问题描述
我正在自定义我的真棒wm任务栏，而我想要实现的目标是：
出于调试目的，该按钮已替换为红色文本框
这是只有几个项目时的外观，正是我想要的：
当有很多客户端时，任务列表项会按预期收缩，但文本字段也会收缩：
-- If LuaRocks is installed,make sure that packages installed through it are
-- found (e.g. lgi). If LuaRocks is not installed,do nothing.
pcall(require,"luarocks.loader")
-- Standard awesome library
local gears = require("gears")
local awful = require("awful")
require("awful.autofocus")
-- Widget and layout library
local wiBox = require("wiBox")
-- Theme handling library
local beautiful = require("beautiful")
-- Notification library
local naughty = require("naughty")
local menubar = require("menubar")
local hotkeys_popup = require("awful.hotkeys_popup")
-- Enable hotkeys help widget for VIM and other apps
-- when client with a matching name is opened:
require("awful.hotkeys_popup.keys")
-- {{{ Error handling
-- Check if awesome encountered an error during startup and fell back to
-- another config (This code will only ever execute for the fallback config)
if awesome.startup_errors then
naughty.notify({ preset = naughty.config.presets.critical,title = "Oops,there were errors during startup!",text = awesome.startup_errors })
end
-- Handle runtime errors after startup
do
local in_error = false
awesome.connect_signal("debug::error",function (err)
-- Make sure we don't go into an endless error loop
if in_error then return end
in_error = true
naughty.notify({ preset = naughty.config.presets.critical,an error happened!",text = tostring(err) })
in_error = false
end)
end
-- }}}
-- {{{ Variable deFinitions
-- Themes define colours,icons,font and wallpapers.
beautiful.init(gears.filesystem.get_themes_dir() .. "default/theme.lua")
-- This is used later as the default terminal and editor to run.
terminal = "xterm"
editor = os.getenv("EDITOR") or "nano"
editor_cmd = terminal .. " -e " .. editor
-- Default modkey.
-- Usually,Mod4 is the key with a logo between Control and Alt.
-- If you do not like this or do not have such a key,-- I suggest you to remap Mod4 to another key using xmodmap or other tools.
-- However,you can use another modifier like Mod1,but it may interact with others.
modkey = "Mod4"
-- Table of layouts to cover with awful.layout.inc,order matters.
awful.layout.layouts = {
awful.layout.suit.floating,awful.layout.suit.tile,awful.layout.suit.tile.left,awful.layout.suit.tile.bottom,awful.layout.suit.tile.top,awful.layout.suit.fair,awful.layout.suit.fair.horizontal,awful.layout.suit.spiral,awful.layout.suit.spiral.dwindle,awful.layout.suit.max,awful.layout.suit.max.fullscreen,awful.layout.suit.magnifier,awful.layout.suit.corner.nw,-- awful.layout.suit.corner.ne,-- awful.layout.suit.corner.sw,-- awful.layout.suit.corner.se,}
-- }}}
-- {{{ Menu
-- Create a launcher widget and a main menu
myawesomemenu = {
{ "hotkeys",function() hotkeys_popup.show_help(nil,awful.screen.focused()) end },{ "manual",terminal .. " -e man awesome" },{ "edit config",editor_cmd .. " " .. awesome.conffile },{ "restart",awesome.restart },{ "quit",function() awesome.quit() end },}
mymainmenu = awful.menu({ items = { { "awesome",myawesomemenu,beautiful.awesome_icon },{ "open terminal",terminal }
}
})
mylauncher = awful.widget.launcher({ image = beautiful.awesome_icon,menu = mymainmenu })
-- Menubar configuration
menubar.utils.terminal = terminal -- Set the terminal for applications that require it
-- }}}
