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gimp/app/gui/gui-unique.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 <gegl.h>
#include <gtk/gtk.h>
#ifdef G_OS_WIN32
#include <windows.h>
#endif
#ifdef GDK_WINDOWING_QUARTZ
#include <Carbon/Carbon.h>
#include <sys/param.h>
#endif
#if HAVE_DBUS_GLIB
#define DBUS_API_SUBJECT_TO_CHANGE
#include <dbus/dbus-glib.h>
#include <dbus/dbus-glib-lowlevel.h>
#endif
#include "gui/gui-types.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "display/gimpdisplay.h"
#include "file/file-open.h"
#include "gimpdbusservice.h"
#include "gui-unique.h"
#if HAVE_DBUS_GLIB
static void gui_dbus_service_init (Gimp *gimp);
static void gui_dbus_service_exit (void);
static DBusGConnection *dbus_connection = NULL;
#endif
#ifdef G_OS_WIN32
static void gui_unique_win32_init (Gimp *gimp);
static void gui_unique_win32_exit (void);
static Gimp *unique_gimp = NULL;
static HWND proxy_window = NULL;
#endif
#ifdef GDK_WINDOWING_QUARTZ
static void gui_unique_mac_init (Gimp *gimp);
static void gui_unique_mac_exit (void);
static Gimp *unique_gimp = NULL;
AEEventHandlerUPP open_document_callback_proc;
#endif
void
gui_unique_init (Gimp *gimp)
{
#ifdef G_OS_WIN32
gui_unique_win32_init (gimp);
#elif HAVE_DBUS_GLIB
gui_dbus_service_init (gimp);
#endif
#ifdef GDK_WINDOWING_QUARTZ
gui_unique_mac_init (gimp);
#endif
}
void
gui_unique_exit (void)
{
#ifdef G_OS_WIN32
gui_unique_win32_exit ();
#elif HAVE_DBUS_GLIB
gui_dbus_service_exit ();
#endif
#ifdef GDK_WINDOWING_QUARTZ
gui_unique_mac_exit ();
#endif
}
#if HAVE_DBUS_GLIB
static void
gui_dbus_service_init (Gimp *gimp)
{
GError *error = NULL;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (dbus_connection == NULL);
dbus_connection = dbus_g_bus_get (DBUS_BUS_SESSION, &error);
if (dbus_connection)
{
GObject *service = gimp_dbus_service_new (gimp);
dbus_bus_request_name (dbus_g_connection_get_connection (dbus_connection),
GIMP_DBUS_SERVICE_NAME, 0, NULL);
dbus_g_connection_register_g_object (dbus_connection,
GIMP_DBUS_SERVICE_PATH, service);
}
else
{
g_printerr ("%s\n", error->message);
g_error_free (error);
}
}
static void
gui_dbus_service_exit (void)
{
if (dbus_connection)
{
dbus_g_connection_unref (dbus_connection);
dbus_connection = NULL;
}
}
#endif /* HAVE_DBUS_GLIB */
#ifdef G_OS_WIN32
typedef struct
{
gchar *name;
gboolean as_new;
} IdleOpenData;
static IdleOpenData *
idle_open_data_new (const gchar *name,
gint len,
gboolean as_new)
{
IdleOpenData *data = g_slice_new0 (IdleOpenData);
if (len > 0)
{
data->name = g_strdup (name);
data->as_new = as_new;
}
return data;
}
static void
idle_open_data_free (IdleOpenData *data)
{
g_free (data->name);
g_slice_free (IdleOpenData, data);
}
static gboolean
gui_unique_win32_idle_open (IdleOpenData *data)
{
/* We want to be called again later in case that GIMP is not fully
* started yet.
