Add support for mouse over colors

README.md

@@ -148,6 +148,8 @@ Multiple items can have multiple sets of options.
 | fg              | Foreground (text) color                            | String/gradient/pattern       |
 | bg_focus        | Background of focussed items                       | String/gradient/pattern       |
 | fg_focus        | Foreground of focussed items                       | String/gradient/pattern       |
+| bg_hover        | Background of hoverred items                       | String/gradient/pattern       |
+| fg_hover        | Foreground of hoverred items                       | String/gradient/pattern       |
 | bg_alternate    | Alternate background color                         | String/gradient/pattern       |
 | bg_highlight    | Highlight background color                         | String/gradient/pattern       |
 | bg_header       | Header (see widgets section) color                 | String/gradient/pattern       |

bar.lua

@@ -113,6 +113,9 @@ local function setup_item(data,item,args)
   if data.select_on == base.event.HOVER then
     item.widget:connect_signal("mouse::enter", function() item.selected = true end)
     item.widget:connect_signal("mouse::leave", function() item.selected = false end)
+  else
+    item.widget:connect_signal("mouse::enter", function() item.hover = true end)
+    item.widget:connect_signal("mouse::leave", function() item.hover = false end)
   end
 
   -- Setup buttons
@@ -126,7 +129,7 @@ local function new(args)
     args.internal.set_position   = args.internal.set_position   or set_position
     args.internal.setup_drawable = args.internal.setup_drawable or setup_drawable
     args.internal.setup_item     = args.internal.setup_item     or setup_item
-    args.item_style = item_style
+    args.item_style = args.item_style or item_style
     args.sub_menu_on = args.sub_menu_on or base.event.BUTTON1
     local ret = base(args)
     ret:connect_signal("clear::menu",function(_,vis)

base.lua

@@ -27,11 +27,26 @@ local module = {
     LEAVE    = 1001,
   },
   item_flags     = {
-    SELECTED = 1,
+    NONE     = 0,
-    HOVERED  = 2,
+    SELECTED = 1, -- Single item selected
-    PRESSED  = 3,
+    HOVERED  = 2, -- Mouse hover
-    URGENT   = 4,
+    PRESSED  = 3, -- Mouse pressed
-    USED     = 5,
+    URGENT   = 4, -- Need attention
+    USED     = 5, -- Common flag
+    DISABLED = 6, -- Cannot be interacted with
+    CHECKED  = 7, -- When checkbox isn't enough
+
+    -- Implementation defined flags
+    USR1     = 101,
+    USR2     = 102,
+    USR3     = 103,
+    USR4     = 104,
+    USR5     = 105,
+    USR6     = 106,
+    USR7     = 107,
+    USR8     = 108,
+    USR9     = 109,
+    USR10    = 110,
   }
 }
 
@@ -284,6 +299,8 @@ local function new(args)
       bg_highlight    = args.bg_highlight or beautiful.menu_bg_highlight or beautiful.bg_highlight or beautiful.bg_normal,
       bg_header       = args.bg_header    or beautiful.menu_bg_header or beautiful.fg_normal,
       bg_prefix       = args.bg_prefix    or nil,
+      bg_hover        = args.bg_hover     or nil,
+      fg_hover        = args.fg_hover     or nil,
       border_color    = args.border_color or beautiful.menu_border_color or beautiful.border_color or "#333333",
       border_width    = args.border_width or beautiful.menu_border_width or beautiful.border_width or 3,
       separator_color = args.separator_color or beautiful.menu_separator_color or args.border_color or beautiful.menu_border_color or beautiful.border_color or "#333333",

impl/tasklist/init.lua

@@ -104,7 +104,11 @@ local function focus(c)
 end
 
 local function new(screen)
-  local cache,menu = setmetatable({}, { __mode = 'k' }),radical.flexbar{select_on=radical.base.event.NEVER,fg=beautiful.fg_normal,bg_focus=beautiful.taglist_bg_image_selected2}
+  local cache,menu = setmetatable({}, { __mode = 'k' }),radical.flexbar {
+    select_on=radical.base.event.NEVER,
+    fg       = beautiful.fg_normal,
+    bg_focus = beautiful.taglist_bg_image_selected2 or beautiful.bg_focus
+  }
 
   -- Clear the menu and repopulate it
   local function load_clients(t)

item_layout/horizontal.lua

@@ -71,6 +71,14 @@ function module:setup_checked(item,data)
   end
 end
 
+-- Setup hover
+function module:setup_hover(item,data)
+  item._internal.set_map.hover = function(value)
+    local item_style = item.item_style or data.item_style
+    item_style(data,item,{value and 2--[[HOVER]] or nil,item.selected and 1 or nil})
+  end
+end
+
 -- Create sub_menu arrows
 local sub_arrow = nil
 function module:setup_sub_menu_arrow(item,data)
@@ -153,6 +161,9 @@ local function create_item(item,data,args)
     right:add(ck)
   end
 
+  -- Hover
+  module:setup_hover(item,data)
+
   -- Sub_arrow
   local ar = module:setup_sub_menu_arrow(item,data)
   if ar then

item_style/arrow_prefix.lua

@@ -69,6 +69,8 @@ local function draw(data,item,args)
 
   if flags[base.item_flags.SELECTED] or (item._tmp_menu) then
     item.widget:set_bg(args.color or data.bg_focus)
+  elseif flags[base.item_flags.HOVERED] then
+    item.widget:set_bg(args.color or data.bg_hover)
   else
     item.widget:set_bg(args.color or nil)
   end

item_style/arrow_single.lua

@@ -40,6 +40,10 @@ local function draw(data,item,args)
 
   if flags[base.item_flags.SELECTED] or (item._tmp_menu) then
     item.widget:set_bg(args.color or data.bg_focus)
+  elseif #flags > 0 then
+    if flags[base.item_flags.HOVERED] then
+      item.widget:set_bg(args.color or data.bg_hover)
+    end
   else
     item.widget:set_bg(args.color or nil)
   end

layout/vertical.lua

@@ -127,6 +127,9 @@ function module:setup_item(data,item,args)
   if data.select_on == base.event.HOVER then
     item.widget:connect_signal("mouse::enter", function() item.selected = true end)
     item.widget:connect_signal("mouse::leave", function() item.selected = false end)
+  else
+    item.widget:connect_signal("mouse::enter", function() item.hover = true end)
+    item.widget:connect_signal("mouse::leave", function() item.hover = false end)
   end
   data._internal.layout:add(item)