-- Keyboard map indicator and switcher
mykeyboardlayout = awful.widget.keyboardlayout()
-- {{{ Wibar
-- Create a textclock widget
mytextclock = wiBox.widget.textclock()
-- Create a wiBox for each screen and add it
local taglist_buttons = gears.table.join(
awful.button({ },1,function(t) t:view_only() end),awful.button({ modkey },function(t)
if client.focus then
client.focus:move_to_tag(t)
end
end),awful.button({ },3,awful.tag.viewtoggle),function(t)
if client.focus then
client.focus:toggle_tag(t)
end
end),4,function(t) awful.tag.viewnext(t.screen) end),5,function(t) awful.tag.viewprev(t.screen) end)
)
local tasklist_buttons = gears.table.join(
awful.button({ },function (c)
if c == client.focus then
c.minimized = true
else
c:emit_signal(
"request::activate","tasklist",{raise = true}
)
end
end),function()
awful.menu.client_list({ theme = { width = 250 } })
end),function ()
awful.client.focus.byidx(1)
end),function ()
awful.client.focus.byidx(-1)
end))
local tasklist_layout = {
layout = wiBox.layout.flex.horizontal,max_widget_size = 300
}
local function tasklist_create_function(self,c,index,objects) --luacheck: no unused
-- adding close action on button
local cbm = self:get_children_by_id('close_button_role')[1]
cbm:buttons(
awful.button({},nil,function()
c:kill()
end
)
)
end
local tasklist_template = {
-- bgb
id = "background_role",widget = wiBox.container.background,create_callback = tasklist_create_function,{
-- l
layout = wiBox.layout.align.horizontal,{
-- ibm
id = "icon_margin_role",widget = wiBox.container.margin,left = 12,right = 12,{
-- ib
id = 'icon_role',widget = wiBox.widget.imageBox,}
},{
-- tbm
id = "text_margin_role",left = 4,right = 4,{
-- tb
id = "text_role",widget = wiBox.widget.textBox,ellipsize = 'end'
}
},{
-- cbm
id = "close_button_role",right = 8,{
widget = wiBox.widget.textBox,text = "X"
}
}
}
}
local function set_wallpaper(s)
-- Wallpaper
if beautiful.wallpaper then
local wallpaper = beautiful.wallpaper
-- If wallpaper is a function,call it with the screen
if type(wallpaper) == "function" then
wallpaper = wallpaper(s)
end
gears.wallpaper.maximized(wallpaper,s,true)
end
end
-- Re-set wallpaper when a screen's geometry changes (e.g. different resolution)
screen.connect_signal("property::geometry",set_wallpaper)
awful.screen.connect_for_each_screen(function(s)
-- Wallpaper
set_wallpaper(s)
-- Each screen has its own tag table.
awful.tag({ "1","2","3","4","5","6","7","8","9" },awful.layout.layouts[1])
-- Create a promptBox for each screen
s.mypromptBox = awful.widget.prompt()
-- Create an imageBox widget which will contain an icon indicating which layout we're using.
-- We need one layoutBox per screen.
s.mylayoutBox = awful.widget.layoutBox(s)
s.mylayoutBox:buttons(gears.table.join(
awful.button({ },function () awful.layout.inc( 1) end),function () awful.layout.inc(-1) end),function () awful.layout.inc(-1) end)))
-- Create a taglist widget
s.mytaglist = awful.widget.taglist {
screen = s,filter = awful.widget.taglist.filter.all,buttons = taglist_buttons
}
-- Create a tasklist widget
s.mytasklist = awful.widget.tasklist {
screen = s,filter = awful.widget.tasklist.filter.currenttags,buttons = tasklist_buttons,layout = tasklist_layout,widget_template = tasklist_template
}
s.add_button = {
widget = wiBox.container.background,bg = "#FF0000",fg = "#FFFFFF",text = "I don't want to be wrapped !"
