GtkInfoBar

GtkInfoBar — Report important messages to the user

Properties

GtkMessageType message-type Read / Write / Construct
gboolean revealed Read / Write
gboolean show-close-button Read / Write / Construct

Signals

void close Action
void response Run Last

Types and Values

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GtkWidget
            ╰── GtkInfoBar

Implemented Interfaces

GtkInfoBar implements AtkImplementorIface, GtkBuildable and GtkConstraintTarget.

Includes

#include <gtk/gtk.h>

Description

GtkInfoBar is a widget that can be used to show messages to the user without showing a dialog. It is often temporarily shown at the top or bottom of a document. In contrast to GtkDialog, which has an action area at the bottom, GtkInfoBar has an action area at the side.

The API of GtkInfoBar is very similar to GtkDialog, allowing you to add buttons to the action area with gtk_info_bar_add_button() or gtk_info_bar_new_with_buttons(). The sensitivity of action widgets can be controlled with gtk_info_bar_set_response_sensitive().

To add widgets to the main content area of a GtkInfoBar, use gtk_info_bar_add_child().

Similar to GtkMessageDialog, the contents of a GtkInfoBar can by classified as error message, warning, informational message, etc, by using gtk_info_bar_set_message_type(). GTK+ may use the message type to determine how the message is displayed.

A simple example for using a GtkInfoBar:

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GtkWidget *message_label;
GtkWidget *widget;
GtkWidget *grid;
GtkInfoBar *bar;

// set up info bar
widget = gtk_info_bar_new ();
bar = GTK_INFO_BAR (widget);
grid = gtk_grid_new ();

message_label = gtk_label_new ("");
gtk_info_bar_add_child (bar, message_label);
gtk_info_bar_add_button (bar,
                         _("_OK"),
                         GTK_RESPONSE_OK);
g_signal_connect (bar,
                  "response",
                  G_CALLBACK (gtk_widget_hide),
                  NULL);
gtk_grid_attach (GTK_GRID (grid),
                 widget,
                 0, 2, 1, 1);

// ...

// show an error message
gtk_label_set_text (GTK_LABEL (message_label), "An error occurred!");
gtk_info_bar_set_message_type (bar, GTK_MESSAGE_ERROR);
gtk_widget_show (bar);

GtkInfoBar as GtkBuildable

The GtkInfoBar implementation of the GtkBuildable interface exposes the content area and action area as internal children with the names “content_area” and “action_area”.

GtkInfoBar supports a custom <action-widgets> element, which can contain multiple <action-widget> elements. The “response” attribute specifies a numeric response, and the content of the element is the id of widget (which should be a child of the dialogs action_area ).


CSS nodes

GtkInfoBar has a single CSS node with name infobar. The node may get one of the style classes .info, .warning, .error or .question, depending on the message type. If the info bar shows a close button, that button will have the .close style class applied.

Functions

gtk_info_bar_new ()

GtkWidget *
gtk_info_bar_new (void);

Creates a new GtkInfoBar object.

Returns

a new GtkInfoBar object


gtk_info_bar_new_with_buttons ()

GtkWidget *
gtk_info_bar_new_with_buttons (const gchar *first_button_text,
                               ...);

Creates a new GtkInfoBar with buttons. Button text/response ID pairs should be listed, with a NULL pointer ending the list. A response ID can be any positive number, or one of the values in the GtkResponseType enumeration. If the user clicks one of these dialog buttons, GtkInfoBar will emit the “response” signal with the corresponding response ID.

Parameters

first_button_text

ext to go in first button, or NULL.

[allow-none]

...

response ID for first button, then additional buttons, ending with NULL

 

Returns

a new GtkInfoBar


gtk_info_bar_add_action_widget ()

void
gtk_info_bar_add_action_widget (GtkInfoBar *info_bar,
                                GtkWidget *child,
                                gint response_id);

Add an activatable widget to the action area of a GtkInfoBar, connecting a signal handler that will emit the “response” signal on the message area when the widget is activated. The widget is appended to the end of the message areas action area.

Parameters

info_bar

a GtkInfoBar

 

child

an activatable widget

 

response_id

response ID for child

 

gtk_info_bar_remove_action_widget ()

void
gtk_info_bar_remove_action_widget (GtkInfoBar *info_bar,
                                   GtkWidget *widget);

Removes a widget from the action area of info_bar , after it been put there by a call to gtk_info_bar_add_action_widget() or gtk_info_bar_add_button().

Parameters

info_bar

a GtkInfoBar

 

widget

an action widget to remove

 

gtk_info_bar_add_button ()

GtkWidget *
gtk_info_bar_add_button (GtkInfoBar *info_bar,
                         const gchar *button_text,
                         gint response_id);

Adds a button with the given text and sets things up so that clicking the button will emit the “response” signal with the given response_id. The button is appended to the end of the info bars's action area. The button widget is returned, but usually you don't need it.

Parameters

info_bar

a GtkInfoBar

 

button_text

text of button

 

response_id

response ID for the button

 

Returns

the GtkButton widget that was added.

[transfer none][type Gtk.Button]


gtk_info_bar_add_buttons ()

void
gtk_info_bar_add_buttons (GtkInfoBar *info_bar,
                          const gchar *first_button_text,
                          ...);

Adds more buttons, same as calling gtk_info_bar_add_button() repeatedly. The variable argument list should be NULL-terminated as with gtk_info_bar_new_with_buttons(). Each button must have both text and response ID.

