If the tokener parses incomplete json, it sets its error value to
json_tokener_continue. This means that extra json should be provided,
but the code was providing the entire object again. In the interest of
simplicity, the tokener is reset so that buffer_pos always points to the
start of the current object.
This was the source of numerous bugs, from hotplug events not being
received to segfaults because wl_display_roundtrip was making the
bar process unplug events while blocking in an iteration over all
outputs.
This now correctly handles an incoming json infinite array by shifting
most of the heavy listing to the json-c parser, as well as sending
multiple statuses at once. It also removes the struct
i3bar_protocol_state and moves its members into the status_line struct,
allowing the same buffer to be used for both protocols.
This now uses the getline function to receive the header, replacing
read_line_buffer, which has been deleted since it is otherwise unused.
Furthermore, once the protocol has been determined, the current status
is handled immediately to be shown (though this has not been added for
the i3bar protocol since it has not yet been rewritten to handle this).
This now uses getline to correctly handle multiple or long statuses. It
also removes the struct text_protocol_state and moves its members into
the status_line struct.
When destroying an idle-inhibiting client, idle_inhibit_v1_check_active can get
called from transaction_progress_queue on a view with a null container.
view_is_visible does not handle a view in this state.
seat_get_active_child is used to get the active tiling child in a few
places, such as outputs getting their active workspace and
tabbed/stacked containers getting their visible child. When a workspace
uses a tabbed or stacked layout and contains a focused floating view,
calling seat_get_active_child on the workspace would incorrectly return
the floating view. This changes it so it will return the tiling child.
This fixes the following bug:
* Create layout T[view view] then float one of the views
* Attempt to click the tiling view to give it focus - it wouldn't work
because seat_get_active_child would return the floating view
* Create layout T[view view]
* Move the cursor into the title bar area
* Close both views
Sway would crash because container_at_tabbed would attempt to divide by
zero when there are no children.
The children check isn't needed for the stacked function because it
doesn't divide anything by the number of children.
Fixes#2636.
