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x11: Implement INCR reads

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This commit is contained in:
Benjamin Otte 2017-11-19 20:52:36 +01:00
parent fe9045d82e
commit 13fb3fd4a0
1 changed files with 37 additions and 18 deletions
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55
gdk/x11/gdkselectioninputstream-x11.c
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@ -46,6 +46,7 @@ struct GdkX11SelectionInputStreamPrivate {
gsize pending_size;
guint complete : 1;
guint incr : 1;
};
G_DEFINE_TYPE_WITH_PRIVATE (GdkX11SelectionInputStream, gdk_x11_selection_input_stream, G_TYPE_INPUT_STREAM);
@ -340,33 +341,50 @@ gdk_x11_selection_input_stream_filter_event (GdkXEvent *xev,
XEvent *xevent = xev;
Display *xdisplay;
Window xwindow;
#if 0
GList *tmp_list;
GtkRetrievalInfo *info = NULL;
GdkWindow *window;
GBytes *bytes;
gint length;
GdkAtom type;
GdkAtom selection;
GdkAtom property;
gint format;
guint32 time;
#endif
Atom type;
gint format;
xdisplay = gdk_x11_display_get_xdisplay (priv->display);
xwindow = GDK_X11_DISPLAY (priv->display)->leader_window;
if (xevent->xany.window != xwindow)
if (xevent->xany.display != xdisplay ||
xevent->xany.window != xwindow)
return GDK_FILTER_CONTINUE;
switch (xevent->type)
{
case PropertyNotify:
if (!priv->incr ||
xevent->xproperty.atom != priv->xproperty ||
xevent->xproperty.state != PropertyNewValue)
return GDK_FILTER_CONTINUE;
GDK_NOTE(SELECTION, g_printerr ("%s:%s: got PropertyNotify durin INCR\n", priv->selection, priv->target));
bytes = get_selection_property (xdisplay, xwindow, xevent->xproperty.atom, &type, &format);
if (bytes == NULL)
{
/* error, should we signal one? */
gdk_x11_selection_input_stream_complete (stream);
}
else if (g_bytes_get_size (bytes) == 0 || type == None)
{
g_bytes_unref (bytes);
gdk_x11_selection_input_stream_complete (stream);
}
else
{
g_queue_push_tail (&priv->chunks, bytes);
gdk_x11_selection_input_stream_flush (stream);
}
XDeleteProperty (xdisplay, xwindow, xevent->xproperty.atom);
return GDK_FILTER_CONTINUE;
case SelectionNotify:
{
GBytes *bytes;
Atom type;
gint format;
if (priv->xselection != xevent->xselection.selection ||
priv->xtarget != xevent->xselection.target)
@ -385,17 +403,18 @@ gdk_x11_selection_input_stream_filter_event (GdkXEvent *xev,
}
else
{
g_queue_push_tail (&priv->chunks, bytes);
if (type == gdk_x11_get_xatom_by_name_for_display (priv->display, "INCR"))
{
/* The remainder of the selection will come through PropertyNotify
events on xwindow */
GDK_NOTE(SELECTION, g_print ("%s:%s: initiating INCR transfer\n", priv->selection, priv->target));
priv->incr = TRUE;
gdk_x11_selection_input_stream_flush (stream);
}
else
{
g_queue_push_tail (&priv->chunks, bytes);
gdk_x11_selection_input_stream_complete (stream);
}