mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-27 06:00:22 +00:00
882 lines
27 KiB
C
882 lines
27 KiB
C
/* GDK - The GIMP Drawing Kit
|
||
* Copyright (C) 1995-1999 Peter Mattis, Spencer Kimball and Josh MacDonald
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Lesser General Public
|
||
* License as published by the Free Software Foundation; either
|
||
* version 2 of the License, or (at your option) any later version.
|
||
*
|
||
* This library is distributed in the hope that it will be useful,
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
* Lesser General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser General Public
|
||
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
/*
|
||
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
|
||
* file for a list of people on the GTK+ Team. See the ChangeLog
|
||
* files for a list of changes. These files are distributed with
|
||
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
|
||
*/
|
||
|
||
#include "config.h"
|
||
|
||
#include "gdkdropprivate.h"
|
||
|
||
#include "gdkprivate.h"
|
||
#include "gdkasync.h"
|
||
#include "gdkclipboardprivate.h"
|
||
#include "gdkclipboard-x11.h"
|
||
#include "gdkdeviceprivate.h"
|
||
#include "gdkdisplay-x11.h"
|
||
#include "gdkdragprivate.h"
|
||
#include <glib/gi18n-lib.h>
|
||
#include "gdkprivate-x11.h"
|
||
#include "gdkscreen-x11.h"
|
||
#include "gdkselectioninputstream-x11.h"
|
||
#include "gdkselectionoutputstream-x11.h"
|
||
#include "gdktextlistconverter-x11.h"
|
||
|
||
#include <X11/Xlib.h>
|
||
#include <X11/Xutil.h>
|
||
#include <X11/Xatom.h>
|
||
#include <X11/extensions/shape.h>
|
||
|
||
#include <string.h>
|
||
|
||
#define GDK_TYPE_X11_DROP (gdk_x11_drop_get_type())
|
||
G_DECLARE_FINAL_TYPE (GdkX11Drop, gdk_x11_drop, GDK, X11_DROP, GdkDrop)
|
||
|
||
struct _GdkX11Drop
|
||
{
|
||
GdkDrop parent_instance;
|
||
|
||
Window source_window;
|
||
|
||
guint16 last_x; /* Coordinates from last event */
|
||
guint16 last_y;
|
||
gulong timestamp; /* Timestamp we claimed the DND selection with */
|
||
guint version; /* Xdnd protocol version */
|
||
|
||
GdkDragAction xdnd_actions; /* What is currently set in XdndActionList */
|
||
GdkDragAction suggested_action;
|
||
|
||
guint xdnd_targets_set : 1; /* Whether we've already set XdndTypeList */
|
||
guint xdnd_have_actions : 1; /* Whether an XdndActionList was provided */
|
||
guint enter_emitted : 1; /* Set after gdk_drop_emit_enter() */
|
||
};
|
||
|
||
struct _GdkX11DropClass
|
||
{
|
||
GdkDropClass parent_class;
|
||
};
|
||
|
||
/* Forward declarations */
|
||
|
||
static gboolean xdnd_source_surface_filter (GdkDisplay *display,
|
||
const XEvent *xevent,
|
||
gpointer data);
|
||
static gboolean xdnd_enter_filter (GdkSurface *surface,
|
||
const XEvent *xevent);
|
||
static gboolean xdnd_leave_filter (GdkSurface *surface,
|
||
const XEvent *xevent);
|
||
static gboolean xdnd_position_filter (GdkSurface *surface,
|
||
const XEvent *xevent);
|
||
static gboolean xdnd_drop_filter (GdkSurface *surface,
|
||
const XEvent *xevent);
