[PATCH weston 1/2] compositor: keep track of the weston_layer a weston_view is in

Jason Ekstrand jason at jlekstrand.net
Mon Jul 21 13:25:58 PDT 2014


Guilio,
I think I figured out what bothered me about this patch.  You use a
weston_layer_entry to store the list in weston_layer instead of just
wl_list.  I think the code would actually be clearer if you just used
wl_list in that case.  That way we avoid all of the layer.view_list.link
stuff which looks weird and inconsistent with the rest of our uses of the
word "link".  Other than that, I'm ok with it.
--Jason


On Fri, Jul 18, 2014 at 5:44 PM, Jason Ekstrand <jason at jlekstrand.net>
wrote:

> I'm not sure what I think about this patch.  I really don't like
> recreating wl_list and calling it wl_layer_entry just to keep track of the
> layer pointer.  However, I can't really think of a better solution
> off-hand.  I'll think on it more and get back to you on Monday.
> --Jason Ekstrand
>
>
> On Wed, Jul 9, 2014 at 12:12 PM, Giulio Camuffo <giuliocamuffo at gmail.com>
> wrote:
>
>> This introduces a new struct, weston_layer_entry, which is now used
>> in place of wl_list to keep the link for the layer list in weston_view
>> and the head of the list in weston_layer.
>> weston_layer_entry also has a weston_layer*, which points to the layer
>> the view is in or, in the case the entry it's the head of the list, to
>> the layer itself.
>> ---
>>  desktop-shell/exposay.c     |   4 +-
>>  desktop-shell/input-panel.c |   7 ++-
>>  desktop-shell/shell.c       | 145
>> +++++++++++++++++++++++---------------------
>>  src/compositor.c            |  33 +++++++---
>>  src/compositor.h            |  14 ++++-
>>  src/data-device.c           |   6 +-
>>  src/input.c                 |   4 +-
>>  tests/weston-test.c         |   6 +-
>>  8 files changed, 127 insertions(+), 92 deletions(-)
>>
>> diff --git a/desktop-shell/exposay.c b/desktop-shell/exposay.c
>> index 104b9d9..4b65cbd 100644
>> --- a/desktop-shell/exposay.c
>> +++ b/desktop-shell/exposay.c
>> @@ -219,7 +219,7 @@ exposay_layout(struct desktop_shell *shell, struct
>> shell_output *shell_output)
>>         int last_row_removed = 0;
>>
>>         eoutput->num_surfaces = 0;
>> -       wl_list_for_each(view, &workspace->layer.view_list, layer_link) {
>> +       wl_list_for_each(view, &workspace->layer.view_list.link,
>> layer_link.link) {
>>                 if (!get_shell_surface(view->surface))
>>                         continue;
>>                 if (view->output != output)
>> @@ -272,7 +272,7 @@ exposay_layout(struct desktop_shell *shell, struct
>> shell_output *shell_output)
>>                 eoutput->surface_size = output->height / 2;
>>
>>         i = 0;
>> -       wl_list_for_each(view, &workspace->layer.view_list, layer_link) {
>> +       wl_list_for_each(view, &workspace->layer.view_list.link,
>> layer_link.link) {
>>                 int pad;
>>
>>                 pad = eoutput->surface_size + eoutput->padding_inner;
>> diff --git a/desktop-shell/input-panel.c b/desktop-shell/input-panel.c
>> index 7623f6c..47bd73c 100644
>> --- a/desktop-shell/input-panel.c
>> +++ b/desktop-shell/input-panel.c
>> @@ -75,8 +75,8 @@ show_input_panel_surface(struct input_panel_surface
>> *ipsurf)
>>                 weston_view_set_position(ipsurf->view, x, y);
>>         }
>>
>> -       wl_list_insert(&shell->input_panel_layer.view_list,
>> -                      &ipsurf->view->layer_link);
>> +       weston_layer_entry_insert(&shell->input_panel_layer.view_list,
>> +                                 &ipsurf->view->layer_link);
>>         weston_view_geometry_dirty(ipsurf->view);
>>         weston_view_update_transform(ipsurf->view);
>>         weston_surface_damage(ipsurf->surface);
>> @@ -135,7 +135,8 @@ hide_input_panels(struct wl_listener *listener, void
>> *data)
>>                 wl_list_remove(&shell->input_panel_layer.link);
>>
>>         wl_list_for_each_safe(view, next,
>> -                             &shell->input_panel_layer.view_list,
>> layer_link)
>> +                             &shell->input_panel_layer.view_list.link,
>> +                             layer_link.link)
>>                 weston_view_unmap(view);
>>  }
>>
>> diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c
>> index f22cef8..6f6e25c 100644
