diff --git a/.travis.yml b/.travis.yml
index 86e299bd8..2ee0b22ba 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,6 +12,7 @@ env:
   - EMULATE_READER=1
 
 cache:
+  apt: true
   directories:
     - $HOME/.ccache
 
diff --git a/frontend/apps/reader/modules/readerconfig.lua b/frontend/apps/reader/modules/readerconfig.lua
index 10c4c281a..6dd0d0ffe 100644
--- a/frontend/apps/reader/modules/readerconfig.lua
+++ b/frontend/apps/reader/modules/readerconfig.lua
@@ -13,6 +13,7 @@ local ReaderConfig = InputContainer:new{
 }
 
 function ReaderConfig:init()
+    if not self.dimen then self.dimen = Geom:new{} end
     if Device:hasKeyboard() then
         self.key_events = {
             ShowConfigMenu = { { "AA" }, doc = "show config dialog" },
diff --git a/frontend/ui/font.lua b/frontend/ui/font.lua
index 99b4ef381..b1b9d96f4 100644
--- a/frontend/ui/font.lua
+++ b/frontend/ui/font.lua
@@ -49,18 +49,17 @@ local Font = {
 
 
 function Font:getFace(font, size)
-    if not font then
-        -- default to content font
-        font = self.cfont
-    end
+    -- default to content font
+    if not font then font = self.cfont end
 
     -- original size before scaling by screen DPI
     local orig_size = size
     local size = Screen:scaleBySize(size)
 
-    local face = self.faces[font..size]
+    local hash = font..size
+    local face_obj = self.faces[hash]
     -- build face if not found
-    if not face then
+    if not face_obj then
         local realname = self.fontmap[font]
         if not realname then
             realname = font
@@ -71,10 +70,16 @@ function Font:getFace(font, size)
             DEBUG("#! Font "..font.." ("..realname..") not supported: "..face)
             return nil
         end
-        self.faces[font..size] = face
-    --DEBUG("getFace, found: "..realname.." size:"..size)
+        face_obj = {
+            size = size,
+            orig_size = orig_size,
+            ftface = face,
+            hash = hash
+        }
+        self.faces[hash] = face_obj
+    -- DEBUG("getFace, found: "..realname.." size:"..size)
     end
-    return { size = size, orig_size = orig_size, ftface = face, hash = font..size }
+    return face_obj
 end
 
 function Font:_readList(target, dir)
diff --git a/frontend/ui/widget/button.lua b/frontend/ui/widget/button.lua
index 0a6881980..508d3b24d 100644
--- a/frontend/ui/widget/button.lua
+++ b/frontend/ui/widget/button.lua
@@ -66,9 +66,7 @@ function Button:init()
         }
     }
     if self.preselect then
-        self.frame.color = Blitbuffer.COLOR_BLACK
-    else
-        self.frame.color = Blitbuffer.gray(0.33)
+        self:onFocus()
     end
     self.dimen = self.frame:getSize()
     self[1] = self.frame
@@ -105,12 +103,12 @@ function Button:setIcon(icon)
 end
 
 function Button:onFocus()
-    self[1].color = Blitbuffer.COLOR_BLACK
+    self.frame.invert = true
     return true
 end
 
 function Button:onUnfocus()
-    self[1].color = Blitbuffer.gray(0.33)
+    self.frame.invert = false
     return true
 end
 
diff --git a/frontend/ui/widget/buttontable.lua b/frontend/ui/widget/buttontable.lua
index 45a74a13f..cea718912 100644
--- a/frontend/ui/widget/buttontable.lua
+++ b/frontend/ui/widget/buttontable.lua
@@ -1,13 +1,16 @@
-local VerticalGroup = require("ui/widget/verticalgroup")
 local HorizontalGroup = require("ui/widget/horizontalgroup")
+local VerticalGroup = require("ui/widget/verticalgroup")
 local VerticalSpan = require("ui/widget/verticalspan")
+local FocusManager = require("ui/widget/focusmanager")
 local LineWidget = require("ui/widget/linewidget")
-local Button = require("ui/widget/button")
-local Screen = require("device").screen
-local Geom = require("ui/geometry")
 local Blitbuffer = require("ffi/blitbuffer")
+local Button = require("ui/widget/button")
+local UIManager = require("ui/uimanager")
+local Geom = require("ui/geometry")
+local Device = require("device")
+local Screen = Device.screen
 
