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gtk2/gtk/gtkinfobar.c
Matthias Clasen 09d1b28249 docs: Convert to markdown 
Specifically, switch to using markdown syntax for sections.
2014-02-02 00:30:27 -05:00

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/*
* gtkinfobar.c
* This file is part of GTK+
*
* Copyright (C) 2005 - Paolo Maggi
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the gedit Team, 2005. See the AUTHORS file for a
* list of people on the gtk Team.
* See the gedit ChangeLog files for a list of changes.
*
* Modified by the GTK+ team, 2008-2009.
*/
#include "config.h"
#include <stdlib.h>
#include "gtkinfobar.h"
#include "gtkaccessible.h"
#include "gtkbuildable.h"
#include "gtkbbox.h"
#include "gtkbox.h"
#include "gtklabel.h"
#include "gtkbutton.h"
#include "gtkenums.h"
#include "gtkbindings.h"
#include "gtkdialog.h"
#include "gtkrevealer.h"
#include "gtkintl.h"
#include "gtkprivate.h"
#include "gtkorientable.h"
#include "gtktypebuiltins.h"
#include "deprecated/gtkstock.h"
/**
* SECTION:gtkinfobar
* @short_description: Report important messages to the user
* @include: gtk/gtk.h
* @see_also: #GtkStatusbar, #GtkMessageDialog
*
* #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 a 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_get_content_area() and add your widgets to the container.
*
* 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:
* |[<!-- language="C" -->
* /&ast; set up info bar &ast;/
* info_bar = gtk_info_bar_new ();
* gtk_widget_set_no_show_all (info_bar, TRUE);
* message_label = gtk_label_new ("");
* gtk_widget_show (message_label);
* content_area = gtk_info_bar_get_content_area (GTK_INFO_BAR (info_bar));
* gtk_container_add (GTK_CONTAINER (content_area), message_label);
* gtk_info_bar_add_button (GTK_INFO_BAR (info_bar),
* _("_OK"), GTK_RESPONSE_OK);
* g_signal_connect (info_bar, "response",
* G_CALLBACK (gtk_widget_hide), NULL);
* gtk_grid_attach (GTK_GRID (grid),
* info_bar,
* 0, 2, 1, 1);
*
* /&ast; ... &ast;/
*
* /&ast; show an error message &ast;/
* gtk_label_set_text (GTK_LABEL (message_label), error_message);
* gtk_info_bar_set_message_type (GTK_INFO_BAR (info_bar),
* GTK_MESSAGE_ERROR);
* gtk_widget_show (info_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 &lt;action-widgets&gt; element, which
* can contain multiple &lt;action-widget&gt; 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).
*/
enum
{
PROP_0,
PROP_MESSAGE_TYPE,
PROP_SHOW_CLOSE_BUTTON
};
struct _GtkInfoBarPrivate
{
GtkWidget *content_area;
GtkWidget *action_area;
GtkWidget *close_button;
GtkWidget *revealer;
gboolean show_close_button;
GtkMessageType message_type;
};
typedef struct _ResponseData ResponseData;
struct _ResponseData
{
gint response_id;
};
enum
{
RESPONSE,
CLOSE,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
#define ACTION_AREA_DEFAULT_BORDER 5
#define ACTION_AREA_DEFAULT_SPACING 6
#define CONTENT_AREA_DEFAULT_BORDER 8
#define CONTENT_AREA_DEFAULT_SPACING 16
static void gtk_info_bar_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_info_bar_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_info_bar_get_preferred_width (GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
static void gtk_info_bar_get_preferred_height (GtkWidget *widget,
gint *minimum_height,
gint *natural_height);
static gboolean gtk_info_bar_draw (GtkWidget *widget,
cairo_t *cr);
static void gtk_info_bar_buildable_interface_init (GtkBuildableIface *iface);
static gboolean gtk_info_bar_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data);
static void gtk_info_bar_buildable_custom_finished (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer user_data);
G_DEFINE_TYPE_WITH_CODE (GtkInfoBar, gtk_info_bar, GTK_TYPE_BOX,
G_ADD_PRIVATE (GtkInfoBar)
G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
gtk_info_bar_buildable_interface_init))
static void
gtk_info_bar_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkInfoBar *info_bar = GTK_INFO_BAR (object);
switch (prop_id)
{
case PROP_MESSAGE_TYPE:
gtk_info_bar_set_message_type (info_bar, g_value_get_enum (value));
break;
case PROP_SHOW_CLOSE_BUTTON:
gtk_info_bar_set_show_close_button (info_bar, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_info_bar_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkInfoBar *info_bar = GTK_INFO_BAR (object);
switch (prop_id)
{
case PROP_MESSAGE_TYPE:
g_value_set_enum (value, gtk_info_bar_get_message_type (info_bar));
break;
case PROP_SHOW_CLOSE_BUTTON:
g_value_set_boolean (value, gtk_info_bar_get_show_close_button (info_bar));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_info_bar_finalize (GObject *object)
{
G_OBJECT_CLASS (gtk_info_bar_parent_class)->finalize (object);
}
static void
response_data_free (gpointer data)
{
g_slice_free (ResponseData, data);
}
static ResponseData *
get_response_data (GtkWidget *widget,
gboolean create)
{
ResponseData *ad = g_object_get_data (G_OBJECT (widget),
"gtk-info-bar-response-data");
if (ad == NULL && create)
{
ad = g_slice_new (ResponseData);
g_object_set_data_full (G_OBJECT (widget),
I_("gtk-info-bar-response-data"),
ad,
response_data_free);
}
return ad;
}
static GtkWidget *
find_button (GtkInfoBar *info_bar,
gint response_id)
{
GList *children, *list;
GtkWidget *child = NULL;
children = gtk_container_get_children (GTK_CONTAINER (info_bar->priv->action_area));
for (list = children; list; list = list->next)
{
ResponseData *rd = get_response_data (list->data, FALSE);
if (rd && rd->response_id == response_id)
{
child = list->data;
break;
}
}
g_list_free (children);
return child;
}
static void
gtk_info_bar_close (GtkInfoBar *info_bar)
{
if (!gtk_widget_get_visible (info_bar->priv->close_button)
&& !find_button (info_bar, GTK_RESPONSE_CANCEL))
return;
gtk_info_bar_response (GTK_INFO_BAR (info_bar),
GTK_RESPONSE_CANCEL);
}
static void
get_padding_and_border (GtkWidget *widget,
GtkBorder *border)
{
GtkStyleContext *context;
GtkStateFlags state;
GtkBorder tmp;
context = gtk_widget_get_style_context (widget);
state = gtk_widget_get_state_flags (widget);
gtk_style_context_get_padding (context, state, border);
gtk_style_context_get_border (context, state, &tmp);
border->top += tmp.top;
border->right += tmp.right;
border->bottom += tmp.bottom;
border->left += tmp.left;
}
static void
gtk_info_bar_get_preferred_width (GtkWidget *widget,
gint *minimum_width,
gint *natural_width)
{
GtkBorder border;
get_padding_and_border (widget, &border);
GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->get_preferred_width (widget,
minimum_width,
natural_width);
if (minimum_width)
*minimum_width += border.left + border.right;
if (natural_width)
*natural_width += border.left + border.right;
}
static void
gtk_info_bar_get_preferred_height (GtkWidget *widget,
gint *minimum_height,
gint *natural_height)
{
GtkBorder border;
get_padding_and_border (widget, &border);
GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->get_preferred_height (widget,
minimum_height,
natural_height);
if (minimum_height)
*minimum_height += border.top + border.bottom;
if (natural_height)
*natural_height += border.top + border.bottom;
}
static gboolean
gtk_info_bar_draw (GtkWidget *widget,
cairo_t *cr)
{
GtkStyleContext *context;
context = gtk_widget_get_style_context (widget);
gtk_render_background (context, cr, 0, 0,
gtk_widget_get_allocated_width (widget),
gtk_widget_get_allocated_height (widget));
gtk_render_frame (context, cr, 0, 0,
gtk_widget_get_allocated_width (widget),
gtk_widget_get_allocated_height (widget));
GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->draw (widget, cr);
return FALSE;
}
static void
gtk_info_bar_show (GtkWidget *widget)
{
GtkInfoBarPrivate *priv = GTK_INFO_BAR (widget)->priv;
GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->show (widget);
gtk_revealer_set_reveal_child (GTK_REVEALER (priv->revealer), TRUE);
}
static void
child_revealed (GObject *object, GParamSpec *pspec, gpointer data)
{
GtkWidget *widget = data;
GTK_WIDGET_CLASS (gtk_info_bar_parent_class)->hide (widget);