|
||
|
||
static const struct {
|
||
const char *atom_name;
|
||
gboolean (* func) (GdkSurface *surface, const XEvent *event);
|
||
} xdnd_filters[] = {
|
||
{ "XdndEnter", xdnd_enter_filter },
|
||
{ "XdndLeave", xdnd_leave_filter },
|
||
{ "XdndPosition", xdnd_position_filter },
|
||
{ "XdndDrop", xdnd_drop_filter },
|
||
};
|
||
|
||
G_DEFINE_TYPE (GdkX11Drop, gdk_x11_drop, GDK_TYPE_DROP)
|
||
|
||
static GInputStream *
|
||
text_list_convert (GdkDisplay *display,
|
||
GInputStream *stream,
|
||
const char *encoding,
|
||
int format)
|
||
{
|
||
GInputStream *converter_stream;
|
||
GConverter *converter;
|
||
|
||
converter = gdk_x11_text_list_converter_to_utf8_new (display, encoding, format);
|
||
converter_stream = g_converter_input_stream_new (stream, converter);
|
||
|
||
g_object_unref (converter);
|
||
g_object_unref (stream);
|
||
|
||
return converter_stream;
|
||
}
|
||
|
||
static GInputStream *
|
||
no_convert (GdkDisplay *display,
|
||
GInputStream *stream,
|
||
const char *encoding,
|
||
int format)
|
||
{
|
||
return stream;
|
||
}
|
||
|
||
static const struct {
|
||
const char *x_target;
|
||
const char *mime_type;
|
||
GInputStream * (* convert) (GdkDisplay *, GInputStream *, const char *, int);
|
||
const char *type;
|
||
int format;
|
||
} special_targets[] = {
|
||
{ "UTF8_STRING", "text/plain;charset=utf-8", no_convert, "UTF8_STRING", 8 },
|
||
{ "COMPOUND_TEXT", "text/plain;charset=utf-8", text_list_convert, "COMPOUND_TEXT", 8 },
|
||
{ "TEXT", "text/plain;charset=utf-8", text_list_convert, "STRING", 8 },
|
||
{ "STRING", "text/plain;charset=utf-8", text_list_convert, "STRING", 8 },
|
||
{ "TARGETS", NULL, NULL, "ATOM", 32 },
|
||
{ "TIMESTAMP", NULL, NULL, "INTEGER", 32 },
|
||
{ "SAVE_TARGETS", NULL, NULL, "NULL", 32 }
|
||
};
|
||
|
||
static void
|
||
gdk_x11_drop_read_got_stream (GObject *source,
|
||
GAsyncResult *res,
|
||
gpointer data)
|
||
{
|
||
GTask *task = data;
|
||
GError *error = NULL;
|
||
GInputStream *stream;
|
||
const char *type;
|
||
int format;
|
||
|
||
stream = gdk_x11_selection_input_stream_new_finish (res, &type, &format, &error);
|
||
if (stream == NULL)
|
||
{
|
||
GSList *targets, *next;
|
||
|
||
targets = g_task_get_task_data (task);
|
||
next = targets->next;
|
||
if (next)
|
||
{
|
||
GdkDrop *drop = GDK_DROP (g_task_get_source_object (task));
|
||
|
||
GDK_DISPLAY_DEBUG (gdk_drop_get_display (drop), DND,
|
||
"reading %s failed, trying %s next",
|
||
(char *) targets->data, (char *) next->data);
|
||
targets->next = NULL;
|
||
g_task_set_task_data (task, next, (GDestroyNotify) g_slist_free);
|
||
gdk_x11_selection_input_stream_new_async (gdk_drop_get_display (drop),
|
||
"XdndSelection",
|
||
next->data,
|
||
CurrentTime,
|
||
g_task_get_priority (task),
|
||
g_task_get_cancellable (task),
|
||
gdk_x11_drop_read_got_stream,
|
||
task);
|
||
g_error_free (error);
|
||
return;
|
||
}
|
||
|
||
g_task_return_error (task, error);
|
||
}
|
||
else
|
||
{
|
||
gsize i;
|
||
const char *mime_type = ((GSList *) g_task_get_task_data (task))->data;
|
||
