/* -*- Mode: C; c-file-style: "gnu"; tab-width: 8 -*- */ /* GTK - The GIMP Toolkit * gtkfilechooserdialog.c: File selector dialog * Copyright (C) 2003, Red Hat, Inc. * * 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 . */ #include "config.h" #include "deprecated/gtkfilechooserdialog.h" #include "gtkfilechooserprivate.h" #include "deprecated/gtkfilechooserwidget.h" #include "gtkfilechooserwidgetprivate.h" #include "gtkfilechooserutils.h" #include "gtksizerequest.h" #include "gtktypebuiltins.h" #include #include "gtksettings.h" #include "gtktogglebutton.h" #include "gtkheaderbar.h" #include "deprecated/gtkdialogprivate.h" #include "gtklabel.h" #include "gtkfilechooserentry.h" #include "gtkbox.h" #include G_GNUC_BEGIN_IGNORE_DEPRECATIONS /** * GtkFileChooserDialog: * * `GtkFileChooserDialog` is a dialog suitable for use with * “File Open” or “File Save” commands. * * ![An example GtkFileChooserDialog](filechooser.png) * * This widget works by putting a [class@Gtk.FileChooserWidget] * inside a [class@Gtk.Dialog]. It exposes the [iface@Gtk.FileChooser] * interface, so you can use all of the [iface@Gtk.FileChooser] functions * on the file chooser dialog as well as those for [class@Gtk.Dialog]. * * Note that `GtkFileChooserDialog` does not have any methods of its * own. Instead, you should use the functions that work on a * [iface@Gtk.FileChooser]. * * If you want to integrate well with the platform you should use the * [class@Gtk.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: * * ```c * 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: * * ```c * 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 * [method@Gtk.FileChooser.set_current_name]. * * - To save a file under a different name, use %GTK_FILE_CHOOSER_ACTION_SAVE, * and set the existing file with [method@Gtk.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 [method@Gtk.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 [class@Gtk.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 * [ctor@Gtk.FileChooserDialog.new] as follows: * * ```c * 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 [enum@Gtk.ResponseType]. For most dialog * boxes you can use your own custom response codes rather than the * ones in [enum@Gtk.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`. * * Deprecated: 4.10: Use [class@Gtk.FileDialog] instead */ typedef struct _GtkFileChooserDialogPrivate GtkFileChooserDialogPrivate; typedef struct _GtkFileChooserDialogClass GtkFileChooserDialogClass; struct _GtkFileChooserDialog { GtkDialog parent_instance; }; struct _GtkFileChooserDialogClass { GtkDialogClass parent_class; }; struct _GtkFileChooserDialogPrivate { GtkWidget *widget; GtkSizeGroup *buttons; /* for use with GtkFileChooserEmbed */ gboolean response_requested; gboolean search_setup; gboolean has_entry; }; static void gtk_file_chooser_dialog_dispose (GObject *object); static void gtk_file_chooser_dialog_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gtk_file_chooser_dialog_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void gtk_file_chooser_dialog_notify (GObject *object, GParamSpec *pspec); static void gtk_file_chooser_dialog_realize (GtkWidget *widget); static void gtk_file_chooser_dialog_map (GtkWidget *widget); static void gtk_file_chooser_dialog_unmap (GtkWidget *widget); static void gtk_file_chooser_dialog_size_allocate (GtkWidget *widget, int width, int height, int baseline); static void gtk_file_chooser_dialog_activate_response (GtkWidget *widget, const char *action_name, GVariant *parameters); static void response_cb (GtkDialog *dialog, int response_id); static void setup_save_entry (GtkFileChooserDialog *dialog); G_DEFINE_TYPE_WITH_CODE (GtkFileChooserDialog, gtk_file_chooser_dialog, GTK_TYPE_DIALOG, G_ADD_PRIVATE (GtkFileChooserDialog) G_IMPLEMENT_INTERFACE (GTK_TYPE_FILE_CHOOSER, _gtk_file_chooser_delegate_iface_init)) static void gtk_file_chooser_dialog_class_init (GtkFileChooserDialogClass *class) { GObjectClass *gobject_class = G_OBJECT_CLASS (class); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class); gobject_class->dispose = gtk_file_chooser_dialog_dispose; gobject_class->set_property = gtk_file_chooser_dialog_set_property; gobject_class->get_property = gtk_file_chooser_dialog_get_property; gobject_class->notify = gtk_file_chooser_dialog_notify; widget_class->realize = gtk_file_chooser_dialog_realize; widget_class->map = gtk_file_chooser_dialog_map; widget_class->unmap = gtk_file_chooser_dialog_unmap; widget_class->size_allocate = gtk_file_chooser_dialog_size_allocate; _gtk_file_chooser_install_properties (gobject_class); /* Bind class to template */ gtk_widget_class_set_template_from_resource (widget_class, "/org/gtk/libgtk/ui/gtkfilechooserdialog.ui"); gtk_widget_class_bind_template_child_private (widget_class, GtkFileChooserDialog, widget); gtk_widget_class_bind_template_child_private (widget_class, GtkFileChooserDialog, buttons); gtk_widget_class_bind_template_callback (widget_class, response_cb); /** * GtkFileChooserDialog|response.activate: * * Activate the default response of the dialog. */ gtk_widget_class_install_action (widget_class, "response.activate", NULL, gtk_file_chooser_dialog_activate_response); } static void gtk_file_chooser_dialog_init (GtkFileChooserDialog *dialog) { GtkFileChooserDialogPrivate *priv = gtk_file_chooser_dialog_get_instance_private (dialog); priv->response_requested = FALSE; gtk_widget_init_template (GTK_WIDGET (dialog)); gtk_dialog_set_use_header_bar_from_setting (GTK_DIALOG (dialog)); _gtk_file_chooser_set_delegate (GTK_FILE_CHOOSER (dialog), GTK_FILE_CHOOSER (priv->widget)); } static GtkWidget * get_accept_action_widget (GtkDialog *dialog, gboolean sensitive_only) { int response[] = { GTK_RESPONSE_ACCEPT, GTK_RESPONSE_OK, GTK_RESPONSE_YES, GTK_RESPONSE_APPLY }; int i; GtkWidget *widget; for (i = 0; i < G_N_ELEMENTS (response); i++) { widget = gtk_dialog_get_widget_for_response (dialog, response[i]); if (widget) { if (!sensitive_only) return widget; if (gtk_widget_is_sensitive (widget)) return widget; } } return NULL; } static gboolean is_accept_response_id (int response_id) { return (response_id == GTK_RESPONSE_ACCEPT || response_id == GTK_RESPONSE_OK || response_id == GTK_RESPONSE_YES || response_id == GTK_RESPONSE_APPLY); } static void gtk_file_chooser_dialog_activate_response (GtkWidget *widget, const char *action_name, GVariant *parameters) { GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (widget); GtkFileChooserDialogPrivate *priv = gtk_file_chooser_dialog_get_instance_private (dialog); GtkWidget *button; priv->response_requested = TRUE; button = get_accept_action_widget (GTK_DIALOG (dialog), TRUE); if (button) { gtk_widget_activate (button); return; } priv->response_requested = FALSE; } static void gtk_file_chooser_dialog_dispose (GObject *object) { gtk_widget_dispose_template (GTK_WIDGET (object), GTK_TYPE_FILE_CHOOSER_DIALOG); G_OBJECT_CLASS (gtk_file_chooser_dialog_parent_class)->dispose (object); } static void gtk_file_chooser_dialog_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GtkFileChooserDialogPrivate *priv = gtk_file_chooser_dialog_get_instance_private (GTK_FILE_CHOOSER_DIALOG (object)); g_object_set_property (G_OBJECT (priv->widget), pspec->name, value); } static void gtk_file_chooser_dialog_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GtkFileChooserDialogPrivate *priv = gtk_file_chooser_dialog_get_instance_private (GTK_FILE_CHOOSER_DIALOG (object)); g_object_get_property (G_OBJECT (priv->widget), pspec->name, value); } static void gtk_file_chooser_dialog_notify (GObject *object, GParamSpec *pspec) { if (strcmp (pspec->name, "action") == 0) setup_save_entry (GTK_FILE_CHOOSER_DIALOG (object)); if (G_OBJECT_CLASS (gtk_file_chooser_dialog_parent_class)->notify) G_OBJECT_CLASS (gtk_file_chooser_dialog_parent_class)->notify (object, pspec); } static void add_button (GtkWidget *button, gpointer data) { GtkFileChooserDialog *dialog = data; GtkFileChooserDialogPrivate *priv = gtk_file_chooser_dialog_get_instance_private (dialog); if (GTK_IS_BUTTON (button)) gtk_size_group_add_widget (priv->buttons, button); } static gboolean translate_subtitle_to_visible (GBinding *binding, const GValue *from_value, GValue *to_value, gpointer user_data) { const char *subtitle = g_value_get_string (from_value); g_value_set_boolean (to_value, subtitle != NULL); return TRUE; } static void setup_search (GtkFileChooserDialog *dialog) { GtkFileChooserDialogPrivate *priv = gtk_file_chooser_dialog_get_instance_private (dialog); gboolean use_header; GtkWidget *child; if (priv->search_setup) return; priv->search_setup = TRUE; g_object_get (dialog, "use-header-bar", &use_header, NULL); if (use_header) { GtkWidget *button; GtkWidget *header; GtkWidget *box; GtkWidget *label; button = gtk_toggle_button_new (); gtk_widget_set_focus_on_click (button, FALSE); gtk_widget_set_valign (button, GTK_ALIGN_CENTER); gtk_button_set_icon_name (GTK_BUTTON (button), "edit-find-symbolic"); header = gtk_dialog_get_header_bar (GTK_DIALOG (dialog)); gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button); g_object_bind_property (button, "active", priv->widget, "search-mode", G_BINDING_BIDIRECTIONAL); if (!priv->has_entry) { box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0); gtk_widget_set_valign (box, GTK_ALIGN_CENTER); label = gtk_label_new (NULL); gtk_widget_set_halign (label, GTK_ALIGN_CENTER); gtk_label_set_single_line_mode (GTK_LABEL (label), TRUE); gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_END); gtk_label_set_width_chars (GTK_LABEL (label), 5); gtk_widget_add_css_class (label, "title"); gtk_widget_set_parent (label, box); g_object_bind_property (dialog, "title", label, "label", G_BINDING_SYNC_CREATE); label = gtk_label_new (NULL); gtk_widget_set_halign (label, GTK_ALIGN_CENTER); gtk_label_set_single_line_mode (GTK_LABEL (label), TRUE); gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_END); gtk_widget_add_css_class (label, "subtitle"); gtk_widget_set_parent (label, box); g_object_bind_property (priv->widget, "subtitle", label, "label", G_BINDING_SYNC_CREATE); g_object_bind_property_full (priv->widget, "subtitle", label, "visible", G_BINDING_SYNC_CREATE, translate_subtitle_to_visible, NULL, NULL, NULL); gtk_header_bar_set_title_widget (GTK_HEADER_BAR (header), box); } for (child = gtk_widget_get_first_child (header); child != NULL; child = gtk_widget_get_next_sibling (child)) add_button (child, dialog); } } static void setup_save_entry (GtkFileChooserDialog *dialog) { GtkFileChooserDialogPrivate *priv = gtk_file_chooser_dialog_get_instance_private (dialog); gboolean use_header; GtkFileChooserAction action; gboolean need_entry; GtkWidget *header; g_object_get (dialog, "use-header-bar", &use_header, "action", &action, NULL); if (!use_header) return; header = gtk_dialog_get_header_bar (GTK_DIALOG (dialog)); need_entry = action == GTK_FILE_CHOOSER_ACTION_SAVE; if (need_entry && !priv->has_entry) { GtkWidget *box; GtkWidget *label; GtkWidget *entry; box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0); label = gtk_label_new_with_mnemonic (_("_Name")); entry = _gtk_file_chooser_entry_new (FALSE, FALSE); g_object_set (label, "margin-start", 6, "margin-end", 6, NULL); g_object_set (entry, "margin-start", 6, "margin-end", 6, NULL); gtk_label_set_mnemonic_widget (GTK_LABEL (label), entry); gtk_box_append (GTK_BOX (box), label); gtk_box_append (GTK_BOX (box), entry); gtk_header_bar_set_title_widget (GTK_HEADER_BAR (header), box); gtk_file_chooser_widget_set_save_entry (GTK_FILE_CHOOSER_WIDGET (priv->widget), entry); } else if (!need_entry && priv->has_entry) { gtk_header_bar_set_title_widget (GTK_HEADER_BAR (header), NULL); gtk_file_chooser_widget_set_save_entry (GTK_FILE_CHOOSER_WIDGET (priv->widget), NULL); } priv->has_entry = need_entry; } static void ensure_default_response (GtkFileChooserDialog *dialog) { GtkWidget *widget; widget = get_accept_action_widget (GTK_DIALOG (dialog), TRUE); if (widget) gtk_window_set_default_widget (GTK_WINDOW (dialog), widget); } static void gtk_file_chooser_dialog_realize (GtkWidget *widget) { GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (widget); GSettings *settings; int width, height; settings = _gtk_file_chooser_get_settings_for_widget (widget); g_settings_get (settings, SETTINGS_KEY_WINDOW_SIZE, "(ii)", &width, &height); if (width != 0 && height != 0) gtk_window_set_default_size (GTK_WINDOW (dialog), width, height); GTK_WIDGET_CLASS (gtk_file_chooser_dialog_parent_class)->realize (widget); } static void gtk_file_chooser_dialog_map (GtkWidget *widget) { GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (widget); GtkFileChooserDialogPrivate *priv = gtk_file_chooser_dialog_get_instance_private (dialog); setup_search (dialog); setup_save_entry (dialog); ensure_default_response (dialog); gtk_file_chooser_widget_initial_focus (GTK_FILE_CHOOSER_WIDGET (priv->widget)); GTK_WIDGET_CLASS (gtk_file_chooser_dialog_parent_class)->map (widget); } static void save_dialog_geometry (GtkFileChooserDialog *dialog) { GtkWindow *window; GSettings *settings; int old_width, old_height; int width, height; settings = _gtk_file_chooser_get_settings_for_widget (GTK_WIDGET (dialog)); window = GTK_WINDOW (dialog); gtk_window_get_default_size (window, &width, &height); g_settings_get (settings, SETTINGS_KEY_WINDOW_SIZE, "(ii)", &old_width, &old_height); if (old_width != width || old_height != height) g_settings_set (settings, SETTINGS_KEY_WINDOW_SIZE, "(ii)", width, height); g_settings_apply (settings); } static void gtk_file_chooser_dialog_unmap (GtkWidget *widget) { GtkFileChooserDialog *dialog = GTK_FILE_CHOOSER_DIALOG (widget); save_dialog_geometry (dialog); GTK_WIDGET_CLASS (gtk_file_chooser_dialog_parent_class)->unmap (widget); } static void gtk_file_chooser_dialog_size_allocate (GtkWidget *widget, int width, int height, int baseline) { GTK_WIDGET_CLASS (gtk_file_chooser_dialog_parent_class)->size_allocate (widget, width, height, baseline); if (gtk_widget_is_drawable (widget)) save_dialog_geometry (GTK_FILE_CHOOSER_DIALOG (widget)); } /* We do a signal connection here rather than overriding the method in * class_init because GtkDialog::response is a RUN_LAST signal. We want *our* * handler to be run *first*, regardless of whether the user installs response * handlers of his own. */ static void response_cb (GtkDialog *dialog, int response_id) { GtkFileChooserDialogPrivate *priv = gtk_file_chooser_dialog_get_instance_private (GTK_FILE_CHOOSER_DIALOG (dialog)); /* Act only on response IDs we recognize */ if (is_accept_response_id (response_id) && !priv->response_requested && !gtk_file_chooser_widget_should_respond (GTK_FILE_CHOOSER_WIDGET (priv->widget))) { g_signal_stop_emission_by_name (dialog, "response"); } priv->response_requested = FALSE; } static GtkWidget * gtk_file_chooser_dialog_new_valist (const char *title, GtkWindow *parent, GtkFileChooserAction action, const char *first_button_text, va_list varargs) { GtkWidget *result; const char *button_text = first_button_text; int response_id; result = g_object_new (GTK_TYPE_FILE_CHOOSER_DIALOG, "title", title, "action", action, NULL); if (parent) gtk_window_set_transient_for (GTK_WINDOW (result), parent); while (button_text) { response_id = va_arg (varargs, int); gtk_dialog_add_button (GTK_DIALOG (result), button_text, response_id); button_text = va_arg (varargs, const char *); } return result; } /** * gtk_file_chooser_dialog_new: * @title: (nullable): Title of the dialog * @parent: (nullable): Transient parent of the dialog * @action: Open or save mode for the dialog * @first_button_text: (nullable): text to go in the first button * @...: response ID for the first button, then additional (button, id) pairs, ending with %NULL * * Creates a new `GtkFileChooserDialog`. * * This function is analogous to [ctor@Gtk.Dialog.new_with_buttons]. * * Returns: a new `GtkFileChooserDialog` * * Deprecated: 4.10: Use [class@Gtk.FileDialog] instead */ GtkWidget * gtk_file_chooser_dialog_new (const char *title, GtkWindow *parent, GtkFileChooserAction action, const char *first_button_text, ...) { GtkWidget *result; va_list varargs; va_start (varargs, first_button_text); result = gtk_file_chooser_dialog_new_valist (title, parent, action, first_button_text, varargs); va_end (varargs); return result; }