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backend/x11: don't send ConfigureRequest with the same size

Browse source 
Under X11, ConfigureNotify means that the window has already been resized.
Sending ConfigureRequest with the received size is not only useless, but also
can confuse the window manager, which will probably reply with the current
(i.e. *old*) size causing a configure loop.

Fixes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3769
This commit is contained in:
Kirill Primak 2023-11-26 00:51:50 +03:00 committed by Simon Ser
parent 4102b722d9
commit 4990ed99eb
2 changed files with 15 additions and 0 deletions
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13
backend/x11/output.c
View file

@ -63,6 +63,10 @@ static bool output_set_custom_mode(struct wlr_output *wlr_output,
struct wlr_x11_output *output = get_x11_output_from_output(wlr_output);
struct wlr_x11_backend *x11 = output->x11;
if (width == output->win_width && height == output->win_height) {
return true;
}
const uint32_t values[] = { width, height };
xcb_void_cookie_t cookie = xcb_configure_window_checked(
x11->xcb, output->win,
@ -76,6 +80,9 @@ static bool output_set_custom_mode(struct wlr_output *wlr_output,
return false;
}
output->win_width = width;
output->win_height = height;
// Move the pointer to its new location
update_x11_pointer_position(output, output->x11->time);
@ -598,6 +605,9 @@ struct wlr_output *wlr_x11_output_create(struct wlr_backend *backend) {
x11->screen->root, 0, 0, wlr_output->width, wlr_output->height, 0,
XCB_WINDOW_CLASS_INPUT_OUTPUT, x11->visualid, mask, values);
output->win_width = wlr_output->width;
output->win_height = wlr_output->height;
struct {
xcb_input_event_mask_t head;
xcb_input_xi_event_mask_t mask;
@ -659,6 +669,9 @@ void handle_x11_configure_notify(struct wlr_x11_output *output,
return;
}
output->win_width = ev->width;
output->win_height = ev->height;
struct wlr_output_state state;
wlr_output_state_init(&state);
wlr_output_state_set_custom_mode(&state, ev->width, ev->height, 0);

2
include/backend/x11.h
View file

@ -35,6 +35,8 @@ struct wlr_x11_output {
xcb_window_t win;
xcb_present_event_t present_event_id;
int32_t win_width, win_height;
struct wlr_pointer pointer;
struct wlr_touch touch;