StatusView v2.0, some changes include:

* Items are now objects that can be retrieved and manipulated.
* clip rect is used for left and right panes
* initial support for items to do their own custom drawing by also
  doing a clip rect for them
* a custom background color can be specified for the item.
* a command or function can be executed on item click.
* Introduced functionality to easily hide or show all or specific items.
* Better handling of deprecated get_items()
* Spacing is automatically added to items and cleaned on deprecated
  items.
* Default items where separated and given the names:
  doc:file, doc:position, doc:indentation, doc:lines,
  doc:line-ending, core.commandview.
* Some default right or left click actions where given to the default
  items.
* Started adding required bits to support dragging to left and right
  panes when some items aren't visible.

Note: should work well enough already but maybe some repetitive stuff can be
cleaned out.

data/core/statusview.lua

@@ -9,33 +9,28 @@ local LogView = require "core.logview"
 local View = require "core.view"
 local Object = require "core.object"
 
+
 ---@alias StatusView.styledtext table<integer, renderer.font|renderer.color|string>
----@alias StatusView.itemscb fun():StatusView.styledtext,StatusView.styledtext
----@alias StatusView.clickcb fun(button: string, x: number, y: number)
----@alias StatusView.predicate fun():boolean
 
 ---A status bar implementation for lite, check core.status_view.
 ---@class StatusView : View
----@field private items StatusView.item[]
+---@field private items StatusView.Item[]
----@field private hovered_item StatusView.item
+---@field private active_items StatusView.Item[]
+---@field private hovered_item StatusView.Item
 ---@field private message_timeout number
 ---@field private message StatusView.styledtext
 ---@field private tooltip_mode boolean
 ---@field private tooltip StatusView.styledtext
+---@field private left_width number
+---@field private right_width number
+---@field private r_left_width number
+---@field private r_right_width number
+---@field private left_xoffset number
+---@field private right_xoffset number
+---@field private dragged_panel '"left"' | '"right"'
+---@field private hide_messages boolean
 local StatusView = View:extend()
 
----@class StatusView.item
----@field predicate StatusView.predicate
----@field items StatusView.itemscb
----@field onclick StatusView.clickcb
----@field tooltip string | nil
----@field lx number
----@field lw number
----@field rx number
----@field rw number
----@field active boolean
-StatusView.item = {}
-
 ---Space separator
 ---@type string
 StatusView.separator  = "      "
@@ -44,6 +39,107 @@ StatusView.separator  = "      "
 ---@type string
 StatusView.separator2 = "   |   "
 
