diff --git a/docs/common/wibox.ldoc b/docs/common/wibox.ldoc
index 4898fb33..050bb2b8 100644
--- a/docs/common/wibox.ldoc
+++ b/docs/common/wibox.ldoc
@@ -180,6 +180,22 @@
 -- @property shape
 -- @tparam gears.shape shape
 
+--- Forward the inputs to the client below the wibox.
+--
+-- This replace the `shape_input` mask with an empty area. All mouse and
+-- keyboard events are sent to the object (such as a client) positioned below
+-- this wibox. When used alongside compositing, it allows, for example, to have
+-- a subtle transparent wibox on top a fullscreen client to display important
+-- data such as a low battery warning.
+--
+-- **Signal:**
+--
+--  * *property::input_passthrough*
+--
+-- @property input_passthrough
+-- @param[opt=false] boolean
+-- @see shape_input
+
 --- Get or set mouse buttons bindings to a wibox.
 --
 -- @param buttons_table A table of buttons objects, or nothing.
diff --git a/docs/common/wibox_constructor.ldoc b/docs/common/wibox_constructor.ldoc
new file mode 100644
index 00000000..e93cc226
--- /dev/null
+++ b/docs/common/wibox_constructor.ldoc
@@ -0,0 +1,22 @@
+ @tparam integer args.border_width Border width.
+-- @tparam string args.border_color Border color.
+-- @tparam[opt=false] boolean args.ontop On top of other windows.
+-- @tparam string args.cursor The mouse cursor.
+-- @tparam boolean args.visible Visibility.
+-- @tparam[opt=1] number args.opacity The opacity, between 0 and 1.
+-- @tparam string args.type The window type (desktop, normal, dock, …).
+-- @tparam integer args.x The x coordinates.
+-- @tparam integer args.y The y coordinates.
+-- @tparam integer args.width The width.
+-- @tparam integer args.height The height.
+-- @tparam screen args.screen The wibox screen.
+-- @tparam wibox.widget args.widget The widget that the wibox displays.
+-- @param args.shape_bounding The wibox’s bounding shape as a (native) cairo surface.
+-- @param args.shape_clip The wibox’s clip shape as a (native) cairo surface.
+-- @param args.shape_input The wibox’s input shape as a (native) cairo surface.
+-- @tparam color args.bg The background.
+-- @tparam surface args.bgimage The background image of the drawable.
+-- @tparam color args.fg The foreground (text) color.
+-- @tparam gears.shape args.shape The shape.
+-- @tparam[opt=false] boolean args.input_passthrough If the inputs are
+--  forward to the element below.
diff --git a/docs/load_ldoc.cmake b/docs/load_ldoc.cmake
index d8f6fe21..a783e7db 100644
--- a/docs/load_ldoc.cmake
+++ b/docs/load_ldoc.cmake
@@ -13,8 +13,11 @@ foreach(doc_file_name ${doc_files})
     # Remove the file extension
     string(REGEX REPLACE "\\.ldoc" "" DOC_FILE_NAME ${doc_file_name})
 
+    # There is a trailing \n, remove it or it cannot be included in existing blocks
+    string(REGEX REPLACE "\n$" "" doc_file_content "${doc_file_content}")
+
     # Create a new variable usable from lua files
-    set(DOC_${DOC_FILE_NAME}_COMMON "Imported documentation\n\n${doc_file_content}")
+    set(DOC_${DOC_FILE_NAME}_COMMON "${doc_file_content}")
 endforeach()
 
 # vim: filetype=cmake:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80:foldmethod=marker
diff --git a/lib/awful/wibar.lua b/lib/awful/wibar.lua
index 5e96a2b8..bdb3da88 100644
--- a/lib/awful/wibar.lua
+++ b/lib/awful/wibar.lua
@@ -339,37 +339,19 @@ end
 -- You can also set the screen key with a screen number to attach the wibox.
 -- If not specified, the primary screen is assumed.
 -- @see wibox
--- @tparam[opt=nil] table arg
--- @tparam string arg.position The position.
--- @tparam string arg.stretch If the wibar need to be stretched to fill the screen.
--- @tparam integer arg.border_width Border width.
--- @tparam string arg.border_color Border color.
--- @tparam boolean arg.ontop On top of other windows.
--- @tparam string arg.cursor The mouse cursor.
--- @tparam boolean arg.visible Visibility.
--- @tparam number arg.opacity The wibar's opacity, between 0 and 1.
--- @tparam string arg.type The window type (desktop, normal, dock, …).
--- @tparam integer arg.x The x coordinates.
--- @tparam integer arg.y The y coordinates.
--- @tparam integer arg.width The wibar's width.
--- @tparam integer arg.height The wibar's height.
--- @tparam screen arg.screen The wibox screen.
--- @tparam wibox.widget arg.widget The widget that the wibox displays.
--- @param arg.shape_bounding The wibox’s bounding shape as a (native) cairo surface.
--- @param arg.shape_clip The wibox’s clip shape as a (native) cairo surface.
--- @param arg.shape_input The wibox’s input shape as a (native) cairo surface.
--- @tparam color arg.bg The wibar's background.
--- @tparam surface arg.bgimage The background image of the drawable.
--- @tparam color arg.fg The wibar's foreground (text) color.
+-- @tparam[opt=nil] table args
+-- @tparam string args.position The position.
+-- @tparam string args.stretch If the wibar need to be stretched to fill the screen.
+--@DOC_wibox_constructor_COMMON@
 -- @return The new wibar
 -- @function awful.wibar
-function awfulwibar.new(arg)
-    arg = arg or {}
-    local position = arg.position or "top"
+function awfulwibar.new(args)
+    args = args or {}
+    local position = args.position or "top"
     local has_to_stretch = true
-    local screen = get_screen(arg.screen or 1)
+    local screen = get_screen(args.screen or 1)
 
