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desktop-shell: support disallow-output-changed-move

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With this, when unplugging an extended display, the view displayed on
the extended display won't be re-positioned to other displays.

On some embedded devices, the views are often fullscreen displayed, even
on the extended displays. When disconnecting the extended displays, the
views are not desired to be moved onto the existing displays. Without
this change, we can see the view flash across the existing displays
even though the UI program hides the view as soon as it can, which is
unexpected.

Signed-off-by: Paul Pu <hui.pu@gehealthcare.com>
This commit is contained in:
Paul Pu 2025-01-10 14:46:07 +08:00 • committed by Marius Vlad
parent 89f77176b6
commit ddb6225338
3 changed files with 15 additions and 2 deletions
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12
desktop-shell/shell.c
View file

@ -524,6 +524,7 @@ shell_configuration(struct desktop_shell *shell)
struct weston_config *config;
char *s, *client;
bool allow_zap;
bool disallow_output_changed_move;
config = wet_get_config(shell->compositor);
section = weston_config_get_section(config, "shell", NULL, NULL);
@ -536,6 +537,11 @@ shell_configuration(struct desktop_shell *shell)
"allow-zap", &allow_zap, true);
shell->allow_zap = allow_zap;
weston_config_section_get_bool(section,
"disallow-output-changed-move",
&disallow_output_changed_move, false);
shell->disallow_output_changed_move = disallow_output_changed_move;
shell->binding_modifier = weston_config_get_binding_modifier(config, MODIFIER_SUPER);
weston_config_section_get_string(section, "animation", &s, "none");
@ -4568,7 +4574,9 @@ shell_output_destroy(struct shell_output *shell_output)
{
struct desktop_shell *shell = shell_output->shell;
shell_for_each_layer(shell, shell_output_changed_move_layer, NULL);
if (!shell->disallow_output_changed_move) {
shell_for_each_layer(shell, shell_output_changed_move_layer, NULL);
}
if (shell_output->panel_surface) {
wl_list_remove(&shell_output->panel_surface_listener.link);
@ -4674,7 +4682,7 @@ create_shell_output(struct desktop_shell *shell,
&shell_output->destroy_listener);
wl_list_insert(shell->output_list.prev, &shell_output->link);
if (wl_list_length(&shell->output_list) == 1)
if (!shell->disallow_output_changed_move && wl_list_length(&shell->output_list) == 1)
shell_for_each_layer(shell,
shell_output_changed_move_layer, NULL);

1
desktop-shell/shell.h
View file

@ -142,6 +142,7 @@ struct desktop_shell {
} fade;
bool allow_zap;
bool disallow_output_changed_move;
uint32_t binding_modifier;
enum animation_type win_animation_type;
enum animation_type win_close_animation_type;

4
man/weston.ini.man
View file

@ -467,6 +467,10 @@ By default, no animation is used.
whether the shell should quit when the Ctrl-Alt-Backspace key combination is
pressed
.TP 7
.BI "disallow-output-changed-move=" false
whether the shell should move client's window to a different/another output than the one
assigned initially and is no longer available/enabled/plugged in.
.TP 7
.BI "binding-modifier=" ctrl
sets the modifier key used for common bindings (string), such as moving
surfaces, resizing, rotating, switching, closing and setting the transparency