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gtk2/gtk/gtkinfobar.c
Matthias Clasen ae7cefd97d Drop style class defines 
We document the supported style classes by name,
not by macro name, and these macros don't really
add any value. Drop them for GTK 4.
2020-08-14 07:03:27 -04:00

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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 "gtkbuildable.h"
#include "gtkbuilderprivate.h"
#include "gtkbox.h"
#include "gtklabel.h"
#include "gtkbutton.h"
#include "gtkenums.h"
#include "gtkdialog.h"
#include "gtkrevealer.h"
#include "gtkintl.h"
#include "gtkprivate.h"
#include "gtkorientable.h"
#include "gtkstylecontext.h"
#include "gtktypebuiltins.h"
#include "gtkwidgetprivate.h"
#include "gtkbinlayout.h"
#include "gtkgestureclick.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 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:
* |[<!-- language="C" -->
* 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.
*/
enum
{
PROP_0,
PROP_MESSAGE_TYPE,
PROP_SHOW_CLOSE_BUTTON,
PROP_REVEALED,
LAST_PROP
};
typedef struct _GtkInfoBarClass GtkInfoBarClass;
struct _GtkInfoBar
{
GtkWidget parent_instance;
GtkWidget *content_area;
GtkWidget *action_area;
GtkWidget *close_button;
GtkWidget *revealer;
GtkMessageType message_type;
int default_response;
gboolean default_response_sensitive;
};
struct _GtkInfoBarClass
{
GtkWidgetClass parent_class;
void (* response) (GtkInfoBar *info_bar, int response_id);
void (* close) (GtkInfoBar *info_bar);
};
typedef struct _ResponseData ResponseData;
struct _ResponseData
{
int response_id;
gulong handler_id;
};
enum
{
RESPONSE,
CLOSE,
LAST_SIGNAL
};
static GParamSpec *props[LAST_PROP] = { NULL, };
static guint signals[LAST_SIGNAL];
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_buildable_interface_init (GtkBuildableIface *iface);
static gboolean gtk_info_bar_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *tagname,
GtkBuildableParser *parser,
gpointer *data);
static void gtk_info_bar_buildable_custom_finished (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *tagname,
gpointer user_data);
static void gtk_info_bar_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *type);
G_DEFINE_TYPE_WITH_CODE (GtkInfoBar, gtk_info_bar, GTK_TYPE_WIDGET,
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;
case PROP_REVEALED:
gtk_info_bar_set_revealed (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;
case PROP_REVEALED:
g_value_set_boolean (value, gtk_info_bar_get_revealed (info_bar));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
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 void
clear_response_data (GtkWidget *widget)
{
ResponseData *data;
data = get_response_data (widget, FALSE);
g_signal_handler_disconnect (widget, data->handler_id);
g_object_set_data (G_OBJECT (widget), "gtk-info-bar-response-data", NULL);
}
static GtkWidget *
find_button (GtkInfoBar *info_bar,
int response_id)
{
GtkWidget *child;
for (child = gtk_widget_get_first_child (info_bar->action_area);
child != NULL;
child = gtk_widget_get_next_sibling (child))
{
ResponseData *rd = get_response_data (child, FALSE);
if (rd && rd->response_id == response_id)
return child;
}
return NULL;
}
static void
gtk_info_bar_close (GtkInfoBar *info_bar)
{
if (!gtk_widget_get_visible (info_bar->close_button) &&
!find_button (info_bar, GTK_RESPONSE_CANCEL))
return;
gtk_info_bar_response (GTK_INFO_BAR (info_bar),
GTK_RESPONSE_CANCEL);
}
static void
gtk_info_bar_dispose (GObject *object)
{
GtkInfoBar *self = GTK_INFO_BAR (object);
g_clear_pointer (&self->revealer, gtk_widget_unparent);
G_OBJECT_CLASS (gtk_info_bar_parent_class)->dispose (object);
}
static void
gtk_info_bar_class_init (GtkInfoBarClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->get_property = gtk_info_bar_get_property;
object_class->set_property = gtk_info_bar_set_property;
object_class->dispose = gtk_info_bar_dispose;
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.
