Class

GtkInfoBar

Description [src]

final class Gtk.InfoBar : Gtk.Widget {
  /* No available fields */
}

GtkInfoBar can be show messages to the user without a dialog.

An example GtkInfoBar

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:

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 element, which can contain multiple 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.

Hierarchy

Ancestors

GtkWidget
GInitiallyUnowned
GObject

Implements

Constructors

gtk_info_bar_new

Creates a new GtkInfoBar object.

gtk_info_bar_new_with_buttons

Creates a new GtkInfoBar with buttons.

Instance methods

gtk_info_bar_add_action_widget

Add an activatable widget to the action area of a GtkInfoBar.

gtk_info_bar_add_button

Adds a button with the given text.

gtk_info_bar_add_buttons

Adds multiple buttons.

gtk_info_bar_add_child

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

gtk_info_bar_get_message_type

Returns the message type of the message area.

gtk_info_bar_get_revealed

Returns whether the info bar is currently revealed.

gtk_info_bar_get_show_close_button

Returns whether the widget will display a standard close button.

gtk_info_bar_remove_action_widget

Removes a widget from the action area of info_bar.

gtk_info_bar_remove_child

Removes a widget from the content area of the info bar.

gtk_info_bar_response

Emits the “response” signal with the given response_id.

gtk_info_bar_set_default_response

Sets the last widget in the info bar’s action area with the given response_id as the default widget for the dialog.

gtk_info_bar_set_message_type

Sets the message type of the message area.

gtk_info_bar_set_response_sensitive

Sets the sensitivity of action widgets for response_id.

gtk_info_bar_set_revealed

Sets whether the GtkInfoBar is revealed.

gtk_info_bar_set_show_close_button

If true, a standard close button is shown.

Methods inherited from GtkWidget (159)

gtk_widget_action_set_enabled

Enable or disable an action installed with gtk_widget_class_install_action().

gtk_widget_activate

For widgets that can be “activated” (buttons, menu items, etc.), this function activates them.

gtk_widget_activate_action

Looks up the action in the action groups associated with widget and its ancestors, and activates it.

gtk_widget_activate_action_variant

Looks up the action in the action groups associated with widget and its ancestors, and activates it.

gtk_widget_activate_default

Activates the default.activate action from widget.

gtk_widget_add_controller

Adds controller to widget so that it will receive events.

gtk_widget_add_css_class

Adds a style class to widget.

gtk_widget_add_mnemonic_label

Adds a widget to the list of mnemonic labels for this widget.

gtk_widget_add_tick_callback

Queues an animation frame update and adds a callback to be called before each frame.

gtk_widget_allocate

This function is only used by GtkWidget subclasses, to assign a size, position and (optionally) baseline to their child widgets.

gtk_widget_child_focus

Called by widgets as the user moves around the window using keyboard shortcuts.

gtk_widget_compute_bounds

Computes the bounds for widget in the coordinate space of target.

gtk_widget_compute_expand

Computes whether a container should give this widget extra space when possible.

gtk_widget_compute_point

Translates the given point in widget‘s coordinates to coordinates relative to target’s coordinate system.

gtk_widget_compute_transform

Computes a matrix suitable to describe a transformation from widget‘s coordinate system into target‘s coordinate system.

gtk_widget_contains

Tests if the point at (x, y) is contained in widget.

gtk_widget_create_pango_context

Creates a new PangoContext with the appropriate font map, font options, font description, and base direction for drawing text for this widget.

gtk_widget_create_pango_layout

Creates a new PangoLayout with the appropriate font map, font description, and base direction for drawing text for this widget.

gtk_drag_check_threshold

Checks to see if a drag movement has passed the GTK drag threshold.

gtk_widget_error_bell

Notifies the user about an input-related error on this widget.

gtk_widget_get_allocated_baseline

Returns the baseline that has currently been allocated to widget.

gtk_widget_get_allocated_height

Returns the height that has currently been allocated to widget.

gtk_widget_get_allocated_width

Returns the width that has currently been allocated to widget.

Methods inherited from GtkBuildable (1)

gtk_buildable_get_buildable_id

Gets the ID of the buildable object.

Properties inherited from GtkAccessible (1)

Gtk.Accessible:accessible-role

The accessible role of the given GtkAccessible implementation.

Signals

Gtk.InfoBar::close

Gets emitted when the user uses a keybinding to dismiss the info bar.

Gtk.InfoBar::response

Emitted when an action widget is clicked.