g_signal_handlers_disconnect_by_func (object, child_revealed, widget);
g_object_notify (G_OBJECT (widget), "visible");
}
static void
gtk_info_bar_hide (GtkWidget *widget)
{
GtkInfoBarPrivate *priv = GTK_INFO_BAR (widget)->priv;
g_signal_connect_object (priv->revealer, "notify::child-revealed",
G_CALLBACK (child_revealed), widget, 0);
gtk_revealer_set_reveal_child (GTK_REVEALER (priv->revealer), FALSE);
}
static void
gtk_info_bar_class_init (GtkInfoBarClass *klass)
{
GtkWidgetClass *widget_class;
GObjectClass *object_class;
GtkBindingSet *binding_set;
widget_class = GTK_WIDGET_CLASS (klass);
object_class = G_OBJECT_CLASS (klass);
object_class->get_property = gtk_info_bar_get_property;
object_class->set_property = gtk_info_bar_set_property;
object_class->finalize = gtk_info_bar_finalize;
widget_class->get_preferred_width = gtk_info_bar_get_preferred_width;
widget_class->get_preferred_height = gtk_info_bar_get_preferred_height;
widget_class->draw = gtk_info_bar_draw;
widget_class->show = gtk_info_bar_show;
widget_class->hide = gtk_info_bar_hide;
klass->close = gtk_info_bar_close;
/**
* GtkInfoBar:message-type:
*
* The type of the message.
*
* The type may be used to determine the appearance of the info bar.
*
* Since: 2.18
*/
g_object_class_install_property (object_class,
PROP_MESSAGE_TYPE,
g_param_spec_enum ("message-type",
P_("Message Type"),
P_("The type of message"),
GTK_TYPE_MESSAGE_TYPE,
GTK_MESSAGE_INFO,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GtkInfoBar:show-close-button:
*
* Whether to include a standard close button.
*
* Since: 3.10
*/
g_object_class_install_property (object_class,
PROP_SHOW_CLOSE_BUTTON,
g_param_spec_boolean ("show-close-button",
P_("Show Close Button"),
P_("Whether to include a standard close button"),
FALSE,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GtkInfoBar::response:
* @info_bar: the object on which the signal is emitted
* @response_id: the response ID
*
* Emitted when an action widget is clicked or the application programmer
* calls gtk_dialog_response(). The @response_id depends on which action
* widget was clicked.
*
* Since: 2.18
*/
signals[RESPONSE] = g_signal_new (I_("response"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkInfoBarClass, response),
NULL, NULL,
g_cclosure_marshal_VOID__INT,
G_TYPE_NONE, 1,
G_TYPE_INT);
/**
* GtkInfoBar::close:
*
* The ::close signal is a
* <link linkend="keybinding-signals">keybinding signal</link>
* which gets emitted when the user uses a keybinding to dismiss
* the info bar.
*
* The default binding for this signal is the Escape key.
*
* Since: 2.18
*/
signals[CLOSE] = g_signal_new (I_("close"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkInfoBarClass, close),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
/**
* GtkInfoBar:content-area-border:
*
* The width of the border around the content
* content area of the info bar.
*
* Since: 2.18
* Deprecated: 3.6: Use gtk_container_set_border_width()
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("content-area-border",
P_("Content area border"),
P_("Width of border around the content area"),
0,
G_MAXINT,
CONTENT_AREA_DEFAULT_BORDER,
GTK_PARAM_READABLE));
/**
* GtkInfoBar:content-area-spacing:
*
* The default spacing used between elements of the
* content area of the info bar.
*
* Since: 2.18
* Deprecated: 3.6: Use gtk_box_set_spacing()
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("content-area-spacing",
P_("Content area spacing"),
P_("Spacing between elements of the area"),
0,
G_MAXINT,
CONTENT_AREA_DEFAULT_SPACING,
GTK_PARAM_READABLE));
/**
* GtkInfoBar:button-spacing:
*
* Spacing between buttons in the action area of the info bar.
*
* Since: 2.18
* Deprecated: 3.6: Use gtk_box_set_spacing()
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("button-spacing",
P_("Button spacing"),
P_("Spacing between buttons"),
0,
G_MAXINT,
ACTION_AREA_DEFAULT_SPACING,
GTK_PARAM_READABLE));
/**
* GtkInfoBar:action-area-border:
*
* Width of the border around the action area of the info bar.
