681 lines
21 KiB
Lua
681 lines
21 KiB
Lua
--------------------------------------------------------------------------------
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--- A menu for awful
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--
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-- @author Damien Leone <damien.leone@gmail.com>
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-- @author Julien Danjou <julien@danjou.info>
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-- @author dodo
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-- @copyright 2008, 2011 Damien Leone, Julien Danjou, dodo
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-- @release @AWESOME_VERSION@
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-- @module awful.menu
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--------------------------------------------------------------------------------
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local wibox = require("wibox")
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local button = require("awful.button")
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local util = require("awful.util")
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local tags = require("awful.tag")
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local keygrabber = require("awful.keygrabber")
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local beautiful = require("beautiful")
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local object = require("gears.object")
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local surface = require("gears.surface")
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local cairo = require("lgi").cairo
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local setmetatable = setmetatable
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local tonumber = tonumber
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local string = string
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local ipairs = ipairs
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local pairs = pairs
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local pcall = pcall
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local print = print
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local table = table
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local type = type
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local math = math
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local capi = {
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screen = screen,
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mouse = mouse,
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client = client }
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local menu = { mt = {} }
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local table_update = function (t, set)
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for k, v in pairs(set) do
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t[k] = v
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end
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return t
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end
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local table_merge = function (t, set)
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for _, v in ipairs(set) do
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table.insert(t, v)
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end
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end
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--- Key bindings for menu navigation.
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-- Keys are: up, down, exec, enter, back, close. Value are table with a list of valid
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-- keys for the action, i.e. menu_keys.up = { "j", "k" } will bind 'j' and 'k'
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-- key to up action. This is common to all created menu.
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-- @class table
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-- @name menu_keys
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menu.menu_keys = { up = { "Up", "k" },
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down = { "Down", "j" },
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back = { "Left", "h" },
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exec = { "Return" },
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enter = { "Right", "l" },
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close = { "Escape" } }
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local function load_theme(a, b)
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a = a or {}
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b = b or {}
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local ret = {}
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local fallback = beautiful.get()
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if a.reset then b = fallback end
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if a == "reset" then a = fallback end
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ret.border = a.border_color or b.menu_border_color or b.border_normal or
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fallback.menu_border_color or fallback.border_normal
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ret.border_width= a.border_width or b.menu_border_width or b.border_width or
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fallback.menu_border_width or fallback.border_width or 0
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ret.fg_focus = a.fg_focus or b.menu_fg_focus or b.fg_focus or
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fallback.menu_fg_focus or fallback.fg_focus
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ret.bg_focus = a.bg_focus or b.menu_bg_focus or b.bg_focus or
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fallback.menu_bg_focus or fallback.bg_focus
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ret.fg_normal = a.fg_normal or b.menu_fg_normal or b.fg_normal or
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fallback.menu_fg_normal or fallback.fg_normal
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ret.bg_normal = a.bg_normal or b.menu_bg_normal or b.bg_normal or
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fallback.menu_bg_normal or fallback.bg_normal
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ret.submenu_icon= a.submenu_icon or b.menu_submenu_icon or b.submenu_icon or
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fallback.menu_submenu_icon or fallback.submenu_icon
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ret.submenu = a.submenu or b.menu_submenu or b.submenu or
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fallback.menu_submenu or fallback.submenu or "▶"
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ret.height = a.height or b.menu_height or b.height or
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fallback.menu_height or 16
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ret.width = a.width or b.menu_width or b.width or
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fallback.menu_width or 100
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ret.font = a.font or b.font or fallback.font
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for _, prop in ipairs({"width", "height", "menu_width"}) do
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if type(ret[prop]) ~= "number" then ret[prop] = tonumber(ret[prop]) end
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end
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return ret
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end
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local function item_position(_menu, child)
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local in_dir, other, a, b = 0, 0, "height", "width"
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local dir = _menu.layout.dir or "y"
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if dir == "x" then a, b = b, a end
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local in_dir, other = 0, _menu[b]
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local num = util.table.hasitem(_menu.child, child)
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if num then
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for i = 0, num - 1 do
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local item = _menu.items[i]
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if item then
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other = math.max(other, item[b])
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in_dir = in_dir + item[a]
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end
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end
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end
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local w, h = other, in_dir
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if dir == "x" then w, h = h, w end
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return w, h
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end
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local function set_coords(_menu, screen_idx, m_coords)
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local s_geometry = capi.screen[screen_idx].workarea
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local screen_w = s_geometry.x + s_geometry.width
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local screen_h = s_geometry.y + s_geometry.height
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_menu.width = _menu.wibox.width
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_menu.height = _menu.wibox.height
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_menu.x = _menu.wibox.x
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_menu.y = _menu.wibox.y
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if _menu.parent then
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local w, h = item_position(_menu.parent, _menu)
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w = w + _menu.parent.theme.border_width
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_menu.y = _menu.parent.y + h + _menu.height > screen_h and
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screen_h - _menu.height or _menu.parent.y + h
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_menu.x = _menu.parent.x + w + _menu.width > screen_w and
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_menu.parent.x - _menu.width or _menu.parent.x + w
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else
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if m_coords == nil then
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m_coords = capi.mouse.coords()
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m_coords.x = m_coords.x + 1
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m_coords.y = m_coords.y + 1
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end
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_menu.y = m_coords.y < s_geometry.y and s_geometry.y or m_coords.y