}
}
-- Create the wiBox
s.mywiBox = awful.wibar({ position = "top",screen = s })
-- Add widgets to the wiBox
s.mywiBox:setup {
layout = wiBox.layout.align.horizontal,{ -- Left widgets
layout = wiBox.layout.fixed.horizontal,mylauncher,s.mytaglist,s.mypromptBox,},{ -- Middle widget
layout = wiBox.layout.fixed.horizontal,s.mytasklist,s.add_button,{ -- Right widgets
layout = wiBox.layout.fixed.horizontal,mykeyboardlayout,wiBox.widget.systray(),mytextclock,s.mylayoutBox,}
end)
-- }}}
-- {{{ Mouse bindings
root.buttons(gears.table.join(
awful.button({ },function () mymainmenu:toggle() end),awful.tag.viewnext),awful.tag.viewprev)
))
-- }}}
-- {{{ Key bindings
globalkeys = gears.table.join(
awful.key({ modkey,"s",hotkeys_popup.show_help,{description="show help",group="awesome"}),awful.key({ modkey,"Left",awful.tag.viewprev,{description = "view prevIoUs",group = "tag"}),"Right",awful.tag.viewnext,{description = "view next","Escape",awful.tag.history.restore,{description = "go back","j",function ()
awful.client.focus.byidx( 1)
end,{description = "focus next by index",group = "client"}
),"k",function ()
awful.client.focus.byidx(-1)
end,{description = "focus prevIoUs by index","w",function () mymainmenu:show() end,{description = "show main menu",group = "awesome"}),-- Layout manipulation
awful.key({ modkey,"Shift" },function () awful.client.swap.byidx( 1) end,{description = "swap with next client by index",group = "client"}),function () awful.client.swap.byidx( -1) end,{description = "swap with prevIoUs client by index","Control" },function () awful.screen.focus_relative( 1) end,{description = "focus the next screen",group = "screen"}),function () awful.screen.focus_relative(-1) end,{description = "focus the prevIoUs screen","u",awful.client.urgent.jumpto,{description = "jump to urgent client","Tab",function ()
awful.client.focus.history.prevIoUs()
if client.focus then
client.focus:raise()
end
end,-- Standard program
awful.key({ modkey,"Return",function () awful.spawn(terminal) end,{description = "open a terminal",group = "launcher"}),"r",awesome.restart,{description = "reload awesome","q",awesome.quit,{description = "quit awesome","l",function () awful.tag.incmwfact( 0.05) end,{description = "increase master width factor",group = "layout"}),"h",function () awful.tag.incmwfact(-0.05) end,{description = "decrease master width factor",function () awful.tag.incnmaster( 1,true) end,{description = "increase the number of master clients",function () awful.tag.incnmaster(-1,{description = "decrease the number of master clients",function () awful.tag.incncol( 1,true) end,{description = "increase the number of columns",function () awful.tag.incncol(-1,{description = "decrease the number of columns","space",function () awful.layout.inc( 1) end,{description = "select next",function () awful.layout.inc(-1) end,{description = "select prevIoUs","n",function ()
local c = awful.client.restore()
-- Focus restored client
if c then
c:emit_signal(
"request::activate","key.unminimize",{raise = true}
)
end
end,{description = "restore minimized",-- Prompt
awful.key({ modkey },function () awful.screen.focused().mypromptBox:run() end,{description = "run prompt",awful.key({ modkey },"x",function ()
awful.prompt.run {
prompt = "Run Lua code: ",textBox = awful.screen.focused().mypromptBox.widget,exe_callback = awful.util.eval,history_path = awful.util.get_cache_dir() .. "/history_eval"
}
end,{description = "lua execute prompt",-- Menubar
awful.key({ modkey },"p",function() menubar.show() end,{description = "show the menubar",group = "launcher"})
)
clientkeys = gears.table.join(
awful.key({ modkey,"f",function (c)
c.fullscreen = not c.fullscreen
c:raise()
end,{description = "toggle fullscreen","c",function (c) c:kill() end,{description = "close",awful.client.floating.toggle,{description = "toggle floating",function (c) c:swap(awful.client.getmaster()) end,{description = "move to master","o",function (c) c:move_to_screen() end,{description = "move to screen","t",function (c) c.ontop = not c.ontop end,{description = "toggle keep on top",function (c)
-- The client currently has the input focus,so it cannot be
-- minimized,since minimized clients can't have the focus.
c.minimized = true
end,{description = "minimize","m",function (c)
c.maximized = not c.maximized
c:raise()
end,{description = "(un)maximize",function (c)
c.maximized_vertical = not c.maximized_vertical
c:raise()
end,{description = "(un)maximize vertically",function (c)
c.maximized_horizontal = not c.maximized_horizontal
c:raise()
end,{description = "(un)maximize horizontally",group = "client"})
)
-- Bind all key numbers to tags.