Parameters

info_bar

a GtkInfoBar

 

first_button_text

button text

 

...

response ID for first button, then more text-response_id pairs, ending with NULL

 

gtk_info_bar_set_response_sensitive ()

void
gtk_info_bar_set_response_sensitive (GtkInfoBar *info_bar,
                                     gint response_id,
                                     gboolean setting);

Calls gtk_widget_set_sensitive (widget, setting) for each widget in the info bars’s action area with the given response_id. A convenient way to sensitize/desensitize dialog buttons.

Parameters

info_bar

a GtkInfoBar

 

response_id

a response ID

 

setting

TRUE for sensitive

 

gtk_info_bar_set_default_response ()

void
gtk_info_bar_set_default_response (GtkInfoBar *info_bar,
                                   gint response_id);

Sets the last widget in the info bar’s action area with the given response_id as the default widget for the dialog. Pressing “Enter” normally activates the default widget.

Note that this function currently requires info_bar to be added to a widget hierarchy.

Parameters

info_bar

a GtkInfoBar

 

response_id

a response ID

 

gtk_info_bar_response ()

void
gtk_info_bar_response (GtkInfoBar *info_bar,
                       gint response_id);

Emits the “response” signal with the given response_id .

Parameters

info_bar

a GtkInfoBar

 

response_id

a response ID

 

gtk_info_bar_set_message_type ()

void
gtk_info_bar_set_message_type (GtkInfoBar *info_bar,
                               GtkMessageType message_type);

Sets the message type of the message area.

GTK+ uses this type to determine how the message is displayed.

Parameters

info_bar

a GtkInfoBar

 

message_type

a GtkMessageType

 

gtk_info_bar_get_message_type ()

GtkMessageType
gtk_info_bar_get_message_type (GtkInfoBar *info_bar);

Returns the message type of the message area.

Parameters

info_bar

a GtkInfoBar

 

Returns

the message type of the message area.


gtk_info_bar_get_show_close_button ()

gboolean
gtk_info_bar_get_show_close_button (GtkInfoBar *info_bar);

Returns whether the widget will display a standard close button.

Parameters

info_bar

a GtkInfoBar

 

Returns

TRUE if the widget displays standard close button


gtk_info_bar_set_show_close_button ()

void
gtk_info_bar_set_show_close_button (GtkInfoBar *info_bar,
                                    gboolean setting);

If true, a standard close button is shown. When clicked it emits the response GTK_RESPONSE_CLOSE.

Parameters

info_bar

a GtkInfoBar

 

setting

TRUE to include a close button

 

gtk_info_bar_get_revealed ()

gboolean
gtk_info_bar_get_revealed (GtkInfoBar *info_bar);

Returns whether the info bar is currently revealed.

Parameters

info_bar

a GtkInfoBar

 

Returns

the current value of the “revealed” property


gtk_info_bar_set_revealed ()

void
gtk_info_bar_set_revealed (GtkInfoBar *info_bar,
                           gboolean revealed);

Sets the “revealed” property to revealed . Changing this will make info_bar reveal (TRUE) or conceal (FALSE) itself via a sliding transition.

Note: this does not show or hide info_bar in the “visible” sense, so revealing has no effect if “visible” is FALSE.

Parameters

info_bar

a GtkInfoBar

 

revealed

The new value of the property

 

gtk_info_bar_add_child ()

void
gtk_info_bar_add_child (GtkInfoBar *info_bar,
                        GtkWidget *widget);

Adds a widget to the content area of the info bar.

Parameters

info_bar

a GtkInfoBar

 

widget

the child to be added

 

gtk_info_bar_remove_child ()

void
gtk_info_bar_remove_child (GtkInfoBar *info_bar,
                           GtkWidget *widget);

Removes a widget from the content area of the info bar, after it has been added with gtk_info_bar_add_child().

Parameters

info_bar

a GtkInfoBar

 

widget

a child that has been added to the content area

 

Types and Values

GtkInfoBar

typedef struct _GtkInfoBar GtkInfoBar;

Property Details

The “message-type” property

  “message-type”             GtkMessageType

The type of the message.

The type may be used to determine the appearance of the info bar.

Owner: GtkInfoBar

Flags: Read / Write / Construct

Default value: GTK_MESSAGE_INFO


The “revealed” property

  “revealed”                 gboolean

Controls whether the info bar shows its contents or not.

Owner: GtkInfoBar

Flags: Read / Write

Default value: TRUE


The “show-close-button” property

  “show-close-button”        gboolean

Whether to include a standard close button.

Owner: GtkInfoBar

Flags: Read / Write / Construct

Default value: FALSE

Signal Details

The “close” signal

void
user_function (GtkInfoBar *infobar,
               gpointer    user_data)

The ::close signal is a keybinding signal which gets emitted when the user uses a keybinding to dismiss the info bar.

The default binding for this signal is the Escape key.

Parameters

user_data

user data set when the signal handler was connected.

 

Flags: Action


The “response” signal

void
user_function (GtkInfoBar *info_bar,
               gint        response_id,
               gpointer    user_data)

Emitted when an action widget is clicked or the application programmer calls gtk_info_bar_response(). The response_id depends on which action widget was clicked.

Parameters

info_bar

the object on which the signal is emitted

 

response_id

the response ID

 

user_data

user data set when the signal handler was connected.

 

Flags: Run Last