*/
if (! gimp_is_restored (unique_gimp))
return TRUE;
if (data->name)
{
file_open_from_command_line (unique_gimp, data->name, data->as_new);
}
else
{
/* raise the first display */
GimpObject *display;
display = gimp_container_get_first_child (unique_gimp->displays);
gimp_display_shell_present (gimp_display_get_shell (GIMP_DISPLAY (display)));
}
return FALSE;
}
static LRESULT CALLBACK
gui_unique_win32_message_handler (HWND hWnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
switch (uMsg)
{
case WM_COPYDATA:
if (unique_gimp)
{
COPYDATASTRUCT *copydata = (COPYDATASTRUCT *) lParam;
GSource *source;
GClosure *closure;
IdleOpenData *data;
data = idle_open_data_new (copydata->lpData,
copydata->cbData,
copydata->dwData != 0);
closure = g_cclosure_new (G_CALLBACK (gui_unique_win32_idle_open),
data,
(GClosureNotify) idle_open_data_free);
g_object_watch_closure (unique_gimp, closure);
source = g_idle_source_new ();
g_source_set_priority (source, G_PRIORITY_LOW);
g_source_set_closure (source, closure);
g_source_attach (source, NULL);
g_source_unref (source);
}
return TRUE;
default:
return DefWindowProcW (hWnd, uMsg, wParam, lParam);
}
}
static void
gui_unique_win32_init (Gimp *gimp)
{
WNDCLASSW wc;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (unique_gimp == NULL);
unique_gimp = gimp;
/* register window class for proxy window */
memset (&wc, 0, sizeof (wc));
wc.hInstance = GetModuleHandle (NULL);
wc.lpfnWndProc = gui_unique_win32_message_handler;
wc.lpszClassName = GIMP_UNIQUE_WIN32_WINDOW_CLASS;
RegisterClassW (&wc);
proxy_window = CreateWindowExW (0,
GIMP_UNIQUE_WIN32_WINDOW_CLASS,
GIMP_UNIQUE_WIN32_WINDOW_NAME,
WS_POPUP, 0, 0, 1, 1, NULL, NULL, wc.hInstance, NULL);
}
static void
gui_unique_win32_exit (void)
{
g_return_if_fail (GIMP_IS_GIMP (unique_gimp));
unique_gimp = NULL;
DestroyWindow (proxy_window);
}
#endif /* G_OS_WIN32 */
#ifdef GDK_WINDOWING_QUARTZ
static gboolean
gui_unique_mac_idle_open (gchar *data)
{
/* We want to be called again later in case that GIMP is not fully
* started yet.
*/
if (! gimp_is_restored (unique_gimp))
return TRUE;
if (data)
{
file_open_from_command_line (unique_gimp, data, FALSE);
}
return FALSE;
}
/* Handle the kAEOpenDocuments Apple events. This will register
* an idle source callback for each filename in the event.
*/
static pascal OSErr
gui_unique_mac_open_documents (const AppleEvent *inAppleEvent,
AppleEvent *outAppleEvent,
long handlerRefcon)
{
OSStatus status;
AEDescList documents;
gchar path[MAXPATHLEN];
status = AEGetParamDesc (inAppleEvent,
keyDirectObject, typeAEList,
&documents);
if (status == noErr)
{
long count = 0;
int i;
AECountItems (&documents, &count);
for (i = 0; i < count; i++)
{
FSRef ref;
gchar *callback_path;
GSource *source;
GClosure *closure;
status = AEGetNthPtr (&documents, i + 1, typeFSRef,
0, 0, &ref, sizeof (ref),
0);
if (status != noErr)
continue;
FSRefMakePath (&ref, (UInt8 *) path, MAXPATHLEN);
callback_path = g_strdup (path);
closure = g_cclosure_new (G_CALLBACK (gui_unique_mac_idle_open),
(gpointer) callback_path,
(GClosureNotify) g_free);
g_object_watch_closure (G_OBJECT (unique_gimp), closure);
source = g_idle_source_new ();
g_source_set_priority (source, G_PRIORITY_LOW);
g_source_set_closure (source, closure);
g_source_attach (source, NULL);
g_source_unref (source);
}
}
return status;
}
static void
gui_unique_mac_init (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (unique_gimp == NULL);
unique_gimp = gimp;
open_document_callback_proc = NewAEEventHandlerUPP(gui_unique_mac_open_documents);
AEInstallEventHandler (kCoreEventClass, kAEOpenDocuments,
open_document_callback_proc,
0L, TRUE);
}
static void
gui_unique_mac_exit (void)
{
unique_gimp = NULL;
AERemoveEventHandler (kCoreEventClass, kAEOpenDocuments,
open_document_callback_proc, TRUE);
DisposeAEEventHandlerUPP(open_document_callback_proc);
}
#endif /* GDK_WINDOWING_QUARTZ */
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