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x11: Refactor code

Browse Source 
This is in preparation for DND.

It moves a lot of code from gdkclipboard-x11.c to
gdkselectionoutputstream-x11.c to untangle it from GdkX11Clipboard
usage.
This commit is contained in:
Benjamin Otte 2017-12-12 15:25:34 +01:00
parent 80dcdd3df6
commit 5df527edaf
4 changed files with 492 additions and 414 deletions
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347
gdk/x11/gdkclipboard-x11.c
View File

@ -92,12 +92,12 @@ gdk_x11_clipboard_default_output_done (GObject *clipboard,
}
static void
gdk_x11_clipboard_default_output_handler (GdkX11Clipboard *cb,
const char *target,
GOutputStream *stream)
gdk_x11_clipboard_default_output_handler (GOutputStream *stream,
const char *mime_type,
gpointer user_data)
{
gdk_clipboard_write_async (GDK_CLIPBOARD (cb),
g_intern_string (target),
gdk_clipboard_write_async (GDK_CLIPBOARD (user_data),
mime_type,
stream,
G_PRIORITY_DEFAULT,
NULL,
@ -106,108 +106,6 @@ gdk_x11_clipboard_default_output_handler (GdkX11Clipboard *cb,
g_object_unref (stream);
}
static void
handle_targets_done (GObject *stream,
GAsyncResult *result,
gpointer user_data)
{
GError *error = NULL;
gsize bytes_written;
if (!g_output_stream_write_all_finish (G_OUTPUT_STREAM (stream), result, &bytes_written, &error))
{
GDK_NOTE(CLIPBOARD, g_printerr ("---: failed to send targets after %zu bytes: %s\n",
bytes_written, error->message));
g_error_free (error);
}
g_free (user_data);
}
static Atom *
gdk_x11_clipboard_formats_to_atoms (GdkDisplay *display,
gboolean include_special,
GdkContentFormats *formats,
gsize *n_atoms);
static void
handle_targets (GdkX11Clipboard *cb,
const char *target,
const char *encoding,
int format,
GOutputStream *stream)
{
GdkClipboard *clipboard = GDK_CLIPBOARD (cb);
Atom *atoms;
gsize n_atoms;
atoms = gdk_x11_clipboard_formats_to_atoms (gdk_clipboard_get_display (clipboard),
TRUE,
gdk_clipboard_get_formats (clipboard),
&n_atoms);
print_atoms (cb, "sending targets", atoms, n_atoms);
g_output_stream_write_all_async (stream,
atoms,
n_atoms * sizeof (Atom),
G_PRIORITY_DEFAULT,
NULL,
handle_targets_done,
atoms);
g_object_unref (stream);
}
static void
handle_timestamp_done (GObject *stream,
GAsyncResult *result,
gpointer user_data)
{
GError *error = NULL;
gsize bytes_written;
if (!g_output_stream_write_all_finish (G_OUTPUT_STREAM (stream), result, &bytes_written, &error))
{
GDK_NOTE(CLIPBOARD, g_printerr ("---: failed to send timestamp after %zu bytes: %s\n",
bytes_written, error->message));
g_error_free (error);
}
g_slice_free (gulong, user_data);
}
static void
handle_timestamp (GdkX11Clipboard *cb,
const char *target,
const char *encoding,
int format,
GOutputStream *stream)
{
gulong *timestamp;
timestamp = g_slice_new (gulong);
*timestamp = cb->timestamp;
g_output_stream_write_all_async (stream,
timestamp,
sizeof (gulong),
G_PRIORITY_DEFAULT,
NULL,
handle_timestamp_done,
timestamp);
g_object_unref (stream);
}
static void
handle_save_targets (GdkX11Clipboard *cb,
const char *target,
const char *encoding,
int format,
GOutputStream *stream)
{
/* Don't do anything */
g_object_unref (stream);
}
static GInputStream *
text_list_convert (GdkX11Clipboard *cb,
GInputStream *stream,
@ -228,37 +126,6 @@ text_list_convert (GdkX11Clipboard *cb,
return converter_stream;
}
static void
handle_text_list (GdkX11Clipboard *cb,