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_menu.x = m_coords.x < s_geometry.x and s_geometry.x or m_coords.x
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_menu.y = _menu.y + _menu.height > screen_h and
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screen_h - _menu.height or _menu.y
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_menu.x = _menu.x + _menu.width > screen_w and
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screen_w - _menu.width or _menu.x
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end
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_menu.wibox.x = _menu.x
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_menu.wibox.y = _menu.y
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end
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local function set_size(_menu)
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local in_dir, other, a, b = 0, 0, "height", "width"
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local dir = _menu.layout.dir or "y"
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if dir == "x" then a, b = b, a end
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for _, item in ipairs(_menu.items) do
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other = math.max(other, item[b])
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in_dir = in_dir + item[a]
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end
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_menu[a], _menu[b] = in_dir, other
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if in_dir > 0 and other > 0 then
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_menu.wibox[a] = in_dir
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_menu.wibox[b] = other
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return true
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end
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return false
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end
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local function check_access_key(_menu, key)
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for i, item in ipairs(_menu.items) do
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if item.akey == key then
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_menu:item_enter(i)
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_menu:exec(i, { exec = true })
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return
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end
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end
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if _menu.parent then
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check_access_key(_menu.parent, key)
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end
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end
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local function grabber(_menu, mod, key, event)
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if event ~= "press" then return end
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local sel = _menu.sel or 0
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if util.table.hasitem(menu.menu_keys.up, key) then
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local sel_new = sel-1 < 1 and #_menu.items or sel-1
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_menu:item_enter(sel_new)
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elseif util.table.hasitem(menu.menu_keys.down, key) then
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local sel_new = sel+1 > #_menu.items and 1 or sel+1
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_menu:item_enter(sel_new)
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elseif sel > 0 and util.table.hasitem(menu.menu_keys.enter, key) then
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_menu:exec(sel)
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elseif sel > 0 and util.table.hasitem(menu.menu_keys.exec, key) then
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_menu:exec(sel, { exec = true })
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elseif util.table.hasitem(menu.menu_keys.back, key) then
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_menu:hide()
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elseif util.table.hasitem(menu.menu_keys.close, key) then
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menu.get_root(_menu):hide()
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else
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check_access_key(_menu, key)
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end
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end
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function menu:exec(num, opts)
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opts = opts or {}
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local item = self.items[num]
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if not item then return end
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local cmd = item.cmd
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if type(cmd) == "table" then
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local action = cmd.cmd
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if #cmd == 0 then
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if opts.exec and action and type(action) == "function" then
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action()
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end
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return
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end
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if not self.child[num] then
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self.child[num] = menu.new(cmd, self)
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end
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local can_invoke_action = opts.exec and
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action and type(action) == "function" and
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(not opts.mouse or (opts.mouse and (self.auto_expand or
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(self.active_child == self.child[num] and
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self.active_child.wibox.visible))))
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if can_invoke_action then
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local visible = action(self.child[num], item)
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if not visible then
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menu.get_root(self):hide()
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return
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else
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self.child[num]:update()
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end
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end
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if self.active_child and self.active_child ~= self.child[num] then
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self.active_child:hide()
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end
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self.active_child = self.child[num]
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if not self.active_child.visible then
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self.active_child:show()
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end
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elseif type(cmd) == "string" then
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menu.get_root(self):hide()
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util.spawn(cmd)
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elseif type(cmd) == "function" then
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local visible, action = cmd(item, self)
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if not visible then
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menu.get_root(self):hide()
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else
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self:update()
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if self.items[num] then
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self:item_enter(num, opts)
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end
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end
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if action and type(action) == "function" then
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action()
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end
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end
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end
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function menu:item_enter(num, opts)
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opts = opts or {}
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local item = self.items[num]
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if num == nil or self.sel == num or not item then
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return
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elseif self.sel then
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self:item_leave(self.sel)
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end
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--print("sel", num, menu.sel, item.theme.bg_focus)
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item._background:set_fg(item.theme.fg_focus)
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item._background:set_bg(item.theme.bg_focus)
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self.sel = num
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if self.auto_expand and opts.hover then
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if self.active_child then
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self.active_child:hide()
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self.active_child = nil
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end
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if type(item.cmd) == "table" then
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self:exec(num, opts)
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end
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end
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end
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function menu:item_leave(num)
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--print("leave", num)
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local item = self.items[num]
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if item then
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item._background:set_fg(item.theme.fg_normal)
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item._background:set_bg(item.theme.bg_normal)
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end
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end
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--- Show a menu.
