/* GTK - The GIMP Toolkit * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * 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, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS * file for a list of people on the GTK+ Team. See the ChangeLog * files for a list of changes. These files are distributed with * GTK+ at ftp://ftp.gtk.org/pub/gtk/. */ #include #include #include "config.h" #include "gtkbutton.h" #include "gtkdialog.h" #include "gtkhbbox.h" #include "gtklabel.h" #include "gtkhseparator.h" #include "gtkmarshalers.h" #include "gtkvbox.h" #include "gdkkeysyms.h" #include "gtkmain.h" #include "gtkintl.h" #include "gtkbindings.h" #include "gtkprivate.h" #include "gtkbuildable.h" struct _GtkDialogPriv { GtkWidget *vbox; GtkWidget *action_area; GtkWidget *separator; guint ignore_separator : 1; }; typedef struct _ResponseData ResponseData; struct _ResponseData { gint response_id; }; static void gtk_dialog_add_buttons_valist (GtkDialog *dialog, const gchar *first_button_text, va_list args); static gboolean gtk_dialog_delete_event_handler (GtkWidget *widget, GdkEventAny *event, gpointer user_data); static void gtk_dialog_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_dialog_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void gtk_dialog_style_set (GtkWidget *widget, GtkStyle *prev_style); static void gtk_dialog_map (GtkWidget *widget); static void gtk_dialog_close (GtkDialog *dialog); static ResponseData * get_response_data (GtkWidget *widget, gboolean create); static void gtk_dialog_buildable_interface_init (GtkBuildableIface *iface); static GObject * gtk_dialog_buildable_get_internal_child (GtkBuildable *buildable, GtkBuilder *builder, const gchar *childname); static gboolean gtk_dialog_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, GMarkupParser *parser, gpointer *data); static void gtk_dialog_buildable_custom_finished (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, gpointer user_data); enum { PROP_0, PROP_HAS_SEPARATOR }; enum { RESPONSE, CLOSE, LAST_SIGNAL }; static guint dialog_signals[LAST_SIGNAL]; G_DEFINE_TYPE_WITH_CODE (GtkDialog, gtk_dialog, GTK_TYPE_WINDOW, G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE, gtk_dialog_buildable_interface_init)) static void gtk_dialog_class_init (GtkDialogClass *class) { GObjectClass *gobject_class; GtkWidgetClass *widget_class; GtkBindingSet *binding_set; gobject_class = G_OBJECT_CLASS (class); widget_class = GTK_WIDGET_CLASS (class); gobject_class->set_property = gtk_dialog_set_property; gobject_class->get_property = gtk_dialog_get_property; widget_class->map = gtk_dialog_map; widget_class->style_set = gtk_dialog_style_set; class->close = gtk_dialog_close; g_type_class_add_private (gobject_class, sizeof (GtkDialogPriv)); /** * GtkDialog:has-separator: * * When %TRUE, the dialog has a separator bar above its buttons. */ g_object_class_install_property (gobject_class, PROP_HAS_SEPARATOR, g_param_spec_boolean ("has-separator", P_("Has separator"), P_("The dialog has a separator bar above its buttons"), TRUE, GTK_PARAM_READWRITE)); /** * GtkDialog::response: * @dialog: the object on which the signal is emitted * @response_id: the response ID * * Emitted when an action widget is clicked, the dialog receives a * delete event, or the application programmer calls gtk_dialog_response(). * On a delete event, the response ID is #GTK_RESPONSE_DELETE_EVENT. * Otherwise, it depends on which action widget was clicked. */ dialog_signals[RESPONSE] = g_signal_new (I_("response"), G_OBJECT_CLASS_TYPE (class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GtkDialogClass, response), NULL, NULL, _gtk_marshal_VOID__INT, G_TYPE_NONE, 1, G_TYPE_INT); /** * GtkDialog::close: * * The ::close signal is a * keybinding signal * which gets emitted when the user uses a keybinding to close * the dialog. * * The default binding for this signal is the Escape key. */ dialog_signals[CLOSE] = g_signal_new (I_("close"), G_OBJECT_CLASS_TYPE (class), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (GtkDialogClass, close), NULL, NULL, _gtk_marshal_VOID__VOID, G_TYPE_NONE, 0); 