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authorSergey Sharybin <sergey.vfx@gmail.com>2012-02-17 20:58:09 +0400
committerSergey Sharybin <sergey.vfx@gmail.com>2012-02-17 20:58:09 +0400
commite8a1daaf9bda8f03723879d76557278b9a025c0a (patch)
treecc67b46ef3a957c893df7e288354f126823d4d5e
parent7c15fb4f2c710a15e0ae7bd758f1cf74a4e97e36 (diff)
Drag-n-drop support on Linux
This commit implements drag-n-drop support from external applications into Blender. Used xdnd implementation from Paul Sheer.
Diffstat
-rw-r--r--extern/CMakeLists.txt4
-rw-r--r--extern/SConscript3
-rw-r--r--extern/xdnd/CMakeLists.txt43
-rw-r--r--extern/xdnd/SConscript10
-rw-r--r--extern/xdnd/xdnd.c1599
-rw-r--r--extern/xdnd/xdnd.h221
-rw-r--r--intern/ghost/CMakeLists.txt6
-rw-r--r--intern/ghost/SConscript2
-rw-r--r--intern/ghost/intern/GHOST_DropTargetX11.cpp310
-rw-r--r--intern/ghost/intern/GHOST_DropTargetX11.h135
-rw-r--r--intern/ghost/intern/GHOST_SystemX11.cpp22
-rw-r--r--intern/ghost/intern/GHOST_SystemX11.h12
-rw-r--r--intern/ghost/intern/GHOST_WindowX11.cpp6
-rw-r--r--intern/ghost/intern/GHOST_WindowX11.h6
-rw-r--r--source/creator/CMakeLists.txt1
15 files changed, 2379 insertions, 1 deletions
diff --git a/extern/CMakeLists.txt b/extern/CMakeLists.txt
index 8442e5d0c71..5b2639ecb0d 100644
--- a/extern/CMakeLists.txt
+++ b/extern/CMakeLists.txt
@@ -71,3 +71,7 @@ endif()
if(WITH_CARVE)
add_subdirectory(carve)
endif()
+
+if(UNIX AND NOT APPLE)
+ add_subdirectory(xdnd)
+endif()
diff --git a/extern/SConscript b/extern/SConscript
index 738342b3dcc..5ecf9b1b2af 100644
--- a/extern/SConscript
+++ b/extern/SConscript
@@ -34,3 +34,6 @@ if env['WITH_BF_LIBMV']:
if env['WITH_BF_CARVE']:
SConscript(['carve/SConscript'])
+
+if env['OURPLATFORM'] in ('linux', 'openbsd3', 'sunos5', 'freebsd7', 'freebsd8', 'freebsd9', 'aix4', 'aix5'):
+ SConscript(['xdnd/SConscript'])
diff --git a/extern/xdnd/CMakeLists.txt b/extern/xdnd/CMakeLists.txt
new file mode 100644
index 00000000000..f7eded73d42
--- /dev/null
+++ b/extern/xdnd/CMakeLists.txt
@@ -0,0 +1,43 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# 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 2
+# 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, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# The Original Code is Copyright (C) 2012, Blender Foundation
+# All rights reserved.
+#
+# The Original Code is: all of this file.
+#
+# Contributor(s): Sergey Sharybin.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(INC
+ .
+)
+
+set(INC_SYS
+
+)
+
+set(SRC
+ xdnd.c
+ xdnd.h
+)
+
+add_definitions(
+ -DHAVE_SYS_TIME_H
+)
+
+blender_add_lib(extern_xdnd "${SRC}" "${INC}" "${INC_SYS}")
diff --git a/extern/xdnd/SConscript b/extern/xdnd/SConscript
new file mode 100644
index 00000000000..6f1fe72cc28
--- /dev/null
+++ b/extern/xdnd/SConscript
@@ -0,0 +1,10 @@
+#!/usr/bin/python
+
+Import('env')
+
+defs = ['HAVE_SYS_TIME_H']
+sources = env.Glob('*.c')
+
+incs = '.'
+
+env.BlenderLib ( 'extern_xdnd', sources, Split(incs), defs, libtype=['extern','player'], priority=[10, 185])
diff --git a/extern/xdnd/xdnd.c b/extern/xdnd/xdnd.c
new file mode 100644
index 00000000000..9bdee89c1ce
--- /dev/null
+++ b/extern/xdnd/xdnd.c
@@ -0,0 +1,1599 @@
+/* xdnd.c, xdnd.h - C program library for handling the Xdnd protocol
+ Copyright (C) 1996-2000 Paul Sheer
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307, USA.
+ */
+
+
+/*
+ Released 1998-08-07
+ Changes:
+
+ 2000-08-08: INCR protocol implemented.
+
+*/
+
+/*
+ DONE:
+ - INCR protocol now implemented
+
+ TODO:
+ - action_choose_dialog not yet supported (never called)
+ - widget_delete_selection not yet supported and DELETE requests are ignored
+ - not yet tested with applications that only supported XDND 0 or 1
+*/
+
+#include <X11/Xlib.h>
+#include <X11/X.h>
+#include <X11/Xatom.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#if TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# if HAVE_SYS_TIME_H
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+#include <sys/types.h>
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#ifdef HAVE_SYS_SELECT_H
+# include <sys/select.h>
+#endif
+
+#include "xdnd.h"
+
+static void xdnd_send_enter (DndClass * dnd, Window window, Window from, Atom * typelist);
+static void xdnd_send_position (DndClass * dnd, Window window, Window from, Atom action, int x, int y,
+ unsigned long etime);
+static void xdnd_send_status (DndClass * dnd, Window window, Window from, int will_accept, int want_position,
+ int x, int y, int w, int h, Atom action);
+static void xdnd_send_leave (DndClass * dnd, Window window, Window from);
+static void xdnd_send_drop (DndClass * dnd, Window window, Window from, unsigned long etime);
+static void xdnd_send_finished (DndClass * dnd, Window window, Window from, int error);
+static int xdnd_convert_selection (DndClass * dnd, Window window, Window requester, Atom type);
+static void xdnd_selection_send (DndClass * dnd, XSelectionRequestEvent * request, unsigned char *data,
+ int length);
+static int xdnd_get_selection (DndClass * dnd, Window from, Atom property, Window insert);
+
+
+/* just to remind us : */
+
+#if 0
+typedef struct {
+ int type;
+ unsigned long serial;
+ Bool send_event;
+ Display *display;
+ Window window;
+ Atom message_type;
+ int format;
+ union {
+ char b[20];
+ short s[10];
+ long l[5];
+ } data;
+} XClientMessageEvent;
+XClientMessageEvent xclient;
+#endif
+
+/* #define DND_DEBUG */
+
+#define xdnd_xfree(x) {if (x) { free (x); x = 0; }}
+
+#ifdef DND_DEBUG
+
+#include <sys/time.h>
+#include <unistd.h>
+
+char *xdnd_debug_milliseconds (void)
+{
+ struct timeval tv;
+ static char r[22];
+ gettimeofday (&tv, 0);
+ sprintf (r, "%.2ld.%.3ld", tv.tv_sec % 100L, tv.tv_usec / 1000L);
+ return r;
+}
+
+#define dnd_debug1(a) printf("%s: %d: %s: " a "\n", __FILE__, __LINE__, xdnd_debug_milliseconds ())
+#define dnd_debug2(a,b) printf("%s: %d: %s: " a "\n", __FILE__, __LINE__, xdnd_debug_milliseconds (), b)
+#define dnd_debug3(a,b,c) printf("%s: %d: %s: " a "\n", __FILE__, __LINE__, xdnd_debug_milliseconds (), b, c)
+#define dnd_debug4(a,b,c,d) printf("%s: %d: %s: " a "\n", __FILE__, __LINE__, xdnd_debug_milliseconds (), b, c, d)
+#else
+#define dnd_debug1(a)
+#define dnd_debug2(a,b)
+#define dnd_debug3(a,b,c)
+#define dnd_debug4(a,b,c,d)
+#endif
+
+#define dnd_warning(a) fprintf (stderr, a)
+
+#define dnd_version_at_least(a,b) ((a) >= (b))
+
+static unsigned char dnd_copy_cursor_bits[] =
+{
+ 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x0f, 0x00, 0x02, 0x00, 0x08, 0x01,
+ 0x02, 0x00, 0x08, 0x01, 0x02, 0x00, 0x08, 0x01, 0x02, 0x00, 0xe8, 0x0f,
+ 0x02, 0x00, 0x08, 0x01, 0x02, 0x00, 0x08, 0x01, 0x02, 0x00, 0x08, 0x01,
+ 0x02, 0x00, 0x08, 0x00, 0x02, 0x04, 0x08, 0x00, 0x02, 0x0c, 0x08, 0x00,
+ 0x02, 0x1c, 0x08, 0x00, 0x02, 0x3c, 0x08, 0x00, 0x02, 0x7c, 0x08, 0x00,
+ 0x02, 0xfc, 0x08, 0x00, 0x02, 0xfc, 0x09, 0x00, 0x02, 0xfc, 0x0b, 0x00,
+ 0x02, 0x7c, 0x08, 0x00, 0xfe, 0x6d, 0x0f, 0x00, 0x00, 0xc4, 0x00, 0x00,
+ 0x00, 0xc0, 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x80, 0x01, 0x00,
+ 0x00, 0x00, 0x00, 0x00};
+
+static unsigned char dnd_copy_mask_bits[] =
+{
+ 0xff, 0xff, 0x1f, 0x00, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, 0xff, 0x1f,
+ 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f,
+ 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f,
+ 0x07, 0x06, 0xfc, 0x1f, 0x07, 0x0e, 0xfc, 0x1f, 0x07, 0x1e, 0x1c, 0x00,
+ 0x07, 0x3e, 0x1c, 0x00, 0x07, 0x7e, 0x1c, 0x00, 0x07, 0xfe, 0x1c, 0x00,
+ 0x07, 0xfe, 0x1d, 0x00, 0x07, 0xfe, 0x1f, 0x00, 0x07, 0xfe, 0x1f, 0x00,
+ 0xff, 0xff, 0x1f, 0x00, 0xff, 0xff, 0x1e, 0x00, 0xff, 0xef, 0x1f, 0x00,
+ 0x00, 0xe6, 0x01, 0x00, 0x00, 0xc0, 0x03, 0x00, 0x00, 0xc0, 0x03, 0x00,
+ 0x00, 0x80, 0x01, 0x00};
+
+static unsigned char dnd_move_cursor_bits[] =
+{
+ 0x00, 0x00, 0x00, 0xfe, 0xff, 0x0f, 0x02, 0x00, 0x08, 0x02, 0x00, 0x08,
+ 0x02, 0x00, 0x08, 0x02, 0x00, 0x08, 0x02, 0x00, 0x08, 0x02, 0x00, 0x08,
+ 0x02, 0x00, 0x08, 0x02, 0x00, 0x08, 0x02, 0x04, 0x08, 0x02, 0x0c, 0x08,
+ 0x02, 0x1c, 0x08, 0x02, 0x3c, 0x08, 0x02, 0x7c, 0x08, 0x02, 0xfc, 0x08,
+ 0x02, 0xfc, 0x09, 0x02, 0xfc, 0x0b, 0x02, 0x7c, 0x08, 0xfe, 0x6d, 0x0f,
+ 0x00, 0xc4, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x80, 0x01, 0x00, 0x80, 0x01,
+ 0x00, 0x00, 0x00};
+
+static unsigned char dnd_move_mask_bits[] =
+{
+ 0xff, 0xff, 0x1f, 0xff, 0xff, 0x1f, 0xff, 0xff, 0x1f, 0x07, 0x00, 0x1c,
+ 0x07, 0x00, 0x1c, 0x07, 0x00, 0x1c, 0x07, 0x00, 0x1c, 0x07, 0x00, 0x1c,
+ 0x07, 0x00, 0x1c, 0x07, 0x06, 0x1c, 0x07, 0x0e, 0x1c, 0x07, 0x1e, 0x1c,
+ 0x07, 0x3e, 0x1c, 0x07, 0x7e, 0x1c, 0x07, 0xfe, 0x1c, 0x07, 0xfe, 0x1d,
+ 0x07, 0xfe, 0x1f, 0x07, 0xfe, 0x1f, 0xff, 0xff, 0x1f, 0xff, 0xff, 0x1e,
+ 0xff, 0xef, 0x1f, 0x00, 0xe6, 0x01, 0x00, 0xc0, 0x03, 0x00, 0xc0, 0x03,
+ 0x00, 0x80, 0x01};
+
+static unsigned char dnd_link_cursor_bits[] =
+{
+ 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x0f, 0x00, 0x02, 0x00, 0x08, 0x01,
+ 0x02, 0x00, 0x88, 0x00, 0x02, 0x00, 0x48, 0x00, 0x02, 0x00, 0xe8, 0x0f,
+ 0x02, 0x00, 0x48, 0x00, 0x02, 0x00, 0x88, 0x00, 0x02, 0x00, 0x08, 0x01,
+ 0x02, 0x00, 0x08, 0x00, 0x02, 0x04, 0x08, 0x00, 0x02, 0x0c, 0x08, 0x00,
+ 0x02, 0x1c, 0x08, 0x00, 0x02, 0x3c, 0x08, 0x00, 0x02, 0x7c, 0x08, 0x00,
+ 0x02, 0xfc, 0x08, 0x00, 0x02, 0xfc, 0x09, 0x00, 0x02, 0xfc, 0x0b, 0x00,
+ 0x02, 0x7c, 0x08, 0x00, 0xfe, 0x6d, 0x0f, 0x00, 0x00, 0xc4, 0x00, 0x00,
+ 0x00, 0xc0, 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x80, 0x01, 0x00,
+ 0x00, 0x00, 0x00, 0x00};
+
+static unsigned char dnd_link_mask_bits[] =
+{
+ 0xff, 0xff, 0x1f, 0x00, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, 0xff, 0x1f,
+ 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f,
+ 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f,
+ 0x07, 0x06, 0xfc, 0x1f, 0x07, 0x0e, 0xfc, 0x1f, 0x07, 0x1e, 0x1c, 0x00,
+ 0x07, 0x3e, 0x1c, 0x00, 0x07, 0x7e, 0x1c, 0x00, 0x07, 0xfe, 0x1c, 0x00,
+ 0x07, 0xfe, 0x1d, 0x00, 0x07, 0xfe, 0x1f, 0x00, 0x07, 0xfe, 0x1f, 0x00,
+ 0xff, 0xff, 0x1f, 0x00, 0xff, 0xff, 0x1e, 0x00, 0xff, 0xef, 0x1f, 0x00,
+ 0x00, 0xe6, 0x01, 0x00, 0x00, 0xc0, 0x03, 0x00, 0x00, 0xc0, 0x03, 0x00,
+ 0x00, 0x80, 0x01, 0x00};
+
+static unsigned char dnd_ask_cursor_bits[] =
+{
+ 0x00, 0x00, 0x00, 0x00, 0xfe, 0xff, 0x0f, 0x00, 0x02, 0x00, 0x88, 0x03,
+ 0x02, 0x00, 0x48, 0x04, 0x02, 0x00, 0x08, 0x04, 0x02, 0x00, 0x08, 0x02,
+ 0x02, 0x00, 0x08, 0x01, 0x02, 0x00, 0x08, 0x01, 0x02, 0x00, 0x08, 0x00,
+ 0x02, 0x00, 0x08, 0x01, 0x02, 0x04, 0x08, 0x00, 0x02, 0x0c, 0x08, 0x00,
