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layer shell: add wlr_layer_surface_v1_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_layer_surface_v1_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 15:11:29 +01:00 committed by Simon Ser
parent 8f63557ed7
commit 4ee4a36c0c
2 changed files with 21 additions and 1 deletions
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9
include/wlr/types/wlr_layer_shell_v1.h
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@ -151,4 +151,13 @@ struct wlr_surface *wlr_layer_surface_v1_surface_at(
struct wlr_layer_surface_v1 *surface, double sx, double sy,
double *sub_x, double *sub_y);
/**
* Find a surface within this layer-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_layer_surface_v1_popup_surface_at(
struct wlr_layer_surface_v1 *surface, double sx, double sy,
double *sub_x, double *sub_y);
#endif

13
types/wlr_layer_shell_v1.c
View file

@ -590,6 +590,17 @@ void wlr_layer_surface_v1_for_each_popup(struct wlr_layer_surface_v1 *surface,
struct wlr_surface *wlr_layer_surface_v1_surface_at(
struct wlr_layer_surface_v1 *surface, double sx, double sy,
double *sub_x, double *sub_y) {
struct wlr_surface *sub = wlr_layer_surface_v1_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_layer_surface_v1_popup_surface_at(
struct wlr_layer_surface_v1 *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;
@ -606,5 +617,5 @@ struct wlr_surface *wlr_layer_surface_v1_surface_at(
}
}
return wlr_surface_surface_at(surface->surface, sx, sy, sub_x, sub_y);
return NULL;
}