-    arg.type = arg.type or "dock"
+    args.type = args.type or "dock"
 
     if position ~= "top" and position ~="bottom"
             and position ~= "left" and position ~= "right" then
@@ -379,48 +361,48 @@ function awfulwibar.new(arg)
 
     -- Set default size
     if position == "left" or position == "right" then
-        arg.width = arg.width or beautiful["wibar_width"]
-            or math.ceil(beautiful.get_font_height(arg.font) * 1.5)
-        if arg.height then
+        args.width = args.width or beautiful["wibar_width"]
+            or math.ceil(beautiful.get_font_height(args.font) * 1.5)
+        if args.height then
             has_to_stretch = false
-            if arg.screen then
-                local hp = tostring(arg.height):match("(%d+)%%")
+            if args.screen then
+                local hp = tostring(args.height):match("(%d+)%%")
                 if hp then
-                    arg.height = math.ceil(screen.geometry.height * hp / 100)
+                    args.height = math.ceil(screen.geometry.height * hp / 100)
                 end
             end
         end
     else
-        arg.height = arg.height or beautiful["wibar_height"]
-            or math.ceil(beautiful.get_font_height(arg.font) * 1.5)
-        if arg.width then
+        args.height = args.height or beautiful["wibar_height"]
+            or math.ceil(beautiful.get_font_height(args.font) * 1.5)
+        if args.width then
             has_to_stretch = false
-            if arg.screen then
-                local wp = tostring(arg.width):match("(%d+)%%")
+            if args.screen then
+                local wp = tostring(args.width):match("(%d+)%%")
                 if wp then
-                    arg.width = math.ceil(screen.geometry.width * wp / 100)
+                    args.width = math.ceil(screen.geometry.width * wp / 100)
                 end
             end
         end
     end
 
-    arg.screen = nil
+    args.screen = nil
 
     -- The C code scans the table directly, so metatable magic cannot be used.
     for _, prop in ipairs {
         "border_width", "border_color", "font", "opacity", "ontop", "cursor",
         "bgimage", "bg", "fg", "type", "stretch", "shape"
     } do
-        if (arg[prop] == nil) and beautiful["wibar_"..prop] ~= nil then
-            arg[prop] = beautiful["wibar_"..prop]
+        if (args[prop] == nil) and beautiful["wibar_"..prop] ~= nil then
+            args[prop] = beautiful["wibar_"..prop]
         end
     end
 
-    local w = wibox(arg)
+    local w = wibox(args)
 
     w.screen   = screen
     w._screen  = screen --HACK When a screen is removed, then getbycoords wont work
-    w._stretch = arg.stretch == nil and has_to_stretch or arg.stretch
+    w._stretch = args.stretch == nil and has_to_stretch or args.stretch
 
     w.get_position = get_position
     w.set_position = set_position
@@ -429,7 +411,7 @@ function awfulwibar.new(arg)
     w.set_stretch = set_stretch
     w.remove      = remove
 
-    if arg.visible == nil then w.visible = true end
+    if args.visible == nil then w.visible = true end
 
     -- `w` needs to be inserted in `wiboxes` before reattach or its own offset
     -- will not be taken into account by the "older" wibars when `reattach` is
diff --git a/lib/wibox/init.lua b/lib/wibox/init.lua
index aa027bcb..a8037954 100644
--- a/lib/wibox/init.lua
+++ b/lib/wibox/init.lua
@@ -137,11 +137,6 @@ function wibox:_apply_shape()
     img:finish()
 end
 
---- Set the wibox shape.
--- @property shape
--- @tparam gears.shape A gears.shape compatible function.
--- @see gears.shape
-
 function wibox:set_shape(shape)
     self._shape = shape
     self:_apply_shape()
@@ -151,6 +146,24 @@ function wibox:get_shape()
     return self._shape
 end
 