>> --- a/desktop-shell/shell.c
>> +++ b/desktop-shell/shell.c
>> @@ -279,12 +279,12 @@ shell_surface_is_top_fullscreen(struct
>> shell_surface *shsurf)
>>
>>         shell = shell_surface_get_shell(shsurf);
>>
>> -       if (wl_list_empty(&shell->fullscreen_layer.view_list))
>> +       if (wl_list_empty(&shell->fullscreen_layer.view_list.link))
>>                 return false;
>>
>> -       top_fs_ev = container_of(shell->fullscreen_layer.view_list.next,
>> +       top_fs_ev =
>> container_of(shell->fullscreen_layer.view_list.link.next,
>>                                  struct weston_view,
>> -                                layer_link);
>> +                                layer_link.link);
>>         return (shsurf == get_shell_surface(top_fs_ev->surface));
>>  }
>>
>> @@ -361,7 +361,7 @@ get_output_panel_height(struct desktop_shell *shell,
>>         if (!output)
>>                 return 0;
>>
>> -       wl_list_for_each(view, &shell->panel_layer.view_list, layer_link)
>> {
>> +       wl_list_for_each(view, &shell->panel_layer.view_list.link,
>> layer_link.link) {
>>                 if (view->surface->output == output) {
>>                         panel_height = view->surface->height;
>>                         break;
>> @@ -675,7 +675,8 @@ focus_state_surface_destroy(struct wl_listener
>> *listener, void *data)
>>         main_surface =
>> weston_surface_get_main_surface(state->keyboard_focus);
>>
>>         next = NULL;
>> -       wl_list_for_each(view, &state->ws->layer.view_list, layer_link) {
>> +       wl_list_for_each(view,
>> +                        &state->ws->layer.view_list.link,
>> layer_link.link) {
>>                 if (view->surface == main_surface)
>>                         continue;
>>                 if (is_focus_view(view))
>> @@ -854,8 +855,8 @@ animate_focus_change(struct desktop_shell *shell,
>> struct workspace *ws,
>>
>>                 focus_surface_created = true;
>>         } else {
>> -               wl_list_remove(&ws->fsurf_front->view->layer_link);
>> -               wl_list_remove(&ws->fsurf_back->view->layer_link);
>> +
>> weston_layer_entry_remove(&ws->fsurf_front->view->layer_link);
>> +
>> weston_layer_entry_remove(&ws->fsurf_back->view->layer_link);
>>         }
>>
>>         if (ws->focus_animation) {
>> @@ -864,11 +865,11 @@ animate_focus_change(struct desktop_shell *shell,
>> struct workspace *ws,
>>         }
>>
>>         if (to)
>> -               wl_list_insert(&to->layer_link,
>> -                              &ws->fsurf_front->view->layer_link);
>> +               weston_layer_entry_insert(&to->layer_link,
>> +
>> &ws->fsurf_front->view->layer_link);
>>         else if (from)
>> -               wl_list_insert(&ws->layer.view_list,
>> -                              &ws->fsurf_front->view->layer_link);
>> +               weston_layer_entry_insert(&ws->layer.view_list,
>> +
>> &ws->fsurf_front->view->layer_link);
>>
>>         if (focus_surface_created) {
>>                 ws->focus_animation = weston_fade_run(
>> @@ -876,15 +877,15 @@ animate_focus_change(struct desktop_shell *shell,
>> struct workspace *ws,
>>                         ws->fsurf_front->view->alpha, 0.4, 300,
>>                         focus_animation_done, ws);
>>         } else if (from) {
>> -               wl_list_insert(&from->layer_link,
>> -                              &ws->fsurf_back->view->layer_link);
>> +               weston_layer_entry_insert(&from->layer_link,
>> +
>> &ws->fsurf_back->view->layer_link);
>>                 ws->focus_animation = weston_stable_fade_run(
>>                         ws->fsurf_front->view, 0.0,
>>                         ws->fsurf_back->view, 0.4,
>>                         focus_animation_done, ws);
>>         } else if (to) {
>> -               wl_list_insert(&ws->layer.view_list,
>> -                              &ws->fsurf_back->view->layer_link);
>> +               weston_layer_entry_insert(&ws->layer.view_list,
>> +
>> &ws->fsurf_back->view->layer_link);
>>                 ws->focus_animation = weston_stable_fade_run(
>>                         ws->fsurf_front->view, 0.0,
>>                         ws->fsurf_back->view, 0.4,
>> @@ -944,7 +945,7 @@ workspace_create(void)
>>  static int
>>  workspace_is_empty(struct workspace *ws)
>>  {