GdkDrop *drop = GDK_DROP (g_task_get_source_object (task));
|
||
|
||
for (i = 0; i < G_N_ELEMENTS (special_targets); i++)
|
||
{
|
||
if (g_str_equal (mime_type, special_targets[i].x_target))
|
||
{
|
||
g_assert (special_targets[i].mime_type != NULL);
|
||
|
||
mime_type = g_intern_string (special_targets[i].mime_type);
|
||
g_task_set_task_data (task, g_slist_prepend (NULL, (gpointer) mime_type), (GDestroyNotify) g_slist_free);
|
||
stream = special_targets[i].convert (gdk_drop_get_display (drop), stream, type, format);
|
||
break;
|
||
}
|
||
}
|
||
|
||
GDK_DISPLAY_DEBUG (gdk_drop_get_display (drop), DND,
|
||
"reading DND as %s now",
|
||
(const char *)((GSList *) g_task_get_task_data (task))->data);
|
||
g_task_return_pointer (task, stream, g_object_unref);
|
||
}
|
||
|
||
g_object_unref (task);
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drop_read_async (GdkDrop *drop,
|
||
GdkContentFormats *formats,
|
||
int io_priority,
|
||
GCancellable *cancellable,
|
||
GAsyncReadyCallback callback,
|
||
gpointer user_data)
|
||
{
|
||
GSList *targets;
|
||
GTask *task;
|
||
|
||
task = g_task_new (drop, cancellable, callback, user_data);
|
||
g_task_set_priority (task, io_priority);
|
||
g_task_set_source_tag (task, gdk_x11_drop_read_async);
|
||
|
||
targets = gdk_x11_clipboard_formats_to_targets (formats);
|
||
g_task_set_task_data (task, targets, (GDestroyNotify) g_slist_free);
|
||
if (targets == NULL)
|
||
{
|
||
g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
|
||
_("No compatible transfer format found"));
|
||
return;
|
||
}
|
||
|
||
GDK_DISPLAY_DEBUG (gdk_drop_get_display (drop), DND,
|
||
"new read for %s (%u other options)",
|
||
(char *) targets->data, g_slist_length (targets->next));
|
||
gdk_x11_selection_input_stream_new_async (gdk_drop_get_display (drop),
|
||
"XdndSelection",
|
||
targets->data,
|
||
CurrentTime,
|
||
io_priority,
|
||
cancellable,
|
||
gdk_x11_drop_read_got_stream,
|
||
task);
|
||
}
|
||
|
||
static GInputStream *
|
||
gdk_x11_drop_read_finish (GdkDrop *drop,
|
||
GAsyncResult *result,
|
||
const char **out_mime_type,
|
||
GError **error)
|
||
{
|
||
GTask *task;
|
||
|
||
g_return_val_if_fail (g_task_is_valid (result, G_OBJECT (drop)), NULL);
|
||
task = G_TASK (result);
|
||
g_return_val_if_fail (g_task_get_source_tag (task) == gdk_x11_drop_read_async, NULL);
|
||
|
||
if (out_mime_type)
|
||
{
|
||
GSList *targets;
|
||
|
||
targets = g_task_get_task_data (task);
|
||
*out_mime_type = targets ? targets->data : NULL;
|
||
}
|
||
|
||
return g_task_propagate_pointer (task, error);
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drop_finalize (GObject *object)
|
||
{
|
||
GdkX11Drop *drop_x11 = GDK_X11_DROP (object);
|
||
|
||
if (gdk_drop_get_drag (GDK_DROP (drop_x11)) == NULL)
|
||
{
|
||
g_signal_handlers_disconnect_by_func (gdk_drop_get_display (GDK_DROP (drop_x11)),
|
||
xdnd_source_surface_filter,
|
||
drop_x11);
|
||
/* Should we remove the GDK_PROPERTY_NOTIFY mask?
|
||
* but we might want it for other reasons. (Like
|
||
* INCR selection transactions).