+function wibox:set_input_passthrough(value)
+    rawset(self, "_input_passthrough", value)
+
+    if not value then
+        self.shape_input = nil
+    else
+        local img = cairo.ImageSurface(cairo.Format.A1, 0, 0)
+        self.shape_input = img._native
+        img:finish()
+    end
+
+    self:emit_signal("property::input_passthrough", value)
+end
+
+function wibox:get_input_passthrough()
+    return self._input_passthrough
+end
+
 function wibox:get_screen()
     if self.screen_assigned and self.screen_assigned.valid then
         return self.screen_assigned
@@ -223,25 +236,7 @@ end
 
 --- Create a wibox.
 -- @tparam[opt=nil] table args
--- @tparam integer args.border_width Border width.
--- @tparam string args.border_color Border color.
--- @tparam boolean args.ontop On top of other windows.
--- @tparam string args.cursor The mouse cursor.
--- @tparam boolean args.visible Visibility.
--- @tparam number args.opacity The opacity of the wibox, between 0 and 1.
--- @tparam string args.type The window type (desktop, normal, dock, …).
--- @tparam integer args.x The x coordinates.
--- @tparam integer args.y The y coordinates.
--- @tparam integer args.width The width of the wibox.
--- @tparam integer args.height The height of the wibox.
--- @tparam screen args.screen The wibox screen.
--- @tparam wibox.widget args.widget The widget that the wibox displays.
--- @param args.shape_bounding The wibox’s bounding shape as a (native) cairo surface.
--- @param args.shape_clip The wibox’s clip shape as a (native) cairo surface.
--- @param args.shape_input The wibox’s input shape as a (native) cairo surface.
--- @tparam color args.bg The background of the wibox.
--- @tparam surface args.bgimage The background image of the drawable.
--- @tparam color args.fg The foreground (text) of the wibox.
+--@DOC_wibox_constructor_COMMON@
 -- @treturn wibox The new wibox
 -- @function .wibox
 
@@ -324,7 +319,13 @@ local function new(args)
         ret:set_screen ( args.screen  )
     end
 
-    ret.shape = args.shape
+    if args.shape then
+        ret.shape = args.shape
+    end
+
+    if args.screen then
+        ret.input_passthrough = args.input_passthrough
+    end
 
     return ret
 end
diff --git a/tests/test-wibox-shape.lua b/tests/test-wibox-shape.lua
index 62166f10..1d56e1e1 100644
--- a/tests/test-wibox-shape.lua
+++ b/tests/test-wibox-shape.lua
@@ -18,14 +18,106 @@ local wb = wibox {
 wb:geometry(screen[1].geometry)
 wb.visible = true
 
-runner.run_steps({
+local count = 0
+
+local steps = {
     function()
         assert(wb.shape == shape.powerline)
         assert(wb.shape_bounding) -- This is a memory leak! Don't copy!
         if was_drawn then
             return true
         end
+    end,
+    -- Remove the shape and test the input
+    function()
+        wb.shape = nil
+        wb.input_passthrough = false
+        wb:connect_signal("button::press", function()
+            count = count + 1
+        end)
+
+        wb:geometry {
+            x      = 0,
+            y      = 100,
+            width  = 101,
+            height = 101,
+        }
+        wb.border_width = 0
+
+        return true
     end
-})
+}
+
+-- Emulate a click.
+-- Each pair of the `...` corresponds to a point.
+local function click(...)
+    local args = {...}
+    table.insert(steps, function()
+        for i = 0, math.floor(#args/2)-1 do
+            local x, y = args[i*2+1], args[i*2+2]
+            mouse.coords{x=x, y=y}
+            assert(mouse.coords().x == x and mouse.coords().y == y)
+            root.fake_input("button_release", 1)
+            root.fake_input("button_press", 1)
+        end
+
+        awesome.sync()
+
+        return true
+    end)
+end
+
+local function check_count(cnt)
+    table.insert(steps, function()
+        return cnt == count
+    end)
+end
+
+-- Check each corner
+click(0 , 100,
+      99, 100,
+      99, 199,
+      0 , 199
+)
+
+check_count(4)
+
+table.insert(steps, function()
+    wb.input_passthrough = true
+    count = 0
+    return true
+end)
+
+-- Do it again
+click(0 , 100,
+      99, 100,
+      99, 199,
+      0 , 199
+)
+
+-- It's passthrough, so there should be no recorded clicks.
+check_count(0)
+
+table.insert(steps, function()
+    wb.input_passthrough = false
+    count = 0
+    return true
+end)
+
+table.insert(steps, function()
+    awesome.sync()
+    count = 0
+    return true
+end)
+
+-- One last time
+click(0 , 100,
+      99, 100,
+      99, 199,
+      0 , 199
+)
+check_count(4)
+
+runner.run_steps(steps)
 
 -- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80