+---@alias StatusView.Item.separator
+---|>'StatusView.separator' # Space separator
+---| 'StatusView.separator2' # Pipe separator
+
+---@alias StatusView.Item.predicate fun():boolean
+---@alias StatusView.Item.onclick fun(button: string, x: number, y: number)
+---@alias StatusView.Item.getitem fun():StatusView.styledtext,StatusView.styledtext
+---@alias StatusView.Item.ondraw fun(x, y, h, calc_only: boolean):number
+
+---@class StatusView.Item : Object
+---@field name string
+---@field predicate StatusView.Item.predicate
+---@field alignment StatusView.Item.alignment
+---@field tooltip string | nil
+---@field command string | nil @Command to perform when the item is clicked.
+---@field on_click StatusView.Item.onclick | nil @Function called when item is clicked and no command is set.
+---@field on_draw StatusView.Item.ondraw | nil @Custom drawing that when passed calc true should return the needed width for drawing and when false should draw.
+---@field background_color renderer.color | nil
+---@field visible boolean
+---@field separator StatusView.Item.separator
+---@field private active boolean
+---@field private x number
+---@field private w number
+---@field private deprecated boolean
+---@field private cached_item StatusView.styledtext
+StatusView.Item = Object:extend()
+
+---Flag to tell the item should me aligned on left side of status bar.
+---@type number
+StatusView.Item.LEFT = 1
+
+---Flag to tell the item should me aligned on right side of status bar.
+---@type number
+StatusView.Item.RIGHT = 2
+
+---@alias StatusView.Item.alignment
+---|>'StatusView.Item.LEFT'
+---| 'StatusView.Item.RIGHT'
+
+---Constructor
+---@param predicate string | table | StatusView.Item.predicate
+---@param name string
+---@param alignment StatusView.Item.alignment
+---@param command string | StatusView.Item.onclick
+---@param tooltip? string | nil
+function StatusView.Item:new(predicate, name, alignment, command, tooltip)
+  self:set_predicate(predicate)
+  self.name = name
+  self.alignment = alignment or StatusView.Item.LEFT
+  self.command = type(command) == "string" and command or nil
+  self.tooltip = tooltip or ""
+  self.on_click = type(command) == "function" and command or nil
+  self.on_draw = nil
+  self.background_color = nil
+  self.visible = true
+  self.active = false
+  self.x = 0
+  self.w = 0
+  self.separator = StatusView.separator
+end
+
+---Called by the status bar each time that the item needs to be rendered,
+---if on_draw() is set this function is obviated.
+---@return StatusView.styledtext
+function StatusView.Item:get_item() return {} end
+
+---Do not show the item on the status bar.
+function StatusView.Item:hide() self.visible = false end
+
+---Show the item on the status bar.
+function StatusView.Item:show() self.visible = true end
+
+---Function assiged by default when user provides a nil predicate.
+local function predicate_always_true() return true end
+
+---A condition to evaluate if the item should be displayed. If a string
+---is given it is treated as a require import that should return a valid object
+---which is checked against the current active view, the sames applies if a
+---table is given. A function that returns a boolean can be used instead to
+---perform a custom evaluation, setting to nil means always evaluates to true.
+---@param predicate string | table | StatusView.Item.predicate
+function StatusView.Item:set_predicate(predicate)
+  predicate = predicate or predicate_always_true
+  if type(predicate) == "string" then
+    predicate = require(predicate)
+  end
+  if type(predicate) == "table" then
+    local class = predicate
+    predicate = function() return core.active_view:is(class) end
+  end
+  self.predicate = predicate
+end
+
+
+---Predicated used on the default docview widgets.
+---@return boolean
+local function predicate_docview()
+  return  core.active_view:is(DocView)
+    and not core.active_view:is(CommandView)
+end
+
 
 ---Constructor
 function StatusView:new()
@@ -53,57 +149,228 @@ function StatusView:new()
   self.tooltip_mode = false
   self.tooltip = {}
   self.items = {}
+  self.active_items = {}
   self.hovered_item = {}
   self.pointer = {x = 0, y = 0}
+  self.left_width = 0
+  self.right_width = 0
+  self.r_left_width = 0
+  self.r_right_width = 0
+  self.left_xoffset = 0
+  self.right_xoffset = 0
+  self.dragged_panel = ""
+  self.hide_messages = false
+
+  self:register_docview_items()
+  self:register_command_items()
+end
+
+---The predefined status bar items displayed when a document view is active.
+function StatusView:register_docview_items()
+  if self:get_item("doc:file") then return end
 
   self:add_item(
+    predicate_docview,
+    "doc:file",
+    StatusView.Item.LEFT,
     function()
-      return  core.active_view:is(DocView) and
+      local dv = core.active_view
-        not core.active_view:is(CommandView)
+      return {
-    end,
+        dv.doc:is_dirty() and style.accent or style.text, style.icon_font, "f",
-    self.get_doc_items
+        style.dim, style.font, self.separator2, style.text,
+        dv.doc.filename and style.text or style.dim, dv.doc:get_name()
+      }
+    end
   )
 
