gtkfilechooserbutton.c 62.2 KB
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 2 -*- */

/* GTK+: gtkfilechooserbutton.c
 * 
 * Copyright (c) 2004 James M. Cape <jcape@ignore-your.tv>
 *
 * 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.
 */

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#include <config.h>
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#include <sys/types.h>
#include <sys/stat.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <string.h>

#include "gtkalias.h"
#include "gtkintl.h"
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#include "gtkbutton.h"
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#include "gtkcelllayout.h"
#include "gtkcellrendererpixbuf.h"
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#include "gtkcombobox.h"
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#include "gtkdnd.h"
#include "gtkicontheme.h"
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#include "gtkiconfactory.h"
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#include "gtkimage.h"
#include "gtklabel.h"
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#include "gtkliststore.h"
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#include "gtkstock.h"
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#include "gtktreemodelfilter.h"
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#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)

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#define HOME_DISPLAY_NAME	N_("Home")
#define DESKTOP_DISPLAY_NAME	N_("Desktop")
#define FALLBACK_DISPLAY_NAME	N_("(None)")
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#define FALLBACK_ICON_NAME	"stock_unknown"
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#define FALLBACK_ICON_SIZE	20

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/* ********************** *
 *  Private Enumerations  *
 * ********************** */

/* Property IDs */
enum
{
  PROP_0,

  PROP_DIALOG,
  PROP_TITLE,
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  PROP_WIDTH_CHARS
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};

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/* TreeModel Columns */
enum
{
  ICON_COLUMN,
  DISPLAY_NAME_COLUMN,
  TYPE_COLUMN,
  DATA_COLUMN,
  NUM_COLUMNS
};

/* TreeModel Row Types */
typedef enum
{
  ROW_TYPE_SPECIAL,
  ROW_TYPE_VOLUME,
  ROW_TYPE_SHORTCUT,
  ROW_TYPE_BOOKMARK_SEPARATOR,
  ROW_TYPE_BOOKMARK,
  ROW_TYPE_CURRENT_FOLDER_SEPARATOR,
  ROW_TYPE_CURRENT_FOLDER,
  ROW_TYPE_OTHER_SEPARATOR,
  ROW_TYPE_OTHER,

  ROW_TYPE_INVALID = -1
}
RowType;

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/* ******************** *
 *  Private Structures  *
 * ******************** */

struct _GtkFileChooserButtonPrivate
{
  GtkWidget *dialog;
  GtkWidget *button;
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  GtkWidget *image;
  GtkWidget *label;
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  GtkWidget *combo_box;
  GtkCellRenderer *icon_cell;
  GtkCellRenderer *name_cell;

  GtkTreeModel *model;
  GtkTreeModel *filter_model;
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  gchar *backend;
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  GtkFileSystem *fs;
  GtkFilePath *old_path;

  gulong combo_box_changed_id;
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  gulong dialog_file_activated_id;
  gulong dialog_folder_changed_id;
  gulong dialog_selection_changed_id;
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  gulong fs_volumes_changed_id;
  gulong fs_bookmarks_changed_id;

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  gint icon_size;
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  guint8 n_special;
  guint8 n_volumes;
  guint8 n_shortcuts;
  guint8 n_bookmarks;
  guint8 has_bookmark_separator       : 1;
  guint8 has_current_folder_separator : 1;
  guint8 has_current_folder           : 1;
  guint8 has_other_separator          : 1;

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  /* Used for hiding/showing the dialog when the button is hidden */
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  guint8 active                       : 1;
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};


/* ************* *
 *  DnD Support  *
 * ************* */

enum
{
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  TEXT_PLAIN,
  TEXT_URI_LIST
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};

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/* ********************* *
 *  Function Prototypes  *
 * ********************* */

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/* GtkFileChooserIface Functions */
static void     gtk_file_chooser_button_file_chooser_iface_init (GtkFileChooserIface *iface);
static gboolean gtk_file_chooser_button_add_shortcut_folder     (GtkFileChooser      *chooser,
								 const GtkFilePath   *path,
								 GError             **error);
static gboolean gtk_file_chooser_button_remove_shortcut_folder  (GtkFileChooser      *chooser,
								 const GtkFilePath   *path,
								 GError             **error);

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/* GObject Functions */
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static GObject *gtk_file_chooser_button_constructor        (GType             type,
							    guint             n_params,
							    GObjectConstructParam *params);
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static void     gtk_file_chooser_button_set_property       (GObject          *object,
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							    guint             param_id,
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							    const GValue     *value,
							    GParamSpec       *pspec);
static void     gtk_file_chooser_button_get_property       (GObject          *object,
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							    guint             param_id,
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							    GValue           *value,
							    GParamSpec       *pspec);
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static void     gtk_file_chooser_button_finalize           (GObject          *object);
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/* 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);
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static void     gtk_file_chooser_button_show               (GtkWidget        *widget);
static void     gtk_file_chooser_button_hide               (GtkWidget        *widget);
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static gboolean gtk_file_chooser_button_mnemonic_activate  (GtkWidget        *widget,
							    gboolean          group_cycling);
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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);
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/* Utility Functions */
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static GtkIconTheme *get_icon_theme               (GtkWidget            *widget);
static gchar        *get_display_name_for_path    (GtkFileSystem     *fs,
						   const GtkFilePath *path);

static gint          model_get_type_position      (GtkFileChooserButton *button,
						   RowType               row_type);
static void          model_free_row_data          (GtkFileChooserButton *button,
						   GtkTreeIter          *iter);
static inline void   model_add_special            (GtkFileChooserButton *button);
static inline void   model_add_other              (GtkFileChooserButton *button);
static void          model_add_volumes            (GtkFileChooserButton *button,
						   GSList               *volumes);
static void          model_add_bookmarks          (GtkFileChooserButton *button,
						   GSList               *bookmarks);
static void          model_update_current_folder  (GtkFileChooserButton *button,
						   const GtkFilePath    *path);
static void          model_remove_rows            (GtkFileChooserButton *button,
						   gint                  pos,
						   gint                  n_rows);

static gboolean      filter_model_visible_func    (GtkTreeModel         *model,
						   GtkTreeIter          *iter,
						   gpointer              user_data);

static gboolean      combo_box_row_separator_func (GtkTreeModel         *model,
						   GtkTreeIter          *iter,
						   gpointer              user_data);
static void          name_cell_data_func          (GtkCellLayout        *layout,
						   GtkCellRenderer      *cell,
						   GtkTreeModel         *model,
						   GtkTreeIter          *iter,
						   gpointer              user_data);
static void          open_dialog                  (GtkFileChooserButton *button);
static void          update_combo_box             (GtkFileChooserButton *button);
static void          update_label_and_image       (GtkFileChooserButton *button);

