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compositor: Send out touch events accordingly

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Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
This commit is contained in:
Tiago Vignatti 2011-12-21 19:34:10 +02:00 committed by Kristian Høgsberg
parent 22c6bcec9c
commit 1f221fff71
2 changed files with 91 additions and 0 deletions
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87
compositor/compositor.c
View file

@ -1437,17 +1437,103 @@ notify_keyboard_focus(struct wl_input_device *device,
}
}
/* TODO: share this function with wayland-server.c */
static struct wl_resource *
find_resource_for_surface(struct wl_list *list, struct wl_surface *surface)
{
struct wl_resource *r;
if (!surface)
return NULL;
wl_list_for_each(r, list, link) {
if (r->client == surface->resource.client)
return r;
}
return NULL;
}
static void
touch_set_focus(struct wlsc_input_device *device,
struct wl_surface *surface, uint32_t time)
{
struct wl_input_device *input_device = &device->input_device;
struct wl_resource *resource;
if (device->touch_focus == surface)
return;
resource = find_resource_for_surface(&input_device->resource_list,
surface);
if (!resource) {
fprintf(stderr, "couldn't find resource\n");
return;
}
device->touch_focus = surface;
device->touch_focus_resource = resource;
}
/**
* notify_touch - emulates button touches and notifies surfaces accordingly.
*
* It assumes always the correct cycle sequence until it gets here: touch_down
* → touch_update → ... → touch_update → touch_end. The driver is responsible
* for sending along such order.
*
*/
WL_EXPORT void
notify_touch(struct wl_input_device *device, uint32_t time, int touch_id,
int x, int y, int touch_type)
{
struct wlsc_input_device *wd = (struct wlsc_input_device *) device;
struct wlsc_compositor *ec = wd->compositor;
struct wlsc_surface *es;
int32_t sx, sy;
switch (touch_type) {
case WL_INPUT_DEVICE_TOUCH_DOWN:
wlsc_compositor_idle_inhibit(ec);
wd->num_tp++;
/* the first finger down picks the surface, and all further go
* to that surface for the remainder of the touch session i.e.
* until all touch points are up again. */
if (wd->num_tp == 1) {
es = wlsc_compositor_pick_surface(ec, x, y, &sx, &sy);
touch_set_focus(wd, &es->surface, time);
} else {
es = (struct wlsc_surface *) wd->touch_focus;
wlsc_surface_transform(es, x, y, &sx, &sy);
}
if (wd->touch_focus_resource)
wl_resource_post_event(wd->touch_focus_resource,
touch_type, time,
wd->touch_focus,
touch_id, sx, sy);
break;
case WL_INPUT_DEVICE_TOUCH_MOTION:
es = (struct wlsc_surface *) wd->touch_focus;
wlsc_surface_transform(es, x, y, &sx, &sy);
if (wd->touch_focus_resource)
wl_resource_post_event(wd->touch_focus_resource,
touch_type, time, touch_id, sx, sy);
break;
case WL_INPUT_DEVICE_TOUCH_UP:
wlsc_compositor_idle_release(ec);
wd->num_tp--;
if (wd->num_tp == 0) {
wd->touch_focus = NULL;
wd->touch_focus_resource = NULL;
}
if (wd->touch_focus_resource)
wl_resource_post_event(wd->touch_focus_resource,
touch_type, time, touch_id);
break;
}
}
static void
@ -1536,6 +1622,7 @@ wlsc_input_device_init(struct wlsc_input_device *device,
device->hotspot_x = 16;
device->hotspot_y = 16;
device->modifier_state = 0;
device->num_tp = 0;
device->input_device.implicit_grab.interface = &implicit_grab_interface;

4
compositor/compositor.h
View file

@ -114,6 +114,10 @@ struct wlsc_input_device {
struct wlsc_data_source *selection_data_source;
struct wl_listener selection_data_source_listener;
struct wl_grab grab;
uint32_t num_tp;
struct wl_surface *touch_focus;
struct wl_resource *touch_focus_resource;
};
enum wlsc_visual {