+ 0x02, 0x1c, 0x08, 0x00, 0x02, 0x3c, 0x08, 0x00, 0x02, 0x7c, 0x08, 0x00,
+ 0x02, 0xfc, 0x08, 0x00, 0x02, 0xfc, 0x09, 0x00, 0x02, 0xfc, 0x0b, 0x00,
+ 0x02, 0x7c, 0x08, 0x00, 0xfe, 0x6d, 0x0f, 0x00, 0x00, 0xc4, 0x00, 0x00,
+ 0x00, 0xc0, 0x00, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00, 0x80, 0x01, 0x00,
+ 0x00, 0x00, 0x00, 0x00};
+
+static unsigned char dnd_ask_mask_bits[] =
+{
+ 0xff, 0xff, 0x1f, 0x00, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, 0xff, 0x1f,
+ 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f,
+ 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f, 0x07, 0x00, 0xfc, 0x1f,
+ 0x07, 0x06, 0xfc, 0x1f, 0x07, 0x0e, 0xfc, 0x1f, 0x07, 0x1e, 0x1c, 0x00,
+ 0x07, 0x3e, 0x1c, 0x00, 0x07, 0x7e, 0x1c, 0x00, 0x07, 0xfe, 0x1c, 0x00,
+ 0x07, 0xfe, 0x1d, 0x00, 0x07, 0xfe, 0x1f, 0x00, 0x07, 0xfe, 0x1f, 0x00,
+ 0xff, 0xff, 0x1f, 0x00, 0xff, 0xff, 0x1e, 0x00, 0xff, 0xef, 0x1f, 0x00,
+ 0x00, 0xe6, 0x01, 0x00, 0x00, 0xc0, 0x03, 0x00, 0x00, 0xc0, 0x03, 0x00,
+ 0x00, 0x80, 0x01, 0x00};
+
+static DndCursor dnd_cursors[] =
+{
+ {29, 25, 10, 10, dnd_copy_cursor_bits, dnd_copy_mask_bits, "XdndActionCopy", 0, 0, 0, 0},
+ {21, 25, 10, 10, dnd_move_cursor_bits, dnd_move_mask_bits, "XdndActionMove", 0, 0, 0, 0},
+ {29, 25, 10, 10, dnd_link_cursor_bits, dnd_link_mask_bits, "XdndActionLink", 0, 0, 0, 0},
+ {29, 25, 10, 10, dnd_ask_cursor_bits, dnd_ask_mask_bits, "XdndActionAsk", 0, 0, 0, 0},
+ {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+};
+
+void xdnd_reset (DndClass * dnd)
+{
+ dnd->stage = XDND_DROP_STAGE_IDLE;
+ dnd->dragging_version = 0;
+ dnd->internal_drag = 0;
+ dnd->want_position = 0;
+ dnd->ready_to_drop = 0;
+ dnd->will_accept = 0;
+ dnd->rectangle.x = dnd->rectangle.y = 0;
+ dnd->rectangle.width = dnd->rectangle.height = 0;
+ dnd->dropper_window = 0;
+ dnd->dropper_toplevel = 0;
+ dnd->dragger_window = 0;
+ dnd->dragger_typelist = 0;
+ dnd->desired_type = 0;
+ dnd->time = 0;
+}
+
+void xdnd_init (DndClass * dnd, Display * display)
+{
+ DndCursor *cursor;
+ XColor black, white;
+ memset (dnd, 0, sizeof (*dnd));
+
+ dnd->display = display;
+ dnd->root_window = DefaultRootWindow (display);
+ dnd->version = XDND_VERSION;
+
+ dnd->XdndAware = XInternAtom (dnd->display, "XdndAware", False);
+ dnd->XdndSelection = XInternAtom (dnd->display, "XdndSelection", False);
+ dnd->XdndEnter = XInternAtom (dnd->display, "XdndEnter", False);
+ dnd->XdndLeave = XInternAtom (dnd->display, "XdndLeave", False);
+ dnd->XdndPosition = XInternAtom (dnd->display, "XdndPosition", False);
+ dnd->XdndDrop = XInternAtom (dnd->display, "XdndDrop", False);
+ dnd->XdndFinished = XInternAtom (dnd->display, "XdndFinished", False);
+ dnd->XdndStatus = XInternAtom (dnd->display, "XdndStatus", False);
+ dnd->XdndActionCopy = XInternAtom (dnd->display, "XdndActionCopy", False);
+ dnd->XdndActionMove = XInternAtom (dnd->display, "XdndActionMove", False);
+ dnd->XdndActionLink = XInternAtom (dnd->display, "XdndActionLink", False);
+ dnd->XdndActionAsk = XInternAtom (dnd->display, "XdndActionAsk", False);
+ dnd->XdndActionPrivate = XInternAtom (dnd->display, "XdndActionPrivate", False);
+ dnd->XdndTypeList = XInternAtom (dnd->display, "XdndTypeList", False);
+ dnd->XdndActionList = XInternAtom (dnd->display, "XdndActionList", False);
+ dnd->XdndActionDescription = XInternAtom (dnd->display, "XdndActionDescription", False);
+
+ dnd->Xdnd_NON_PROTOCOL_ATOM = XInternAtom (dnd->display, "JXSelectionWindowProperty", False);
+
+ xdnd_reset (dnd);
+
+ dnd->cursors = dnd_cursors;
+
+ black.pixel = BlackPixel (dnd->display, DefaultScreen (dnd->display));
+ white.pixel = WhitePixel (dnd->display, DefaultScreen (dnd->display));
+
+ XQueryColor (dnd->display, DefaultColormap (dnd->display, DefaultScreen (dnd->display)), &black);
+ XQueryColor (dnd->display, DefaultColormap (dnd->display, DefaultScreen (dnd->display)), &white);
+
+ for (cursor = &dnd->cursors[0]; cursor->width; cursor++) {
+ cursor->image_pixmap = XCreateBitmapFromData \
+ (dnd->display, dnd->root_window, (char *) cursor->image_data, cursor->width, cursor->height);
+ cursor->mask_pixmap = XCreateBitmapFromData \
+ (dnd->display, dnd->root_window, (char *) cursor->mask_data, cursor->width, cursor->height);
+ cursor->cursor = XCreatePixmapCursor (dnd->display, cursor->image_pixmap,
+ cursor->mask_pixmap, &black, &white, cursor->x, cursor->y);
+ XFreePixmap (dnd->display, cursor->image_pixmap);
+ XFreePixmap (dnd->display, cursor->mask_pixmap);
+ cursor->action = XInternAtom (dnd->display, cursor->_action, False);
+ }
+}
+
+void xdnd_shut (DndClass * dnd)
+{
+ DndCursor *cursor;
+ for (cursor = &dnd->cursors[0]; cursor->width; cursor++)
+ XFreeCursor (dnd->display, cursor->cursor);
+ memset (dnd, 0, sizeof (*dnd));
+ return;
+}
+
+
+/* typelist is a null terminated array */
+static int array_length (Atom * a)
+{
+ int n;
+ for (n = 0; a[n]; n++);
+ return n;
+}
+
+void xdnd_set_dnd_aware (DndClass * dnd, Window window, Atom * typelist)
+{
+ Window root_return, parent;
+ unsigned int nchildren_return;
+ Window *children_return = 0;
+ int r, s;
+ if(!window) return;
+ if (dnd->widget_exists)
+ if (!(*dnd->widget_exists) (dnd, window))
+ return;
+ s = XChangeProperty (dnd->display, window, dnd->XdndAware, XA_ATOM, 32, PropModeReplace,
+ (unsigned char *) &dnd->version, 1);
+#if 1
+ dnd_debug4 ("XChangeProperty() = %d, window = %ld, widget = %s", s, window, "<WIDGET>");
+#endif
+ if (s && typelist) {
+ int n;
+ n = array_length (typelist);
+ if (n)
+ s = XChangeProperty (dnd->display, window, dnd->XdndAware, XA_ATOM, 32, PropModeAppend,
+ (unsigned char *) typelist, n);
+ }
+ r =
+ XQueryTree (dnd->display, window, &root_return, &parent, &children_return,
+ &nchildren_return);
+ if (children_return)
+ XFree (children_return);
+ if (r)
+ xdnd_set_dnd_aware (dnd, parent, typelist);
+}
+
+int xdnd_is_dnd_aware (DndClass * dnd, Window window, int *version, Atom * typelist)
+{
+ Atom actual;
+ int format;
+ unsigned long count, remaining;
+ unsigned char *data = 0;
+ Atom *types, *t;
+ int result = 1;
+
+ *version = 0;
+ XGetWindowProperty (dnd->display, window, dnd->XdndAware,
+ 0, 0x8000000L, False, XA_ATOM,
+ &actual, &format,
+ &count, &remaining, &data);
+
+ if (actual != XA_ATOM || format != 32 || count == 0 || !data) {
+ dnd_debug2 ("XGetWindowProperty failed in xdnd_is_dnd_aware - XdndAware = %ld", dnd->XdndAware);
+ if (data)
+ XFree (data);
+ return 0;
+ }
+ types = (Atom *) data;
+#if XDND_VERSION >= 3
+ if (types[0] < 3) {
+ if (data)
+ XFree (data);
+ return 0;
+ }
+#endif
+ *version = dnd->version < types[0] ? dnd->version : types[0]; /* minimum */
+ dnd_debug2 ("Using XDND version %d", *version);
+ if (count > 1) {
+ result = 0;
+ for (t = typelist; *t; t++) {
+ int j;
+ for (j = 1; j < count; j++) {
+ if (types[j] == *t) {
+ result = 1;
+ break;
+ }
+ }
+ if (result)
+ break;
+ }
+ }
+ XFree (data);
+ return result;
+}
+
+void xdnd_set_type_list (DndClass * dnd, Window window, Atom * typelist)
+{
+ int n;
+ n = array_length (typelist);
+ XChangeProperty (dnd->display, window, dnd->XdndTypeList, XA_ATOM, 32,
+ PropModeReplace, (unsigned char *) typelist, n);
+}
+
+/* result must be free'd */
+void xdnd_get_type_list (DndClass * dnd, Window window, Atom ** typelist)
+{
+ Atom type, *a;
+ int format, i;
+ unsigned long count, remaining;
+ unsigned char *data = NULL;
+
+ *typelist = 0;
+
+ XGetWindowProperty (dnd->display, window, dnd->XdndTypeList,
+ 0, 0x8000000L, False, XA_ATOM,
+ &type, &format, &count, &remaining, &data);
+
+ if (type != XA_ATOM || format != 32 || count == 0 || !data) {
+ if (data)
+ XFree (data);
+ dnd_debug2 ("XGetWindowProperty failed in xdnd_get_type_list - dnd->XdndTypeList = %ld", dnd->XdndTypeList);
+ return;
+ }
+ *typelist = malloc ((count + 1) * sizeof (Atom));
+ a = (Atom *) data;
+ for (i = 0; i < count; i++)
+ (*typelist)[i] = a[i];
+ (*typelist)[count] = 0;
+
+ XFree (data);
+}
+
+void xdnd_get_three_types (DndClass * dnd, XEvent * xevent, Atom ** typelist)
+{
+ int i;
+ *typelist = malloc ((XDND_THREE + 1) * sizeof (Atom));
+ for (i = 0; i < XDND_THREE; i++)
+ (*typelist)[i] = XDND_ENTER_TYPE (xevent, i);
+ (*typelist)[XDND_THREE] = 0; /* although (*typelist)[1] or (*typelist)[2] may also be set to nill */
+}
+
+/* result must be free'd */
+static char *concat_string_list (char **t, int *bytes)
+{
+ int l, n;
+ char *s;
+ for (l = n = 0;; n++) {
+ if (!t[n])
+ break;
+ if (!t[n][0])
+ break;
+ l += strlen (t[n]) + 1;
+ }
+ s = malloc (l + 1);
+ for (l = n = 0;; n++) {
+ if (!t[n])
+ break;
+ if (!(t[n][0]))
+ break;
+ strcpy (s + l, t[n]);
+ l += strlen (t[n]) + 1;
+ }
+ *bytes = l;
+ s[l] = '\0';
+ return s;
+}
+
+void xdnd_set_actions (DndClass * dnd, Window window, Atom * actions, char **descriptions)
+{
+ int n, l;
+ char *s;
+ n = array_length (actions);
+
+ XChangeProperty (dnd->display, window, dnd->XdndActionList, XA_ATOM, 32,
+ PropModeReplace, (unsigned char *) actions, n);
+
+ s = concat_string_list (descriptions, &l);
+ XChangeProperty (dnd->display, window, dnd->XdndActionList, XA_STRING, 8,
+ PropModeReplace, (unsigned char *) s, l);
+ xdnd_xfree (s);
+}
+
+/* returns 1 on error or no actions, otherwise result must be free'd
+ xdnd_get_actions (window, &actions, &descriptions);
+ free (actions); free (descriptions); */
+int xdnd_get_actions (DndClass * dnd, Window window, Atom ** actions, char ***descriptions)
+{
+ Atom type, *a;
+ int format, i;
+ unsigned long count, dcount, remaining;
+ unsigned char *data = 0, *r;
+
+ *actions = 0;
+ *descriptions = 0;
+ XGetWindowProperty (dnd->display, window, dnd->XdndActionList,
+ 0, 0x8000000L, False, XA_ATOM,
+ &type, &format, &count, &remaining, &data);
+
+ if (type != XA_ATOM || format != 32 || count == 0 || !data) {
+ if (data)
+ XFree (data);
+ return 1;
+ }
+ *actions = malloc ((count + 1) * sizeof (Atom));
+ a = (Atom *) data;
+ for (i = 0; i < count; i++)
+ (*actions)[i] = a[i];
+ (*actions)[count] = 0;
+
+ XFree (data);
+
+ data = 0;
+ XGetWindowProperty (dnd->display, window, dnd->XdndActionDescription,
+ 0, 0x8000000L, False, XA_STRING, &type, &format,
+ &dcount, &remaining, &data);
+
+ if (type != XA_STRING || format != 8 || dcount == 0) {
+ if (data)
+ XFree (data);
+ *descriptions = malloc ((count + 1) * sizeof (char *));
+ dnd_warning ("XGetWindowProperty no property or wrong format for action descriptions");
+ for (i = 0; i < count; i++)
+ (*descriptions)[i] = "";
+ (*descriptions)[count] = 0;
