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[gtk/wip/ebassi/filechooser-new: 86/87] Drop GtkFileChooser:extra-widget

commit df5f4f5316710faa172f1af03ea0fb4b716faa10
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Feb 21 15:34:37 2020 +0000

    Drop GtkFileChooser:extra-widget
    
    We have "choices" as a more rational (and portable) API; additionally,
    the ownership semantics of the extra widget property getter are a hack.

 docs/reference/gtk/gtk4-sections.txt |  2 -
 gtk/gtkfilechooser.c                 | 88 ++++--------------------------------
 gtk/gtkfilechooser.h                 |  8 ----
 gtk/gtkfilechooserbutton.c           |  2 -
 gtk/gtkfilechoosernative.c           |  8 ----
 gtk/gtkfilechoosernativequartz.c     | 11 -----
 gtk/gtkfilechoosernativewin32.c      |  4 --
 gtk/gtkfilechooserutils.c            |  3 --
 gtk/gtkfilechooserutils.h            |  1 -
 gtk/gtkfilechooserwidget.c           |  8 ----
 tests/testgtk.c                      | 24 ----------
 11 files changed, 8 insertions(+), 151 deletions(-)
---
diff --git a/docs/reference/gtk/gtk4-sections.txt b/docs/reference/gtk/gtk4-sections.txt
index ca12a13dab..6362023d03 100644
--- a/docs/reference/gtk/gtk4-sections.txt
+++ b/docs/reference/gtk/gtk4-sections.txt
@@ -1158,8 +1158,6 @@ gtk_file_chooser_get_preview_widget_active
 gtk_file_chooser_set_use_preview_label
 gtk_file_chooser_get_use_preview_label
 gtk_file_chooser_get_preview_file
-gtk_file_chooser_set_extra_widget
-gtk_file_chooser_get_extra_widget
 <SUBSECTION>
 gtk_file_chooser_add_filter
 gtk_file_chooser_remove_filter
diff --git a/gtk/gtkfilechooser.c b/gtk/gtkfilechooser.c
index 25ea82ff36..bf1544509f 100644
--- a/gtk/gtkfilechooser.c
+++ b/gtk/gtkfilechooser.c
@@ -117,32 +117,15 @@
  * }
  * ]|
  *
- * # Adding Extra Widgets
+ * # Adding options 
  *
  * You can add extra widgets to a file chooser to provide options
- * that are not present in the default design.  For example, you
- * can add a toggle button to give the user the option to open a
- * file in read-only mode.  You can use
- * gtk_file_chooser_set_extra_widget() to insert additional
- * widgets in a file chooser.
- *
- * An example for adding extra widgets:
- * |[<!-- language="C" -->
- *
- *   GtkWidget *toggle;
- *
- *   ...
- *
- *   toggle = gtk_check_button_new_with_label ("Open file read-only");
- *   gtk_widget_show (toggle);
- *   gtk_file_chooser_set_extra_widget (my_file_chooser, toggle);
- * }
- * ]|
- *
- * If you want to set more than one extra widget in the file
- * chooser, you can a container such as a #GtkBox or a #GtkGrid
- * and include your widgets in it.  Then, set the container as
- * the whole extra widget.
+ * that are not present in the default design, by using
+ * gtk_file_chooser_add_choice(). Each choice has an identifier and
+ * a user visible label; additionally, each choice can have multiple
+ * options. If a choice has no option, it will be rendered as a
+ * check button with the given label; if a choice has options, it will
+ * be rendered as a combo box.
  */
 