/* Child Object Callbacks */
static void     fs_volumes_changed_cb            (GtkFileSystem  *fs,
						  gpointer        user_data);
static void     fs_bookmarks_changed_cb          (GtkFileSystem  *fs,
						  gpointer        user_data);

static void     combo_box_changed_cb             (GtkComboBox    *combo_box,
						  gpointer        user_data);

static void     button_clicked_cb                (GtkButton      *real_button,
						  gpointer        user_data);

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);
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/* ******************* *
 *  GType Declaration  *
 * ******************* */

G_DEFINE_TYPE_WITH_CODE (GtkFileChooserButton, gtk_file_chooser_button, GTK_TYPE_HBOX, { \
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    G_IMPLEMENT_INTERFACE (GTK_TYPE_FILE_CHOOSER, gtk_file_chooser_button_file_chooser_iface_init) \
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});


/* ***************** *
 *  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);

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  gobject_class->constructor = gtk_file_chooser_button_constructor;
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  gobject_class->set_property = gtk_file_chooser_button_set_property;
  gobject_class->get_property = gtk_file_chooser_button_get_property;
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  gobject_class->finalize = gtk_file_chooser_button_finalize;
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  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;
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  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;
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  widget_class->mnemonic_activate = gtk_file_chooser_button_mnemonic_activate;
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  /**
   * GtkFileChooserButton:dialog:
   * 
   * Instance of the #GtkFileChooserDialog associated with the button.
   *
   * Since: 2.6
   */
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  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)));
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  /**
   * GtkFileChooserButton:title:
   * 
   * Title to put on the #GtkFileChooserDialog associated with the button.
   *
   * Since: 2.6
   */
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  g_object_class_install_property (gobject_class, PROP_TITLE,
				   g_param_spec_string ("title",
							P_("Title"),
							P_("The title of the file chooser dialog."),
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							_("Select a File"),
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							G_PARAM_READWRITE));
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  /**
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   * GtkFileChooserButton:width-chars:
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   * 
   * The width of the entry and label inside the button, in characters.
   *
   * Since: 2.6
   */
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  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));
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  _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;
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  GtkWidget *box, *image, *sep;
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  GtkTargetList *target_list;
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  priv = G_TYPE_INSTANCE_GET_PRIVATE (button, GTK_TYPE_FILE_CHOOSER_BUTTON,
				      GtkFileChooserButtonPrivate);
  button->priv = priv;

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  priv->icon_size = FALLBACK_ICON_SIZE;

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  gtk_widget_push_composite_child ();

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  /* Button */
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  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);
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  gtk_widget_show (priv->button);

  box = gtk_hbox_new (FALSE, 4);
  gtk_container_add (GTK_CONTAINER (priv->button), box);
  gtk_widget_show (box);
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  priv->image = gtk_image_new ();
  gtk_box_pack_start (GTK_BOX (box), priv->image, FALSE, FALSE, 0);
  gtk_widget_show (priv->image);
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  priv->label = gtk_label_new (_(FALLBACK_DISPLAY_NAME));
  gtk_label_set_ellipsize (GTK_LABEL (priv->label), PANGO_ELLIPSIZE_END);
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  gtk_misc_set_alignment (GTK_MISC (priv->label), 0.0, 0.5);
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  gtk_container_add (GTK_CONTAINER (box), priv->label);
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  gtk_widget_show (priv->label);

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  sep = gtk_vseparator_new ();
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  gtk_box_pack_start (GTK_BOX (box), sep, FALSE, FALSE, 0);
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  gtk_widget_show (sep);

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  image = gtk_image_new_from_stock (GTK_STOCK_OPEN,
				    GTK_ICON_SIZE_SMALL_TOOLBAR);
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  gtk_box_pack_start (GTK_BOX (box), image, FALSE, FALSE, 0);
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  gtk_widget_show (image);

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  /* Combo Box */
  /* Keep in sync with columns enum, line 88 */
  priv->model =
    GTK_TREE_MODEL (gtk_list_store_new (NUM_COLUMNS,
					GDK_TYPE_PIXBUF, /* Icon */
					G_TYPE_STRING,	 /* Display Name */
					G_TYPE_CHAR,	 /* Row Type */
					G_TYPE_POINTER	 /* Volume || Path */));

  priv->combo_box = gtk_combo_box_new ();
  priv->combo_box_changed_id =
    g_signal_connect (priv->combo_box, "changed",
		      G_CALLBACK (combo_box_changed_cb), button);
  gtk_container_add (GTK_CONTAINER (button), priv->combo_box);

  priv->icon_cell = gtk_cell_renderer_pixbuf_new ();
  gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (priv->combo_box),
			      priv->icon_cell, FALSE);
  gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->combo_box),
				 priv->icon_cell, "pixbuf", ICON_COLUMN);

  priv->name_cell = gtk_cell_renderer_text_new ();
  gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (priv->combo_box),
			      priv->name_cell, TRUE);
  gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (priv->combo_box),
				 priv->name_cell, "text", DISPLAY_NAME_COLUMN);
  gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (priv->combo_box),
				      priv->name_cell, name_cell_data_func,
				      NULL, NULL);

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  gtk_widget_pop_composite_child ();

  /* DnD */
  gtk_drag_dest_set (GTK_WIDGET (button),
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                     (GTK_DEST_DEFAULT_ALL),
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		     NULL, 0,
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		     GDK_ACTION_COPY);
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  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);
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}