>> -       return wl_list_empty(&ws->layer.view_list);
>> +       return wl_list_empty(&ws->layer.view_list.link);
>>  }
>>
>>  static struct workspace *
>> @@ -1009,7 +1010,7 @@ workspace_translate_out(struct workspace *ws,
>> double fraction)
>>         unsigned int height;
>>         double d;
>>
>> -       wl_list_for_each(view, &ws->layer.view_list, layer_link) {
>> +       wl_list_for_each(view, &ws->layer.view_list.link,
>> layer_link.link) {
>>                 height = get_output_height(view->surface->output);
>>                 d = height * fraction;
>>
>> @@ -1024,7 +1025,7 @@ workspace_translate_in(struct workspace *ws, double
>> fraction)
>>         unsigned int height;
>>         double d;
>>
>> -       wl_list_for_each(view, &ws->layer.view_list, layer_link) {
>> +       wl_list_for_each(view, &ws->layer.view_list.link,
>> layer_link.link) {
>>                 height = get_output_height(view->surface->output);
>>
>>                 if (fraction > 0)
>> @@ -1069,7 +1070,7 @@ workspace_deactivate_transforms(struct workspace
>> *ws)
>>         struct weston_view *view;
>>         struct weston_transform *transform;
>>
>> -       wl_list_for_each(view, &ws->layer.view_list, layer_link) {
>> +       wl_list_for_each(view, &ws->layer.view_list.link,
>> layer_link.link) {
>>                 if (is_focus_view(view)) {
>>                         struct focus_surface *fsurf =
>> get_focus_surface(view->surface);
>>                         transform = &fsurf->workspace_transform;
>> @@ -1099,7 +1100,7 @@ finish_workspace_change_animation(struct
>> desktop_shell *shell,
>>          * visible after the workspace animation ends but before its layer
>>          * is hidden. In that case, we need to damage below those views so
>>          * that the screen is properly repainted. */
>> -       wl_list_for_each(view, &from->layer.view_list, layer_link)
>> +       wl_list_for_each(view, &from->layer.view_list.link,
>> layer_link.link)
>>                 weston_view_damage_below(view);
>>
>>         wl_list_remove(&shell->workspaces.animation.link);
>> @@ -1218,7 +1219,7 @@ change_workspace(struct desktop_shell *shell,
>> unsigned int index)
>>                 return;
>>
>>         /* Don't change workspace when there is any fullscreen surfaces.
>> */
>> -       if (!wl_list_empty(&shell->fullscreen_layer.view_list))
>> +       if (!wl_list_empty(&shell->fullscreen_layer.view_list.link))
>>                 return;
>>
>>         from = get_current_workspace(shell);
>> @@ -1262,7 +1263,7 @@ change_workspace(struct desktop_shell *shell,
>> unsigned int index)
>>  static bool
>>  workspace_has_only(struct workspace *ws, struct weston_surface *surface)
>>  {
>> -       struct wl_list *list = &ws->layer.view_list;
>> +       struct wl_list *list = &ws->layer.view_list.link;
>>         struct wl_list *e;
>>
>>         if (wl_list_empty(list))
>> @@ -1273,7 +1274,7 @@ workspace_has_only(struct workspace *ws, struct
>> weston_surface *surface)
>>         if (e->next != list)
>>                 return false;
>>
>> -       return container_of(e, struct weston_view, layer_link)->surface
>> == surface;
>> +       return container_of(e, struct weston_view,
>> layer_link.link)->surface == surface;
>>  }
>>
>>  static void
>> @@ -1302,8 +1303,8 @@ move_surface_to_workspace(struct desktop_shell
>> *shell,
>>         from = get_current_workspace(shell);
>>         to = get_workspace(shell, workspace);
>>
>> -       wl_list_remove(&view->layer_link);
>> -       wl_list_insert(&to->layer.view_list, &view->layer_link);
>> +       weston_layer_entry_remove(&view->layer_link);
>> +       weston_layer_entry_insert(&to->layer.view_list,
>> &view->layer_link);
>>
>>         shell_surface_update_child_surface_layers(shsurf);
>>
>> @@ -1342,8 +1343,8 @@ take_surface_to_workspace_by_seat(struct
>> desktop_shell *shell,
>>         from = get_current_workspace(shell);
>>         to = get_workspace(shell, index);
>>
>> -       wl_list_remove(&view->layer_link);
>> -       wl_list_insert(&to->layer.view_list, &view->layer_link);
>> +       weston_layer_entry_remove(&view->layer_link);
>> +       weston_layer_entry_insert(&to->layer.view_list,
>> &view->layer_link);
>>
>>         shsurf = get_shell_surface(surface);
>>         if (shsurf != NULL)
