gtkfilechooserbutton.c 63.2 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 "gtkintl.h"
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#include "gtkbutton.h"
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#include "gtkcelllayout.h"
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#include "gtkcellrenderertext.h"
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#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"

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#ifdef G_OS_WIN32
#include "gtkfilesystemwin32.h"
#endif
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#include "gtkprivate.h"
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#include "gtkalias.h"

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/* **************** *
 *  Private Macros  *
 * **************** */

#define GTK_FILE_CHOOSER_BUTTON_GET_PRIVATE(object) (GTK_FILE_CHOOSER_BUTTON ((object))->priv)

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#define DEFAULT_TITLE		N_("Select A File")
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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	16
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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,
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							(GTK_PARAM_WRITABLE |
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							 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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							_(DEFAULT_TITLE),
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							GTK_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,
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						     GTK_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,
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				    GTK_ICON_SIZE_MENU);
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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);

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  retval = _gtk_file_chooser_remove_shortcut_folder (delegate, path, error);
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  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);

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  /* set up the action for a user-provided dialog, this also updates
   * the label, image and combobox
   */
  g_object_set (object, 
		"action", gtk_file_chooser_get_action (GTK_FILE_CHOOSER (priv->dialog)),
		NULL);
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  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:
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    case GTK_FILE_CHOOSER_PROP_DO_OVERWRITE_CONFIRMATION:
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      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:
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    case GTK_FILE_CHOOSER_PROP_DO_OVERWRITE_CONFIRMATION:
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      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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  switch (gtk_file_chooser_get_action (GTK_FILE_CHOOSER (priv->dialog)))
    {
    case GTK_FILE_CHOOSER_ACTION_OPEN:
      gtk_widget_grab_focus (priv->button);
      break;
    case GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER:
      return gtk_widget_mnemonic_activate (priv->combo_box, group_cycling);
      break;
    default:
      g_assert_not_reached ();
      break;
    }
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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)));

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  if (gtk_icon_size_lookup_for_settings (settings, GTK_ICON_SIZE_MENU,
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					 &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)
1205
{
1206
  gint retval = 0;
1207

1208 1209
  if (row_type == ROW_TYPE_SPECIAL)
    return retval;
1210

1211
  retval += button->priv->n_special;
1212

1213 1214
  if (row_type == ROW_TYPE_VOLUME)
    return retval;
1215

1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257
  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)
1258
{
1259 1260