+ } else {
+ int l;
+ l = (count + 1) * sizeof (char *);
+ *descriptions = malloc (l + dcount);
+ memcpy (*descriptions + l, data, dcount);
+ XFree (data);
+ data = (unsigned char *) *descriptions;
+ data += l;
+ l = 0;
+ for (i = 0, r = data;; r += l + 1, i++) {
+ l = strlen ((char *) r);
+ if (!l || i >= count)
+ break;
+ (*descriptions)[i] = (char *) r;
+ }
+ for (; i < count; i++) {
+ (*descriptions)[i] = "";
+ }
+ (*descriptions)[count] = 0;
+ }
+ return 0;
+}
+
+/* returns non-zero on cancel */
+int xdnd_choose_action_dialog (DndClass * dnd, Atom * actions, char **descriptions, Atom * result)
+{
+ if (!actions[0])
+ return 1;
+ if (!dnd->action_choose_dialog) { /* default to return the first action if no dialog set */
+ *result = actions[0];
+ return 0;
+ }
+ return (*dnd->action_choose_dialog) (dnd, descriptions, actions, result);
+}
+
+static void xdnd_send_event (DndClass * dnd, Window window, XEvent * xevent)
+{
+ dnd_debug4 ("xdnd_send_event(), window = %ld, l[0] = %ld, l[4] = %ld",
+ window, xevent->xclient.data.l[0], xevent->xclient.data.l[4]);
+ dnd_debug2 ("xdnd_send_event(), from widget widget %s", (char *) "<WIDGET>");
+ XSendEvent (dnd->display, window, 0, 0, xevent);
+}
+
+static void xdnd_send_enter (DndClass * dnd, Window window, Window from, Atom * typelist)
+{
+ XEvent xevent;
+ int n, i;
+ n = array_length (typelist);
+
+ memset (&xevent, 0, sizeof (xevent));
+
+ xevent.xany.type = ClientMessage;
+ xevent.xany.display = dnd->display;
+ xevent.xclient.window = window;
+ xevent.xclient.message_type = dnd->XdndEnter;
+ xevent.xclient.format = 32;
+
+ XDND_ENTER_SOURCE_WIN (&xevent) = from;
+ XDND_ENTER_THREE_TYPES_SET (&xevent, n > XDND_THREE);
+ XDND_ENTER_VERSION_SET (&xevent, dnd->version);
+ for (i = 0; i < n && i < XDND_THREE; i++)
+ XDND_ENTER_TYPE (&xevent, i) = typelist[i];
+ xdnd_send_event (dnd, window, &xevent);
+}
+
+static void xdnd_send_position (DndClass * dnd, Window window, Window from, Atom action, int x, int y, unsigned long time)
+{
+ XEvent xevent;
+
+ memset (&xevent, 0, sizeof (xevent));
+
+ xevent.xany.type = ClientMessage;
+ xevent.xany.display = dnd->display;
+ xevent.xclient.window = window;
+ xevent.xclient.message_type = dnd->XdndPosition;
+ xevent.xclient.format = 32;
+
+ XDND_POSITION_SOURCE_WIN (&xevent) = from;
+ XDND_POSITION_ROOT_SET (&xevent, x, y);
+ if (dnd_version_at_least (dnd->dragging_version, 1))
+ XDND_POSITION_TIME (&xevent) = time;
+ if (dnd_version_at_least (dnd->dragging_version, 2))
+ XDND_POSITION_ACTION (&xevent) = action;
+
+ xdnd_send_event (dnd, window, &xevent);
+}
+
+static void xdnd_send_status (DndClass * dnd, Window window, Window from, int will_accept, \
+ int want_position, int x, int y, int w, int h, Atom action)
+{
+ XEvent xevent;
+
+ memset (&xevent, 0, sizeof (xevent));
+
+ xevent.xany.type = ClientMessage;
+ xevent.xany.display = dnd->display;
+ xevent.xclient.window = window;
+ xevent.xclient.message_type = dnd->XdndStatus;
+ xevent.xclient.format = 32;
+
+ XDND_STATUS_TARGET_WIN (&xevent) = from;
+ XDND_STATUS_WILL_ACCEPT_SET (&xevent, will_accept);
+ if (will_accept)
+ XDND_STATUS_WANT_POSITION_SET (&xevent, want_position);
+ if (want_position)
+ XDND_STATUS_RECT_SET (&xevent, x, y, w, h);
+ if (dnd_version_at_least (dnd->dragging_version, 2))
+ if (will_accept)
+ XDND_STATUS_ACTION (&xevent) = action;
+
+ xdnd_send_event (dnd, window, &xevent);
+}
+
+static void xdnd_send_leave (DndClass * dnd, Window window, Window from)
+{
+ XEvent xevent;
+
+ memset (&xevent, 0, sizeof (xevent));
+
+ xevent.xany.type = ClientMessage;
+ xevent.xany.display = dnd->display;
+ xevent.xclient.window = window;
+ xevent.xclient.message_type = dnd->XdndLeave;
+ xevent.xclient.format = 32;
+
+ XDND_LEAVE_SOURCE_WIN (&xevent) = from;
+
+ xdnd_send_event (dnd, window, &xevent);
+}
+
+static void xdnd_send_drop (DndClass * dnd, Window window, Window from, unsigned long time)
+{
+ XEvent xevent;
+
+ memset (&xevent, 0, sizeof (xevent));
+
+ xevent.xany.type = ClientMessage;
+ xevent.xany.display = dnd->display;
+ xevent.xclient.window = window;
+ xevent.xclient.message_type = dnd->XdndDrop;
+ xevent.xclient.format = 32;
+
+ XDND_DROP_SOURCE_WIN (&xevent) = from;
+ if (dnd_version_at_least (dnd->dragging_version, 1))
+ XDND_DROP_TIME (&xevent) = time;
+
+ xdnd_send_event (dnd, window, &xevent);
+}
+
+/* error is not actually used, i think future versions of the protocol should return an error status
+ to the calling window with the XdndFinished client message */
+static void xdnd_send_finished (DndClass * dnd, Window window, Window from, int error)
+{
+ XEvent xevent;
+
+ memset (&xevent, 0, sizeof (xevent));
+
+ xevent.xany.type = ClientMessage;
+ xevent.xany.display = dnd->display;
+ xevent.xclient.window = window;
+ xevent.xclient.message_type = dnd->XdndFinished;
+ xevent.xclient.format = 32;
+
+ XDND_FINISHED_TARGET_WIN (&xevent) = from;
+
+ xdnd_send_event (dnd, window, &xevent);
+}
+
+/* returns non-zero on error - i.e. no selection owner set. Type is of course the mime type */
+static int xdnd_convert_selection (DndClass * dnd, Window window, Window requester, Atom type)
+{
+ if (!(window = XGetSelectionOwner (dnd->display, dnd->XdndSelection))) {
+ dnd_debug1 ("xdnd_convert_selection(): XGetSelectionOwner failed");
+ return 1;
+ }
+ XConvertSelection (dnd->display, dnd->XdndSelection, type,
+ dnd->Xdnd_NON_PROTOCOL_ATOM, requester, CurrentTime);
+ return 0;
+}
+
+/* returns non-zero on error */
+static int xdnd_set_selection_owner (DndClass * dnd, Window window, Atom type, Time time)
+{
+ if (!XSetSelectionOwner (dnd->display, dnd->XdndSelection, window, time)) {
+ dnd_debug1 ("xdnd_set_selection_owner(): XSetSelectionOwner failed");
+ return 1;
+ }
+ return 0;
+}
+
+static void xdnd_selection_send (DndClass * dnd, XSelectionRequestEvent * request, unsigned char *data, int length)
+{
+ XEvent xevent;
+ dnd_debug2 (" requestor = %ld", request->requestor);
+ dnd_debug2 (" property = %ld", request->property);
+ dnd_debug2 (" length = %d", length);
+ XChangeProperty (dnd->display, request->requestor, request->property,
+ request->target, 8, PropModeReplace, data, length);
+ xevent.xselection.type = SelectionNotify;
+ xevent.xselection.property = request->property;
+ xevent.xselection.display = request->display;
+ xevent.xselection.requestor = request->requestor;
+ xevent.xselection.selection = request->selection;
+ xevent.xselection.target = request->target;
+ xevent.xselection.time = request->time;
+ xdnd_send_event (dnd, request->requestor, &xevent);
+}
+
+#if 0
+/* respond to a notification that a primary selection has been sent */
+int xdnd_get_selection (DndClass * dnd, Window from, Atom property, Window insert)
+{
+ long read;
+ int error = 0;
+ unsigned long remaining;
+ if (!property)
+ return 1;
+ read = 0;
+ do {
+ unsigned char *s;
+ Atom actual;
+ int format;
+ unsigned long count;
+ if (XGetWindowProperty (dnd->display, insert, property, read / 4, 65536, 1,
+ AnyPropertyType, &actual, &format,
+ &count, &remaining,
+ &s) != Success) {
+ XFree (s);
+ return 1;
+ }
+ read += count;
+ if (dnd->widget_insert_drop && !error)
+ error = (*dnd->widget_insert_drop) (dnd, s, count, remaining, insert, from, actual);
+ XFree (s);
+ } while (remaining);
+ return error;
+}
+#endif
+
+static int paste_prop_internal (DndClass * dnd, Window from, Window insert, unsigned long prop, int delete_prop)
+{
+ long nread = 0;
+ unsigned long nitems;
+ unsigned long bytes_after;
+ int error = 0;
+ do {
+ Atom actual_type;
+ int actual_fmt;
+ unsigned char *s = 0;
+ if (XGetWindowProperty (dnd->display, insert, prop,
+ nread / 4, 65536, delete_prop,
+ AnyPropertyType, &actual_type, &actual_fmt,
+ &nitems, &bytes_after, &s) != Success) {
+ XFree (s);
+ return 1;
+ }
+ nread += nitems;
+ if (dnd->widget_insert_drop && !error)
+ error = (*dnd->widget_insert_drop) (dnd, s, nitems, bytes_after, insert, from, actual_fmt);
+ XFree (s);
+ } while (bytes_after);
+ if (!nread)
+ return 1;
+ return 0;
+}
+
+/*
+ * Respond to a notification that a primary selection has been sent (supports INCR)
+ */
+static int xdnd_get_selection (DndClass * dnd, Window from, Atom prop, Window insert)
+{
+ struct timeval tv, tv_start;
+ unsigned long bytes_after;
+ Atom actual_type;
+ int actual_fmt;
+ unsigned long nitems;
+ unsigned char *s = 0;
+ if (prop == None)
+ return 1;
+ if (XGetWindowProperty
+ (dnd->display, insert, prop, 0, 8, False, AnyPropertyType, &actual_type, &actual_fmt,
+ &nitems, &bytes_after, &s) != Success) {
+ XFree (s);
+ return 1;
+ }
+ XFree (s);
+ if (actual_type != XInternAtom (dnd->display, "INCR", False))
+ return paste_prop_internal (dnd, from, insert, prop, True);
+ XDeleteProperty (dnd->display, insert, prop);
+ gettimeofday (&tv_start, 0);
+ for (;;) {
+ long t;
+ fd_set r;
+ XEvent xe;
+ if (XCheckMaskEvent (dnd->display, PropertyChangeMask, &xe)) {
+ if (xe.type == PropertyNotify && xe.xproperty.state == PropertyNewValue) {
+/* time between arrivals of data */
+ gettimeofday (&tv_start, 0);
+ if (paste_prop_internal (dnd, from, insert, prop, True))
+ break;
+ }
+ } else {
+ tv.tv_sec = 0;
+ tv.tv_usec = 10000;
+ FD_ZERO (&r);
+ FD_SET (ConnectionNumber (dnd->display), &r);
+ select (ConnectionNumber (dnd->display) + 1, &r, 0, 0, &tv);
+ if (FD_ISSET (ConnectionNumber (dnd->display), &r))
+ continue;
+ }
+ gettimeofday (&tv, 0);
+ t = (tv.tv_sec - tv_start.tv_sec) * 1000000L + (tv.tv_usec - tv_start.tv_usec);
+/* no data for five seconds, so quit */
+ if (t > 5000000L)
+ return 1;
+ }
+ return 0;
+}
+
+
+int outside_rectangle (int x, int y, XRectangle * r)
+{
+ return (x < r->x || y < r->y || x >= r->x + r->width || y >= r->y + r->height);
+}
+
+/* avoids linking with the maths library */
+static float xdnd_sqrt (float x)
+{
+ float last_ans, ans = 2, a;
+ if (x <= 0.0)
+ return 0.0;
+ do {
+ last_ans = ans;
+ ans = (ans + x / ans) / 2;
+ a = (ans - last_ans) / ans;
+ if (a < 0.0)
+ a = (-a);
+ } while (a > 0.001);
+ return ans;
+}
+
+#define print_marks print_win_marks(from,__FILE__,__LINE__);
+
+/* returns action on success, 0 otherwise */
+Atom xdnd_drag (DndClass * dnd, Window from, Atom action, Atom * typelist)
+{
+ XEvent xevent, xevent_temp;
+ Window over_window = 0, last_window = 0;
+#if XDND_VERSION >= 3
+ Window last_dropper_toplevel = 0;
+ int internal_dropable = 1;
+#endif
+ int n;
+ DndCursor *cursor;
+ float x_mouse, y_mouse;
+ int result = 0, dnd_aware;
+
+ if (!typelist)