*
* Since: 2.18
* Deprecated: 3.6: Use gtk_container_set_border_width()
*/
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("action-area-border",
P_("Action area border"),
P_("Width of border around the action area"),
0,
G_MAXINT,
ACTION_AREA_DEFAULT_BORDER,
GTK_PARAM_READABLE));
binding_set = gtk_binding_set_by_class (klass);
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Escape, 0, "close", 0);
/* Bind class to template
*/
gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkinfobar.ui");
gtk_widget_class_bind_template_child_internal_private (widget_class, GtkInfoBar, content_area);
gtk_widget_class_bind_template_child_internal_private (widget_class, GtkInfoBar, action_area);
gtk_widget_class_bind_template_child_internal_private (widget_class, GtkInfoBar, close_button);
gtk_widget_class_bind_template_child_internal_private (widget_class, GtkInfoBar, revealer);
}
static void
close_button_clicked_cb (GtkWidget *button,
GtkInfoBar *info_bar)
{
gtk_info_bar_response (GTK_INFO_BAR (info_bar),
GTK_RESPONSE_CLOSE);
}
static void
gtk_info_bar_init (GtkInfoBar *info_bar)
{
GtkWidget *widget = GTK_WIDGET (info_bar);
info_bar->priv = gtk_info_bar_get_instance_private (info_bar);
gtk_widget_set_redraw_on_allocate (widget, TRUE);
/* message-type is a CONSTRUCT property, so we init to a value
* different from its default to trigger its property setter
* during construction */
info_bar->priv->message_type = GTK_MESSAGE_OTHER;
gtk_widget_init_template (GTK_WIDGET (info_bar));
gtk_widget_set_no_show_all (info_bar->priv->close_button, TRUE);
g_signal_connect (info_bar->priv->close_button, "clicked",
G_CALLBACK (close_button_clicked_cb), info_bar);
}
static GtkBuildableIface *parent_buildable_iface;
static void
gtk_info_bar_buildable_interface_init (GtkBuildableIface *iface)
{
parent_buildable_iface = g_type_interface_peek_parent (iface);
iface->custom_tag_start = gtk_info_bar_buildable_custom_tag_start;
iface->custom_finished = gtk_info_bar_buildable_custom_finished;
}
static gint
get_response_for_widget (GtkInfoBar *info_bar,
GtkWidget *widget)
{
ResponseData *rd;
rd = get_response_data (widget, FALSE);
if (!rd)
return GTK_RESPONSE_NONE;
else
return rd->response_id;
}
static void
action_widget_activated (GtkWidget *widget,
GtkInfoBar *info_bar)
{
gint response_id;
response_id = get_response_for_widget (info_bar, widget);
gtk_info_bar_response (info_bar, response_id);
}
/**
* gtk_info_bar_add_action_widget:
* @info_bar: a #GtkInfoBar
* @child: an activatable widget
* @response_id: response ID for @child
*
* Add an activatable widget to the action area of a #GtkInfoBar,
* connecting a signal handler that will emit the #GtkInfoBar::response
* signal on the message area when the widget is activated. The widget
* is appended to the end of the message areas action area.
*
* Since: 2.18
*/
void
gtk_info_bar_add_action_widget (GtkInfoBar *info_bar,
GtkWidget *child,
gint response_id)
{
ResponseData *ad;
guint signal_id;
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
g_return_if_fail (GTK_IS_WIDGET (child));
ad = get_response_data (child, TRUE);
ad->response_id = response_id;
if (GTK_IS_BUTTON (child))
signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
else
signal_id = GTK_WIDGET_GET_CLASS (child)->activate_signal;
if (signal_id)
{
GClosure *closure;
closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
G_OBJECT (info_bar));
g_signal_connect_closure_by_id (child, signal_id, 0, closure, FALSE);
}
else
g_warning ("Only 'activatable' widgets can be packed into the action area of a GtkInfoBar");
gtk_box_pack_end (GTK_BOX (info_bar->priv->action_area),
child, FALSE, FALSE, 0);
if (response_id == GTK_RESPONSE_HELP)
gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (info_bar->priv->action_area),
child, TRUE);
}
/**
* gtk_info_bar_get_action_area:
* @info_bar: a #GtkInfoBar
*
* Returns the action area of @info_bar.
