393 lines
12 KiB
Lua
393 lines
12 KiB
Lua
---------------------------------------------------------------------------
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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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-- @copyright 2008 Damien Leone, Julien Danjou
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-- @release @AWESOME_VERSION@
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---------------------------------------------------------------------------
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-- Grab environment we need
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local pairs = pairs
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local table = table
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local type = type
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local setmetatable = setmetatable
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local wibox = wibox
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local image = image
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local widget = widget
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local button = require("awful.button")
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local capi =
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{
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screen = screen,
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mouse = mouse,
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client = client,
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keygrabber = keygrabber
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}
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local util = require("awful.util")
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local tags = require("awful.tag")
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local layout = require("awful.widget.layout")
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local awbeautiful = require("beautiful")
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local tonumber = tonumber
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--- Creation of menus.
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module("awful.menu")
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local cur_menu
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--- Key bindings for menu navigation.
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-- Keys are: up, down, exec, 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_keys = { up = { "Up" },
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down = { "Down" },
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exec = { "Return", "Right" },
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back = { "Left" },
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close = { "Escape" } }
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local function load_theme(custom)
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local theme = {}
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local beautiful
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beautiful = awbeautiful.get()
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theme.fg_focus = custom.fg_focus or beautiful.menu_fg_focus or beautiful.fg_focus
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theme.bg_focus = custom.bg_focus or beautiful.menu_bg_focus or beautiful.bg_focus
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theme.fg_normal = custom.fg_normal or beautiful.menu_fg_normal or beautiful.fg_normal
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theme.bg_normal = custom.bg_normal or beautiful.menu_bg_normal or beautiful.bg_normal
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theme.submenu_icon = custom.submenu_icon or beautiful.menu_submenu_icon
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theme.menu_height = custom.height or beautiful.menu_height or 16
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theme.menu_width = custom.width or beautiful.menu_width or 100
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theme.border = custom.border_color or beautiful.menu_border_color or beautiful.border_normal
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theme.border_width = custom.border_width or beautiful.menu_border_width or beautiful.border_width
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return theme
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end
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local function item_leave(menu, num)
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if num > 0 then
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menu.items[num].wibox.fg = menu.theme.fg_normal
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menu.items[num].wibox.bg = menu.theme.bg_normal
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end
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end
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--- Hide a menu popup.
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-- @param menu The menu to hide.
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function hide(menu)
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-- Remove items from screen
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for i = 1, #menu.items do
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item_leave(menu, i)
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menu.items[i].wibox.screen = nil
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end
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if menu.active_child then
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menu.active_child:hide()
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menu.active_child = nil
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end
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menu.sel = nil
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if cur_menu == menu then
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cur_menu = cur_menu.parent
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end
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if not cur_menu and menu.keygrabber then
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capi.keygrabber.stop()
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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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local function get_parents(menu)
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if menu.parent then
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return get_parents(menu.parent)
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end
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return menu
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end
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local function exec(menu, num, mouse_event)
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local cmd = menu.items[num].cmd
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if type(cmd) == "table" then
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if #cmd == 0 then
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return
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end
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if not menu.child[num] then
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menu.child[num] = new({ items = cmd }, menu, num)
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end
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if menu.active_child then
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menu.active_child:hide()
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menu.active_child = nil
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end
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menu.active_child = menu.child[num]
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menu.active_child:show()
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elseif type(cmd) == "string" then
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get_parents(menu):hide()
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util.spawn(cmd)
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elseif type(cmd) == "function" then
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get_parents(menu):hide()
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cmd()
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end
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end
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local function item_enter(menu, num, mouse_event)
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if menu.sel == num then
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return
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elseif menu.sel then
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item_leave(menu, menu.sel)
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end
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menu.items[num].wibox.fg = menu.theme.fg_focus
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menu.items[num].wibox.bg = menu.theme.bg_focus
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menu.sel = num
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cur_menu = menu
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if menu.auto_expand and mouse_event then
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if menu.active_child then
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menu.active_child:hide()
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menu.active_child = nil
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end
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if type(menu.items[num].cmd) == "table" then
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exec(menu, num)
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end
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end
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end
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local function grabber(mod, key, event)
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if event == "release" then
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return true
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end
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local sel = cur_menu.sel or 0
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if util.table.hasitem(menu_keys.up, key) then
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local sel_new = sel-1 < 1 and #cur_menu.items or sel-1
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item_enter(cur_menu, sel_new)
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elseif util.table.hasitem(menu_keys.down, key) then
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local sel_new = sel+1 > #cur_menu.items and 1 or sel+1
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item_enter(cur_menu, sel_new)
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elseif sel > 0 and util.table.hasitem(menu_keys.exec, key) then
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exec(cur_menu, sel)
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elseif util.table.hasitem(menu_keys.back, key) then
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cur_menu:hide()
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elseif util.table.hasitem(menu_keys.close, key) then
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get_parents(cur_menu):hide()
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end
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return true
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end
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local function add_item(data, num, item_info)
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local item = wibox({
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fg = data.theme.fg_normal,
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bg = data.theme.bg_normal,
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border_color = data.theme.border,
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border_width = data.theme.border_width
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})
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-- Create bindings
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local bindings = util.table.join(
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button({}, 1, function () item_enter(data, num); exec(data, num) end),
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button({}, 3, function () hide(data) end)
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)
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-- Create the item label widget
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local label = widget({ type = "textbox" })
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label.text = item_info[1]
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-- Set icon if needed
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local iconbox
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if item_info[3] then
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local icon = type(item_info[3]) == "string" and image(item_info[3]) or item_info[3]
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if icon.width > data.h or icon.height > data.h then
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local width, height
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if ((data.h/icon.height) * icon.width) > data.h then
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width, height = data.h, (data.h / icon.width) * icon.height
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else
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width, height = (data.h / icon.height) * icon.width, data.h
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end
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icon = icon:crop_and_scale(0, 0, icon.width, icon.height, width, height)
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end
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iconbox = widget { type = "imagebox" }
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iconbox.image = icon
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layout.margins[label] = { left = 2 }
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else
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layout.margins[label] = { left = data.h + 2 }
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end
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item:buttons(bindings)
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local mouse_enter_func = function () item_enter(data, num, true) end
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item:add_signal("mouse::enter", mouse_enter_func)
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-- Create the submenu icon widget
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local submenu
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if type(item_info[2]) == "table" then
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submenu = widget({ type = "imagebox" })
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submenu.image = data.theme.submenu_icon and image(data.theme.submenu_icon)
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submenu:buttons(bindings)
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end
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-- Add widgets to the wibox
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if iconbox then
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item.widgets = {
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iconbox,
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label,
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{ submenu, layout = layout.horizontal.rightleft },
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layout = layout.horizontal.leftright
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}
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else
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item.widgets = {
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label,
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{ submenu, layout = layout.horizontal.rightleft },
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layout = layout.horizontal.leftright
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}
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end
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item.height = label:extents().height + 2
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item.ontop = true
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return { wibox = item, cmd = item_info[2] }
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end
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--- Build a popup menu with running clients and shows it.