const char *target,
const char *encoding,
int format,
GOutputStream *stream)
{
GOutputStream *converter_stream;
GConverter *converter;
converter = gdk_x11_text_list_converter_to_utf8_new (gdk_clipboard_get_display (GDK_CLIPBOARD (cb)),
encoding,
format);
converter_stream = g_converter_output_stream_new (stream, converter);
g_object_unref (converter);
g_object_unref (stream);
gdk_x11_clipboard_default_output_handler (cb, "text/plain;charset=utf-8", converter_stream);
}
static void
handle_utf8 (GdkX11Clipboard *cb,
const char *target,
const char *encoding,
int format,
GOutputStream *stream)
{
gdk_x11_clipboard_default_output_handler (cb, "text/plain;charset=utf-8", stream);
}
static GInputStream *
no_convert (GdkX11Clipboard *cb,
GInputStream *stream,
@ -268,23 +135,20 @@ no_convert (GdkX11Clipboard *cb,
return stream;
}
typedef void (* MimeTypeHandleFunc) (GdkX11Clipboard *, const char *, const char *, int, GOutputStream *);
static const struct {
const char *x_target;
const char *mime_type;
GInputStream * (* convert) (GdkX11Clipboard *, GInputStream *, const char *, int);
const char *type;
gint format;
MimeTypeHandleFunc handler;
} special_targets[] = {
{ "UTF8_STRING", "text/plain;charset=utf-8", no_convert, "UTF8_STRING", 8, handle_utf8 },
{ "COMPOUND_TEXT", "text/plain;charset=utf-8", text_list_convert, "COMPOUND_TEXT", 8, handle_text_list },
{ "TEXT", "text/plain;charset=utf-8", text_list_convert, "STRING", 8, handle_text_list },
{ "STRING", "text/plain;charset=utf-8", text_list_convert, "STRING", 8, handle_text_list },
{ "TARGETS", NULL, NULL, "ATOM", 32, handle_targets },
{ "TIMESTAMP", NULL, NULL, "INTEGER", 32, handle_timestamp },
{ "SAVE_TARGETS", NULL, NULL, "NULL", 32, handle_save_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 }
};
GSList *
@ -313,7 +177,7 @@ gdk_x11_clipboard_formats_to_targets (GdkContentFormats *formats)
return g_slist_reverse (targets);
}
static Atom *
Atom *
gdk_x11_clipboard_formats_to_atoms (GdkDisplay *display,
gboolean include_special,
GdkContentFormats *formats,
@ -332,8 +196,7 @@ gdk_x11_clipboard_formats_to_atoms (GdkDisplay *display,
if (special_targets[i].mime_type != NULL)
continue;
if (special_targets[i].handler)
targets = g_slist_prepend (targets, (gpointer) g_intern_string (special_targets[i].x_target));
targets = g_slist_prepend (targets, (gpointer) g_intern_string (special_targets[i].x_target));
}
}
@ -509,164 +372,6 @@ gdk_x11_clipboard_claim_remote (GdkX11Clipboard *cb,
gdk_x11_clipboard_request_targets (cb);
}
static gboolean
gdk_x11_clipboard_request_selection (GdkX11Clipboard *cb,
GdkX11PendingSelectionNotify *notify,
Window requestor,
const char *target,
const char *property,
gulong timestamp)
{
const char *mime_type;
GdkDisplay *display;
gsize i;
display = gdk_clipboard_get_display (GDK_CLIPBOARD (cb));
mime_type = gdk_intern_mime_type (target);
if (mime_type)
{
if (gdk_content_formats_contain_mime_type (gdk_clipboard_get_formats (GDK_CLIPBOARD (cb)), mime_type))
{
GOutputStream *stream;
stream = gdk_x11_selection_output_stream_new (display,
notify,
requestor,
cb->selection,
target,
property,
target,
8,
timestamp);
gdk_x11_clipboard_default_output_handler (cb, target, stream);
return TRUE;
}
}
else if (g_str_equal (target, "MULTIPLE"))
{
gulong n_atoms;
gulong nbytes;
Atom prop_type;
gint prop_format;
Atom *atoms = NULL;
int error;