-  self:add_item("core.commandview", self.get_command_items)
+  self:add_item(
+    predicate_docview,
+    "doc:position",
+    StatusView.Item.LEFT,
+    function()
+      local dv = core.active_view
+      local line, col = dv.doc:get_selection()
+      return {
+        line,
+        ":",
+        col > config.line_limit and style.accent or style.text, col,
+        style.text,
+        self.separator,
+        string.format("%.f%%", line / #dv.doc.lines * 100)
+      }
+    end,
+    "doc:go-to-line"
+  ).tooltip = "line : column"
+
+  self:add_item(
+    predicate_docview,
+    "doc:indentation",
+    StatusView.Item.RIGHT,
+    function()
+      local dv = core.active_view
+      local indent_type, indent_size, indent_confirmed = dv.doc:get_indent_info()
+      local indent_label = (indent_type == "hard") and "tabs: " or "spaces: "
+      return {
+        style.text, indent_label, indent_size
+      }
+    end,
+    function(button, x, y)
+      if button == "left" then
+        command.perform "indent:set-file-indent-size"
+      elseif button == "right" then
+        command.perform "indent:set-file-indent-type"
+      end
+    end
+  ).separator = self.separator2
+
+  self:add_item(
+    predicate_docview,
+    "doc:lines",
+    StatusView.Item.RIGHT,
+    function()
+      local dv = core.active_view
+      return {
+        style.text,
+        style.icon_font, "g",
+        style.font, style.dim, self.separator2, style.text,
+        #dv.doc.lines, " lines",
+      }
+    end
+  ).separator = self.separator2
+
+  self:add_item(
+    predicate_docview,
+    "doc:line-ending",
+    StatusView.Item.RIGHT,
+    function()
+      local dv = core.active_view
+      return {
+        dv.doc.crlf and "CRLF" or "LF"
+      }
+    end,
+    "doc:toggle-line-ending"
+  )
+end
+
+
+---The predefined status bar items displayed when a command view is active.
+function StatusView:register_command_items()
+  if self:get_item("command:files") then return end
+
+  self:add_item(
+    "core.commandview",
+    "command:files",
+    StatusView.Item.RIGHT,
+    function()
+      return {
+        style.icon_font, "g",
+        style.font, style.dim, self.separator2,
+        #core.docs, style.text, " / ",
+        #core.project_files, " files"
+      }
+    end
+  )
 end
 
