |
The GtkMenuItem to activate. |
|
force_deactivate |
If TRUE, force the deactivation of the menu shell after the menu item is activated. |
gtk_menu_shell_cancel ()
void
gtk_menu_shell_cancel (GtkMenuShell *menu_shell
);
Cancels the selection within the menu shell.
Since 2.4
gtk_menu_shell_set_take_focus ()
void gtk_menu_shell_set_take_focus (GtkMenuShell *menu_shell
,gboolean take_focus
);
If take_focus
is TRUE
(the default) the menu shell will take the keyboard
focus so that it will receive all keyboard events which is needed to enable
keyboard navigation in menus.
Setting take_focus
to FALSE
is useful only for special applications
like virtual keyboard implementations which should not take keyboard
focus.
The take_focus
state of a menu or menu bar is automatically propagated
to submenus whenever a submenu is popped up, so you don't have to worry
about recursively setting it for your entire menu hierarchy. Only when
programmatically picking a submenu and popping it up manually, the
take_focus
property of the submenu needs to be set explicitely.
Note that setting it to FALSE
has side-effects:
If the focus is in some other app, it keeps the focus and keynav in the menu doesn't work. Consequently, keynav on the menu will only work if the focus is on some toplevel owned by the onscreen keyboard.
To avoid confusing the user, menus with take_focus
set to FALSE
should not display mnemonics or accelerators, since it cannot be
guaranteed that they will work.
See also gdk_keyboard_grab()
Since 2.8
gtk_menu_shell_get_take_focus ()
gboolean
gtk_menu_shell_get_take_focus (GtkMenuShell *menu_shell
);
Returns TRUE
if the menu shell will take the keyboard focus on popup.
Since 2.8
Types and Values
struct GtkMenuShell
struct GtkMenuShell;
The GtkMenuShell struct contains the following fields. (These fields should be considered read-only. They should never be set by an application.)
GList *children; | The list of GtkMenuItem objects contained by this GtkMenuShell. |
Property Details
The “take-focus”
property
“take-focus” gboolean
A boolean that determines whether the menu and its submenus grab the
keyboard focus. See gtk_menu_shell_set_take_focus()
and
gtk_menu_shell_get_take_focus()
.
Flags: Read / Write
Default value: TRUE
Since 2.8
Signal Details
The “activate-current”
signal
void user_function (GtkMenuShell *menushell, gboolean arg1, gpointer user_data)
An action signal that activates the current menu item within the menu shell.
Parameters
menushell |
the object which received the signal. |
|
force_hide |
if TRUE, hide the menu after activating the menu item. |
|
user_data |
user data set when the signal handler was connected. |
Flags: Action
The “cancel”
signal
void user_function (GtkMenuShell *menushell, gpointer user_data)
An action signal which cancels the selection within the menu shell. Causes the GtkMenuShell::selection-done signal to be emitted.
Parameters
menushell |
the object which received the signal. |
|
user_data |
user data set when the signal handler was connected. |
Flags: Action
The “cycle-focus”
signal
void user_function (GtkMenuShell *menushell, GtkDirectionType arg1, gpointer user_data)
Parameters
menushell |
the object which received the signal. |
|
user_data |
user data set when the signal handler was connected. |
Flags: Action
The “deactivate”
signal
void user_function (GtkMenuShell *menushell, gpointer user_data)
This signal is emitted when a menu shell is deactivated.
Parameters
menushell |
the object which received the signal. |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First
The “insert”
signal
void user_function (GtkMenuShell *menu_shell, GtkWidget *child, gint position, gpointer user_data)
The ::insert signal is emitted when a new GtkMenuItem is added to a GtkMenuShell. A separate signal is used instead of GtkContainer::add because of the need for an additional position parameter.
The inverse of this signal is the GtkContainer::remove signal.
Parameters
menu_shell |
the object on which the signal is emitted |
|
child |
the GtkMenuItem that is being inserted |
|
position |
the position at which the insert occurs |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First
Since 2.24.15
The “move-current”
signal
void user_function (GtkMenuShell *menushell, GtkMenuDirectionType arg1, gpointer user_data)
An action signal which moves the current menu item in the direction
specified by direction
.
Parameters
menushell |
the object which received the signal. |
|
direction |
the direction to move. |
|
user_data |
user data set when the signal handler was connected. |
Flags: Action
The “move-selected”
signal
gboolean user_function (GtkMenuShell *menu_shell, gint distance, gpointer user_data)
The ::move-selected signal is emitted to move the selection to another item.
Parameters
menu_shell |
the object on which the signal is emitted |
|
distance |
+1 to move to the next item, -1 to move to the previous |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
Since 2.12
The “selection-done”
signal
void user_function (GtkMenuShell *menushell, gpointer user_data)
This signal is emitted when a selection has been completed within a menu shell.
Parameters
menushell |
the object which received the signal. |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First