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 main dialog area"), 0, G_MAXINT, 2, GTK_PARAM_READABLE)); /** * GtkDialog:content-area-spacing: * * The default spacing used between elements of the * content area of the dialog, as returned by * gtk_dialog_get_content_area(), unless gtk_box_set_spacing() * was called on that widget directly. * * Since: 2.16 */ 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 main dialog area"), 0, G_MAXINT, 0, GTK_PARAM_READABLE)); gtk_widget_class_install_style_property (widget_class, g_param_spec_int ("button-spacing", P_("Button spacing"), P_("Spacing between buttons"), 0, G_MAXINT, 6, GTK_PARAM_READABLE)); 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 button area at the bottom of the dialog"), 0, G_MAXINT, 5, GTK_PARAM_READABLE)); binding_set = gtk_binding_set_by_class (class); gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0, "close", 0); } static void update_spacings (GtkDialog *dialog) { GtkDialogPriv *priv = dialog->priv; gint content_area_border; gint content_area_spacing; gint button_spacing; gint action_area_border; gtk_widget_style_get (GTK_WIDGET (dialog), "content-area-border", &content_area_border, "content-area-spacing", &content_area_spacing, "button-spacing", &button_spacing, "action-area-border", &action_area_border, NULL); gtk_container_set_border_width (GTK_CONTAINER (priv->vbox), content_area_border); if (!_gtk_box_get_spacing_set (GTK_BOX (priv->vbox))) { gtk_box_set_spacing (GTK_BOX (priv->vbox), content_area_spacing); _gtk_box_set_spacing_set (GTK_BOX (priv->vbox), FALSE); } gtk_box_set_spacing (GTK_BOX (priv->action_area), button_spacing); gtk_container_set_border_width (GTK_CONTAINER (priv->action_area), action_area_border); } static void gtk_dialog_init (GtkDialog *dialog) { GtkDialogPriv *priv; dialog->priv = G_TYPE_INSTANCE_GET_PRIVATE (dialog, GTK_TYPE_DIALOG, GtkDialogPriv); priv = dialog->priv; priv->ignore_separator = FALSE; /* To avoid breaking old code that prevents destroy on delete event * by connecting a handler, we have to have the FIRST signal * connection on the dialog. */ g_signal_connect (dialog, "delete-event", G_CALLBACK (gtk_dialog_delete_event_handler), NULL); priv->vbox = gtk_vbox_new (FALSE, 0); gtk_container_add (GTK_CONTAINER (dialog), priv->vbox); gtk_widget_show (priv->vbox); priv->action_area = gtk_hbutton_box_new (); gtk_button_box_set_layout (GTK_BUTTON_BOX (priv->action_area), GTK_BUTTONBOX_END); gtk_box_pack_end (GTK_BOX (priv->vbox), priv->action_area, FALSE, TRUE, 0); gtk_widget_show (priv->action_area); priv->separator = gtk_hseparator_new (); gtk_box_pack_end (GTK_BOX (priv->vbox), priv->separator, FALSE, TRUE, 0); gtk_widget_show (priv->separator); gtk_window_set_type_hint (GTK_WINDOW (dialog), GDK_WINDOW_TYPE_HINT_DIALOG); gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_CENTER_ON_PARENT); } static GtkBuildableIface *parent_buildable_iface; static void gtk_dialog_buildable_interface_init (GtkBuildableIface *iface) { parent_buildable_iface = g_type_interface_peek_parent (iface); iface->get_internal_child = gtk_dialog_buildable_get_internal_child; iface->custom_tag_start = gtk_dialog_buildable_custom_tag_start; iface->custom_finished = gtk_dialog_buildable_custom_finished; } static GObject * gtk_dialog_buildable_get_internal_child (GtkBuildable *buildable, GtkBuilder *builder, const gchar *childname) { GtkDialogPriv *priv = GTK_DIALOG (buildable)->priv; if (strcmp (childname, "vbox") == 0) return G_OBJECT (priv->vbox); else if (strcmp (childname, "action_area") == 0) return G_OBJECT (priv->action_area); return parent_buildable_iface->get_internal_child (buildable, builder, childname); } static void gtk_dialog_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkDialog *dialog; dialog = GTK_DIALOG (object); switch (prop_id) { case PROP_HAS_SEPARATOR: gtk_dialog_set_has_separator (dialog, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gtk_dialog_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkDialog *dialog = GTK_DIALOG (object); GtkDialogPriv *priv = dialog->priv; switch (prop_id) { case PROP_HAS_SEPARATOR: g_value_set_boolean (value, priv->separator != NULL); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static gboolean gtk_dialog_delete_event_handler (GtkWidget *widget, GdkEventAny *event, gpointer user_data) { /* emit response signal */ gtk_dialog_response (GTK_DIALOG (widget), GTK_RESPONSE_DELETE_EVENT); /* Do the destroy by default */ return FALSE; } /* A far too tricky heuristic for getting the right initial * focus widget if none was set. What we do is we focus the first * widget in the tab chain, but if this results in the focus * ending up on one of the response widgets _other_ than the * default response, we focus the default response instead. * * Additionally, skip selectable labels when looking for the * right initial focus widget. */ static void gtk_dialog_map (GtkWidget *widget) { GtkWidget *default_widget, *focus; GtkWindow *window = GTK_WINDOW (widget); GtkDialog *dialog = GTK_DIALOG (widget); GtkDialogPriv *priv = dialog->priv; GTK_WIDGET_CLASS (gtk_dialog_parent_class)->map (widget); focus = gtk_window_get_focus (window); if (!focus) { GList *children, *tmp_list; GtkWidget *first_focus = NULL; do { g_signal_emit_by_name (window, "move_focus", GTK_DIR_TAB_FORWARD); focus = gtk_window_get_focus (window); if (first_focus == NULL) first_focus = focus; else if (first_focus == focus) { if (GTK_IS_LABEL (focus) && !gtk_label_get_current_uri (GTK_LABEL (focus))) gtk_label_select_region (GTK_LABEL (focus), 0, 0); break; } if (!GTK_IS_LABEL (focus)) break; } while (TRUE); tmp_list = children = gtk_container_get_children (GTK_CONTAINER (priv->action_area)); while (tmp_list) { GtkWidget *child = tmp_list->data; default_widget = gtk_window_get_default_widget (window); if ((focus == NULL || child == focus) && child != default_widget && default_widget) { gtk_widget_grab_focus (default_widget); break; } tmp_list = tmp_list->next; } g_list_free (children); } } static void gtk_dialog_style_set (GtkWidget *widget, GtkStyle *prev_style) { update_spacings (GTK_DIALOG (widget)); } static GtkWidget * dialog_find_button (GtkDialog *dialog, gint response_id) { GtkDialogPriv *priv = dialog->priv; GtkWidget *child = NULL; GList *children, *tmp_list; children = gtk_container_get_children (GTK_CONTAINER (priv->action_area)); for (tmp_list = children; tmp_list; tmp_list = tmp_list->next) { ResponseData *rd = get_response_data (tmp_list->data, FALSE); if (rd && rd->response_id == response_id) { child = tmp_list->data; break; } } g_list_free (children); return child; } static void gtk_dialog_close (GtkDialog *dialog) { /* Synthesize delete_event to close dialog. */ GtkWidget *widget = GTK_WIDGET (dialog); GdkEvent *event; event = gdk_event_new (GDK_DELETE); event->any.window = g_object_ref (gtk_widget_get_window (widget)); event->any.send_event = TRUE; gtk_main_do_event (event); gdk_event_free (event); } GtkWidget* gtk_dialog_new (void) { return g_object_new (GTK_TYPE_DIALOG, NULL); } static GtkWidget* gtk_dialog_new_empty (const gchar *title, GtkWindow *parent, GtkDialogFlags flags) { GtkDialog *dialog; dialog = g_object_new (GTK_TYPE_DIALOG, NULL); if (title) gtk_window_set_title (GTK_WINDOW (dialog), title); if (parent) gtk_window_set_transient_for (GTK_WINDOW (dialog), parent); if (flags & GTK_DIALOG_MODAL) gtk_window_set_modal (GTK_WINDOW (dialog), TRUE); if (flags & GTK_DIALOG_DESTROY_WITH_PARENT) gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE); if (flags & GTK_DIALOG_NO_SEPARATOR) gtk_dialog_set_has_separator (dialog, FALSE); return GTK_WIDGET (dialog); } /** * gtk_dialog_new_with_buttons: * @title: (allow-none): Title of the dialog, or %NULL * @parent: (allow-none): Transient parent of the dialog, or %NULL * @flags: from #GtkDialogFlags * @first_button_text: (allow-none): stock ID or text to go in first button, or %NULL * @Varargs: response ID for first button, then additional buttons, ending with %NULL * * Creates a new #GtkDialog with title @title (or %NULL for the default * title; see gtk_window_set_title()) and transient parent @parent (or * %NULL for none; see gtk_window_set_transient_for()). The @flags * argument can be used to make the dialog modal (#GTK_DIALOG_MODAL) * and/or