 
 ---Adds an item to be rendered in the status bar.
----@param predicate string | table | StatusView.predicate :
+---@param predicate string | table | StatusView.Item.predicate :
----A coindition to evaluate if the item should be displayed. If a string
+---A condition to evaluate if the item should be displayed. If a string
----is given it is treated as a file that returns a valid object which is
+---is given it is treated as a require import that should return a valid object
----checked against the current active view, the sames applies if a table is
+---which is checked against the current active view, the sames applies if a
----given. A function can be used instead to perform a custom evaluation.
+---table is given. A function that returns a boolean can be used instead to
----@param itemscb StatusView.itemscb :
+---perform a custom evaluation, setting to nil means always evaluates to true.
----This function should return two tables of StatusView.styledtext elements
+---@param name string A unique name to identify the item on the status bar.
----for both left and right, empty tables are allowed.
+---@param alignment StatusView.Item.alignment
+---@param getitem StatusView.Item.getitem :
+---A function that should return a StatusView.styledtext element,
+---returning empty table is allowed.
+---@param command? string | StatusView.Item.onclick :
+---The name of a valid registered command or a callback function to execute
+---when the item is clicked.
 ---@param pos? integer :
 ---The position in which to insert the given item on the internal table,
 ---a value of -1 inserts the item at the end which is the default. A value
 ---of 1 will insert the item at the beggining.
----@param onclick? StatusView.clickcb Executed when user clicks the item
 ---@param tooltip? string Displayed when mouse hovers the item
-function StatusView:add_item(predicate, itemscb, pos, onclick, tooltip)
+---@return StatusView.Item
-  predicate = predicate or always_true
+function StatusView:add_item(predicate, name, alignment, getitem, command, pos, tooltip)
-  if type(predicate) == "string" then
+  assert(self:get_item(name) == nil, "status item already exists: " .. name)
-    predicate = require(predicate)
+  ---@type StatusView.Item
-  end
+  local item = StatusView.Item(predicate, name, alignment, command, tooltip)
-  if type(predicate) == "table" then
+  item.get_item = getitem
-    local class = predicate
+  pos = type(pos) == "nil" and -1 or tonumber(pos)
-    predicate = function() return core.active_view:is(class) end
-  end
-  ---@type StatusView.item
-  local item = {
-    predicate = predicate,
-    items = itemscb,
-    onclick = onclick,
-    tooltip = tooltip
-  }
-  pos = type(pos) == "nil" and -1 or math.abs(tonumber(pos))
   if pos == -1 then
     table.insert(self.items, item)
   else
-    table.insert(self.items, pos, item)
+    table.insert(self.items, math.abs(pos), item)
+  end
+  return item
+end
+
+
+---Get an item associated object or nil if not found.
+---@param name string
+---@return StatusView.Item | nil
+function StatusView:get_item(name)
+  for _, item in ipairs(self.items) do
+    if item.name == name then return item end
+  end
+  return nil
+end
+
+
+---Get a list of items.
+---@param alignment? StatusView.Item.alignment
+---@return StatusView.Item[]
+function StatusView:get_items_list(alignment)
+  if alignment then
+    local items = {}
+    for _, item in ipairs(self.items) do
+      if item.alignment == alignment then
+        table.insert(items, item)
+      end
+    end
+    return items
+  end
+  return self.items
+end
+
+
+---Hides the given items from the status view or all if no names given.
+---@param names table<integer, string> | string | nil
+function StatusView:hide_items(names)
+  if type(names) == "string" then
+    names = {names}
+  end
+  if not names then
+    for _, item in ipairs(self.items) do
+      item:hide()
+    end
+    return
+  end
+  for _, name in ipairs(names) do
+    local item = self:get_item(name)
+    if item then item:hide() end
+  end
+end
+
+
+---Shows the given items from the status view or all if no names given.
+---@param names table<integer, string> | string | nil
+function StatusView:show_items(names)
+  if type(names) == "string" then
+    names = {names}
+  end
+  if not names then
+    for _, item in ipairs(self.items) do
+      item:show()
+    end
+    return
+  end
+  for _, name in ipairs(names) do
+    local item = self:get_item(name)
+    if item then item:show() end
   end
 end
 
@@ -113,6 +380,7 @@ end
 ---@param icon_color renderer.color
 ---@param text string
 function StatusView:show_message(icon, icon_color, text)
+  if self.hide_messages then return end
   self.message = {
     icon_color, style.icon_font, icon,
     style.dim, style.font, StatusView.separator2, style.text, text
@@ -121,6 +389,13 @@ function StatusView:show_message(icon, icon_color, text)
 end
 
 
+---Enable or disable system wide messages on the status bar.
+---@param enable boolean
+function StatusView:display_messages(enable)
+  self.hide_messages = not enable
+end
+
+
 ---Activates tooltip mode displaying only the given
 ---text until StatusView:remove_tooltip() is called.
 ---@param text string | StatusView.styledtext
@@ -174,8 +449,9 @@ end
 ---@param items StatusView.styledtext
 ---@param right_align boolean
 ---@param yoffset number
-function StatusView:draw_items(items, right_align, yoffset)
+function StatusView:draw_items(items, right_align, xoffset, yoffset)
   local x, y = self:get_content_offset()
+  x = x + (xoffset or 0)
   y = y + (yoffset or 0)
   if right_align then
     local w = draw_items(self, items, 0, 0, text_width)
@@ -189,7 +465,7 @@ end
 