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/* ******************************* *
 *  GtkFileChooserIface Functions  *
 * ******************************* */
static void
gtk_file_chooser_button_file_chooser_iface_init (GtkFileChooserIface *iface)
{
  _gtk_file_chooser_delegate_iface_init (iface);

  iface->add_shortcut_folder = gtk_file_chooser_button_add_shortcut_folder;
  iface->remove_shortcut_folder = gtk_file_chooser_button_remove_shortcut_folder;
}

static gboolean
gtk_file_chooser_button_add_shortcut_folder (GtkFileChooser     *chooser,
					     const GtkFilePath  *path,
					     GError            **error)
{
  GtkFileChooser *delegate;
  gboolean retval;

  delegate = g_object_get_qdata (G_OBJECT (chooser),
				 GTK_FILE_CHOOSER_DELEGATE_QUARK);
  retval = _gtk_file_chooser_add_shortcut_folder (delegate, path, error);

  if (retval)
    {
      GtkFileChooserButtonPrivate *priv;
      GtkTreeIter iter;
      gint pos;
      GdkPixbuf *pixbuf;
      gchar *display_name;

      priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (chooser);

      pos = model_get_type_position (GTK_FILE_CHOOSER_BUTTON (chooser),
				     ROW_TYPE_SHORTCUT);
      pos += priv->n_shortcuts;

      pixbuf = gtk_file_system_render_icon (priv->fs, path,
					    GTK_WIDGET (chooser),
					    priv->icon_size, NULL);
      display_name = get_display_name_for_path (priv->fs, path);

      gtk_list_store_insert (GTK_LIST_STORE (priv->model), &iter, pos);
      gtk_list_store_set (GTK_LIST_STORE (priv->model), &iter,
			  ICON_COLUMN, pixbuf,
			  DISPLAY_NAME_COLUMN, display_name,
			  TYPE_COLUMN, ROW_TYPE_SHORTCUT,
			  DATA_COLUMN, gtk_file_path_copy (path),
			  -1);
      priv->n_shortcuts++;

      if (pixbuf)
	g_object_unref (pixbuf);
      g_free (display_name);

      gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (priv->filter_model));
    }

  return retval;
}

static gboolean
gtk_file_chooser_button_remove_shortcut_folder (GtkFileChooser     *chooser,
						const GtkFilePath  *path,
						GError            **error)
{
  GtkFileChooser *delegate;
  gboolean retval;

  delegate = g_object_get_qdata (G_OBJECT (chooser),
				 GTK_FILE_CHOOSER_DELEGATE_QUARK);

  retval = _gtk_file_chooser_add_shortcut_folder (delegate, path, error);

  if (retval)
    {
      GtkFileChooserButtonPrivate *priv;
      GtkTreeIter iter;
      gint pos;
      gchar type;

      priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (chooser);

      pos = model_get_type_position (GTK_FILE_CHOOSER_BUTTON (chooser),
				     ROW_TYPE_SHORTCUT);
      g_assert (gtk_tree_model_iter_nth_child (priv->model, &iter, NULL, pos));

      do
	{
	  gpointer data;

	  gtk_tree_model_get (priv->model, &iter,
			      TYPE_COLUMN, &type,
			      DATA_COLUMN, &data,
			      -1);

	  if (type == ROW_TYPE_SHORTCUT &&
	      data &&
	      gtk_file_path_compare (data, path) == 0)
	    {
	      model_free_row_data (GTK_FILE_CHOOSER_BUTTON (chooser), &iter);
	      gtk_list_store_remove (GTK_LIST_STORE (priv->model), &iter);
	      priv->n_shortcuts--;
	      gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (priv->filter_model));
	      update_combo_box (GTK_FILE_CHOOSER_BUTTON (chooser));
	      break;
	    }
	}
      while (type == ROW_TYPE_SHORTCUT &&
	     gtk_tree_model_iter_next (priv->model, &iter));
    }

  return retval;
}


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/* ******************* *
 *  GObject Functions  *
 * ******************* */

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static GObject *
gtk_file_chooser_button_constructor (GType                  type,
				     guint                  n_params,
				     GObjectConstructParam *params)
{
  GObject *object;
  GtkFileChooserButtonPrivate *priv;
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  GSList *list;
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  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,
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								 priv->backend,
								 GTK_STOCK_CANCEL,
								 GTK_RESPONSE_CANCEL,
								 GTK_STOCK_OPEN,
								 GTK_RESPONSE_ACCEPT,
								 NULL);
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      else
	priv->dialog = gtk_file_chooser_dialog_new (NULL, NULL,
						    GTK_FILE_CHOOSER_ACTION_OPEN,
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						    GTK_STOCK_CANCEL,
						    GTK_RESPONSE_CANCEL,
						    GTK_STOCK_OPEN,
						    GTK_RESPONSE_ACCEPT,
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						    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));

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  priv->fs =
    g_object_ref (_gtk_file_chooser_get_file_system (GTK_FILE_CHOOSER (priv->dialog)));

  model_add_special (GTK_FILE_CHOOSER_BUTTON (object));

  list = gtk_file_system_list_volumes (priv->fs);
  model_add_volumes (GTK_FILE_CHOOSER_BUTTON (object), list);
  g_slist_free (list);

  list = gtk_file_system_list_bookmarks (priv->fs);
  model_add_bookmarks (GTK_FILE_CHOOSER_BUTTON (object), list);
  gtk_file_paths_free (list);

  model_add_other (GTK_FILE_CHOOSER_BUTTON (object));

  priv->filter_model = gtk_tree_model_filter_new (priv->model, NULL);
  gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (priv->filter_model),
					  filter_model_visible_func,
					  object, NULL);

  gtk_combo_box_set_model (GTK_COMBO_BOX (priv->combo_box), priv->filter_model);
  gtk_combo_box_set_row_separator_func (GTK_COMBO_BOX (priv->combo_box),
					combo_box_row_separator_func,
					NULL, NULL);

  update_label_and_image (GTK_FILE_CHOOSER_BUTTON (object));
  update_combo_box (GTK_FILE_CHOOSER_BUTTON (object));

  priv->fs_volumes_changed_id =
    g_signal_connect (priv->fs, "volumes-changed",
		      G_CALLBACK (fs_volumes_changed_cb), object);
  priv->fs_bookmarks_changed_id =
    g_signal_connect (priv->fs, "bookmarks-changed",
		      G_CALLBACK (fs_bookmarks_changed_cb), object);