-- Be careful: we use keycodes to make it work on any keyboard layout.
-- This should map on the top row of your keyboard,usually 1 to 9.
for i = 1,9 do
globalkeys = gears.table.join(globalkeys,-- View tag only.
awful.key({ modkey },"#" .. i + 9,function ()
local screen = awful.screen.focused()
local tag = screen.tags[i]
if tag then
tag:view_only()
end
end,{description = "view tag #"..i,-- Toggle tag display.
awful.key({ modkey,function ()
local screen = awful.screen.focused()
local tag = screen.tags[i]
if tag then
awful.tag.viewtoggle(tag)
end
end,{description = "toggle tag #" .. i,-- Move client to tag.
awful.key({ modkey,"Shift" },function ()
if client.focus then
local tag = client.focus.screen.tags[i]
if tag then
client.focus:move_to_tag(tag)
end
end
end,{description = "move focused client to tag #"..i,-- Toggle tag on focused client.
awful.key({ modkey,"Control",function ()
if client.focus then
local tag = client.focus.screen.tags[i]
if tag then
client.focus:toggle_tag(tag)
end
end
end,{description = "toggle focused client on tag #" .. i,group = "tag"})
)
end
clientbuttons = gears.table.join(
awful.button({ },function (c)
c:emit_signal("request::activate","mouse_click",{raise = true})
end),{raise = true})
awful.mouse.client.move(c)
end),{raise = true})
awful.mouse.client.resize(c)
end)
)
-- Set keys
root.keys(globalkeys)
-- }}}
-- {{{ Rules
-- Rules to apply to new clients (through the "manage" signal).
awful.rules.rules = {
-- All clients will match this rule.
{ rule = { },properties = { border_width = beautiful.border_width,border_color = beautiful.border_normal,focus = awful.client.focus.filter,raise = true,keys = clientkeys,buttons = clientbuttons,screen = awful.screen.preferred,placement = awful.placement.no_overlap+awful.placement.no_offscreen
}
},-- Floating clients.
{ rule_any = {
instance = {
"DTA",-- Firefox addon DownThemAll.
"copyq",-- Includes session name in class.
"pinentry",class = {
"arandr","Blueman-manager","Gpick","Kruler","MessageWin",-- kalarm.
"Sxiv","Tor browser",-- Needs a fixed window size to avoid fingerprinting by screen size.
"Wpa_gui","veromix","xtightvncviewer"},-- Note that the name property shown in xprop might be set slightly after creation of the client
-- and the name shown there might not match defined rules here.
name = {
"Event Tester",-- xev.
},role = {
"AlarmWindow",-- Thunderbird's calendar.
"ConfigManager",-- Thunderbird's about:config.
"pop-up",-- e.g. Google Chrome's (detached) Developer Tools.
}
},properties = { floating = true }},-- Add titlebars to normal clients and dialogs
{ rule_any = {type = { "normal","dialog" }
},properties = { titlebars_enabled = true }
},-- Set Firefox to always map on the tag named "2" on screen 1.
-- { rule = { class = "Firefox" },-- properties = { screen = 1,tag = "2" } },}
-- }}}
-- {{{ Signals
-- Signal function to execute when a new client appears.
client.connect_signal("manage",function (c)
-- Set the windows at the slave,-- i.e. put it at the end of others instead of setting it master.