 
 ---Draw the tooltip of a given status bar item.
----@param item StatusView.item
+---@param item StatusView.Item
 function StatusView:draw_item_tooltip(item)
   core.root_view:defer_draw(function()
     local text = item.tooltip
@@ -203,7 +479,7 @@ function StatusView:draw_item_tooltip(item)
     end
 
     renderer.draw_rect(
-      x,
+      x + style.padding.x,
       self.position.y - h - (style.padding.y * 2),
       w + (style.padding.x * 2),
       h + (style.padding.y * 2),
@@ -213,7 +489,7 @@ function StatusView:draw_item_tooltip(item)
     renderer.draw_text(
       style.font,
       text,
-      x + style.padding.x,
+      x + (style.padding.x * 2),
       self.position.y - h - style.padding.y,
       style.text
     )
@@ -221,141 +497,6 @@ function StatusView:draw_item_tooltip(item)
 end
 
 
----The predefined status bar items displayed when a document view is active.
----@return table left
----@return table right
-function StatusView:get_doc_items()
-  local dv = core.active_view
-  local line, col = dv.doc:get_selection()
-  local dirty = dv.doc:is_dirty()
-  local indent_type, indent_size, indent_confirmed = dv.doc:get_indent_info()
-  local indent_label = (indent_type == "hard") and "tabs: " or "spaces: "
-  local indent_size_str = tostring(indent_size) .. (indent_confirmed and "" or "*") or "unknown"
-
-  return {
-    dirty and style.accent or style.text, style.icon_font, "f",
-    style.dim, style.font, self.separator2, style.text,
-    dv.doc.filename and style.text or style.dim, dv.doc:get_name(),
-    style.text,
-    self.separator,
-    "line: ", line,
-    self.separator,
-    col > config.line_limit and style.accent or style.text, "col: ", col,
-    style.text,
-    self.separator,
-    string.format("%.f%%", line / #dv.doc.lines * 100),
-  }, {
-    style.text, indent_label, indent_size,
-    style.dim, self.separator2, style.text,
-    style.icon_font, "g",
-    style.font, style.dim, self.separator2, style.text,
-    #dv.doc.lines, " lines",
-    self.separator,
-    dv.doc.crlf and "CRLF" or "LF"
-  }
-end
-
-
----The predefined status bar items displayed when a command view is active.
----@return table left
----@return table right
-function StatusView:get_command_items()
-  return {}, {
-    style.icon_font, "g",
-    style.font, style.dim, self.separator2,
-    #core.docs, style.text, " / ",
-    #core.project_files, " files"
-  }
-end
-
-
----Helper function to copy a styled text table into another.
----@param t1 StatusView.styledtext
----@param t2 StatusView.styledtext
-local function table_add(t1, t2)
-  for i, value in ipairs(t2) do
-    table.insert(t1, value)
-  end
-end
-
-
----Get the styled text that will be displayed on the left side or
----right side of the status bar checking their predicates and performing
----positioning calculations for proper functioning of tooltips and clicks.
----@return StatusView.styledtext left
----@return StatusView.styledtext right
-function StatusView:get_items_from_list()
-  local left, right = {}, {}
-
-  local x = self:get_content_offset()
-
-  local rx = x + self.size.x
-  local lx = x + style.padding.x
-  local rw, lw = 0, 0
-
-  ---@class items
-  ---@field item StatusView.item
-  local items = {}
-
-  -- calculate left and right width
-  for _, item in ipairs(self.items) do
-    if item.predicate(self) then
-      item.active = true
-
-      local litems, ritems = item.items(self)
-
-      if #litems > 0 then
-        item.lw = draw_items(self, litems, 0, 0, text_width)
-        item.lx = lx
-        lw = lw + item.lw
-        lx = lx + item.lw
-      end
-
-      if #ritems > 0 then
-        item.rw = draw_items(self, ritems, 0, 0, text_width)
-        item.rx = rx
-        rw = rw + item.rw
-        rx = rx + item.rw
-      end
-
-      if #litems > 0 or #ritems > 0 then
-        table.insert(items, {
-          item = item,
-          left = litems,
-          right = ritems
-        })
-      end
-    else
-      item.active = false
-    end
-  end
-
-  -- load deprecated items for compatibility
-  local dleft, dright = self:get_items(true)
-  if #dright > 0 then
-    rw = rw + draw_items(self, dright, 0, 0, text_width)
-  end
-
-  rw = rw < (self.size.x / 2) and rw or self.size.x / 2
-
-  for _, item in ipairs(items) do
-    if #item.left > 0 then
-      table_add(left, item.left)
-    end
-    if #item.right > 0 then
-      -- re-calculate x position now that we have the total width
-      item.item.rx = item.item.rx - rw - style.padding.x
-      table_add(right, item.right)
-    end
-  end
-
-  table_add(left, dleft)
-  table_add(right, dright)
-
-  return left, right
-end
-
-
 ---Older method of retrieving the status bar items and which is now
 ---deprecated in favour of core.status_view:add_item().
 ---@deprecated
@@ -370,7 +511,210 @@ function StatusView:get_items(nowarn)
     )
     self.get_items_warn = true
   end
-  return {}, {}
+  return {"{:dummy:}"}, {"{:dummy:}"}
+end
+
+
+---Helper function to copy a styled text table into another.
+---@param t1 StatusView.styledtext
+---@param t2 StatusView.styledtext
+local function table_add(t1, t2)
+  for i, value in ipairs(t2) do
+    table.insert(t1, value)
+  end
+end
+
+
+---Helper function to merge deprecated items to a temp items table.