*
* Returns: (transfer none): the action area
*
* Since: 2.18
*/
GtkWidget*
gtk_info_bar_get_action_area (GtkInfoBar *info_bar)
{
g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), NULL);
return info_bar->priv->action_area;
}
/**
* gtk_info_bar_get_content_area:
* @info_bar: a #GtkInfoBar
*
* Returns the content area of @info_bar.
*
* Returns: (transfer none): the content area
*
* Since: 2.18
*/
GtkWidget*
gtk_info_bar_get_content_area (GtkInfoBar *info_bar)
{
g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), NULL);
return info_bar->priv->content_area;
}
/**
* gtk_info_bar_add_button:
* @info_bar: a #GtkInfoBar
* @button_text: text of button
* @response_id: response ID for the button
*
* 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.
*
* Returns: (transfer none): the #GtkButton widget that was added
*
* Since: 2.18
*/
GtkWidget*
gtk_info_bar_add_button (GtkInfoBar *info_bar,
const gchar *button_text,
gint response_id)
{
GtkWidget *button;
g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), NULL);
g_return_val_if_fail (button_text != NULL, NULL);
button = gtk_button_new_with_label (button_text);
gtk_button_set_use_underline (GTK_BUTTON (button), TRUE);
G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
if (button_text)
{
GtkStockItem item;
if (gtk_stock_lookup (button_text, &item))
g_object_set (button, "use-stock", TRUE, NULL);
}
G_GNUC_END_IGNORE_DEPRECATIONS;
gtk_widget_set_can_default (button, TRUE);
gtk_widget_show (button);
gtk_info_bar_add_action_widget (info_bar, button, response_id);
return button;
}
static void
add_buttons_valist (GtkInfoBar *info_bar,
const gchar *first_button_text,
va_list args)
{
const gchar* text;
gint response_id;
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
if (first_button_text == NULL)
return;
text = first_button_text;
response_id = va_arg (args, gint);
while (text != NULL)
{
gtk_info_bar_add_button (info_bar, text, response_id);
text = va_arg (args, gchar*);
if (text == NULL)
break;
response_id = va_arg (args, int);
}
}
/**
* gtk_info_bar_add_buttons:
* @info_bar: a #GtkInfoBar
* @first_button_text: button text or stock ID
* @...: response ID for first button, then more text-response_id pairs,
* ending with %NULL
*
* 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.
*
* Since: 2.18
*/
void
gtk_info_bar_add_buttons (GtkInfoBar *info_bar,
const gchar *first_button_text,
...)
{
va_list args;
va_start (args, first_button_text);
add_buttons_valist (info_bar, first_button_text, args);
va_end (args);
}
/**
* gtk_info_bar_new:
*
* Creates a new #GtkInfoBar object.
*
* Returns: a new #GtkInfoBar object
*
* Since: 2.18
*/
GtkWidget *
gtk_info_bar_new (void)
{
return g_object_new (GTK_TYPE_INFO_BAR, NULL);
}
/**
* gtk_info_bar_new_with_buttons:
* @first_button_text: (allow-none): stock ID or text to go in first button, or %NULL
* @...: response ID for first button, then additional buttons, ending
* with %NULL
*
* Creates a new #GtkInfoBar with buttons. Button text/response ID
* pairs should be listed, with a %NULL pointer ending the list.
* Button text can be either a stock ID such as %GTK_STOCK_OK, or
* some arbitrary text. 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.
*
* Returns: a new #GtkInfoBar
*/
GtkWidget*
gtk_info_bar_new_with_buttons (const gchar *first_button_text,
...)
{
GtkInfoBar *info_bar;
va_list args;
info_bar = GTK_INFO_BAR (gtk_info_bar_new ());
va_start (args, first_button_text);
add_buttons_valist (info_bar, first_button_text, args);
va_end (args);
return GTK_WIDGET (info_bar);
}
/**
* gtk_info_bar_set_response_sensitive:
* @info_bar: a #GtkInfoBar
* @response_id: a response ID
* @setting: TRUE for sensitive
*
* 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.
*
* Since: 2.18
*/
void
gtk_info_bar_set_response_sensitive (GtkInfoBar *info_bar,
gint response_id,
gboolean setting)
{
GList *children, *list;
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
children = gtk_container_get_children (GTK_CONTAINER (info_bar->priv->action_area));
for (list = children; list; list = list->next)
{
GtkWidget *widget = list->data;
ResponseData *rd = get_response_data (widget, FALSE);
if (rd && rd->response_id == response_id)
gtk_widget_set_sensitive (widget, setting);
}
g_list_free (children);
}
/**
* gtk_info_bar_set_default_response:
* @info_bar: a #GtkInfoBar
* @response_id: a 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.