to have it destroyed along with its transient parent * (#GTK_DIALOG_DESTROY_WITH_PARENT). After @flags, 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, * #GtkDialog will emit the #GtkDialog::response signal with the corresponding * response ID. If a #GtkDialog receives the #GtkWidget::delete-event signal, * it will emit ::response with a response ID of #GTK_RESPONSE_DELETE_EVENT. * However, destroying a dialog does not emit the ::response signal; * so be careful relying on ::response when using the * #GTK_DIALOG_DESTROY_WITH_PARENT flag. Buttons are from left to right, * so the first button in the list will be the leftmost button in the dialog. * * Here's a simple example: * |[ * GtkWidget *dialog = gtk_dialog_new_with_buttons ("My dialog", * main_app_window, * GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT, * GTK_STOCK_OK, * GTK_RESPONSE_ACCEPT, * GTK_STOCK_CANCEL, * GTK_RESPONSE_REJECT, * NULL); * ]| * * Return value: a new #GtkDialog **/ GtkWidget* gtk_dialog_new_with_buttons (const gchar *title, GtkWindow *parent, GtkDialogFlags flags, const gchar *first_button_text, ...) { GtkDialog *dialog; va_list args; dialog = GTK_DIALOG (gtk_dialog_new_empty (title, parent, flags)); va_start (args, first_button_text); gtk_dialog_add_buttons_valist (dialog, first_button_text, args); va_end (args); return GTK_WIDGET (dialog); } 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-dialog-response-data"); if (ad == NULL && create) { ad = g_slice_new (ResponseData); g_object_set_data_full (G_OBJECT (widget), I_("gtk-dialog-response-data"), ad, response_data_free); } return ad; } static void action_widget_activated (GtkWidget *widget, GtkDialog *dialog) { gint response_id; response_id = gtk_dialog_get_response_for_widget (dialog, widget); gtk_dialog_response (dialog, response_id); } /** * gtk_dialog_add_action_widget: * @dialog: a #GtkDialog * @child: an activatable widget * @response_id: response ID for @child * * Adds an activatable widget to the action area of a #GtkDialog, * connecting a signal handler that will emit the #GtkDialog::response * signal on the dialog when the widget is activated. The widget is * appended to the end of the dialog's action area. If you want to add a * non-activatable widget, simply pack it into the @action_area field * of the #GtkDialog struct. **/ void gtk_dialog_add_action_widget (GtkDialog *dialog, GtkWidget *child, gint response_id) { GtkDialogPriv *priv; ResponseData *ad; guint signal_id; g_return_if_fail (GTK_IS_DIALOG (dialog)); g_return_if_fail (GTK_IS_WIDGET (child)); priv = dialog->priv; 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 (dialog)); 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 GtkDialog"); gtk_box_pack_end (GTK_BOX (priv->action_area), child, FALSE, TRUE, 0); if (response_id == GTK_RESPONSE_HELP) gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (priv->action_area), child, TRUE); } /** * gtk_dialog_add_button: * @dialog: a #GtkDialog * @button_text: text of button, or stock ID * @response_id: response ID for the button * * Adds a button with the given text (or a stock button, if @button_text is a * stock ID) and sets things up so that clicking the button will emit the * #GtkDialog::response signal with the given @response_id. The button is * appended to the end of the dialog's action area. The button widget is * returned, but usually you don't need it. * * Return value: the button widget that was added **/ GtkWidget* gtk_dialog_add_button (GtkDialog *dialog, const gchar *button_text, gint response_id) { GtkWidget *button; g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL); g_return_val_if_fail (button_text != NULL, NULL); button = gtk_button_new_from_stock (button_text); gtk_widget_set_can_default (button, TRUE); gtk_widget_show (button); gtk_dialog_add_action_widget (dialog, button, response_id); return button; } static void gtk_dialog_add_buttons_valist (GtkDialog *dialog, const gchar *first_button_text, va_list args) { const gchar* text; gint response_id; g_return_if_fail (GTK_IS_DIALOG (dialog)); if (first_button_text == NULL) return; text = first_button_text; response_id = va_arg (args, gint); while (text != NULL) { gtk_dialog_add_button (dialog, text, response_id); text = va_arg (args, gchar*); if (text == NULL) break; response_id = va_arg (args, int); } } /** * gtk_dialog_add_buttons: * @dialog: a #GtkDialog * @first_button_text: button text or stock ID * @Varargs: response ID for first button, then more text-response_id pairs * * Adds more buttons, same as calling gtk_dialog_add_button() * repeatedly. The variable argument list should be %NULL-terminated * as with gtk_dialog_new_with_buttons(). Each button must have both * text and response ID. **/ void gtk_dialog_add_buttons (GtkDialog *dialog, const gchar *first_button_text, ...) { va_list args; va_start (args, first_button_text); gtk_dialog_add_buttons_valist (dialog, first_button_text, args); va_end (args); } /** * gtk_dialog_set_response_sensitive: * @dialog: a #GtkDialog * @response_id: a response ID * @setting: %TRUE for sensitive * * Calls gtk_widget_set_sensitive (widget, @setting) * for each widget in the dialog's action area with the given @response_id. * A convenient way to sensitize/desensitize dialog buttons. **/ void gtk_dialog_set_response_sensitive (GtkDialog *dialog, gint response_id, gboolean setting) { GtkDialogPriv *priv; GList *children; GList *tmp_list; g_return_if_fail (GTK_IS_DIALOG (dialog)); priv = dialog->priv; children = gtk_container_get_children (GTK_CONTAINER (priv->action_area)); tmp_list = children; while (tmp_list != NULL) { GtkWidget *widget = tmp_list->data; ResponseData *rd = get_response_data (widget, FALSE); if (rd && rd->response_id == response_id) gtk_widget_set_sensitive (widget, setting); tmp_list = g_list_next (tmp_list); } g_list_free (children); } /** * gtk_dialog_set_default_response: * @dialog: a #GtkDialog * @response_id: a response ID * * Sets the last widget in the dialog's action area with the given @response_id * as the default widget for the dialog. Pressing "Enter" normally activates * the default widget. **/ void gtk_dialog_set_default_response (GtkDialog *dialog, gint response_id) { GtkDialogPriv *priv; GList *children; GList *tmp_list; g_return_if_fail (GTK_IS_DIALOG (dialog)); priv = dialog->priv; children = gtk_container_get_children (GTK_CONTAINER (priv->action_area)); tmp_list = children; while (tmp_list != NULL) { GtkWidget *widget = tmp_list->data; ResponseData *rd = get_response_data (widget, FALSE); if (rd && rd->response_id == response_id) gtk_widget_grab_default (widget); tmp_list = g_list_next (tmp_list); } g_list_free (children); } /** * gtk_dialog_set_has_separator: * @dialog: a #GtkDialog * @setting: %TRUE to have a separator * * Sets whether the dialog has a separator above the buttons. * %TRUE by default. **/ void gtk_dialog_set_has_separator (GtkDialog *dialog, gboolean setting) { GtkDialogPriv *priv; g_return_if_fail (GTK_IS_DIALOG (dialog)); priv = dialog->priv; /* this might fail if we get called before _init() somehow */ g_assert (priv->vbox != NULL); if (priv->ignore_separator) { g_warning ("Ignoring the separator setting"); return; } if (setting && priv->separator == NULL) { priv->separator = gtk_hseparator_new (); gtk_box_pack_end (GTK_BOX (priv->vbox), priv->separator, FALSE, TRUE, 0); /* The app programmer could screw this up, but, their own fault. * Moves the separator just above the action area. */ gtk_box_reorder_child (GTK_BOX (priv->vbox), priv->separator, 1); gtk_widget_show (priv->separator); } else if (!setting && priv->separator != NULL) { gtk_widget_destroy (priv->separator); priv->separator = NULL; } g_object_notify (G_OBJECT (dialog), "has-separator"); } /** * gtk_dialog_get_has_separator: * @dialog: a #GtkDialog * * Accessor for whether the dialog has a separator. * * Return value: %TRUE if the dialog has a separator **/ gboolean gtk_dialog_get_has_separator (GtkDialog *dialog) { g_return_val_if_fail (GTK_IS_DIALOG (dialog), FALSE); return dialog->priv->separator != NULL; } /** * gtk_dialog_response: * @dialog: a #GtkDialog * @response_id: response ID * * Emits the #GtkDialog::response signal with the given response ID. * Used to indicate that the