>> @@ -2177,7 +2178,7 @@ restore_all_output_modes(struct weston_compositor
>> *compositor)
>>  /* The surface will be inserted into the list immediately after the link
>>   * returned by this function (i.e. will be stacked immediately above the
>>   * returned link). */
>> -static struct wl_list *
>> +static struct weston_layer_entry *
>>  shell_surface_calculate_layer_link (struct shell_surface *shsurf)
>>  {
>>         struct workspace *ws;
>> @@ -2203,7 +2204,8 @@ shell_surface_calculate_layer_link (struct
>> shell_surface *shsurf)
>>                         /* TODO: Handle a parent with multiple views */
>>                         parent = get_default_view(shsurf->parent);
>>                         if (parent)
>> -                               return parent->layer_link.prev;
>> +                               return
>> container_of(parent->layer_link.link.prev,
>> +                                                   struct
>> weston_layer_entry, link);
>>                 }
>>
>>                 /* Move the surface to a normal workspace layer so that
>> surfaces
>> @@ -2220,16 +2222,19 @@ static void
>>  shell_surface_update_child_surface_layers (struct shell_surface *shsurf)
>>  {
>>         struct shell_surface *child;
>> +       struct weston_layer_entry *prev;
>>
>>         /* Move the child layers to the same workspace as shsurf. They
>> will be
>>          * stacked above shsurf. */
>>         wl_list_for_each_reverse(child, &shsurf->children_list,
>> children_link) {
>> -               if (shsurf->view->layer_link.prev !=
>> &child->view->layer_link) {
>> +               if (shsurf->view->layer_link.link.prev !=
>> &child->view->layer_link.link) {
>>                         weston_view_damage_below(child->view);
>>                         weston_view_geometry_dirty(child->view);
>> -                       wl_list_remove(&child->view->layer_link);
>> -                       wl_list_insert(shsurf->view->layer_link.prev,
>> -                                      &child->view->layer_link);
>> +                       prev =
>> container_of(shsurf->view->layer_link.link.prev,
>> +                                           struct weston_layer_entry,
>> link);
>> +
>> weston_layer_entry_remove(&child->view->layer_link);
>> +                       weston_layer_entry_insert(prev,
>> +
>> &child->view->layer_link);
>>                         weston_view_geometry_dirty(child->view);
>>                         weston_surface_damage(child->surface);
>>
>> @@ -2250,7 +2255,7 @@ shell_surface_update_child_surface_layers (struct
>> shell_surface *shsurf)
>>  static void
>>  shell_surface_update_layer(struct shell_surface *shsurf)
>>  {
>> -       struct wl_list *new_layer_link;
>> +       struct weston_layer_entry *new_layer_link;
>>
>>         new_layer_link = shell_surface_calculate_layer_link(shsurf);
>>
>> @@ -2260,8 +2265,8 @@ shell_surface_update_layer(struct shell_surface
>> *shsurf)
>>                 return;
>>
>>         weston_view_geometry_dirty(shsurf->view);
>> -       wl_list_remove(&shsurf->view->layer_link);
>> -       wl_list_insert(new_layer_link, &shsurf->view->layer_link);
>> +       weston_layer_entry_remove(&shsurf->view->layer_link);
>> +       weston_layer_entry_insert(new_layer_link,
>> &shsurf->view->layer_link);
>>         weston_view_geometry_dirty(shsurf->view);
>>         weston_surface_damage(shsurf->surface);
>>
>> @@ -2523,10 +2528,10 @@ set_minimized(struct weston_surface *surface,
>> uint32_t is_true)
>>         shsurf = get_shell_surface(surface);
>>         current_ws = get_current_workspace(shsurf->shell);
>>
>> -       wl_list_remove(&view->layer_link);
>> +       weston_layer_entry_remove(&view->layer_link);
>>          /* hide or show, depending on the state */
>>         if (is_true) {
>> -               wl_list_insert(&shsurf->shell->minimized_layer.view_list,
>> &view->layer_link);
>> +
>> weston_layer_entry_insert(&shsurf->shell->minimized_layer.view_list,
>> &view->layer_link);
>>
>>                 drop_focus_state(shsurf->shell, current_ws,
>> view->surface);
>>                 wl_list_for_each(seat,
>> &shsurf->shell->compositor->seat_list, link) {
>> @@ -2538,7 +2543,7 @@ set_minimized(struct weston_surface *surface,
>> uint32_t is_true)
>>                 }
>>         }
