/*
* nautilus-window-slot-dnd.c - Handle DnD for widgets acting as
* NautilusWindowSlot proxies
*
* Copyright (C) 2000, 2001 Eazel, Inc.
* Copyright (C) 2010, Red Hat, Inc.
*
* The Gnome Library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* The Gnome Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with the Gnome Library; see the file COPYING.LIB. If not,
* see <http://www.gnu.org/licenses/>.
*
* Authors: Pavel Cisler <pavel@eazel.com>,
* Ettore Perazzoli <ettore@gnu.org>
*/
#include <config.h>
#include "nautilus-notebook.h"
#include "nautilus-application.h"
#include "nautilus-files-view-dnd.h"
#include "nautilus-window-slot-dnd.h"
typedef struct
{
gboolean have_data;
gboolean have_valid_data;
gboolean drop_occurred;
unsigned int info;
union
{
GList *selection_list;
GList *uri_list;
char *netscape_url;
GtkSelectionData *selection_data;
} data;
NautilusFile *target_file;
NautilusWindowSlot *target_slot;
GtkWidget *widget;
gboolean is_notebook;
guint switch_location_timer;
} NautilusDragSlotProxyInfo;
static void
switch_tab (NautilusDragSlotProxyInfo *drag_info)
{
GtkWidget *notebook, *slot;
gint idx, n_pages;
if (drag_info->target_slot == NULL)
{
return;
}
notebook = gtk_widget_get_ancestor (GTK_WIDGET (drag_info->target_slot), NAUTILUS_TYPE_NOTEBOOK);
n_pages = gtk_notebook_get_n_pages (GTK_NOTEBOOK (notebook));
for (idx = 0; idx < n_pages; idx++)
{
slot = gtk_notebook_get_nth_page (GTK_NOTEBOOK (notebook), idx);
if (NAUTILUS_WINDOW_SLOT (slot) == drag_info->target_slot)
{
gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook), idx);
break;
}
}
}
static void
switch_location (NautilusDragSlotProxyInfo *drag_info)
{
GFile *location;
GtkWidget *window;
if (drag_info->target_file == NULL)
{
return;
}
window = gtk_widget_get_toplevel (drag_info->widget);
g_assert (NAUTILUS_IS_WINDOW (window));
location = nautilus_file_get_location (drag_info->target_file);
nautilus_application_open_location_full (NAUTILUS_APPLICATION (g_application_get_default ()),
location, NAUTILUS_WINDOW_OPEN_FLAG_DONT_MAKE_ACTIVE,
NULL, NAUTILUS_WINDOW (window), NULL);
g_object_unref (location);
}
static gboolean
slot_proxy_switch_location_timer (gpointer user_data)
{
NautilusDragSlotProxyInfo *drag_info = user_data;
drag_info->switch_location_timer = 0;
if (drag_info->is_notebook)
{
switch_tab (drag_info);
}
else
{
switch_location (drag_info);
}
return FALSE;
}
static void
slot_proxy_check_switch_location_timer (NautilusDragSlotProxyInfo *drag_info,
GtkWidget *widget)
{
GtkSettings *settings;
guint timeout;
if (drag_info->switch_location_timer)
{
return;
}
settings = gtk_widget_get_settings (widget);
g_object_get (settings, "gtk-timeout-expand", &timeout, NULL);
drag_info->switch_location_timer =
gdk_threads_add_timeout (timeout,
slot_proxy_switch_location_timer,
drag_info);
}
static void
slot_proxy_remove_switch_location_timer (NautilusDragSlotProxyInfo *drag_info)
{
if (drag_info->switch_location_timer != 0)
{
g_source_remove (drag_info->switch_location_timer);
drag_info->switch_location_timer = 0;
}
}
static gboolean
slot_proxy_drag_motion (GtkWidget *widget,
GdkDragContext *context,
int x,
int y,
unsigned int time,
gpointer user_data)
{
