Kristian Høgsberg
13 years ago
parent
afa264c6b6
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0704539ec4
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/*
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* Copyright © 2011 Intel Corporation |
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* |
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* Permission to use, copy, modify, distribute, and sell this software and its |
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* documentation for any purpose is hereby granted without fee, provided that |
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* the above copyright notice appear in all copies and that both that copyright |
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* notice and this permission notice appear in supporting documentation, and |
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* that the name of the copyright holders not be used in advertising or |
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* publicity pertaining to distribution of the software without specific, |
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* written prior permission. The copyright holders make no representations |
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* about the suitability of this software for any purpose. It is provided "as |
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* is" without express or implied warranty. |
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* |
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
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* OF THIS SOFTWARE. |
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*/ |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <linux/input.h> |
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#include "compositor.h" |
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struct weston_switcher { |
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struct weston_compositor *compositor; |
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struct weston_surface *current; |
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struct wl_listener listener; |
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}; |
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static void |
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weston_switcher_next(struct weston_switcher *switcher) |
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{ |
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struct wl_list *l; |
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struct wl_surface *current; |
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weston_surface_damage(switcher->current); |
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l = switcher->current->link.next; |
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if (l == &switcher->compositor->surface_list) |
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l = switcher->compositor->surface_list.next; |
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switcher->current = container_of(l, struct weston_surface, link); |
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wl_list_remove(&switcher->listener.link); |
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current = &switcher->current->surface; |
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wl_list_insert(current->resource.destroy_listener_list.prev, |
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&switcher->listener.link); |
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switcher->compositor->overlay = switcher->current; |
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weston_surface_damage(switcher->current); |
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} |
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static void |
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switcher_handle_surface_destroy(struct wl_listener *listener, |
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struct wl_resource *resource, uint32_t time) |
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{ |
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struct weston_switcher *switcher = |
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container_of(listener, struct weston_switcher, listener); |
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weston_switcher_next(switcher); |
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} |
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static struct weston_switcher * |
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weston_switcher_create(struct weston_compositor *compositor) |
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{ |
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struct weston_switcher *switcher; |
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switcher = malloc(sizeof *switcher); |
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switcher->compositor = compositor; |
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switcher->current = container_of(compositor->surface_list.next, |
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struct weston_surface, link); |
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switcher->listener.func = switcher_handle_surface_destroy; |
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wl_list_init(&switcher->listener.link); |
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return switcher; |
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} |
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static void |
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weston_switcher_destroy(struct weston_switcher *switcher) |
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{ |
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wl_list_remove(&switcher->listener.link); |
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free(switcher); |
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} |
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static void |
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switcher_next_binding(struct wl_input_device *device, uint32_t time, |
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uint32_t key, uint32_t button, |
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uint32_t state, void *data) |
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{ |
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struct weston_compositor *compositor = data; |
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if (!state) |
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return; |
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if (wl_list_empty(&compositor->surface_list)) |
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return; |
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if (compositor->switcher == NULL) |
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compositor->switcher = weston_switcher_create(compositor); |
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weston_switcher_next(compositor->switcher); |
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} |
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static void |
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switcher_terminate_binding(struct wl_input_device *device, |
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uint32_t time, uint32_t key, uint32_t button, |
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uint32_t state, void *data) |
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{ |
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struct weston_compositor *compositor = data; |
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struct weston_input_device *wd = (struct weston_input_device *) device; |
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if (compositor->switcher && !state) { |
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weston_surface_activate(compositor->switcher->current, wd, time); |
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weston_switcher_destroy(compositor->switcher); |
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compositor->switcher = NULL; |
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compositor->overlay = NULL; |
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} |
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} |
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void |
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weston_switcher_init(struct weston_compositor *compositor) |
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{ |
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weston_compositor_add_binding(compositor, |
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KEY_TAB, 0, MODIFIER_SUPER, |
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switcher_next_binding, compositor); |
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weston_compositor_add_binding(compositor, |
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KEY_LEFTMETA, 0, MODIFIER_SUPER, |
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switcher_terminate_binding, compositor); |
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weston_compositor_add_binding(compositor, |
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KEY_RIGHTMETA, 0, MODIFIER_SUPER, |
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switcher_terminate_binding, compositor); |
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} |
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