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-- @param args The arguments
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-- @param args.coords Menu position defaulting to mouse.coords()
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function menu:show(args)
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args = args or {}
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local coords = args.coords or nil
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local screen_index = capi.mouse.screen
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if not set_size(self) then return end
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set_coords(self, screen_index, coords)
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keygrabber.run(self._keygrabber)
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self.wibox.visible = true
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end
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--- Hide a menu popup.
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function menu:hide()
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-- Remove items from screen
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for i = 1, #self.items do
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self:item_leave(i)
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end
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if self.active_child then
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self.active_child:hide()
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self.active_child = nil
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end
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self.sel = nil
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keygrabber.stop(self._keygrabber)
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self.wibox.visible = false
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end
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--- Toggle menu visibility.
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-- @param args The arguments
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-- @param args.coords Menu position {x,y}
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function menu:toggle(args)
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if self.wibox.visible then
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self:hide()
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else
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self:show(args)
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end
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end
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--- Update menu content
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function menu:update()
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if self.wibox.visible then
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self:show({ coords = { x = self.x, y = self.y } })
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end
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end
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--- Get the elder parent so for example when you kill
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-- it, it will destroy the whole family.
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function menu:get_root()
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return self.parent and menu.get_root(self.parent) or self
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end
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--- Add a new menu entry.
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-- args.* params needed for the menu entry constructor.
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-- @param args The item params
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-- @param args.new (Default: awful.menu.entry) The menu entry constructor.
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-- @param[opt] args.theme The menu entry theme.
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-- @param[opt] index The index where the new entry will inserted.
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function menu:add(args, index)
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if not args then return end
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local theme = load_theme(args.theme or {}, self.theme)
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args.theme = theme
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args.new = args.new or menu.entry
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local success, item = pcall(args.new, self, args)
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if not success then
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print("Error while creating menu entry: " .. item)
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return
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end
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if not item.widget then
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print("Error while checking menu entry: no property widget found.")
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return
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end
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item.parent = self
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item.theme = item.theme or theme
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item.width = item.width or theme.width
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item.height = item.height or theme.height
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wibox.widget.base.check_widget(item.widget)
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item._background = wibox.widget.background()
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item._background:set_widget(item.widget)
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item._background:set_fg(item.theme.fg_normal)
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item._background:set_bg(item.theme.bg_normal)
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-- Create bindings
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item._background:buttons(util.table.join(
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button({}, 3, function () self:hide() end),
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button({}, 1, function ()
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local num = util.table.hasitem(self.items, item)
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self:item_enter(num, { mouse = true })
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self:exec(num, { exec = true, mouse = true })
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end )))
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item._mouse = function ()
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local num = util.table.hasitem(self.items, item)
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self:item_enter(num, { hover = true, moue = true })
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end
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item.widget:connect_signal("mouse::enter", item._mouse)
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if index then
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self.layout:reset()
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table.insert(self.items, index, item)
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for _, i in ipairs(self.items) do
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self.layout:add(i._background)
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end
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else
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table.insert(self.items, item)
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self.layout:add(item._background)
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end
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return item
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end
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--- Delete menu entry at given position
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-- @param num The position in the table of the menu entry to be deleted; can be also the menu entry itself
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function menu:delete(num)
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if type(num) == "table" then
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num = util.table.hasitem(self.items, num)
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end
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local item = self.items[num]
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if not item then return end
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item.widget:disconnect_signal("mouse::enter", item._mouse)
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item.widget.visible = false
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table.remove(self.items, num)
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if self.sel == num then
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self:item_leave(self.sel)
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self.sel = nil
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end
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self.layout:reset()
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for _, i in ipairs(self.items) do
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self.layout:add(i._background)
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end
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if self.child[num] then
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self.child[num]:hide()
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if self.active_child == self.child[num] then
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self.active_child = nil
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end
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table.remove(self.child, num)
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end
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end
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--------------------------------------------------------------------------------
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--- Build a popup menu with running clients and shows it.
