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wayland: Add dummy implementation of the wl_data_device functionality

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Setup listener functions for the drag and drop events as well as the selection
events. Then create and save a data structure representing the data offer from
the other client.
This commit is contained in:
Rob Bradford
2011-12-14 13:11:18 +00:00
parent 55b2286c3e
commit 8c1f8c0668
1 changed files with 159 additions and 0 deletions
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159
gdk/wayland/gdkdevice-wayland.c
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@ -43,6 +43,8 @@ typedef struct _GdkDeviceCore GdkDeviceCore;
typedef struct _GdkDeviceCoreClass GdkDeviceCoreClass;
typedef struct _GdkWaylandDevice GdkWaylandDevice;
typedef struct _DataOffer DataOffer;
struct _GdkWaylandDevice
{
GdkDisplay *display;
@ -55,6 +57,9 @@ struct _GdkWaylandDevice
struct wl_data_device *data_device;
int32_t x, y, surface_x, surface_y;
uint32_t time;
DataOffer *drag_offer;
DataOffer *selection_offer;
};
struct _GdkDeviceCore
@ -596,6 +601,158 @@ static const struct wl_input_device_listener input_device_listener = {
input_handle_keyboard_focus,
};
struct _DataOffer {
struct wl_data_offer *offer;
gint ref_count;
GPtrArray *types;
};
static void
data_offer_offer (void *data,
struct wl_data_offer *wl_data_offer,
const char *type)
{
DataOffer *offer = (DataOffer *)data;
g_debug (G_STRLOC ": %s wl_data_offer = %p type = %s",
G_STRFUNC, wl_data_offer, type);
g_ptr_array_add (offer->types, g_strdup (type));
}
static void
data_offer_unref (DataOffer *offer)
{
offer->ref_count--;
if (offer->ref_count == 0)
{
g_ptr_array_free (offer->types, TRUE);
g_free (offer);
}
}
static const struct wl_data_offer_listener data_offer_listener = {
data_offer_offer,
};
static void
data_device_data_offer (void *data,
struct wl_data_device *data_device,
uint32_t id)
{
DataOffer *offer;
g_debug (G_STRLOC ": %s data_device = %p id = %lu",
G_STRFUNC, data_device, (long unsigned int)id);
/* This structure is reference counted to handle the case where you get a
* leave but are in the middle of transferring data
*/
offer = g_new0 (DataOffer, 1);
offer->ref_count = 1;
offer->types = g_ptr_array_new_with_free_func (g_free);
offer->offer = (struct wl_data_offer *)
wl_proxy_create_for_id ((struct wl_proxy *) data_device,
id,
&wl_data_offer_interface);
/* The DataOffer structure is then retrieved later since this sets the user
* data.
*/
wl_data_offer_add_listener (offer->offer,
&data_offer_listener,
offer);
}
static void
data_device_enter (void *data,
struct wl_data_device *data_device,
uint32_t time,
struct wl_surface *surface,
int32_t x,
int32_t y,
struct wl_data_offer *offer)
{
GdkWaylandDevice *device = (GdkWaylandDevice *)data;
g_debug (G_STRLOC ": %s data_device = %p time = %d, surface = %p, x = %d y = %d, offer = %p",
G_STRFUNC, data_device, time, surface, x, y, offer);
/* Retrieve the DataOffer associated with with the wl_data_offer - this
* association is made when the listener is attached.
*/
g_assert (device->drag_offer == NULL);
device->drag_offer = wl_data_offer_get_user_data (offer);
}
static void
data_device_leave (void *data,
struct wl_data_device *data_device)
{
GdkWaylandDevice *device = (GdkWaylandDevice *)data;
g_debug (G_STRLOC ": %s data_device = %p",
G_STRFUNC, data_device);
data_offer_unref (device->drag_offer);
device->drag_offer = NULL;
}
static void
data_device_motion (void *data,
struct wl_data_device *data_device,
uint32_t time,
int32_t x,
int32_t y)
{
g_debug (G_STRLOC ": %s data_device = %p, time = %d, x = %d, y = %d",
G_STRFUNC, data_device, time, x, y);
}
static void
data_device_drop (void *data,
struct wl_data_device *data_device)
{
g_debug (G_STRLOC ": %s data_device = %p",
G_STRFUNC, data_device);
}
static void
data_device_selection (void *data,
struct wl_data_device *wl_data_device,
struct wl_data_offer *offer)
{
GdkWaylandDevice *device = (GdkWaylandDevice *)data;
GdkDeviceManager *device_manager =
gdk_display_get_device_manager (device->display);
GdkDeviceManagerCore *device_manager_core =
GDK_DEVICE_MANAGER_CORE (device_manager);
g_debug (G_STRLOC ": %s wl_data_device = %p wl_data_offer = %p",
G_STRFUNC, wl_data_device, offer);
if (device->selection_offer)
{
data_offer_unref (device->selection_offer);
device->selection_offer = NULL;
}
/* Retrieve the DataOffer associated with with the wl_data_offer - this
* association is made when the listener is attached.
*/
g_assert (device->selection_offer == NULL);
device->selection_offer = wl_data_offer_get_user_data (offer);
}
static const struct wl_data_device_listener data_device_listener = {
data_device_data_offer,
data_device_enter,
data_device_leave,
data_device_motion,
data_device_drop,
data_device_selection
};
void
_gdk_wayland_device_manager_add_device (GdkDeviceManager *device_manager,
struct wl_input_device *wl_device)
@ -641,6 +798,8 @@ _gdk_wayland_device_manager_add_device (GdkDeviceManager *device_manager,
device->data_device =
wl_data_device_manager_get_data_device (display_wayland->data_device_manager,
device->device);
wl_data_device_add_listener (device->data_device,
&data_device_listener, device);
device_manager_core->devices =
g_list_prepend (device_manager_core->devices, device->keyboard);