moving from https://github.com/perberos/mate-desktop-environment

author: Perberos <[email protected]> 2011-12-01 22:24:23 -0300
committer: Perberos <[email protected]> 2011-12-01 22:24:23 -0300
commit: 0e004c696b0e68b2cff37a4c3315b022a35eaf43 (patch)
tree: 43261e815529cb9518ed7be37af13b846af8b26b /libcaja-private/caja-tree-view-drag-dest.c
download: caja-0e004c696b0e68b2cff37a4c3315b022a35eaf43.tar.bz2
caja-0e004c696b0e68b2cff37a4c3315b022a35eaf43.tar.xz
1 files changed, 1306 insertions, 0 deletions
diff --git a/libcaja-private/caja-tree-view-drag-dest.c b/libcaja-private/caja-tree-view-drag-dest.c
new file mode 100644
index 00000000..528ff029
--- /dev/null
+++ b/libcaja-private/caja-tree-view-drag-dest.c
@@ -0,0 +1,1306 @@
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
+
+/*
+ * Caja
+ *
+ * Copyright (C) 2002 Sun Microsystems, Inc.
+ *
+ * Caja 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 2 of the
+ * License, or (at your option) any later version.
+ *
+ * Caja 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * Author: Dave Camp <[email protected]>
+ * XDS support: Benedikt Meurer <[email protected]> (adapted by Amos Brocco <[email protected]>)
+ */
+
+/* caja-tree-view-drag-dest.c: Handles drag and drop for treeviews which
+ * contain a hierarchy of files
+ */
+
+#include <config.h>
+#include "caja-tree-view-drag-dest.h"
+
+#include <eel/eel-gtk-macros.h>
+#include <gtk/gtk.h>
+#include "caja-file-dnd.h"
+#include "caja-file-changes-queue.h"
+#include "caja-icon-dnd.h"
+#include "caja-link.h"
+#include "caja-marshal.h"
+#include "caja-debug-log.h"
+#include <stdio.h>
+#include <string.h>
+
+#define AUTO_SCROLL_MARGIN 20
+
+#define HOVER_EXPAND_TIMEOUT 1
+
+struct _CajaTreeViewDragDestDetails
+{
+ GtkTreeView *tree_view;
+
+ gboolean drop_occurred;
+
+ gboolean have_drag_data;
+ guint drag_type;
+ GtkSelectionData *drag_data;
+ GList *drag_list;
+
+ guint highlight_id;
+ guint scroll_id;
+ guint expand_id;
+
+ char *direct_save_uri;
+};
+
+enum
+{
+ GET_ROOT_URI,
+ GET_FILE_FOR_PATH,
+ MOVE_COPY_ITEMS,
+ HANDLE_NETSCAPE_URL,
+ HANDLE_URI_LIST,
+ HANDLE_TEXT,
+ HANDLE_RAW,
+ LAST_SIGNAL
+};
+
+static void caja_tree_view_drag_dest_init (CajaTreeViewDragDest *dest);
+static void caja_tree_view_drag_dest_class_init (CajaTreeViewDragDestClass *class);
+
+static guint signals[LAST_SIGNAL];
+
+G_DEFINE_TYPE (CajaTreeViewDragDest, caja_tree_view_drag_dest,
+ G_TYPE_OBJECT);
+#define parent_class caja_tree_view_drag_dest_parent_class
+
+static const GtkTargetEntry drag_types [] =
+{
+ { CAJA_ICON_DND_MATE_ICON_LIST_TYPE, 0, CAJA_ICON_DND_MATE_ICON_LIST },
+ /* prefer "_NETSCAPE_URL" over "text/uri-list" to satisfy web browsers. */
+ { CAJA_ICON_DND_NETSCAPE_URL_TYPE, 0, CAJA_ICON_DND_NETSCAPE_URL },
+ { CAJA_ICON_DND_URI_LIST_TYPE, 0, CAJA_ICON_DND_URI_LIST },
+ { CAJA_ICON_DND_KEYWORD_TYPE, 0, CAJA_ICON_DND_KEYWORD },
+ { CAJA_ICON_DND_XDNDDIRECTSAVE_TYPE, 0, CAJA_ICON_DND_XDNDDIRECTSAVE }, /* XDS Protocol Type */
+ { CAJA_ICON_DND_RAW_TYPE, 0, CAJA_ICON_DND_RAW }
+};
+
+
+static void
+gtk_tree_view_vertical_autoscroll (GtkTreeView *tree_view)
+{
+ GdkRectangle visible_rect;
+ GtkAdjustment *vadjustment;
+ GdkWindow *window;
+ int y;
+ int offset;
+ float value;
+
+ window = gtk_tree_view_get_bin_window (tree_view);
+
+#if GTK_CHECK_VERSION(3, 0, 0)
+ vadjustment = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(tree_view));
+#else
+ vadjustment = gtk_tree_view_get_vadjustment(tree_view);
+#endif
+
+ gdk_window_get_pointer (window, NULL, &y, NULL);
+
+ y += gtk_adjustment_get_value (vadjustment);
+
+ gtk_tree_view_get_visible_rect (tree_view, &visible_rect);
+
