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xdg shell: add wlr_xdg_surface_popup_surface_at()

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This function will allow compositors to implement input handling in a
way consistent with rendering more easily.

Calling wlr_xdg_surface_surface_at() and checking if the result is a
wlr_xdg_popup is flawed as there may be subsurfaces in the popup tree.
This commit is contained in:
Isaac Freund 2021-01-07 15:04:08 +01:00 committed by Simon Ser
parent c5c5ab9724
commit 8f63557ed7
2 changed files with 21 additions and 1 deletions
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9
include/wlr/types/wlr_xdg_shell.h
View file

@ -369,6 +369,15 @@ struct wlr_surface *wlr_xdg_surface_surface_at(
struct wlr_xdg_surface *surface, double sx, double sy,
double *sub_x, double *sub_y);
/**
* Find a surface within this xdg-surface's popup tree at the given
* surface-local coordinates. Returns the surface and coordinates in the leaf
* surface coordinate system or NULL if no surface is found at that location.
*/
struct wlr_surface *wlr_xdg_surface_popup_surface_at(
struct wlr_xdg_surface *surface, double sx, double sy,
double *sub_x, double *sub_y);
bool wlr_surface_is_xdg_surface(struct wlr_surface *surface);
struct wlr_xdg_surface *wlr_xdg_surface_from_wlr_surface(

13
types/xdg_shell/wlr_xdg_surface.c
View file

@ -583,6 +583,17 @@ static void xdg_popup_get_position(struct wlr_xdg_popup *popup,
struct wlr_surface *wlr_xdg_surface_surface_at(
struct wlr_xdg_surface *surface, double sx, double sy,
double *sub_x, double *sub_y) {
struct wlr_surface *sub = wlr_xdg_surface_popup_surface_at(surface, sx, sy,
sub_x, sub_y);
if (sub != NULL) {
return sub;
}
return wlr_surface_surface_at(surface->surface, sx, sy, sub_x, sub_y);
}
struct wlr_surface *wlr_xdg_surface_popup_surface_at(
struct wlr_xdg_surface *surface, double sx, double sy,
double *sub_x, double *sub_y) {
struct wlr_xdg_popup *popup_state;
wl_list_for_each(popup_state, &surface->popups, link) {
struct wlr_xdg_surface *popup = popup_state->base;
@ -599,7 +610,7 @@ struct wlr_surface *wlr_xdg_surface_surface_at(
}
}
return wlr_surface_surface_at(surface->surface, sx, sy, sub_x, sub_y);
return NULL;
}
struct xdg_surface_iterator_data {