Adding upstream version 3.38.2.upstream/3.38.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 305 insertions, 0 deletions

diff --git a/src/nautilus-list-view-dnd.c b/src/nautilus-list-view-dnd.c
new file mode 100644
index 0000000..2191006
--- /dev/null
+++ b/src/nautilus-list-view-dnd.c
@@ -0,0 +1,305 @@
+/* nautilus-list-view-dnd.c
+ *
+ * Copyright (C) 2015 Carlos Soriano <csoriano@gnome.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "nautilus-list-view-dnd.h"
+#include "nautilus-list-view-private.h"
+
+static GtkTargetList *source_target_list = NULL;
+
+static void
+drag_info_data_free (NautilusListView *list_view);
+
+static void
+drag_data_get_callback (GtkWidget        *widget,
+                        GdkDragContext   *context,
+                        GtkSelectionData *selection_data,
+                        guint             info,
+                        guint             time,
+                        gpointer          user_data)
+{
+    GtkTreeView *tree_view;
+    GtkTreeModel *model;
+    NautilusListView *list_view;
+
+    tree_view = GTK_TREE_VIEW (widget);
+    list_view = NAUTILUS_LIST_VIEW (user_data);
+
+    model = gtk_tree_view_get_model (tree_view);
+
+    if (model == NULL)
+    {
+        return;
+    }
+
+    if (list_view->details->drag_source_info == NULL ||
+        list_view->details->drag_source_info->selection_cache == NULL)
+    {
+        return;
+    }
+
+    nautilus_drag_drag_data_get_from_cache (list_view->details->drag_source_info->selection_cache,
+                                            context, selection_data, info, time);
+}
+
+static cairo_surface_t *
+get_drag_surface (NautilusListView *view)
+{
+    GtkTreeModel *model;
+    GtkTreePath *path;
+    GtkTreeIter iter;
+    cairo_surface_t *ret;
+    GdkRectangle cell_area;
+
+    ret = NULL;
+
+    if (gtk_tree_view_get_path_at_pos (view->details->tree_view,
+                                       view->details->drag_x,
+                                       view->details->drag_y,
+                                       &path, NULL, NULL, NULL))
+    {
+        model = gtk_tree_view_get_model (view->details->tree_view);
+        gtk_tree_model_get_iter (model, &iter, path);
+        gtk_tree_model_get (model, &iter,
+                            nautilus_list_model_get_column_id_from_zoom_level (view->details->zoom_level),
+                            &ret,
+                            -1);
+    }
+
+    gtk_tree_view_get_cell_area (view->details->tree_view,
+                                 path,
+                                 view->details->file_name_column,
+                                 &cell_area);
+
+    gtk_tree_path_free (path);
+
+    return ret;
+}
+
+/* iteration glue struct */
+typedef struct
+{
+    NautilusListView *view;
+    NautilusDragEachSelectedItemDataGet iteratee;
+    gpointer iteratee_data;
+} ListGetDataBinderContext;
+
+static void
+item_get_data_binder (GtkTreeModel *model,
+                      GtkTreePath  *path,
+                      GtkTreeIter  *iter,
+                      gpointer      data)
+{
+    ListGetDataBinderContext *context = data;
+    NautilusFile *file;
+    GtkTreeView *treeview;
+    GtkTreeViewColumn *column;
+    GdkRectangle cell_area;
+    int drag_begin_y = 0;
+    char *uri;
+
+    treeview = nautilus_list_model_get_drag_view (context->view->details->model,
+                                                  NULL,
+                                                  &drag_begin_y);
+    column = gtk_tree_view_get_column (treeview, 0);
+
+    file = nautilus_list_model_file_for_path (NAUTILUS_LIST_MODEL (model), path);
+    if (file == NULL)
+    {
+        return;
+    }
+
+    gtk_tree_view_get_cell_area (treeview,
+                                 path,
+                                 column,
+                                 &cell_area);
+
+    uri = nautilus_file_get_activation_uri (file);
+
+    nautilus_file_unref (file);
+
+    /* pass the uri, mouse-relative x/y and icon width/height */
+    context->iteratee (uri,
+                       0,
+                       cell_area.y - drag_begin_y,
+                       cell_area.width,
+                       cell_area.height,
+                       context->iteratee_data);
+
+    g_free (uri);
+}
+
+static void
+each_item_get_data_binder (NautilusDragEachSelectedItemDataGet iteratee,
+                           gpointer                            iterator_context,
+                           gpointer                            data)
+{
+    NautilusListView *view = NAUTILUS_LIST_VIEW (iterator_context);
+    ListGetDataBinderContext context;
+    GtkTreeSelection *selection;
+
+    context.view = view;
+    context.iteratee = iteratee;
+    context.iteratee_data = data;
+
+    selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (view->details->tree_view));
+    gtk_tree_selection_selected_foreach (selection, item_get_data_binder, &context);
+}
+
+static void
