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desktop: keep windows within output on scale change

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Fixes: #3195
This commit is contained in:
Johan Malm 2025-11-16 19:08:21 +00:00
parent 8ced055cb9
commit e4dca57c96
4 changed files with 150 additions and 0 deletions
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13
src/output.c
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@ -26,6 +26,7 @@
#include "common/mem.h"
#include "common/scene-helpers.h"
#include "config/rcxml.h"
#include "desktop-state.h"
#include "labwc.h"
#include "layers.h"
#include "node.h"
@ -791,6 +792,14 @@ handle_output_manager_apply(struct wl_listener *listener, void *data)
bool config_is_good = verify_output_config_v1(config);
/*
* Save old desktop state, specifically windows and scales for each
* output, so that window positions and sizes can be adjusted later.
*/
struct wl_list desktop_outputs;
wl_list_init(&desktop_outputs);
desktop_state_create(server, &desktop_outputs);
if (config_is_good && output_config_apply(server, config)) {
wlr_output_configuration_v1_send_succeeded(config);
} else {
@ -803,6 +812,10 @@ handle_output_manager_apply(struct wl_listener *listener, void *data)
output->wlr_output->scale);
}
/* Adjust windows if output scale(s) changed */
desktop_state_adjust_on_output_scale_change(server, &desktop_outputs);
desktop_state_destroy(&desktop_outputs);
/* Re-set cursor image in case scale changed */
cursor_update_focus(server);
cursor_update_image(&server->seat);