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/*
* Copyright © 2012 Collabora Ltd.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include "compositor.h"
#include "pointer-tracking-server-protocol.h"
struct pointer_tracking_surface {
struct wl_resource *resource;
struct weston_surface *surface;
struct wl_list link;
};
static void
pointer_tracking_surface_destroy(struct pointer_tracking_surface *pts)
{
pts->resource = NULL;
pts->surface = NULL;
wl_list_remove(&pts->link);
free(pts);
}
struct pointer_tracking {
struct wl_object base;
struct weston_compositor *ec;
struct wl_global *global;
struct wl_list surfaces;
};
static void
pointer_track_relative_to(struct wl_client *client,
struct wl_resource *resource,
struct wl_resource *surface_resource)
{
struct pointer_tracking *pt = resource->data;
struct weston_surface *surface = surface_resource->data;
struct pointer_tracking_surface *pts;
pts = malloc(sizeof *pts);
pts->resource = resource;
pts->surface = surface;
wl_list_insert(&pt->surfaces, &pts->link);
}
static struct pointer_tracking_interface pointer_tracking_implementation = {
pointer_track_relative_to
};
static void
unbind_pointer_tracking(struct wl_resource *resource)
{
struct pointer_tracking *pt = resource->data;
struct pointer_tracking_surface *pts, *tmp;
wl_list_for_each_safe(pts, tmp, &pt->surfaces, link) {
if (pts->resource == resource) {
pointer_tracking_surface_destroy(pts);
}
}
}
static void
bind_pointer_tracking(struct wl_client *client,
void *data, uint32_t version, uint32_t id)
{
struct wl_resource *resource;
resource = wl_client_add_object(client, &pointer_tracking_interface,
&pointer_tracking_implementation,
id, data);
resource->destroy = unbind_pointer_tracking;
}
struct pointer_tracking *
pointer_tracking_create(struct weston_compositor *ec)
{
struct pointer_tracking *pt;
pt = malloc(sizeof *pt);
if (pt == NULL)
return NULL;
pt->base.interface = &pointer_tracking_interface;
pt->base.implementation = NULL;
pt->ec = ec;
wl_list_init(&pt->surfaces);
pt->global = wl_display_add_global(ec->wl_display,
&pointer_tracking_interface,
pt,
bind_pointer_tracking);
return pt;
}
void
pointer_tracking_push(struct pointer_tracking *pt, int32_t x, int32_t y)
{
struct pointer_tracking_surface *pts;
wl_list_for_each(pts, &pt->surfaces, link) {
int32_t sx, sy;
weston_surface_from_global(pts->surface, x, y, &sx, &sy);
pointer_tracking_send_pointer_moved(pts->resource, sx, sy);
}
}
void
pointer_tracking_destroy(struct pointer_tracking *pt)
{
struct pointer_tracking_surface *pts, *tmp;
wl_list_for_each_safe(pts, tmp, &pt->surfaces, link) {
pointer_tracking_surface_destroy(pts);
}
wl_display_remove_global(pt->ec->wl_display, pt->global);
free(pt);
}
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