NautilusDragSlotProxyInfo *drag_info;
NautilusWindowSlot *target_slot;
GtkWidget *window;
GdkAtom target;
int action;
char *target_uri;
GFile *location;
gboolean valid_text_drag;
gboolean valid_xds_drag;
drag_info = user_data;
action = 0;
valid_text_drag = FALSE;
valid_xds_drag = FALSE;
if (gtk_drag_get_source_widget (context) == widget)
{
goto out;
}
window = gtk_widget_get_toplevel (widget);
g_assert (NAUTILUS_IS_WINDOW (window));
if (!drag_info->have_data)
{
target = gtk_drag_dest_find_target (widget, context, NULL);
if (target == GDK_NONE)
{
goto out;
}
gtk_drag_get_data (widget, context, target, time);
}
target_uri = NULL;
if (drag_info->target_file != NULL)
{
target_uri = nautilus_file_get_uri (drag_info->target_file);
}
else
{
if (drag_info->target_slot != NULL)
{
target_slot = drag_info->target_slot;
}
else
{
target_slot = nautilus_window_get_active_slot (NAUTILUS_WINDOW (window));
}
if (target_slot != NULL)
{
location = nautilus_window_slot_get_location (target_slot);
target_uri = g_file_get_uri (location);
}
}
if (target_uri != NULL)
{
NautilusFile *file;
NautilusDirectory *directory;
gboolean can;
file = nautilus_file_get_existing_by_uri (target_uri);
directory = nautilus_directory_get_for_file (file);
can = nautilus_file_can_write (file) && nautilus_directory_is_editable (directory);
nautilus_directory_unref (directory);
g_object_unref (file);
if (!can)
{
action = 0;
goto out;
}
}
if (drag_info->have_data &&
drag_info->have_valid_data)
{
if (drag_info->info == NAUTILUS_ICON_DND_GNOME_ICON_LIST)
{
nautilus_drag_default_drop_action_for_icons (context, target_uri,
drag_info->data.selection_list,
0,
&action);
}
else if (drag_info->info == NAUTILUS_ICON_DND_URI_LIST)
{
action = nautilus_drag_default_drop_action_for_uri_list (context, target_uri);
}
else if (drag_info->info == NAUTILUS_ICON_DND_NETSCAPE_URL)
{
action = nautilus_drag_default_drop_action_for_netscape_url (context);
}
else if (drag_info->info == NAUTILUS_ICON_DND_TEXT)
{
valid_text_drag = TRUE;
}
else if (drag_info->info == NAUTILUS_ICON_DND_XDNDDIRECTSAVE ||
drag_info->info == NAUTILUS_ICON_DND_RAW)
{
valid_xds_drag = TRUE;
}
}
g_free (target_uri);
out:
if (action != 0 || valid_text_drag || valid_xds_drag)
{
gtk_drag_highlight (widget);
slot_proxy_check_switch_location_timer (drag_info, widget);
}
else
{
gtk_drag_unhighlight (widget);
slot_proxy_remove_switch_location_timer (drag_info);
}
gdk_drag_status (context, action, time);
return TRUE;
}
static void
drag_info_free (gpointer user_data)
{
NautilusDragSlotProxyInfo *drag_info = user_data;
g_clear_object (&drag_info->target_file);
g_clear_object (&drag_info->target_slot);
g_slice_free (NautilusDragSlotProxyInfo, drag_info);
}
static void
drag_info_clear (NautilusDragSlotProxyInfo *drag_info)
{
slot_proxy_remove_switch_location_timer (drag_info);
if (!drag_info->have_data)
{
goto out;
}
if (drag_info->info == NAUTILUS_ICON_DND_GNOME_ICON_LIST)
{
nautilus_drag_destroy_selection_list (drag_info->data.selection_list);
}
else if (drag_info->info == NAUTILUS_ICON_DND_URI_LIST)
{
g_list_free (drag_info->data.uri_list);
}
else if (drag_info->info == NAUTILUS_ICON_DND_NETSCAPE_URL)
{
g_free (drag_info->data.netscape_url);
