410 lines
12 KiB
Lua
410 lines
12 KiB
Lua
---------------------------------------------------------------------------
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--- Mouse 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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-- @module mouse
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---------------------------------------------------------------------------
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-- Grab environment we need
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local floating = require("awful.layout.suit.floating")
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local aplace = require("awful.placement")
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local gdebug = require("gears.debug")
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local type = type
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local ipairs = ipairs
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local capi =
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{
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root = root,
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mouse = mouse,
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screen = screen,
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client = client,
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mousegrabber = mousegrabber,
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}
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local mouse = {
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snap = require("awful.mouse.snap"),
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client = require("awful.mouse.client"),
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resize = require("awful.mouse.resize"),
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drag_to_tag = require("awful.mouse.drag_to_tag")
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}
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mouse.object = {}
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mouse.wibox = {}
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--- The default distance before snapping clients together.
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--
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-- @DOC_screen_client_snap_EXAMPLE@
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--
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-- @tfield integer snap.default_distance
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-- @tparam[opt=8] integer default_distance
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-- @see awful.mouse.snap
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--- The default distance before activating screen edge snap.
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-- @tfield integer snap.aerosnap_distance
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-- @tparam[opt=16] integer aerosnap_distance
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-- @see awful.mouse.snap
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--- Enable screen edges snapping.
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--
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--@DOC_awful_placement_aero_snap_EXAMPLE@
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--
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-- @tfield[opt=true] boolean snap.edge_enabled
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-- @tparam boolean edge_enabled
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--- Enable client to client snapping.
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-- @tfield[opt=true] boolean snap.client_enabled
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-- @tparam boolean client_enabled
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--- Enable changing tag when a client is dragged to the edge of the screen.
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-- @tfield[opt=false] boolean drag_to_tag.enabled
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-- @tparam boolean enabled
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--- The snap outline background color.
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-- @beautiful beautiful.snap_bg
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-- @tparam color|string|gradient|pattern color
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--- The snap outline width.
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-- @beautiful beautiful.snap_border_width
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-- @param integer
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--- The snap outline shape.
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-- @beautiful beautiful.snap_shape
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-- @tparam function shape A `gears.shape` compatible function
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--- The gap between snapped clients.
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-- @beautiful beautiful.snapper_gap
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-- @tparam[opt=0] number snapper_gap
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--- Get the client object under the pointer.
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-- @deprecated awful.mouse.client_under_pointer
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-- @return The client object under the pointer, if one can be found.
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-- @see current_client
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function mouse.client_under_pointer()
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gdebug.deprecate("Use mouse.current_client instead of awful.mouse.client_under_pointer()", {deprecated_in=4})
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return mouse.object.get_current_client()
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end
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-- Older layouts implement their own mousegrabber.
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-- @tparam client c The client
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-- @tparam table args Additional arguments
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-- @treturn boolean This return false when the resize need to be aborted
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mouse.resize.add_enter_callback(function(c, args) --luacheck: no unused args
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if c.floating then return end
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local l = c.screen.selected_tag and c.screen.selected_tag.layout or nil
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if l == floating then return end
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if l.mouse_resize_handler then
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capi.mousegrabber.stop()
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local geo, corner = aplace.closest_corner(capi.mouse, {parent=c})
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l.mouse_resize_handler(c, corner, geo.x, geo.y)
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return false
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end
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end, "mouse.resize")
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--- Get the client currently under the mouse cursor.
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-- @property current_client
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-- @tparam client|nil The client
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function mouse.object.get_current_client()
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local obj = capi.mouse.object_under_pointer()
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if type(obj) == "client" then
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return obj
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end
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end
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--- Get the wibox currently under the mouse cursor.
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-- @property current_wibox
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-- @tparam wibox|nil The wibox
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function mouse.object.get_current_wibox()
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local obj = capi.mouse.object_under_pointer()
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if type(obj) == "drawin" and obj.get_wibox then
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return obj:get_wibox()
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end
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end
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--- Get the widgets currently under the mouse cursor.
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--
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-- @property current_widgets
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-- @tparam nil|table list The widget list
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-- @treturn table The list of widgets.The first element is the biggest
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-- container while the last is the topmost widget. The table contains *x*, *y*,
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-- *width*, *height* and *widget*.
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function mouse.object.get_current_widgets()
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local w = mouse.object.get_current_wibox()
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if w then
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local geo, coords = w:geometry(), capi.mouse:coords()
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local bw = w.border_width
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local list = w:find_widgets(coords.x - geo.x - bw, coords.y - geo.y - bw)
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local ret = {}
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for k, v in ipairs(list) do
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ret[k] = v.widget
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end
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return ret, list
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end
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end
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--- Get the topmost widget currently under the mouse cursor.