 
@@ -385,12 +368,6 @@ gtk_file_chooser_default_init (GtkFileChooserInterface *iface)
                                                              P_("Whether to display a label with the name of 
the previewed file."),
                                                              TRUE,
                                                              GTK_PARAM_READWRITE));
-  g_object_interface_install_property (iface,
-                                       g_param_spec_object ("extra-widget",
-                                                            P_("Extra widget"),
-                                                            P_("Application supplied widget for extra 
options."),
-                                                            GTK_TYPE_WIDGET,
-                                                            GTK_PARAM_READWRITE));
   g_object_interface_install_property (iface,
                                        g_param_spec_boolean ("select-multiple",
                                                              P_("Select Multiple"),
@@ -650,10 +627,7 @@ gtk_file_chooser_set_current_name  (GtkFileChooser *chooser,
  * text entry for “Name”.
  *
  * This is meant to be used in save dialogs, to get the currently typed filename
- * when the file itself does not exist yet.  For example, an application that
- * adds a custom extra widget to the file chooser for “file format” may want to
- * change the extension of the typed filename based on the chosen format, say,
- * from “.jpg” to “.png”.
+ * when the file itself does not exist yet.
  *
  * Returns: The raw text from the file chooser’s “Name” entry.  Free this with
  * g_free().  Note that this string is not a full pathname or URI; it is
@@ -1107,50 +1081,6 @@ gtk_file_chooser_remove_shortcut_folder (GtkFileChooser  *chooser,
   return GTK_FILE_CHOOSER_GET_IFACE (chooser)->remove_shortcut_folder (chooser, folder, error);
 }
 
-/**
- * gtk_file_chooser_set_extra_widget:
- * @chooser: a #GtkFileChooser
- * @extra_widget: widget for extra options
- * 
- * Sets an application-supplied widget to provide extra options to the user.
- **/
-void
-gtk_file_chooser_set_extra_widget (GtkFileChooser *chooser,
-                                   GtkWidget      *extra_widget)
-{
-  g_return_if_fail (GTK_IS_FILE_CHOOSER (chooser));
-
-  g_object_set (chooser, "extra-widget", extra_widget, NULL);
-}
-
-/**
- * gtk_file_chooser_get_extra_widget:
- * @chooser: a #GtkFileChooser
- *
- * Gets the current extra widget; see
- * gtk_file_chooser_set_extra_widget().
- *
- * Returns: (nullable) (transfer none): the current extra widget, or %NULL
- **/
-GtkWidget *
-gtk_file_chooser_get_extra_widget (GtkFileChooser *chooser)
-{
-  GtkWidget *extra_widget;
-  
-  g_return_val_if_fail (GTK_IS_FILE_CHOOSER (chooser), NULL);
-
-  g_object_get (chooser, "extra-widget", &extra_widget, NULL);
-  
-  /* Horrid hack; g_object_get() refs returned objects but
-   * that contradicts the memory management conventions
-   * for accessors.
-   */
-  if (extra_widget)
-    g_object_unref (extra_widget);
-
-  return extra_widget;
-}
-
 /**
  * gtk_file_chooser_add_filter:
  * @chooser: a #GtkFileChooser
@@ -1372,8 +1302,6 @@ gtk_file_chooser_get_do_overwrite_confirmation (GtkFileChooser *chooser)
  * a value using gtk_file_chooser_set_choice() before the dialog is shown,
  * and you can obtain the user-selected value in the ::response signal handler
  * using gtk_file_chooser_get_choice().
- *
- * Compare gtk_file_chooser_set_extra_widget().
  */
 void
 gtk_file_chooser_add_choice (GtkFileChooser  *chooser,
diff --git a/gtk/gtkfilechooser.h b/gtk/gtkfilechooser.h
index 98cb71545a..ea684d6715 100644
--- a/gtk/gtkfilechooser.h
+++ b/gtk/gtkfilechooser.h
@@ -205,14 +205,6 @@ gboolean   gtk_file_chooser_get_use_preview_label     (GtkFileChooser *chooser);
 GDK_AVAILABLE_IN_ALL
 GFile *gtk_file_chooser_get_preview_file     (GtkFileChooser *chooser);
 