+ dnd_warning ("xdnd_drag() called with typelist = 0");
+
+/* first wait until the mouse moves more than five pixels */
+ do {
+ XNextEvent (dnd->display, &xevent);
+ if (xevent.type == ButtonRelease) {
+ dnd_debug1 ("button release - no motion");
+ XSendEvent (dnd->display, xevent.xany.window, 0, ButtonReleaseMask, &xevent);
+ return 0;
+ }
+ } while (xevent.type != MotionNotify);
+
+ x_mouse = (float) xevent.xmotion.x_root;
+ y_mouse = (float) xevent.xmotion.y_root;
+
+ if (!dnd->drag_threshold)
+ dnd->drag_threshold = 4.0;
+ for (;;) {
+ XNextEvent (dnd->display, &xevent);
+ if (xevent.type == MotionNotify)
+ if (xdnd_sqrt ((x_mouse - xevent.xmotion.x_root) * (x_mouse - xevent.xmotion.x_root) +
+ (y_mouse - xevent.xmotion.y_root) * (y_mouse - xevent.xmotion.y_root)) > dnd->drag_threshold)
+ break;
+ if (xevent.type == ButtonRelease) {
+ XSendEvent (dnd->display, xevent.xany.window, 0, ButtonReleaseMask, &xevent);
+ return 0;
+ }
+ }
+
+ dnd_debug1 ("moved 5 pixels - going to drag");
+
+ n = array_length (typelist);
+ if (n > XDND_THREE)
+ xdnd_set_type_list (dnd, from, typelist);
+
+ xdnd_reset (dnd);
+
+ dnd->stage = XDND_DRAG_STAGE_DRAGGING;
+
+ for (cursor = &dnd->cursors[0]; cursor->width; cursor++)
+ if (cursor->action == action)
+ break;
+ if (!cursor->width)
+ cursor = &dnd->cursors[0];
+
+/* the mouse has been dragged a little, so this is a drag proper */
+ if (XGrabPointer (dnd->display, dnd->root_window, False,
+ ButtonMotionMask | PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
+ GrabModeAsync, GrabModeAsync, None,
+ cursor->cursor, CurrentTime) != GrabSuccess)
+ dnd_debug1 ("Unable to grab pointer");
+
+
+ while (xevent.xany.type != ButtonRelease) {
+ XAllowEvents (dnd->display, SyncPointer, CurrentTime);
+ XNextEvent (dnd->display, &xevent);
+ switch (xevent.type) {
+ case Expose:
+ if (dnd->handle_expose_events)
+ (*dnd->handle_expose_events) (dnd, &xevent);
+ break;
+ case EnterNotify:
+/* this event is not actually reported, so we find out by ourselves from motion events */
+ break;
+ case LeaveNotify:
+/* this event is not actually reported, so we find out by ourselves from motion events */
+ break;
+ case ButtonRelease:
+/* done, but must send a leave event */
+ dnd_debug1 ("ButtonRelease - exiting event loop");
+ break;
+ case MotionNotify:
+ dnd_aware = 0;
+ dnd->dropper_toplevel = 0;
+ memcpy (&xevent_temp, &xevent, sizeof (xevent));
+ xevent.xmotion.subwindow = xevent.xmotion.window;
+ {
+ Window root_return, child_return;
+ int x_temp, y_temp;
+ unsigned int mask_return;
+ while (XQueryPointer (dnd->display, xevent.xmotion.subwindow, &root_return, &child_return,
+ &x_temp, &y_temp, &xevent.xmotion.x,
+ &xevent.xmotion.y, &mask_return)) {
+#if XDND_VERSION >= 3
+ if (!dnd_aware) {
+ if ((dnd_aware = xdnd_is_dnd_aware (dnd, xevent.xmotion.subwindow, &dnd->dragging_version, typelist))) {
+ dnd->dropper_toplevel = xevent.xmotion.subwindow;
+ xevent.xmotion.x_root = x_temp;
+ xevent.xmotion.y_root = y_temp;
+ }
+ }
+#else
+ xevent.xmotion.x_root = x_temp;
+ xevent.xmotion.y_root = y_temp;
+#endif
+ if (!child_return)
+ goto found_descendent;
+ xevent.xmotion.subwindow = child_return;
+ }
+ break;
+ }
+ found_descendent:
+
+/* last_window is just for debug purposes */
+ if (last_window != xevent.xmotion.subwindow) {
+ dnd_debug2 ("window crossing to %ld", xevent.xmotion.subwindow);
+ dnd_debug2 (" current window is %ld", over_window);
+ dnd_debug3 (" last_window = %ld, xmotion.subwindow = %ld", last_window, xevent.xmotion.subwindow);
+#if XDND_VERSION >= 3
+ dnd_debug3 (" dropper_toplevel = %ld, last_dropper_toplevel.subwindow = %ld", dnd->dropper_toplevel, last_dropper_toplevel);
+#endif
+ dnd_debug3 (" dnd_aware = %d, dnd->options & XDND_OPTION_NO_HYSTERESIS = %ld", dnd_aware, (long) dnd->options & XDND_OPTION_NO_HYSTERESIS);
+ }
+
+#if XDND_VERSION < 3
+/* is the new window dnd aware? if not stay in the old window */
+ if (over_window != xevent.xmotion.subwindow &&
+ last_window != xevent.xmotion.subwindow &&
+ (
+ (dnd_aware = xdnd_is_dnd_aware (dnd, xevent.xmotion.subwindow, &dnd->dragging_version, typelist))
+ ||
+ (dnd->options & XDND_OPTION_NO_HYSTERESIS)
+ ))
+#else
+ internal_dropable = 1;
+ if (dnd->widget_exists && (*dnd->widget_exists) (dnd, xevent.xmotion.subwindow))
+ if (!xdnd_is_dnd_aware (dnd, xevent.xmotion.subwindow, &dnd->dragging_version, typelist))
+ internal_dropable = 0;
+ dnd_debug3 ("dnd->dropper_toplevel = %ld, last_dropper_toplevel = %ld\n", dnd->dropper_toplevel, last_dropper_toplevel);
+ if ((dnd->dropper_toplevel != last_dropper_toplevel ||
+ last_window != xevent.xmotion.subwindow) && internal_dropable &&
+ (
+ (dnd_aware)
+ ||
+ (dnd->options & XDND_OPTION_NO_HYSTERESIS)
+ ))
+#endif
+ {
+/* leaving window we were over */
+ if (over_window) {
+ if (dnd->stage == XDND_DRAG_STAGE_ENTERED) {
+ dnd_debug1 ("got leave at right stage");
+ dnd->stage = XDND_DRAG_STAGE_DRAGGING;
+ if (dnd->internal_drag) {
+ dnd_debug1 (" our own widget");
+ if (dnd->widget_apply_leave)
+ (*dnd->widget_apply_leave) (dnd, over_window);
+ } else {
+ dnd_debug1 (" not our widget - sending XdndLeave");
+#if XDND_VERSION < 3
+ xdnd_send_leave (dnd, over_window, from);
+#else
+ if (dnd->dropper_toplevel != last_dropper_toplevel) {
+ xdnd_send_leave (dnd, last_dropper_toplevel, from);
+ } else {
+ dnd_debug1 (" not sending leave --> dnd->dropper_toplevel == last_dropper_toplevel");
+ }
+#endif
+ }
+ dnd->internal_drag = 0;
+ dnd->dropper_window = 0;
+ dnd->ready_to_drop = 0;
+ } else {
+ dnd_debug1 ("got leave at wrong stage - ignoring");
+ }
+ }
+/* entering window we are currently over */
+ over_window = xevent.xmotion.subwindow;
+ if (dnd_aware) {
+ dnd_debug1 (" is dnd aware");
+ dnd->stage = XDND_DRAG_STAGE_ENTERED;
+ if (dnd->widget_exists && (*dnd->widget_exists) (dnd, over_window))
+ dnd->internal_drag = 1;
+ if (dnd->internal_drag) {
+ dnd_debug1 (" our own widget");
+ } else {
+ dnd_debug2 (" not our widget - sending XdndEnter to %ld", over_window);
+#if XDND_VERSION < 3
+ xdnd_send_enter (dnd, over_window, from, typelist);
+#else
+ if (dnd->dropper_toplevel != last_dropper_toplevel)
+ xdnd_send_enter (dnd, dnd->dropper_toplevel, from, typelist);
+#endif
+ }
+ dnd->want_position = 1;
+ dnd->ready_to_drop = 0;
+ dnd->rectangle.width = dnd->rectangle.height = 0;
+ dnd->dropper_window = over_window;
+/* we want an additional motion event in case the pointer enters and then stops */
+ XSendEvent (dnd->display, from, 0, ButtonMotionMask, &xevent_temp);
+ XSync (dnd->display, 0);
+ }
+#if XDND_VERSION >= 3
+ last_dropper_toplevel = dnd->dropper_toplevel;
+#endif
+/* we are now officially in a new window */
+ } else {
+/* got here, so we are just moving `inside' the same window */
+ if (dnd->stage == XDND_DRAG_STAGE_ENTERED) {
+ dnd->supported_action = dnd->XdndActionCopy;
+ dnd_debug1 ("got motion at right stage");
+ dnd->x = xevent.xmotion.x_root;
+ dnd->y = xevent.xmotion.y_root;
+ if (dnd->want_position || outside_rectangle (dnd->x, dnd->y, &dnd->rectangle)) {
+ dnd_debug1 (" want position and outside rectangle");
+ if (dnd->internal_drag) {
+ dnd_debug1 (" our own widget");
+ dnd->ready_to_drop = (*dnd->widget_apply_position) (dnd, over_window, from,
+ action, dnd->x, dnd->y, xevent.xmotion.time, typelist,
+ &dnd->want_position, &dnd->supported_action, &dnd->desired_type, &dnd->rectangle);
+ /* if not ready, keep sending positions, this check is repeated below for XdndStatus from external widgets */
+ if (!dnd->ready_to_drop) {
+ dnd->want_position = 1;
+ dnd->rectangle.width = dnd->rectangle.height = 0;
+ }
+ dnd_debug2 (" return action=%ld", dnd->supported_action);
+ } else {
+#if XDND_VERSION < 3
+ dnd_debug3 (" not our own widget - sending XdndPosition to %ld, action %ld", over_window, action);
+ xdnd_send_position (dnd, over_window, from, action, dnd->x, dnd->y, xevent.xmotion.time);
+#else
+ dnd_debug3 (" not our own widget - sending XdndPosition to %ld, action %ld", dnd->dropper_toplevel, action);
+ xdnd_send_position (dnd, dnd->dropper_toplevel, from, action, dnd->x, dnd->y, xevent.xmotion.time);
+#endif
+ }
+ } else if (dnd->want_position) {
+ dnd_debug1 (" inside rectangle");
+ } else {
+ dnd_debug1 (" doesn't want position");
+ }
+ }
+ }
+ last_window = xevent.xmotion.subwindow;
+ break;
+ case ClientMessage:
+ dnd_debug1 ("ClientMessage recieved");
+ if (xevent.xclient.message_type == dnd->XdndStatus && !dnd->internal_drag) {
+ dnd_debug1 (" XdndStatus recieved");
+ if (dnd->stage == XDND_DRAG_STAGE_ENTERED
+#if XDND_VERSION < 3
+ && XDND_STATUS_TARGET_WIN (&xevent) == dnd->dropper_window
+#endif
+ ) {
+ dnd_debug1 (" XdndStatus stage correct, dropper window correct");
+ dnd->want_position = XDND_STATUS_WANT_POSITION (&xevent);
+ dnd->ready_to_drop = XDND_STATUS_WILL_ACCEPT (&xevent);
+ dnd->rectangle.x = XDND_STATUS_RECT_X (&xevent);
+ dnd->rectangle.y = XDND_STATUS_RECT_Y (&xevent);
+ dnd->rectangle.width = XDND_STATUS_RECT_WIDTH (&xevent);
+ dnd->rectangle.height = XDND_STATUS_RECT_HEIGHT (&xevent);
+ dnd->supported_action = dnd->XdndActionCopy;
+ if (dnd_version_at_least (dnd->dragging_version, 2))
+ dnd->supported_action = XDND_STATUS_ACTION (&xevent);
+ dnd_debug3 (" return action=%ld, ready=%d", dnd->supported_action, dnd->ready_to_drop);
+ /* if not ready, keep sending positions, this check is repeated above for internal widgets */
+ if (!dnd->ready_to_drop) {
+ dnd->want_position = 1;
+ dnd->rectangle.width = dnd->rectangle.height = 0;
+ }
+ dnd_debug3 (" rectangle = (x=%d, y=%d, ", dnd->rectangle.x, dnd->rectangle.y);
+ dnd_debug4 ("w=%d, h=%d), want_position=%d\n", dnd->rectangle.width, dnd->rectangle.height, dnd->want_position);
+ }
+#if XDND_VERSION < 3
+ else if (XDND_STATUS_TARGET_WIN (&xevent) != dnd->dropper_window) {
+ dnd_debug3 (" XdndStatus XDND_STATUS_TARGET_WIN (&xevent) = %ld, dnd->dropper_window = %ld", XDND_STATUS_TARGET_WIN (&xevent), dnd->dropper_window);
+ }
+#endif
+ else {
+ dnd_debug2 (" XdndStatus stage incorrect dnd->stage = %d", dnd->stage);
+ }
+ }
+ break;
+ case SelectionRequest:{
+/* the target widget MAY request data, so wait for SelectionRequest */
+ int length = 0;
+ unsigned char *data = 0;
+ dnd_debug1 ("SelectionRequest - getting widget data");
+
+ (*dnd->widget_get_data) (dnd, from, &data, &length, xevent.xselectionrequest.target);
+ if (data) {
+ dnd_debug1 (" sending selection");
+ xdnd_selection_send (dnd, &xevent.xselectionrequest, data, length);
+ xdnd_xfree (data);
+ }
+ }
+ break;
+ }
