weston/src/switcher.c
Kristian Høgsberg 8334bc1ef9 Rename wayland-compositor to weston
This rename addresses a few problems around the split between core
Wayland and the wayland-demos repository.

1) Initially, we had one big repository with protocol code, sample
compositor and sample clients.  We split that repository to make it
possible to implement the protocol without pulling in the sample/demo
code.  At this point, the compositor is more than just a "demo" and
wayland-demos doesn't send the right message.  The sample compositor
is a useful, self-contained project in it's own right, and we want to
move away from the "demos" label.

2) Another problem is that the wayland-demos compositor is often
called "the wayland compsitor", but it's really just one possible
compositor.  Existing X11 compositors are expected to add Wayland
support and then gradually phase out/modularize the X11 support, for
example.  Conversely, it's hard to talk about the wayland-demos
compositor specifically as opposed to, eg, the wayland protocol or a
wayland compositor in general.

We are also renaming the repo to weston, and the compositor
subdirectory to src/, to emphasize that the main "output" is the
compositor.
2012-01-03 11:04:04 -05:00

131 lines
4.2 KiB
C

/*
* Copyright © 2011 Intel Corporation
*
* 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 <stdio.h>
#include <linux/input.h>
#include "compositor.h"
struct weston_switcher {
struct weston_compositor *compositor;
struct weston_surface *current;
struct wl_listener listener;
};
static void
weston_switcher_next(struct weston_switcher *switcher)
{
struct wl_list *l;
struct wl_surface *current;
weston_surface_damage(switcher->current);
l = switcher->current->link.next;
if (l == &switcher->compositor->surface_list)
l = switcher->compositor->surface_list.next;
switcher->current = container_of(l, struct weston_surface, link);
wl_list_remove(&switcher->listener.link);
current = &switcher->current->surface;
wl_list_insert(current->resource.destroy_listener_list.prev,
&switcher->listener.link);
switcher->compositor->overlay = switcher->current;
weston_surface_damage(switcher->current);
}
static void
switcher_handle_surface_destroy(struct wl_listener *listener,
struct wl_resource *resource, uint32_t time)
{
struct weston_switcher *switcher =
container_of(listener, struct weston_switcher, listener);
weston_switcher_next(switcher);
}
static struct weston_switcher *
weston_switcher_create(struct weston_compositor *compositor)
{
struct weston_switcher *switcher;
switcher = malloc(sizeof *switcher);
switcher->compositor = compositor;
switcher->current = container_of(compositor->surface_list.next,
struct weston_surface, link);
switcher->listener.func = switcher_handle_surface_destroy;
wl_list_init(&switcher->listener.link);
return switcher;
}
static void
weston_switcher_destroy(struct weston_switcher *switcher)
{
wl_list_remove(&switcher->listener.link);
free(switcher);
}
static void
switcher_next_binding(struct wl_input_device *device, uint32_t time,
uint32_t key, uint32_t button,
uint32_t state, void *data)
{
struct weston_compositor *compositor = data;
if (!state)
return;
if (wl_list_empty(&compositor->surface_list))
return;
if (compositor->switcher == NULL)
compositor->switcher = weston_switcher_create(compositor);
weston_switcher_next(compositor->switcher);
}
static void
switcher_terminate_binding(struct wl_input_device *device,
uint32_t time, uint32_t key, uint32_t button,
uint32_t state, void *data)
{
struct weston_compositor *compositor = data;
struct weston_input_device *wd = (struct weston_input_device *) device;
if (compositor->switcher && !state) {
weston_surface_activate(compositor->switcher->current, wd, time);
weston_switcher_destroy(compositor->switcher);
compositor->switcher = NULL;
compositor->overlay = NULL;
}
}
void
weston_switcher_init(struct weston_compositor *compositor)
{
weston_compositor_add_binding(compositor,
KEY_TAB, 0, MODIFIER_SUPER,
switcher_next_binding, compositor);
weston_compositor_add_binding(compositor,
KEY_LEFTMETA, 0, MODIFIER_SUPER,
switcher_terminate_binding, compositor);
weston_compositor_add_binding(compositor,
KEY_RIGHTMETA, 0, MODIFIER_SUPER,
switcher_terminate_binding, compositor);
}