-/* Extra widget
- */
-GDK_AVAILABLE_IN_ALL
-void       gtk_file_chooser_set_extra_widget (GtkFileChooser *chooser,
-                                             GtkWidget      *extra_widget);
-GDK_AVAILABLE_IN_ALL
-GtkWidget *gtk_file_chooser_get_extra_widget (GtkFileChooser *chooser);
-
 /* List of user selectable filters
  */
 GDK_AVAILABLE_IN_ALL
diff --git a/gtk/gtkfilechooserbutton.c b/gtk/gtkfilechooserbutton.c
index c14d01ead9..03e46ab791 100644
--- a/gtk/gtkfilechooserbutton.c
+++ b/gtk/gtkfilechooserbutton.c
@@ -925,7 +925,6 @@ gtk_file_chooser_button_set_property (GObject      *object,
     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:
     case GTK_FILE_CHOOSER_PROP_DO_OVERWRITE_CONFIRMATION:
     case GTK_FILE_CHOOSER_PROP_CREATE_FOLDERS:
@@ -971,7 +970,6 @@ gtk_file_chooser_button_get_property (GObject    *object,
     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:
     case GTK_FILE_CHOOSER_PROP_DO_OVERWRITE_CONFIRMATION:
diff --git a/gtk/gtkfilechoosernative.c b/gtk/gtkfilechoosernative.c
index a722587efb..c08c84fd54 100644
--- a/gtk/gtkfilechoosernative.c
+++ b/gtk/gtkfilechoosernative.c
@@ -165,8 +165,6 @@
  * used. It supports many of the features that #GtkFileChooserDialog
  * does, but there are some things it does not handle:
  *
- * * Extra widgets added with gtk_file_chooser_set_extra_widget().
- *
  * * Use of custom previews by connecting to #GtkFileChooser::update-preview.
  *
  * * Any #GtkFileFilter added using a mimetype or custom filter.
@@ -182,8 +180,6 @@
  * be a GTK+ file chooser. In this situation, the following things are not
  * supported and will be silently ignored:
  *
- * * Extra widgets added with gtk_file_chooser_set_extra_widget().
- *
  * * Use of custom previews by connecting to #GtkFileChooser::update-preview.
  *
  * * Any #GtkFileFilter added with a custom filter.
@@ -194,10 +190,6 @@
  * file chooser dialogs. Some features provided by #GtkFileChooserDialog are
  * not supported:
  *
- * * Extra widgets added with gtk_file_chooser_set_extra_widget(), unless the
- *   widget is an instance of GtkLabel, in which case the label text will be used
- *   to set the NSSavePanel message instance property.
- *
  * * Use of custom previews by connecting to #GtkFileChooser::update-preview.
  *
  * * Any #GtkFileFilter added with a custom filter.
diff --git a/gtk/gtkfilechoosernativequartz.c b/gtk/gtkfilechoosernativequartz.c
index 89fad7b3af..cb2e071a26 100644
--- a/gtk/gtkfilechoosernativequartz.c
+++ b/gtk/gtkfilechoosernativequartz.c
@@ -448,19 +448,8 @@ gtk_file_chooser_native_quartz_show (GtkFileChooserNative *self)
   guint update_preview_signal;
   GSList *filters, *l;
   int n_filters, i;
-  GtkWidget *extra_widget = NULL;
   char *message = NULL;
 
-  extra_widget = gtk_file_chooser_get_extra_widget (GTK_FILE_CHOOSER (self));
-  // if the extra_widget is a GtkLabel, then use its text to set the dialog message
-  if (extra_widget != NULL)
-    {
-      if (!GTK_IS_LABEL (extra_widget))
-        return FALSE;
-      else
-        message = g_strdup (gtk_label_get_text (GTK_LABEL (extra_widget)));
-    }
-
   update_preview_signal = g_signal_lookup ("update-preview", GTK_TYPE_FILE_CHOOSER);
   if (g_signal_has_handler_pending (self, update_preview_signal, 0, TRUE))
     return FALSE;
diff --git a/gtk/gtkfilechoosernativewin32.c b/gtk/gtkfilechoosernativewin32.c
index e1534a5696..c368f84269 100644
--- a/gtk/gtkfilechoosernativewin32.c
+++ b/gtk/gtkfilechoosernativewin32.c
@@ -877,10 +877,6 @@ gtk_file_chooser_native_win32_show (GtkFileChooserNative *self)
   GSList *filters, *l;
   int n_filters, i;
 