*/
props[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|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkInfoBar:show-close-button:
*
* Whether to include a standard close button.
*/
props[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|G_PARAM_EXPLICIT_NOTIFY);
props[PROP_REVEALED] =
g_param_spec_boolean ("revealed",
P_("Reveal"),
P_("Controls whether the info bar shows its contents or not"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (object_class, LAST_PROP, props);
/**
* 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_info_bar_response(). The @response_id depends on which action
* widget was clicked.
*/
signals[RESPONSE] = g_signal_new (I_("response"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkInfoBarClass, response),
NULL, NULL,
NULL,
G_TYPE_NONE, 1,
G_TYPE_INT);
/**
* GtkInfoBar::close:
*
* The ::close signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted when the user uses a keybinding to dismiss
* the info bar.
*
* The default binding for this signal is the Escape key.
*/
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,
NULL,
G_TYPE_NONE, 0);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Escape, 0,
"close",
NULL);
gtk_widget_class_set_css_name (widget_class, I_("infobar"));
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
}
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
click_released_cb (GtkGestureClick *gesture,
guint n_press,
double x,
double y,
GtkInfoBar *info_bar)
{
if (info_bar->default_response && info_bar->default_response_sensitive)
gtk_info_bar_response (info_bar, info_bar->default_response);
}
static void
gtk_info_bar_init (GtkInfoBar *info_bar)
{
GtkWidget *widget = GTK_WIDGET (info_bar);
GtkWidget *main_box;
GtkGesture *gesture;
/* 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->message_type = GTK_MESSAGE_OTHER;
info_bar->revealer = gtk_revealer_new ();
gtk_revealer_set_reveal_child (GTK_REVEALER (info_bar->revealer), TRUE);
gtk_widget_set_parent (info_bar->revealer, widget);
main_box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_revealer_set_child (GTK_REVEALER (info_bar->revealer), main_box);
info_bar->content_area = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_set_hexpand (info_bar->content_area, TRUE);
gtk_box_append (GTK_BOX (main_box), info_bar->content_area);
info_bar->action_area = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_set_halign (info_bar->action_area, GTK_ALIGN_END);
gtk_widget_set_valign (info_bar->action_area, GTK_ALIGN_CENTER);
gtk_box_append (GTK_BOX (main_box), info_bar->action_area);
info_bar->close_button = gtk_button_new_from_icon_name ("window-close-symbolic");
gtk_widget_hide (info_bar->close_button);
gtk_widget_set_valign (info_bar->close_button, GTK_ALIGN_CENTER);
gtk_widget_add_css_class (info_bar->close_button, "close");
gtk_box_append (GTK_BOX (main_box), info_bar->close_button);
g_signal_connect (info_bar->close_button, "clicked",
G_CALLBACK (close_button_clicked_cb), info_bar);
gesture = gtk_gesture_click_new ();
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), GDK_BUTTON_PRIMARY);
g_signal_connect (gesture, "released", G_CALLBACK (click_released_cb), widget);
gtk_widget_add_controller (widget, GTK_EVENT_CONTROLLER (gesture));
}
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->add_child = gtk_info_bar_buildable_add_child;
iface->custom_tag_start = gtk_info_bar_buildable_custom_tag_start;
iface->custom_finished = gtk_info_bar_buildable_custom_finished;
}
static int
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)
{
int 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.
*/
void
gtk_info_bar_add_action_widget (GtkInfoBar *info_bar,
GtkWidget *child,
int 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);
G_DEBUG_HERE();
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));
ad->handler_id = 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_append (GTK_BOX (info_bar->action_area), child);
}
/**
* gtk_info_bar_remove_action_widget:
* @info_bar: a #GtkInfoBar
* @widget: an action widget to remove
*
* 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().