+ offset = y - (visible_rect.y + 2 * AUTO_SCROLL_MARGIN);
+ if (offset > 0)
+ {
+ offset = y - (visible_rect.y + visible_rect.height - 2 * AUTO_SCROLL_MARGIN);
+ if (offset < 0)
+ {
+ return;
+ }
+ }
+
+ value = CLAMP (gtk_adjustment_get_value (vadjustment) + offset, 0.0,
+ gtk_adjustment_get_upper (vadjustment) - gtk_adjustment_get_page_size (vadjustment));
+ gtk_adjustment_set_value (vadjustment, value);
+}
+
+static int
+scroll_timeout (gpointer data)
+{
+ GtkTreeView *tree_view = GTK_TREE_VIEW (data);
+
+ gtk_tree_view_vertical_autoscroll (tree_view);
+
+ return TRUE;
+}
+
+static void
+remove_scroll_timeout (CajaTreeViewDragDest *dest)
+{
+ if (dest->details->scroll_id)
+ {
+ g_source_remove (dest->details->scroll_id);
+ dest->details->scroll_id = 0;
+ }
+}
+
+static int
+expand_timeout (gpointer data)
+{
+ GtkTreeView *tree_view;
+ GtkTreePath *drop_path;
+
+ tree_view = GTK_TREE_VIEW (data);
+
+ gtk_tree_view_get_drag_dest_row (tree_view, &drop_path, NULL);
+
+ if (drop_path)
+ {
+ gtk_tree_view_expand_row (tree_view, drop_path, FALSE);
+ gtk_tree_path_free (drop_path);
+ }
+
+ return FALSE;
+}
+
+static void
+remove_expand_timeout (CajaTreeViewDragDest *dest)
+{
+ if (dest->details->expand_id)
+ {
+ g_source_remove (dest->details->expand_id);
+ dest->details->expand_id = 0;
+ }
+}
+
+static gboolean
+highlight_expose (GtkWidget *widget,
+ GdkEventExpose *event,
+ gpointer data)
+{
+ GdkWindow *bin_window;
+ int width;
+ int height;
+
+ if (gtk_widget_is_drawable (widget))
+ {
+ bin_window =
+ gtk_tree_view_get_bin_window (GTK_TREE_VIEW (widget));
+
+#if GTK_CHECK_VERSION(3, 0, 0)
+ width = gdk_window_get_width(GDK_WINDOW(bin_window));
+ height = gdk_window_get_height(GDK_WINDOW(bin_window));
+#else
+ gdk_drawable_get_size(bin_window, &width, &height);
+#endif
+
+
+ gtk_paint_focus (gtk_widget_get_style (widget),
+ bin_window,
+ gtk_widget_get_state (widget),
+ NULL,
+ widget,
+ "treeview-drop-indicator",
+ 0, 0, width, height);
+ }
+
+ return FALSE;
+}
+
+static void
+set_widget_highlight (CajaTreeViewDragDest *dest, gboolean highlight)
+{
+ if (!highlight && dest->details->highlight_id)
+ {
+ g_signal_handler_disconnect (dest->details->tree_view,
+ dest->details->highlight_id);
+ dest->details->highlight_id = 0;
+ gtk_widget_queue_draw (GTK_WIDGET (dest->details->tree_view));
+ }
+
+ if (highlight && !dest->details->highlight_id)
+ {
+ dest->details->highlight_id =
+ g_signal_connect_object (dest->details->tree_view,
+ "expose_event",
+ G_CALLBACK (highlight_expose),
+ dest, 0);
+ gtk_widget_queue_draw (GTK_WIDGET (dest->details->tree_view));
+ }
+}
+
+static void
+set_drag_dest_row (CajaTreeViewDragDest *dest,
+ GtkTreePath *path)
+{
+ if (path)
+ {
+ set_widget_highlight (dest, FALSE);
+ gtk_tree_view_set_drag_dest_row
+ (dest->details->tree_view,
+ path,
+ GTK_TREE_VIEW_DROP_INTO_OR_BEFORE);
+ }
+ else
+ {
+ set_widget_highlight (dest, TRUE);
+ gtk_tree_view_set_drag_dest_row (dest->details->tree_view,
+ NULL,
+ 0);
+ }
+}
+
+static void
+clear_drag_dest_row (CajaTreeViewDragDest *dest)
+{
+ gtk_tree_view_set_drag_dest_row (dest->details->tree_view, NULL, 0);
+ set_widget_highlight (dest, FALSE);
+}
+
+static gboolean
+get_drag_data (CajaTreeViewDragDest *dest,
+ GdkDragContext *context,
+ guint32 time)
+{
+ GdkAtom target;
+
+ target = gtk_drag_dest_find_target (GTK_WIDGET (dest->details->tree_view),
+ context,
+ NULL);
+
+ if (target == GDK_NONE)
+ {
+ return FALSE;
+ }
+
+ if (target == gdk_atom_intern (CAJA_ICON_DND_XDNDDIRECTSAVE_TYPE, FALSE) &&
+ !dest->details->drop_occurred)
+ {
+ dest->details->drag_type = CAJA_ICON_DND_XDNDDIRECTSAVE;
+ dest->details->have_drag_data = TRUE;
