[gtk+] GtkPlacesSidebar: support switching locations for XDS drag types

[Nelson Benítez León <nbenitez src gnome org>]

commit 588ffa8c3241eff2f8e2d99b911a6bcb539347bd
Author: Nelson Benítez León <nbenitezl+gnome gmail com>
Date:   Sat Sep 7 11:01:33 2013 +0200

    GtkPlacesSidebar: support switching locations for XDS drag types
    
    Make GtkPlacesSidebar also change locations when hovered
    by XDS dnd targets (eg. dragging a file from file-roller).
    
    Part of bug 707679

 gtk/gtkplacessidebar.c |   18 +++++++++++++++---
 1 files changed, 15 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkplacessidebar.c b/gtk/gtkplacessidebar.c
index b93f7f4..8dcca81 100644
--- a/gtk/gtkplacessidebar.c
+++ b/gtk/gtkplacessidebar.c
@@ -289,7 +289,8 @@ static void  check_unmount_and_eject                   (GMount *mount,
 /* Identifiers for target types */
 enum {
        GTK_TREE_MODEL_ROW,
-       TEXT_URI_LIST
+       TEXT_URI_LIST,
+       XDND_DIRECT_SAVE
 };
 
 /* Target types for dragging from the shortcuts list */
@@ -300,7 +301,8 @@ static const GtkTargetEntry dnd_source_targets[] = {
 /* Target types for dropping into the shortcuts list */
 static const GtkTargetEntry dnd_drop_targets [] = {
        { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, GTK_TREE_MODEL_ROW },
-       { "text/uri-list", 0, TEXT_URI_LIST }
+       { "text/uri-list", 0, TEXT_URI_LIST },
+       { "XdndDirectSave0", 0, XDND_DIRECT_SAVE } /* XDS Protocol Type */
 };
 
 /* Drag and drop interface declarations */
@@ -1591,10 +1593,12 @@ drag_motion_callback (GtkTreeView *tree_view,
        GtkTreeIter iter;
        gboolean res;
        gboolean drop_as_bookmarks;
+       gboolean valid_xds_drag;
        char *drop_target_uri = NULL;
 
        action = 0;
        drop_as_bookmarks = FALSE;
+       valid_xds_drag = FALSE;
        path = NULL;
 
        if (!sidebar->drag_data_received) {
@@ -1613,6 +1617,14 @@ drag_motion_callback (GtkTreeView *tree_view,
            sidebar->drag_data_info == GTK_TREE_MODEL_ROW) {
                /* Dragging bookmarks always moves them to another position in the bookmarks list */
                action = GDK_ACTION_MOVE;
+       } else if (sidebar->drag_data_received &&
+                  sidebar->drag_data_info == XDND_DIRECT_SAVE) {
+               gtk_tree_model_get_iter (GTK_TREE_MODEL (sidebar->store), &iter, path);
+               gtk_tree_model_get (GTK_TREE_MODEL (sidebar->store),
+                                   &iter,
+                                   PLACES_SIDEBAR_COLUMN_URI, &drop_target_uri,
+                                   -1);
+               valid_xds_drag = TRUE;
        } else {
                /* URIs are being dragged.  See if the caller wants to handle a
                 * file move/copy operation itself, or if we should only try to
@@ -1655,7 +1667,7 @@ drag_motion_callback (GtkTreeView *tree_view,
        }
 
  out:
-       if (action != 0) {
+       if (action != 0 || valid_xds_drag) {
                check_switch_location_timer (sidebar, drop_target_uri);
                start_drop_feedback (sidebar, path, pos, drop_as_bookmarks);
        } else {