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Implemented SDL_SetWindowMouseRect() on Wayland

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This commit is contained in:
Ethan Lee 2021-11-09 01:30:00 -05:00
parent 18e69827aa
commit ae67c7d2da
5 changed files with 59 additions and 24 deletions
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48
src/video/wayland/SDL_waylandevents.c
View file

@ -1670,11 +1670,12 @@ lock_pointer_to_window(SDL_Window *window,
w->locked_pointer = locked_pointer;
}
static void pointer_confine_destroy(struct SDL_WaylandInput *input)
static void pointer_confine_destroy(SDL_Window *window)
{
if (input->confined_pointer) {
zwp_confined_pointer_v1_destroy(input->confined_pointer);
input->confined_pointer = NULL;
SDL_WindowData *w = window->driverdata;
if (w->confined_pointer) {
zwp_confined_pointer_v1_destroy(w->confined_pointer);
w->confined_pointer = NULL;
}
}
@ -1696,7 +1697,8 @@ int Wayland_input_lock_pointer(struct SDL_WaylandInput *input)
/* If we have a pointer confine active, we must destroy it here because
* creating a locked pointer otherwise would be a protocol error. */
pointer_confine_destroy(input);
for (window = vd->windows; window; window = window->next)
pointer_confine_destroy(window);
if (!input->relative_pointer) {
relative_pointer =
@ -1736,8 +1738,8 @@ int Wayland_input_unlock_pointer(struct SDL_WaylandInput *input)
d->relative_mouse_mode = 0;
if (input->confined_pointer_window)
Wayland_input_confine_pointer(input->confined_pointer_window, input);
for (window = vd->windows; window; window = window->next)
Wayland_input_confine_pointer(input, window);
return 0;
}
@ -1759,11 +1761,12 @@ static const struct zwp_confined_pointer_v1_listener confined_pointer_listener =
confined_pointer_unconfined,
};
int Wayland_input_confine_pointer(SDL_Window *window, struct SDL_WaylandInput *input)
int Wayland_input_confine_pointer(struct SDL_WaylandInput *input, SDL_Window *window)
{
SDL_WindowData *w = window->driverdata;
SDL_VideoData *d = input->display;
struct zwp_confined_pointer_v1 *confined_pointer;
struct wl_region *confine_rect;
if (!d->pointer_constraints)
return -1;
@ -1773,34 +1776,45 @@ int Wayland_input_confine_pointer(SDL_Window *window, struct SDL_WaylandInput *i
/* A confine may already be active, in which case we should destroy it and
* create a new one. */
if (input->confined_pointer)
Wayland_input_unconfine_pointer(input);
input->confined_pointer_window = window;
pointer_confine_destroy(window);
/* We cannot create a confine if the pointer is already locked. Defer until
* the pointer is unlocked. */
if (d->relative_mouse_mode)
return 0;
if (SDL_RectEmpty(&window->mouse_rect)) {
confine_rect = NULL;
} else {
confine_rect = wl_compositor_create_region(d->compositor);
wl_region_add(confine_rect,
window->mouse_rect.x,
window->mouse_rect.y,
window->mouse_rect.w,
window->mouse_rect.h);
}
confined_pointer =
zwp_pointer_constraints_v1_confine_pointer(d->pointer_constraints,
w->surface,
input->pointer,
NULL,
confine_rect,
ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
zwp_confined_pointer_v1_add_listener(confined_pointer,
&confined_pointer_listener,
window);
input->confined_pointer = confined_pointer;
if (confine_rect != NULL) {
wl_region_destroy(confine_rect);
}
w->confined_pointer = confined_pointer;
return 0;
}
int Wayland_input_unconfine_pointer(struct SDL_WaylandInput *input)
int Wayland_input_unconfine_pointer(struct SDL_WaylandInput *input, SDL_Window *window)
{
pointer_confine_destroy(input);
input->confined_pointer_window = NULL;
pointer_confine_destroy(window);
return 0;
}