user has responded to the dialog in some way; * typically either you or gtk_dialog_run() will be monitoring the * ::response signal and take appropriate action. **/ void gtk_dialog_response (GtkDialog *dialog, gint response_id) { g_return_if_fail (GTK_IS_DIALOG (dialog)); g_signal_emit (dialog, dialog_signals[RESPONSE], 0, response_id); } typedef struct { GtkDialog *dialog; gint response_id; GMainLoop *loop; gboolean destroyed; } RunInfo; static void shutdown_loop (RunInfo *ri) { if (g_main_loop_is_running (ri->loop)) g_main_loop_quit (ri->loop); } static void run_unmap_handler (GtkDialog *dialog, gpointer data) { RunInfo *ri = data; shutdown_loop (ri); } static void run_response_handler (GtkDialog *dialog, gint response_id, gpointer data) { RunInfo *ri; ri = data; ri->response_id = response_id; shutdown_loop (ri); } static gint run_delete_handler (GtkDialog *dialog, GdkEventAny *event, gpointer data) { RunInfo *ri = data; shutdown_loop (ri); return TRUE; /* Do not destroy */ } static void run_destroy_handler (GtkDialog *dialog, gpointer data) { RunInfo *ri = data; /* shutdown_loop will be called by run_unmap_handler */ ri->destroyed = TRUE; } /** * gtk_dialog_run: * @dialog: a #GtkDialog * * Blocks in a recursive main loop until the @dialog either emits the * #GtkDialog::response signal, or is destroyed. If the dialog is * destroyed during the call to gtk_dialog_run(), gtk_dialog_run() returns * #GTK_RESPONSE_NONE. Otherwise, it returns the response ID from the * ::response signal emission. * * Before entering the recursive main loop, gtk_dialog_run() calls * gtk_widget_show() on the dialog for you. Note that you still * need to show any children of the dialog yourself. * * During gtk_dialog_run(), the default behavior of #GtkWidget::delete-event * is disabled; if the dialog receives ::delete_event, it will not be * destroyed as windows usually are, and gtk_dialog_run() will return * #GTK_RESPONSE_DELETE_EVENT. Also, during gtk_dialog_run() the dialog * will be modal. You can force gtk_dialog_run() to return at any time by * calling gtk_dialog_response() to emit the ::response signal. Destroying * the dialog during gtk_dialog_run() is a very bad idea, because your * post-run code won't know whether the dialog was destroyed or not. * * After gtk_dialog_run() returns, you are responsible for hiding or * destroying the dialog if you wish to do so. * * Typical usage of this function might be: * |[ * gint result = gtk_dialog_run (GTK_DIALOG (dialog)); * switch (result) * { * case GTK_RESPONSE_ACCEPT: * do_application_specific_something (); * break; * default: * do_nothing_since_dialog_was_cancelled (); * break; * } * gtk_widget_destroy (dialog); * ]| * * Note that even though the recursive main loop gives the effect of a * modal dialog (it prevents the user from interacting with other * windows in the same window group while the dialog is run), callbacks * such as timeouts, IO channel watches, DND drops, etc, will * be triggered during a gtk_dialog_run() call. * * Return value: response ID **/ gint gtk_dialog_run (GtkDialog *dialog) { RunInfo ri = { NULL, GTK_RESPONSE_NONE, NULL, FALSE }; gboolean was_modal; gulong response_handler; gulong unmap_handler; gulong destroy_handler; gulong delete_handler; g_return_val_if_fail (GTK_IS_DIALOG (dialog), -1); g_object_ref (dialog); was_modal = gtk_window_get_modal (GTK_WINDOW (dialog)); if (!was_modal) gtk_window_set_modal (GTK_WINDOW (dialog), TRUE); if (!gtk_widget_get_visible (GTK_WIDGET (dialog))) gtk_widget_show (GTK_WIDGET (dialog)); response_handler = g_signal_connect (dialog, "response", G_CALLBACK (run_response_handler), &ri); unmap_handler = g_signal_connect (dialog, "unmap", G_CALLBACK (run_unmap_handler), &ri); delete_handler = g_signal_connect (dialog, "delete-event", G_CALLBACK (run_delete_handler), &ri); destroy_handler = g_signal_connect (dialog, "destroy", G_CALLBACK (run_destroy_handler), &ri); ri.loop = g_main_loop_new (NULL, FALSE); GDK_THREADS_LEAVE (); g_main_loop_run (ri.loop); GDK_THREADS_ENTER (); g_main_loop_unref (ri.loop); ri.loop = NULL; if (!ri.destroyed) { if (!was_modal) gtk_window_set_modal (GTK_WINDOW(dialog), FALSE); g_signal_handler_disconnect (dialog, response_handler); g_signal_handler_disconnect (dialog, unmap_handler); g_signal_handler_disconnect (dialog, delete_handler); g_signal_handler_disconnect (dialog, destroy_handler); } g_object_unref (dialog); return ri.response_id; } void _gtk_dialog_set_ignore_separator (GtkDialog *dialog, gboolean ignore_separator) { GtkDialogPriv *priv = dialog->priv; priv->ignore_separator = ignore_separator; } /** * gtk_dialog_get_widget_for_response: * @dialog: a #GtkDialog * @response_id: the response ID used by the @dialog widget * * Gets the widget button that uses the given response ID in the action area * of a dialog. * * Returns: the @widget button that uses the given @response_id, or %NULL. * * Since: 2.20 */ GtkWidget* gtk_dialog_get_widget_for_response (GtkDialog *dialog, gint response_id) { GtkDialogPriv *priv; GList *children; GList *tmp_list; g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL); priv = dialog->priv; children = gtk_container_get_children (GTK_CONTAINER (priv->action_area)); tmp_list = children; while (tmp_list != NULL) { GtkWidget *widget = tmp_list->data; ResponseData *rd = get_response_data (widget, FALSE); if (rd && rd->response_id == response_id) { g_list_free (children); return widget; } tmp_list = g_list_next (tmp_list); } g_list_free (children); return NULL; } /** * gtk_dialog_get_response_for_widget: * @dialog: a #GtkDialog * @widget: a widget in the action area of @dialog * * Gets the response id of a widget in the action area * of a dialog. * * Returns: the response id of @widget, or %GTK_RESPONSE_NONE * if @widget doesn't have a response id set. * * Since: 2.8 */ gint gtk_dialog_get_response_for_widget (GtkDialog *dialog, GtkWidget *widget) { ResponseData *rd; rd = get_response_data (widget, FALSE); if (!rd) return GTK_RESPONSE_NONE; else return rd->response_id; } /** * gtk_alternative_dialog_button_order: * @screen: (allow-none): a #GdkScreen, or %NULL to use the default screen * * Returns %TRUE if dialogs are expected to use an alternative * button order on the screen @screen. See * gtk_dialog_set_alternative_button_order() for more details * about alternative button order. * * If you need to use this function, you should probably connect * to the ::notify:gtk-alternative-button-order signal on the * #GtkSettings object associated to @screen, in order to be * notified if the button order setting changes. * * Returns: Whether the alternative button order should be used * * Since: 2.6 */ gboolean gtk_alternative_dialog_button_order (GdkScreen *screen) { GtkSettings *settings; gboolean result; if (screen) settings = gtk_settings_get_for_screen (screen); else settings = gtk_settings_get_default (); g_object_get (settings, "gtk-alternative-button-order", &result, NULL); return result; } static void gtk_dialog_set_alternative_button_order_valist (GtkDialog *dialog, gint first_response_id, va_list args) { GtkDialogPriv *priv = dialog->priv; GtkWidget *child; gint response_id; gint position; response_id = first_response_id; position = 0; while (response_id != -1) { /* reorder child with response_id to position */ child = dialog_find_button (dialog, response_id); gtk_box_reorder_child (GTK_BOX (priv->action_area), child, position); response_id = va_arg (args, gint); position++; } } /** * gtk_dialog_set_alternative_button_order: * @dialog: a #GtkDialog * @first_response_id: a response id used by one @dialog's buttons * @Varargs: a list of more response ids of @dialog's buttons, terminated by -1 * * Sets an alternative button order. If the * #GtkSettings:gtk-alternative-button-order setting is set to %TRUE, * the dialog buttons are reordered according to the order of the * response ids passed to this function. * * By default, GTK+ dialogs use the button order advocated by the Gnome * Human * Interface Guidelines with the affirmative button at the far * right, and the cancel button left of it. But the builtin GTK+ dialogs * and #GtkMessageDialogs do provide an alternative button order, * which is more suitable on some platforms, e.g. Windows. * * Use this