+ }
+
+ if (dnd->ready_to_drop) {
+ Time time;
+ dnd_debug1 ("ready_to_drop - sending XdndDrop");
+ time = xevent.xbutton.time;
+ if (dnd->internal_drag) {
+/* we are dealing with our own widget, no need to send drop events, just put the data straight */
+ int length = 0;
+ unsigned char *data = 0;
+ if (dnd->widget_insert_drop) {
+ (*dnd->widget_get_data) (dnd, from, &data, &length, dnd->desired_type);
+ if (data) {
+ if (!(*dnd->widget_insert_drop) (dnd, data, length, 0, dnd->dropper_window, from, dnd->desired_type)) {
+ result = dnd->supported_action; /* success - so return action to caller */
+ dnd_debug1 (" inserted data into widget - success");
+ } else {
+ dnd_debug1 (" inserted data into widget - failed");
+ }
+ xdnd_xfree (data);
+ } else {
+ dnd_debug1 (" got data from widget, but data is null");
+ }
+ }
+ } else {
+ xdnd_set_selection_owner (dnd, from, dnd->desired_type, time);
+#if XDND_VERSION < 3
+ xdnd_send_drop (dnd, dnd->dropper_window, from, time);
+#else
+ xdnd_send_drop (dnd, dnd->dropper_toplevel, from, time);
+#endif
+ }
+ if (!dnd->internal_drag)
+ for (;;) {
+ XAllowEvents (dnd->display, SyncPointer, CurrentTime);
+ XNextEvent (dnd->display, &xevent);
+ if (xevent.type == ClientMessage && xevent.xclient.message_type == dnd->XdndFinished) {
+ dnd_debug1 ("XdndFinished");
+#if XDND_VERSION < 3
+ if (XDND_FINISHED_TARGET_WIN (&xevent) == dnd->dropper_window) {
+#endif
+ dnd_debug2 (" source correct - exiting event loop, action=%ld", dnd->supported_action);
+ result = dnd->supported_action; /* success - so return action to caller */
+ break;
+#if XDND_VERSION < 3
+ }
+#endif
+ } else if (xevent.type == Expose) {
+ if (dnd->handle_expose_events)
+ (*dnd->handle_expose_events) (dnd, &xevent);
+ } else if (xevent.type == MotionNotify) {
+ if (xevent.xmotion.time > time + (dnd->time_out ? dnd->time_out * 1000 : 10000)) { /* allow a ten second timeout as default */
+ dnd_debug1 ("timeout - exiting event loop");
+ break;
+ }
+ } else if (xevent.type == SelectionRequest && xevent.xselectionrequest.selection == dnd->XdndSelection) {
+/* the target widget is going to request data, so check for SelectionRequest events */
+ int length = 0;
+ unsigned char *data = 0;
+
+ dnd_debug1 ("SelectionRequest - getting widget data");
+ (*dnd->widget_get_data) (dnd, from, &data, &length, xevent.xselectionrequest.target);
+ if (data) {
+ dnd_debug1 (" sending selection");
+ xdnd_selection_send (dnd, &xevent.xselectionrequest, data, length);
+ xdnd_xfree (data);
+ }
+/* don't wait for a XdndFinished event */
+ if (!dnd_version_at_least (dnd->dragging_version, 2))
+ break;
+ }
+ }
+ } else {
+ dnd_debug1 ("not ready_to_drop - ungrabbing pointer");
+ }
+ XUngrabPointer (dnd->display, CurrentTime);
+ xdnd_reset (dnd);
+ return result;
+}
+
+/* returns non-zero if event is handled */
+int xdnd_handle_drop_events (DndClass * dnd, XEvent * xevent)
+{
+ int result = 0;
+ if (xevent->type == SelectionNotify) {
+ dnd_debug1 ("got SelectionNotify");
+ if (xevent->xselection.property == dnd->Xdnd_NON_PROTOCOL_ATOM && dnd->stage == XDND_DROP_STAGE_CONVERTING) {
+ int error;
+ dnd_debug1 (" property is Xdnd_NON_PROTOCOL_ATOM - getting selection");
+ error = xdnd_get_selection (dnd, dnd->dragger_window, xevent->xselection.property, xevent->xany.window);
+/* error is not actually used, i think future versions of the protocol maybe should return
+ an error status to the calling window with the XdndFinished client message */
+ if (dnd_version_at_least (dnd->dragging_version, 2)) {
+#if XDND_VERSION >= 3
+ xdnd_send_finished (dnd, dnd->dragger_window, dnd->dropper_toplevel, error);
+#else
+ xdnd_send_finished (dnd, dnd->dragger_window, dnd->dropper_window, error);
+#endif
+ dnd_debug1 (" sending finished");
+ }
+ xdnd_xfree (dnd->dragger_typelist);
+ xdnd_reset (dnd);
+ dnd->stage = XDND_DROP_STAGE_IDLE;
+ result = 1;
+ } else {
+ dnd_debug1 (" property is not Xdnd_NON_PROTOCOL_ATOM - ignoring");
+ }
+ } else if (xevent->type == ClientMessage) {
+ dnd_debug2 ("got ClientMessage to xevent->xany.window = %ld", xevent->xany.window);
+ if (xevent->xclient.message_type == dnd->XdndEnter) {
+ dnd_debug2 (" message_type is XdndEnter, version = %ld", XDND_ENTER_VERSION (xevent));
+#if XDND_VERSION >= 3
+ if (XDND_ENTER_VERSION (xevent) < 3)
+ return 0;
+#endif
+ xdnd_reset (dnd);
+ dnd->dragger_window = XDND_ENTER_SOURCE_WIN (xevent);
+#if XDND_VERSION >= 3
+ dnd->dropper_toplevel = xevent->xany.window;
+ dnd->dropper_window = 0; /* enter goes to the top level window only,
+ so we don't really know what the
+ sub window is yet */
+#else
+ dnd->dropper_window = xevent->xany.window;
+#endif
+ xdnd_xfree (dnd->dragger_typelist);
+ if (XDND_ENTER_THREE_TYPES (xevent)) {
+ dnd_debug1 (" three types only");
+ xdnd_get_three_types (dnd, xevent, &dnd->dragger_typelist);
+ } else {
+ dnd_debug1 (" more than three types - getting list");
+ xdnd_get_type_list (dnd, dnd->dragger_window, &dnd->dragger_typelist);
+ }
+ if (dnd->dragger_typelist)
+ dnd->stage = XDND_DROP_STAGE_ENTERED;
+ else
+ dnd_debug1 (" typelist returned as zero!");
+ dnd->dragging_version = XDND_ENTER_VERSION (xevent);
+ result = 1;
+ } else if (xevent->xclient.message_type == dnd->XdndLeave) {
+#if XDND_VERSION >= 3
+ if (xevent->xany.window == dnd->dropper_toplevel && dnd->dropper_window)
+ xevent->xany.window = dnd->dropper_window;
+#endif
+ dnd_debug1 (" message_type is XdndLeave");
+ if (dnd->dragger_window == XDND_LEAVE_SOURCE_WIN (xevent) && dnd->stage == XDND_DROP_STAGE_ENTERED) {
+ dnd_debug1 (" leaving");
+ if (dnd->widget_apply_leave)
+ (*dnd->widget_apply_leave) (dnd, xevent->xany.window);
+ dnd->stage = XDND_DROP_STAGE_IDLE;
+ xdnd_xfree (dnd->dragger_typelist);
+ result = 1;
+ dnd->dropper_toplevel = dnd->dropper_window = 0;
+ } else {
+ dnd_debug1 (" wrong stage or from wrong window");
+ }
+ } else if (xevent->xclient.message_type == dnd->XdndPosition) {
+ dnd_debug2 (" message_type is XdndPosition to %ld", xevent->xany.window);
+ if (dnd->dragger_window == XDND_POSITION_SOURCE_WIN (xevent) && dnd->stage == XDND_DROP_STAGE_ENTERED) {
+ int want_position;
+ Atom action;
+ XRectangle rectangle;
+ Window last_window;
+ last_window = dnd->dropper_window;
+#if XDND_VERSION >= 3
+/* version 3 gives us the top-level window only. WE have to find the child that the pointer is over: */
+ if (1 || xevent->xany.window != dnd->dropper_toplevel || !dnd->dropper_window) {
+ Window parent, child, new_child = 0;
+ dnd->dropper_toplevel = xevent->xany.window;
+ parent = dnd->root_window;
+ child = dnd->dropper_toplevel;
+ for (;;) {
+ int xd, yd;
+ new_child = 0;
+ if (!XTranslateCoordinates (dnd->display, parent, child,
+ XDND_POSITION_ROOT_X (xevent), XDND_POSITION_ROOT_Y (xevent),
+ &xd, &yd, &new_child))
+ break;
+ if (!new_child)
+ break;
+ child = new_child;
+ }
+ dnd->dropper_window = xevent->xany.window = child;
+ dnd_debug2 (" child window translates to %ld", dnd->dropper_window);
+ } else if (xevent->xany.window == dnd->dropper_toplevel && dnd->dropper_window) {
+ xevent->xany.window = dnd->dropper_window;
+ dnd_debug2 (" child window previously found: %ld", dnd->dropper_window);
+ }
+#endif
+ action = dnd->XdndActionCopy;
+ dnd->supported_action = dnd->XdndActionCopy;
+ dnd->x = XDND_POSITION_ROOT_X (xevent);
+ dnd->y = XDND_POSITION_ROOT_Y (xevent);
+ dnd->time = CurrentTime;
+ if (dnd_version_at_least (dnd->dragging_version, 1))
+ dnd->time = XDND_POSITION_TIME (xevent);
+ if (dnd_version_at_least (dnd->dragging_version, 1))
+ action = XDND_POSITION_ACTION (xevent);
+#if XDND_VERSION >= 3
+ if (last_window && last_window != xevent->xany.window)
+ if (dnd->widget_apply_leave)
+ (*dnd->widget_apply_leave) (dnd, last_window);
+#endif
+ dnd->will_accept = (*dnd->widget_apply_position) (dnd, xevent->xany.window, dnd->dragger_window,
+ action, dnd->x, dnd->y, dnd->time, dnd->dragger_typelist,
+ &want_position, &dnd->supported_action, &dnd->desired_type, &rectangle);
+ dnd_debug2 (" will accept = %d", dnd->will_accept);
+#if XDND_VERSION >= 3
+ dnd_debug2 (" sending status of %ld", dnd->dropper_toplevel);
+ xdnd_send_status (dnd, dnd->dragger_window, dnd->dropper_toplevel, dnd->will_accept,
+ want_position, rectangle.x, rectangle.y, rectangle.width, rectangle.height, dnd->supported_action);
+#else
+ dnd_debug2 (" sending status of %ld", xevent->xany.window);
+ xdnd_send_status (dnd, dnd->dragger_window, xevent->xany.window, dnd->will_accept,
+ want_position, rectangle.x, rectangle.y, rectangle.width, rectangle.height, dnd->supported_action);
+#endif
+ result = 1;
+ } else {
+ dnd_debug1 (" wrong stage or from wrong window");
+ }
+ } else if (xevent->xclient.message_type == dnd->XdndDrop) {
+#if XDND_VERSION >= 3
+ if (xevent->xany.window == dnd->dropper_toplevel && dnd->dropper_window)
+ xevent->xany.window = dnd->dropper_window;
+#endif
+ dnd_debug1 (" message_type is XdndDrop");
+ if (dnd->dragger_window == XDND_DROP_SOURCE_WIN (xevent) && dnd->stage == XDND_DROP_STAGE_ENTERED) {
+ dnd->time = CurrentTime;
+ if (dnd_version_at_least (dnd->dragging_version, 1))
+ dnd->time = XDND_DROP_TIME (xevent);
+ if (dnd->will_accept) {
+ dnd_debug1 (" will_accept is true - converting selectiong");
+ dnd_debug2 (" my window is %ld", dnd->dropper_window);
+ dnd_debug2 (" source window is %ld", dnd->dragger_window);
+ xdnd_convert_selection (dnd, dnd->dragger_window, dnd->dropper_window, dnd->desired_type);
+ dnd->stage = XDND_DROP_STAGE_CONVERTING;
+ } else {
+ dnd_debug1 (" will_accept is false - sending finished");
+ if (dnd_version_at_least (dnd->dragging_version, 2)) {
+#if XDND_VERSION >= 3
+ xdnd_send_finished (dnd, dnd->dragger_window, dnd->dropper_toplevel, 1);
+#else
+ xdnd_send_finished (dnd, dnd->dragger_window, xevent->xany.window, 1);
+#endif
+ }
+ xdnd_xfree (dnd->dragger_typelist);
+ xdnd_reset (dnd);
+ dnd->stage = XDND_DROP_STAGE_IDLE;
+ }
+ result = 1;
+ } else {
+ dnd_debug1 (" wrong stage or from wrong window");
+ }
+ }
+ }
+ return result;
+}
+
+/*
+ Following here is a sample implementation: Suppose we want a window
+ to recieve drops, but do not want to be concerned with setting up all
+ the DndClass methods. All we then do is call xdnd_get_drop() whenever a
+ ClientMessage is recieved. If the message has nothing to do with XDND,
+ xdnd_get_drop quickly returns 0. If it is a XdndEnter message, then
+ xdnd_get_drop enters its own XNextEvent loop and handles all XDND
+ protocol messages internally, returning the action requested.
