Merge pull request #323 from actionless/grow-master

Add "master_fill_policy" tag property and its support in "tile" and "corner" layouts

Closes https://github.com/awesomeWM/awesome/pull/323/files.

lib/awful/layout/init.lua

@@ -192,6 +192,7 @@ capi.tag.connect_signal("property::windowfact", arrange_tag)
 capi.tag.connect_signal("property::selected", arrange_tag)
 capi.tag.connect_signal("property::activated", arrange_tag)
 capi.tag.connect_signal("property::useless_gap", arrange_tag)
+capi.tag.connect_signal("property::master_fill_policy", arrange_tag)
 capi.tag.connect_signal("tagged", arrange_tag)
 
 for s = 1, capi.screen.count() do

lib/awful/layout/suit/corner.lua

@@ -89,7 +89,7 @@ local function do_corner(p, orientation)
     row.x_increment = row.win_width
     row.win_idx = 0
 
-    -- Extend master if there is only a few windows
+    -- Extend master if there is only a few windows and "expand" policy is set
     if #cls < 3 then
         if row_privileged then
             master.x = wa.x
@@ -98,8 +98,13 @@ local function do_corner(p, orientation)
             master.y = wa.y
             master.height = wa.height
         end
-        if #cls < 2 then
-            master = wa
+        if #cls < 2  then
+            if tag.getmfpol(t) == "expand" then
+                master = wa
+            else
+                master.x = master.x + (wa.width - master.width)/2
+                master.y = master.y + (wa.height - master.height)/2
+            end
         end
     end
 

lib/awful/layout/suit/tile.lua

@@ -234,13 +234,17 @@ local function do_tile(param, orientation)
         place_master = false
     end
 
+    local grow_master = tag.getmfpol(t) == "expand"
     -- this was easier than writing functions because there is a lot of data we need
     for d = 1,2 do
         if place_master and nmaster > 0 then
             local size = wa[width]
-            if nother > 0 then
+            if nother > 0 or not grow_master then
                 size = math.min(wa[width] * mwfact, wa[width] - (coord - wa[x]))
             end
+            if nother == 0 and not grow_master then
+              coord = coord + (wa[width] - size)/2
+            end
             if not data[0] then
                 data[0] = {}
             end

lib/awful/tag.lua

@@ -410,6 +410,37 @@ function tag.getgap(t)
     return tag.getproperty(t, "useless_gap") or beautiful.useless_gap or 0
 end
 
+--- Set size fill policy for the master client(s)
+-- @tparam string policy Can be set to
+-- "expand" (fill all the available workarea) or
+-- "mwfact" (fill only an area inside the master width factor)
+-- @tparam[opt=tag.selected()] tag t The tag to modify
+function tag.setmfpol(policy, t)
+    local t = t or tag.selected()
+    tag.setproperty(t, "master_fill_policy", policy)
+end
+
+--- Toggle size fill policy for the master client(s)
+-- between "expand" and "mwfact"
+-- @tparam tag t The tag to modify, if null tag.selected() is used.
+function tag.togglemfpol(t)
+    if tag.getmfpol(t) == "expand" then
+        tag.setmfpol("mwfact", t)
+    else
+        tag.setmfpol("expand", t)
+    end
+end
+
+--- Get size fill policy for the master client(s)
+-- @tparam[opt=tag.selected()] tag t The tag
+-- @treturn string Possible values are
+-- "expand" (fill all the available workarea, default one) or
+-- "mwfact" (fill only an area inside the master width factor)
+function tag.getmfpol(t)
+    local t = t or tag.selected()
+    return tag.getproperty(t, "master_fill_policy") or "expand"
+end
+
 --- Set the number of master windows.
 -- @param nmaster The number of master windows.
 -- @param[opt] t The tag.
@@ -703,6 +734,7 @@ capi.tag.add_signal("property::icon_only")
 capi.tag.add_signal("property::layout")
 capi.tag.add_signal("property::mwfact")
 capi.tag.add_signal("property::useless_gap")
+capi.tag.add_signal("property::master_fill_policy")
 capi.tag.add_signal("property::ncol")
 capi.tag.add_signal("property::nmaster")
 capi.tag.add_signal("property::windowfact")