Implement floating_modifier and mouse operations for floating views

This implements the following:

* `floating_modifier` configuration directive
* Drag a floating window by its title bar
* Hold mod + drag a floating window from anywhere
* Resize a floating view by dragging the border
* Resize a floating view by holding mod and right clicking anywhere on
the view
* Resize a floating view and keep aspect ratio by holding shift while
resizing using either method
* Mouse cursor turns into resize when hovering floating border or corner

1 files changed, 1 insertions, 0 deletions

diff --git a/sway/meson.build b/sway/meson.build
index 09bc40b8..f4fdc8ea 100644
--- a/sway/meson.build
+++ b/sway/meson.build
@@ -42,6 +42,7 @@ sway_sources = files(
         'commands/exec_always.c',
         'commands/floating.c',
         'commands/floating_minmax_size.c',
+        'commands/floating_modifier.c',
         'commands/focus.c',
         'commands/focus_follows_mouse.c',
         'commands/focus_wrapping.c',