-local ButtonTable = VerticalGroup:new{
+local ButtonTable = FocusManager:new{
     width = Screen:getWidth(),
     buttons = {
         {
@@ -24,7 +27,8 @@ local ButtonTable = VerticalGroup:new{
 }
 
 function ButtonTable:init()
-    --local vertical_group = VerticalGroup:new{}
+    self.container = VerticalGroup:new{ width = self.width }
+    table.insert(self, self.container)
     if self.zero_sep then
         self:addHorizontalSep()
     end
@@ -53,28 +57,42 @@ function ButtonTable:init()
                     h = button_dim.h,
                 }
             }
+            self.buttons[i][j] = button
             table.insert(horizontal_group, button)
             if j < #line then
                 table.insert(horizontal_group, vertical_sep)
             end
         end -- end for each button
-        table.insert(self, horizontal_group)
+        table.insert(self.container, horizontal_group)
         if i < #self.buttons then
             self:addHorizontalSep()
         end
     end -- end for each button line
+    if Device:hasKeys() then
+        self.layout = self.buttons
+        self.layout[1][1]:onFocus()
+        self.key_events.SelectByKeyPress = { {{"Press", "Enter"}} }
+    else
+        self.key_events = {}  -- deregister all key press event listeners
+    end
 end
 
 function ButtonTable:addHorizontalSep()
-    table.insert(self, VerticalSpan:new{ width = Screen:scaleBySize(2) })
-    table.insert(self, LineWidget:new{
+    table.insert(self.container,
+                 VerticalSpan:new{ width = Screen:scaleBySize(2) })
+    table.insert(self.container, LineWidget:new{
         background = Blitbuffer.gray(0.5),
         dimen = Geom:new{
             w = self.width,
             h = self.sep_width,
         }
     })
-    table.insert(self, VerticalSpan:new{ width = Screen:scaleBySize(2) })
+    table.insert(self.container,
+                 VerticalSpan:new{ width = Screen:scaleBySize(2) })
+end
+
+function ButtonTable:onSelectByKeyPress()
+    self:getFocusItem().callback()
 end
 
 return ButtonTable
diff --git a/frontend/ui/widget/container/centercontainer.lua b/frontend/ui/widget/container/centercontainer.lua
index afa054ea3..ff7b90034 100644
--- a/frontend/ui/widget/container/centercontainer.lua
+++ b/frontend/ui/widget/container/centercontainer.lua
@@ -6,18 +6,18 @@ CenterContainer centers its content (1 widget) within its own dimensions
 local CenterContainer = WidgetContainer:new()
 
 function CenterContainer:paintTo(bb, x, y)
-    local contentSize = self[1]:getSize()
-    if contentSize.w > self.dimen.w or contentSize.h > self.dimen.h then
+    local content_size = self[1]:getSize()
+    if content_size.w > self.dimen.w or content_size.h > self.dimen.h then
         -- throw error? paint to scrap buffer and blit partially?
         -- for now, we ignore this
     end
     local x_pos = x
     local y_pos = y
     if self.ignore ~= "height" then
-        y_pos = y + math.floor((self.dimen.h - contentSize.h)/2)
+        y_pos = y + math.floor((self.dimen.h - content_size.h)/2)
     end
     if self.ignore ~= "width" then
-        x_pos = x + math.floor((self.dimen.w - contentSize.w)/2)
+        x_pos = x + math.floor((self.dimen.w - content_size.w)/2)
     end
     self[1]:paintTo(bb, x_pos, y_pos)
 end
diff --git a/frontend/ui/widget/container/inputcontainer.lua b/frontend/ui/widget/container/inputcontainer.lua
index 8b00dc99f..95aa9727d 100644
--- a/frontend/ui/widget/container/inputcontainer.lua
+++ b/frontend/ui/widget/container/inputcontainer.lua
@@ -48,13 +48,12 @@ function InputContainer:_init()
         end
     end
     self.ges_events = new_ges_events
-
-    if not self.dimen then
-        self.dimen = Geom:new{}
-    end
 end
 