*/
void
gtk_info_bar_remove_action_widget (GtkInfoBar *info_bar,
GtkWidget *widget)
{
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
g_return_if_fail (GTK_IS_WIDGET (widget));
g_return_if_fail (gtk_widget_get_parent (widget) == info_bar->action_area);
clear_response_data (widget);
gtk_box_remove (GTK_BOX (info_bar->action_area), widget);
}
/**
* 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) (type Gtk.Button): the #GtkButton widget
* that was added
*/
GtkWidget*
gtk_info_bar_add_button (GtkInfoBar *info_bar,
const char *button_text,
int 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);
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 char *first_button_text,
va_list args)
{
const char * text;
int 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, int);
while (text != NULL)
{
gtk_info_bar_add_button (info_bar, text, response_id);
text = va_arg (args, char *);
if (text == NULL)
break;
response_id = va_arg (args, int);
}
}
/**
* gtk_info_bar_add_buttons:
* @info_bar: a #GtkInfoBar
* @first_button_text: button text
* @...: 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.
*/
void
gtk_info_bar_add_buttons (GtkInfoBar *info_bar,
const char *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
*/
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): ext 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.
* 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 char *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);
}
static void
update_default_response (GtkInfoBar *info_bar,
int response_id,
gboolean sensitive)
{
info_bar->default_response = response_id;
info_bar->default_response_sensitive = sensitive;
if (response_id && sensitive)
gtk_widget_add_css_class (GTK_WIDGET (info_bar), "action");
else
gtk_widget_remove_css_class (GTK_WIDGET (info_bar), "action");
}
/**
* 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.
*/
void
gtk_info_bar_set_response_sensitive (GtkInfoBar *info_bar,
int response_id,
gboolean setting)
{
GtkWidget *child;
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
for (child = gtk_widget_get_first_child (info_bar->action_area);
child != NULL;
child = gtk_widget_get_next_sibling (child))
{
ResponseData *rd = get_response_data (child, FALSE);
if (rd && rd->response_id == response_id)
gtk_widget_set_sensitive (child, setting);
}
if (response_id == info_bar->default_response)
update_default_response (info_bar, response_id, setting);
}
/**
* 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.
*/
void
gtk_info_bar_set_default_response (GtkInfoBar *info_bar,
int response_id)
{
GtkWidget *child;
GtkWidget *window;
gboolean sensitive = TRUE;
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
window = gtk_widget_get_ancestor (GTK_WIDGET (info_bar), GTK_TYPE_WINDOW);
for (child = gtk_widget_get_first_child (info_bar->action_area);
child != NULL;
child = gtk_widget_get_next_sibling (child))
{
ResponseData *rd = get_response_data (child, FALSE);
if (rd && rd->response_id == response_id)
{
gtk_window_set_default_widget (GTK_WINDOW (window), child);
sensitive = gtk_widget_get_sensitive (child);
break;
}
}
update_default_response (info_bar, response_id, sensitive);
}
/**
* gtk_info_bar_response:
* @info_bar: a #GtkInfoBar
* @response_id: a response ID
*
* Emits the “response” signal with the given @response_id.