error = XGetWindowProperty (gdk_x11_display_get_xdisplay (display),
requestor,
gdk_x11_get_xatom_by_name_for_display (display, property),
0, 0x1FFFFFFF, False,
AnyPropertyType,
&prop_type, &prop_format,
&n_atoms, &nbytes, (guchar **) &atoms);
if (error != Success)
{
GDK_NOTE(CLIPBOARD, g_printerr ("%s: XGetProperty() during MULTIPLE failed with %d\n",
cb->selection, error));
}
else if (prop_format != 32 ||
prop_type != gdk_x11_get_xatom_by_name_for_display (display, "ATOM_PAIR"))
{
GDK_NOTE(CLIPBOARD, g_printerr ("%s: XGetProperty() type/format should be ATOM_PAIR/32 but is %s/%d\n",
cb->selection, gdk_x11_get_xatom_name_for_display (display, prop_type), prop_format));
}
else if (n_atoms < 2)
{
print_atoms (cb, "ignoring MULTIPLE request with too little elements", atoms, n_atoms);
}
else
{
gulong i;
print_atoms (cb, "MULTIPLE request", atoms, n_atoms);
if (n_atoms % 2)
{
GDK_NOTE(CLIPBOARD, g_printerr ("%s: Number of atoms is uneven at %lu, ignoring last element\n",
cb->selection, n_atoms));
n_atoms &= ~1;
}
gdk_x11_pending_selection_notify_require (notify, n_atoms / 2);
for (i = 0; i < n_atoms / 2; i++)
{
gboolean success;
if (atoms[2 * i] == None || atoms[2 * i + 1] == None)
{
success = FALSE;
GDK_NOTE(CLIPBOARD, g_printerr ("%s: None not allowed as atom in MULTIPLE request\n",
cb->selection));
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
}
else if (atoms[2 * i] == gdk_x11_get_xatom_by_name_for_display (display, "MULTIPLE"))
{
success = FALSE;
GDK_NOTE(CLIPBOARD, g_printerr ("%s: MULTIPLE as target in MULTIPLE request would cause recursion\n",
cb->selection));
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
}
else
{
success = gdk_x11_clipboard_request_selection (cb,
notify,
requestor,
gdk_x11_get_xatom_name_for_display (display, atoms[2 * i]),
gdk_x11_get_xatom_name_for_display (display, atoms[2 * i + 1]),
timestamp);
}
if (!success)
atoms[2 * i + 1] = None;
}
}
XChangeProperty (gdk_x11_display_get_xdisplay (display),
requestor,
gdk_x11_get_xatom_by_name_for_display (display, property),
prop_type, 32,
PropModeReplace, (guchar *)atoms, n_atoms);
if (atoms)
XFree (atoms);
gdk_x11_pending_selection_notify_send (notify, display, TRUE);
return TRUE;
}
else
{
for (i = 0; i < G_N_ELEMENTS (special_targets); i++)
{
if (g_str_equal (target, special_targets[i].x_target) &&
special_targets[i].handler)
{
GOutputStream *stream;
if (special_targets[i].mime_type)
mime_type = gdk_intern_mime_type (special_targets[i].mime_type);
stream = gdk_x11_selection_output_stream_new (display,
notify,
requestor,
cb->selection,
target,
property,
special_targets[i].type,
special_targets[i].format,
timestamp);
special_targets[i].handler (cb,
target,
special_targets[i].type,
special_targets[i].format,
stream);
return TRUE;
}
}
}
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
return FALSE;
}
static GdkFilterReturn
gdk_x11_clipboard_filter_event (GdkXEvent *xev,
GdkEvent *gdkevent,
@ -732,7 +437,6 @@ gdk_x11_clipboard_filter_event (GdkXEvent *xev,
case SelectionRequest:
{
GdkX11PendingSelectionNotify *notify;
const char *target, *property;
if (xevent->xselectionrequest.selection != cb->xselection)
@ -760,19 +464,16 @@ gdk_x11_clipboard_filter_event (GdkXEvent *xev,
GDK_NOTE(CLIPBOARD, g_printerr ("%s: got SelectionRequest for %s @ %s\n",
cb->selection, target, property));
