Add proxy signals for item mouse events (issue #10 )

README.md

@@ -235,8 +235,27 @@ here is the list:
 | append           | Append an existing (but unused) item         | the item              |  ---   |
 
 
-Menu also emit many signals, the syntax is usually `PROPERTY_NAME::changed`. The
+Menu also emit many signals, the syntax is usually `PROPERTY_NAME::changed`.
-exeptions are `item::moved`, `item::swapped`, `item::removed`, `item::appended`
+Some others are `item::moved`, `item::swapped`, `item::removed`, `item::appended`
+
+Most item_layout also repackage the default widget signals. It usually does the
+same as using the `buttonX` menu attributes, but is preferrable in some scenarios
+
+|       Name        |                Description         |      Arguments      |
+| ----------------- | ---------------------------------- | ------------------- |
+| button::press     | A button press                     | menu,item,button_id |
+| button::release   | A button release                   | menu,item,button_id |
+| mouse::enter      | When the mouse enter               | menu,item           |
+| mouse::leave      | When the mouse leave               | menu,item           |
+
+An example of how to use them:
+
+```lua
+    local menubar = radical.bar{}
+    menubar:connect_signal("button::press",function(data,item,button)
+        print("Foo!",item.text,button,data.rowcount)
+    end)
+```
 
 ###Beautiful options
 

impl/tasklist/init.lua

@@ -123,7 +123,7 @@ local function new(screen)
     bg_hover   = beautiful.menu_bg_focus,
     disable_markup = true,
     overlay = function(data,item,cd,w,h)
-      print("foo!")
+--       print("foo!")
     end
   }
 

item_layout/centerred.lua

@@ -32,6 +32,19 @@ local function create_item(item,data,args)
   item._internal.text_w = text
   item._internal.icon_w = nil
   item._internal.margin_w = m
+
+  bg:connect_signal("button::press",function(b,t,s,id,e)
+    data:emit_signal("button::press",data,item,id)
+  end)
+  bg:connect_signal("button::release",function(b,t)
+    data:emit_signal("button::release",data,item,id)
+  end)
+  bg:connect_signal("mouse::enter",function(b,t)
+    data:emit_signal("mouse::enter",data,item)
+  end)
+  bg:connect_signal("mouse::leave",function(b,t)
+    data:emit_signal("mouse::leave",data,item)
+  end)
   return bg
 end
 

item_layout/horizontal.lua

@@ -216,6 +216,19 @@ local function create_item(item,data,args)
   item._internal.icon_w = icon
   item._internal.margin_w = m
 
+  bg:connect_signal("button::press",function(b,t,s,id,e)
+    data:emit_signal("button::press",item,id)
+  end)
+  bg:connect_signal("button::release",function(b,t)
+    data:emit_signal("button::release",item,id)
+  end)
+  bg:connect_signal("mouse::enter",function(b,t)
+    data:emit_signal("mouse::enter",item)
+  end)
+  bg:connect_signal("mouse::leave",function(b,t)
+    data:emit_signal("mouse::leave",item)
+  end)
+
   return bg
 end
 

item_layout/icon.lua

@@ -95,6 +95,20 @@ local function create_item(item,data,args)
 
   item._internal.text_w = text_w
   item._internal.icon_w = icon
+
+  bg:connect_signal("button::press",function(b,t,s,id,e)
+    data:emit_signal("button::press",data,item,id)
+  end)
+  bg:connect_signal("button::release",function(b,t)
+    data:emit_signal("button::release",data,item,id)
+  end)
+  bg:connect_signal("mouse::enter",function(b,t)
+    data:emit_signal("mouse::enter",data,item)
+  end)
+  bg:connect_signal("mouse::leave",function(b,t)
+    data:emit_signal("mouse::leave",data,item)
+  end)
+
   return bg
 end