diff options
Diffstat (limited to 'src/nautilus-window-slot-dnd.c')
| -rw-r--r-- | src/nautilus-window-slot-dnd.c | 346 |
1 files changed, 346 insertions, 0 deletions
diff --git a/src/nautilus-window-slot-dnd.c b/src/nautilus-window-slot-dnd.c new file mode 100644 index 0000000..b05af1a --- /dev/null +++ b/src/nautilus-window-slot-dnd.c @@ -0,0 +1,346 @@ +/* + * 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-application.h" +#include "nautilus-files-view-dnd.h" +#include "nautilus-window-slot-dnd.h" + +#ifdef GDK_WINDOWING_X11 +#include <gdk/x11/gdkx.h> +#endif + +typedef struct +{ + NautilusFile *target_file; + NautilusWindowSlot *target_slot; + GtkWidget *widget; + + graphene_point_t hover_start_point; + guint switch_location_timer; +} NautilusDragSlotProxyInfo; + +static void +switch_location (NautilusDragSlotProxyInfo *drag_info) +{ + GFile *location; + GtkRoot *window; + + if (drag_info->target_file == NULL) + { + return; + } + + window = gtk_widget_get_root (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_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; + + switch_location (drag_info); + + return FALSE; +} + +static void +slot_proxy_check_switch_location_timer (NautilusDragSlotProxyInfo *drag_info) +{ + if (drag_info->switch_location_timer) + { + return; + } + + drag_info->switch_location_timer = g_timeout_add (HOVER_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 GdkDragAction +slot_proxy_drag_motion (GtkDropTarget *target, + gdouble x, + gdouble y, + gpointer user_data) +{ + NautilusDragSlotProxyInfo *drag_info; + NautilusWindowSlot *target_slot; + GtkRoot *window; + GdkDragAction action; + char *target_uri; + GFile *location; + const GValue *value; + graphene_point_t start; + + drag_info = user_data; + + action = 0; + + value = gtk_drop_target_get_value (target); + if (value == NULL) + { + return 0; + } + + window = gtk_widget_get_root (drag_info->widget); + g_assert (NAUTILUS_IS_WINDOW (window)); + + 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 (G_VALUE_HOLDS (value, GDK_TYPE_FILE_LIST)) + { + GSList *items = g_value_get_boxed (value); + action = nautilus_dnd_get_preferred_action (file, items->data); + } + } + + g_free (target_uri); + +out: + start = drag_info->hover_start_point; + if (gtk_drag_check_threshold (drag_info->widget, start.x, start.y, x, y)) + { + slot_proxy_remove_switch_location_timer (drag_info); + slot_proxy_check_switch_location_timer (drag_info); + drag_info->hover_start_point.x = x; + drag_info->hover_start_point.y = y; + } + + return action; +} + +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); +} + +static void +slot_proxy_drag_leave (GtkDropTarget *target, + gpointer user_data) +{ + NautilusDragSlotProxyInfo *drag_info; + + drag_info = user_data; + + drag_info_clear (drag_info); +} + +static void +slot_proxy_handle_drop (GtkDropTarget *target, + const GValue *value, + gdouble x, + gdouble y, + gpointer user_data) +{ + GtkRoot *window; + NautilusWindowSlot *target_slot; + NautilusFilesView *target_view; + char *target_uri; + GList *uri_list = NULL; + GFile *location; + NautilusDragSlotProxyInfo *drag_info; + + drag_info = user_data; + + window = gtk_widget_get_root (drag_info->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 (G_VALUE_HOLDS (value, GDK_TYPE_FILE_LIST)) + { + GSList *items = g_value_get_boxed (value); + GdkDragAction actions; + + for (GSList *l = items; l != NULL; l = l->next) + { + uri_list = g_list_prepend (uri_list, g_file_get_uri (l->data)); + } + + actions = gdk_drop_get_actions (gtk_drop_target_get_current_drop (target)); + + #ifdef GDK_WINDOWING_X11 + if (GDK_IS_X11_DISPLAY (gtk_widget_get_display (GTK_WIDGET (window)))) + { + /* Temporary workaround until the below GTK MR (or equivalend fix) + * is merged. Without this fix, the preferred action isn't set correctly. + * https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/4982 */ + GdkDrag *drag = gdk_drop_get_drag (gtk_drop_target_get_current_drop (target)); + actions = gdk_drag_get_selected_action (drag); + } + #endif + + nautilus_files_view_drop_proxy_received_uris (target_view, + uri_list, + target_uri, + actions); + g_list_free_full (uri_list, g_free); + } + } + g_free (target_uri); + + drag_info_clear (drag_info); +} + +void +nautilus_drag_slot_proxy_init (GtkWidget *widget, + NautilusFile *target_file, + NautilusWindowSlot *target_slot) +{ + NautilusDragSlotProxyInfo *drag_info; + GtkDropTarget *target; + + 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); + + 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; + /* TODO: Implement GDK_ACTION_ASK */ + target = gtk_drop_target_new (G_TYPE_INVALID, GDK_ACTION_ALL); + + gtk_drop_target_set_preload (target, TRUE); + /* TODO: Implement GDK_TYPE_STRING */ + gtk_drop_target_set_gtypes (target, (GType[1]) { GDK_TYPE_FILE_LIST }, 1); + g_signal_connect (target, "enter", G_CALLBACK (slot_proxy_drag_motion), drag_info); + g_signal_connect (target, "motion", G_CALLBACK (slot_proxy_drag_motion), drag_info); + g_signal_connect (target, "drop", G_CALLBACK (slot_proxy_handle_drop), drag_info); + g_signal_connect (target, "leave", G_CALLBACK (slot_proxy_drag_leave), drag_info); + gtk_widget_add_controller (widget, GTK_EVENT_CONTROLLER (target)); +} |