*/
void
gtk_info_bar_response (GtkInfoBar *info_bar,
int response_id)
{
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
g_signal_emit (info_bar, signals[RESPONSE], 0, response_id);
}
typedef struct
{
char *name;
int response_id;
int line;
int col;
} ActionWidgetInfo;
typedef struct
{
GtkInfoBar *info_bar;
GtkBuilder *builder;
GSList *items;
int response_id;
gboolean is_text;
GString *string;
int line;
int col;
} SubParserData;
static void
action_widget_info_free (gpointer data)
{
ActionWidgetInfo *item = data;
g_free (item->name);
g_free (item);
}
static void
parser_start_element (GtkBuildableParseContext *context,
const char *element_name,
const char **names,
const char **values,
gpointer user_data,
GError **error)
{
SubParserData *data = (SubParserData*)user_data;
if (strcmp (element_name, "action-widget") == 0)
{
const char *response;
GValue gvalue = G_VALUE_INIT;
if (!_gtk_builder_check_parent (data->builder, context, "action-widgets", error))
return;
if (!g_markup_collect_attributes (element_name, names, values, error,
G_MARKUP_COLLECT_STRING, "response", &response,
G_MARKUP_COLLECT_INVALID))
{
_gtk_builder_prefix_error (data->builder, context, error);
return;
}
if (!gtk_builder_value_from_string_type (data->builder, GTK_TYPE_RESPONSE_TYPE, response, &gvalue, error))
{
_gtk_builder_prefix_error (data->builder, context, error);
return;
}
data->response_id = g_value_get_enum (&gvalue);
data->is_text = TRUE;
g_string_set_size (data->string, 0);
gtk_buildable_parse_context_get_position (context, &data->line, &data->col);
}
else if (strcmp (element_name, "action-widgets") == 0)
{
if (!_gtk_builder_check_parent (data->builder, context, "object", error))
return;
if (!g_markup_collect_attributes (element_name, names, values, error,
G_MARKUP_COLLECT_INVALID, NULL, NULL,
G_MARKUP_COLLECT_INVALID))
_gtk_builder_prefix_error (data->builder, context, error);
}
else
{
_gtk_builder_error_unhandled_tag (data->builder, context,
"GtkInfoBar", element_name,
error);
}
}
static void
parser_text_element (GtkBuildableParseContext *context,
const char *text,
gsize text_len,
gpointer user_data,
GError **error)
{
SubParserData *data = (SubParserData*)user_data;
if (data->is_text)
g_string_append_len (data->string, text, text_len);
}
static void
parser_end_element (GtkBuildableParseContext *context,
const char *element_name,
gpointer user_data,
GError **error)
{
SubParserData *data = (SubParserData*)user_data;
if (data->is_text)
{
ActionWidgetInfo *item;
item = g_new (ActionWidgetInfo, 1);
item->name = g_strdup (data->string->str);
item->response_id = data->response_id;
item->line = data->line;
item->col = data->col;
data->items = g_slist_prepend (data->items, item);
data->is_text = FALSE;
}
}
static const GtkBuildableParser sub_parser =
{
parser_start_element,
parser_end_element,
parser_text_element,
};
gboolean
gtk_info_bar_buildable_custom_tag_start (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *tagname,
GtkBuildableParser *parser,
gpointer *parser_data)
{
SubParserData *data;
if (parent_buildable_iface->custom_tag_start (buildable, builder, child,
tagname, parser, parser_data))
return TRUE;
if (!child && strcmp (tagname, "action-widgets") == 0)
{
data = g_slice_new0 (SubParserData);
data->info_bar = GTK_INFO_BAR (buildable);
data->builder = builder;
data->string = g_string_new ("");
data->items = NULL;
*parser = sub_parser;
*parser_data = data;
return TRUE;
}
return FALSE;
}
static void
gtk_info_bar_buildable_custom_finished (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *tagname,
gpointer user_data)
{
GtkInfoBar *info_bar = GTK_INFO_BAR (buildable);
GSList *l;
SubParserData *data;
GObject *object;
ResponseData *ad;
guint signal_id;
if (strcmp (tagname, "action-widgets"))
{
parent_buildable_iface->custom_finished (buildable, builder, child,
tagname, user_data);
return;
}
data = (SubParserData*)user_data;
data->items = g_slist_reverse (data->items);
for (l = data->items; l; l = l->next)
{
ActionWidgetInfo *item = l->data;
object = _gtk_builder_lookup_object (builder, item->name, item->line, item->col);
if (!object)
continue;
ad = get_response_data (GTK_WIDGET (object), TRUE);
ad->response_id = 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);
}
}
g_slist_free_full (data->items, action_widget_info_free);
g_string_free (data->string, TRUE);
g_slice_free (SubParserData, data);
}
static void
gtk_info_bar_buildable_add_child (GtkBuildable *buildable,
GtkBuilder *builder,
GObject *child,
const char *type)
{
GtkInfoBar *info_bar = GTK_INFO_BAR (buildable);
if (!type && GTK_IS_WIDGET (child))
gtk_info_bar_add_child (GTK_INFO_BAR (info_bar), GTK_WIDGET (child));
else if (g_strcmp0 (type, "action") == 0)
gtk_box_append (GTK_BOX (info_bar->action_area), GTK_WIDGET (child));
else
parent_buildable_iface->add_child (buildable, builder, child, type);
}
/**
* 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 how the message is displayed.