*
* Since: 2.18
*/
void
gtk_info_bar_set_default_response (GtkInfoBar *info_bar,
gint response_id)
{
GList *children, *list;
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
children = gtk_container_get_children (GTK_CONTAINER (info_bar->priv->action_area));
for (list = children; list; list = list->next)
{
GtkWidget *widget = list->data;
ResponseData *rd = get_response_data (widget, FALSE);
if (rd && rd->response_id == response_id)
gtk_widget_grab_default (widget);
}
g_list_free (children);
}
/**
* gtk_info_bar_response:
* @info_bar: a #GtkInfoBar
* @response_id: a response ID
*
* Emits the 'response' signal with the given @response_id.
*
* Since: 2.18
*/
void
gtk_info_bar_response (GtkInfoBar *info_bar,
gint response_id)
{
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
g_signal_emit (info_bar, signals[RESPONSE], 0, response_id);
}
typedef struct
{
gchar *widget_name;
gchar *response_id;
} ActionWidgetInfo;
typedef struct
{
GtkInfoBar *info_bar;
GtkBuilder *builder;
GSList *items;
gchar *response;
} ActionWidgetsSubParserData;
static void
attributes_start_element (GMarkupParseContext *context,
const gchar *element_name,
const gchar **names,
const gchar **values,
gpointer user_data,
GError **error)
{
ActionWidgetsSubParserData *parser_data = (ActionWidgetsSubParserData*)user_data;
guint i;
if (strcmp (element_name, "action-widget") == 0)
{
for (i = 0; names[i]; i++)
if (strcmp (names[i], "response") == 0)
parser_data->response = g_strdup (values[i]);
}
else if (strcmp (element_name, "action-widgets") == 0)
return;
else
g_warning ("Unsupported tag for GtkInfoBar: %s\n", element_name);
}
static void
attributes_text_element (GMarkupParseContext *context,
const gchar *text,
gsize text_len,
gpointer user_data,
GError **error)
{
ActionWidgetsSubParserData *parser_data = (ActionWidgetsSubParserData*)user_data;
ActionWidgetInfo *item;
if (!parser_data->response)
return;
item = g_new (ActionWidgetInfo, 1);
item->widget_name = g_strndup (text, text_len);
item->response_id = parser_data->response;
parser_data->items = g_slist_prepend (parser_data->items, item);
parser_data->response = NULL;
}
static const GMarkupParser attributes_parser =
{
attributes_start_element,
NULL,
attributes_text_element,
};
gboolean
gtk_info_bar_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
GMarkupParser *parser,
gpointer *data)
{
ActionWidgetsSubParserData *parser_data;
if (parent_buildable_iface->custom_tag_start (buildable, builder, child,
tagname, parser, data))
return TRUE;
if (!child && strcmp (tagname, "action-widgets") == 0)
{
parser_data = g_slice_new0 (ActionWidgetsSubParserData);
parser_data->info_bar = GTK_INFO_BAR (buildable);
parser_data->items = NULL;
*parser = attributes_parser;
*data = parser_data;
return TRUE;
}
return FALSE;
}
static void
gtk_info_bar_buildable_custom_finished (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const gchar *tagname,
gpointer user_data)
{
GSList *l;
ActionWidgetsSubParserData *parser_data;
GObject *object;
GtkInfoBar *info_bar;
ResponseData *ad;
guint signal_id;
if (strcmp (tagname, "action-widgets"))
{
parent_buildable_iface->custom_finished (buildable, builder, child,
tagname, user_data);
return;
}
info_bar = GTK_INFO_BAR (buildable);
parser_data = (ActionWidgetsSubParserData*)user_data;
parser_data->items = g_slist_reverse (parser_data->items);
for (l = parser_data->items; l; l = l->next)
{
ActionWidgetInfo *item = l->data;
object = gtk_builder_get_object (builder, item->widget_name);
if (!object)
{
g_warning ("Unknown object %s specified in action-widgets of %s",
item->widget_name,
gtk_buildable_get_name (GTK_BUILDABLE (buildable)));
continue;
}
ad = get_response_data (GTK_WIDGET (object), TRUE);
ad->response_id = atoi (item->response_id);
if (GTK_IS_BUTTON (object))
signal_id = g_signal_lookup ("clicked", GTK_TYPE_BUTTON);
else
signal_id = GTK_WIDGET_GET_CLASS (object)->activate_signal;
if (signal_id)
{
GClosure *closure;
closure = g_cclosure_new_object (G_CALLBACK (action_widget_activated),
G_OBJECT (info_bar));
g_signal_connect_closure_by_id (object,
signal_id,
0,
closure,
FALSE);
}
if (ad->response_id == GTK_RESPONSE_HELP)
gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (info_bar->priv->action_area),
GTK_WIDGET (object), TRUE);
g_free (item->widget_name);
g_free (item->response_id);
g_free (item);
}
g_slist_free (parser_data->items);
g_slice_free (ActionWidgetsSubParserData, parser_data);
}
/**
* gtk_info_bar_set_message_type:
* @info_bar: a #GtkInfoBar
* @message_type: a #GtkMessageType
*
* Sets the message type of the message area.