|
||
*/
|
||
}
|
||
|
||
G_OBJECT_CLASS (gdk_x11_drop_parent_class)->finalize (object);
|
||
}
|
||
|
||
/* Utility functions */
|
||
|
||
#ifdef G_ENABLE_DEBUG
|
||
static void
|
||
print_target_list (GdkContentFormats *formats)
|
||
{
|
||
char *name = gdk_content_formats_to_string (formats);
|
||
g_message ("DND formats: %s", name);
|
||
g_free (name);
|
||
}
|
||
#endif /* G_ENABLE_DEBUG */
|
||
|
||
/*************************************************************
|
||
***************************** XDND **************************
|
||
*************************************************************/
|
||
|
||
/* Utility functions */
|
||
|
||
static struct {
|
||
const char *name;
|
||
GdkDragAction action;
|
||
} xdnd_actions_table[] = {
|
||
{ "XdndActionCopy", GDK_ACTION_COPY },
|
||
{ "XdndActionMove", GDK_ACTION_MOVE },
|
||
{ "XdndActionLink", GDK_ACTION_LINK },
|
||
{ "XdndActionAsk", GDK_ACTION_ASK },
|
||
{ "XdndActionPrivate", GDK_ACTION_COPY },
|
||
};
|
||
|
||
static const int xdnd_n_actions = G_N_ELEMENTS (xdnd_actions_table);
|
||
|
||
static GdkDragAction
|
||
xdnd_action_from_atom (GdkDisplay *display,
|
||
Atom xatom)
|
||
{
|
||
const char *name;
|
||
int i;
|
||
|
||
if (xatom == None)
|
||
return 0;
|
||
|
||
name = gdk_x11_get_xatom_name_for_display (display, xatom);
|
||
|
||
for (i = 0; i < xdnd_n_actions; i++)
|
||
if (g_str_equal (name, xdnd_actions_table[i].name))
|
||
return xdnd_actions_table[i].action;
|
||
|
||
return 0;
|
||
}
|
||
|
||
static Atom
|
||
xdnd_action_to_atom (GdkDisplay *display,
|
||
GdkDragAction action)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; i < xdnd_n_actions; i++)
|
||
if (action == xdnd_actions_table[i].action)
|
||
return gdk_x11_get_xatom_by_name_for_display (display, xdnd_actions_table[i].name);
|
||
|
||
return None;
|
||
}
|
||
|
||
/* Target side */
|
||
|
||
static void
|
||
gdk_x11_drop_update_actions (GdkX11Drop *drop_x11)
|
||
{
|
||
GdkDragAction actions;
|
||
|
||
if (!drop_x11->xdnd_have_actions)
|
||
actions = drop_x11->suggested_action;
|
||
else if (drop_x11->suggested_action & GDK_ACTION_ASK)
|
||
actions = drop_x11->xdnd_actions | GDK_ACTION_ASK;
|
||
else
|
||
actions = drop_x11->xdnd_actions & GDK_ACTION_ALL;
|
||
|
||
gdk_drop_set_actions (GDK_DROP (drop_x11), actions);
|
||
}
|
||
|
||
void
|
||
gdk_x11_drop_read_actions (GdkDrop *drop)
|
||
{
|
||
GdkX11Drop *drop_x11 = GDK_X11_DROP (drop);
|
||
GdkDisplay *display = gdk_drop_get_display (drop);
|
||
GdkDrag *drag;
|
||
GdkDragAction actions = GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK | GDK_ACTION_ASK;
|
||
Atom type;
|
||
int format;
|
||
gulong nitems, after;
|
||
guchar *data;
|
||
Atom *atoms;
|
||
int i;
|
||
|
||
drag = gdk_drop_get_drag (drop);
|
||
|
||
drop_x11->xdnd_have_actions = FALSE;
|
||
|
||
if (drag == NULL)
|
||
{
|
||
/* Get the XdndActionList, if set */
|
||
|
||
gdk_x11_display_error_trap_push (display);
|
||
if (XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
|
||
drop_x11->source_window,
|
||
gdk_x11_get_xatom_by_name_for_display (display, "XdndActionList"),
|
||
0, 65536,
|
||
False, XA_ATOM, &type, &format, &nitems,
|
||
&after, &data) == Success &&
|
||
type == XA_ATOM)
|
||
{
|
||
actions = 0;
|
||
|
||
atoms = (Atom *)data;
|
||
|
||
for (i = 0; i < nitems; i++)
|
||
actions |= xdnd_action_from_atom (display, atoms[i]);
|
||
|
||
drop_x11->xdnd_have_actions = TRUE;
|
||
|
||
#ifdef G_ENABLE_DEBUG
|
||
if (GDK_DISPLAY_DEBUG_CHECK (display, DND))
|
||
{
|
||
GString *action_str = g_string_new (NULL);
|
||
GdkDragAction drop_actions = gdk_drop_get_actions (drop);
|
||
if (drop_actions & GDK_ACTION_MOVE)
|
||
g_string_append(action_str, "MOVE ");
|
||
if (drop_actions & GDK_ACTION_COPY)
|
||
g_string_append(action_str, "COPY ");
|
||
if (drop_actions & GDK_ACTION_LINK)
|
||
g_string_append(action_str, "LINK ");
|
||
if (drop_actions & GDK_ACTION_ASK)
|
||
g_string_append(action_str, "ASK ");
|
||
|
||
g_message("Xdnd actions = %s", action_str->str);
|
||
g_string_free (action_str, TRUE);
|
||
}
|
||
#endif /* G_ENABLE_DEBUG */
|
||
}
|
||
|
||
if (data)
|
||
XFree (data);
|
||
|
||
gdk_x11_display_error_trap_pop_ignored (display);
|
||
}
|
||
else
|
||
{
|
||
actions = gdk_drag_get_actions (drag);
|
||
drop_x11->xdnd_have_actions = TRUE;
|
||
}
|
||
|
||
drop_x11->xdnd_actions = actions;
|
||
gdk_x11_drop_update_actions (drop_x11);
|
||
}
|
||
|
||
/* We have to make sure that the XdndActionList we keep internally
|
||
* is up to date with the XdndActionList on the source window
|
||
* because we get no notification, because Xdnd wasn’t meant
|
||
* to continually send actions. So we select on PropertyChangeMask
|
||
* and add this filter.