notify = gdk_x11_pending_selection_notify_new (xevent->xselectionrequest.requestor,
xevent->xselectionrequest.selection,
xevent->xselectionrequest.target,
xevent->xselectionrequest.property ? xevent->xselectionrequest.property
: xevent->xselectionrequest.target,
xevent->xselectionrequest.time);
gdk_x11_clipboard_request_selection (cb,
notify,
xevent->xselectionrequest.requestor,
target,
property,
xevent->xselectionrequest.time);
gdk_x11_selection_output_streams_create (display,
gdk_clipboard_get_formats (GDK_CLIPBOARD (cb)),
xevent->xselectionrequest.requestor,
xevent->xselectionrequest.selection,
xevent->xselectionrequest.target,
xevent->xselectionrequest.property ? xevent->xselectionrequest.property
: xevent->xselectionrequest.target,
xevent->xselectionrequest.time,
gdk_x11_clipboard_default_output_handler,
cb);
return GDK_FILTER_REMOVE;
}

4
gdk/x11/gdkclipboard-x11.h
View File

@ -37,6 +37,10 @@ GdkClipboard * gdk_x11_clipboard_new (GdkDisplay
const gchar *selection);
GSList * gdk_x11_clipboard_formats_to_targets (GdkContentFormats *formats);
Atom * gdk_x11_clipboard_formats_to_atoms (GdkDisplay *display,
gboolean include_special,
GdkContentFormats *formats,
gsize *n_atoms);
G_END_DECLS

527
gdk/x11/gdkselectionoutputstream-x11.c
View File

@ -23,12 +23,15 @@
#include "gdkselectionoutputstream-x11.h"
#include "gdkclipboard-x11.h"
#include "gdkdisplay-x11.h"
#include "gdkintl.h"
#include "gdktextlistconverter-x11.h"
#include "gdkx11display.h"
#include "gdkx11property.h"
#include "gdkx11window.h"
typedef struct _GdkX11PendingSelectionNotify GdkX11PendingSelectionNotify;
typedef struct _GdkX11SelectionOutputStreamPrivate GdkX11SelectionOutputStreamPrivate;
struct _GdkX11SelectionOutputStreamPrivate {
@ -66,6 +69,84 @@ struct _GdkX11PendingSelectionNotify
G_DEFINE_TYPE_WITH_PRIVATE (GdkX11SelectionOutputStream, gdk_x11_selection_output_stream, G_TYPE_OUTPUT_STREAM);
static GdkX11PendingSelectionNotify *
gdk_x11_pending_selection_notify_new (Window window,
Atom selection,
Atom target,
Atom property,
Time timestamp)
{
GdkX11PendingSelectionNotify *pending;
pending = g_slice_new0 (GdkX11PendingSelectionNotify);
pending->n_pending = 1;
pending->xevent.type = SelectionNotify;
pending->xevent.serial = 0;
pending->xevent.send_event = True;
pending->xevent.requestor = window;
pending->xevent.selection = selection;
pending->xevent.target = target;
pending->xevent.property = property;
pending->xevent.time = timestamp;
return pending;
}
static void
gdk_x11_pending_selection_notify_require (GdkX11PendingSelectionNotify *notify,
guint n_sends)
{
notify->n_pending += n_sends;
}
static void
gdk_x11_pending_selection_notify_send (GdkX11PendingSelectionNotify *notify,
GdkDisplay *display,
gboolean success)
{
Display *xdisplay;
int error;
notify->n_pending--;
if (notify->n_pending)
{
GDK_NOTE(SELECTION, g_printerr ("%s:%s: not sending SelectionNotify yet, %zu streams still pending\n",
gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
gdk_x11_get_xatom_name_for_display (display, notify->xevent.target),
notify->n_pending));
return;
}
GDK_NOTE(SELECTION, g_printerr ("%s:%s: sending SelectionNotify reporting %s\n",
gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
gdk_x11_get_xatom_name_for_display (display, notify->xevent.target),
success ? "success" : "failure"));
if (!success)
notify->xevent.property = None;
xdisplay = gdk_x11_display_get_xdisplay (display);