>>         else {
>> -               wl_list_insert(&current_ws->layer.view_list,
>> &view->layer_link);
>> +               weston_layer_entry_insert(&current_ws->layer.view_list,
>> &view->layer_link);
>>
>>                 wl_list_for_each(seat,
>> &shsurf->shell->compositor->seat_list, link) {
>>                         if (!seat->keyboard)
>> @@ -2704,9 +2709,9 @@ shell_ensure_fullscreen_black_view(struct
>> shell_surface *shsurf)
>>                                              output->height);
>>
>>         weston_view_geometry_dirty(shsurf->fullscreen.black_view);
>> -       wl_list_remove(&shsurf->fullscreen.black_view->layer_link);
>> -       wl_list_insert(&shsurf->view->layer_link,
>> -                      &shsurf->fullscreen.black_view->layer_link);
>> +
>> weston_layer_entry_remove(&shsurf->fullscreen.black_view->layer_link);
>> +       weston_layer_entry_insert(&shsurf->view->layer_link,
>> +
>> &shsurf->fullscreen.black_view->layer_link);
>>         weston_view_geometry_dirty(shsurf->fullscreen.black_view);
>>         weston_surface_damage(shsurf->surface);
>>
>> @@ -2728,8 +2733,8 @@ shell_configure_fullscreen(struct shell_surface
>> *shsurf)
>>                 restore_output_mode(output);
>>
>>         /* Reverse the effect of lower_fullscreen_layer() */
>> -       wl_list_remove(&shsurf->view->layer_link);
>> -       wl_list_insert(&shsurf->shell->fullscreen_layer.view_list,
>> &shsurf->view->layer_link);
>> +       weston_layer_entry_remove(&shsurf->view->layer_link);
>> +
>> weston_layer_entry_insert(&shsurf->shell->fullscreen_layer.view_list,
>> &shsurf->view->layer_link);
>>
>>         shell_ensure_fullscreen_black_view(shsurf);
>>
>> @@ -3888,7 +3893,7 @@ configure_static_view(struct weston_view *ev,
>> struct weston_layer *layer)
>>  {
>>         struct weston_view *v, *next;
>>
>> -       wl_list_for_each_safe(v, next, &layer->view_list, layer_link) {
>> +       wl_list_for_each_safe(v, next, &layer->view_list.link,
>> layer_link.link) {
>>                 if (v->output == ev->output && v != ev) {
>>                         weston_view_unmap(v);
>>                         v->surface->configure = NULL;
>> @@ -3897,8 +3902,8 @@ configure_static_view(struct weston_view *ev,
>> struct weston_layer *layer)
>>
>>         weston_view_set_position(ev, ev->output->x, ev->output->y);
>>
>> -       if (wl_list_empty(&ev->layer_link)) {
>> -               wl_list_insert(&layer->view_list, &ev->layer_link);
>> +       if (wl_list_empty(&ev->layer_link.link)) {
>> +               weston_layer_entry_insert(&layer->view_list,
>> &ev->layer_link);
>>
>> weston_compositor_schedule_repaint(ev->surface->compositor);
>>         }
>>  }
>> @@ -4003,8 +4008,8 @@ lock_surface_configure(struct weston_surface
>> *surface, int32_t sx, int32_t sy)
>>         center_on_output(view, get_default_output(shell->compositor));
>>
>>         if (!weston_surface_is_mapped(surface)) {
>> -               wl_list_insert(&shell->lock_layer.view_list,
>> -                              &view->layer_link);
>> +               weston_layer_entry_insert(&shell->lock_layer.view_list,
>> +                                         &view->layer_link);
>>                 weston_view_update_transform(view);
>>                 shell_fade(shell, FADE_IN);
>>         }
>> @@ -4534,8 +4539,8 @@ lower_fullscreen_layer(struct desktop_shell *shell)
>>
>>         ws = get_current_workspace(shell);
>>         wl_list_for_each_reverse_safe(view, prev,
>> -                                     &shell->fullscreen_layer.view_list,
>> -                                     layer_link) {
>> +
>> &shell->fullscreen_layer.view_list.link,
>> +                                     layer_link.link) {
>>                 struct shell_surface *shsurf =
>> get_shell_surface(view->surface);
>>
>>                 if (!shsurf)
>> @@ -4545,15 +4550,15 @@ lower_fullscreen_layer(struct desktop_shell
>> *shell)
>>                  * in the fullscreen layer. */
>>                 if (shsurf->state.fullscreen) {
>>                         /* Hide the black view */
>> -
>> wl_list_remove(&shsurf->fullscreen.black_view->layer_link);
>> -
>> wl_list_init(&shsurf->fullscreen.black_view->layer_link);
>> +
>> weston_layer_entry_remove(&shsurf->fullscreen.black_view->layer_link);
>> +