|
||
*/
|
||
static gboolean
|
||
xdnd_source_surface_filter (GdkDisplay *display,
|
||
const XEvent *xevent,
|
||
gpointer data)
|
||
{
|
||
GdkX11Drop *drop_x11 = data;
|
||
|
||
if ((xevent->xany.type == PropertyNotify) &&
|
||
(xevent->xany.window == drop_x11->source_window) &&
|
||
(xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "XdndActionList")))
|
||
{
|
||
gdk_x11_drop_read_actions (GDK_DROP (drop_x11));
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_enter_filter (GdkSurface *surface,
|
||
const XEvent *xevent)
|
||
{
|
||
GdkDisplay *display;
|
||
GdkX11Display *display_x11;
|
||
GdkDrop *drop;
|
||
GdkX11Drop *drop_x11;
|
||
GdkDrag *drag;
|
||
GdkSeat *seat;
|
||
int i;
|
||
Atom type;
|
||
int format;
|
||
gulong nitems, after;
|
||
guchar *data;
|
||
Atom *atoms;
|
||
GdkContentFormats *content_formats;
|
||
GPtrArray *formats;
|
||
Window source_window;
|
||
gboolean get_types;
|
||
int version;
|
||
|
||
source_window = xevent->xclient.data.l[0];
|
||
get_types = ((xevent->xclient.data.l[1] & 1) != 0);
|
||
version = (xevent->xclient.data.l[1] & 0xff000000) >> 24;
|
||
|
||
display = gdk_surface_get_display (surface);
|
||
display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
GDK_DISPLAY_DEBUG (display, DND,
|
||
"XdndEnter: source_window: %#lx, version: %#x",
|
||
source_window, version);
|
||
|
||
if (version < 3)
|
||
{
|
||
/* Old source ignore */
|
||
GDK_DISPLAY_DEBUG (display, DND, "Ignored old XdndEnter message");
|
||
return TRUE;
|
||
}
|
||
|
||
if (display_x11->current_drop)
|
||
{
|
||
if (GDK_X11_DROP (display_x11->current_drop)->enter_emitted)
|
||
gdk_drop_emit_leave_event (display_x11->current_drop, FALSE, GDK_CURRENT_TIME);
|
||
g_clear_object (&display_x11->current_drop);
|
||
}
|
||
|
||
seat = gdk_display_get_default_seat (display);
|
||
|
||
formats = g_ptr_array_new ();
|
||
if (get_types)
|
||
{
|
||
gdk_x11_display_error_trap_push (display);
|
||
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
|
||
source_window,
|
||
gdk_x11_get_xatom_by_name_for_display (display, "XdndTypeList"),
|
||
0, 65536,
|
||
False, XA_ATOM, &type, &format, &nitems,
|
||
&after, &data);
|
||
|
||
if (gdk_x11_display_error_trap_pop (display) || (format != 32) || (type != XA_ATOM))
|
||
{
|
||
if (data)
|
||
XFree (data);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
atoms = (Atom *)data;
|
||
for (i = 0; i < nitems; i++)
|
||
g_ptr_array_add (formats,
|
||
(gpointer) gdk_x11_get_xatom_name_for_display (display, atoms[i]));
|
||
|
||
XFree (atoms);
|
||
}
|
||
else
|
||
{
|
||
for (i = 0; i < 3; i++)
|
||
if (xevent->xclient.data.l[2 + i])
|
||
g_ptr_array_add (formats,
|
||
(gpointer) gdk_x11_get_xatom_name_for_display (display,
|
||
xevent->xclient.data.l[2 + i]));
|
||
}
|
||
content_formats = gdk_content_formats_new ((const char **) formats->pdata, formats->len);
|
||
g_ptr_array_unref (formats);
|
||
|
||
#ifdef G_ENABLE_DEBUG
|
||
if (GDK_DISPLAY_DEBUG_CHECK (display, DND))
|
||
print_target_list (content_formats);
|
||
#endif /* G_ENABLE_DEBUG */
|
||
|
||
drag = gdk_x11_drag_find (display, source_window, GDK_SURFACE_XID (surface));
