/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 2 -*- */ /* GTK+: gtkfilechooserbutton.c * * Copyright (c) 2004 James M. Cape * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library 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. */ #include #include #include #ifdef HAVE_UNISTD_H #include #endif #include #include "gtkalias.h" #include "gtkintl.h" #include "gtkbutton.h" #include "gtkdnd.h" #include "gtkicontheme.h" #include "gtkiconfactory.h" #include "gtkimage.h" #include "gtklabel.h" #include "gtkstock.h" #include "gtkvseparator.h" #include "gtkfilechooserdialog.h" #include "gtkfilechooserprivate.h" #include "gtkfilechooserutils.h" #include "gtkfilechooserbutton.h" /* **************** * * Private Macros * * **************** */ #define GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE(object) (GTK_FILE_CHOOSER_BUTTON ((object))->priv) #define DEFAULT_FILENAME N_("(None)") #define MIN_LABEL_WIDTH 100 #define ENTRY_BUTTON_SPACING 0 #define FALLBACK_ICON_SIZE 20 #define FALLBACK_ICON_NAME "stock_unknown" /* ********************** * * Private Enumerations * * ********************** */ /* Property IDs */ enum { PROP_0, PROP_DIALOG, PROP_TITLE, PROP_WIDTH_CHARS }; /* ******************** * * Private Structures * * ******************** */ struct _GtkFileChooserButtonPrivate { GtkWidget *dialog; GtkWidget *button; GtkWidget *image; GtkWidget *label; GtkFilePath *old_path; gchar *backend; gulong dialog_file_activated_id; gulong dialog_folder_changed_id; gulong dialog_selection_changed_id; gint icon_size; /* Used for hiding/showing the dialog when the button is hidden */ guint8 active : 1; }; /* ************* * * DnD Support * * ************* */ enum { TEXT_PLAIN, TEXT_URI_LIST }; /* ********************* * * Function Prototypes * * ********************* */ /* GObject Functions */ static GObject *gtk_file_chooser_button_constructor (GType type, guint n_params, GObjectConstructParam *params); static void gtk_file_chooser_button_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec); static void gtk_file_chooser_button_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec); /* GtkObject Functions */ static void gtk_file_chooser_button_destroy (GtkObject *object); /* GtkWidget Functions */ static void gtk_file_chooser_button_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *data, guint info, guint drag_time); static void gtk_file_chooser_button_show_all (GtkWidget *widget); static void gtk_file_chooser_button_hide_all (GtkWidget *widget); static void gtk_file_chooser_button_show (GtkWidget *widget); static void gtk_file_chooser_button_hide (GtkWidget *widget); static gboolean gtk_file_chooser_button_mnemonic_activate (GtkWidget *widget, gboolean group_cycling); static void gtk_file_chooser_button_style_set (GtkWidget *widget, GtkStyle *old_style); static void gtk_file_chooser_button_screen_changed (GtkWidget *widget, GdkScreen *old_screen); /* Child Widget Callbacks */ static void dialog_update_preview_cb (GtkFileChooser *dialog, gpointer user_data); static void dialog_selection_changed_cb (GtkFileChooser *dialog, gpointer user_data); static void dialog_file_activated_cb (GtkFileChooser *dialog, gpointer user_data); static void dialog_current_folder_changed_cb (GtkFileChooser *dialog, gpointer user_data); static void dialog_notify_cb (GObject *dialog, GParamSpec *pspec, gpointer user_data); static gboolean dialog_delete_event_cb (GtkWidget *dialog, GdkEvent *event, gpointer user_data); static void dialog_response_cb (GtkDialog *dialog, gint response, gpointer user_data); static void button_clicked_cb (GtkButton *real_button, gpointer user_data); /* Utility Functions */ static void update_label_and_image (GtkFileChooserButton *button); /* ******************* * * GType Declaration * * ******************* */ G_DEFINE_TYPE_WITH_CODE (GtkFileChooserButton, gtk_file_chooser_button, GTK_TYPE_HBOX, { \ G_IMPLEMENT_INTERFACE (GTK_TYPE_FILE_CHOOSER, _gtk_file_chooser_delegate_iface_init) \ }); /* ***************** * * GType Functions * * ***************** */ static void gtk_file_chooser_button_class_init (GtkFileChooserButtonClass * class) { GObjectClass *gobject_class; GtkObjectClass *gtkobject_class; GtkWidgetClass *widget_class; gobject_class = G_OBJECT_CLASS (class); gtkobject_class = GTK_OBJECT_CLASS (class); widget_class = GTK_WIDGET_CLASS (class); gobject_class->constructor = gtk_file_chooser_button_constructor; gobject_class->set_property = gtk_file_chooser_button_set_property; gobject_class->get_property = gtk_file_chooser_button_get_property; gtkobject_class->destroy = gtk_file_chooser_button_destroy; widget_class->drag_data_received = gtk_file_chooser_button_drag_data_received; widget_class->show_all = gtk_file_chooser_button_show_all; widget_class->hide_all = gtk_file_chooser_button_hide_all; widget_class->show = gtk_file_chooser_button_show; widget_class->hide = gtk_file_chooser_button_hide; widget_class->style_set = gtk_file_chooser_button_style_set; widget_class->screen_changed = gtk_file_chooser_button_screen_changed; widget_class->mnemonic_activate = gtk_file_chooser_button_mnemonic_activate; /** * GtkFileChooserButton:dialog: * * Instance of the #GtkFileChooserDialog associated with the button. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_DIALOG, g_param_spec_object ("dialog", P_("Dialog"), P_("The file chooser dialog to use."), GTK_TYPE_FILE_CHOOSER_DIALOG, (G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY))); /** * GtkFileChooserButton:title: * * Title to put on the #GtkFileChooserDialog associated with the button. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_TITLE, g_param_spec_string ("title", P_("Title"), P_("The title of the file chooser dialog."), _("Select a File"), G_PARAM_READWRITE)); /** * GtkFileChooserButton:width-chars: * * The width of the entry and label inside the button, in characters. * * Since: 2.6 */ g_object_class_install_property (gobject_class, PROP_WIDTH_CHARS, g_param_spec_int ("width-chars", P_("Width In Characters"), P_("The desired width of the button widget, in characters."), -1, G_MAXINT, -1, G_PARAM_READWRITE)); _gtk_file_chooser_install_properties (gobject_class); g_type_class_add_private (class, sizeof (GtkFileChooserButtonPrivate)); } static void gtk_file_chooser_button_init (GtkFileChooserButton *button) { GtkFileChooserButtonPrivate *priv; GtkWidget *box, *image, *sep; GtkTargetList *target_list; priv = G_TYPE_INSTANCE_GET_PRIVATE (button, GTK_TYPE_FILE_CHOOSER_BUTTON, GtkFileChooserButtonPrivate); button->priv = priv; priv->icon_size = FALLBACK_ICON_SIZE; gtk_widget_push_composite_child (); priv->button = gtk_button_new (); g_signal_connect (priv->button, "clicked", G_CALLBACK (button_clicked_cb), button); gtk_container_add (GTK_CONTAINER (button), priv->button); gtk_widget_show (priv->button); box = gtk_hbox_new (FALSE, 4); gtk_container_add (GTK_CONTAINER (priv->button), box); gtk_widget_show (box); priv->image = gtk_image_new (); gtk_box_pack_start (GTK_BOX (box), priv->image, FALSE, FALSE, 0); gtk_widget_show (priv->image); priv->label = gtk_label_new (_(DEFAULT_FILENAME)); gtk_label_set_ellipsize (GTK_LABEL (priv->label), PANGO_ELLIPSIZE_START); gtk_misc_set_alignment (GTK_MISC (priv->label), 0.0, 0.5); gtk_container_add (GTK_CONTAINER (box), priv->label); gtk_widget_show (priv->label); sep = gtk_vseparator_new (); gtk_box_pack_start (GTK_BOX (box), sep, FALSE, FALSE, 0); gtk_widget_show (sep); image = gtk_image_new_from_stock (GTK_STOCK_OPEN, GTK_ICON_SIZE_SMALL_TOOLBAR); gtk_box_pack_start (GTK_BOX (box), image, FALSE, FALSE, 0); gtk_widget_show (image); gtk_widget_pop_composite_child (); /* DnD */ gtk_drag_dest_set (GTK_WIDGET (button), (GTK_DEST_DEFAULT_ALL), NULL, 0, GDK_ACTION_COPY); target_list = gtk_target_list_new (NULL, 0); gtk_target_list_add_uri_targets (target_list, TEXT_URI_LIST); gtk_target_list_add_text_targets (target_list, TEXT_PLAIN); gtk_drag_dest_set_target_list (GTK_WIDGET (button), target_list); gtk_target_list_unref (target_list); } /* ******************* * * GObject Functions * * ******************* */ static GObject * gtk_file_chooser_button_constructor (GType type, guint n_params, GObjectConstructParam *params) { GObject *object; GtkFileChooserButtonPrivate *priv; object = (*G_OBJECT_CLASS (gtk_file_chooser_button_parent_class)->constructor) (type, n_params, params); priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (object); if (!priv->dialog) { if (priv->backend) priv->dialog = gtk_file_chooser_dialog_new_with_backend (NULL, NULL, GTK_FILE_CHOOSER_ACTION_OPEN, priv->backend, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL); else priv->dialog = gtk_file_chooser_dialog_new (NULL, NULL, GTK_FILE_CHOOSER_ACTION_OPEN, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL); gtk_dialog_set_default_response (GTK_DIALOG (priv->dialog), GTK_RESPONSE_ACCEPT); gtk_dialog_set_alternative_button_order (GTK_DIALOG (priv->dialog), GTK_RESPONSE_ACCEPT, GTK_RESPONSE_CANCEL, -1); } g_free (priv->backend); priv->backend = NULL; g_signal_connect (priv->dialog, "delete-event", G_CALLBACK (dialog_delete_event_cb), object); g_signal_connect (priv->dialog, "response", G_CALLBACK (dialog_response_cb), object); /* This is used, instead of the standard delegate, to ensure that signals are only * delegated when the OK button is pressed. */ g_object_set_qdata (object, GTK_FILE_CHOOSER_DELEGATE_QUARK, priv->dialog); priv->dialog_folder_changed_id = g_signal_connect (priv->dialog, "current-folder-changed", G_CALLBACK (dialog_current_folder_changed_cb), object); priv->dialog_file_activated_id = g_signal_connect (priv->dialog, "file-activated", G_CALLBACK (dialog_file_activated_cb), object); priv->dialog_selection_changed_id = g_signal_connect (priv->dialog, "selection-changed", G_CALLBACK (dialog_selection_changed_cb), object); g_signal_connect (priv->dialog, "update-preview", G_CALLBACK (dialog_update_preview_cb), object); g_signal_connect (priv->dialog, "notify", G_CALLBACK (dialog_notify_cb), object); g_object_add_weak_pointer (G_OBJECT (priv->dialog), (gpointer *) (&priv->dialog)); return object; } static void gtk_file_chooser_button_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec) { GtkFileChooserButtonPrivate *priv; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (object); switch (param_id) { case PROP_DIALOG: /* Construct-only */ priv->dialog = g_value_get_object (value); break; case PROP_WIDTH_CHARS: gtk_file_chooser_button_set_width_chars (GTK_FILE_CHOOSER_BUTTON (object), g_value_get_int (value)); break; case GTK_FILE_CHOOSER_PROP_ACTION: switch (g_value_get_enum (value)) { case GTK_FILE_CHOOSER_ACTION_CREATE_FOLDER: case GTK_FILE_CHOOSER_ACTION_SAVE: { GEnumClass *eclass; GEnumValue *eval; eclass = g_type_class_peek (GTK_TYPE_FILE_CHOOSER_ACTION); eval = g_enum_get_value (eclass, g_value_get_enum (value)); g_warning ("%s: Choosers of type `%s' do not support `%s'.", G_STRFUNC, G_OBJECT_TYPE_NAME (object), eval->value_name); g_value_set_enum ((GValue *) value, GTK_FILE_CHOOSER_ACTION_OPEN); } break; } g_object_set_property (G_OBJECT (priv->dialog), pspec->name, value); update_label_and_image (GTK_FILE_CHOOSER_BUTTON (object)); break; case PROP_TITLE: case GTK_FILE_CHOOSER_PROP_FILTER: case GTK_FILE_CHOOSER_PROP_LOCAL_ONLY: case GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET: case GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET_ACTIVE: case GTK_FILE_CHOOSER_PROP_USE_PREVIEW_LABEL: case GTK_FILE_CHOOSER_PROP_EXTRA_WIDGET: case GTK_FILE_CHOOSER_PROP_SHOW_HIDDEN: g_object_set_property (G_OBJECT (priv->dialog), pspec->name, value); break; case GTK_FILE_CHOOSER_PROP_FILE_SYSTEM_BACKEND: /* Construct-only */ priv->backend = g_value_dup_string (value); break; case GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE: g_warning ("%s: Choosers of type `%s` do not support selecting multiple files.", G_STRFUNC, G_OBJECT_TYPE_NAME (object)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void gtk_file_chooser_button_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec) { GtkFileChooserButtonPrivate *priv; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (object); switch (param_id) { case PROP_WIDTH_CHARS: g_value_set_int (value, gtk_label_get_width_chars (GTK_LABEL (priv->label))); break; case PROP_TITLE: case GTK_FILE_CHOOSER_PROP_ACTION: case GTK_FILE_CHOOSER_PROP_FILE_SYSTEM_BACKEND: case GTK_FILE_CHOOSER_PROP_FILTER: case GTK_FILE_CHOOSER_PROP_LOCAL_ONLY: case GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET: case GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET_ACTIVE: case GTK_FILE_CHOOSER_PROP_USE_PREVIEW_LABEL: case GTK_FILE_CHOOSER_PROP_EXTRA_WIDGET: case GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE: case GTK_FILE_CHOOSER_PROP_SHOW_HIDDEN: g_object_get_property (G_OBJECT (priv->dialog), pspec->name, value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } /* ********************* * * GtkObject Functions * * ********************* */ static void gtk_file_chooser_button_destroy (GtkObject * object) { GtkFileChooserButtonPrivate *priv; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (object); if (priv->dialog != NULL) gtk_widget_destroy (priv->dialog); if (priv->old_path) gtk_file_path_free (priv->old_path); if (GTK_OBJECT_CLASS (gtk_file_chooser_button_parent_class)->destroy != NULL) (*GTK_OBJECT_CLASS (gtk_file_chooser_button_parent_class)->destroy) (object); } /* ********************* * * GtkWidget Functions * * ********************* */ static void gtk_file_chooser_button_drag_data_received (GtkWidget *widget, GdkDragContext *context, gint x, gint y, GtkSelectionData *data, guint info, guint drag_time) { GtkFileChooserButtonPrivate *priv; GtkFileSystem *fs; GtkFilePath *path; gchar *text; if (GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->drag_data_received != NULL) (*GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->drag_data_received) (widget, context, x, y, data, info, drag_time); if (widget == NULL || context == NULL || data == NULL || data->length < 0) return; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (widget); fs = _gtk_file_chooser_get_file_system (GTK_FILE_CHOOSER (priv->dialog)); switch (info) { case TEXT_URI_LIST: { gchar **uris; GtkFilePath *base_path; guint i; gboolean selected; uris = gtk_selection_data_get_uris (data); if (uris == NULL) break; selected = FALSE; for (i = 0; !selected && uris[i] != NULL; i++) { path = gtk_file_system_uri_to_path (fs, uris[i]); base_path = NULL; if (path != NULL && gtk_file_system_get_parent (fs, path, &base_path, NULL)) { GtkFileFolder *folder; GtkFileInfo *info; folder = gtk_file_system_get_folder (fs, base_path, GTK_FILE_INFO_IS_FOLDER, NULL); info = gtk_file_folder_get_info (folder, path, NULL); if (info != NULL) { GtkFileChooserAction action; g_object_get (priv->dialog, "action", &action, NULL); selected = (((action == GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER && gtk_file_info_get_is_folder (info)) || (action == GTK_FILE_CHOOSER_ACTION_OPEN && !gtk_file_info_get_is_folder (info))) && _gtk_file_chooser_select_path (GTK_FILE_CHOOSER (priv->dialog), path, NULL)); gtk_file_info_free (info); } else selected = FALSE; gtk_file_path_free (base_path); } gtk_file_path_free (path); } g_strfreev (uris); } break; case TEXT_PLAIN: text = gtk_selection_data_get_text (data); path = gtk_file_path_new_steal (text); _gtk_file_chooser_select_path (GTK_FILE_CHOOSER (priv->dialog), path, NULL); gtk_file_path_free (path); break; default: break; } gtk_drag_finish (context, TRUE, FALSE, drag_time); } static void gtk_file_chooser_button_show_all (GtkWidget *widget) { gtk_widget_show (widget); } static void gtk_file_chooser_button_hide_all (GtkWidget *widget) { gtk_widget_hide (widget); } static void gtk_file_chooser_button_show (GtkWidget *widget) { GtkFileChooserButtonPrivate *priv; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (widget); if (GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->show) (*GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->show) (widget); if (priv->active) gtk_widget_show (priv->dialog); } static void gtk_file_chooser_button_hide (GtkWidget *widget) { GtkFileChooserButtonPrivate *priv; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (widget); gtk_widget_hide (priv->dialog); if (GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->hide) (*GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->hide) (widget); } static gboolean gtk_file_chooser_button_mnemonic_activate (GtkWidget *widget, gboolean group_cycling) { GtkFileChooserButtonPrivate *priv; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (widget); gtk_widget_grab_focus (priv->button); return TRUE; } /* Changes the icons wherever it is needed */ static void change_icon_theme (GtkFileChooserButton *button) { GtkSettings *settings; gint width, height; settings = gtk_settings_get_for_screen (gtk_widget_get_screen (GTK_WIDGET (button))); if (gtk_icon_size_lookup_for_settings (settings, GTK_ICON_SIZE_SMALL_TOOLBAR, &width, &height)) button->priv->icon_size = MAX (width, height); else button->priv->icon_size = FALLBACK_ICON_SIZE; update_label_and_image (button); } static void gtk_file_chooser_button_style_set (GtkWidget *widget, GtkStyle *old_style) { if (GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->style_set) (*GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->style_set) (widget, old_style); if (gtk_widget_has_screen (widget)) change_icon_theme (GTK_FILE_CHOOSER_BUTTON (widget)); } static void gtk_file_chooser_button_screen_changed (GtkWidget *widget, GdkScreen *old_screen) { GtkFileChooserButton *button; button = GTK_FILE_CHOOSER_BUTTON (widget); if (GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->screen_changed) (*GTK_WIDGET_CLASS (gtk_file_chooser_button_parent_class)->screen_changed) (widget, old_screen); change_icon_theme (button); } /* ************************************************************************** * * Public API * * ************************************************************************** */ /** * gtk_file_chooser_button_new: * @title: the title of the browse dialog. * * Creates a new file-selecting button widget. * * Returns: a new button widget. * * Since: 2.6 **/ GtkWidget * gtk_file_chooser_button_new (const gchar *title) { return g_object_new (GTK_TYPE_FILE_CHOOSER_BUTTON, "title", title, NULL); } /** * gtk_file_chooser_button_new_with_backend: * @title: the title of the browse dialog. * @backend: the name of the #GtkFileSystem backend to use. * * Creates a new file-selecting button widget using @backend. * * Returns: a new button widget. * * Since: 2.6 **/ GtkWidget * gtk_file_chooser_button_new_with_backend (const gchar *title, const gchar *backend) { return g_object_new (GTK_TYPE_FILE_CHOOSER_BUTTON, "title", title, "file-system-backend", backend, NULL); } /** * gtk_file_chooser_button_new_with_dialog: * @dialog: the #GtkDialog widget to use. * * Creates a #GtkFileChooserButton widget which uses @dialog as it's * file-picking window. Note that @dialog must be a #GtkFileChooserDialog (or * subclass). * * Returns: a new button widget. * * Since: 2.6 **/ GtkWidget * gtk_file_chooser_button_new_with_dialog (GtkWidget *dialog) { g_return_val_if_fail (GTK_IS_FILE_CHOOSER_DIALOG (dialog), NULL); return g_object_new (GTK_TYPE_FILE_CHOOSER_BUTTON, "dialog", dialog, NULL); } /** * gtk_file_chooser_button_set_title: * @button: the