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  return object;
}
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static void
gtk_file_chooser_button_set_property (GObject      *object,
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				      guint         param_id,
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				      const GValue *value,
				      GParamSpec   *pspec)
{
  GtkFileChooserButtonPrivate *priv;

  priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (object);

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  switch (param_id)
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    {
    case PROP_DIALOG:
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      /* Construct-only */
      priv->dialog = g_value_get_object (value);
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      break;
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    case PROP_WIDTH_CHARS:
      gtk_file_chooser_button_set_width_chars (GTK_FILE_CHOOSER_BUTTON (object),
					       g_value_get_int (value));
      break;
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    case GTK_FILE_CHOOSER_PROP_ACTION:
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      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));
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	    g_warning ("%s: Choosers of type `%s' do not support `%s'.",
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		       G_STRFUNC, G_OBJECT_TYPE_NAME (object), eval->value_name);

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	    g_value_set_enum ((GValue *) value, GTK_FILE_CHOOSER_ACTION_OPEN);
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	  }
	  break;
	}
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      g_object_set_property (G_OBJECT (priv->dialog), pspec->name, value);
      update_label_and_image (GTK_FILE_CHOOSER_BUTTON (object));
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      update_combo_box (GTK_FILE_CHOOSER_BUTTON (object));

      switch (g_value_get_enum (value))
	{
	case GTK_FILE_CHOOSER_ACTION_OPEN:
	  gtk_widget_hide (priv->combo_box);
	  gtk_widget_show (priv->button);
	  break;
	case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER:
	  gtk_widget_hide (priv->button);
	  gtk_widget_show (priv->combo_box);
	  break;
	default:
	  g_assert_not_reached ();
	  break;
	}
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      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 */
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      priv->backend = g_value_dup_string (value);
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      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:
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      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
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      break;
    }
}

static void
gtk_file_chooser_button_get_property (GObject    *object,
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				      guint       param_id,
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				      GValue     *value,
				      GParamSpec *pspec)
{
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  GtkFileChooserButtonPrivate *priv;
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  priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (object);

  switch (param_id)
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    {
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    case PROP_WIDTH_CHARS:
      g_value_set_int (value,
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		       gtk_label_get_width_chars (GTK_LABEL (priv->label)));
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      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:
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      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
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      break;
    }
}

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static void
gtk_file_chooser_button_finalize (GObject *object)
{
  GtkFileChooserButtonPrivate *priv;
  GtkTreeIter iter;

  priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (object);

  if (priv->old_path)
    gtk_file_path_free (priv->old_path);

  g_assert (gtk_tree_model_get_iter_first (priv->model, &iter));

  do
    {
      model_free_row_data (GTK_FILE_CHOOSER_BUTTON (object), &iter);
    }
  while (gtk_tree_model_iter_next (priv->model, &iter));

  g_object_unref (priv->model);
  g_object_unref (priv->filter_model);

  g_signal_handler_disconnect (priv->fs, priv->fs_volumes_changed_id);
  g_signal_handler_disconnect (priv->fs, priv->fs_bookmarks_changed_id);
  g_object_unref (priv->fs);

  if (G_OBJECT_CLASS (gtk_file_chooser_button_parent_class)->finalize != NULL)
    (*G_OBJECT_CLASS (gtk_file_chooser_button_parent_class)->finalize) (object);
}
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/* ********************* *
 *  GtkObject Functions  *
 * ********************* */

static void
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gtk_file_chooser_button_destroy (GtkObject *object)
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{
  GtkFileChooserButtonPrivate *priv;

  priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (object);

  if (priv->dialog != NULL)
    gtk_widget_destroy (priv->dialog);
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  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;
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  GtkFilePath *path;
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  gchar *text;
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  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);

  switch (info)
    {
    case TEXT_URI_LIST:
      {
	gchar **uris;
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	GtkFilePath *base_path;
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	guint i;
	gboolean selected;

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	uris = gtk_selection_data_get_uris (data);
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	if (uris == NULL)
	  break;

	selected = FALSE;
	for (i = 0; !selected && uris[i] != NULL; i++)
	  {
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	    path = gtk_file_system_uri_to_path (priv->fs, uris[i]);
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	    base_path = NULL;
	    if (path != NULL &&
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		gtk_file_system_get_parent (priv->fs, path, &base_path, NULL))
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	      {
		GtkFileFolder *folder;
		GtkFileInfo *info;

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		folder = gtk_file_system_get_folder (priv->fs, base_path,
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						     GTK_FILE_INFO_IS_FOLDER,
						     NULL);

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		info = gtk_file_folder_get_info (folder, path, NULL);
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		if (info != NULL)
		  {
		    GtkFileChooserAction action;

		    g_object_get (priv->dialog, "action", &action, NULL);

		    selected = 
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		      (((action == GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER &&
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			 gtk_file_info_get_is_folder (info)) ||
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			(action == GTK_FILE_CHOOSER_ACTION_OPEN &&
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			 !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:
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      text = gtk_selection_data_get_text (data);
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      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:
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      break;
    }

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  gtk_drag_finish (context, TRUE, FALSE, drag_time);
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}

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);
}

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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);

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  if (priv->active)
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    open_dialog (GTK_FILE_CHOOSER_BUTTON (widget));
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}

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);
}
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static gboolean
gtk_file_chooser_button_mnemonic_activate (GtkWidget *widget,
					   gboolean   group_cycling)
{
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  GtkFileChooserButtonPrivate *priv;
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  priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (widget);
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  gtk_widget_grab_focus (priv->button);
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  return TRUE;
}