+---@param destination table
+---@param items StatusView.styledtext
+---@param alignment StatusView.Item.alignment
+local function merge_deprecated_items(destination, items, alignment)
+  local start = true
+  local items_start, items_end = {}, {}
+  for i, value in ipairs(items) do
+    if value ~= "{:dummy:}" then
+      if start then
+        table.insert(items_start, i, value)
+      else
+        table.insert(items_end, value)
+      end
+    else
+      start = false
+    end
+  end
+
+  local position = alignment == StatusView.Item.LEFT and "left" or "right"
+
+  local item_start = StatusView.Item(
+    predicate_always_true,
+    "deprecated:"..position.."-start",
+    alignment
+  )
+  item_start.get_item = items_start
+
+  local item_end = StatusView.Item(
+    predicate_always_true,
+    "deprecated:"..position.."-end",
+    alignment
+  )
+  item_end.get_item = items_end
+
+  table.insert(destination, 1, item_start)
+  table.insert(destination, item_end)
+end
+
+
+---@param self StatusView
+---@param styled_text StatusView.styledtext
+---@param separator string
+local function add_spacing(self, styled_text, separator)
+  if
+    Object.is(styled_text[1], renderer.font)
+    or
+    (
+      styled_text[2] ~= self.separator
+      or
+      styled_text[2] ~= self.separator2
+    )
+  then
+    if separator == self.separator2 then
+      table.insert(styled_text, 1, style.dim)
+    else
+      table.insert(styled_text, 1, style.text)
+    end
+    table.insert(styled_text, 2, separator)
+  end
+end
+
+
+---@param self StatusView
+---@param styled_text StatusView.styledtext
+local function remove_spacing(self, styled_text)
+  if
+    not Object.is(styled_text[1], renderer.font)
+    and
+    type(styled_text[1]) == "table"
+    and
+    (
+      styled_text[2] == self.separator
+      or
+      styled_text[2] == self.separator2
+    )
+  then
+    table.remove(styled_text, 1)
+    table.remove(styled_text, 1)
+  end
+
+  if
+    not Object.is(styled_text[#styled_text-1], renderer.font)
+    and
+    type(styled_text[#styled_text-1]) == "table"
+    and
+    (
+      styled_text[#styled_text] == self.separator
+      or
+      styled_text[#styled_text] == self.separator2
+    )
+  then
+    table.remove(styled_text, #styled_text)
+    table.remove(styled_text, #styled_text)
+  end
+end
+
+
+---Get the styled text that will be displayed on the left side or
+---right side of the status bar checking their predicates and performing
+---positioning calculations for proper functioning of tooltips and clicks.
+---@return StatusView.styledtext left
+---@return StatusView.styledtext right
+function StatusView:update_active_items()
+  local left, right = {}, {}
+
+  local x = self:get_content_offset()
+
+  local rx = x + self.size.x
+  local lx = x
+  local rw, lw = 0, 0
+
+  self.active_items = {}
+
+  ---@type StatusView.Item[]
+  local combined_items = {}
+  table_add(combined_items, self.items)
+
+  -- load deprecated items for compatibility
+  local dleft, dright = self:get_items(true)
+  merge_deprecated_items(combined_items, dleft, StatusView.Item.LEFT)
+  merge_deprecated_items(combined_items, dright, StatusView.Item.RIGHT)
+
+  local lfirst, rfirst = true, true
+
+  -- calculate left and right width
+  for _, item in ipairs(combined_items) do
+    item.cached_item = {}
+    if item.visible and item.predicate(self) then
+      local styled_text = type(item.get_item) == "function"
+        and item.get_item(self) or item.get_item
+
+      if #styled_text > 0 then
+        remove_spacing(self, styled_text)
+      end
+
+      if #styled_text > 0 or item.on_draw then
+        item.active = true
+        if item.alignment == StatusView.Item.LEFT then
+          if not lfirst then
+            add_spacing(self, styled_text, item.separator, true)
+          else
+            lfirst = false
+          end
+          item.w = item.on_draw and
+            item.on_draw(lx, self.position.y, self.size.y, true)
+            or
+            draw_items(self, styled_text, 0, 0, text_width)
+          item.x = lx
+          lw = lw + item.w
+          lx = lx + item.w
+        else
+          if not rfirst then
+            add_spacing(self, styled_text, item.separator, true)
+          else
+            rfirst = false
+          end
+          item.w = item.on_draw and
+            item.on_draw(rx, self.position.y, self.size.y, true)
+            or
+            draw_items(self, styled_text, 0, 0, text_width)
+          item.x = rx
+          rw = rw + item.w
+          rx = rx + item.w
+        end
+        item.cached_item = styled_text
+        table.insert(self.active_items, item)
+      else
+        item.active = false
+      end
+    else
+      item.active = false
+    end
+  end
+
+  self.r_left_width, self.r_right_width = lw, rw
+
+  if lw + rw + (style.padding.x * 2) > self.size.x then
+    lw = self.size.x / 2 - (style.padding.x * 2)
+    rw = self.size.x / 2 - (style.padding.x * 2)
+  end
+
+  self.left_width, self.right_width = lw, rw
+
+  for _, item in ipairs(self.active_items) do
+    if item.alignment == StatusView.Item.RIGHT then
+      -- re-calculate x position now that we have the total width
+      item.x = item.x - rw - (style.padding.x * 2)
+    end
+  end
 end
 
