Class: Gtk::FileChooserDialog
Overview
GtkFileChooserDialog is a dialog suitable for use with
“File Open” or “File Save” commands.
This widget works by putting a [classGtk.FileChooserWidget] inside a [classGtk.Dialog]. It exposes the [ifaceGtk.FileChooser] interface, so you can use all of the [ifaceGtk.FileChooser] functions on the file chooser dialog as well as those for [classGtk.Dialog].
Note that GtkFileChooserDialog does not have any methods of its
own. Instead, you should use the functions that work on a
[ifaceGtk.FileChooser].
If you want to integrate well with the platform you should use the
[classGtk.FileChooserNative] API, which will use a platform-specific
dialog if available and fall back to GtkFileChooserDialog
otherwise.
Typical usage
In the simplest of cases, you can the following code to use
GtkFileChooserDialog to select a file for opening:
static void
on_open_response (GtkDialog *dialog,
int response)
{
if (response == GTK_RESPONSE_ACCEPT)
{
GtkFileChooser *chooser = GTK_FILE_CHOOSER (dialog);
g_autoptr(GFile) file = gtk_file_chooser_get_file (chooser);
open_file (file);
}
gtk_window_destroy (GTK_WINDOW (dialog));
}
// ...
GtkWidget *dialog;
GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_OPEN;
dialog = gtk_file_chooser_dialog_new ("Open File",
parent_window,
action,
_("_Cancel"),
GTK_RESPONSE_CANCEL,
_("_Open"),
GTK_RESPONSE_ACCEPT,
NULL);
gtk_window_present (GTK_WINDOW (dialog));
g_signal_connect (dialog, "response",
G_CALLBACK (on_open_response),
NULL);
To use a dialog for saving, you can use this:
static void
on_save_response (GtkDialog *dialog,
int response)
{
if (response == GTK_RESPONSE_ACCEPT)
{
GtkFileChooser *chooser = GTK_FILE_CHOOSER (dialog);
g_autoptr(GFile) file = gtk_file_chooser_get_file (chooser);
save_to_file (file);
}
gtk_window_destroy (GTK_WINDOW (dialog));
}
// ...
GtkWidget *dialog;
GtkFileChooser *chooser;
GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_SAVE;
dialog = gtk_file_chooser_dialog_new ("Save File",
parent_window,
action,
_("_Cancel"),
GTK_RESPONSE_CANCEL,
_("_Save"),
GTK_RESPONSE_ACCEPT,
NULL);
chooser = GTK_FILE_CHOOSER (dialog);
if (user_edited_a_new_document)
gtk_file_chooser_set_current_name (chooser, _("Untitled document"));
else
gtk_file_chooser_set_file (chooser, existing_filename);
gtk_window_present (GTK_WINDOW (dialog));
g_signal_connect (dialog, "response",
G_CALLBACK (on_save_response),
NULL);
Setting up a file chooser dialog
There are various cases in which you may need to use a GtkFileChooserDialog:
-
To select a file for opening, use %GTK_FILE_CHOOSER_ACTION_OPEN.
-
To save a file for the first time, use %GTK_FILE_CHOOSER_ACTION_SAVE, and suggest a name such as “Untitled” with [methodGtk.FileChooser.set_current_name].
-
To save a file under a different name, use %GTK_FILE_CHOOSER_ACTION_SAVE, and set the existing file with [methodGtk.FileChooser.set_file].
-
To choose a folder instead of a filem use %GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER.
In general, you should only cause the file chooser to show a specific folder when it is appropriate to use [methodGtk.FileChooser.set_file], i.e. when you are doing a “Save As” command and you already have a file saved somewhere.
Response Codes
GtkFileChooserDialog inherits from [classGtk.Dialog], so buttons that
go in its action area have response codes such as %GTK_RESPONSE_ACCEPT and
%GTK_RESPONSE_CANCEL. For example, you could call
[ctorGtk.FileChooserDialog.new] as follows:
GtkWidget *dialog;
GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_OPEN;
dialog = gtk_file_chooser_dialog_new ("Open File",
parent_window,
action,
_("_Cancel"),
GTK_RESPONSE_CANCEL,
_("_Open"),
GTK_RESPONSE_ACCEPT,
NULL);
This will create buttons for “Cancel” and “Open” that use predefined
response identifiers from [enumGtk.ResponseType]. For most dialog
boxes you can use your own custom response codes rather than the
ones in [enumGtk.ResponseType], but GtkFileChooserDialog assumes that
its “accept”-type action, e.g. an “Open” or “Save” button,
will have one of the following response codes:
- %GTK_RESPONSE_ACCEPT
- %GTK_RESPONSE_OK
- %GTK_RESPONSE_YES
- %GTK_RESPONSE_APPLY
This is because GtkFileChooserDialog must intercept responses and switch
to folders if appropriate, rather than letting the dialog terminate — the
implementation uses these known response codes to know which responses can
be blocked if appropriate.
To summarize, make sure you use a predefined response code
when you use GtkFileChooserDialog to ensure proper operation.
CSS nodes
GtkFileChooserDialog has a single CSS node with the name window and style
class .filechooser.
Instance Method Summary collapse
-
#initialize(title, parent, action, first_button_text, array) ⇒ Gtk::Widget
constructor
Creates a new
GtkFileChooserDialog.