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/* Changes the icons wherever it is needed */
static void
change_icon_theme (GtkFileChooserButton *button)
{
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  GtkFileChooserButtonPrivate *priv;
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  GtkSettings *settings;
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  GtkIconTheme *theme;
  GtkTreeIter iter;
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  gint width, height;

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  priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (button);

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  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))
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    priv->icon_size = MAX (width, height);
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  else
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    priv->icon_size = FALLBACK_ICON_SIZE;
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  update_label_and_image (button);
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  g_assert (gtk_tree_model_get_iter_first (priv->model, &iter));

  theme = get_icon_theme (GTK_WIDGET (button));

  do
    {
      GdkPixbuf *pixbuf;
      gchar type;
      gpointer data;

      type = ROW_TYPE_INVALID;
      gtk_tree_model_get (priv->model, &iter,
			  TYPE_COLUMN, &type,
			  DATA_COLUMN, &data,
			  -1);

      switch (type)
	{
	case ROW_TYPE_SPECIAL:
	case ROW_TYPE_SHORTCUT:
	case ROW_TYPE_BOOKMARK:
	case ROW_TYPE_CURRENT_FOLDER:
	  if (data)
	    pixbuf = gtk_file_system_render_icon (priv->fs, data,
						  GTK_WIDGET (button),
						  priv->icon_size, NULL);
	  else
	    pixbuf = gtk_icon_theme_load_icon (theme, FALLBACK_ICON_NAME,
					       priv->icon_size, 0, NULL);
	  break;
	case ROW_TYPE_VOLUME:
	  if (data)
	    pixbuf = gtk_file_system_volume_render_icon (priv->fs, data,
							 GTK_WIDGET (button),
							 priv->icon_size,
							 NULL);
	  else
	    pixbuf = gtk_icon_theme_load_icon (theme, FALLBACK_ICON_NAME,
					       priv->icon_size, 0, NULL);
	  break;
	default:
	  continue;
	  break;
	}

      if (pixbuf)
	width = MAX (width, gdk_pixbuf_get_width (pixbuf));

      gtk_list_store_set (GTK_LIST_STORE (priv->model), &iter,
			  ICON_COLUMN, pixbuf,
			  -1);
    }
  while (gtk_tree_model_iter_next (priv->model, &iter));

  g_object_set (button->priv->icon_cell,
		"width", width,
		NULL);
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}

static void
gtk_file_chooser_button_style_set (GtkWidget *widget,
				   GtkStyle  *old_style)
{
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  GtkFileChooserButtonPrivate *priv;

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  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);

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  priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (widget);

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  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)
{
  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);

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  change_icon_theme (GTK_FILE_CHOOSER_BUTTON (widget)); 
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}

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/* ******************* *
 *  Utility Functions  *
 * ******************* */
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/* General */
static GtkIconTheme *
get_icon_theme (GtkWidget *widget)
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{
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  if (gtk_widget_has_screen (widget))
    return gtk_icon_theme_get_for_screen (gtk_widget_get_screen (widget));
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  return gtk_icon_theme_get_default ();
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}

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static gchar *
get_display_name_for_path (GtkFileSystem     *fs,
			   const GtkFilePath *path)
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{
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  GtkFilePath *parent_path;
  GtkFileFolder *folder;
  gchar *retval;
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  parent_path = NULL;
  retval = NULL;
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  gtk_file_system_get_parent (fs, path, &parent_path, NULL);
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  folder = gtk_file_system_get_folder (fs, parent_path ? parent_path : path,
				       GTK_FILE_INFO_DISPLAY_NAME, NULL);
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  if (folder)
    {
      GtkFileInfo *info;
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      info = gtk_file_folder_get_info (folder, path, NULL);
      g_object_unref (folder);
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      if (info)
	{
	  retval = g_strdup (gtk_file_info_get_display_name (info));
	  gtk_file_info_free (info);
	}
    }
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  if (parent_path)
    gtk_file_path_free (parent_path);

  if (!retval)
    retval = g_strdup (_(FALLBACK_DISPLAY_NAME));

  return retval;
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}

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/* Shortcuts Model */
static gint
model_get_type_position (GtkFileChooserButton *button,
			 RowType               row_type)
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{
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  gint retval = 0;
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  if (row_type == ROW_TYPE_SPECIAL)
    return retval;
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  retval += button->priv->n_special;
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  if (row_type == ROW_TYPE_VOLUME)
    return retval;
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  retval += button->priv->n_volumes;

  if (row_type == ROW_TYPE_SHORTCUT)
    return retval;

  retval += button->priv->n_shortcuts;

  if (row_type == ROW_TYPE_BOOKMARK_SEPARATOR)
    return retval;

  retval += button->priv->has_bookmark_separator;

  if (row_type == ROW_TYPE_BOOKMARK)
    return retval;

  retval += button->priv->n_bookmarks;

  if (row_type == ROW_TYPE_CURRENT_FOLDER_SEPARATOR)
    return retval;

  retval += button->priv->has_current_folder_separator;

  if (row_type == ROW_TYPE_CURRENT_FOLDER)
    return retval;

  retval += button->priv->has_current_folder;

  if (row_type == ROW_TYPE_OTHER_SEPARATOR)
    return retval;

  retval += button->priv->has_other_separator;

  if (row_type == ROW_TYPE_OTHER)
    return retval;

  g_assert_not_reached ();
  return -1;
}

static void
model_free_row_data (GtkFileChooserButton *button,
		     GtkTreeIter          *iter)
1235
{
1236 1237
  gchar type;
  gpointer data;
1238