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-- @param args Menu table, see new() function for more informations
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-- @param item_args Table that will be merged into each item, see new() for more
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-- informations.
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-- @return The menu.
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function menu.clients(args, item_args)
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local cls = capi.client.get()
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local cls_t = {}
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for k, c in pairs(cls) do
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cls_t[#cls_t + 1] = {
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c.name or "",
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function ()
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if not c:isvisible() then
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tags.viewmore(c:tags(), c.screen)
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end
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capi.client.focus = c
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c:raise()
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end,
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c.icon }
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if item_args then
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if type(item_args) == "function" then
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table_merge(cls_t[#cls_t], item_args(c))
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else
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table_merge(cls_t[#cls_t], item_args)
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end
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end
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end
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args = args or {}
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args.items = args.items or {}
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table_merge(args.items, cls_t)
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local m = menu.new(args)
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m:show(args)
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return m
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end
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--------------------------------------------------------------------------------
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--- Default awful.menu.entry constructor
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-- @param parent The parent menu
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-- @param args the item params
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-- @return table with 'widget', 'cmd', 'akey' and all the properties the user wants to change
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function menu.entry(parent, args)
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args = args or {}
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args.text = args[1] or args.text or ""
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args.cmd = args[2] or args.cmd
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args.icon = args[3] or args.icon
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local ret = {}
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-- Create the item label widget
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local label = wibox.widget.textbox()
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local key = ''
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label:set_font(args.theme.font)
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label:set_markup(string.gsub(
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util.escape(args.text), "&(%w)",
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function (l)
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key = string.lower(l)
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|
return "<u>" .. l .. "</u>"
|
|
end, 1))
|
|
-- Set icon if needed
|
|
local icon, iconbox
|
|
local margin = wibox.layout.margin()
|
|
margin:set_widget(label)
|
|
if args.icon then
|
|
icon = surface.load(args.icon)
|
|
end
|
|
if icon then
|
|
local iw = icon:get_width()
|
|
local ih = icon:get_height()
|
|
if iw > args.theme.width or ih > args.theme.height then
|
|
local w, h
|
|
if ((args.theme.height / ih) * iw) > args.theme.width then
|
|
w, h = args.theme.height, (args.theme.height / iw) * ih
|
|
else
|
|
w, h = (args.theme.height / ih) * iw, args.theme.height
|
|
end
|
|
-- We need to scale the image to size w x h
|
|
local img = cairo.ImageSurface(cairo.Format.ARGB32, w, h)
|
|
local cr = cairo.Context(img)
|
|
cr:scale(w / iw, h / ih)
|
|
cr:set_source_surface(icon, 0, 0)
|
|
cr:paint()
|
|
icon = img
|
|
end
|
|
iconbox = wibox.widget.imagebox()
|
|
if iconbox:set_image(icon) then
|
|
margin:set_left(2)
|
|
else
|
|
iconbox = nil
|
|
end
|
|
end
|
|
if not iconbox then
|
|
margin:set_left(args.theme.height + 2)
|
|
end
|
|
-- Create the submenu icon widget
|
|
local submenu
|
|
if type(args.cmd) == "table" then
|
|
if args.theme.submenu_icon then
|
|
submenu = wibox.widget.imagebox()
|
|
submenu:set_image(surface.load(args.theme.submenu_icon))
|
|
else
|
|
submenu = wibox.widget.textbox()
|
|
submenu:set_font(args.theme.font)
|
|
submenu:set_text(args.theme.submenu)
|
|
end
|
|
end
|
|
-- Add widgets to the wibox
|
|
local left = wibox.layout.fixed.horizontal()
|
|
if iconbox then
|
|
left:add(iconbox)
|
|
end
|
|
-- This contains the label
|
|
left:add(margin)
|
|
|
|
local layout = wibox.layout.align.horizontal()
|
|
layout:set_left(left)
|
|
if submenu then
|
|
layout:set_right(submenu)
|
|
end
|
|
|
|
return table_update(ret, {
|
|
label = label,
|
|
sep = submenu,
|
|
icon = iconbox,
|
|
widget = layout,
|
|
cmd = args.cmd,
|
|
akey = key,
|
|
})
|
|
end
|
|
|
|
--------------------------------------------------------------------------------
|
|
|
|
--- Create a menu popup.