gdk_x11_display_error_trap_push (display);
if (XSendEvent (xdisplay, notify->xevent.requestor, False, NoEventMask, (XEvent*) &notify->xevent) == 0)
{
GDK_NOTE(SELECTION, g_printerr ("%s:%s: failed to XSendEvent()\n",
gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
gdk_x11_get_xatom_name_for_display (display, notify->xevent.target)));
}
XSync (xdisplay, False);
error = gdk_x11_display_error_trap_pop (display);
if (error != Success)
{
GDK_NOTE(SELECTION, g_printerr ("%s:%s: X error during write: %d\n",
gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
gdk_x11_get_xatom_name_for_display (display, notify->xevent.target),
error));
}
}
static GdkFilterReturn
gdk_x11_selection_output_stream_filter_event (GdkXEvent *xevent,
GdkEvent *gdkevent,
@ -539,7 +620,7 @@ gdk_x11_selection_output_stream_filter_event (GdkXEvent *xev,
}
}
GOutputStream *
static GOutputStream *
gdk_x11_selection_output_stream_new (GdkDisplay *display,
GdkX11PendingSelectionNotify *notify,
Window window,
@ -576,82 +657,386 @@ gdk_x11_selection_output_stream_new (GdkDisplay *display,
return G_OUTPUT_STREAM (stream);
}
GdkX11PendingSelectionNotify *
gdk_x11_pending_selection_notify_new (Window window,
Atom selection,
Atom target,
Atom property,
Time timestamp)
static void
print_atoms (GdkDisplay *display,
const char *selection,
const char *prefix,
const Atom *atoms,
gsize n_atoms)
{
GdkX11PendingSelectionNotify *pending;
GDK_NOTE(CLIPBOARD,
gsize i;
g_printerr ("%s: %s [ ", selection, prefix);
for (i = 0; i < n_atoms; i++)
{
g_printerr ("%s%s", i > 0 ? ", " : "", gdk_x11_get_xatom_name_for_display (display , atoms[i]));
}
g_printerr (" ]\n");
);
}
pending = g_slice_new0 (GdkX11PendingSelectionNotify);
pending->n_pending = 1;
static void
handle_targets_done (GObject *stream,
GAsyncResult *result,
gpointer user_data)
{
GError *error = NULL;
gsize bytes_written;
pending->xevent.type = SelectionNotify;
pending->xevent.serial = 0;
pending->xevent.send_event = True;
pending->xevent.requestor = window;
pending->xevent.selection = selection;
pending->xevent.target = target;
pending->xevent.property = property;
pending->xevent.time = timestamp;
if (!g_output_stream_write_all_finish (G_OUTPUT_STREAM (stream), result, &bytes_written, &error))
{
GDK_NOTE(CLIPBOARD, g_printerr ("---: failed to send targets after %zu bytes: %s\n",
bytes_written, error->message));
g_error_free (error);
}
return pending;
g_free (user_data);
}
static void
handle_targets (GOutputStream *stream,
GdkDisplay *display,
GdkContentFormats *formats,
const char *target,
const char *encoding,
int format,
gulong timestamp,
GdkX11SelectionOutputHandler handler,
gpointer user_data)
{
Atom *atoms;
gsize n_atoms;
atoms = gdk_x11_clipboard_formats_to_atoms (display,
TRUE,
formats,
&n_atoms);
print_atoms (display, "---", "sending targets", atoms, n_atoms);
g_output_stream_write_all_async (stream,
atoms,
n_atoms * sizeof (Atom),
G_PRIORITY_DEFAULT,
NULL,
handle_targets_done,
atoms);
g_object_unref (stream);
}
static void
handle_timestamp_done (GObject *stream,
GAsyncResult *result,
gpointer user_data)
{
GError *error = NULL;
gsize bytes_written;
if (!g_output_stream_write_all_finish (G_OUTPUT_STREAM (stream), result, &bytes_written, &error))
{
GDK_NOTE(CLIPBOARD, g_printerr ("---: failed to send timestamp after %zu bytes: %s\n",
bytes_written, error->message));
g_error_free (error);