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  gtk_tree_model_get (button->priv->model, iter,
		      TYPE_COLUMN, &type,
		      DATA_COLUMN, &data,
		      -1);

  switch (type)
    {
    case ROW_TYPE_SPECIAL:
    case ROW_TYPE_SHORTCUT:
    case ROW_TYPE_BOOKMARK:
    case ROW_TYPE_CURRENT_FOLDER:
      gtk_file_path_free (data);
      break;
    case ROW_TYPE_VOLUME:
      gtk_file_system_volume_free (button->priv->fs, data);
      break;
    default:
      break;
    }
}

static inline void
model_add_special (GtkFileChooserButton *button)
{
  const gchar *homedir;

  homedir = g_get_home_dir ();

  if (homedir)
    {
      GtkListStore *store;
      GtkTreeIter iter;
      GtkFilePath *path;
      GdkPixbuf *pixbuf;
      gchar *desktopdir;
      gint pos;

      store = GTK_LIST_STORE (button->priv->model);

      pos = model_get_type_position (button, ROW_TYPE_SPECIAL);

      path = gtk_file_system_filename_to_path (button->priv->fs, homedir);
      pixbuf = gtk_file_system_render_icon (button->priv->fs, path,
					    GTK_WIDGET (button),
					    button->priv->icon_size, NULL);
      gtk_list_store_insert (store, &iter, pos);
      gtk_list_store_set (store, &iter,
			  ICON_COLUMN, pixbuf,
			  DISPLAY_NAME_COLUMN, _(HOME_DISPLAY_NAME),
			  TYPE_COLUMN, ROW_TYPE_SPECIAL,
			  DATA_COLUMN, path,
			  -1);

      g_object_unref (pixbuf);
      button->priv->n_special++;

      desktopdir = g_build_filename (homedir, DESKTOP_DISPLAY_NAME, NULL);
      pos++;

      path = gtk_file_system_filename_to_path (button->priv->fs, desktopdir);
      g_free (desktopdir);
      pixbuf = gtk_file_system_render_icon (button->priv->fs, path,
					    GTK_WIDGET (button),
					    button->priv->icon_size, NULL);
      gtk_list_store_insert (store, &iter, pos);
      gtk_list_store_set (store, &iter,
			  TYPE_COLUMN, ROW_TYPE_SPECIAL,
			  ICON_COLUMN, pixbuf,
			  DISPLAY_NAME_COLUMN, _(DESKTOP_DISPLAY_NAME),
			  DATA_COLUMN, path,
			  -1);

      g_object_unref (pixbuf);
      button->priv->n_special++;
    }
}

static void
model_add_volumes (GtkFileChooserButton *button,
		   GSList               *volumes)
{
  GtkListStore *store;
  gint pos;

  if (!volumes)
    return;

  store = GTK_LIST_STORE (button->priv->model);
  pos = model_get_type_position (button, ROW_TYPE_VOLUME);

  do
    {
      GtkTreeIter iter;
      GdkPixbuf *pixbuf;
      gchar *display_name;

      pixbuf = gtk_file_system_volume_render_icon (button->priv->fs,
						   volumes->data,
						   GTK_WIDGET (button),
						   button->priv->icon_size,
						   NULL);
      display_name = gtk_file_system_volume_get_display_name (button->priv->fs,
							      volumes->data);

      gtk_list_store_insert (store, &iter, pos);
      gtk_list_store_set (store, &iter,
			  ICON_COLUMN, pixbuf,
			  DISPLAY_NAME_COLUMN, display_name,
			  TYPE_COLUMN, ROW_TYPE_VOLUME,
			  DATA_COLUMN, volumes->data,
			  -1);

      g_object_unref (pixbuf);
      g_free (display_name);

      button->priv->n_volumes++;
      pos++;
      volumes = volumes->next;
    }
  while (volumes);
}

static void
model_add_bookmarks (GtkFileChooserButton *button,
		     GSList               *bookmarks)
{
  GtkListStore *store;
  GtkTreeIter iter;
  gint pos;

  if (!bookmarks)
    return;

  store = GTK_LIST_STORE (button->priv->model);
  pos = model_get_type_position (button, ROW_TYPE_BOOKMARK_SEPARATOR);

  if (!button->priv->has_bookmark_separator)
    {
      gtk_list_store_insert (store, &iter, pos);
      gtk_list_store_set (store, &iter,
			  ICON_COLUMN, NULL,
			  DISPLAY_NAME_COLUMN, NULL,
			  TYPE_COLUMN, ROW_TYPE_BOOKMARK_SEPARATOR,
			  DATA_COLUMN, NULL,
			  -1);
      button->priv->has_bookmark_separator = TRUE;
    }

  do
    {
      GdkPixbuf *pixbuf;
      gchar *display_name;

      pos++;
      pixbuf = gtk_file_system_render_icon (button->priv->fs, bookmarks->data,
					    GTK_WIDGET (button),
					    button->priv->icon_size, NULL);
      display_name = get_display_name_for_path (button->priv->fs,
						bookmarks->data);

      gtk_list_store_insert (store, &iter, pos);
      gtk_list_store_set (store, &iter,
			  ICON_COLUMN, pixbuf,
			  DISPLAY_NAME_COLUMN, display_name,
			  TYPE_COLUMN, ROW_TYPE_BOOKMARK,
			  DATA_COLUMN, gtk_file_path_copy (bookmarks->data),
			  -1);
      if (pixbuf)
	g_object_unref (pixbuf);
      g_free (display_name);

      button->priv->n_bookmarks++;
      bookmarks = bookmarks->next;
    }
  while (bookmarks);
}

static void
model_update_current_folder (GtkFileChooserButton *button,
			     const GtkFilePath    *path)
{
  GtkListStore *store;
  GtkTreeIter iter;
  gint pos;
  GdkPixbuf *pixbuf;
  gchar *display_name;

  if (!path) 
    return;

  store = GTK_LIST_STORE (button->priv->model);

  if (!button->priv->has_current_folder_separator)
    {
      pos = model_get_type_position (button, ROW_TYPE_CURRENT_FOLDER_SEPARATOR);
      gtk_list_store_insert (store, &iter, pos);
      gtk_list_store_set (store, &iter,
			  ICON_COLUMN, NULL,
			  DISPLAY_NAME_COLUMN, NULL,
			  TYPE_COLUMN, ROW_TYPE_CURRENT_FOLDER_SEPARATOR,
			  DATA_COLUMN, NULL,
			  -1);
      button->priv->has_current_folder_separator = TRUE;
    }