|
||
|
||
drop_x11 = g_object_new (GDK_TYPE_X11_DROP,
|
||
"device", gdk_seat_get_pointer (seat),
|
||
"drag", drag,
|
||
"formats", content_formats,
|
||
"surface", surface,
|
||
NULL);
|
||
drop = GDK_DROP (drop_x11);
|
||
|
||
drop_x11->version = version;
|
||
|
||
/* FIXME: Should extend DnD protocol to have device info */
|
||
|
||
drop_x11->source_window = source_window;
|
||
if (drag == NULL)
|
||
{
|
||
Display *xdisplay = gdk_x11_display_get_xdisplay (display);
|
||
XWindowAttributes attrs;
|
||
|
||
gdk_x11_display_error_trap_push (display);
|
||
XGetWindowAttributes (xdisplay, source_window, &attrs);
|
||
if (!(attrs.your_event_mask & PropertyChangeMask))
|
||
{
|
||
XSelectInput (xdisplay, source_window, attrs.your_event_mask | PropertyChangeMask);
|
||
}
|
||
gdk_x11_display_error_trap_pop_ignored (display);
|
||
|
||
g_signal_connect (display, "xevent", G_CALLBACK (xdnd_source_surface_filter), drop);
|
||
}
|
||
gdk_x11_drop_read_actions (drop);
|
||
|
||
display_x11->current_drop = drop;
|
||
|
||
gdk_content_formats_unref (content_formats);
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_leave_filter (GdkSurface *surface,
|
||
const XEvent *xevent)
|
||
{
|
||
Window source_window = xevent->xclient.data.l[0];
|
||
GdkDisplay *display;
|
||
GdkX11Display *display_x11;
|
||
|
||
display = gdk_surface_get_display (surface);
|
||
display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
GDK_DISPLAY_DEBUG (display, DND,
|
||
"XdndLeave: source_window: %#lx",
|
||
source_window);
|
||
|
||
if ((display_x11->current_drop != NULL) &&
|
||
(GDK_X11_DROP (display_x11->current_drop)->source_window == source_window))
|
||
{
|
||
if (GDK_X11_DROP (display_x11->current_drop)->enter_emitted)
|
||
gdk_drop_emit_leave_event (display_x11->current_drop, FALSE, GDK_CURRENT_TIME);
|
||
|
||
g_clear_object (&display_x11->current_drop);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_position_filter (GdkSurface *surface,
|
||
const XEvent *xevent)
|
||
{
|
||
GdkX11Surface *impl;
|
||
Window source_window = xevent->xclient.data.l[0];
|
||
gint16 x_root = xevent->xclient.data.l[2] >> 16;
|
||
gint16 y_root = xevent->xclient.data.l[2] & 0xffff;
|
||
guint32 time = xevent->xclient.data.l[3];
|
||
Atom action = xevent->xclient.data.l[4];
|
||
GdkDisplay *display;
|
||
GdkX11Display *display_x11;
|
||
GdkDrop *drop;
|
||
GdkX11Drop *drop_x11;
|
||
|
||
display = gdk_surface_get_display (surface);
|
||
display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
GDK_DISPLAY_DEBUG (display, DND,
|
||
"XdndPosition: source_window: %#lx position: (%d, %d) time: %d action: %ld",
|
||
source_window, x_root, y_root, time, action);
|
||
|
||
drop = display_x11->current_drop;
|
||
drop_x11 = GDK_X11_DROP (drop);
|
||
|
||
if ((drop != NULL) &&
|
||
(drop_x11->source_window == source_window))
|
||
{
|
||
surface = gdk_drop_get_surface (drop);
|
||
impl = GDK_X11_SURFACE (surface);
|
||
|
||
drop_x11->suggested_action = xdnd_action_from_atom (display, action);
|
||
gdk_x11_drop_update_actions (drop_x11);
|
||
|
||
drop_x11->last_x = x_root / impl->surface_scale;