 function InputContainer:paintTo(bb, x, y)
+    if not self.dimen then
+        self.dimen = self[1]:getSize()
+    end
     self.dimen.x = x
     self.dimen.y = y
     if self[1] then
diff --git a/frontend/ui/widget/container/widgetcontainer.lua b/frontend/ui/widget/container/widgetcontainer.lua
index 766df85a1..dd63ec34b 100644
--- a/frontend/ui/widget/container/widgetcontainer.lua
+++ b/frontend/ui/widget/container/widgetcontainer.lua
@@ -7,14 +7,13 @@ WidgetContainer is a container for another Widget
 local WidgetContainer = Widget:new()
 
 function WidgetContainer:init()
-    if not self.dimen then
-        self.dimen = Geom:new{}
-    end
-    if not self.dimen.w then
-        self.dimen.w = self[1].getSize().w
-    end
-    if not self.dimen.h then
-        self.dimen.h = self[1].getSize().h
+    if self.dimen then
+        if not self.dimen.w then
+            self.dimen.w = self[1].getSize().w
+        end
+        if not self.dimen.h then
+            self.dimen.h = self[1].getSize().h
+        end
     end
 end
 
diff --git a/frontend/ui/widget/focusmanager.lua b/frontend/ui/widget/focusmanager.lua
index a88200119..213ea4673 100644
--- a/frontend/ui/widget/focusmanager.lua
+++ b/frontend/ui/widget/focusmanager.lua
@@ -32,7 +32,9 @@ local FocusManager = InputContainer:new{
 }
 
 function FocusManager:init()
-    self.selected = { x = 1, y = 1 }
+    if not self.selected then
+        self.selected = { x = 1, y = 1 }
+    end
     self.key_events = {
         -- these will all generate the same event, just with different arguments
         FocusUp =    { {"Up"},    doc = "move focus up",    event = "FocusMove", args = {0, -1} },
@@ -60,7 +62,7 @@ function FocusManager:onFocusMove(args)
             break  -- abort when we run into horizontal borders
         end
 
-        -- move cyclic in vertical direction
+        -- call widget wrap callbacks in vertical direction
         if self.selected.y + dy > #self.layout then
             if not self:onWrapLast() then
                 break
@@ -99,4 +101,8 @@ function FocusManager:onWrapLast()
     return true
 end
 
+function FocusManager:getFocusItem()
+    return self.layout[self.selected.y][self.selected.x]
+end
+
 return FocusManager
diff --git a/frontend/ui/widget/touchmenu.lua b/frontend/ui/widget/touchmenu.lua
index 596d7594b..77c375f78 100644
--- a/frontend/ui/widget/touchmenu.lua
+++ b/frontend/ui/widget/touchmenu.lua
@@ -274,6 +274,7 @@ local TouchMenu = InputContainer:new{
 }
 
 function TouchMenu:init()
+    if not self.dimen then self.dimen = Geom:new{} end
     self.show_parent = self.show_parent or self
     if not self.close_callback then
         self.close_callback = function()
diff --git a/frontend/ui/widget/widget.lua b/frontend/ui/widget/widget.lua
index 6b7c19c0d..29f55a88a 100644
--- a/frontend/ui/widget/widget.lua
+++ b/frontend/ui/widget/widget.lua
@@ -31,8 +31,8 @@ definition.
 --]]
 function Widget:new(o)
     o = self:extend(o)
-    -- Both o._init and o.init are called on object create. But o._init is used
-    -- for base widget initialization (basic component used to build other
+    -- Both o._init and o.init are called on object creation. But o._init is
+    -- used for base widget initialization (basic component used to build other
     -- widgets). While o.init is for higher level widgets, for example Menu
     -- Widget
     if o._init then o:_init() end
diff --git a/spec/unit/font_spec.lua b/spec/unit/font_spec.lua
new file mode 100644
index 000000000..4d6c155bd
--- /dev/null
+++ b/spec/unit/font_spec.lua
@@ -0,0 +1,15 @@
+require("commonrequire")
+local DEBUG = require("dbg")
+local Font = require("ui/font")
+
+describe("Font module", function()
+    local f = nil
+    it("should get face", function()
+        f = Font:getFace('cfont', 18)
+        assert.are_not.equals(f.ftface, nil)
+        f = Font:getFace('tfont', 16)
+        assert.are_not.equals(f.ftface, nil)
+        f = Font:getFace('hfont', 12)
+        assert.are_not.equals(f.ftface, nil)
+    end)
+end)