6
src/video/wayland/SDL_waylandevents_c.h
View file

@ -50,8 +50,6 @@ struct SDL_WaylandInput {
SDL_WaylandDataDevice *data_device;
SDL_WaylandTextInput *text_input;
struct zwp_relative_pointer_v1 *relative_pointer;
struct zwp_confined_pointer_v1 *confined_pointer;
SDL_Window *confined_pointer_window;
SDL_WindowData *pointer_focus;
SDL_WindowData *keyboard_focus;
uint32_t pointer_enter_serial;
@ -98,8 +96,8 @@ extern void Wayland_display_destroy_pointer_constraints(SDL_VideoData *d);
extern int Wayland_input_lock_pointer(struct SDL_WaylandInput *input);
extern int Wayland_input_unlock_pointer(struct SDL_WaylandInput *input);
extern int Wayland_input_confine_pointer(SDL_Window *window, struct SDL_WaylandInput *input);
extern int Wayland_input_unconfine_pointer(struct SDL_WaylandInput *input);
extern int Wayland_input_confine_pointer(struct SDL_WaylandInput *input, SDL_Window *window);
extern int Wayland_input_unconfine_pointer(struct SDL_WaylandInput *input, SDL_Window *window);
extern void Wayland_display_add_relative_pointer_manager(SDL_VideoData *d, uint32_t id);
extern void Wayland_display_destroy_relative_pointer_manager(SDL_VideoData *d);

1
src/video/wayland/SDL_waylandvideo.c
View file

@ -247,6 +247,7 @@ Wayland_CreateDevice(int devindex)
device->SetWindowFullscreen = Wayland_SetWindowFullscreen;
device->MaximizeWindow = Wayland_MaximizeWindow;
device->MinimizeWindow = Wayland_MinimizeWindow;
device->SetWindowMouseRect = Wayland_SetWindowMouseRect;
device->SetWindowMouseGrab = Wayland_SetWindowMouseGrab;
device->SetWindowKeyboardGrab = Wayland_SetWindowKeyboardGrab;
device->RestoreWindow = Wayland_RestoreWindow;

26
src/video/wayland/SDL_waylandwindow.c
View file

@ -1153,15 +1153,35 @@ Wayland_MinimizeWindow(_THIS, SDL_Window * window)
WAYLAND_wl_display_flush(viddata->display);
}
void
Wayland_SetWindowMouseRect(_THIS, SDL_Window *window)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
/* This may look suspiciously like SetWindowGrab, despite SetMouseRect not
* implicitly doing a grab. And you're right! Wayland doesn't let us mess
* around with mouse focus whatsoever, so it just happens to be that the
* work that we can do in these two functions ends up being the same.
*
* Just know that this call lets you confine with a rect, SetWindowGrab
* lets you confine without a rect.
*/
if (SDL_RectEmpty(&window->mouse_rect) && !(window->flags & SDL_WINDOW_MOUSE_GRABBED)) {
Wayland_input_unconfine_pointer(data->input, window);
} else {
Wayland_input_confine_pointer(data->input, window);
}
}
void
Wayland_SetWindowMouseGrab(_THIS, SDL_Window *window, SDL_bool grabbed)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
if (grabbed) {
Wayland_input_confine_pointer(window, data->input);
} else {
Wayland_input_unconfine_pointer(data->input);
Wayland_input_confine_pointer(data->input, window);
} else if (SDL_RectEmpty(&window->mouse_rect)) {
Wayland_input_unconfine_pointer(data->input, window);
}
}

2
src/video/wayland/SDL_waylandwindow.h
View file

@ -65,6 +65,7 @@ typedef struct {
struct SDL_WaylandInput *keyboard_device;
EGLSurface egl_surface;
struct zwp_locked_pointer_v1 *locked_pointer;
struct zwp_confined_pointer_v1 *confined_pointer;
struct zxdg_toplevel_decoration_v1 *server_decoration;
struct zwp_keyboard_shortcuts_inhibitor_v1 *key_inhibitor;
struct zwp_idle_inhibitor_v1 *idle_inhibitor;
@ -93,6 +94,7 @@ extern void Wayland_SetWindowFullscreen(_THIS, SDL_Window * window,
SDL_bool fullscreen);
extern void Wayland_MaximizeWindow(_THIS, SDL_Window * window);
extern void Wayland_MinimizeWindow(_THIS, SDL_Window * window);
extern void Wayland_SetWindowMouseRect(_THIS, SDL_Window * window);
extern void Wayland_SetWindowMouseGrab(_THIS, SDL_Window * window, SDL_bool grabbed);
extern void Wayland_SetWindowKeyboardGrab(_THIS, SDL_Window *window, SDL_bool grabbed);
extern void Wayland_RestoreWindow(_THIS, SDL_Window * window);