>> wl_list_init(&shsurf->fullscreen.black_view->layer_link.link);
>>
>> weston_view_damage_below(shsurf->fullscreen.black_view);
>>
>>                 }
>>
>>                 /* Lower the view to the workspace layer */
>> -               wl_list_remove(&view->layer_link);
>> -               wl_list_insert(&ws->layer.view_list, &view->layer_link);
>> +               weston_layer_entry_remove(&view->layer_link);
>> +               weston_layer_entry_insert(&ws->layer.view_list,
>> &view->layer_link);
>>                 weston_view_damage_below(view);
>>                 weston_surface_damage(view->surface);
>>
>> @@ -4772,8 +4777,8 @@ shell_fade_create_surface(struct desktop_shell
>> *shell)
>>         weston_surface_set_size(surface, 8192, 8192);
>>         weston_view_set_position(view, 0, 0);
>>         weston_surface_set_color(surface, 0.0, 0.0, 0.0, 1.0);
>> -       wl_list_insert(&compositor->fade_layer.view_list,
>> -                      &view->layer_link);
>> +       weston_layer_entry_insert(&compositor->fade_layer.view_list,
>> +                                 &view->layer_link);
>>         pixman_region32_init(&surface->input);
>>
>>         return view;
>> @@ -5343,6 +5348,7 @@ screensaver_configure(struct weston_surface
>> *surface, int32_t sx, int32_t sy)
>>  {
>>         struct desktop_shell *shell = surface->configure_private;
>>         struct weston_view *view;
>> +       struct weston_layer_entry *prev;
>>
>>         if (surface->width == 0)
>>                 return;
>> @@ -5354,9 +5360,10 @@ screensaver_configure(struct weston_surface
>> *surface, int32_t sx, int32_t sy)
>>         view = container_of(surface->views.next, struct weston_view,
>> surface_link);
>>         center_on_output(view, surface->output);
>>
>> -       if (wl_list_empty(&view->layer_link)) {
>> -               wl_list_insert(shell->lock_layer.view_list.prev,
>> -                              &view->layer_link);
>> +       if (wl_list_empty(&view->layer_link.link)) {
>> +               prev = container_of(shell->lock_layer.view_list.link.prev,
>> +                                   struct weston_layer_entry, link);
>> +               weston_layer_entry_insert(prev, &view->layer_link);
>>                 weston_view_update_transform(view);
>>                 wl_event_source_timer_update(shell->screensaver.timer,
>>                                              shell->screensaver.duration);
>> @@ -5439,14 +5446,14 @@ switcher_next(struct switcher *switcher)
>>          /* temporary re-display minimized surfaces */
>>         struct weston_view *tmp;
>>         struct weston_view **minimized;
>> -       wl_list_for_each_safe(view, tmp,
>> &switcher->shell->minimized_layer.view_list, layer_link) {
>> -               wl_list_remove(&view->layer_link);
>> -               wl_list_insert(&ws->layer.view_list, &view->layer_link);
>> +       wl_list_for_each_safe(view, tmp,
>> &switcher->shell->minimized_layer.view_list.link, layer_link.link) {
>> +               weston_layer_entry_remove(&view->layer_link);
>> +               weston_layer_entry_insert(&ws->layer.view_list,
>> &view->layer_link);
>>                 minimized = wl_array_add(&switcher->minimized_array,
>> sizeof *minimized);
>>                 *minimized = view;
>>         }
>>
>> -       wl_list_for_each(view, &ws->layer.view_list, layer_link) {
>> +       wl_list_for_each(view, &ws->layer.view_list.link,
>> layer_link.link) {
>>                 shsurf = get_shell_surface(view->surface);
>>                 if (shsurf &&
>>                     shsurf->type == SHELL_SURFACE_TOPLEVEL &&
>> @@ -5502,7 +5509,7 @@ switcher_destroy(struct switcher *switcher)
>>         struct weston_keyboard *keyboard = switcher->grab.keyboard;
>>         struct workspace *ws = get_current_workspace(switcher->shell);
>>
>> -       wl_list_for_each(view, &ws->layer.view_list, layer_link) {
>> +       wl_list_for_each(view, &ws->layer.view_list.link,
>> layer_link.link) {
>>                 if (is_focus_view(view))
>>                         continue;
>>
>> @@ -5523,8 +5530,8 @@ switcher_destroy(struct switcher *switcher)
>>         wl_array_for_each(minimized, &switcher->minimized_array) {
>>                 /* with the exception of the current selected */
>>                 if ((*minimized)->surface != switcher->current) {