*/
void
gtk_info_bar_set_message_type (GtkInfoBar *info_bar,
GtkMessageType message_type)
{
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
if (info_bar->message_type != message_type)
{
const char *type_class[] = {
"info",
"warning",
"question",
"error",
NULL
};
if (type_class[info_bar->message_type])
gtk_widget_remove_css_class (GTK_WIDGET (info_bar), type_class[info_bar->message_type]);
info_bar->message_type = message_type;
gtk_widget_queue_draw (GTK_WIDGET (info_bar));
if (type_class[info_bar->message_type])
gtk_widget_add_css_class (GTK_WIDGET (info_bar), type_class[info_bar->message_type]);
g_object_notify_by_pspec (G_OBJECT (info_bar), props[PROP_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.
*/
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->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.
*/
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 == gtk_info_bar_get_show_close_button (info_bar))
return;
gtk_widget_set_visible (info_bar->close_button, setting);
g_object_notify_by_pspec (G_OBJECT (info_bar), props[PROP_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
*/
gboolean
gtk_info_bar_get_show_close_button (GtkInfoBar *info_bar)
{
g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), FALSE);
return gtk_widget_get_visible (info_bar->close_button);
}
/**
* gtk_info_bar_set_revealed:
* @info_bar: a #GtkInfoBar
* @revealed: The new value of the property
*
* Sets the #GtkInfoBar: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 #GtkWidget:visible sense,
* so revealing has no effect if #GtkWidget:visible is %FALSE.
*/
void
gtk_info_bar_set_revealed (GtkInfoBar *info_bar,
gboolean revealed)
{
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
if (revealed == gtk_revealer_get_reveal_child (GTK_REVEALER (info_bar->revealer)))
return;
gtk_revealer_set_reveal_child (GTK_REVEALER (info_bar->revealer), revealed);
g_object_notify_by_pspec (G_OBJECT (info_bar), props[PROP_REVEALED]);
}
/**
* gtk_info_bar_get_revealed:
* @info_bar: a #GtkInfoBar
*
* Returns whether the info bar is currently revealed.
*
* Returns: the current value of the #GtkInfoBar:revealed property
*/
gboolean
gtk_info_bar_get_revealed (GtkInfoBar *info_bar)
{
g_return_val_if_fail (GTK_IS_INFO_BAR (info_bar), FALSE);
return gtk_revealer_get_reveal_child (GTK_REVEALER (info_bar->revealer));
}
/**
* gtk_info_bar_add_child:
* @info_bar: a #GtkInfoBar
* @widget: the child to be added
*
* Adds a widget to the content area of the info bar.
*/
void
gtk_info_bar_add_child (GtkInfoBar *info_bar,
GtkWidget *widget)
{
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
g_return_if_fail (GTK_IS_WIDGET (widget));
gtk_box_append (GTK_BOX (info_bar->content_area), widget);
}
/**
* gtk_info_bar_remove_child:
* @info_bar: a #GtkInfoBar
* @widget: a child that has been added to the content area
*
* Removes a widget from the content area of the info bar,
* after it has been added with gtk_info_bar_add_child().
*/
void
gtk_info_bar_remove_child (GtkInfoBar *info_bar,
GtkWidget *widget)
{
g_return_if_fail (GTK_IS_INFO_BAR (info_bar));
g_return_if_fail (GTK_IS_WIDGET (widget));
gtk_box_remove (GTK_BOX (info_bar->content_area), widget);
}
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