}
g_slice_free (gulong, user_data);
}
static void
handle_timestamp (GOutputStream *stream,
GdkDisplay *display,
GdkContentFormats *formats,
const char *target,
const char *encoding,
int format,
gulong timestamp,
GdkX11SelectionOutputHandler handler,
gpointer user_data)
{
gulong *time_;
time_ = g_slice_new (gulong);
*time_ = timestamp;
g_output_stream_write_all_async (stream,
time_,
sizeof (gulong),
G_PRIORITY_DEFAULT,
NULL,
handle_timestamp_done,
time_);
g_object_unref (stream);
}
static void
handle_save_targets (GOutputStream *stream,
GdkDisplay *display,
GdkContentFormats *formats,
const char *target,
const char *encoding,
int format,
gulong timestamp,
GdkX11SelectionOutputHandler handler,
gpointer user_data)
{
/* Don't do anything */
g_object_unref (stream);
}
static void
handle_text_list (GOutputStream *stream,
GdkDisplay *display,
GdkContentFormats *formats,
const char *target,
const char *encoding,
int format,
gulong timestamp,
GdkX11SelectionOutputHandler handler,
gpointer user_data)
{
GOutputStream *converter_stream;
GConverter *converter;
converter = gdk_x11_text_list_converter_to_utf8_new (display,
encoding,
format);
converter_stream = g_converter_output_stream_new (stream, converter);
g_object_unref (converter);
g_object_unref (stream);
handler (converter_stream, gdk_intern_mime_type ("text/plain;charset=utf-8"), user_data);
}
static void
handle_utf8 (GOutputStream *stream,
GdkDisplay *display,
GdkContentFormats *formats,
const char *target,
const char *encoding,
int format,
gulong timestamp,
GdkX11SelectionOutputHandler handler,
gpointer user_data)
{
handler (stream, gdk_intern_mime_type ("text/plain;charset=utf-8"), user_data);
}
typedef void (* MimeTypeHandleFunc) (GOutputStream *, GdkDisplay *, GdkContentFormats *, const char *, const char *, int, gulong, GdkX11SelectionOutputHandler, gpointer);
static const struct {
const char *x_target;
const char *mime_type;
const char *type;
gint format;
MimeTypeHandleFunc handler;
} special_targets[] = {
{ "UTF8_STRING", "text/plain;charset=utf-8", "UTF8_STRING", 8, handle_utf8 },
{ "COMPOUND_TEXT", "text/plain;charset=utf-8", "COMPOUND_TEXT", 8, handle_text_list },
{ "TEXT", "text/plain;charset=utf-8", "STRING", 8, handle_text_list },
{ "STRING", "text/plain;charset=utf-8", "STRING", 8, handle_text_list },
{ "TARGETS", NULL, "ATOM", 32, handle_targets },
{ "TIMESTAMP", NULL, "INTEGER", 32, handle_timestamp },
{ "SAVE_TARGETS", NULL, "NULL", 32, handle_save_targets }
};
static gboolean
gdk_x11_selection_output_streams_request (GdkDisplay *display,
GdkX11PendingSelectionNotify *notify,
GdkContentFormats *formats,
Window requestor,
Atom xselection,
Atom xtarget,
Atom xproperty,
gulong timestamp,
GdkX11SelectionOutputHandler handler,
gpointer user_data)
{
const char *mime_type, *selection, *target, *property;
gsize i;
selection = gdk_x11_get_xatom_name_for_display (display, xselection);
target = gdk_x11_get_xatom_name_for_display (display, xtarget);
property = gdk_x11_get_xatom_name_for_display (display, xproperty);
mime_type = gdk_intern_mime_type (target);
if (mime_type)
{
if (gdk_content_formats_contain_mime_type (formats, mime_type))
{
GOutputStream *stream;
stream = gdk_x11_selection_output_stream_new (display,
notify,
requestor,
selection,
target,
property,
target,
8,
timestamp);
handler (stream, target, user_data);
return TRUE;
}
}
