floating_maximum_size: change default behavior

This changes the way zero (which is the default) is interpreted for both
the width and height of `floating_maximum_size`. It now refers to the
width and height of the entire output layout, which matches i3's
behavior.

This also removes duplicated code to calculate the floating constraints
in three files. Before this, `container_init_floating` used two-thirds
of the workspace width/height as the max and the entire workspace
width/height was used everywhere else. Now, all callers use a single
function `floating_calculate_constraints`.

1 files changed, 3 insertions, 0 deletions

diff --git a/include/sway/tree/container.h b/include/sway/tree/container.h
index f7a4ac37..d2508994 100644
--- a/include/sway/tree/container.h
+++ b/include/sway/tree/container.h
@@ -212,6 +212,9 @@ void container_update_representation(struct sway_container *container);
  */
 size_t container_titlebar_height(void);
 
+void floating_calculate_constraints(int *min_width, int *max_width,
+		int *min_height, int *max_height);
+
 /**
  * Resize and center the container in its workspace.
  */