bindings: fix/improve desktop-switching

Fix accessing desktops 11/12, as F11/F12 keycodes are discontinous with
F1-F10.

Add a set of bindings to send a client to specified desk.

1 files changed, 28 insertions, 14 deletions

diff --git a/bindings.lua b/bindings.lua
index fb0f331..3746ae3 100644
--- a/bindings.lua
+++ b/bindings.lua
@@ -175,22 +175,36 @@ function M.create(workspace)
                       end))
     end
 
+    -- Switching between desktops
     for i = 1, 12 do
+        local keycode
+        if i <= 10 then
+            -- F1--10 are codes 67-76
+            keycode = 66 + i
+        else
+            -- F11-12 are codes 95-96
+            keycode = 84 + i
+        end
+
         globalkeys = gears.table.join(globalkeys,
-            -- View tag only.
-            awful.key({ modkey }, "#" .. i + 66,
-                      function ()
-                            local screen = mouse.screen
-                            workspace:view(screen, i)
-                      end),
-            -- Move client to tag.
-            awful.key({ modkey, "Shift" }, "#" .. i + 9,
-                      function ()
-                          if client.focus then
-                              local c = client.focus
-                              workspace:move_client(c, workspace.screen_state[c.screen].desktop_idx, i)
-                         end
-                      end))
+            -- View auto-selected page on desktop <i>
+            awful.key({ modkey }, "#" .. keycode,
+                function ()
+                    local screen = mouse.screen
+                    workspace:view(screen, i)
+                end),
+
+            -- Move focused client to empty (or first, if all non-empty)
+            -- page on desktop <i>
+            awful.key({ modkey, "Shift" }, "#" .. keycode,
+                function ()
+                    if client.focus then
+                        local c = client.focus
+                        local desk = workspace.desktops[i]
+                        local page_idx = desk:find_empty_page() or 1
+                        workspace:move_client(c, i, page_idx)
+                    end
+                end))
     end
 
     local clientkeys = gears.table.join(