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x11: Implement MULTIPLE requests

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This commit is contained in:
Benjamin Otte 2017-12-01 06:06:53 +01:00
parent 3ea258de26
commit b75546d0fb
1 changed files with 94 additions and 2 deletions
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96
gdk/x11/gdkclipboard-x11.c
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@ -477,7 +477,7 @@ gdk_x11_clipboard_claim_remote (GdkX11Clipboard *cb,
gdk_x11_clipboard_request_targets (cb);
}
static void
static gboolean
gdk_x11_clipboard_request_selection (GdkX11Clipboard *cb,
GdkX11PendingSelectionNotify *notify,
Window requestor,
@ -508,8 +508,99 @@ gdk_x11_clipboard_request_selection (GdkX11Clipboard *cb,
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++)
@ -535,12 +626,13 @@ gdk_x11_clipboard_request_selection (GdkX11Clipboard *cb,
special_targets[i].type,
special_targets[i].format,
stream);
return;
return TRUE;
}
}
}
gdk_x11_pending_selection_notify_send (notify, display, FALSE);
return FALSE;
}
static GdkFilterReturn