-  if (gtk_file_chooser_get_extra_widget (GTK_FILE_CHOOSER (self)) != NULL &&
-      self->choices == NULL)
-    return FALSE;
-
   update_preview_signal = g_signal_lookup ("update-preview", GTK_TYPE_FILE_CHOOSER);
   if (g_signal_has_handler_pending (self, update_preview_signal, 0, TRUE))
     return FALSE;
diff --git a/gtk/gtkfilechooserutils.c b/gtk/gtkfilechooserutils.c
index fe71729933..7d39368729 100644
--- a/gtk/gtkfilechooserutils.c
+++ b/gtk/gtkfilechooserutils.c
@@ -99,9 +99,6 @@ _gtk_file_chooser_install_properties (GObjectClass *klass)
   g_object_class_override_property (klass,
                                    GTK_FILE_CHOOSER_PROP_ACTION,
                                    "action");
-  g_object_class_override_property (klass,
-                                   GTK_FILE_CHOOSER_PROP_EXTRA_WIDGET,
-                                   "extra-widget");
   g_object_class_override_property (klass,
                                    GTK_FILE_CHOOSER_PROP_FILTER,
                                    "filter");
diff --git a/gtk/gtkfilechooserutils.h b/gtk/gtkfilechooserutils.h
index 6938791515..9a4e4cbb14 100644
--- a/gtk/gtkfilechooserutils.h
+++ b/gtk/gtkfilechooserutils.h
@@ -34,7 +34,6 @@ typedef enum {
   GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET,
   GTK_FILE_CHOOSER_PROP_PREVIEW_WIDGET_ACTIVE,
   GTK_FILE_CHOOSER_PROP_USE_PREVIEW_LABEL,
-  GTK_FILE_CHOOSER_PROP_EXTRA_WIDGET,
   GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE,
   GTK_FILE_CHOOSER_PROP_SHOW_HIDDEN,
   GTK_FILE_CHOOSER_PROP_DO_OVERWRITE_CONFIRMATION,
diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index 832f9d04c2..225c502ba3 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -3315,10 +3315,6 @@ gtk_file_chooser_widget_set_property (GObject      *object,
       update_preview_widget_visibility (impl);
       break;
 
-    case GTK_FILE_CHOOSER_PROP_EXTRA_WIDGET:
-      set_extra_widget (impl, g_value_get_object (value));
-      break;
-
     case GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE:
       {
         gboolean select_multiple = g_value_get_boolean (value);
@@ -3405,10 +3401,6 @@ gtk_file_chooser_widget_get_property (GObject    *object,
       g_value_set_boolean (value, priv->use_preview_label);
       break;
 
-    case GTK_FILE_CHOOSER_PROP_EXTRA_WIDGET:
-      g_value_set_object (value, priv->extra_widget);
-      break;
-
     case GTK_FILE_CHOOSER_PROP_SELECT_MULTIPLE:
       g_value_set_boolean (value, priv->select_multiple);
       break;
diff --git a/tests/testgtk.c b/tests/testgtk.c
index 6c65009cfc..98ee51798c 100644
--- a/tests/testgtk.c
+++ b/tests/testgtk.c
@@ -5786,25 +5786,6 @@ native_overwrite_confirmation_toggle (GtkWidget *checkbutton,
                                                   gtk_toggle_button_get_active 
(GTK_TOGGLE_BUTTON(checkbutton)));
 }
 
-static void
-native_extra_widget_toggle (GtkWidget *checkbutton,
-                            GtkFileChooserNative *native)
-{
-  gboolean extra_widget = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON(checkbutton));
-
-  if (extra_widget)
-    {
-      GtkWidget *extra = gtk_check_button_new_with_label ("Extra toggle");
-      gtk_widget_show (extra);
-      gtk_file_chooser_set_extra_widget (GTK_FILE_CHOOSER (native), extra);
-    }
-  else
-    {
-      gtk_file_chooser_set_extra_widget (GTK_FILE_CHOOSER (native), NULL);
-    }
-}
-
-
 static void
 native_visible_notify_show (GObject    *object,
                             GParamSpec *pspec,
@@ -6028,11 +6009,6 @@ create_native_dialogs (GtkWidget *widget)
                         G_CALLBACK (native_overwrite_confirmation_toggle), native);
       gtk_container_add (GTK_CONTAINER (box), check_button);
 
-      check_button = gtk_check_button_new_with_label ("Extra widget");
-      g_signal_connect (check_button, "toggled",
-                        G_CALLBACK (native_extra_widget_toggle), native);
-      gtk_container_add (GTK_CONTAINER (box), check_button);
-
       show_button = gtk_button_new_with_label ("Show");
       hide_button = gtk_button_new_with_label ("Hide");
       gtk_widget_set_sensitive (hide_button, FALSE);
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