[gtk+] gtkfilechooserwidget: show drop hints on gtkplacessidebar



commit 43a4843b9caf745823210fdbca95123cd560e48b
Author: Carlos Soriano <csoriano gnome org>
Date:   Sat Apr 11 17:36:41 2015 +0200

    gtkfilechooserwidget: show drop hints on gtkplacessidebar
    
    Now with the API addition on gtkplacessidebar, we can show some
    hints for the drop targets.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=747793

 gtk/gtkfilechooserwidget.c     |   25 +++++++++++++++++++++++++
 gtk/ui/gtkfilechooserwidget.ui |    2 ++
 2 files changed, 27 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index 232640c..ec1645a 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -1645,6 +1645,16 @@ file_list_drag_drop_cb (GtkWidget             *widget,
   return TRUE;
 }
 
+static void
+file_list_drag_begin_cb (GtkWidget            *widget,
+                         GdkDragContext       *context,
+                         GtkFileChooserWidget *impl)
+{
+  gtk_places_sidebar_set_drop_targets_visible (GTK_PLACES_SIDEBAR (impl->priv->places_sidebar),
+                                               TRUE,
+                                               context);
+}
+
 /* Disable the normal tree drag motion handler, it makes it look like you're
    dropping the dragged item onto a tree item */
 static gboolean
@@ -1659,6 +1669,19 @@ file_list_drag_motion_cb (GtkWidget             *widget,
   return TRUE;
 }
 
+static void
+file_list_drag_end_cb (GtkWidget      *widget,
+                       GdkDragContext *context,
+                       gpointer        user_data)
+{
+  GtkFileChooserWidget *impl;
+
+  impl = GTK_FILE_CHOOSER_WIDGET (user_data);
+  gtk_places_sidebar_set_drop_targets_visible (GTK_PLACES_SIDEBAR (impl->priv->places_sidebar),
+                                               FALSE,
+                                               context);
+}
+
 /* Sensitizes the "Copy file’s location" and other context menu items if there is actually
  * a selection active.
  */
@@ -7518,7 +7541,9 @@ gtk_file_chooser_widget_class_init (GtkFileChooserWidgetClass *class)
   gtk_widget_class_bind_template_callback (widget_class, file_list_query_tooltip_cb);
   gtk_widget_class_bind_template_callback (widget_class, list_button_press_event_cb);
   gtk_widget_class_bind_template_callback (widget_class, list_row_activated);
+  gtk_widget_class_bind_template_callback (widget_class, file_list_drag_begin_cb);
   gtk_widget_class_bind_template_callback (widget_class, file_list_drag_motion_cb);
+  gtk_widget_class_bind_template_callback (widget_class, file_list_drag_end_cb);
   gtk_widget_class_bind_template_callback (widget_class, list_selection_changed);
   gtk_widget_class_bind_template_callback (widget_class, list_cursor_changed);
   gtk_widget_class_bind_template_callback (widget_class, filter_combo_changed);
diff --git a/gtk/ui/gtkfilechooserwidget.ui b/gtk/ui/gtkfilechooserwidget.ui
index 9af256a..2e46d30 100644
--- a/gtk/ui/gtkfilechooserwidget.ui
+++ b/gtk/ui/gtkfilechooserwidget.ui
@@ -175,7 +175,9 @@
                                 <signal name="button-press-event" handler="list_button_press_event_cb" 
swapped="no"/>
                                 <signal name="drag-data-received" handler="file_list_drag_data_received_cb" 
swapped="no"/>
                                 <signal name="drag-drop" handler="file_list_drag_drop_cb" swapped="no"/>
+                                <signal name="drag-begin" handler="file_list_drag_begin_cb" swapped="no"/>
                                 <signal name="drag-motion" handler="file_list_drag_motion_cb" swapped="no"/>
+                                <signal name="drag-end" handler="file_list_drag_end_cb" swapped="no"/>
                                 <signal name="key-press-event" handler="browse_files_key_press_event_cb" 
swapped="no"/>
                                 <signal name="popup-menu" handler="list_popup_menu_cb" swapped="no"/>
                                 <signal name="query-tooltip" handler="file_list_query_tooltip_cb" 
swapped="no"/>


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