}
else if (drag_info->info == NAUTILUS_ICON_DND_TEXT ||
drag_info->info == NAUTILUS_ICON_DND_XDNDDIRECTSAVE ||
drag_info->info == NAUTILUS_ICON_DND_RAW)
{
if (drag_info->data.selection_data != NULL)
{
gtk_selection_data_free (drag_info->data.selection_data);
}
}
out:
drag_info->have_data = FALSE;
drag_info->have_valid_data = FALSE;
drag_info->drop_occurred = FALSE;
}
static void
slot_proxy_drag_leave (GtkWidget *widget,
GdkDragContext *context,
unsigned int time,
gpointer user_data)
{
NautilusDragSlotProxyInfo *drag_info;
drag_info = user_data;
gtk_drag_unhighlight (widget);
drag_info_clear (drag_info);
}
static gboolean
slot_proxy_drag_drop (GtkWidget *widget,
GdkDragContext *context,
int x,
int y,
unsigned int time,
gpointer user_data)
{
GdkAtom target;
NautilusDragSlotProxyInfo *drag_info;
drag_info = user_data;
g_assert (!drag_info->have_data);
drag_info->drop_occurred = TRUE;
target = gtk_drag_dest_find_target (widget, context, NULL);
gtk_drag_get_data (widget, context, target, time);
return TRUE;
}
static void
slot_proxy_handle_drop (GtkWidget *widget,
GdkDragContext *context,
unsigned int time,
NautilusDragSlotProxyInfo *drag_info)
{
GtkWidget *window;
NautilusWindowSlot *target_slot;
NautilusFilesView *target_view;
char *target_uri;
GList *uri_list;
GFile *location;
if (!drag_info->have_data ||
!drag_info->have_valid_data)
{
gtk_drag_finish (context, FALSE, FALSE, time);
drag_info_clear (drag_info);
return;
}
window = gtk_widget_get_toplevel (widget);
g_assert (NAUTILUS_IS_WINDOW (window));
if (drag_info->target_slot != NULL)
{
target_slot = drag_info->target_slot;
}
else
{
target_slot = nautilus_window_get_active_slot (NAUTILUS_WINDOW (window));
}
target_uri = NULL;
if (drag_info->target_file != NULL)
{
target_uri = nautilus_file_get_uri (drag_info->target_file);
}
else if (target_slot != NULL)
{
location = nautilus_window_slot_get_location (target_slot);
target_uri = g_file_get_uri (location);
}
target_view = NULL;
if (target_slot != NULL)
{
NautilusView *view;
view = nautilus_window_slot_get_current_view (target_slot);
if (view && NAUTILUS_IS_FILES_VIEW (view))
{
target_view = NAUTILUS_FILES_VIEW (view);
}
}
if (target_slot != NULL && target_view != NULL)
{
if (drag_info->info == NAUTILUS_ICON_DND_GNOME_ICON_LIST)
{
uri_list = nautilus_drag_uri_list_from_selection_list (drag_info->data.selection_list);
g_assert (uri_list != NULL);
nautilus_files_view_drop_proxy_received_uris (target_view,
uri_list,
target_uri,
gdk_drag_context_get_selected_action (context));
g_list_free_full (uri_list, g_free);
}
else if (drag_info->info == NAUTILUS_ICON_DND_URI_LIST)
{
nautilus_files_view_drop_proxy_received_uris (target_view,
drag_info->data.uri_list,
target_uri,
gdk_drag_context_get_selected_action (context));
}
if (drag_info->info == NAUTILUS_ICON_DND_NETSCAPE_URL)
{
nautilus_files_view_handle_netscape_url_drop (target_view,
drag_info->data.netscape_url,
target_uri,
gdk_drag_context_get_selected_action (context));
}
gtk_drag_finish (context, TRUE, FALSE, time);
}
else
{
gtk_drag_finish (context, FALSE, FALSE, time);
}
g_free (target_uri);
drag_info_clear (drag_info);
}
static void
slot_proxy_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
