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Fix crash when fullscreen view closes on inactive workspace

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When a view unmaps, normally the surviving ancestor (ie. after reaping)
needs to be arranged. When a fullscreen view unmaps, it arranges the
workspace rather than the surviving ancestor, but didn't handle cases
where the workspace itself was reaped. This happens if the workspace is
not currently shown and the fullscreen view was the last container on
that workspace.

This commit rewrites this part of view_unmap so it's more readable, and
fixes the crash by not arranging the workspace if it's been reaped. Note
that it no longer arranges the output under any circumstance - this
wasn't required anyway.
This commit is contained in:
Ryan Dwyer 2018-08-03 17:55:58 +10:00
parent 5ac3509d54
commit 854c5fbec8
1 changed files with 9 additions and 10 deletions
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19
sway/tree/view.c
View file

@ -592,19 +592,18 @@ void view_unmap(struct sway_view *view) {
view->urgent_timer = NULL;
}
struct sway_container *ws = container_parent(view->swayc, C_WORKSPACE);
bool was_fullscreen = view->swayc->is_fullscreen;
struct sway_container *surviving_ancestor = container_destroy(view->swayc);
struct sway_container *parent;
if (container_is_fullscreen_or_child(view->swayc)) {
parent = container_destroy(view->swayc);
arrange_windows(ws->parent);
} else {
parent = container_destroy(view->swayc);
arrange_windows(parent);
}
if (parent->type >= C_WORKSPACE) { // if the workspace still exists
// If the workspace wasn't reaped
if (surviving_ancestor->type >= C_WORKSPACE) {
struct sway_container *ws = surviving_ancestor->type == C_WORKSPACE ?
surviving_ancestor :
container_parent(surviving_ancestor, C_WORKSPACE);
arrange_windows(was_fullscreen ? ws : surviving_ancestor);
workspace_detect_urgent(ws);
}
transaction_commit_dirty();
view->surface = NULL;
}