+ return TRUE;
+ }
+
+ gtk_drag_get_data (GTK_WIDGET (dest->details->tree_view),
+ context, target, time);
+
+ return TRUE;
+}
+
+static void
+free_drag_data (CajaTreeViewDragDest *dest)
+{
+ dest->details->have_drag_data = FALSE;
+
+ if (dest->details->drag_data)
+ {
+ gtk_selection_data_free (dest->details->drag_data);
+ dest->details->drag_data = NULL;
+ }
+
+ if (dest->details->drag_list)
+ {
+ caja_drag_destroy_selection_list (dest->details->drag_list);
+ dest->details->drag_list = NULL;
+ }
+
+ g_free (dest->details->direct_save_uri);
+ dest->details->direct_save_uri = NULL;
+}
+
+static char *
+get_root_uri (CajaTreeViewDragDest *dest)
+{
+ char *uri;
+
+ g_signal_emit (dest, signals[GET_ROOT_URI], 0, &uri);
+
+ return uri;
+}
+
+static CajaFile *
+file_for_path (CajaTreeViewDragDest *dest, GtkTreePath *path)
+{
+ CajaFile *file;
+ char *uri;
+
+ if (path)
+ {
+ g_signal_emit (dest, signals[GET_FILE_FOR_PATH], 0, path, &file);
+ }
+ else
+ {
+ uri = get_root_uri (dest);
+
+ file = NULL;
+ if (uri != NULL)
+ {
+ file = caja_file_get_by_uri (uri);
+ }
+
+ g_free (uri);
+ }
+
+ return file;
+}
+
+static GtkTreePath *
+get_drop_path (CajaTreeViewDragDest *dest,
+ GtkTreePath *path)
+{
+ CajaFile *file;
+ GtkTreePath *ret;
+
+ if (!path || !dest->details->have_drag_data)
+ {
+ return NULL;
+ }
+
+ ret = gtk_tree_path_copy (path);
+ file = file_for_path (dest, ret);
+
+ /* Go up the tree until we find a file that can accept a drop */
+ while (file == NULL /* dummy row */ ||
+ !caja_drag_can_accept_info (file,
+ dest->details->drag_type,
+ dest->details->drag_list))
+ {
+ if (gtk_tree_path_get_depth (ret) == 1)
+ {
+ gtk_tree_path_free (ret);
+ ret = NULL;
+ break;
+ }
+ else
+ {
+ gtk_tree_path_up (ret);
+
+ caja_file_unref (file);
+ file = file_for_path (dest, ret);
+ }
+ }
+ caja_file_unref (file);
+
+ return ret;
+}
+
+static char *
+get_drop_target_uri_for_path (CajaTreeViewDragDest *dest,
+ GtkTreePath *path)
+{
+ CajaFile *file;
+ char *target;
+
+ file = file_for_path (dest, path);
+ if (file == NULL)
+ {
+ return NULL;
+ }
+
+ target = caja_file_get_drop_target_uri (file);
+ caja_file_unref (file);
+
+ return target;
+}
+
+static guint
+get_drop_action (CajaTreeViewDragDest *dest,
+ GdkDragContext *context,
+ GtkTreePath *path)
+{
+ char *drop_target;
+ int action;
+
+ if (!dest->details->have_drag_data ||
+ (dest->details->drag_type == CAJA_ICON_DND_MATE_ICON_LIST &&
+ dest->details->drag_list == NULL))
+ {
+ return 0;
+ }
+
+ switch (dest->details->drag_type)
+ {
+ case CAJA_ICON_DND_MATE_ICON_LIST :
+ drop_target = get_drop_target_uri_for_path (dest, path);
+
+ if (!drop_target)
+ {
+ return 0;
+ }
+
+ caja_drag_default_drop_action_for_icons
+ (context,
+ drop_target,
+ dest->details->drag_list,
+ &action);
+
+ g_free (drop_target);
+
+ return action;
+
+ case CAJA_ICON_DND_NETSCAPE_URL:
+ drop_target = get_drop_target_uri_for_path (dest, path);
+
+ if (drop_target == NULL)
+ {
+ return 0;
+ }
+
+ action = caja_drag_default_drop_action_for_netscape_url (context);
+
+ g_free (drop_target);
+
+ return action;
+
+ case CAJA_ICON_DND_URI_LIST :
+ drop_target = get_drop_target_uri_for_path (dest, path);
+
+ if (drop_target == NULL)
+ {
+ return 0;
+ }
+
+ g_free (drop_target);
+
+ return gdk_drag_context_get_suggested_action (context);
+
+ case CAJA_ICON_DND_TEXT:
+ case CAJA_ICON_DND_RAW:
+ case CAJA_ICON_DND_XDNDDIRECTSAVE:
+ return GDK_ACTION_COPY;
+
+ case CAJA_ICON_DND_KEYWORD:
+
+ if (!path)
+ {
+ return 0;
+ }
+
+ return GDK_ACTION_COPY;
+ }
+
+ return 0;
+}
+
+static gboolean
+drag_motion_callback (GtkWidget *widget,
+ GdkDragContext *context,
+ int x,
+ int y,