 
@@ -380,6 +724,7 @@ function StatusView:on_mouse_pressed()
   and not core.active_view:is(LogView) then
     command.perform "core:open-log"
   end
+  self.mouse_pressed = true
   return true
 end
 
@@ -387,15 +732,18 @@ end
 function StatusView:on_mouse_moved(x, y, dx, dy)
   StatusView.super.on_mouse_moved(self, x, y, dx, dy)
 
-  if y < self.position.y then self.hovered_item = {} return end
+  if y < self.position.y or system.get_time() <= self.message_timeout then
+    self.hovered_item = {} return
+  end
 
   for _, item in ipairs(self.items) do
-    if item.onclick and item.active then
+    if
-      if
+      item.visible and item.active
-        (item.lx and x > item.lx and (item.lx + item.lw) > x)
+      and
-        or
+      (item.command or item.on_click or item.tooltip ~= "")
-        (item.rx and x > item.rx and (item.rx + item.rw) > x)
+    then
-      then
+      local item_x = item.x + style.padding.x
+      if x > item_x and (item_x + item.w) > x then
         self.pointer.x = x
         self.pointer.y = y
         if self.hovered_item ~= item then
@@ -412,15 +760,18 @@ end
 function StatusView:on_mouse_released(button, x, y)
   StatusView.super.on_mouse_released(self, button, x, y)
 