function after adding all the buttons to your dialog, as the * following example shows: * |[ * cancel_button = gtk_dialog_add_button (GTK_DIALOG (dialog), * GTK_STOCK_CANCEL, * GTK_RESPONSE_CANCEL); * * ok_button = gtk_dialog_add_button (GTK_DIALOG (dialog), * GTK_STOCK_OK, * GTK_RESPONSE_OK); * * gtk_widget_grab_default (ok_button); * * help_button = gtk_dialog_add_button (GTK_DIALOG (dialog), * GTK_STOCK_HELP, * GTK_RESPONSE_HELP); * * gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog), * GTK_RESPONSE_OK, * GTK_RESPONSE_CANCEL, * GTK_RESPONSE_HELP, * -1); * ]| * * Since: 2.6 */ void gtk_dialog_set_alternative_button_order (GtkDialog *dialog, gint first_response_id, ...) { GdkScreen *screen; va_list args; g_return_if_fail (GTK_IS_DIALOG (dialog)); screen = gtk_widget_get_screen (GTK_WIDGET (dialog)); if (!gtk_alternative_dialog_button_order (screen)) return; va_start (args, first_response_id); gtk_dialog_set_alternative_button_order_valist (dialog, first_response_id, args); va_end (args); } /** * gtk_dialog_set_alternative_button_order_from_array: * @dialog: a #GtkDialog * @n_params: the number of response ids in @new_order * @new_order: an array of response ids of @dialog's buttons * * Sets an alternative button order. If the * #GtkSettings:gtk-alternative-button-order setting is set to %TRUE, * the dialog buttons are reordered according to the order of the * response ids in @new_order. * * See gtk_dialog_set_alternative_button_order() for more information. * * This function is for use by language bindings. * * Since: 2.6 */ void gtk_dialog_set_alternative_button_order_from_array (GtkDialog *dialog, gint n_params, gint *new_order) { GtkDialogPriv *priv = dialog->priv; GdkScreen *screen; GtkWidget *child; gint position; g_return_if_fail (GTK_IS_DIALOG (dialog)); g_return_if_fail (new_order != NULL); screen = gtk_widget_get_screen (GTK_WIDGET (dialog)); if (!gtk_alternative_dialog_button_order (screen)) return; for (position = 0; position < n_params; position++) { /* reorder child with response_id to position */ child = dialog_find_button (dialog, new_order[position]); gtk_box_reorder_child (GTK_BOX (priv->action_area), child, position); } } typedef struct { gchar *widget_name; gchar *response_id; } ActionWidgetInfo; typedef struct { GtkDialog *dialog; 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 GtkDialog: %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, }; static gboolean gtk_dialog_buildable_custom_tag_start (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, GMarkupParser *parser, gpointer *data) { ActionWidgetsSubParserData *parser_data; if (child) return FALSE; if (strcmp (tagname, "action-widgets") == 0) { parser_data = g_slice_new0 (ActionWidgetsSubParserData); parser_data->dialog = GTK_DIALOG (buildable); parser_data->items = NULL; *parser = attributes_parser; *data = parser_data; return TRUE; } return parent_buildable_iface->custom_tag_start (buildable, builder, child, tagname, parser, data); } static void gtk_dialog_buildable_custom_finished (GtkBuildable *buildable, GtkBuilder *builder, GObject *child, const gchar *tagname, gpointer user_data) { GtkDialog *dialog = GTK_DIALOG (buildable); GtkDialogPriv *priv = dialog->priv; GSList *l; ActionWidgetsSubParserData *parser_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; } 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 (dialog)); 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 (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_dialog_get_action_area: * @dialog: a #GtkDialog * * Returns the action area of @dialog. * * Returns: (transfer none): the action area. * * Since: 2.14 **/ GtkWidget * gtk_dialog_get_action_area (GtkDialog *dialog) { g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL); return dialog->priv->action_area; } /** * gtk_dialog_get_content_area: * @dialog: a #GtkDialog * * Returns the content area of @dialog. * * Returns: (transfer none): the content area #GtkVBox. * * Since: 2.14 **/ GtkWidget * gtk_dialog_get_content_area (GtkDialog *dialog) { g_return_val_if_fail (GTK_IS_DIALOG (dialog), NULL); return dialog->priv->vbox; }