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wayland: Add the libdecor toplevel bounds and constraints properties

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This commit is contained in:
Frank Praznik
2025-09-16 09:55:32 -04:00
parent 08d84ea516
commit 03e1523eb8
1 changed files with 36 additions and 2 deletions
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38
src/video/wayland/SDL_waylandwindow.c
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@@ -1198,6 +1198,7 @@ static void decoration_frame_configure(struct libdecor_frame *frame,
bool tiled = false;
bool suspended = false;
bool resizing = false;
wind->toplevel_constraints = 0;
static const enum libdecor_window_state tiled_states = (LIBDECOR_WINDOW_STATE_TILED_LEFT | LIBDECOR_WINDOW_STATE_TILED_RIGHT |
LIBDECOR_WINDOW_STATE_TILED_TOP | LIBDECOR_WINDOW_STATE_TILED_BOTTOM);
@@ -1213,8 +1214,20 @@ static void decoration_frame_configure(struct libdecor_frame *frame,
#endif
#if SDL_LIBDECOR_CHECK_VERSION(0, 3, 0)
resizing = (window_state & LIBDECOR_WINDOW_STATE_RESIZING) != 0;
if (window_state & LIBDECOR_WINDOW_STATE_CONSTRAINED_LEFT) {
wind->toplevel_constraints |= WAYLAND_TOPLEVEL_CONSTRAINED_LEFT;
}
if (window_state & LIBDECOR_WINDOW_STATE_CONSTRAINED_RIGHT) {
wind->toplevel_constraints |= WAYLAND_TOPLEVEL_CONSTRAINED_RIGHT;
}
if (window_state & LIBDECOR_WINDOW_STATE_CONSTRAINED_TOP) {
wind->toplevel_constraints |= WAYLAND_TOPLEVEL_CONSTRAINED_TOP;
}
if (window_state & LIBDECOR_WINDOW_STATE_CONSTRAINED_BOTTOM) {
wind->toplevel_constraints |= WAYLAND_TOPLEVEL_CONSTRAINED_BOTTOM;
}
#endif
// TODO: Toplevel constraint passthrough is waiting on upstream libdecor changes.
}
const bool floating = !(fullscreen || maximized || tiled);
@@ -1289,6 +1302,13 @@ static void decoration_frame_configure(struct libdecor_frame *frame,
if (floating) {
width = window->floating.w;
height = window->floating.h;
// Clamp the window to the toplevel bounds, if any are set.
if (wind->shell_surface_status == WAYLAND_SHELL_SURFACE_STATUS_WAITING_FOR_CONFIGURE &&
wind->toplevel_bounds.width && wind->toplevel_bounds.height) {
width = SDL_min(wind->toplevel_bounds.width, width);
height = SDL_min(wind->toplevel_bounds.height, height);
}
} else {
width = window->windowed.w;
height = window->windowed.h;
@@ -1451,11 +1471,25 @@ static void decoration_dismiss_popup(struct libdecor_frame *frame, const char *s
// NOP
}
static void decoration_frame_bounds(struct libdecor_frame *frame, int width, int height, void *user_data)
{
SDL_WindowData *window = (SDL_WindowData *)user_data;
window->toplevel_bounds.width = width;
window->toplevel_bounds.height = height;
}
#if SDL_LIBDECOR_CHECK_VERSION(0, 3, 0)
#define FRAME_BOUNDS_FUNC_CAST(func) func
#else
#define FRAME_BOUNDS_FUNC_CAST(func) (void(*)(void))func
#endif
static struct libdecor_frame_interface libdecor_frame_interface = {
decoration_frame_configure,
decoration_frame_close,
decoration_frame_commit,
decoration_dismiss_popup
decoration_dismiss_popup,
FRAME_BOUNDS_FUNC_CAST(decoration_frame_bounds)
};
#endif