-- if not awesome.startup then awful.client.setslave(c) end
if awesome.startup
and not c.size_hints.user_position
and not c.size_hints.program_position then
-- Prevent clients from being unreachable after screen count changes.
awful.placement.no_offscreen(c)
end
end)
-- Add a titlebar if titlebars_enabled is set to true in the rules.
client.connect_signal("request::titlebars",function(c)
-- buttons for the titlebar
local buttons = gears.table.join(
awful.button({ },function()
c:emit_signal("request::activate","titlebar",{raise = true})
awful.mouse.client.move(c)
end),{raise = true})
awful.mouse.client.resize(c)
end)
)
awful.titlebar(c) : setup {
{ -- Left
awful.titlebar.widget.iconwidget(c),buttons = buttons,layout = wiBox.layout.fixed.horizontal
},{ -- Middle
{ -- Title
align = "center",widget = awful.titlebar.widget.titlewidget(c)
},layout = wiBox.layout.flex.horizontal
},{ -- Right
awful.titlebar.widget.floatingbutton (c),awful.titlebar.widget.maximizedbutton(c),awful.titlebar.widget.stickybutton (c),awful.titlebar.widget.ontopbutton (c),awful.titlebar.widget.closebutton (c),layout = wiBox.layout.fixed.horizontal()
},layout = wiBox.layout.align.horizontal
}
end)
-- Enable sloppy focus,so that focus follows mouse.
client.connect_signal("mouse::enter",function(c)
c:emit_signal("request::activate","mouse_enter",{raise = false})
end)
client.connect_signal("focus",function(c) c.border_color = beautiful.border_focus end)
client.connect_signal("unfocus",function(c) c.border_color = beautiful.border_normal end)
-- }}}
相关部分是：
- 任务列表变量定义：
local tasklist_layout = {
layout = wiBox.layout.flex.horizontal,text = "X"
}
}
}
}
- 面板配置：
-- Create a tasklist widget
s.mytasklist = awful.widget.tasklist {
screen = s,}
编辑：在尝试了Uli Schlachter解决方案后，文本框的内容没有缩小，但停留在右侧
解决方法
最后，我可以使它使用自定义布局：复制wibox.layout.align文件并对其进行编辑以使其适合我的需求。 我最终得到的布局最多可以包含3个小部件：prepend，main和append prepend和append小部件的大小是固定的，并且main占据其自己的空间或剩余空间。
注意1：此布局具有应该可以使用的垂直模式，但我尚未对其进行测试。
注2：如果prepend和append小部件的宽度大于其父级的宽度，我还没有测试会发生什么...
以下是结果的屏幕截图：
布局代码：
local base = require("wibox.widget.base")
local layout = {}
-- Calculate the layout.
-- @param context The context in which we are drawn.
-- @param width The available width.
-- @param height The available height.
function layout:layout(context,width,height)
local result = {}
local prepend_width,prepend_height = 0,0
if self._private.prepend then
prepend_width,prepend_height = base.fit_widget(self,context,self._private.prepend,height)
end
local append_width,append_height = 0,0
if self._private.append then
append_width,append_height = base.fit_widget(self,self._private.append,height)
end
local width_remains = self._private.dir == "x" and (width - prepend_width - append_width) or width
local height_remains = self._private.dir == "y" and (height - prepend_height - append_height) or height
local main_width,main_height = base.fit_widget(self,self._private.main,width_remains,height_remains)
if self._private.prepend then
local x,y,w,h = 0,height
if self._private.dir == "x" then
w = prepend_width
elseif self._private.dir == "y" then
h = prepend_height
end
table.insert(result,base.place_widget_at(self._private.prepend,x,h))
end
if self._private.main then
local x,height
if self._private.dir == "x" then
x = prepend_width
w = main_width
elseif self._private.dir == "y" then
y = prepend_height
h = main_height
end
table.insert(result,base.place_widget_at(self._private.main,h))
end
if self._private.append then
local x,height
if self._private.dir == "x" then
x = prepend_width + main_width
w = append_width
elseif self._private.dir == "y" then
y = prepend_height + main_height
h = append_height
end
table.insert(result,base.place_widget_at(self._private.append,h))
end
return result
end
--- Set the layout's prepend widget.
-- This is the widget which is before the main widget
-- @property prepend
-- @tparam widget prepend
-- @propemits true false
function layout:set_prepend(widget)
if self._private.prepend == widget then
return
end
self._private.prepend = widget
self:emit_signal("widget::layout_changed")
self:emit_signal("property::prepend",widget)
end
--- Set the layout's main widget. This is the centered one.