button widget to modify. * @title: the new browse dialog title. * * Modifies the @title of the browse dialog used by @button. * * Since: 2.6 **/ void gtk_file_chooser_button_set_title (GtkFileChooserButton *button, const gchar *title) { g_return_if_fail (GTK_IS_FILE_CHOOSER_BUTTON (button)); gtk_window_set_title (GTK_WINDOW (button->priv->dialog), title); g_object_notify (G_OBJECT (button), "title"); } /** * gtk_file_chooser_button_get_title: * @button: the button widget to examine. * * Retrieves the title of the browse dialog used by @button. The returned value * should not be modified or freed. * * Returns: a pointer to the browse dialog's title. * * Since: 2.6 **/ G_CONST_RETURN gchar * gtk_file_chooser_button_get_title (GtkFileChooserButton *button) { g_return_val_if_fail (GTK_IS_FILE_CHOOSER_BUTTON (button), NULL); return gtk_window_get_title (GTK_WINDOW (button->priv->dialog)); } /** * gtk_file_chooser_button_get_width_chars: * @button: the button widget to examine. * * Retrieves the width in characters of the @button widget's entry and/or label. * * Returns: an integer width (in characters) that the button will use to size itself. * * Since: 2.6 **/ gint gtk_file_chooser_button_get_width_chars (GtkFileChooserButton *button) { g_return_val_if_fail (GTK_IS_FILE_CHOOSER_BUTTON (button), -1); return gtk_label_get_width_chars (GTK_LABEL (button->priv->label)); } /** * gtk_file_chooser_button_set_width_chars: * @button: the button widget to examine. * @n_chars: the new width, in chracters. * * Sets the width (in characters) that @button will use to @n_chars. * * Since: 2.6 **/ void gtk_file_chooser_button_set_width_chars (GtkFileChooserButton *button, gint n_chars) { g_return_if_fail (GTK_IS_FILE_CHOOSER_BUTTON (button)); gtk_label_set_width_chars (GTK_LABEL (button->priv->label), n_chars); g_object_notify (G_OBJECT (button), "width-chars"); } /* ******************* * * Utility Functions * * ******************* */ static inline GtkIconTheme * get_icon_theme (GtkWidget *widget) { if (gtk_widget_has_screen (widget)) return gtk_icon_theme_get_for_screen (gtk_widget_get_screen (widget)); return gtk_icon_theme_get_default (); } static void update_label_and_image (GtkFileChooserButton *button) { GtkFileChooserButtonPrivate *priv; GdkPixbuf *pixbuf; gchar *label_text; GSList *paths; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (button); paths = _gtk_file_chooser_get_paths (GTK_FILE_CHOOSER (button->priv->dialog)); label_text = NULL; pixbuf = NULL; if (paths) { GtkFileSystem *fs; GtkFilePath *path, *parent_path; GtkFileSystemVolume *volume; GtkFileFolder *folder; path = paths->data; fs = _gtk_file_chooser_get_file_system (GTK_FILE_CHOOSER (priv->dialog)); volume = gtk_file_system_get_volume_for_path (fs, path); if (volume) { GtkFilePath *base_path; base_path = gtk_file_system_volume_get_base_path (fs, volume); if (base_path && gtk_file_path_compare (base_path, path) == 0) { label_text = gtk_file_system_volume_get_display_name (fs, volume); pixbuf = gtk_file_system_volume_render_icon (fs, volume, GTK_WIDGET (button), priv->icon_size, NULL); } if (base_path) gtk_file_path_free (base_path); gtk_file_system_volume_free (fs, volume); if (label_text) goto out; } if (!pixbuf) pixbuf = gtk_file_system_render_icon (fs, path, GTK_WIDGET (button), priv->icon_size, NULL); parent_path = NULL; gtk_file_system_get_parent (fs, path, &parent_path, NULL); folder = gtk_file_system_get_folder (fs, parent_path ? parent_path : path, GTK_FILE_INFO_DISPLAY_NAME, NULL); if (folder) { GtkFileInfo *info; info = gtk_file_folder_get_info (folder, path, NULL); g_object_unref (folder); if (info) { label_text = g_strdup (gtk_file_info_get_display_name (info)); gtk_file_info_free (info); } } out: gtk_file_paths_free (paths); } if (label_text) { gtk_label_set_text (GTK_LABEL (priv->label), label_text); g_free (label_text); } else gtk_label_set_text (GTK_LABEL (priv->label), _(DEFAULT_FILENAME)); if (!pixbuf) pixbuf = gtk_icon_theme_load_icon (get_icon_theme (GTK_WIDGET (button)), FALLBACK_ICON_NAME, priv->icon_size, 0, NULL); gtk_image_set_from_pixbuf (GTK_IMAGE (priv->image), pixbuf); if (pixbuf) g_object_unref (pixbuf); } /* ************************ * * Child-Widget Callbacks * * ************************ */ static void dialog_current_folder_changed_cb (GtkFileChooser *dialog, gpointer user_data) { g_signal_emit_by_name (user_data, "current-folder-changed"); } static void dialog_file_activated_cb (GtkFileChooser *dialog, gpointer user_data) { g_signal_emit_by_name (user_data, "file-activated"); } static void dialog_selection_changed_cb (GtkFileChooser *dialog, gpointer user_data) { update_label_and_image (user_data); g_signal_emit_by_name (user_data, "selection-changed"); } static void dialog_update_preview_cb (GtkFileChooser *dialog, gpointer user_data) { g_signal_emit_by_name (user_data, "update-preview"); } static void dialog_notify_cb (GObject *dialog, GParamSpec *pspec, gpointer user_data) { gpointer iface; iface = g_type_interface_peek (g_type_class_peek (G_OBJECT_TYPE (dialog)), GTK_TYPE_FILE_CHOOSER); if (g_object_interface_find_property (iface, pspec->name)) g_object_notify (user_data, pspec->name); } static gboolean dialog_delete_event_cb (GtkWidget *dialog, GdkEvent *event, gpointer user_data) { g_signal_emit_by_name (dialog, "response", GTK_RESPONSE_DELETE_EVENT); return TRUE; } static void dialog_response_cb (GtkDialog *dialog, gint response, gpointer user_data) { GtkFileChooserButtonPrivate *priv; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (user_data); if (response == GTK_RESPONSE_ACCEPT) { g_signal_emit_by_name (user_data, "current-folder-changed"); g_signal_emit_by_name (user_data, "selection-changed"); } else if (priv->old_path) { switch (gtk_file_chooser_get_action (GTK_FILE_CHOOSER (dialog))) { case GTK_FILE_CHOOSER_ACTION_OPEN: _gtk_file_chooser_select_path (GTK_FILE_CHOOSER (dialog), priv->old_path, NULL); break; case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER: _gtk_file_chooser_set_current_folder_path (GTK_FILE_CHOOSER (dialog), priv->old_path, NULL); break; default: g_assert_not_reached (); break; } } if (priv->old_path) { gtk_file_path_free (priv->old_path); priv->old_path = NULL; } update_label_and_image (user_data); g_signal_handler_unblock (priv->dialog, priv->dialog_folder_changed_id); g_signal_handler_unblock (priv->dialog, priv->dialog_file_activated_id); g_signal_handler_unblock (priv->dialog, priv->dialog_selection_changed_id); priv->active = FALSE; gtk_widget_hide (priv->dialog); } static void button_clicked_cb (GtkButton *real_button, gpointer user_data) { GtkFileChooserButtonPrivate *priv; priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (user_data); if (!priv->active) { GSList *paths; /* Setup the dialog parent to be chooser button's toplevel, and be modal as needed. */ if (!GTK_WIDGET_VISIBLE (priv->dialog)) { GtkWidget *toplevel; toplevel = gtk_widget_get_toplevel (user_data); if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_IS_WINDOW (toplevel)) { if (GTK_WINDOW (toplevel) != gtk_window_get_transient_for (GTK_WINDOW (priv->dialog))) gtk_window_set_transient_for (GTK_WINDOW (priv->dialog), GTK_WINDOW (toplevel)); gtk_window_set_modal (GTK_WINDOW (priv->dialog), gtk_window_get_modal (GTK_WINDOW (toplevel))); } } g_signal_handler_block (priv->dialog, priv->dialog_folder_changed_id); g_signal_handler_block (priv->dialog, priv->dialog_file_activated_id); g_signal_handler_block (priv->dialog, priv->dialog_selection_changed_id); paths = _gtk_file_chooser_get_paths (GTK_FILE_CHOOSER (priv->dialog)); if (paths) { if (paths->data) priv->old_path = gtk_file_path_copy (paths->data); gtk_file_paths_free (paths); } priv->active = TRUE; } gtk_window_present (GTK_WINDOW (priv->dialog)); }