>> -                       wl_list_remove(&(*minimized)->layer_link);
>> -
>> wl_list_insert(&switcher->shell->minimized_layer.view_list,
>> &(*minimized)->layer_link);
>> +
>> weston_layer_entry_remove(&(*minimized)->layer_link);
>> +
>> weston_layer_entry_insert(&switcher->shell->minimized_layer.view_list,
>> &(*minimized)->layer_link);
>>                         weston_view_damage_below(*minimized);
>>                 }
>>         }
>> @@ -5928,7 +5935,7 @@ shell_output_destroy_move_layer(struct
>> desktop_shell *shell,
>>         struct weston_output *output = data;
>>         struct weston_view *view;
>>
>> -       wl_list_for_each(view, &layer->view_list, layer_link) {
>> +       wl_list_for_each(view, &layer->view_list.link, layer_link.link) {
>>                 if (view->output != output)
>>                         continue;
>>
>> @@ -5987,7 +5994,7 @@ handle_output_move_layer(struct desktop_shell
>> *shell,
>>         struct weston_view *view;
>>         float x, y;
>>
>> -       wl_list_for_each(view, &layer->view_list, layer_link) {
>> +       wl_list_for_each(view, &layer->view_list.link, layer_link.link) {
>>                 if (view->output != output)
>>                         continue;
>>
>> diff --git a/src/compositor.c b/src/compositor.c
>> index 17fce8d..1d8d00e 100644
>> --- a/src/compositor.c
>> +++ b/src/compositor.c
>> @@ -345,9 +345,10 @@ weston_view_create(struct weston_surface *surface)
>>
>>         wl_signal_init(&view->destroy_signal);
>>         wl_list_init(&view->link);
>> -       wl_list_init(&view->layer_link);
>> +       wl_list_init(&view->layer_link.link);
>>
>>         view->plane = NULL;
>> +       view->layer_link.layer = NULL;
>>
>>         pixman_region32_init(&view->clip);
>>
>> @@ -1366,8 +1367,7 @@ weston_view_unmap(struct weston_view *view)
>>         weston_view_damage_below(view);
>>         view->output = NULL;
>>         view->plane = NULL;
>> -       wl_list_remove(&view->layer_link);
>> -       wl_list_init(&view->layer_link);
>> +       weston_layer_entry_remove(&view->layer_link);
>>         wl_list_remove(&view->link);
>>         wl_list_init(&view->link);
>>         view->output_mask = 0;
>> @@ -1422,7 +1422,7 @@ weston_view_destroy(struct weston_view *view)
>>         }
>>
>>         wl_list_remove(&view->link);
>> -       wl_list_remove(&view->layer_link);
>> +       weston_layer_entry_remove(&view->layer_link);
>>
>>         pixman_region32_fini(&view->clip);
>>         pixman_region32_fini(&view->transform.boundingbox);
>> @@ -1783,18 +1783,18 @@ weston_compositor_build_view_list(struct
>> weston_compositor *compositor)
>>         struct weston_layer *layer;
>>
>>         wl_list_for_each(layer, &compositor->layer_list, link)
>> -               wl_list_for_each(view, &layer->view_list, layer_link)
>> +               wl_list_for_each(view, &layer->view_list.link,
>> layer_link.link)
>>                         surface_stash_subsurface_views(view->surface);
>>
>>         wl_list_init(&compositor->view_list);
>>         wl_list_for_each(layer, &compositor->layer_list, link) {
>> -               wl_list_for_each(view, &layer->view_list, layer_link) {
>> +               wl_list_for_each(view, &layer->view_list.link,
>> layer_link.link) {
>>                         view_list_add(compositor, view);
>>                 }
>>         }
>>
>>         wl_list_for_each(layer, &compositor->layer_list, link)
>> -               wl_list_for_each(view, &layer->view_list, layer_link)
>> +               wl_list_for_each(view, &layer->view_list.link,
>> layer_link.link)
>>
>> surface_free_unused_subsurface_views(view->surface);
>>  }
>>
>> @@ -1913,9 +1913,26 @@ idle_repaint(void *data)
>>  }
>>
>>  WL_EXPORT void
>> +weston_layer_entry_insert(struct weston_layer_entry *list,
>> +                         struct weston_layer_entry *entry)
>> +{
>> +       wl_list_insert(&list->link, &entry->link);
>> +       entry->layer = list->layer;
>> +}
>> +
>> +WL_EXPORT void
>> +weston_layer_entry_remove(struct weston_layer_entry *entry)
>> +{
>> +       wl_list_remove(&entry->link);
>> +       wl_list_init(&entry->link);
>> +       entry->layer = NULL;
>> +}
>> +
>> +WL_EXPORT void
>>  weston_layer_init(struct weston_layer *layer, struct wl_list *below)
