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https://gitlab.freedesktop.org/wayland/weston
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shell: Animate workspace changes
Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
This commit is contained in:
Jonas Ådahl
Kristian Høgsberg
parent
e3cddce5a6
commit
62fcd0417e
245
src/shell.c
245
src/shell.c
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@ -39,6 +39,7 @@
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#include "log.h"
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#define DEFAULT_NUM_WORKSPACES 1
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#define DEFAULT_WORKSPACE_CHANGE_ANIMATION_LENGTH 200
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enum animation_type {
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ANIMATION_NONE,
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@ -88,6 +89,13 @@ struct desktop_shell {
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struct wl_array array;
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unsigned int current;
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unsigned int num;
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struct weston_animation animation;
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int anim_dir;
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uint32_t anim_timestamp;
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double anim_current;
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struct workspace *anim_from;
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struct workspace *anim_to;
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} workspaces;
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struct {
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@ -166,6 +174,8 @@ struct shell_surface {
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struct ping_timer *ping_timer;
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struct weston_transform workspace_transform;
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struct weston_output *fullscreen_output;
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struct weston_output *output;
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struct wl_list link;
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@ -337,6 +347,12 @@ workspace_create(void)
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return ws;
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}
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static int
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workspace_is_empty(struct workspace *ws)
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{
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return wl_list_empty(&ws->layer.surface_list);
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}
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static struct workspace *
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get_workspace(struct desktop_shell *shell, unsigned int index)
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{
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@ -362,6 +378,209 @@ activate_workspace(struct desktop_shell *shell, unsigned int index)
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shell->workspaces.current = index;
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}
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static unsigned int
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get_output_height(struct weston_output *output)
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{
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return abs(output->region.extents.y1 - output->region.extents.y2);
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}
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static void
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surface_translate(struct weston_surface *surface, double d)
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{
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struct shell_surface *shsurf = get_shell_surface(surface);
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struct weston_transform *transform;
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transform = &shsurf->workspace_transform;
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if (wl_list_empty(&transform->link))
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wl_list_insert(surface->geometry.transformation_list.prev,
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&shsurf->workspace_transform.link);
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weston_matrix_init(&shsurf->workspace_transform.matrix);
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weston_matrix_translate(&shsurf->workspace_transform.matrix,
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0.0, d, 0.0);
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surface->geometry.dirty = 1;
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}
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static void
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workspace_translate_out(struct workspace *ws, double fraction)
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{
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struct weston_surface *surface;
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unsigned int height;
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double d;
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wl_list_for_each(surface, &ws->layer.surface_list, layer_link) {
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height = get_output_height(surface->output);
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d = height * fraction;
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surface_translate(surface, d);
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}
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}
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static void
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workspace_translate_in(struct workspace *ws, double fraction)
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{
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struct weston_surface *surface;
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unsigned int height;
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double d;
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wl_list_for_each(surface, &ws->layer.surface_list, layer_link) {
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height = get_output_height(surface->output);
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if (fraction > 0)
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d = -(height - height * fraction);
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else
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d = height + height * fraction;
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surface_translate(surface, d);
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}
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}
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static void
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workspace_damage_all_surfaces(struct workspace *ws)
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{
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struct weston_surface *surface;
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wl_list_for_each(surface, &ws->layer.surface_list, layer_link)
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weston_surface_damage(surface);
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}
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static void
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reverse_workspace_change_animation(struct desktop_shell *shell,
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unsigned int index,
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struct workspace *from,
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struct workspace *to)
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{
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shell->workspaces.current = index;
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shell->workspaces.anim_to = to;
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shell->workspaces.anim_from = from;
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shell->workspaces.anim_dir = -1 * shell->workspaces.anim_dir;
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shell->workspaces.anim_timestamp = 0;
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workspace_damage_all_surfaces(from);
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workspace_damage_all_surfaces(to);
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}
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static void
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workspace_deactivate_transforms(struct workspace *ws)
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{
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struct weston_surface *surface;
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struct shell_surface *shsurf;
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wl_list_for_each(surface, &ws->layer.surface_list, layer_link) {
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shsurf = get_shell_surface(surface);
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wl_list_remove(&shsurf->workspace_transform.link);
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wl_list_init(&shsurf->workspace_transform.link);
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shsurf->surface->geometry.dirty = 1;
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}
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}
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static void
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finish_workspace_change_animation(struct desktop_shell *shell,
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struct workspace *from,
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struct workspace *to)
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{
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workspace_damage_all_surfaces(from);
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workspace_damage_all_surfaces(to);