-  if y < self.position.y or not self.hovered_item.onclick then return end
+  self.mouse_pressed = false
+
+  if y < self.position.y or not self.hovered_item.active then return end
 
   local item = self.hovered_item
-  if
+  local item_x = item.x + style.padding.x
-    (item.lx and x > item.lx and (item.lx + item.lw) > x)
+  if x > item_x and (item_x + item.w) > x then
-    or
+    if item.command then
-    (item.rx and x > item.rx and (item.rx + item.rw) > x)
+      command.perform(item.command)
-  then
+    elseif item.on_click then
-    self.hovered_item.onclick(button, x, y)
+      self.hovered_item.on_click(button, x, y)
+    end
   end
 end
 
@@ -435,24 +786,74 @@ function StatusView:update()
   end
 
   StatusView.super.update(self)
+
+  self:update_active_items()
 end
 
 
 function StatusView:draw()
   self:draw_background(style.background2)
 
-  if self.message then
+  if self.message and system.get_time() <= self.message_timeout then
-    self:draw_items(self.message, false, self.size.y)
+    self:draw_items(self.message, false, 0, self.size.y)
-  end
+  elseif self.tooltip_mode then
-
-  if self.tooltip_mode then
     self:draw_items(self.tooltip)
   else
-    local left, right = self:get_items_from_list()
+    if #self.active_items > 0 then
-    self:draw_items(left)
+      --- draw left pane
-    self:draw_items(right, true)
+      core.push_clip_rect(
-    if self.hovered_item.tooltip then
+        0, self.position.y,
-      self:draw_item_tooltip(self.hovered_item)
+        self.left_width + style.padding.x, self.size.y
+      )
+      for _, item in ipairs(self.active_items) do
+        if item.alignment == StatusView.Item.LEFT then
+          if type(item.background_color) == "table" then
+            renderer.draw_rect(
+              item.x + style.padding.x, self.position.y,
+              item.w, self.size.y, item.background_color
+            )
+          end
+          if item.on_draw then
+            core.push_clip_rect(item.x + style.padding.x, self.position.y, item.w, self.size.y)
+            item.on_draw(item.x + style.padding.x, self.position.y, self.size.y)
+            core.pop_clip_rect()
+          else
+            self:draw_items(item.cached_item, false, item.x)
+          end
+        end
+      end
+      core.pop_clip_rect()
+
+      --- draw right pane
+      core.push_clip_rect(
+        self.size.x - (self.right_width + style.padding.x), self.position.y,
+        self.right_width + style.padding.x, self.size.y
+      )
+      local rx = 0
+      for _, item in ipairs(self.active_items) do
+        if item.alignment == StatusView.Item.RIGHT then
+          if type(item.background_color) == "table" then
+            renderer.draw_rect(
+              item.x + style.padding.x, self.position.y,
+              item.w, self.size.y, item.background_color
+            )
+          end
+          if item.on_draw then
+            core.push_clip_rect(item.x + style.padding.x, self.position.y, item.w, self.size.y)
+            item.on_draw(item.x + style.padding.x, self.position.y, self.size.y)
+            core.pop_clip_rect()
+          else
+            self:draw_items(item.cached_item, false, item.x)
+          end
+          rx = rx + item.w
+        end
+      end
+      core.pop_clip_rect()
+
+      -- draw tooltip
+      if self.hovered_item.tooltip ~= "" and self.hovered_item.active then
+        self:draw_item_tooltip(self.hovered_item)
+      end
     end
   end
 end