+ guint32 time,
+ gpointer data)
+{
+ CajaTreeViewDragDest *dest;
+ GtkTreePath *path;
+ GtkTreePath *drop_path, *old_drop_path;
+ GtkTreeModel *model;
+ GtkTreeIter drop_iter;
+ GtkTreeViewDropPosition pos;
+ GdkWindow *bin_window;
+ guint action;
+ gboolean res = TRUE;
+
+ dest = CAJA_TREE_VIEW_DRAG_DEST (data);
+
+ gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
+ x, y, &path, &pos);
+
+
+ if (!dest->details->have_drag_data)
+ {
+ res = get_drag_data (dest, context, time);
+ }
+
+ if (!res)
+ {
+ return FALSE;
+ }
+
+ drop_path = get_drop_path (dest, path);
+
+ action = 0;
+ bin_window = gtk_tree_view_get_bin_window (GTK_TREE_VIEW (widget));
+ if (bin_window != NULL)
+ {
+ int bin_x, bin_y;
+ gdk_window_get_position (bin_window, &bin_x, &bin_y);
+ if (bin_y <= y)
+ {
+ /* ignore drags on the header */
+ action = get_drop_action (dest, context, drop_path);
+ }
+ }
+
+ gtk_tree_view_get_drag_dest_row (GTK_TREE_VIEW (widget), &old_drop_path,
+ NULL);
+
+ if (action)
+ {
+ set_drag_dest_row (dest, drop_path);
+ model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
+ if (drop_path == NULL || (old_drop_path != NULL &&
+ gtk_tree_path_compare (old_drop_path, drop_path) != 0))
+ {
+ remove_expand_timeout (dest);
+ }
+ if (dest->details->expand_id == 0 && drop_path != NULL)
+ {
+ gtk_tree_model_get_iter (model, &drop_iter, drop_path);
+ if (gtk_tree_model_iter_has_child (model, &drop_iter))
+ {
+ dest->details->expand_id = g_timeout_add_seconds (HOVER_EXPAND_TIMEOUT,
+ expand_timeout,
+ dest->details->tree_view);
+ }
+ }
+ }
+ else
+ {
+ clear_drag_dest_row (dest);
+ remove_expand_timeout (dest);
+ }
+
+ if (path)
+ {
+ gtk_tree_path_free (path);
+ }
+
+ if (drop_path)
+ {
+ gtk_tree_path_free (drop_path);
+ }
+
+ if (old_drop_path)
+ {
+ gtk_tree_path_free (old_drop_path);
+ }
+
+ if (dest->details->scroll_id == 0)
+ {
+ dest->details->scroll_id =
+ g_timeout_add (150,
+ scroll_timeout,
+ dest->details->tree_view);
+ }
+
+ gdk_drag_status (context, action, time);
+
+ return TRUE;
+}
+
+static void
+drag_leave_callback (GtkWidget *widget,
+ GdkDragContext *context,
+ guint32 time,
+ gpointer data)
+{
+ CajaTreeViewDragDest *dest;
+
+ dest = CAJA_TREE_VIEW_DRAG_DEST (data);
+
+ clear_drag_dest_row (dest);
+
+ free_drag_data (dest);
+
+ remove_scroll_timeout (dest);
+ remove_expand_timeout (dest);
+}
+
+static char *
+get_drop_target_uri_at_pos (CajaTreeViewDragDest *dest, int x, int y)
+{
+ char *drop_target;
+ GtkTreePath *path;
+ GtkTreePath *drop_path;
+ GtkTreeViewDropPosition pos;
+
+ gtk_tree_view_get_dest_row_at_pos (dest->details->tree_view, x, y,
+ &path, &pos);
+
+ drop_path = get_drop_path (dest, path);
+
+ drop_target = get_drop_target_uri_for_path (dest, drop_path);
+
+ if (path != NULL)
+ {
+ gtk_tree_path_free (path);
+ }
+
+ if (drop_path != NULL)
+ {
+ gtk_tree_path_free (drop_path);
+ }
+
+ return drop_target;
+}
+
+static void
+receive_uris (CajaTreeViewDragDest *dest,
+ GdkDragContext *context,
+ GList *source_uris,
+ int x, int y)
+{
+ char *drop_target;
+ GdkDragAction action, real_action;
+
+ drop_target = get_drop_target_uri_at_pos (dest, x, y);
+ g_assert (drop_target != NULL);
+
+ real_action = gdk_drag_context_get_selected_action (context);
+
+ if (real_action == GDK_ACTION_ASK)
+ {
+ if (caja_drag_selection_includes_special_link (dest->details->drag_list))
+ {
+ /* We only want to move the trash */
+ action = GDK_ACTION_MOVE;
+ }
+ else
+ {
+ action = GDK_ACTION_MOVE | GDK_ACTION_COPY | GDK_ACTION_LINK;
+ }
+ real_action = caja_drag_drop_action_ask
+ (GTK_WIDGET (dest->details->tree_view), action);
+ }
+
+ /* We only want to copy external uris */