+drag_begin_callback (GtkWidget        *widget,
+                     GdkDragContext   *context,
+                     NautilusListView *view)
+{
+    cairo_surface_t *surface;
+    NautilusWindow *window;
+    GList *dragged_files;
+
+    window = nautilus_files_view_get_window (NAUTILUS_FILES_VIEW (view));
+    surface = get_drag_surface (view);
+    if (surface)
+    {
+        gtk_drag_set_icon_surface (context, surface);
+        cairo_surface_destroy (surface);
+    }
+    else
+    {
+        gtk_drag_set_icon_default (context);
+    }
+
+    view->details->drag_button = 0;
+    view->details->drag_started = TRUE;
+
+    view->details->drag_source_info->selection_cache = nautilus_drag_create_selection_cache (view,
+                                                                                             each_item_get_data_binder);
+
+    dragged_files = nautilus_drag_file_list_from_selection_list (view->details->drag_source_info->selection_cache);
+    if (nautilus_file_list_are_all_folders (dragged_files))
+    {
+        nautilus_window_start_dnd (window, context);
+    }
+    g_list_free_full (dragged_files, g_object_unref);
+}
+
+static void
+drag_end_callback (GtkWidget        *widget,
+                   GdkDragContext   *context,
+                   NautilusListView *list_view)
+{
+    NautilusWindow *window;
+
+    window = nautilus_files_view_get_window (NAUTILUS_FILES_VIEW (list_view));
+
+    nautilus_window_end_dnd (window, context);
+
+    drag_info_data_free (list_view);
+}
+
+static void
+drag_info_data_free (NautilusListView *list_view)
+{
+    nautilus_drag_destroy_selection_list (list_view->details->drag_source_info->selection_cache);
+    list_view->details->drag_source_info->selection_cache = NULL;
+
+    g_free (list_view->details->drag_source_info);
+    list_view->details->drag_source_info = NULL;
+
+    g_signal_handlers_disconnect_by_func (list_view->details->tree_view, drag_begin_callback, list_view);
+    g_signal_handlers_disconnect_by_func (list_view->details->tree_view, drag_data_get_callback, list_view);
+    g_signal_handlers_disconnect_by_func (list_view->details->tree_view, drag_end_callback, list_view);
+}
+
+NautilusDragInfo *
+nautilus_list_view_dnd_get_drag_source_data (NautilusListView *list_view,
+                                             GdkDragContext   *context)
+{
+    GtkTreeView *tree_view;
+    GtkTreeModel *model;
+
+    tree_view = GTK_TREE_VIEW (list_view->details->tree_view);
+
+    model = gtk_tree_view_get_model (tree_view);
+
+    if (model == NULL)
+    {
+        return NULL;
+    }
+
+    if (list_view->details->drag_source_info == NULL ||
+        list_view->details->drag_source_info->selection_cache == NULL)
+    {
+        return NULL;
+    }
+
+    return list_view->details->drag_source_info;
+}
+
+void
+nautilus_list_view_dnd_init (NautilusListView *list_view)
+{
+    if (list_view->details->drag_source_info != NULL)
+    {
+        return;
+    }
+
+    list_view->details->drag_source_info = g_new0 (NautilusDragInfo, 1);
+
+    g_signal_connect_object (list_view->details->tree_view, "drag-begin",
+                             G_CALLBACK (drag_begin_callback), list_view, 0);
+    g_signal_connect_object (list_view->details->tree_view, "drag-end",
+                             G_CALLBACK (drag_end_callback), list_view, 0);
+    g_signal_connect_object (list_view->details->tree_view, "drag-data-get",
+                             G_CALLBACK (drag_data_get_callback), list_view, 0);
+}
+
+void
+nautilus_list_view_dnd_drag_begin (NautilusListView *list_view,
+                                   gdouble           offset_x,
+                                   gdouble           offset_y,
+                                   const GdkEvent   *event)
+{
+    if (list_view->details->drag_button == 0)
+    {
+        return;
+    }
+
+    if (!source_target_list)
+    {
+        source_target_list = nautilus_list_model_get_drag_target_list ();
+    }
+
+    if (gtk_drag_check_threshold (GTK_WIDGET (list_view->details->tree_view),
+                                  list_view->details->drag_x,
+                                  list_view->details->drag_y,
+                                  list_view->details->drag_x + offset_x,
+                                  list_view->details->drag_y + offset_y))
+    {
+        guint32 actions;
+
+        actions = GDK_ACTION_MOVE | GDK_ACTION_COPY | GDK_ACTION_LINK | GDK_ACTION_ASK;
+        list_view->details->drag_source_info->source_actions = actions;
+        gtk_drag_begin_with_coordinates (GTK_WIDGET (list_view->details->tree_view),
+                                         source_target_list,
+                                         actions,
+                                         list_view->details->drag_button,
+                                         (GdkEvent *) event,
+                                         -1,
+                                         -1);
+    }
+}