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view: add view_wants_focus enum (NEVER/ALWAYS/OFFER) and function

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This allows identifying XWayland views using the ICCCM "Globally Active"
input model. Later commits will improve handling of these views.

No functional change in this commit.
This commit is contained in:
John Lindgren 2023-10-15 01:11:12 -04:00 • committed by Johan Malm
parent 8bb2e2123f
commit dd7f563a50
3 changed files with 79 additions and 20 deletions
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21
include/view.h
View file

@ -36,6 +36,21 @@ enum view_edge {
VIEW_EDGE_CENTER,
};
enum view_wants_focus {
/* View does not want focus */
VIEW_WANTS_FOCUS_NEVER = 0,
/* View wants focus */
VIEW_WANTS_FOCUS_ALWAYS,
/*
* View should be offered focus and may accept or decline
* (a.k.a. ICCCM Globally Active input model). Labwc generally
* avoids focusing these views automatically (e.g. when another
* view on top is closed) but they may be focused by user action
* (e.g. mouse click).
*/
VIEW_WANTS_FOCUS_OFFER,
};
struct view;
struct wlr_surface;
@ -72,8 +87,8 @@ struct view_impl {
/* determines if view and surface are owned by the same process */
bool (*is_related)(struct view *self, struct wlr_surface *surface);
struct view_size_hints (*get_size_hints)(struct view *self);
/* if not implemented, view is assumed to want focus */
bool (*wants_focus)(struct view *self);
/* if not implemented, VIEW_WANTS_FOCUS_ALWAYS is assumed */
enum view_wants_focus (*wants_focus)(struct view *self);
};
struct view {
@ -273,6 +288,8 @@ struct view *view_next(struct wl_list *head, struct view *view,
void view_array_append(struct server *server, struct wl_array *views,
enum lab_view_criteria criteria);
enum view_wants_focus view_wants_focus(struct view *view);
/**
* view_is_focusable() - Check whether or not a view can be focused
* @view: view to be checked