+ if (dest->details->drag_type == CAJA_ICON_DND_URI_LIST)
+ {
+ action = GDK_ACTION_COPY;
+ }
+
+ if (real_action > 0)
+ {
+ if (!caja_drag_uris_local (drop_target, source_uris)
+ || real_action != GDK_ACTION_MOVE)
+ {
+ g_signal_emit (dest, signals[MOVE_COPY_ITEMS], 0,
+ source_uris,
+ drop_target,
+ real_action,
+ x, y);
+ }
+ }
+
+ g_free (drop_target);
+}
+
+static void
+receive_dropped_icons (CajaTreeViewDragDest *dest,
+ GdkDragContext *context,
+ int x, int y)
+{
+ GList *source_uris;
+ GList *l;
+
+ /* FIXME: ignore local only moves */
+
+ if (!dest->details->drag_list)
+ {
+ return;
+ }
+
+ source_uris = NULL;
+ for (l = dest->details->drag_list; l != NULL; l = l->next)
+ {
+ source_uris = g_list_prepend (source_uris,
+ ((CajaDragSelectionItem *)l->data)->uri);
+ }
+
+ source_uris = g_list_reverse (source_uris);
+
+ receive_uris (dest, context, source_uris, x, y);
+
+ g_list_free (source_uris);
+}
+
+static void
+receive_dropped_uri_list (CajaTreeViewDragDest *dest,
+ GdkDragContext *context,
+ int x, int y)
+{
+ char *drop_target;
+
+ if (!dest->details->drag_data)
+ {
+ return;
+ }
+
+ drop_target = get_drop_target_uri_at_pos (dest, x, y);
+ g_assert (drop_target != NULL);
+
+ g_signal_emit (dest, signals[HANDLE_URI_LIST], 0,
+ (char*) gtk_selection_data_get_data (dest->details->drag_data),
+ drop_target,
+ gdk_drag_context_get_selected_action (context),
+ x, y);
+
+ g_free (drop_target);
+}
+
+static void
+receive_dropped_text (CajaTreeViewDragDest *dest,
+ GdkDragContext *context,
+ int x, int y)
+{
+ char *drop_target;
+ char *text;
+
+ if (!dest->details->drag_data)
+ {
+ return;
+ }
+
+ drop_target = get_drop_target_uri_at_pos (dest, x, y);
+ g_assert (drop_target != NULL);
+
+ text = gtk_selection_data_get_text (dest->details->drag_data);
+ g_signal_emit (dest, signals[HANDLE_TEXT], 0,
+ (char *) text, drop_target,
+ gdk_drag_context_get_selected_action (context),
+ x, y);
+
+ g_free (text);
+ g_free (drop_target);
+}
+
+static void
+receive_dropped_raw (CajaTreeViewDragDest *dest,
+ const char *raw_data, int length,
+ GdkDragContext *context,
+ int x, int y)
+{
+ char *drop_target;
+
+ if (!dest->details->drag_data)
+ {
+ return;
+ }
+
+ drop_target = get_drop_target_uri_at_pos (dest, x, y);
+ g_assert (drop_target != NULL);
+
+ g_signal_emit (dest, signals[HANDLE_RAW], 0,
+ raw_data, length, drop_target,
+ dest->details->direct_save_uri,
+ gdk_drag_context_get_selected_action (context),
+ x, y);
+
+ g_free (drop_target);
+}
+
+static void
+receive_dropped_netscape_url (CajaTreeViewDragDest *dest,
+ GdkDragContext *context,
+ int x, int y)
+{
+ char *drop_target;
+
+ if (!dest->details->drag_data)
+ {
+ return;
+ }
+
+ drop_target = get_drop_target_uri_at_pos (dest, x, y);
+ g_assert (drop_target != NULL);
+
+ g_signal_emit (dest, signals[HANDLE_NETSCAPE_URL], 0,
+ (char*) gtk_selection_data_get_data (dest->details->drag_data),
+ drop_target,
+ gdk_drag_context_get_selected_action (context),
+ x, y);
+
+ g_free (drop_target);
+}
+
+static void
+receive_dropped_keyword (CajaTreeViewDragDest *dest,
+ GdkDragContext *context,
+ int x, int y)
+{
+ char *drop_target_uri;
+ CajaFile *drop_target_file;
+
+ if (!dest->details->drag_data)
+ {
+ return;
+ }
+
+ drop_target_uri = get_drop_target_uri_at_pos (dest, x, y);
+ g_assert (drop_target_uri != NULL);
+
+ drop_target_file = caja_file_get_by_uri (drop_target_uri);
+
+ if (drop_target_file != NULL)
+ {
+ caja_drag_file_receive_dropped_keyword (drop_target_file,
+ (char *) gtk_selection_data_get_data (dest->details->drag_data));
+ caja_file_unref (drop_target_file);
+ }
+
+ g_free (drop_target_uri);
+}
+
+static gboolean