|
|
-- @param args Table containing the menu informations.
|
|
--
|
|
-- * Key items: Table containing the displayed items. Each element is a table by default (when element 'new' is awful.menu.entry) containing: item name, triggered action, submenu table or function, item icon (optional).
|
|
-- * Keys theme.[fg|bg]_[focus|normal], theme.border_color, theme.border_width, theme.submenu_icon, theme.height and theme.width override the default display for your menu and/or of your menu entry, each of them are optional.
|
|
-- * Key auto_expand controls the submenu auto expand behaviour by setting it to true (default) or false.
|
|
--
|
|
-- @param parent Specify the parent menu if we want to open a submenu, this value should never be set by the user.
|
|
-- @usage -- The following function builds and shows a menu of clients that match
|
|
-- -- a particular rule.
|
|
-- -- Bound to a key, it can be used to select from dozens of terminals open on
|
|
-- -- several tags.
|
|
-- -- When using @{rules.match_any} instead of @{rules.match},
|
|
-- -- a menu of clients with different classes could be build.
|
|
--
|
|
-- function terminal_menu ()
|
|
-- terms = {}
|
|
-- for i, c in pairs(client.get()) do
|
|
-- if awful.rules.match(c, {class = "URxvt"}) then
|
|
-- terms[i] =
|
|
-- {c.name,
|
|
-- function()
|
|
-- awful.tag.viewonly(c:tags()[1])
|
|
-- client.focus = c
|
|
-- end,
|
|
-- c.icon
|
|
-- }
|
|
-- end
|
|
-- end
|
|
-- awful.menu(terms):show()
|
|
-- end
|
|
function menu.new(args, parent)
|
|
args = args or {}
|
|
args.layout = args.layout or wibox.layout.flex.vertical
|
|
local _menu = table_update(object(), {
|
|
item_enter = menu.item_enter,
|
|
item_leave = menu.item_leave,
|
|
get_root = menu.get_root,
|
|
delete = menu.delete,
|
|
update = menu.update,
|
|
toggle = menu.toggle,
|
|
hide = menu.hide,
|
|
show = menu.show,
|
|
exec = menu.exec,
|
|
add = menu.add,
|
|
child = {},
|
|
items = {},
|
|
parent = parent,
|
|
layout = args.layout(),
|
|
theme = load_theme(args.theme or {}, parent and parent.theme) })
|
|
|
|
if parent then
|
|
_menu.auto_expand = parent.auto_expand
|
|
elseif args.auto_expand ~= nil then
|
|
_menu.auto_expand = args.auto_expand
|
|
else
|
|
_menu.auto_expand = true
|
|
end
|
|
|
|
-- Create items
|
|
for i, v in ipairs(args) do _menu:add(v) end
|
|
if args.items then
|
|
for i, v in pairs(args.items) do _menu:add(v) end
|
|
end
|
|
|
|
_menu._keygrabber = function (...)
|
|
grabber(_menu, ...)
|
|
end
|
|
|
|
_menu.wibox = wibox({
|
|
ontop = true,
|
|
fg = _menu.theme.fg_normal,
|
|
bg = _menu.theme.bg_normal,
|
|
border_color = _menu.theme.border,
|
|
border_width = _menu.theme.border_width,
|
|
type = "popup_menu" })
|
|
_menu.wibox.visible = false
|
|
_menu.wibox:set_widget(_menu.layout)
|
|
set_size(_menu)
|
|
|
|
_menu.x = _menu.wibox.x
|
|
_menu.y = _menu.wibox.y
|
|
return _menu
|
|
end
|
|
|
|
function menu.mt:__call(...)
|
|
return menu.new(...)
|
|
end
|
|
|
|
return setmetatable(menu, menu.mt)
|
|
|
|
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
|