>>  {
>> -       wl_list_init(&layer->view_list);
>> +       wl_list_init(&layer->view_list.link);
>> +       layer->view_list.layer = layer;
>>         if (below != NULL)
>>                 wl_list_insert(below, &layer->link);
>>  }
>> diff --git a/src/compositor.h b/src/compositor.h
>> index bef5e1d..78a59cb 100644
>> --- a/src/compositor.h
>> +++ b/src/compositor.h
>> @@ -526,8 +526,13 @@ enum {
>>                                           * to off */
>>  };
>>
>> +struct weston_layer_entry {
>> +       struct wl_list link;
>> +       struct weston_layer *layer;
>> +};
>> +
>>  struct weston_layer {
>> -       struct wl_list view_list;
>> +       struct weston_layer_entry view_list;
>>         struct wl_list link;
>>  };
>>
>> @@ -731,7 +736,7 @@ struct weston_view {
>>         struct wl_signal destroy_signal;
>>
>>         struct wl_list link;
>> -       struct wl_list layer_link;
>> +       struct weston_layer_entry layer_link;
>>         struct weston_plane *plane;
>>
>>         pixman_region32_t clip;
>> @@ -997,6 +1002,11 @@ void
>>  notify_touch_frame(struct weston_seat *seat);
>>
>>  void
>> +weston_layer_entry_insert(struct weston_layer_entry *list,
>> +                         struct weston_layer_entry *entry);
>> +void
>> +weston_layer_entry_remove(struct weston_layer_entry *entry);
>> +void
>>  weston_layer_init(struct weston_layer *layer, struct wl_list *below);
>>
>>  void
>> diff --git a/src/data-device.c b/src/data-device.c
>> index a069b3c..75fc60c 100644
>> --- a/src/data-device.c
>> +++ b/src/data-device.c
>> @@ -180,7 +180,7 @@ drag_surface_configure(struct weston_drag *drag,
>>                        struct weston_surface *es,
>>                        int32_t sx, int32_t sy)
>>  {
>> -       struct wl_list *list;
>> +       struct weston_layer_entry *list;
>>         float fx, fy;
>>
>>         assert((pointer != NULL && touch == NULL) ||
>> @@ -193,8 +193,8 @@ drag_surface_configure(struct weston_drag *drag,
>>                 else
>>                         list = &es->compositor->cursor_layer.view_list;
>>
>> -               wl_list_remove(&drag->icon->layer_link);
>> -               wl_list_insert(list, &drag->icon->layer_link);
>> +               weston_layer_entry_remove(&drag->icon->layer_link);
>> +               weston_layer_entry_insert(list, &drag->icon->layer_link);
>>                 weston_view_update_transform(drag->icon);
>>                 pixman_region32_clear(&es->pending.input);
>>         }
>> diff --git a/src/input.c b/src/input.c
>> index 2c799f4..4aa8ca7 100644
>> --- a/src/input.c
>> +++ b/src/input.c
>> @@ -1555,8 +1555,8 @@ pointer_cursor_surface_configure(struct
>> weston_surface *es,
>>         empty_region(&es->input);
>>
>>         if (!weston_surface_is_mapped(es)) {
>> -               wl_list_insert(&es->compositor->cursor_layer.view_list,
>> -                              &pointer->sprite->layer_link);
>> +
>> weston_layer_entry_insert(&es->compositor->cursor_layer.view_list,
>> +                                         &pointer->sprite->layer_link);
>>                 weston_view_update_transform(pointer->sprite);
>>         }
>>  }
>> diff --git a/tests/weston-test.c b/tests/weston-test.c
>> index 35ccaa4..ca2f219 100644
>> --- a/tests/weston-test.c
>> +++ b/tests/weston-test.c
>> @@ -93,9 +93,9 @@ test_surface_configure(struct weston_surface *surface,
>> int32_t sx, int32_t sy)
>>         struct weston_test_surface *test_surface =
>> surface->configure_private;
>>         struct weston_test *test = test_surface->test;
>>
>> -       if (wl_list_empty(&test_surface->view->layer_link))
>> -               wl_list_insert(&test->layer.view_list,
>> -                              &test_surface->view->layer_link);
>> +       if (wl_list_empty(&test_surface->view->layer_link.link))
>> +               weston_layer_entry_insert(&test->layer.view_list,
>> +
>> &test_surface->view->layer_link);
>>
>>         weston_view_set_position(test_surface->view,
>>                                  test_surface->x, test_surface->y);
>> --
>> 2.0.0
>>
>> _______________________________________________
>> wayland-devel mailing list
>> wayland-devel at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/wayland-devel
>>
>
>
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