  pos = model_get_type_position (button, ROW_TYPE_CURRENT_FOLDER);
  if (!button->priv->has_current_folder)
    {
      gtk_list_store_insert (store, &iter, pos);
      button->priv->has_current_folder = TRUE;
    }
  else
    gtk_tree_model_iter_nth_child (button->priv->model, &iter, NULL, pos);

  pixbuf = gtk_file_system_render_icon (button->priv->fs, path,
					GTK_WIDGET (button),
					button->priv->icon_size, NULL);
  display_name = get_display_name_for_path (button->priv->fs, path);
  gtk_list_store_set (store, &iter,
		      ICON_COLUMN, pixbuf,
		      DISPLAY_NAME_COLUMN, display_name,
		      TYPE_COLUMN, ROW_TYPE_CURRENT_FOLDER,
		      DATA_COLUMN, gtk_file_path_copy (path),
		      -1);
  if (pixbuf)
    g_object_unref (pixbuf);
  g_free (display_name);
}

static inline void
model_add_other (GtkFileChooserButton *button)
{
  GtkListStore *store;
  GtkTreeIter iter;
  gint pos;
  
  store = GTK_LIST_STORE (button->priv->model);
  pos = model_get_type_position (button, ROW_TYPE_OTHER_SEPARATOR);

  gtk_list_store_insert (store, &iter, pos);
  gtk_list_store_set (store, &iter,
		      ICON_COLUMN, NULL,
		      DISPLAY_NAME_COLUMN, NULL,
		      TYPE_COLUMN, ROW_TYPE_OTHER_SEPARATOR,
		      DATA_COLUMN, NULL,
		      -1);
  button->priv->has_other_separator = TRUE;
  pos++;

  gtk_list_store_insert (store, &iter, pos);
  gtk_list_store_set (store, &iter,
		      ICON_COLUMN, NULL,
		      DISPLAY_NAME_COLUMN, _("Other..."),
		      TYPE_COLUMN, ROW_TYPE_OTHER,
		      DATA_COLUMN, NULL,
		      -1);
}

static void
model_remove_rows (GtkFileChooserButton *button,
		   gint                  pos,
		   gint                  n_rows)
{
  GtkListStore *store;

  if (!n_rows)
    return;

  store = GTK_LIST_STORE (button->priv->model);

  do
    {
      GtkTreeIter iter;

      if (!gtk_tree_model_iter_nth_child (button->priv->model, &iter, NULL, pos))
	g_assert_not_reached ();

      model_free_row_data (button, &iter);
      gtk_list_store_remove (store, &iter);
      n_rows--;
    }
  while (n_rows);
}

/* Filter Model */
static inline gboolean
test_if_path_is_visible (GtkFileSystem     *fs,
			 const GtkFilePath *path,
			 gboolean           local_only)
{
  GtkFilePath *parent_path;
  GtkFileFolder *folder;
  GtkFileInfo *info;

  if (!path)
    return FALSE;

  if (local_only && !gtk_file_system_path_is_local (fs, path))
    return FALSE;

  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_IS_FOLDER, NULL);
  gtk_file_path_free (parent_path);

  if (folder)
    {
      info = gtk_file_folder_get_info (folder, path, NULL);
      g_object_unref (folder);
    }
  else
    info = NULL;

  if (!info)
    return FALSE;
  else if (!gtk_file_info_get_is_folder (info))
    {
      gtk_file_info_free (info);
      return FALSE;
    }

  gtk_file_info_free (info);

  return TRUE;
}

static gboolean
filter_model_visible_func (GtkTreeModel *model,
			   GtkTreeIter  *iter,
			   gpointer      user_data)
{
  GtkFileChooserButtonPrivate *priv;
  gchar type;
  gpointer data;
  gboolean local_only, retval;

  priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (user_data);
  type = ROW_TYPE_INVALID;
  data = NULL;
  local_only = gtk_file_chooser_get_local_only (GTK_FILE_CHOOSER (priv->dialog));

  gtk_tree_model_get (model, iter,
		      TYPE_COLUMN, &type,
		      DATA_COLUMN, &data,
		      -1);

  switch (type)
    {
    case ROW_TYPE_CURRENT_FOLDER:
      retval = TRUE;
      break;
    case ROW_TYPE_SPECIAL:
    case ROW_TYPE_SHORTCUT:
    case ROW_TYPE_BOOKMARK:
      retval = test_if_path_is_visible (priv->fs, data, local_only);
      break;
    case ROW_TYPE_VOLUME:
      {
	GtkFilePath *base_path;

	base_path = gtk_file_system_volume_get_base_path (priv->fs, data);
	if (base_path)
	  {
	    retval = (!local_only ||
		      gtk_file_system_path_is_local (priv->fs, base_path));
	    gtk_file_path_free (base_path);
	  }
	else
	  retval = FALSE;
      }
      break;
    default:
      retval = TRUE;
      break;
    }

  return retval;
}

/* Combo Box */
static void
name_cell_data_func (GtkCellLayout   *layout,
		     GtkCellRenderer *cell,
		     GtkTreeModel    *model,
		     GtkTreeIter     *iter,
		     gpointer         user_data)
{
  gchar type;

  type = 0;
  gtk_tree_model_get (model, iter,
		      TYPE_COLUMN, &type,
		      -1);

  if (type == ROW_TYPE_CURRENT_FOLDER)
    g_object_set (cell, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
  else
    g_object_set (cell, "ellipsize", PANGO_ELLIPSIZE_NONE, NULL);
}

static gboolean
combo_box_row_separator_func (GtkTreeModel *model,
			      GtkTreeIter  *iter,
			      gpointer      user_data)
{
  gchar type = ROW_TYPE_INVALID;

  gtk_tree_model_get (model, iter, TYPE_COLUMN, &type, -1);

  return (type == ROW_TYPE_BOOKMARK_SEPARATOR ||
	  type == ROW_TYPE_CURRENT_FOLDER_SEPARATOR ||
	  type == ROW_TYPE_OTHER_SEPARATOR);
}			  

static void
update_combo_box (GtkFileChooserButton *button)
{
  GtkFileChooserButtonPrivate *priv;
  GSList *paths;
  GtkTreeIter iter;
  gboolean row_found;

  priv = GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE (button);

  g_assert (gtk_tree_model_get_iter_first (priv->filter_model, &iter));

