316 lines
11 KiB
Lua
316 lines
11 KiB
Lua
---------------------------------------------------------------------------
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--- Titlebars for awful.
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--
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-- @author Uli Schlachter
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-- @copyright 2012 Uli Schlachter
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-- @release @AWESOME_VERSION@
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-- @module awful.titlebar
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---------------------------------------------------------------------------
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local error = error
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local type = type
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local util = require("awful.util")
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local abutton = require("awful.button")
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local aclient = require("awful.client")
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local atooltip = require("awful.tooltip")
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local beautiful = require("beautiful")
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local object = require("gears.object")
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local drawable = require("wibox.drawable")
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local base = require("wibox.widget.base")
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local imagebox = require("wibox.widget.imagebox")
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local textbox = require("wibox.widget.textbox")
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local capi = {
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client = client
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}
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local titlebar = {
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widget = {}
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}
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--- Set a declarative widget hierarchy description.
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-- See [The declarative layout system](../documentation/03-declarative-layout.md.html)
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-- @param args An array containing the widgets disposition
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-- @name setup
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-- @class function
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--- Show tooltips when hover on titlebar buttons (defaults to 'true')
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titlebar.enable_tooltip = true
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local all_titlebars = setmetatable({}, { __mode = 'k' })
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-- Get a color for a titlebar, this tests many values from the array and the theme
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local function get_color(name, c, args)
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local suffix = "_normal"
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if capi.client.focus == c then
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suffix = "_focus"
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end
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local function get(array)
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return array["titlebar_"..name..suffix] or array["titlebar_"..name] or array[name..suffix] or array[name]
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end
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return get(args) or get(beautiful)
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end
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local function get_titlebar_function(c, position)
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if position == "left" then
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return c.titlebar_left
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elseif position == "right" then
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return c.titlebar_right
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elseif position == "top" then
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return c.titlebar_top
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elseif position == "bottom" then
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return c.titlebar_bottom
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else
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error("Invalid titlebar position '" .. position .. "'")
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end
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end
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--- Get a client's titlebar
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-- @class function
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-- @param c The client for which a titlebar is wanted.
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-- @param[opt] args A table with extra arguments for the titlebar. The
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-- "size" is the height of the titlebar. Available "position" values are top,
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-- left, right and bottom. Additionally, the foreground and background colors
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-- can be configured via e.g. "bg_normal" and "bg_focus".
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-- @name titlebar
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local function new(c, args)
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local args = args or {}
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local position = args.position or "top"
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local size = args.size or util.round(beautiful.get_font_height(args.font) * 1.5)
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local d = get_titlebar_function(c, position)(c, size)
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-- Make sure that there is never more than one titlebar for any given client
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local bars = all_titlebars[c]
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if not bars then
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bars = {}
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all_titlebars[c] = bars
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end
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local ret
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if not bars[position] then
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local context = {
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client = c,
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position = position
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}
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ret = drawable(d, context, "awful.titlebar")
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local function update_colors()
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local args = bars[position].args
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ret:set_bg(get_color("bg", c, args))
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ret:set_fg(get_color("fg", c, args))
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ret:set_bgimage(get_color("bgimage", c, args))
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end
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bars[position] = {
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args = args,
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drawable = ret,
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update_colors = update_colors
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}
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-- Update the colors when focus changes
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c:connect_signal("focus", update_colors)
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c:connect_signal("unfocus", update_colors)
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else
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bars[position].args = args
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ret = bars[position].drawable
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end
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-- Make sure the titlebar has the right colors applied
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bars[position].update_colors()
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-- Handle declarative/recursive widget container
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ret.setup = base.widget.setup
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return ret
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end
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--- Show a client's titlebar.
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-- @param c The client whose titlebar is modified
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-- @param[opt] position The position of the titlebar. Must be one of "left",
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-- "right", "top", "bottom". Default is "top".
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function titlebar.show(c, position)
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local position = position or "top"
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local bars = all_titlebars[c]
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local data = bars and bars[position]
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local args = data and data.args
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new(c, args)
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end
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--- Hide a client's titlebar.
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-- @param c The client whose titlebar is modified
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-- @param[opt] position The position of the titlebar. Must be one of "left",
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-- "right", "top", "bottom". Default is "top".
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function titlebar.hide(c, position)
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local position = position or "top"
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get_titlebar_function(c, position)(c, 0)
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end
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--- Toggle a client's titlebar, hiding it if it is visible, otherwise showing it.
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-- @param c The client whose titlebar is modified
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-- @param[opt] position The position of the titlebar. Must be one of "left",
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-- "right", "top", "bottom". Default is "top".
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function titlebar.toggle(c, position)
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local position = position or "top"
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local drawable, size = get_titlebar_function(c, position)(c)
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if size == 0 then
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titlebar.show(c, position)
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else
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titlebar.hide(c, position)
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end
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end
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--- Create a new titlewidget. A title widget displays the name of a client.
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-- Please note that this returns a textbox and all of textbox' API is available.
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-- This way, you can e.g. modify the font that is used.
