1. Fix focus when moving to same workspace.
If we have a single window on a workspace and we switch to the same
worksapce, focus_next will be the workspace container, rather than the
current window, so simply call con_descend_focused to ensure we set the
focus to a window.
2. Fix focus when moving a container to a visible workspace.
Call workspace_show before we attaching to new visible workspace, so we
don't get in the weird situation where target workspace has focused
window, but it isn't considered focused.
It now uses the container orientation (if it is appropriate, the last focused
one otherwise) to recurse. This works better if the target workspace is in
vertical orientation when you use right/left or if it is in horizontal
orientation but you use up/down.
Modify _tree_next() so that when we reach the workspace container:
1. Find the next corresponding output (screen) using the added
get_output_next().
2. If there is another output, find the visible workspace.
3. Call workspace_show on found workspace.
4. Find the appropriate window to focus (leftmost/rightmost, etc.) using
con_descend_direction, and then focus it.
I've only tested on horizontal monitors (left/right).
Generally, the traversal goes: numbered workspaces in order, and then
named workspaces in the order in which they appear in the tree.
Example:
Output 1: Output 2:
1 3 D C 2 4 B A
Traversal: 1, 2, 3, 4, D, C, B, A, 1, ...
Note, after the numbered workspaces, we traverse the named workspaces
from output 1, and then output 2, etc.