int x,
int y,
GtkSelectionData *data,
unsigned int info,
unsigned int time,
gpointer user_data)
{
NautilusDragSlotProxyInfo *drag_info;
char **uris;
drag_info = user_data;
g_assert (!drag_info->have_data);
drag_info->have_data = TRUE;
drag_info->info = info;
if (gtk_selection_data_get_length (data) < 0)
{
drag_info->have_valid_data = FALSE;
return;
}
if (info == NAUTILUS_ICON_DND_GNOME_ICON_LIST)
{
drag_info->data.selection_list = nautilus_drag_build_selection_list (data);
drag_info->have_valid_data = drag_info->data.selection_list != NULL;
}
else if (info == NAUTILUS_ICON_DND_URI_LIST)
{
uris = gtk_selection_data_get_uris (data);
drag_info->data.uri_list = nautilus_drag_uri_list_from_array ((const char **) uris);
g_strfreev (uris);
drag_info->have_valid_data = drag_info->data.uri_list != NULL;
}
else if (info == NAUTILUS_ICON_DND_NETSCAPE_URL)
{
drag_info->data.netscape_url = g_strdup ((char *) gtk_selection_data_get_data (data));
drag_info->have_valid_data = drag_info->data.netscape_url != NULL;
}
else if (info == NAUTILUS_ICON_DND_TEXT ||
info == NAUTILUS_ICON_DND_XDNDDIRECTSAVE ||
info == NAUTILUS_ICON_DND_RAW)
{
drag_info->data.selection_data = gtk_selection_data_copy (data);
drag_info->have_valid_data = drag_info->data.selection_data != NULL;
}
if (drag_info->drop_occurred)
{
slot_proxy_handle_drop (widget, context, time, drag_info);
}
}
void
nautilus_drag_slot_proxy_init (GtkWidget *widget,
NautilusFile *target_file,
NautilusWindowSlot *target_slot)
{
NautilusDragSlotProxyInfo *drag_info;
const GtkTargetEntry targets[] =
{
{ NAUTILUS_ICON_DND_GNOME_ICON_LIST_TYPE, 0, NAUTILUS_ICON_DND_GNOME_ICON_LIST },
{ NAUTILUS_ICON_DND_NETSCAPE_URL_TYPE, 0, NAUTILUS_ICON_DND_NETSCAPE_URL },
{ NAUTILUS_ICON_DND_XDNDDIRECTSAVE_TYPE, 0, NAUTILUS_ICON_DND_XDNDDIRECTSAVE }, /* XDS Protocol Type */
{ NAUTILUS_ICON_DND_RAW_TYPE, 0, NAUTILUS_ICON_DND_RAW }
};
GtkTargetList *target_list;
g_assert (GTK_IS_WIDGET (widget));
drag_info = g_slice_new0 (NautilusDragSlotProxyInfo);
g_object_set_data_full (G_OBJECT (widget), "drag-slot-proxy-data", drag_info,
drag_info_free);
drag_info->is_notebook = (g_object_get_data (G_OBJECT (widget), "nautilus-notebook-tab") != NULL);
if (target_file != NULL)
{
drag_info->target_file = nautilus_file_ref (target_file);
}
if (target_slot != NULL)
{
drag_info->target_slot = g_object_ref (target_slot);
}
drag_info->widget = widget;
gtk_drag_dest_set (widget, 0,
NULL, 0,
GDK_ACTION_MOVE |
GDK_ACTION_COPY |
GDK_ACTION_LINK |
GDK_ACTION_ASK);
target_list = gtk_target_list_new (targets, G_N_ELEMENTS (targets));
gtk_target_list_add_uri_targets (target_list, NAUTILUS_ICON_DND_URI_LIST);
gtk_target_list_add_text_targets (target_list, NAUTILUS_ICON_DND_TEXT);
gtk_drag_dest_set_target_list (widget, target_list);
gtk_target_list_unref (target_list);
g_signal_connect (widget, "drag-motion",
G_CALLBACK (slot_proxy_drag_motion),
drag_info);
g_signal_connect (widget, "drag-drop",
G_CALLBACK (slot_proxy_drag_drop),
drag_info);
g_signal_connect (widget, "drag-data-received",
G_CALLBACK (slot_proxy_drag_data_received),
drag_info);
g_signal_connect (widget, "drag-leave",
G_CALLBACK (slot_proxy_drag_leave),
drag_info);
}