+receive_xds (CajaTreeViewDragDest *dest,
+ GtkWidget *widget,
+ guint32 time,
+ GdkDragContext *context,
+ int x, int y)
+{
+ GFile *location;
+ const guchar *selection_data;
+ gint selection_format;
+ gint selection_length;
+
+ selection_data = gtk_selection_data_get_data (dest->details->drag_data);
+ selection_format = gtk_selection_data_get_format (dest->details->drag_data);
+ selection_length = gtk_selection_data_get_length (dest->details->drag_data);
+
+ if (selection_format == 8
+ && selection_length == 1
+ && selection_data[0] == 'F')
+ {
+ gtk_drag_get_data (widget, context,
+ gdk_atom_intern (CAJA_ICON_DND_RAW_TYPE,
+ FALSE),
+ time);
+ return FALSE;
+ }
+ else if (selection_format == 8
+ && selection_length == 1
+ && selection_data[0] == 'S')
+ {
+ g_assert (dest->details->direct_save_uri != NULL);
+ location = g_file_new_for_uri (dest->details->direct_save_uri);
+
+ caja_file_changes_queue_file_added (location);
+ caja_file_changes_consume_changes (TRUE);
+
+ g_object_unref (location);
+ }
+ return TRUE;
+}
+
+
+static gboolean
+drag_data_received_callback (GtkWidget *widget,
+ GdkDragContext *context,
+ int x,
+ int y,
+ GtkSelectionData *selection_data,
+ guint info,
+ guint32 time,
+ gpointer data)
+{
+ CajaTreeViewDragDest *dest;
+ const char *tmp;
+ int length;
+ gboolean success, finished;
+
+ dest = CAJA_TREE_VIEW_DRAG_DEST (data);
+
+ if (!dest->details->have_drag_data)
+ {
+ dest->details->have_drag_data = TRUE;
+ dest->details->drag_type = info;
+ dest->details->drag_data =
+ gtk_selection_data_copy (selection_data);
+ if (info == CAJA_ICON_DND_MATE_ICON_LIST)
+ {
+ dest->details->drag_list =
+ caja_drag_build_selection_list (selection_data);
+ }
+ }
+
+ if (dest->details->drop_occurred)
+ {
+ success = FALSE;
+ finished = TRUE;
+ switch (info)
+ {
+ case CAJA_ICON_DND_MATE_ICON_LIST :
+ receive_dropped_icons (dest, context, x, y);
+ success = TRUE;
+ break;
+ case CAJA_ICON_DND_NETSCAPE_URL :
+ receive_dropped_netscape_url (dest, context, x, y);
+ success = TRUE;
+ break;
+ case CAJA_ICON_DND_URI_LIST :
+ receive_dropped_uri_list (dest, context, x, y);
+ success = TRUE;
+ break;
+ case CAJA_ICON_DND_TEXT:
+ receive_dropped_text (dest, context, x, y);
+ success = TRUE;
+ break;
+ case CAJA_ICON_DND_RAW:
+ length = gtk_selection_data_get_length (selection_data);
+ tmp = gtk_selection_data_get_data (selection_data);
+ receive_dropped_raw (dest, tmp, length, context, x, y);
+ success = TRUE;
+ break;
+ case CAJA_ICON_DND_KEYWORD:
+ receive_dropped_keyword (dest, context, x, y);
+ success = TRUE;
+ break;
+ case CAJA_ICON_DND_XDNDDIRECTSAVE:
+ finished = receive_xds (dest, widget, time, context, x, y);
+ success = TRUE;
+ break;
+ }
+
+ if (finished)
+ {
+ dest->details->drop_occurred = FALSE;
+ free_drag_data (dest);
+ gtk_drag_finish (context, success, FALSE, time);
+ }
+ }
+
+ /* appease GtkTreeView by preventing its drag_data_receive
+ * from being called */
+ g_signal_stop_emission_by_name (dest->details->tree_view,
+ "drag_data_received");
+
+ return TRUE;
+}
+
+static char *
+get_direct_save_filename (GdkDragContext *context)
+{
+ guchar *prop_text;
+ gint prop_len;
+
+ if (!gdk_property_get (gdk_drag_context_get_source_window (context), gdk_atom_intern (CAJA_ICON_DND_XDNDDIRECTSAVE_TYPE, FALSE),
+ gdk_atom_intern ("text/plain", FALSE), 0, 1024, FALSE, NULL, NULL,
+ &prop_len, &prop_text))
+ {
+ return NULL;
+ }
+
+ /* Zero-terminate the string */
+ prop_text = g_realloc (prop_text, prop_len + 1);
+ prop_text[prop_len] = '\0';
+
+ /* Verify that the file name provided by the source is valid */
+ if (*prop_text == '\0' ||
+ strchr ((const gchar *) prop_text, G_DIR_SEPARATOR) != NULL)
