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Fix Output.prevWindow/nextWindow

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Before, they were ignoring tags, so you could cycle to windows on
other tags instead of only the same tag.
This commit is contained in:
Ben Buhse 2026-02-08 15:49:05 -06:00
commit 54421ef8f5
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1 changed files with 25 additions and 10 deletions
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35
src/Output.zig
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@ -87,20 +87,35 @@ pub fn destroy(output: *Output) void {
utils.allocator.destroy(output);
}
/// Get the next window in the list, wrapping to first if at end
/// Get the next window in the list that shares at least one tag
/// with the output, wrapping to first if at end.
pub fn nextWindow(output: *Output, current: *Window) ?*Window {
const next_link = current.link.next orelse return output.windows.first();
// If we've reached the sentinel (head's link), wrap to first
if (next_link == &output.windows.link) return output.windows.first();
return @fieldParentPtr("link", next_link);
var link = current.link.next orelse unreachable;
// Walk forward, wrapping at sentinel, until we find a visible window or return to current
while (true) {
// If this is the sentinel, wrap to the beginning
if (link == &output.windows.link) {
link = link.next orelse unreachable;
}
const window: *Window = @fieldParentPtr("link", link);
if (window.tags & output.tags != 0 or window == current) return window;
link = link.next orelse unreachable;
}
}
/// Get the previous window in the list, wrapping to last if at beginning
/// Get the previous window in the list that shares at least one tag
/// with the output, wrapping to the last if at beginning
pub fn prevWindow(output: *Output, current: *Window) ?*Window {
const prev_link = current.link.prev orelse return output.windows.last();
// If we've reached the sentinel (head's link), wrap to last
if (prev_link == &output.windows.link) return output.windows.last();
return @fieldParentPtr("link", prev_link);
var link = current.link.prev orelse unreachable;
while (true) {
// If this is the sentinel, wrap to the end
if (link == &output.windows.link) {
link = link.prev orelse unreachable;
}
const window: *Window = @fieldParentPtr("link", link);
if (window.tags & output.tags != 0 or window == current) return window;
link = link.prev orelse unreachable;
}
}
// Used for the river_output_v1 interface