+
+ You should pass a desired typelist and actionlist to xdnd_get_type.
+ These must be null terminated arrays of atoms, or a null pointer
+ if you would like any action or type to be accepted. If typelist
+ is null then the first type of the dragging widgets typelist will
+ be the one used. If actionlist is null, then only XdndActionCopy will
+ be accepted.
+
+ The result is stored in *data, length, type, x and y.
+ *data must be free'd.
+ */
+
+struct xdnd_get_drop_info {
+ unsigned char *drop_data;
+ int drop_data_length;
+ int x, y;
+ Atom return_type;
+ Atom return_action;
+ Atom *typelist;
+ Atom *actionlist;
+};
+
+static int widget_insert_drop (DndClass * dnd, unsigned char *data, int length, int remaining, Window into, Window from, Atom type)
+{
+ struct xdnd_get_drop_info *i;
+ i = (struct xdnd_get_drop_info *) dnd->user_hook1;
+ if (!i->drop_data) {
+ i->drop_data = malloc (length);
+ if (!i->drop_data)
+ return 1;
+ memcpy (i->drop_data, data, length);
+ i->drop_data_length = length;
+ } else {
+ unsigned char *t;
+ t = malloc (i->drop_data_length + length);
+ if (!t) {
+ free (i->drop_data);
+ i->drop_data = 0;
+ return 1;
+ }
+ memcpy (t, i->drop_data, i->drop_data_length);
+ memcpy (t + i->drop_data_length, data, length);
+ free (i->drop_data);
+ i->drop_data = t;
+ i->drop_data_length += length;
+ }
+ return 0;
+}
+
+static int widget_apply_position (DndClass * dnd, Window widgets_window, Window from,
+ Atom action, int x, int y, Time t, Atom * typelist,
+ int *want_position, Atom * supported_action_return, Atom * desired_type,
+ XRectangle * rectangle)
+{
+ int i, j;
+ struct xdnd_get_drop_info *info;
+ Atom *dropper_typelist, supported_type = 0;
+ Atom *supported_actions, supported_action = 0;
+
+ info = (struct xdnd_get_drop_info *) dnd->user_hook1;
+ dropper_typelist = info->typelist;
+ supported_actions = info->actionlist;
+
+ if (dropper_typelist) {
+/* find a correlation: */
+ for (j = 0; dropper_typelist[j]; j++) {
+ for (i = 0; typelist[i]; i++) {
+ if (typelist[i] == dropper_typelist[j]) {
+ supported_type = typelist[i];
+ break;
+ }
+ }
+ if (supported_type)
+ break;
+ }
+ } else {
+/* user did not specify, so return first type */
+ supported_type = typelist[0];
+ }
+/* not supported, so return false */
+ if (!supported_type)
+ return 0;
+
+ if (supported_actions) {
+ for (j = 0; supported_actions[j]; j++) {
+ if (action == supported_actions[j]) {
+ supported_action = action;
+ break;
+ }
+ }
+ } else {
+/* user did not specify */
+ if (action == dnd->XdndActionCopy)
+ supported_action = action;
+ }
+ if (!supported_action)
+ return 0;
+
+ *want_position = 1;
+ rectangle->x = rectangle->y = 0;
+ rectangle->width = rectangle->height = 0;
+
+ info->return_action = *supported_action_return = supported_action;
+ info->return_type = *desired_type = supported_type;
+ info->x = x;
+ info->y = y;
+
+ return 1;
+}
+
+Atom xdnd_get_drop (Display * display, XEvent * xevent, Atom * typelist, Atom * actionlist,
+ unsigned char **data, int *length, Atom * type, int *x, int *y)
+{
+ Atom action = 0;
+ static int initialised = 0;
+ static DndClass dnd;
+ if (!initialised) {
+ xdnd_init (&dnd, display);
+ initialised = 1;
+ }
+ if (xevent->type != ClientMessage || xevent->xclient.message_type != dnd.XdndEnter) {
+ return 0;
+ } else {
+ struct xdnd_get_drop_info i;
+
+/* setup user structure */
+ memset (&i, 0, sizeof (i));
+ i.actionlist = actionlist;
+ i.typelist = typelist;
+ dnd.user_hook1 = &i;
+
+/* setup methods */
+ dnd.widget_insert_drop = widget_insert_drop;
+ dnd.widget_apply_position = widget_apply_position;
+
+/* main loop */
+ for (;;) {
+ xdnd_handle_drop_events (&dnd, xevent);
+ if (dnd.stage == XDND_DROP_STAGE_IDLE)
+ break;
+ XNextEvent (dnd.display, xevent);
+ }
+
+/* return results */
+ if (i.drop_data) {
+ *length = i.drop_data_length;
+ *data = i.drop_data;
+ action = i.return_action;
+ *type = i.return_type;
+ *x = i.x;
+ *y = i.y;
+ }
+ }
+ return action;
+}
+
+
diff --git a/extern/xdnd/xdnd.h b/extern/xdnd/xdnd.h
new file mode 100644
index 00000000000..c903b51c8d0
--- /dev/null
+++ b/extern/xdnd/xdnd.h
@@ -0,0 +1,221 @@
+/* xdnd.c, xdnd.h - C program library for handling the Xdnd protocol
+ Copyright (C) 1996-2000 Paul Sheer
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307, USA.
+ */
+
+#ifndef _X_DND_H
+#define _X_DND_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* you can set this to either 2 (which support 0 and 1 as well) or 3 */
+/* #define XDND_VERSION 2 */
+#define XDND_VERSION 3
+
+
+/* XdndEnter */
+#define XDND_THREE 3
+#define XDND_ENTER_SOURCE_WIN(e) ((e)->xclient.data.l[0])
+#define XDND_ENTER_THREE_TYPES(e) (((e)->xclient.data.l[1] & 0x1UL) == 0)
+#define XDND_ENTER_THREE_TYPES_SET(e,b) (e)->xclient.data.l[1] = ((e)->xclient.data.l[1] & ~0x1UL) | (((b) == 0) ? 0 : 0x1UL)
+#define XDND_ENTER_VERSION(e) ((e)->xclient.data.l[1] >> 24)
+#define XDND_ENTER_VERSION_SET(e,v) (e)->xclient.data.l[1] = ((e)->xclient.data.l[1] & ~(0xFF << 24)) | ((v) << 24)
+#define XDND_ENTER_TYPE(e,i) ((e)->xclient.data.l[2 + i]) /* i => (0, 1, 2) */
+
+/* XdndPosition */
+#define XDND_POSITION_SOURCE_WIN(e) ((e)->xclient.data.l[0])
+#define XDND_POSITION_ROOT_X(e) ((e)->xclient.data.l[2] >> 16)
+#define XDND_POSITION_ROOT_Y(e) ((e)->xclient.data.l[2] & 0xFFFFUL)
+#define XDND_POSITION_ROOT_SET(e,x,y) (e)->xclient.data.l[2] = ((x) << 16) | ((y) & 0xFFFFUL)
+#define XDND_POSITION_TIME(e) ((e)->xclient.data.l[3])
+#define XDND_POSITION_ACTION(e) ((e)->xclient.data.l[4])
+
+/* XdndStatus */
+#define XDND_STATUS_TARGET_WIN(e) ((e)->xclient.data.l[0])
+#define XDND_STATUS_WILL_ACCEPT(e) ((e)->xclient.data.l[1] & 0x1L)
+#define XDND_STATUS_WILL_ACCEPT_SET(e,b) (e)->xclient.data.l[1] = ((e)->xclient.data.l[1] & ~0x1UL) | (((b) == 0) ? 0 : 0x1UL)
+#define XDND_STATUS_WANT_POSITION(e) ((e)->xclient.data.l[1] & 0x2UL)
+#define XDND_STATUS_WANT_POSITION_SET(e,b) (e)->xclient.data.l[1] = ((e)->xclient.data.l[1] & ~0x2UL) | (((b) == 0) ? 0 : 0x2UL)
+#define XDND_STATUS_RECT_X(e) ((e)->xclient.data.l[2] >> 16)
+#define XDND_STATUS_RECT_Y(e) ((e)->xclient.data.l[2] & 0xFFFFL)
+#define XDND_STATUS_RECT_WIDTH(e) ((e)->xclient.data.l[3] >> 16)
+#define XDND_STATUS_RECT_HEIGHT(e) ((e)->xclient.data.l[3] & 0xFFFFL)
+#define XDND_STATUS_RECT_SET(e,x,y,w,h) {(e)->xclient.data.l[2] = ((x) << 16) | ((y) & 0xFFFFUL); (e)->xclient.data.l[3] = ((w) << 16) | ((h) & 0xFFFFUL); }
+#define XDND_STATUS_ACTION(e) ((e)->xclient.data.l[4])
+
+/* XdndLeave */
+#define XDND_LEAVE_SOURCE_WIN(e) ((e)->xclient.data.l[0])
+
+/* XdndDrop */
+#define XDND_DROP_SOURCE_WIN(e) ((e)->xclient.data.l[0])
+#define XDND_DROP_TIME(e) ((e)->xclient.data.l[2])
+
+/* XdndFinished */
+#define XDND_FINISHED_TARGET_WIN(e) ((e)->xclient.data.l[0])
+
+struct _DndCursor {
+ int width, height;
+ int x, y;
+ unsigned char *image_data, *mask_data;
+ char *_action;
+ Pixmap image_pixmap, mask_pixmap;
+ Cursor cursor;
+ Atom action;
+};
+
+typedef struct _DndCursor DndCursor;
+typedef struct _DndClass DndClass;
+
+struct _DndClass {
+/* insert chars sequentionally into the target widget, type will be the same as `desired_type'
+ returned from widget_apply_position. This may be called several times in succession
+ with sequention blocks of data. Must return non-zero on failure */
+ int (*widget_insert_drop) (DndClass * dnd, unsigned char *data, int length, int remaining, Window into, Window from, Atom type);
+
+/* In response to DELETE requests : FIXME - not yet used */
+ int (*widget_delete_selection) (DndClass * dnd, Window window, Window from);
+
+/* returns 1 if widget exists, zero otherwise. If this method is not
+ set then the code assumes that no widgets have support for recieving drops.