+ {
+ caja_debug_log (FALSE, CAJA_DEBUG_LOG_DOMAIN_USER,
+ "Invalid filename provided by XDS drag site");
+ g_free (prop_text);
+ return NULL;
+ }
+
+ return prop_text;
+}
+
+static gboolean
+set_direct_save_uri (CajaTreeViewDragDest *dest,
+ GdkDragContext *context,
+ int x, int y)
+{
+ GFile *base, *child;
+ char *drop_uri;
+ char *filename, *uri;
+
+ g_assert (dest->details->direct_save_uri == NULL);
+
+ uri = NULL;
+
+ drop_uri = get_drop_target_uri_at_pos (dest, x, y);
+ if (drop_uri != NULL)
+ {
+ filename = get_direct_save_filename (context);
+ if (filename != NULL)
+ {
+ /* Resolve relative path */
+ base = g_file_new_for_uri (drop_uri);
+ child = g_file_get_child (base, filename);
+ uri = g_file_get_uri (child);
+
+ g_object_unref (base);
+ g_object_unref (child);
+
+ /* Change the property */
+ gdk_property_change (GDK_DRAWABLE (gdk_drag_context_get_source_window (context)),
+ gdk_atom_intern (CAJA_ICON_DND_XDNDDIRECTSAVE_TYPE, FALSE),
+ gdk_atom_intern ("text/plain", FALSE), 8,
+ GDK_PROP_MODE_REPLACE, (const guchar *) uri,
+ strlen (uri));
+
+ dest->details->direct_save_uri = uri;
+ }
+ else
+ {
+ caja_debug_log (FALSE, CAJA_DEBUG_LOG_DOMAIN_USER,
+ "Invalid filename provided by XDS drag site");
+ }
+ }
+ else
+ {
+ caja_debug_log (FALSE, CAJA_DEBUG_LOG_DOMAIN_USER,
+ "Could not retrieve XDS drop destination");
+ }
+
+ return uri != NULL;
+}
+
+static gboolean
+drag_drop_callback (GtkWidget *widget,
+ GdkDragContext *context,
+ int x,
+ int y,
+ guint32 time,
+ gpointer data)
+{
+ CajaTreeViewDragDest *dest;
+ guint info;
+ GdkAtom target;
+
+ dest = CAJA_TREE_VIEW_DRAG_DEST (data);
+
+ target = gtk_drag_dest_find_target (GTK_WIDGET (dest->details->tree_view),
+ context,
+ NULL);
+ if (target == GDK_NONE)
+ {
+ return FALSE;
+ }
+
+ info = dest->details->drag_type;
+
+ if (info == CAJA_ICON_DND_XDNDDIRECTSAVE)
+ {
+ /* We need to set this or get_drop_path will fail, and it
+ was unset by drag_leave_callback */
+ dest->details->have_drag_data = TRUE;
+ if (!set_direct_save_uri (dest, context, x, y))
+ {
+ return FALSE;
+ }
+ dest->details->have_drag_data = FALSE;
+ }
+
+ dest->details->drop_occurred = TRUE;
+
+ get_drag_data (dest, context, time);
+ remove_scroll_timeout (dest);
+ remove_expand_timeout (dest);
+ clear_drag_dest_row (dest);
+
+ return TRUE;
+}
+
+static void
+tree_view_weak_notify (gpointer user_data,
+ GObject *object)
+{
+ CajaTreeViewDragDest *dest;
+
+ dest = CAJA_TREE_VIEW_DRAG_DEST (user_data);
+
+ remove_scroll_timeout (dest);
+ remove_expand_timeout (dest);
+
+ dest->details->tree_view = NULL;
+}
+
+static void
+caja_tree_view_drag_dest_dispose (GObject *object)
+{
+ CajaTreeViewDragDest *dest;
+
+ dest = CAJA_TREE_VIEW_DRAG_DEST (object);
+
+ if (dest->details->tree_view)
+ {
+ g_object_weak_unref (G_OBJECT (dest->details->tree_view),
+ tree_view_weak_notify,
+ dest);
+ }
+
+ remove_scroll_timeout (dest);
+ remove_expand_timeout (dest);
+
+ EEL_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
+}
+
+static void
+caja_tree_view_drag_dest_finalize (GObject *object)
+{
+ CajaTreeViewDragDest *dest;
+
+ dest = CAJA_TREE_VIEW_DRAG_DEST (object);
+
+ free_drag_data (dest);
+
+ g_free (dest->details);
+
+ EEL_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
+}
+
+static void
+caja_tree_view_drag_dest_init (CajaTreeViewDragDest *dest)
+{
+ dest->details = g_new0 (CajaTreeViewDragDestDetails, 1);
+}
+
+static void
+caja_tree_view_drag_dest_class_init (CajaTreeViewDragDestClass *class)
+{
+ GObjectClass *gobject_class;
+
+ gobject_class = G_OBJECT_CLASS (class);
+
+ gobject_class->dispose = caja_tree_view_drag_dest_dispose;