|
||
drop_x11->last_y = y_root / impl->surface_scale;
|
||
|
||
if (drop_x11->enter_emitted)
|
||
{
|
||
gdk_drop_emit_motion_event (drop, FALSE, drop_x11->last_x - impl->abs_x, drop_x11->last_y - impl->abs_y, time);
|
||
}
|
||
else
|
||
{
|
||
gdk_drop_emit_enter_event (drop, FALSE, drop_x11->last_x - impl->abs_x, drop_x11->last_y - impl->abs_y, time);
|
||
drop_x11->enter_emitted = TRUE;
|
||
}
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
static gboolean
|
||
xdnd_drop_filter (GdkSurface *surface,
|
||
const XEvent *xevent)
|
||
{
|
||
Window source_window = xevent->xclient.data.l[0];
|
||
guint32 time = xevent->xclient.data.l[2];
|
||
GdkDisplay *display;
|
||
GdkX11Display *display_x11;
|
||
GdkDrop *drop;
|
||
GdkX11Drop *drop_x11;
|
||
|
||
display = gdk_surface_get_display (surface);
|
||
display_x11 = GDK_X11_DISPLAY (display);
|
||
|
||
GDK_DISPLAY_DEBUG (display, DND,
|
||
"XdndDrop: source_window: %#lx time: %d",
|
||
source_window, time);
|
||
|
||
drop = display_x11->current_drop;
|
||
drop_x11 = GDK_X11_DROP (drop);
|
||
|
||
if ((drop != NULL) &&
|
||
(drop_x11->source_window == source_window))
|
||
{
|
||
GdkSurface *s = gdk_drop_get_surface (drop);
|
||
GdkX11Surface *si = GDK_X11_SURFACE (s);
|
||
gdk_x11_surface_set_user_time (s, time);
|
||
|
||
gdk_drop_emit_drop_event (drop, FALSE, drop_x11->last_x - si->abs_x, drop_x11->last_y - si->abs_y, time);
|
||
}
|
||
|
||
return TRUE;
|
||
}
|
||
|
||
gboolean
|
||
gdk_x11_drop_filter (GdkSurface *surface,
|
||
const XEvent *xevent)
|
||
|
||
{
|
||
GdkDisplay *display;
|
||
int i;
|
||
|
||
if (!GDK_IS_X11_SURFACE (surface))
|
||
return GDK_FILTER_CONTINUE;
|
||
|
||
if (xevent->type != ClientMessage)
|
||
return GDK_FILTER_CONTINUE;
|
||
|
||
display = GDK_SURFACE_DISPLAY (surface);
|
||
|
||
for (i = 0; i < G_N_ELEMENTS (xdnd_filters); i++)
|
||
{
|
||
if (xevent->xclient.message_type != gdk_x11_get_xatom_by_name_for_display (display, xdnd_filters[i].atom_name))
|
||
continue;
|
||
|
||
if (xdnd_filters[i].func (surface, xevent))
|
||
return TRUE;
|
||
else
|
||
return FALSE;
|
||
}
|
||
|
||
return FALSE;
|
||
}
|
||
|
||
/* Destination side */
|
||
|
||
static void
|
||
gdk_x11_drop_do_nothing (Window window,
|
||
gboolean success,
|
||
gpointer data)
|
||
{
|
||
if (!success)
|
||
{
|
||
GDK_DISPLAY_DEBUG (GDK_DISPLAY (data), DND, "Send event to %lx failed", window);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drop_status (GdkDrop *drop,
|
||
GdkDragAction actions,
|
||
GdkDragAction preferred)
|
||
{
|
||
GdkX11Drop *drop_x11 = GDK_X11_DROP (drop);
|
||
GdkDragAction possible_actions, suggested_action;
|
||
XEvent xev;
|
||
GdkDisplay *display;
|
||
|
||
display = gdk_drop_get_display (drop);
|
||
|
||
possible_actions = actions & gdk_drop_get_actions (drop);
|
||
|
||
if (preferred & possible_actions)
|
||
suggested_action = preferred;
|
||
else if (drop_x11->suggested_action & possible_actions)
|
||
suggested_action = drop_x11->suggested_action;
|
||
else if (possible_actions & GDK_ACTION_COPY)
|
||
suggested_action = GDK_ACTION_COPY;
|
||
