116 lines
3.9 KiB
Lua
116 lines
3.9 KiB
Lua
---------------------------------------------------------------------------
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--- Screen module for awful
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--
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-- @author Julien Danjou <julien@danjou.info>
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-- @copyright 2008 Julien Danjou
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-- @release @AWESOME_VERSION@
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-- @module awful.screen
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---------------------------------------------------------------------------
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-- Grab environment we need
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local capi =
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{
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mouse = mouse,
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screen = screen,
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client = client
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}
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local util = require("awful.util")
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-- we use require("awful.client") inside functions to prevent circular dependencies.
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local client
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local screen = {}
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local data = {}
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data.padding = {}
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---
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-- Return Xinerama screen number corresponding to the given (pixel) coordinates.
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-- The number returned can be used as an index into the global
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-- `screen` table/object.
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-- @param x The x coordinate
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-- @param y The y coordinate
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-- @param[opt] default The default return value. If unspecified, 1 is returned.
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function screen.getbycoord(x, y, default)
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for i = 1, capi.screen:count() do
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local geometry = capi.screen[i].geometry
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if((x < 0 or (x >= geometry.x and x < geometry.x + geometry.width))
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and (y < 0 or (y >= geometry.y and y < geometry.y + geometry.height))) then
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return i
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end
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end
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-- No caller expects a nil result here, so just make something up
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if default == nil then return 1 end
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return default
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end
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--- Give the focus to a screen, and move pointer.
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-- Keeps relative position of the pointer on the screen.
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-- @param _screen Screen number.
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function screen.focus(_screen)
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client = client or require("awful.client")
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if _screen > capi.screen.count() then _screen = capi.mouse.screen end
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-- screen and pos for current screen
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local s = capi.mouse.screen
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local pos = capi.mouse.coords()
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-- keep relative mouse position on the new screen
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local relx = (pos.x - capi.screen[s].geometry.x) / capi.screen[s].geometry.width
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local rely = (pos.y - capi.screen[s].geometry.y) / capi.screen[s].geometry.height
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pos.x = capi.screen[_screen].geometry.x + relx * capi.screen[_screen].geometry.width
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pos.y = capi.screen[_screen].geometry.y + rely * capi.screen[_screen].geometry.height
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-- move cursor without triggering signals mouse::enter and mouse::leave
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capi.mouse.coords(pos, true)
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local c = client.focus.history.get(_screen, 0)
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if c then
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c:emit_signal("request::activate", "screen.focus", false)
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end
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end
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--- Give the focus to a screen, and move pointer, by physical position relative to current screen.
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-- @param dir The direction, can be either "up", "down", "left" or "right".
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-- @param _screen Screen number.
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function screen.focus_bydirection(dir, _screen)
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local sel = _screen or capi.mouse.screen
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if sel then
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local geomtbl = {}
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for s = 1, capi.screen.count() do
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geomtbl[s] = capi.screen[s].geometry
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end
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local target = util.get_rectangle_in_direction(dir, geomtbl, capi.screen[sel].geometry)
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if target then
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return screen.focus(target)
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end
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end
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end
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--- Give the focus to a screen, and move pointer, but relative to the current
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-- focused screen.
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-- @param i Value to add to the current focused screen index. 1 will focus next
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-- screen, -1 would focus the previous one.
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function screen.focus_relative(i)
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return screen.focus(util.cycle(capi.screen.count(), capi.mouse.screen + i))
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end
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--- Get or set the screen padding.
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-- @param _screen The screen object to change the padding on
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-- @param padding The padding, an table with 'top', 'left', 'right' and/or
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-- 'bottom'. Can be nil if you only want to retrieve padding
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function screen.padding(_screen, padding)
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if padding then
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data.padding[_screen] = padding
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_screen:emit_signal("padding")
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end
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return data.padding[_screen]
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end
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capi.screen.add_signal("padding")
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return screen
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-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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