+ gobject_class->finalize = caja_tree_view_drag_dest_finalize;
+
+ signals[GET_ROOT_URI] =
+ g_signal_new ("get_root_uri",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (CajaTreeViewDragDestClass,
+ get_root_uri),
+ NULL, NULL,
+ caja_marshal_STRING__VOID,
+ G_TYPE_STRING, 0);
+ signals[GET_FILE_FOR_PATH] =
+ g_signal_new ("get_file_for_path",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (CajaTreeViewDragDestClass,
+ get_file_for_path),
+ NULL, NULL,
+ caja_marshal_OBJECT__BOXED,
+ CAJA_TYPE_FILE, 1,
+ GTK_TYPE_TREE_PATH);
+ signals[MOVE_COPY_ITEMS] =
+ g_signal_new ("move_copy_items",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (CajaTreeViewDragDestClass,
+ move_copy_items),
+ NULL, NULL,
+
+ caja_marshal_VOID__POINTER_STRING_ENUM_INT_INT,
+ G_TYPE_NONE, 5,
+ G_TYPE_POINTER,
+ G_TYPE_STRING,
+ GDK_TYPE_DRAG_ACTION,
+ G_TYPE_INT,
+ G_TYPE_INT);
+ signals[HANDLE_NETSCAPE_URL] =
+ g_signal_new ("handle_netscape_url",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (CajaTreeViewDragDestClass,
+ handle_netscape_url),
+ NULL, NULL,
+ caja_marshal_VOID__STRING_STRING_ENUM_INT_INT,
+ G_TYPE_NONE, 5,
+ G_TYPE_STRING,
+ G_TYPE_STRING,
+ GDK_TYPE_DRAG_ACTION,
+ G_TYPE_INT,
+ G_TYPE_INT);
+ signals[HANDLE_URI_LIST] =
+ g_signal_new ("handle_uri_list",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (CajaTreeViewDragDestClass,
+ handle_uri_list),
+ NULL, NULL,
+ caja_marshal_VOID__STRING_STRING_ENUM_INT_INT,
+ G_TYPE_NONE, 5,
+ G_TYPE_STRING,
+ G_TYPE_STRING,
+ GDK_TYPE_DRAG_ACTION,
+ G_TYPE_INT,
+ G_TYPE_INT);
+ signals[HANDLE_TEXT] =
+ g_signal_new ("handle_text",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (CajaTreeViewDragDestClass,
+ handle_text),
+ NULL, NULL,
+ caja_marshal_VOID__STRING_STRING_ENUM_INT_INT,
+ G_TYPE_NONE, 5,
+ G_TYPE_STRING,
+ G_TYPE_STRING,
+ GDK_TYPE_DRAG_ACTION,
+ G_TYPE_INT,
+ G_TYPE_INT);
+ signals[HANDLE_RAW] =
+ g_signal_new ("handle_raw",
+ G_TYPE_FROM_CLASS (class),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (CajaTreeViewDragDestClass,
+ handle_raw),
+ NULL, NULL,
+ caja_marshal_VOID__POINTER_INT_STRING_STRING_ENUM_INT_INT,
+ G_TYPE_NONE, 7,
+ G_TYPE_POINTER,
+ G_TYPE_INT,
+ G_TYPE_STRING,
+ G_TYPE_STRING,
+ GDK_TYPE_DRAG_ACTION,
+ G_TYPE_INT,
+ G_TYPE_INT);
+}
+
+
+
+CajaTreeViewDragDest *
+caja_tree_view_drag_dest_new (GtkTreeView *tree_view)
+{
+ CajaTreeViewDragDest *dest;
+ GtkTargetList *targets;
+
+ dest = g_object_new (CAJA_TYPE_TREE_VIEW_DRAG_DEST, NULL);
+
+ dest->details->tree_view = tree_view;
+ g_object_weak_ref (G_OBJECT (dest->details->tree_view),
+ tree_view_weak_notify, dest);
+
+ gtk_drag_dest_set (GTK_WIDGET (tree_view),
+ 0, drag_types, G_N_ELEMENTS (drag_types),
+ GDK_ACTION_MOVE | GDK_ACTION_COPY | GDK_ACTION_LINK | GDK_ACTION_ASK);
+
+ targets = gtk_drag_dest_get_target_list (GTK_WIDGET (tree_view));
+ gtk_target_list_add_text_targets (targets, CAJA_ICON_DND_TEXT);
+
+ g_signal_connect_object (tree_view,
+ "drag_motion",
+ G_CALLBACK (drag_motion_callback),
+ dest, 0);
+ g_signal_connect_object (tree_view,
+ "drag_leave",
+ G_CALLBACK (drag_leave_callback),
+ dest, 0);
+ g_signal_connect_object (tree_view,
+ "drag_drop",
+ G_CALLBACK (drag_drop_callback),
+ dest, 0);
+ g_signal_connect_object (tree_view,
+ "drag_data_received",
+ G_CALLBACK (drag_data_received_callback),
+ dest, 0);
+
+ return dest;
+}
author	Perberos <[email protected]>	2011-12-01 22:24:23 -0300
committer	Perberos <[email protected]>	2011-12-01 22:24:23 -0300
commit	0e004c696b0e68b2cff37a4c3315b022a35eaf43 (patch)
tree	43261e815529cb9518ed7be37af13b846af8b26b /libcaja-private/caja-tree-view-drag-dest.c
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