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output: introduce state struct

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This simplifies the handling of the current/pending tags and will be
used in the future for atomic layout updates involving layer surface
exclusive zones.
This commit is contained in:
Isaac Freund
2020-07-02 21:55:21 +02:00
parent 3b508688ea
commit 86386e84bc
11 changed files with 42 additions and 41 deletions
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11
river/Root.zig
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@ -207,25 +207,24 @@ fn commitTransaction(self: *Self) void {
while (output_it) |output_node| : (output_it = output_node.next) {
const output = &output_node.data;
// If there were pending focused tags, make them the current focus
if (output.pending_focused_tags) |tags| {
// Apply pending state of the output
if (output.pending.tags != output.current.tags) {
log.debug(
.output,
"changing current focus: {b:0>10} to {b:0>10}",
.{ output.current_focused_tags, tags },
.{ output.current.tags, output.pending.tags },
);
output.current_focused_tags = tags;
output.pending_focused_tags = null;
var it = output.status_trackers.first;
while (it) |node| : (it = node.next) node.data.sendFocusedTags();
}
output.current = output.pending;
var view_tags_changed = false;
var view_it = ViewStack(View).iterator(output.views.first, std.math.maxInt(u32));
while (view_it.next()) |view_node| {
const view = &view_node.view;
// Apply pending state
// Apply pending state of the view
view.pending_serial = null;
if (view.pending.tags != view.current.tags) view_tags_changed = true;
view.current = view.pending;