+ In this case none of the widget methods need be set. */
+ int (*widget_exists) (DndClass * dnd, Window window);
+
+/* must update the widgets border to its default appearance */
+ void (*widget_apply_leave) (DndClass * dnd, Window widgets_window);
+
+/* must update the widgets border to give the appearance of being able to recieve a drop,
+ plus return all data to pointers. As per the protocol, if the widget cannot
+ perform the action specified by `action' then it should return either XdndActionPrivate
+ or XdndActionCopy into supported_action (leaving 0 supported_action unchanged is equivalent
+ to XdndActionCopy). Returns 1 if ready to ok drop */
+ int (*widget_apply_position) (DndClass * dnd, Window widgets_window, Window from,
+ Atom action, int x, int y, Time t, Atom * typelist,
+ int *want_position, Atom * supported_action, Atom * desired_type,
+ XRectangle * rectangle);
+
+/* returns drag data of the specified type. This will be one of `typelist' given to xdnd_drag */
+ void (*widget_get_data) (DndClass * dnd, Window window, unsigned char **data, int *length, Atom type);
+
+/* this is called from with the main event loop if an expose event is recieved and is optional */
+ void (*handle_expose_events) (DndClass * dnd, XEvent * xevent);
+
+/* creates a chooser dialog if the action is XdndActionAsk. Returns non-zero on cancel */
+ int (*action_choose_dialog) (DndClass * dnd, char **descriptions, Atom * actions, Atom * result);
+
+#if 0 /* implemented internally */
+/* returns a widget that is dnd aware within a parent widget that lies under the point x, y */
+ Window (*widget_get_child_widget) (DndClass * dnd, Window parent, int x, int y);
+#endif
+
+ void *pad1[8];
+
+ DndCursor *cursors;
+
+ Display *display;
+
+ Atom XdndAware;
+ Atom XdndSelection;
+ Atom XdndEnter;
+ Atom XdndLeave;
+ Atom XdndPosition;
+ Atom XdndDrop;
+ Atom XdndFinished;
+ Atom XdndStatus;
+ Atom XdndActionCopy;
+ Atom XdndActionMove;
+ Atom XdndActionLink;
+ Atom XdndActionAsk;
+ Atom XdndActionPrivate;
+ Atom XdndTypeList;
+ Atom XdndActionList;
+ Atom XdndActionDescription;
+
+ Atom Xdnd_NON_PROTOCOL_ATOM;
+ Atom version;
+
+ Atom pad2[16];
+
+ Window root_window;
+
+#define XDND_DROP_STAGE_IDLE 0
+#define XDND_DRAG_STAGE_DRAGGING 1
+#define XDND_DRAG_STAGE_ENTERED 2
+#define XDND_DROP_STAGE_CONVERTING 3
+#define XDND_DROP_STAGE_ENTERED 4
+ int stage;
+ int dragging_version;
+ int internal_drag;
+ int want_position;
+ int ready_to_drop;
+ int will_accept;
+ XRectangle rectangle;
+ Window dropper_window, dragger_window;
+ Atom *dragger_typelist;
+ Atom desired_type;
+ Atom supported_action;
+ Time time;
+/* drop position from last XdndPosition */
+ int x, y;
+ int pad3[16];
+
+/* move euclidian pixels before considering this to be an actual drag */
+ float drag_threshold;
+
+/* block for only this many seconds on not receiving a XdndFinished from target, default : 10 */
+ int time_out;
+
+#define XDND_OPTION_NO_HYSTERESIS (1<<0)
+ int options;
+
+/* user hooks */
+ void *user_hook1;
+ void *user_hook2;
+ void *user_hook3;
+ Window dropper_toplevel;
+ void *pad4[15];
+};
+
+
+void xdnd_init (DndClass * dnd, Display * display);
+void xdnd_shut (DndClass * dnd);
+/* for nested widgets where parent and child receive drops of different
+types; then always pass typelist as null */
+void xdnd_set_dnd_aware (DndClass * dnd, Window window, Atom * typelist);
+int xdnd_is_dnd_aware (DndClass * dnd, Window window, int *version, Atom * typelist);
+void xdnd_set_type_list (DndClass * dnd, Window window, Atom * typelist);
+void xdnd_set_actions (DndClass * dnd, Window window, Atom * actions, char **descriptions);
+int xdnd_get_actions (DndClass * dnd, Window window, Atom ** actions, char ***descriptions);
+int xdnd_choose_action_dialog (DndClass * dnd, Atom * actions, char **descriptions, Atom * result);
+Atom xdnd_drag (DndClass * dnd, Window from, Atom action, Atom * typelist);
+
+/* Returns 1 if event is handled, This must be placed in the widget
+libraries main event loop and be called if the event type is
+ClientMessage or SelectionNotify */
+int xdnd_handle_drop_events (DndClass * dnd, XEvent * xevent);
+Atom xdnd_get_drop (Display * display, XEvent * xevent, Atom * typelist, Atom * actionlist,
+ unsigned char **data, int *length, Atom * type, int *x, int *y);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* !_X_DND_H */
+
+
diff --git a/intern/ghost/CMakeLists.txt b/intern/ghost/CMakeLists.txt
index 35b617e5452..3d65f4972c4 100644
--- a/intern/ghost/CMakeLists.txt
+++ b/intern/ghost/CMakeLists.txt
@@ -220,11 +220,17 @@ elseif(UNIX)
intern/GHOST_SystemX11.cpp
intern/GHOST_SystemPathsX11.cpp
intern/GHOST_WindowX11.cpp
+ intern/GHOST_DropTargetX11.cpp
intern/GHOST_DisplayManagerX11.h
intern/GHOST_SystemX11.h
intern/GHOST_SystemPathsX11.h
intern/GHOST_WindowX11.h
+ intern/GHOST_DropTargetX11.h
+ )
+
+ list(APPEND INC
+ ../../extern/xdnd
)
if(X11_XF86keysym_INCLUDE_PATH)
diff --git a/intern/ghost/SConscript b/intern/ghost/SConscript
index 68a0cbf7bdd..d83107717fc 100644
--- a/intern/ghost/SConscript
+++ b/intern/ghost/SConscript
@@ -42,6 +42,8 @@ elif window_system in ('linux', 'openbsd3', 'sunos5', 'freebsd7', 'freebsd8', 'f
# defs += ['PREFIX=\\"/usr/local/\\"'] # XXX, make an option
defs += ['WITH_X11_XINPUT'] # XXX, make an option
+ incs += ' #/extern/xdnd'
+
elif window_system in ('win32-vc', 'win32-mingw', 'cygwin', 'linuxcross', 'win64-vc'):
for f in pf:
try:
diff --git a/intern/ghost/intern/GHOST_DropTargetX11.cpp b/intern/ghost/intern/GHOST_DropTargetX11.cpp
new file mode 100644
index 00000000000..2239ac63d33
--- /dev/null
+++ b/intern/ghost/intern/GHOST_DropTargetX11.cpp
@@ -0,0 +1,310 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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 2
+ * 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2012 by the Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): Sergey Sharybin.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file ghost/intern/GHOST_DropTargetX11.cpp
+ * \ingroup GHOST
+ */
+
+#include "GHOST_DropTargetX11.h"
+#include "GHOST_Debug.h"
+
+#include <ctype.h>
+#include <assert.h>
+
+bool GHOST_DropTargetX11::m_xdndInitialized = false;
+DndClass GHOST_DropTargetX11::m_dndClass;
+Atom * GHOST_DropTargetX11::m_dndTypes = NULL;
+Atom * GHOST_DropTargetX11::m_dndActions = NULL;
+const char *GHOST_DropTargetX11::m_dndMimeTypes[] = {"url/url", "text/uri-list", "text/plain", "application/octet-stream"};
+int GHOST_DropTargetX11::m_refCounter = 0;
+
+#define dndTypeURLID 0
+#define dndTypeURIListID 1
+#define dndTypePlainTextID 2
+#define dndTypeOctetStreamID 3
+
+#define dndTypeURL m_dndTypes[dndTypeURLID]
+#define dndTypeURIList m_dndTypes[dndTypeURIListID]
+#define dndTypePlainText m_dndTypes[dndTypePlainTextID]
+#define dndTypeOctetStream m_dndTypes[dndTypeOctetStreamID]
+
+void GHOST_DropTargetX11::Initialize(void)
+{
+ Display *display = m_system->getXDisplay();
+ int dndTypesCount = sizeof(m_dndMimeTypes) / sizeof(char*);
+ int counter;
+
+ xdnd_init(&m_dndClass, display);
+
+ m_dndTypes = new Atom[dndTypesCount + 1];
+ XInternAtoms(display, (char**)m_dndMimeTypes, dndTypesCount, 0, m_dndTypes);
+ m_dndTypes[dndTypesCount] = 0;
+
+ m_dndActions = new Atom[8];
+ counter = 0;
+
+ m_dndActions[counter++] = m_dndClass.XdndActionCopy;
+ m_dndActions[counter++] = m_dndClass.XdndActionMove;
+
+#if 0 /* Not supported yet */
+ dndActions[counter++] = dnd->XdndActionLink;
+ dndActions[counter++] = dnd->XdndActionAsk;
+ dndActions[counter++] = dnd->XdndActionPrivate;
+ dndActions[counter++] = dnd->XdndActionList;
+ dndActions[counter++] = dnd->XdndActionDescription;
+#endif
+
+ m_dndActions[counter++] = 0;
+}
+
+void GHOST_DropTargetX11::Uninitialize(void)
+{
+ xdnd_shut(&m_dndClass);
+}
+
+GHOST_DropTargetX11::GHOST_DropTargetX11(GHOST_WindowX11 * window, GHOST_SystemX11 * system)
+:
+m_window(window),
+m_system(system)
+{
+ if (!m_xdndInitialized) {
+ Initialize();
+ m_xdndInitialized = true;
+ GHOST_PRINT("XDND initialized\n");
+ }
+
+ Window wnd = window->getXWindow();
+
+ xdnd_set_dnd_aware(&m_dndClass, wnd, 0);
+ xdnd_set_type_list(&m_dndClass, wnd, m_dndTypes);
+
+ m_draggedObjectType = GHOST_kDragnDropTypeUnknown;
+ m_refCounter++;
+}
+
+GHOST_DropTargetX11::~GHOST_DropTargetX11()
+{
+ m_refCounter--;
+ if (m_refCounter == 0) {
+ Uninitialize();
+ m_xdndInitialized = false;
+ GHOST_PRINT("XDND uninitialized\n");
+ }
+}
+
+/* based on a code from Saul Rennison
+ * http://stackoverflow.com/questions/2673207/c-c-url-decode-library */
+
+typedef enum DecodeState_e {
+ STATE_SEARCH = 0, ///< searching for an ampersand to convert
+ STATE_CONVERTING ///< convert the two proceeding characters from hex
+} DecodeState_e;
+
+void GHOST_DropTargetX11::UrlDecode(char *decodedOut, int bufferSize, const char *encodedIn)
+{
+ unsigned int i;
+ unsigned int len = strlen(encodedIn);
+ DecodeState_e state = STATE_SEARCH;
+ int j, asciiCharacter;
+ char tempNumBuf[3] = {0};
+ bool bothDigits = true;
+
+ memset(decodedOut, 0, bufferSize);
+
+ for (i = 0; i < len; ++i) {
+ switch (state) {
+ case STATE_SEARCH:
+ if (encodedIn[i] != '%') {
+ strncat(decodedOut, &encodedIn[i], 1);
+ assert(strlen(decodedOut) < bufferSize);
+ break;
+ }
+
+ // We are now converting
+ state = STATE_CONVERTING;
+ break;
+
+ case STATE_CONVERTING:
+ bothDigits = true;
+
+ // Create a buffer to hold the hex. For example, if %20, this
+ // buffer would hold 20 (in ASCII)
+ memset(tempNumBuf, 0, sizeof(tempNumBuf));
+
+ // Conversion complete (i.e. don't convert again next iter)
+ state = STATE_SEARCH;
+
+ strncpy(tempNumBuf, &encodedIn[i], 2);
+
+ // Ensure both characters are hexadecimal
+
+ for (j = 0; j < 2; ++j) {
+ if (!isxdigit(tempNumBuf[j]))
+ bothDigits = false;
+ }
+
+ if (!bothDigits)
+ break;
+
+ // Convert two hexadecimal characters into one character
+ sscanf(tempNumBuf, "%x", &asciiCharacter);
+
+ // Ensure we aren't going to overflow
+ assert(strlen(decodedOut) < bufferSize);
+
+ // Concatenate this character onto the output
+ strncat(decodedOut, (char*)&asciiCharacter, 1);
+
+ // Skip the next character
+ i++;
+ break;
+ }
+ }
+}
+
+char *GHOST_DropTargetX11::FileUrlDecode(char *fileUrl)
+{
+ if(!strncpy(fileUrl, "file://", 7) == 0) {
+ /* assume one character of encoded URL can be expanded to 4 chars max */
+ int decodedSize = 4 * strlen(fileUrl) + 1;
+ char *decodedPath = (char *)malloc(decodedSize);
+
+ UrlDecode(decodedPath, decodedSize, fileUrl + 7);
+
+ return decodedPath;
+ }
+
+ return NULL;
+}
+
+void *GHOST_DropTargetX11::getURIListGhostData(unsigned char *dropBuffer, int dropBufferSize)