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-- @param c The client for which a titlewidget should be created.
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-- @return The title widget.
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function titlebar.widget.titlewidget(c)
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local ret = textbox()
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local function update()
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ret:set_text(c.name or "<unknown>")
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end
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c:connect_signal("property::name", update)
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update()
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return ret
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end
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--- Create a new icon widget. An icon widget displays the icon of a client.
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-- Please note that this returns an imagebox and all of the imagebox' API is
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-- available. This way, you can e.g. disallow resizes.
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-- @param c The client for which an icon widget should be created.
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-- @return The icon widget.
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function titlebar.widget.iconwidget(c)
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local ret = imagebox()
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local function update()
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ret:set_image(c.icon)
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end
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c:connect_signal("property::icon", update)
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update()
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return ret
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end
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--- Create a new button widget. A button widget displays an image and reacts to
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-- mouse clicks. Please note that the caller has to make sure that this widget
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-- gets redrawn when needed by calling the returned widget's update() function.
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-- The selector function should return a value describing a state. If the value
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-- is a boolean, either "active" or "inactive" are used. The actual image is
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-- then found in the theme as "titlebar_[name]_button_[normal/focus]_[state]".
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-- If that value does not exist, the focused state is ignored for the next try.
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-- @param c The client for which a button is created.
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-- @tparam string name Name of the button, used for accessing the theme and
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-- in the tooltip.
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-- @param selector A function that selects the image that should be displayed.
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-- @param action Function that is called when the button is clicked.
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-- @return The widget
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function titlebar.widget.button(c, name, selector, action)
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local ret = imagebox()
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if titlebar.enable_tooltip then
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ret.tooltip = atooltip({ objects = {ret}, delay_show = 1 })
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ret.tooltip:set_text(name)
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end
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local function update()
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local img = selector(c)
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if type(img) ~= "nil" then
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-- Convert booleans automatically
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if type(img) == "boolean" then
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if img then
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img = "active"
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else
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img = "inactive"
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end
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end
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-- First try with a prefix based on the client's focus state
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local prefix = "normal"
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if capi.client.focus == c then
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prefix = "focus"
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end
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if img ~= "" then
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prefix = prefix .. "_"
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end
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local theme = beautiful["titlebar_" .. name .. "_button_" .. prefix .. img]
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if not theme then
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-- Then try again without that prefix if nothing was found
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theme = beautiful["titlebar_" .. name .. "_button_" .. img]
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end
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if theme then
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img = theme
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end
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end
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ret:set_image(img)
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end
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if action then
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ret:buttons(abutton({ }, 1, nil, function() action(c, selector(c)) end))
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end
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ret.update = update
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update()
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-- We do magic based on whether a client is focused above, so we need to
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-- connect to the corresponding signal here.
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c:connect_signal("focus", update)
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c:connect_signal("unfocus", update)
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return ret
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end
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--- Create a new float button for a client.
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-- @param c The client for which the button is wanted.
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function titlebar.widget.floatingbutton(c)
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local widget = titlebar.widget.button(c, "floating", aclient.floating.get, aclient.floating.toggle)
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c:connect_signal("property::floating", widget.update)
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return widget
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end
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--- Create a new maximize button for a client.
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-- @param c The client for which the button is wanted.
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function titlebar.widget.maximizedbutton(c)
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local widget = titlebar.widget.button(c, "maximized", function(c)
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return c.maximized_horizontal or c.maximized_vertical
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end, function(c, state)
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c.maximized_horizontal = not state
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c.maximized_vertical = not state
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end)
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c:connect_signal("property::maximized_vertical", widget.update)
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c:connect_signal("property::maximized_horizontal", widget.update)
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return widget
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end
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--- Create a new minimize button for a client.
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-- @param c The client for which the button is wanted.
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function titlebar.widget.minimizebutton(c)
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local widget = titlebar.widget.button(c, "minimize", function() return c.minimized end, function(c) c.minimized = not c.minimized end)
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c:connect_signal("property::minimized", widget.update)
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return widget
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end
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--- Create a new closing button for a client.
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-- @param c The client for which the button is wanted.
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function titlebar.widget.closebutton(c)
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return titlebar.widget.button(c, "close", function() return "" end, function(c) c:kill() end)
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end
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--- Create a new ontop button for a client.
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-- @param c The client for which the button is wanted.
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function titlebar.widget.ontopbutton(c)
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local widget = titlebar.widget.button(c, "ontop", function(c) return c.ontop end, function(c, state) c.ontop = not state end)
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c:connect_signal("property::ontop", widget.update)
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return widget
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end
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--- Create a new sticky button for a client.
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-- @param c The client for which the button is wanted.
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function titlebar.widget.stickybutton(c)
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local widget = titlebar.widget.button(c, "sticky", function(c) return c.sticky end, function(c, state) c.sticky = not state end)
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c:connect_signal("property::sticky", widget.update)
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return widget
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end
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client.connect_signal("unmanage", function(c)
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all_titlebars[c] = nil
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end)
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return setmetatable(titlebar, { __call = function(_, ...) return new(...) end})
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-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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