  _gtk_file_chooser_get_current_folder_path (GTK_FILE_CHOOSER (priv->dialog));
  paths = _gtk_file_chooser_get_paths (GTK_FILE_CHOOSER (priv->dialog));

  row_found = FALSE;

  do
    {
      gchar type;
      gpointer data;

      type = ROW_TYPE_INVALID;
      data = NULL;

      gtk_tree_model_get (priv->filter_model, &iter,
			  TYPE_COLUMN, &type,
			  DATA_COLUMN, &data,
			  -1);
    
      switch (type)
	{
	case ROW_TYPE_SPECIAL:
	case ROW_TYPE_SHORTCUT:
	case ROW_TYPE_BOOKMARK:
	case ROW_TYPE_CURRENT_FOLDER:
	  row_found = (paths &&
		       paths->data &&
		       gtk_file_path_compare (data, paths->data) == 0);
	  break;
	case ROW_TYPE_VOLUME:
	  {
	    GtkFilePath *base_path;

	    base_path = gtk_file_system_volume_get_base_path (priv->fs, data);
	    row_found = (paths &&
			 paths->data &&
			 gtk_file_path_compare (base_path, paths->data) == 0);
	    gtk_file_path_free (base_path);
	  }
	  break;
	default:
	  row_found = FALSE;
	  break;
	}

      if (row_found)
	{
	  g_signal_handler_block (priv->combo_box, priv->combo_box_changed_id);
	  gtk_combo_box_set_active_iter (GTK_COMBO_BOX (priv->combo_box),
					 &iter);
	  g_signal_handler_unblock (priv->combo_box,
				    priv->combo_box_changed_id);
	}
    }
  while (!row_found && gtk_tree_model_iter_next (priv->filter_model, &iter));

  /* If it hasn't been found already, update & select the current-folder row. */
  if (!row_found && paths && paths->data)
    {
      GtkTreeIter filter_iter;
      gint pos;
    
      model_update_current_folder (button, paths->data);
      gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (priv->filter_model));

      pos = model_get_type_position (button, ROW_TYPE_CURRENT_FOLDER);
      g_assert (gtk_tree_model_iter_nth_child (priv->model, &iter, NULL, pos));

      gtk_tree_model_filter_convert_child_iter_to_iter (GTK_TREE_MODEL_FILTER (priv->filter_model),
							&filter_iter, &iter);

      g_signal_handler_block (priv->combo_box, priv->combo_box_changed_id);
      gtk_combo_box_set_active_iter (GTK_COMBO_BOX (priv->combo_box), &filter_iter);
      g_signal_handler_unblock (priv->combo_box, priv->combo_box_changed_id);
    }

  gtk_file_paths_free (paths);
1743 1744
}

1745
/* Button */
1746
static void
1747
update_label_and_image (GtkFileChooserButton *button)
1748 1749 1750 1751 1752 1753 1754 1755 1756
{
  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;
1757
  pixbuf = NULL;
1758

1759
  if (paths)
1760
    {
1761
      GtkFilePath *path, *parent_path;
1762
      GtkFileSystemVolume *volume;
1763
      GtkFileFolder *folder;
1764 1765
    
      path = paths->data;
1766

1767
      volume = gtk_file_system_get_volume_for_path (priv->fs, path);
1768 1769 1770 1771
      if (volume)
	{
	  GtkFilePath *base_path;

1772
	  base_path = gtk_file_system_volume_get_base_path (priv->fs, volume);
1773
	  if (base_path && gtk_file_path_compare (base_path, path) == 0)
1774
	    {
1775 1776 1777
	      label_text = gtk_file_system_volume_get_display_name (priv->fs,
								    volume);
	      pixbuf = gtk_file_system_volume_render_icon (priv->fs, volume,
1778 1779 1780 1781
							   GTK_WIDGET (button),
							   priv->icon_size,
							   NULL);
	    }
1782 1783 1784 1785

	  if (base_path)
	    gtk_file_path_free (base_path);

1786
	  gtk_file_system_volume_free (priv->fs, volume);
1787 1788 1789 1790 1791

	  if (label_text)
	    goto out;
	}

1792
      if (!pixbuf)
1793 1794
	pixbuf = gtk_file_system_render_icon (priv->fs, path,
					      GTK_WIDGET (button),
1795
					      priv->icon_size, NULL);
1796

1797
      parent_path = NULL;
1798
      gtk_file_system_get_parent (priv->fs, path, &parent_path, NULL);
1799

1800 1801
      folder = gtk_file_system_get_folder (priv->fs,
					   parent_path ? parent_path : path,
1802 1803
					   GTK_FILE_INFO_DISPLAY_NAME, NULL);
      if (folder)
1804
	{
1805
	  GtkFileInfo *info;
1806

1807 1808
	  info = gtk_file_folder_get_info (folder, path, NULL);
	  g_object_unref (folder);
1809

1810 1811 1812 1813 1814
	  if (info)
	    {
	      label_text = g_strdup (gtk_file_info_get_display_name (info));
	      gtk_file_info_free (info);
	    }
1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825
	}

     out:
      gtk_file_paths_free (paths);
    }

  if (label_text)
    {
      gtk_label_set_text (GTK_LABEL (priv->label), label_text);
      g_free (label_text);
    }
1826
  else
1827
    gtk_label_set_text (GTK_LABEL (priv->label), _(FALLBACK_DISPLAY_NAME));
1828 1829 1830 1831 1832
  
  if (!pixbuf)
    pixbuf = gtk_icon_theme_load_icon (get_icon_theme (GTK_WIDGET (button)),
				       FALLBACK_ICON_NAME,
				       priv->icon_size, 0, NULL);
1833

1834 1835 1836
  gtk_image_set_from_pixbuf (GTK_IMAGE (priv->image), pixbuf);
  if (pixbuf)
    g_object_unref (pixbuf);