diff options
Diffstat (limited to 'shell/e-folder-dnd-bridge.c')
-rw-r--r-- | shell/e-folder-dnd-bridge.c | 487 |
1 files changed, 0 insertions, 487 deletions
diff --git a/shell/e-folder-dnd-bridge.c b/shell/e-folder-dnd-bridge.c deleted file mode 100644 index 9ee9441c9d..0000000000 --- a/shell/e-folder-dnd-bridge.c +++ /dev/null @@ -1,487 +0,0 @@ -/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */ -/* e-folder-dnd-bridge.c - Utility functions for handling dnd to Evolution - * folders using the ShellComponentDnd interface. - * - * Copyright (C) 2002 Ximian, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - * - * 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, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - * - * Author: Ettore Perazzoli <ettore@ximian.com> - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include "e-folder-dnd-bridge.h" - -#include "Evolution.h" -#include "e-storage-set-view.h" -#include "e-shell-constants.h" - -#include <gal/widgets/e-gui-utils.h> - -#include <libgnome/gnome-i18n.h> -#include <libgnome/gnome-util.h> - -#include <string.h> - - -/* Callbacks for folder operations. */ - -static void -folder_xfer_callback (EStorageSet *storage_set, - EStorageResult result, - void *data) -{ - GtkWindow *parent; - - if (result == E_STORAGE_OK) - return; - - parent = GTK_WINDOW (data); - e_notice (parent, GTK_MESSAGE_ERROR, _("Cannot transfer folder:\n%s"), - e_storage_result_to_string (result)); -} - - -/* Utility functions. */ - -static GNOME_Evolution_ShellComponentDnd_ActionSet -convert_gdk_drag_action_set_to_corba (GdkDragAction action) -{ - GNOME_Evolution_ShellComponentDnd_Action retval; - - retval = GNOME_Evolution_ShellComponentDnd_ACTION_DEFAULT; - - if (action & GDK_ACTION_COPY) - retval |= GNOME_Evolution_ShellComponentDnd_ACTION_COPY; - if (action & GDK_ACTION_MOVE) - retval |= GNOME_Evolution_ShellComponentDnd_ACTION_MOVE; - if (action & GDK_ACTION_LINK) - retval |= GNOME_Evolution_ShellComponentDnd_ACTION_LINK; - if (action & GDK_ACTION_ASK) - retval |= GNOME_Evolution_ShellComponentDnd_ACTION_ASK; - - return retval; -} - -static GNOME_Evolution_ShellComponentDnd_ActionSet -convert_gdk_drag_action_to_corba (GdkDragAction action) -{ - if (action == GDK_ACTION_COPY) - return GNOME_Evolution_ShellComponentDnd_ACTION_COPY; - else if (action == GDK_ACTION_MOVE) - return GNOME_Evolution_ShellComponentDnd_ACTION_MOVE; - else if (action == GDK_ACTION_LINK) - return GNOME_Evolution_ShellComponentDnd_ACTION_LINK; - else if (action == GDK_ACTION_ASK) - return GNOME_Evolution_ShellComponentDnd_ACTION_ASK; - else { - g_warning ("Unknown GdkDragAction %d", action); - return GNOME_Evolution_ShellComponentDnd_ACTION_DEFAULT; - } -} - -static GdkDragAction -convert_corba_drag_action_to_gdk (GNOME_Evolution_ShellComponentDnd_ActionSet action) -{ - if (action == GNOME_Evolution_ShellComponentDnd_ACTION_COPY) - return GDK_ACTION_COPY; - else if (action == GNOME_Evolution_ShellComponentDnd_ACTION_MOVE) - return GDK_ACTION_MOVE; - else if (action == GNOME_Evolution_ShellComponentDnd_ACTION_LINK) - return GDK_ACTION_LINK; - else if (action == GNOME_Evolution_ShellComponentDnd_ACTION_ASK) - return GDK_ACTION_ASK; - else { - g_warning ("unknown GNOME_Evolution_ShellComponentDnd_ActionSet %d", action); - return GDK_ACTION_DEFAULT; - } -} - -static EvolutionShellComponentClient * -get_component_at_path (EStorageSet *storage_set, - const char *path) -{ - EvolutionShellComponentClient *component_client; - EFolderTypeRegistry *folder_type_registry; - EFolder *folder; - - folder = e_storage_set_get_folder (storage_set, path); - if (folder == NULL) - return NULL; - - folder_type_registry = e_storage_set_get_folder_type_registry (storage_set); - g_assert (folder_type_registry != NULL); - - component_client = e_folder_type_registry_get_handler_for_type (folder_type_registry, - e_folder_get_type_string (folder)); - - return component_client; -} - -/* This will look for the targets in @drag_context, choose one that matches - with the allowed types at @path, and return its name. The EVOLUTION_PATH - type always matches. */ -static const char * -find_matching_target_for_drag_context (EStorageSet *storage_set, - const char *path, - GdkDragContext *drag_context, - GdkAtom *atom_return) -{ - EFolderTypeRegistry *folder_type_registry; - EFolder *folder; - GList *accepted_types; - GList *p, *q; - - folder_type_registry = e_storage_set_get_folder_type_registry (storage_set); - - folder = e_storage_set_get_folder (storage_set, path); - if (folder == NULL) - return E_FOLDER_DND_PATH_TARGET_TYPE; - - accepted_types = e_folder_type_registry_get_accepted_dnd_types_for_type (folder_type_registry, - e_folder_get_type_string (folder)); - - for (p = drag_context->targets; p != NULL; p = p->next) { - char *possible_type; - - possible_type = gdk_atom_name (*((GdkAtom *) p->data)); - if (strcmp (possible_type, E_FOLDER_DND_PATH_TARGET_TYPE) == 0) { - g_free (possible_type); - - if (atom_return != NULL) - *atom_return = *((GdkAtom *) p->data); - - return E_FOLDER_DND_PATH_TARGET_TYPE; - } - - for (q = accepted_types; q != NULL; q = q->next) { - const char *accepted_type; - - accepted_type = (const char *) q->data; - if (strcmp (possible_type, accepted_type) == 0) { - g_free (possible_type); - - if (atom_return != NULL) - *atom_return = *((GdkAtom *) p->data); - - return accepted_type; - } - } - - g_free (possible_type); - } - - if (atom_return != NULL) - *atom_return = 0; - - return NULL; -} - -static gboolean -handle_evolution_path_drag_motion (EStorageSet *storage_set, - const char *path, - GdkDragContext *context, - unsigned int time) -{ - GdkModifierType modifiers; - GdkDragAction action; - - gdk_window_get_pointer (NULL, NULL, NULL, &modifiers); - - if ((modifiers & GDK_CONTROL_MASK) != 0) { - action = GDK_ACTION_COPY; - } else { - GtkWidget *source_widget; - - action = GDK_ACTION_MOVE; - - source_widget = gtk_drag_get_source_widget (context); - if (source_widget != NULL - && E_IS_STORAGE_SET_VIEW (source_widget)) { - const char *source_path; - - source_path = e_storage_set_view_get_current_folder (E_STORAGE_SET_VIEW (source_widget)); - if (source_path != NULL) { - EFolder *folder; - int source_path_len; - char *destination_path; - char *base_name; - - folder = e_storage_set_get_folder (storage_set, source_path); - if (folder != NULL && e_folder_get_is_stock (folder)) - return FALSE; - - source_path_len = strlen (path); - if (strcmp (path, source_path) == 0) - return FALSE; - - base_name = g_path_get_basename (source_path); - destination_path = g_strconcat (path, "/", base_name, NULL); - g_free (base_name); - - if (strncmp (destination_path, source_path, source_path_len) == 0) { - g_free (destination_path); - return FALSE; - } - - g_free (destination_path); - } - } - } - - gdk_drag_status (context, action, time); - return TRUE; -} - - -/* Bridge for the DnD motion event. */ - -gboolean -e_folder_dnd_bridge_motion (GtkWidget *widget, - GdkDragContext *context, - unsigned int time, - EStorageSet *storage_set, - const char *path) -{ - EvolutionShellComponentClient *component_client; - GNOME_Evolution_ShellComponentDnd_DestinationFolder destination_folder_interface; - GNOME_Evolution_ShellComponentDnd_DestinationFolder_Context corba_context; - GNOME_Evolution_ShellComponentDnd_Action suggested_action; - CORBA_Environment ev; - CORBA_boolean can_handle; - EFolder *folder; - const char *dnd_type; - - g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE); - g_return_val_if_fail (context != NULL, FALSE); - g_return_val_if_fail (E_IS_STORAGE_SET (storage_set), FALSE); - g_return_val_if_fail (path != NULL, FALSE); - - dnd_type = find_matching_target_for_drag_context (storage_set, path, context, NULL); - if (dnd_type == NULL) - return FALSE; - - if (strcmp (dnd_type, E_FOLDER_DND_PATH_TARGET_TYPE) == 0) - return handle_evolution_path_drag_motion (storage_set, path, context, time); - - component_client = get_component_at_path (storage_set, path); - if (component_client == NULL) - return FALSE; - - destination_folder_interface = evolution_shell_component_client_get_dnd_destination_interface (component_client); - if (destination_folder_interface == NULL) - return FALSE; - - CORBA_exception_init (&ev); - - corba_context.dndType = (char *) dnd_type; /* (Safe cast, as we don't actually free the corba_context.) */ - corba_context.possibleActions = convert_gdk_drag_action_set_to_corba (context->actions); - corba_context.suggestedAction = convert_gdk_drag_action_to_corba (context->suggested_action); - - folder = e_storage_set_get_folder (storage_set, path); - - can_handle = GNOME_Evolution_ShellComponentDnd_DestinationFolder_handleMotion (destination_folder_interface, - e_folder_get_physical_uri (folder), - e_folder_get_type_string (folder), - &corba_context, - &suggested_action, - &ev); - if (ev._major != CORBA_NO_EXCEPTION || ! can_handle) { - CORBA_exception_free (&ev); - return FALSE; - } - - CORBA_exception_free (&ev); - - gdk_drag_status (context, convert_corba_drag_action_to_gdk (suggested_action), time); - return TRUE; -} - - -/* Bridge for the drop event. */ - -gboolean -e_folder_dnd_bridge_drop (GtkWidget *widget, - GdkDragContext *context, - unsigned int time, - EStorageSet *storage_set, - const char *path) -{ - GdkAtom