+{
+ GHOST_TStringArray *strArray = NULL;
+ int totPaths = 0, curLength = 0;
+
+ /* count total number of file pathes in buffer */
+ for (int i = 0; i <= dropBufferSize; i++) {
+ if (dropBuffer[i] == 0 || dropBuffer[i] == '\n' || dropBuffer[i] == '\r') {
+ if (curLength) {
+ totPaths++;
+ curLength = 0;
+ }
+ }
+ else curLength++;
+ }
+
+ strArray = (GHOST_TStringArray*)malloc(sizeof(GHOST_TStringArray));
+ strArray->count = 0;
+ strArray->strings = (GHOST_TUns8**)malloc(totPaths*sizeof(GHOST_TUns8*));
+
+ curLength = 0;
+ for (int i = 0; i <= dropBufferSize; i++) {
+ if (dropBuffer[i] == 0 || dropBuffer[i] == '\n' || dropBuffer[i] == '\r') {
+ if (curLength) {
+ char *curPath = (char *)malloc(curLength + 1);
+ char *decodedPath;
+
+ strncpy(curPath, (char*)dropBuffer + i - curLength, curLength);
+ curPath[curLength] = 0;
+
+ decodedPath = FileUrlDecode(curPath);
+ if(decodedPath) {
+ strArray->strings[strArray->count] = (GHOST_TUns8*)decodedPath;
+ strArray->count++;
+ }
+
+ free(curPath);
+ curLength = 0;
+ }
+ }
+ else curLength++;
+ }
+
+ return strArray;
+}
+
+void *GHOST_DropTargetX11::getGhostData(Atom dropType, unsigned char *dropBuffer, int dropBufferSize)
+{
+ void *data = NULL;
+ unsigned char *tmpBuffer = (unsigned char *)malloc(dropBufferSize + 1);
+ bool needsFree = true;
+
+ /* ensure NULL-terminator */
+ memcpy(tmpBuffer, dropBuffer, dropBufferSize);
+ tmpBuffer[dropBufferSize] = 0;
+
+ if (dropType == dndTypeURIList) {
+ m_draggedObjectType = GHOST_kDragnDropTypeFilenames;
+ data = getURIListGhostData(tmpBuffer, dropBufferSize);
+ }
+ else if (dropType == dndTypeURL) {
+ /* need to be tested */
+ char *decodedPath = FileUrlDecode((char *)tmpBuffer);
+
+ if (decodedPath) {
+ m_draggedObjectType = GHOST_kDragnDropTypeString;
+ data = decodedPath;
+ }
+ }
+ else if (dropType == dndTypePlainText || dropType == dndTypeOctetStream) {
+ m_draggedObjectType = GHOST_kDragnDropTypeString;
+ data = tmpBuffer;
+ needsFree = false;
+ }
+ else {
+ m_draggedObjectType = GHOST_kDragnDropTypeUnknown;
+ }
+
+ if (needsFree)
+ free(tmpBuffer);
+
+ return data;
+}
+
+bool GHOST_DropTargetX11::GHOST_HandleClientMessage(XEvent *event)
+{
+ Atom dropType;
+ unsigned char *dropBuffer;
+ int dropBufferSize, dropX, dropY;
+
+ if (xdnd_get_drop(m_system->getXDisplay(), event, m_dndTypes, m_dndActions,
+ &dropBuffer, &dropBufferSize, &dropType, &dropX, &dropY))
+ {
+ void *data = getGhostData(dropType, dropBuffer, dropBufferSize);
+
+ if (data)
+ m_system->pushDragDropEvent(GHOST_kEventDraggingDropDone, m_draggedObjectType, m_window, dropX, dropY, data);
+
+ free(dropBuffer);
+
+ m_draggedObjectType = GHOST_kDragnDropTypeUnknown;
+
+ return true;
+ }
+
+ return false;
+}
diff --git a/intern/ghost/intern/GHOST_DropTargetX11.h b/intern/ghost/intern/GHOST_DropTargetX11.h
new file mode 100644
index 00000000000..2b08b7ef59c
--- /dev/null
+++ b/intern/ghost/intern/GHOST_DropTargetX11.h
@@ -0,0 +1,135 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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 2
+ * 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2012 by the Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): Sergey Sharybin.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file ghost/intern/GHOST_DropTargetWin32.h
+ * \ingroup GHOST
+ */
+
+#ifndef _GHOST_DROP_TARGET_X11_H_
+#define _GHOST_DROP_TARGET_X11_H_
+
+#include <GHOST_Types.h>
+#include "GHOST_WindowX11.h"
+#include "GHOST_SystemX11.h"
+
+#include "xdnd.h"
+
+class GHOST_DropTargetX11
+{
+public:
+ /**
+ * Constructor
+ *
+ * @param window The window to register as drop target.
+ * @param system The associated system.
+ */
+ GHOST_DropTargetX11(GHOST_WindowX11 * window, GHOST_SystemX11 * system);
+
+ /**
+ * Destructor
+ */
+ ~GHOST_DropTargetX11();
+
+ /**
+ * Handler of ClientMessage X11 event
+ */
+ bool GHOST_HandleClientMessage(XEvent *event);
+
+ /**
+ * Get data to pass in event.
+ * It checks the type and calls specific functions for each type.
+ * @param dropType - type of dropped entity.
+ * @param dropBuffer - buffer returned from source application
+ * @param dropBufferSize - size of returned buffer
+ * @return Pointer to data.
+ */
+ void *getGhostData(Atom dropType, unsigned char *dropBuffer, int dropBufferSize);
+
+private:
+ /* Internal helper functions */
+
+ /**
+ * Initiailize XDND and all related X atoms
+ */
+ void Initialize(void);
+
+ /**
+ * Uninitiailize XDND and all related X atoms
+ */
+ void Uninitialize(void);
+
+ /**
+ * Get data to be passed to event from text/uri-list mime type
+ * @param dropBuffer - buffer returned from source application
+ * @param dropBufferSize - size of dropped buffer
+ * @return pointer to newly created GHOST data
+ */
+ void * getURIListGhostData(unsigned char *dropBuffer, int dropBufferSize);
+
+ /**
+ * Decode URL (i.e. converts "file:///a%20b/test" to "file:///a b/test")
+ * @param decodedOut - buffer for decoded URL
+ * @param bufferSize - size of output buffer
+ * @param encodedIn - input encoded buffer to be decoded
+ */
+ void UrlDecode(char *decodedOut, int bufferSize, const char *encodedIn);
+
+ /**
+ * Fully decode file URL (i.e. converts "file:///a%20b/test" to "/a b/test")
+ * @param fileUrl - file path URL to be fully decoded
+ * @return decoded file path (resutl shold be free-d)
+ */
+ char *FileUrlDecode(char *fileUrl);
+
+ /* The associated GHOST_WindowWin32. */
+ GHOST_WindowX11 * m_window;
+ /* The System. */
+ GHOST_SystemX11 * m_system;
+
+ /* Data type of the dragged object */
+ GHOST_TDragnDropTypes m_draggedObjectType;
+
+ /* is dnd stuff initialzied */
+ static bool m_xdndInitialized;
+
+ /* class holding internal stiff of xdnd library */
+ static DndClass m_dndClass;
+
+ /* list of supported types to eb draggeg into */
+ static Atom * m_dndTypes;
+
+ /* list of supported dran'n'drop actions */
+ static Atom * m_dndActions;
+
+ /* List of supported MIME types to be dragged into */
+ static const char *m_dndMimeTypes[];
+
+ /* counter of references to global XDND structures */
+ static int m_refCounter;
+};
+
+#endif // _GHOST_DROP_TARGET_X11_H_
diff --git a/intern/ghost/intern/GHOST_SystemX11.cpp b/intern/ghost/intern/GHOST_SystemX11.cpp
index 22c16009591..7261770771a 100644
--- a/intern/ghost/intern/GHOST_SystemX11.cpp
+++ b/intern/ghost/intern/GHOST_SystemX11.cpp
@@ -42,6 +42,8 @@
#include "GHOST_EventButton.h"
#include "GHOST_EventWheel.h"
#include "GHOST_DisplayManagerX11.h"
+#include "GHOST_DropTargetX11.h"
+#include "GHOST_EventDragnDrop.h"
#ifdef WITH_INPUT_NDOF
#include "GHOST_NDOFManagerX11.h"
#endif
@@ -709,8 +711,12 @@ GHOST_SystemX11::processEvent(XEvent *xe)
}
}
} else {
- /* Unknown client message, ignore */
+ /* try to handle drag event (if there's no such events, GHOST_HandleClientMessage will return zero) */
+ if (window->getDropTarget()->GHOST_HandleClientMessage(xe) == false) {
+ /* Unknown client message, ignore */
+ }
}
+
break;
}
@@ -1478,3 +1484,17 @@ void GHOST_SystemX11::putClipboard(GHOST_TInt8 *buffer, bool selection) const
fprintf(stderr, "failed to own primary\n");
}
}
+
+GHOST_TSuccess GHOST_SystemX11::pushDragDropEvent(GHOST_TEventType eventType,
+ GHOST_TDragnDropTypes draggedObjectType,
+ GHOST_IWindow* window,
+ int mouseX, int mouseY,
+ void* data)
+{
+ GHOST_SystemX11* system = ((GHOST_SystemX11*)getSystem());
+ return system->pushEvent(new GHOST_EventDragnDrop(system->getMilliSeconds(),
+ eventType,
+ draggedObjectType,
+ window,mouseX,mouseY,data)
+ );
+}
diff --git a/intern/ghost/intern/GHOST_SystemX11.h b/intern/ghost/intern/GHOST_SystemX11.h
index 73d9c95e273..8e9131877d3 100644
--- a/intern/ghost/intern/GHOST_SystemX11.h
+++ b/intern/ghost/intern/GHOST_SystemX11.h
@@ -236,6 +236,18 @@ public:
void putClipboard(GHOST_TInt8 *buffer, bool selection) const;
/**
+ * Creates a drag'n'drop event and pushes it immediately onto the event queue.
+ * Called by GHOST_DropTargetX11 class.
+ * @param eventType The type of drag'n'drop event
+ * @param draggedObjectType The type object concerned (currently array of file names, string, ?bitmap)
+ * @param mouseX x mouse coordinate (in window coordinates)
+ * @param mouseY y mouse coordinate
+ * @param window The window on which the event occurred
+ * @return Indication whether the event was handled.
+ */
+ static GHOST_TSuccess pushDragDropEvent(GHOST_TEventType eventType, GHOST_TDragnDropTypes draggedObjectType,GHOST_IWindow* window, int mouseX, int mouseY, void* data);
+
+ /**
* @see GHOST_ISystem
*/
int toggleConsole(int action) { return 0; }
diff --git a/intern/ghost/intern/GHOST_WindowX11.cpp b/intern/ghost/intern/GHOST_WindowX11.cpp
index 71e3f7b3340..ea99a9ea7b4 100644
--- a/intern/ghost/intern/GHOST_WindowX11.cpp
+++ b/intern/ghost/intern/GHOST_WindowX11.cpp
@@ -32,6 +32,7 @@
#include "GHOST_WindowX11.h"
#include "GHOST_SystemX11.h"
+#include "GHOST_DropTargetX11.h"
#include "STR_String.h"
#include "GHOST_Debug.h"
@@ -326,6 +327,10 @@ GHOST_WindowX11(
}
+ /* initialize drop target for newly created window */
+ m_dropTarget = new GHOST_DropTargetX11(this, m_system);
+ GHOST_PRINT("Set drop target\n");
+
/*
* One of the problem with WM-spec is that can't set a property
* to a window that isn't mapped. That is why we can't "just
@@ -1318,6 +1323,7 @@ GHOST_WindowX11::
}
#endif
+ delete m_dropTarget;
XDestroyWindow(m_display, m_window);
XFree(m_visual);
diff --git a/intern/ghost/intern/GHOST_WindowX11.h b/intern/ghost/intern/GHOST_WindowX11.h
index f1146db50f8..f5cbceff7a4 100644
--- a/intern/ghost/intern/GHOST_WindowX11.h
+++ b/intern/ghost/intern/GHOST_WindowX11.h
@@ -45,6 +45,7 @@
class STR_String;
class GHOST_SystemX11;
+class GHOST_DropTargetX11;
/**
* X11 implementation of GHOST_IWindow.
@@ -224,6 +225,9 @@ public:
XIC getX11_XIC() { return m_xic; }
#endif
+ GHOST_DropTargetX11* getDropTarget()
+ { return m_dropTarget; }
+
/*
* Need this in case that we want start the window
* in FullScree or Maximized state.
@@ -361,6 +365,8 @@ private :
/** Cache of XC_* ID's to XCursor structures */
std::map<unsigned int, Cursor> m_standard_cursors;
+ GHOST_DropTargetX11 * m_dropTarget;
+
#ifdef WITH_X11_XINPUT
/* Tablet devices */
XTablet m_xtablet;
diff --git a/source/creator/CMakeLists.txt b/source/creator/CMakeLists.txt
index 1b4d88a6f2e..6947f88d289 100644
--- a/source/creator/CMakeLists.txt
+++ b/source/creator/CMakeLists.txt
@@ -828,6 +828,7 @@ endif()
extern_minilzo
extern_lzma
extern_colamd
+ extern_xdnd
ge_logic_ketsji
extern_recastnavigation
ge_phys_common
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-29 04:35:27 +0300