* GTK+ uses this type to determine what color to use
* when drawing the message area.
*
* Since: 2.18
*/
void
gtk_info_bar_set_message_type (GtkInfoBar *info_bar,
GtkMessageType message_type)
{
GtkInfoBarPrivate *priv;
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
priv = info_bar->priv;
if (priv->message_type != message_type)
{
GtkStyleContext *context;
AtkObject *atk_obj;
const char *type_class[] = {
GTK_STYLE_CLASS_INFO,
GTK_STYLE_CLASS_WARNING,
GTK_STYLE_CLASS_QUESTION,
GTK_STYLE_CLASS_ERROR,
NULL
};
context = gtk_widget_get_style_context (GTK_WIDGET (info_bar));
if (type_class[priv->message_type])
gtk_style_context_remove_class (context, type_class[priv->message_type]);
priv->message_type = message_type;
gtk_widget_queue_draw (GTK_WIDGET (info_bar));
atk_obj = gtk_widget_get_accessible (GTK_WIDGET (info_bar));
if (GTK_IS_ACCESSIBLE (atk_obj))
{
const char *name = NULL;
atk_object_set_role (atk_obj, ATK_ROLE_INFO_BAR);
switch (message_type)
{
case GTK_MESSAGE_INFO:
name = _("Information");
break;
case GTK_MESSAGE_QUESTION:
name = _("Question");
break;
case GTK_MESSAGE_WARNING:
name = _("Warning");
break;
case GTK_MESSAGE_ERROR:
name = _("Error");
break;
case GTK_MESSAGE_OTHER:
break;
default:
g_warning ("Unknown GtkMessageType %u", message_type);
break;
}
if (name)
atk_object_set_name (atk_obj, name);
}
if (type_class[priv->message_type])
gtk_style_context_add_class (context, type_class[priv->message_type]);
g_object_notify (G_OBJECT (info_bar), "message-type");
}
}
/**
* gtk_info_bar_get_message_type:
* @info_bar: a #GtkInfoBar
*
* Returns the message type of the message area.
*
* Returns: the message type of the message area.
*
* Since: 2.18
*/
GtkMessageType
gtk_info_bar_get_message_type (GtkInfoBar *info_bar)
{
g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), GTK_MESSAGE_OTHER);
return info_bar->priv->message_type;
}
/**
* gtk_info_bar_set_show_close_button:
* @info_bar: a #GtkInfoBar
* @setting: %TRUE to include a close button
*
* If true, a standard close button is shown. When clicked it emits
* the response %GTK_RESPONSE_CLOSE.
*
* Since: 3.10
*/
void
gtk_info_bar_set_show_close_button (GtkInfoBar *info_bar,
gboolean setting)
{
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
if (setting != info_bar->priv->show_close_button)
{
info_bar->priv->show_close_button = setting;
gtk_widget_set_visible (info_bar->priv->close_button, setting);
g_object_notify (G_OBJECT (info_bar), "show-close-button");
}
}
/**
* gtk_info_bar_get_show_close_button:
* @info_bar: a #GtkInfoBar
*
* Returns whether the widget will display a standard close button.
*
* Returns: %TRUE if the widget displays standard close button
*
* Since: 3.10
*/
gboolean
gtk_info_bar_get_show_close_button (GtkInfoBar *info_bar)
{
g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), FALSE);
return info_bar->priv->show_close_button;
}
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