atom; - - g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE); - g_return_val_if_fail (context != NULL, FALSE); - g_return_val_if_fail (E_IS_STORAGE_SET (storage_set), FALSE); - g_return_val_if_fail (path != NULL, FALSE); - - if (context->targets == NULL) - return FALSE; - - if (find_matching_target_for_drag_context (storage_set, path, context, &atom) == NULL) - return FALSE; - - gtk_drag_get_data (widget, context, atom, time); - - return FALSE; -} - - -/* Bridge for the data_received event. */ - -static gboolean -handle_data_received_path (GdkDragContext *context, - GtkSelectionData *selection_data, - EStorageSet *storage_set, - const char *path, - GtkWindow *toplevel_window) -{ - const char *source_path; - char *destination_path; - char *base_name; - gboolean handled; - - source_path = (const char *) selection_data->data; - - /* (Basic sanity checks.) */ - if (source_path == NULL || source_path[0] != E_PATH_SEPARATOR || source_path[1] == '\0') - return FALSE; - - base_name = g_path_get_basename (source_path); - destination_path = g_concat_dir_and_file (path, base_name); - g_free (base_name); - - switch (context->action) { - case GDK_ACTION_MOVE: - e_storage_set_async_xfer_folder (storage_set, - source_path, - destination_path, - TRUE, - folder_xfer_callback, - toplevel_window); - handled = TRUE; - break; - case GDK_ACTION_COPY: - e_storage_set_async_xfer_folder (storage_set, - source_path, - destination_path, - FALSE, - folder_xfer_callback, - toplevel_window); - handled = TRUE; - break; - default: - handled = FALSE; - g_warning ("EStorageSetView: Unknown action %d", context->action); - } - - g_free (destination_path); - - return handled; -} - -static gboolean -handle_data_received_non_path (GdkDragContext *context, - GtkSelectionData *selection_data, - EStorageSet *storage_set, - const char *path, - const char *target_type) -{ - GNOME_Evolution_ShellComponentDnd_DestinationFolder destination_folder_interface; - GNOME_Evolution_ShellComponentDnd_DestinationFolder_Context corba_context; - GNOME_Evolution_ShellComponentDnd_Data corba_data; - EvolutionShellComponentClient *component_client; - EFolder *folder; - CORBA_Environment ev; - - component_client = get_component_at_path (storage_set, path); - if (component_client == NULL) - return FALSE; - - destination_folder_interface = evolution_shell_component_client_get_dnd_destination_interface (component_client); - if (destination_folder_interface == NULL) - return FALSE; - - CORBA_exception_init (&ev); - - folder = e_storage_set_get_folder (storage_set, path); - - corba_context.dndType = (char *) target_type; - corba_context.possibleActions = convert_gdk_drag_action_set_to_corba (context->actions); - corba_context.suggestedAction = convert_gdk_drag_action_to_corba (context->suggested_action); - - corba_data.format = selection_data->format; - corba_data.target = 0; /* selection_data->target FIXME */ - - corba_data.bytes._release = FALSE; - - if (selection_data->data == NULL) { - /* If data is NULL the length is -1 and this would mess things - up so we handle it separately. */ - corba_data.bytes._length = 0; - corba_data.bytes._buffer = NULL; - } else { - corba_data.bytes._length = selection_data->length; - corba_data.bytes._buffer = selection_data->data; - } - - /* pass off the data to the component's DestinationFolderInterface */ - return GNOME_Evolution_ShellComponentDnd_DestinationFolder_handleDrop (destination_folder_interface, - e_folder_get_physical_uri (folder), - e_folder_get_type_string (folder), - &corba_context, - convert_gdk_drag_action_to_corba (context->action), - &corba_data, - &ev); -} - -void -e_folder_dnd_bridge_data_received (GtkWidget *widget, - GdkDragContext *context, - GtkSelectionData *selection_data, - unsigned int time, - EStorageSet *storage_set, - const char *path) -{ - char *target_type; - gboolean handled; - - g_return_if_fail (GTK_IS_WIDGET (widget)); - g_return_if_fail (context != NULL); - g_return_if_fail (E_IS_STORAGE_SET (storage_set)); - g_return_if_fail (path != NULL); - - if (selection_data->data == NULL && selection_data->length == -1) - return; - - target_type = gdk_atom_name (selection_data->target); - - if (strcmp (target_type, E_FOLDER_DND_PATH_TARGET_TYPE) != 0) { - handled = handle_data_received_non_path (context, selection_data, storage_set, - path, target_type); - } else { - GtkWindow *toplevel_window; - - toplevel_window = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (widget))); - handled = handle_data_received_path (context, selection_data, storage_set, path, - toplevel_window); - } - - g_free (target_type); - gtk_drag_finish (context, handled, FALSE, time); -} - |