Methods inherited from Dialog
#add_action_widget, #add_button, #add_buttons, #content_area, #default_response=, #get_response_for_widget, #get_widget_for_response, #header_bar, #response, #set_response_sensitive, #use_header_bar, #use_header_bar=
Methods inherited from Window
#application, #application=, auto_startup_notification=, #child, #child=, #close, #decorated, #decorated=, #decorated?, #default_height, #default_height=, default_icon_name, default_icon_name=, #default_widget, #default_widget=, #default_width, #default_width=, #deletable, #deletable=, #deletable?, #destroy, #destroy_with_parent, #destroy_with_parent=, #destroy_with_parent?, #display, #display=, #focus, #focus=, #focus_visible, #focus_visible=, #focus_visible?, #focus_widget, #focus_widget=, #fullscreen, #fullscreen_on_monitor, #fullscreened=, #fullscreened?, #get_default_size, #group, #handle_menubar_accel, #handle_menubar_accel=, #handle_menubar_accel?, #has_group, #hide_on_close, #hide_on_close=, #hide_on_close?, #icon_name, #icon_name=, interactive_debugging=, #is_active, #is_active=, #is_active?, #is_fullscreen, #is_maximized, #is_suspended, list_toplevels, #maximize, #maximized=, #maximized?, #minimize, #mnemonics_visible, #mnemonics_visible=, #mnemonics_visible?, #modal, #modal=, #modal?, #present, #present_with_time, #resizable, #resizable=, #resizable?, #set_default_size, #startup_id=, #suspended=, #suspended?, #title, #title=, #titlebar, #titlebar=, toplevels, #transient_for, #transient_for=, #unfullscreen, #unmaximize, #unminimize
Methods inherited from Widget
#accessible_role, #accessible_role=, #action_set_enabled, #activate, #activate_action, #activate_action_variant, #activate_default, #activate_signal, #activate_signal=, #activate_signal_from_name=, #add_binding, #add_binding_action, #add_binding_signal, #add_controller, #add_css_class, #add_mnemonic_label, #add_shortcut, #add_tick_callback, #allocate, #allocated_baseline, #allocated_height, #allocated_width, #baseline, #bind_template_callback_full, #bind_template_child_full, #can_focus, #can_focus=, #can_focus?, #can_target, #can_target=, #can_target?, #child_focus, #child_visible, #child_visible=, #clipboard, #compute_bounds, #compute_expand, #compute_point, #compute_transform, #contains, #create_pango_context, #create_pango_layout, #css_classes, #css_classes=, #css_name, #css_name=, #cursor, #cursor=, #cursor_from_name=, default_direction, default_direction=, #direction, #direction=, #display, #dispose_template, #drag_check_threshold, #error_bell, #first_child, #focus_child, #focus_child=, #focus_on_click, #focus_on_click=, #focus_on_click?, #focusable, #focusable=, #focusable?, #font_map, #font_map=, #font_options, #font_options=, #frame_clock, #get_allocation, #get_ancestor, #get_color, #get_preferred_size, #get_size, #get_size_request, #get_template_child, #grab_focus, #halign, #halign=, #has_css_class, #has_default, #has_default=, #has_default?, #has_focus, #has_focus=, #has_focus?, #has_tooltip, #has_tooltip=, #has_tooltip?, #has_visible_focus, #height, #height_request, #height_request=, #hexpand, #hexpand=, #hexpand?, #hexpand_set, #hexpand_set=, #hexpand_set?, #hide, #in_destruction, #init_template, #insert_action_group, #insert_after, #insert_before, #install_action, #install_property_action, #is_ancestor, #is_drawable, #is_focus, #is_sensitive, #is_visible, #keynav_failed, #last_child, #layout_manager, #layout_manager=, #layout_manager_type, #layout_manager_type=, #list_mnemonic_labels, #map, #mapped, #margin_bottom, #margin_bottom=, #margin_end, #margin_end=, #margin_start, #margin_start=, #margin_top, #margin_top=, #measure, #mnemonic_activate, #name, #name=, #native, #next_sibling, #observe_children, #observe_controllers, #opacity, #opacity=, #overflow, #overflow=, #pango_context, #parent, #parent=, #pick, #prev_sibling, #primary_clipboard, #query_action, #queue_allocate, #queue_draw, #queue_resize, #realize, #realized, #receives_default, #receives_default=, #receives_default?, #remove_controller, #remove_css_class, #remove_mnemonic_label, #remove_tick_callback, #request_mode, #root, #root=, #scale_factor, #scale_factor=, #sensitive, #sensitive=, #sensitive?, #set_size_request, #set_state_flags, #settings, #should_layout, #show, #size_allocate, #snapshot_child, #state_flags, #style_context, #template=, #template_from_resource=, #template_scope=, #tooltip_markup, #tooltip_markup=, #tooltip_text, #tooltip_text=, #translate_coordinates, #trigger_tooltip_query, #unmap, #unparent, #unrealize, #unset_state_flags, #valign, #valign=, #vexpand, #vexpand=, #vexpand?, #vexpand_set, #vexpand_set=, #vexpand_set?, #visible, #visible=, #visible?, #width, #width_request, #width_request=
Constructor Details
#initialize(title, parent, action, first_button_text, array) ⇒ Gtk::Widget
Creates a new GtkFileChooserDialog.
This function is analogous to [ctorGtk.Dialog.new_with_buttons].