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data-device: Record the serial number for the current selection

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And reject setting a selection that's older than our current selection.
This commit is contained in:
Kristian Høgsberg 2012-04-13 12:48:38 -04:00
parent 74aec06625
commit a9f951b003
2 changed files with 10 additions and 3 deletions
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10
src/data-device.c
View file

@ -347,10 +347,14 @@ destroy_selection_data_source(struct wl_listener *listener, void *data)
WL_EXPORT void WL_EXPORT void
wl_input_device_set_selection(struct wl_input_device *device, wl_input_device_set_selection(struct wl_input_device *device,
struct wl_data_source *source) struct wl_data_source *source, uint32_t serial)
{ {
struct wl_resource *data_device, *focus, *offer; struct wl_resource *data_device, *focus, *offer;
if (device->selection_data_source &&
device->selection_serial - serial < UINT32_MAX / 2)
return;
if (device->selection_data_source) { if (device->selection_data_source) {
device->selection_data_source->cancel(device->selection_data_source); device->selection_data_source->cancel(device->selection_data_source);
wl_list_remove(&device->selection_data_source_listener.link); wl_list_remove(&device->selection_data_source_listener.link);
@ -358,6 +362,7 @@ wl_input_device_set_selection(struct wl_input_device *device,
} }
device->selection_data_source = source; device->selection_data_source = source;
device->selection_serial = serial;
focus = device->keyboard_focus_resource; focus = device->keyboard_focus_resource;
if (focus) { if (focus) {
@ -387,7 +392,8 @@ data_device_set_selection(struct wl_client *client,
return; return;
/* FIXME: Store serial and check against incoming serial here. */ /* FIXME: Store serial and check against incoming serial here. */
wl_input_device_set_selection(resource->data, source_resource->data); wl_input_device_set_selection(resource->data, source_resource->data,
serial);
} }
static const struct wl_data_device_interface data_device_interface = { static const struct wl_data_device_interface data_device_interface = {

3
src/wayland-server.h
View file

@ -266,6 +266,7 @@ struct wl_input_device {
struct wl_listener drag_icon_listener; struct wl_listener drag_icon_listener;
struct wl_signal drag_icon_signal; struct wl_signal drag_icon_signal;
uint32_t selection_serial;
struct wl_data_source *selection_data_source; struct wl_data_source *selection_data_source;
struct wl_listener selection_data_source_listener; struct wl_listener selection_data_source_listener;
struct wl_signal selection_signal; struct wl_signal selection_signal;
@ -343,7 +344,7 @@ wl_input_device_end_pointer_grab(struct wl_input_device *device);
void void
wl_input_device_set_selection(struct wl_input_device *device, wl_input_device_set_selection(struct wl_input_device *device,
struct wl_data_source *source); struct wl_data_source *source, uint32_t serial);
void * void *