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compositor: split drag surface update into smaller functions

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This commit is contained in:
Ander Conselvan de Oliveira 2012-03-01 14:09:44 +02:00 committed by Kristian Høgsberg
parent c5fb9a7de9
commit 3e3bb3216e
1 changed files with 42 additions and 16 deletions
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58
src/compositor.c
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@ -1897,6 +1897,42 @@ weston_input_device_release(struct weston_input_device *device)
wl_input_device_release(&device->input_device);
}
static void
device_setup_new_drag_surface(struct weston_input_device *device,
struct weston_surface *surface)
{
struct wl_input_device *input_device = &device->input_device;
device->drag_surface = surface;
weston_surface_set_position(device->drag_surface,
input_device->x, input_device->y);
wl_list_insert(surface->surface.resource.destroy_listener_list.prev,
&device->drag_surface_destroy_listener.link);
}
static void
device_release_drag_surface(struct weston_input_device *device)
{
undef_region(&device->drag_surface->input);
wl_list_remove(&device->drag_surface_destroy_listener.link);
device->drag_surface = NULL;
}
static void
device_map_drag_surface(struct weston_input_device *device)
{
if (device->drag_surface->output ||
!device->drag_surface->buffer)
return;
wl_list_insert(&device->sprite->layer_link,
&device->drag_surface->layer_link);
weston_surface_assign_output(device->drag_surface);
empty_region(&device->drag_surface->input);
}
static void
weston_input_update_drag_surface(struct wl_input_device *input_device,
int dx, int dy)
@ -1915,30 +1951,20 @@ weston_input_update_drag_surface(struct wl_input_device *input_device,
surface_changed = 1;
if (!input_device->drag_surface || surface_changed) {
undef_region(&device->drag_surface->input);
wl_list_remove(&device->drag_surface_destroy_listener.link);
device->drag_surface = NULL;
device_release_drag_surface(device);
if (!surface_changed)
return;
}
if (!device->drag_surface || surface_changed) {
device->drag_surface = (struct weston_surface *)
struct weston_surface *surface = (struct weston_surface *)
input_device->drag_surface;
weston_surface_set_position(device->drag_surface,
input_device->x, input_device->y);
wl_list_insert(device->drag_surface->surface.resource.destroy_listener_list.prev,
&device->drag_surface_destroy_listener.link);
device_setup_new_drag_surface(device, surface);
}
if (device->drag_surface->output == NULL &&
device->drag_surface->buffer) {
wl_list_insert(&device->sprite->layer_link,
&device->drag_surface->layer_link);
weston_surface_assign_output(device->drag_surface);
empty_region(&device->drag_surface->input);
}
/* the client may not have attached a buffer to the drag surface
* when we setup it up, so check if map is needed on every update */
device_map_drag_surface(device);
/* the client may have attached a buffer with a different size to
* the drag surface, causing the input region to be reset */