else if (possible_actions & GDK_ACTION_MOVE)
|
||
suggested_action = GDK_ACTION_MOVE;
|
||
else if (possible_actions & GDK_ACTION_ASK)
|
||
suggested_action = GDK_ACTION_ASK;
|
||
else
|
||
suggested_action = 0;
|
||
|
||
xev.xclient.type = ClientMessage;
|
||
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndStatus");
|
||
xev.xclient.format = 32;
|
||
xev.xclient.window = drop_x11->source_window;
|
||
|
||
xev.xclient.data.l[0] = GDK_SURFACE_XID (gdk_drop_get_surface (drop));
|
||
xev.xclient.data.l[1] = (possible_actions != 0) ? (2 | 1) : 0;
|
||
xev.xclient.data.l[2] = 0;
|
||
xev.xclient.data.l[3] = 0;
|
||
xev.xclient.data.l[4] = xdnd_action_to_atom (display, suggested_action);
|
||
|
||
if (gdk_drop_get_drag (drop))
|
||
{
|
||
gdk_x11_drag_handle_status (display, &xev);
|
||
}
|
||
else
|
||
{
|
||
_gdk_x11_send_client_message_async (display,
|
||
drop_x11->source_window,
|
||
FALSE, 0,
|
||
&xev.xclient,
|
||
gdk_x11_drop_do_nothing,
|
||
display);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drop_finish (GdkDrop *drop,
|
||
GdkDragAction action)
|
||
{
|
||
GdkX11Drop *drop_x11 = GDK_X11_DROP (drop);
|
||
GdkDisplay *display = gdk_drop_get_display (drop);
|
||
XEvent xev;
|
||
|
||
if (action == GDK_ACTION_MOVE)
|
||
{
|
||
XConvertSelection (GDK_DISPLAY_XDISPLAY (display),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "XdndSelection"),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "DELETE"),
|
||
gdk_x11_get_xatom_by_name_for_display (display, "GDK_SELECTION"),
|
||
drop_x11->source_window,
|
||
GDK_X11_DROP (drop)->timestamp);
|
||
/* XXX: Do we need to wait for a reply here before sending the next message? */
|
||
}
|
||
|
||
xev.xclient.type = ClientMessage;
|
||
xev.xclient.message_type = gdk_x11_get_xatom_by_name_for_display (display, "XdndFinished");
|
||
xev.xclient.format = 32;
|
||
xev.xclient.window = drop_x11->source_window;
|
||
|
||
xev.xclient.data.l[0] = GDK_SURFACE_XID (gdk_drop_get_surface (drop));
|
||
if (action != 0)
|
||
{
|
||
xev.xclient.data.l[1] = 1;
|
||
xev.xclient.data.l[2] = xdnd_action_to_atom (display, action);
|
||
}
|
||
else
|
||
{
|
||
xev.xclient.data.l[1] = 0;
|
||
xev.xclient.data.l[2] = None;
|
||
}
|
||
xev.xclient.data.l[3] = 0;
|
||
xev.xclient.data.l[4] = 0;
|
||
|
||
if (gdk_drop_get_drag (drop))
|
||
{
|
||
gdk_x11_drag_handle_finished (display, &xev);
|
||
}
|
||
else
|
||
{
|
||
_gdk_x11_send_client_message_async (display,
|
||
drop_x11->source_window,
|
||
FALSE, 0,
|
||
&xev.xclient,
|
||
gdk_x11_drop_do_nothing,
|
||
display);
|
||
}
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drop_class_init (GdkX11DropClass *klass)
|
||
{
|
||
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
||
GdkDropClass *drop_class = GDK_DROP_CLASS (klass);
|
||
|
||
object_class->finalize = gdk_x11_drop_finalize;
|
||
|
||
drop_class->status = gdk_x11_drop_status;
|
||
drop_class->finish = gdk_x11_drop_finish;
|
||
drop_class->read_async = gdk_x11_drop_read_async;
|
||
drop_class->read_finish = gdk_x11_drop_read_finish;
|
||
}
|
||
|
||
static void
|
||
gdk_x11_drop_init (GdkX11Drop *drag)
|
||
{
|
||
}
|
||
|