-- @property main
-- @tparam widget main
-- @propemits true false
function layout:set_main(widget)
if self._private.main == widget then
return
end
self._private.main = widget
self:emit_signal("widget::layout_changed")
self:emit_signal("property::main",widget)
end
--- Set the layout's append widget.
-- This is the widget which is after the main widget
-- @property append
-- @tparam widget append
-- @propemits true false
function layout:set_append(widget)
if self._private.append == widget then
return
end
self._private.append = widget
self:emit_signal("widget::layout_changed")
self:emit_signal("property::append",widget)
end
for _,prop in ipairs {"prepend","main","append" } do
layout["get_"..prop] = function(self)
return self._private[prop]
end
end
function layout:get_children()
return gears.table.from_sparse {self._private.prepend,self._private.append}
end
function layout:set_children(children)
self:set_prepend(children[1])
self:set_main(children[2])
self:set_append(children[3])
end
-- Fit the layout into the given space. The layout will
-- ask for the sum of the sizes of its sub-widgets in its direction
-- and the largest sized sub widget in the other direction.
-- @param context The context in which we are fit.
-- @param orig_width The available width.
-- @param orig_height The available height.
function layout:fit(context,orig_width,orig_height)
local used_in_dir = 0
local used_in_other = 0
for _,v in pairs{self._private.prepend,self._private.append} do
local w,h = base.fit_widget(self,v,orig_height)
local max = self._private.dir == "y" and w or h
if max > used_in_other then
used_in_other = max
end
used_in_dir = used_in_dir + (self._private.dir == "y" and h or w)
end
if self._private.dir == "y" then
return used_in_other,used_in_dir
end
return used_in_dir,used_in_other
end
function layout:reset()
for _,v in pairs({ "prepend","append" }) do
self[v] = nil
end
self:emit_signal("widget::layout_changed")
end
local function get_layout(dir,prepend,main,append)
local ret = base.make_widget(nil,nil,{enable_properties = true})
ret._private.dir = dir
for k,v in pairs(layout) do
if type(v) == "function" then
rawset(ret,k,v)
end
end
ret:set_prepend(prepend)
ret:set_main(main)
ret:set_append(append)
-- The layout allow set_children to have empty entries
ret.allow_empty_widget = true
return ret
end
--- Returns a new horizontal layout. This layout can display up to three widgets.
-- :set_prepend() sets a widget with a fixed size at the beginning.
-- :set_append() sets a widget with a fixed size at the end.
-- :set_main() sets a widget which shrink if their is not enough space.
-- @tparam[opt] widget prepend Widget to be put to the beginning.
-- @tparam[opt] widget main Widget to be put to the middle.
-- @tparam[opt] widget append Widget to be put to the end.
function layout.horizontal(prepend,append)
local ret = get_layout("x",append)
return ret
end
--- Returns a new vertical layout. This layout can display up to three widgets.
-- :set_prepend() sets a widget with a fixed size at the beginning.
-- :set_append() sets a widget with a fixed size at the end.
-- :set_main() sets a widget which shrink if their is not enough space.
-- @tparam[opt] widget prepend Widget to be put to the beginning.
-- @tparam[opt] widget main Widget to be put to the middle.
-- @tparam[opt] widget append Widget to be put to the end.
function layout.vertical(prepend,append)
local ret = get_layout("y",append)
return ret
end
return layout
还有一个用例：
local customLayout = require('CustomLayout')
-- ...
awful.screen.connect_for_each_screen(function(s)
-- ...
-- Add widgets to the wibox
s.mywibox:setup {
layout = wibox.layout.align.horizontal,{ -- Left widgets
-- ...
},{ -- Middle widget
layout = customLayout.horizontal,{
widget = wibox.container.background,bg = "#FF0000",fg = "#FFFFFF",{
widget = wibox.widget.textbox,text = "Prepend content"
}
},s.mytasklist,text = "Append content"
}
},},{ -- Right widgets
-- ...
},}
我懒得去测试的随机驱车想法：
{ -- Middle widget
layout = wibox.layout.align.horizontal,expand = "inside",s.add_button,我不确定这是否满足您的要求。抱歉。