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wl_list_remove(&shell->workspaces.animation.link);
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workspace_deactivate_transforms(from);
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workspace_deactivate_transforms(to);
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shell->workspaces.anim_to = NULL;
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wl_list_remove(&shell->workspaces.anim_from->layer.link);
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}
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static void
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animate_workspace_change_frame(struct weston_animation *animation,
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struct weston_output *output, uint32_t msecs)
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{
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struct desktop_shell *shell =
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container_of(animation, struct desktop_shell,
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workspaces.animation);
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struct workspace *from = shell->workspaces.anim_from;
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struct workspace *to = shell->workspaces.anim_to;
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uint32_t t;
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double x, y;
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if (workspace_is_empty(from) && workspace_is_empty(to)) {
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finish_workspace_change_animation(shell, from, to);
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return;
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}
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if (shell->workspaces.anim_timestamp == 0) {
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if (shell->workspaces.anim_current == 0.0)
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shell->workspaces.anim_timestamp = msecs;
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else
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shell->workspaces.anim_timestamp =
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msecs -
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/* Invers of movement function 'y' below. */
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(asin(1.0 - shell->workspaces.anim_current) *
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DEFAULT_WORKSPACE_CHANGE_ANIMATION_LENGTH *
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M_2_PI);
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}
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t = msecs - shell->workspaces.anim_timestamp;
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/*
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* x = [0, π/2]
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* y(x) = sin(x)
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*/
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x = t * (1.0/DEFAULT_WORKSPACE_CHANGE_ANIMATION_LENGTH) * M_PI_2;
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y = sin(x);
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if (t < DEFAULT_WORKSPACE_CHANGE_ANIMATION_LENGTH) {
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workspace_damage_all_surfaces(from);
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workspace_damage_all_surfaces(to);
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workspace_translate_out(from, shell->workspaces.anim_dir * y);
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workspace_translate_in(to, shell->workspaces.anim_dir * y);
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shell->workspaces.anim_current = y;
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workspace_damage_all_surfaces(from);
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workspace_damage_all_surfaces(to);
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}
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else {
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finish_workspace_change_animation(shell, from, to);
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}
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}
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static void
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animate_workspace_change(struct desktop_shell *shell,
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unsigned int index,
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struct workspace *from,
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struct workspace *to)
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{
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struct weston_output *output;
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int dir;
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if (index > shell->workspaces.current)
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dir = -1;
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else
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dir = 1;
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shell->workspaces.current = index;
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shell->workspaces.anim_dir = dir;
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shell->workspaces.anim_from = from;
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shell->workspaces.anim_to = to;
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shell->workspaces.anim_current = 0.0;
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shell->workspaces.anim_timestamp = 0;
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output = container_of(shell->compositor->output_list.next,
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struct weston_output, link);
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wl_list_insert(&output->animation_list,
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&shell->workspaces.animation.link);
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wl_list_insert(&from->layer.link, &to->layer.link);
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workspace_translate_in(to, 0);
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workspace_damage_all_surfaces(from);
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workspace_damage_all_surfaces(to);
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}
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static void
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change_workspace(struct desktop_shell *shell, unsigned int index)
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{
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@ -384,11 +603,24 @@ change_workspace(struct desktop_shell *shell, unsigned int index)
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from = get_current_workspace(shell);
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to = get_workspace(shell, index);
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shell->workspaces.current = index;
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wl_list_insert(&from->layer.link, &to->layer.link);
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wl_list_remove(&from->layer.link);
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if (shell->workspaces.anim_from == to &&
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shell->workspaces.anim_to == from) {
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reverse_workspace_change_animation(shell, index, from, to);
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return;
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}
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weston_compositor_damage_all(shell->compositor);
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if (shell->workspaces.anim_to != NULL)
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finish_workspace_change_animation(shell,
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shell->workspaces.anim_from,
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shell->workspaces.anim_to);
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if (workspace_is_empty(to) && workspace_is_empty(from)) {
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shell->workspaces.current = index;
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wl_list_insert(&from->layer.link, &to->layer.link);
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wl_list_remove(&from->layer.link);
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}
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else
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animate_workspace_change(shell, index, from, to);
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}
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static void
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@ -1440,6 +1672,8 @@ create_shell_surface(void *shell, struct weston_surface *surface,
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wl_list_init(&shsurf->rotation.transform.link);
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weston_matrix_init(&shsurf->rotation.rotation);
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wl_list_init(&shsurf->workspace_transform.link);
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shsurf->type = SHELL_SURFACE_NONE;
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shsurf->next_type = SHELL_SURFACE_NONE;
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@ -2927,6 +3161,9 @@ shell_init(struct weston_compositor *ec)
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}
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activate_workspace(shell, 0);
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wl_list_init(&shell->workspaces.animation.link);
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shell->workspaces.animation.frame = animate_workspace_change_frame;
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if (wl_display_add_global(ec->wl_display, &wl_shell_interface,
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shell, bind_shell) == NULL)
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return -1;
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