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-- @param menu Menu table, see new() function for more informations
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-- @return The menu.
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function clients(menu)
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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] = { util.escape(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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end,
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c.icon }
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end
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if not menu then
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menu = {}
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end
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menu.items = cls_t
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local m = new(menu)
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m:show()
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return m
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end
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local function set_coords(menu, screen_idx)
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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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local i_h = menu.h + menu.theme.border_width
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local m_h = (i_h * #menu.items) + menu.theme.border_width
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if menu.parent then
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menu.w = menu.parent.w
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menu.h = menu.parent.h
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local p_w = i_h * (menu.num - 1)
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local m_w = menu.w - menu.theme.border_width
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menu.y = menu.parent.y + p_w + m_h > screen_h and screen_h - m_h or menu.parent.y + p_w
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menu.x = menu.parent.x + m_w*2 > screen_w and menu.parent.x - m_w or menu.parent.x + m_w
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else
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local m_coords = capi.mouse.coords()
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local m_w = menu.w
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menu.y = m_coords.y+1 < s_geometry.y and s_geometry.y or m_coords.y+1
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menu.x = m_coords.x+1 < s_geometry.x and s_geometry.x or m_coords.x+1
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menu.y = menu.y + m_h > screen_h and screen_h - m_h or menu.y
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menu.x = menu.x + m_w > screen_w and screen_w - m_w or menu.x
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end
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end
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--- Show a menu.
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-- @param menu The menu to show.
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-- @param keygrabber A boolean enabling or not the keyboard navigation.
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function show(menu, keygrabber)
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local screen_index = capi.mouse.screen
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set_coords(menu, screen_index)
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for num, item in pairs(menu.items) do
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local wibox = item.wibox
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wibox.width = menu.w
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wibox.height = menu.h
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wibox.x = menu.x
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wibox.y = menu.y + (num - 1) * (menu.h + menu.theme.border_width)
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wibox.screen = screen_index
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end
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if menu.parent then
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menu.keygrabber = menu.parent.keygrabber
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elseif keygrabber ~= nil then
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menu.keygrabber = keygrabber
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else
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menu.keygrabber = false
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end
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if not cur_menu and menu.keygrabber then
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capi.keygrabber.run(grabber)
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end
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cur_menu = menu
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end
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--- Toggle menu visibility.
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-- @param menu The menu to show if it's hidden, or to hide if it's shown.
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-- @param keygrabber A boolean enabling or not the keyboard navigation.
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function toggle(menu, keygrabber)
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if menu.items[1] and menu.items[1].wibox.screen then
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hide(menu)
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else
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show(menu, keygrabber)
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end
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end
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--- Open a menu popup.
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-- @param menu Table containing the menu informations. Key items: Table containing the displayed items, each element is a tab containing: item name, tiggered action, submenu table or function, item icon (optional). Keys [fg|bg]_[focus|normal], border, border_width, submenu_icon, height and width override the default display for your menu, each of them are optional. Key auto_expand controls the submenu auto expand behaviour by setting it to true (default) or false.
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-- @param parent Specify the parent menu if we want to open a submenu, this value should never be set by the user.
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-- @param num Specify the parent's clicked item number if we want to open a submenu, this value should never be set by the user.
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function new(menu, parent, num)
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-- Create a table to store our menu informations
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local data = {}
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data.items = {}
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data.num = num or 1
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data.theme = parent and parent.theme or load_theme(menu)
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data.parent = parent
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data.child = {}
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if parent then
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data.auto_expand = parent.auto_expand
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elseif menu.auto_expand ~= nil then
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data.auto_expand = menu.auto_expand
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else
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data.auto_expand = true
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end
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data.h = parent and parent.h or data.theme.menu_height
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if type(data.h) ~= 'number' then data.h = tonumber(data.h) end
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data.w = parent and parent.w or data.theme.menu_width
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if type(data.w) ~= 'number' then data.w = tonumber(data.w) end
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-- Create items
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for k, v in pairs(menu.items) do
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table.insert(data.items, add_item(data, k, v))
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end
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if #data.items > 0 and data.h < data.items[1].wibox.height then
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data.h = data.items[1].wibox.height
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end
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-- Set methods
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data.hide = hide
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data.show = show
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data.toggle = toggle
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return data
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end
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setmetatable(_M, { __call = function(_, ...) return new(...) end })
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-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80
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