else if (g_str_equal (target, "MULTIPLE"))
{
gulong n_atoms;
gulong nbytes;
Atom prop_type;
gint prop_format;
Atom *atoms = NULL;
int error;
error = XGetWindowProperty (gdk_x11_display_get_xdisplay (display),
requestor,
xproperty,
0, 0x1FFFFFFF, False,
AnyPropertyType,
&prop_type, &prop_format,
&n_atoms, &nbytes, (guchar **) &atoms);
if (error != Success)
{
GDK_NOTE(SELECTION, g_printerr ("%s: XGetProperty() during MULTIPLE failed with %d\n",
selection, error));
}
else if (prop_format != 32 ||
prop_type != gdk_x11_get_xatom_by_name_for_display (display, "ATOM_PAIR"))
{
GDK_NOTE(SELECTION, g_printerr ("%s: XGetProperty() type/format should be ATOM_PAIR/32 but is %s/%d\n",
selection, gdk_x11_get_xatom_name_for_display (display, prop_type), prop_format));
}
else if (n_atoms < 2)
{
print_atoms (display, selection, "ignoring MULTIPLE request with too little elements", atoms, n_atoms);
}
else
{
gulong i;
print_atoms (display, selection, "MULTIPLE request", atoms, n_atoms);
if (n_atoms % 2)
{
GDK_NOTE(SELECTION, g_printerr ("%s: Number of atoms is uneven at %lu, ignoring last element\n",
selection, n_atoms));
n_atoms &= ~1;
}
gdk_x11_pending_selection_notify_require (notify, n_atoms / 2);
for (i = 0; i < n_atoms / 2; i++)
{
gboolean success;
if (atoms[2 * i] == None || atoms[2 * i + 1] == None)
{
success = FALSE;
GDK_NOTE(SELECTION, g_printerr ("%s: None not allowed as atom in MULTIPLE request\n",
selection));
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
}
else if (atoms[2 * i] == gdk_x11_get_xatom_by_name_for_display (display, "MULTIPLE"))
{
success = FALSE;
GDK_NOTE(SELECTION, g_printerr ("%s: MULTIPLE as target in MULTIPLE request would cause recursion\n",
selection));
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
}
else
{
success = gdk_x11_selection_output_streams_request (display,
notify,
formats,
requestor,
xselection,
atoms[2 * i],
atoms[2 * i + 1],
timestamp,
handler,
user_data);
}
if (!success)
atoms[2 * i + 1] = None;
}
}
XChangeProperty (gdk_x11_display_get_xdisplay (display),
requestor,
xproperty,
prop_type, 32,
PropModeReplace, (guchar *)atoms, n_atoms);
if (atoms)
XFree (atoms);
gdk_x11_pending_selection_notify_send (notify, display, TRUE);
return TRUE;
}
else
{
for (i = 0; i < G_N_ELEMENTS (special_targets); i++)
{
if (g_str_equal (target, special_targets[i].x_target) &&
special_targets[i].handler)
{
GOutputStream *stream;
if (special_targets[i].mime_type)
mime_type = gdk_intern_mime_type (special_targets[i].mime_type);
stream = gdk_x11_selection_output_stream_new (display,
notify,
requestor,
selection,
target,
property,
special_targets[i].type,
special_targets[i].format,
timestamp);
special_targets[i].handler (stream,
display,
formats,
target,
special_targets[i].type,
special_targets[i].format,
timestamp,
handler,
user_data);
return TRUE;
}
}
}
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
return FALSE;
}
void
gdk_x11_pending_selection_notify_require (GdkX11PendingSelectionNotify *notify,
guint n_sends)
gdk_x11_selection_output_streams_create (GdkDisplay *display,
GdkContentFormats *formats,
Window requestor,
Atom selection,
Atom target,
Atom property,
gulong timestamp,
GdkX11SelectionOutputHandler handler,
gpointer user_data)
{
notify->n_pending += n_sends;
GdkX11PendingSelectionNotify *notify;
notify = gdk_x11_pending_selection_notify_new (requestor,
selection,
target,
property,
timestamp);
gdk_x11_selection_output_streams_request (display,
notify,
formats,
requestor,
selection,
target,
property,
timestamp,
handler,
user_data);
}
void
gdk_x11_pending_selection_notify_send (GdkX11PendingSelectionNotify *notify,
GdkDisplay *display,
gboolean success)
{
Display *xdisplay;
int error;
notify->n_pending--;
if (notify->n_pending)
{
GDK_NOTE(SELECTION, g_printerr ("%s:%s: not sending SelectionNotify yet, %zu streams still pending\n",
gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
gdk_x11_get_xatom_name_for_display (display, notify->xevent.target),
notify->n_pending));
return;
}
GDK_NOTE(SELECTION, g_printerr ("%s:%s: sending SelectionNotify reporting %s\n",
gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
gdk_x11_get_xatom_name_for_display (display, notify->xevent.target),
success ? "success" : "failure"));
if (!success)
notify->xevent.property = None;
xdisplay = gdk_x11_display_get_xdisplay (display);
gdk_x11_display_error_trap_push (display);
if (XSendEvent (xdisplay, notify->xevent.requestor, False, NoEventMask, (XEvent*) &notify->xevent) == 0)
{
GDK_NOTE(SELECTION, g_printerr ("%s:%s: failed to XSendEvent()\n",
gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
gdk_x11_get_xatom_name_for_display (display, notify->xevent.target)));
}
XSync (xdisplay, False);
error = gdk_x11_display_error_trap_pop (display);
if (error != Success)
{
GDK_NOTE(SELECTION, g_printerr ("%s:%s: X error during write: %d\n",
gdk_x11_get_xatom_name_for_display (display, notify->xevent.selection),
gdk_x11_get_xatom_name_for_display (display, notify->xevent.target),
error));
}
}

28
gdk/x11/gdkselectionoutputstream-x11.h
View File

@ -36,11 +36,11 @@ G_BEGIN_DECLS
#define GDK_IS_X11_SELECTION_OUTPUT_STREAM_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), GDK_TYPE_X11_SELECTION_OUTPUT_STREAM))
#define GDK_X11_SELECTION_OUTPUT_STREAM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), GDK_TYPE_X11_SELECTION_OUTPUT_STREAM, GdkX11SelectionOutputStreamClass))
typedef struct _GdkX11PendingSelectionNotify GdkX11PendingSelectionNotify;
typedef struct GdkX11SelectionOutputStream GdkX11SelectionOutputStream;
typedef struct GdkX11SelectionOutputStreamClass GdkX11SelectionOutputStreamClass;
typedef void (* GdkX11SelectionOutputHandler) (GOutputStream *stream, const char *mime_type, gpointer user_data);
struct GdkX11SelectionOutputStream
{
GOutputStream parent_instance;
@ -54,27 +54,15 @@ struct GdkX11SelectionOutputStreamClass
GType gdk_x11_selection_output_stream_get_type (void) G_GNUC_CONST;
GOutputStream * gdk_x11_selection_output_stream_new (GdkDisplay *display,
GdkX11PendingSelectionNotify *notify,
Window window,
const char *selection,
const char *target,
const char *property,
const char *type,
int format,
gulong timestamp);
GdkX11PendingSelectionNotify *
gdk_x11_pending_selection_notify_new (Window window,
void gdk_x11_selection_output_streams_create (GdkDisplay *display,
GdkContentFormats *formats,
Window requestor,
Atom selection,
Atom target,
Atom property,
Time timestamp);
void gdk_x11_pending_selection_notify_require (GdkX11PendingSelectionNotify *notify,
guint n_sends);
void gdk_x11_pending_selection_notify_send (GdkX11PendingSelectionNotify *notify,
GdkDisplay *display,
gboolean success);
gulong timestamp,
GdkX11SelectionOutputHandler handler,
gpointer user_data);
G_END_DECLS