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-- @property current_widget
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-- @tparam widget|nil widget The widget
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-- @treturn ?widget The widget
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-- @see current_widget_geometry
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function mouse.object.get_current_widget()
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local wdgs, geos = mouse.object.get_current_widgets()
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if wdgs then
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return wdgs[#wdgs], geos[#geos]
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end
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end
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--- Get the current widget geometry.
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-- @property current_widget_geometry
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-- @tparam ?table The geometry.
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-- @see current_widget
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function mouse.object.get_current_widget_geometry()
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local _, ret = mouse.object.get_current_widget()
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return ret
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end
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--- Get the current widget geometries.
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-- @property current_widget_geometries
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-- @tparam ?table A list of geometry tables.
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-- @see current_widgets
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function mouse.object.get_current_widget_geometries()
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local _, ret = mouse.object.get_current_widgets()
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return ret
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end
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--- Move the wibox under the cursor.
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-- @staticfct awful.mouse.wibox.move
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-- @tparam wibox w The wibox to move, or none to use that under the pointer
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-- @request wibox geometry mouse.move granted Requests to move the wibox.
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function mouse.wibox.move(w)
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w = w or mouse.current_wibox
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if not w then return end
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if not w
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or w.type == "desktop"
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or w.type == "splash"
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or w.type == "dock" then
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return
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end
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-- Compute the offset
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local coords = capi.mouse.coords()
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local geo = aplace.centered(capi.mouse,{parent=w, pretend=true})
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local offset = {
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x = geo.x - coords.x,
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y = geo.y - coords.y,
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}
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mouse.resize(w, "mouse.move", {
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placement = aplace.under_mouse,
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offset = offset
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})
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end
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--- True if the left mouse button is pressed.
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-- @property is_left_mouse_button_pressed
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-- @param boolean
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--- True if the right mouse button is pressed.
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-- @property is_right_mouse_button_pressed
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-- @param boolean
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--- True if the middle mouse button is pressed.
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-- @property is_middle_mouse_button_pressed
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-- @param boolean
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--- Add an `awful.button` based mousebinding to the global set.
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--
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-- A **global** mousebinding is one which is always present, even when there is
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-- no focused client. If your intent is too add a mousebinding which acts on
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-- the focused client do **not** use this.
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--
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-- @staticfct awful.mouse.append_global_mousebinding
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-- @tparam awful.button button The button object.
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-- @see awful.button
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function mouse.append_global_mousebinding(button)
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capi.root._append_button(button)
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end
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--- Add multiple `awful.button` based mousebindings to the global set.
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--
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-- A **global** mousebinding is one which is always present, even when there is
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-- no focused client. If your intent is too add a mousebinding which acts on
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-- the focused client do **not** use this
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--
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-- @tparam table buttons A table of `awful.button` objects. Optionally, it can have
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-- a `group` entry. If set, the `group` property will be set on all `awful.buttons`
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-- objects.
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-- @see awful.button
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function mouse.append_global_mousebindings(buttons)
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local g = buttons.group
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buttons.group = nil
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-- Avoid the boilerplate. If the user is adding multiple buttons at once, then
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-- they are probably related.
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if g then
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for _, k in ipairs(buttons) do
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k.group = g
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end
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end
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capi.root._append_buttons(buttons)
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buttons.group = g
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end
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--- Remove a mousebinding from the global set.
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--
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-- @staticfct awful.mouse.remove_global_mousebinding
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-- @tparam awful.button button The button object.
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-- @see awful.button
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function mouse.remove_global_mousebinding(button)
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capi.root._remove_button(button)
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end
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local default_buttons = {}
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--- Add an `awful.button` to the default client buttons.
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--
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-- @staticfct awful.mouse.append_client_mousebinding
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-- @tparam awful.button button The button.
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-- @emits client_mousebinding::added
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-- @emitstparam client_mousebinding::added awful.button button The button.
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-- @see awful.button
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-- @see awful.keyboard.append_client_keybinding
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function mouse.append_client_mousebinding(button)
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table.insert(default_buttons, button)
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for _, c in ipairs(capi.client.get(nil, false)) do
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c:append_mousebinding(button)
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end
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capi.client.emit_signal("client_mousebinding::added", button)
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end
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--- Add a `awful.button`s to the default client buttons.
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--
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-- @staticfct awful.mouse.append_client_mousebindings
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-- @tparam table buttons A table containing `awful.button` objects.
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-- @see awful.button
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-- @see awful.keyboard.append_client_keybinding
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-- @see awful.mouse.append_client_mousebinding
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-- @see awful.keyboard.append_client_keybindings
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function mouse.append_client_mousebindings(buttons)
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for _, button in ipairs(buttons) do
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mouse.append_client_mousebinding(button)
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end
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end
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--- Remove a mousebinding from the default client buttons.
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--
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-- @staticfct awful.mouse.remove_client_mousebinding
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-- @tparam awful.button button The button.
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-- @treturn boolean True if the button was removed and false if it wasn't found.
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-- @see awful.keyboard.append_client_keybinding
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function mouse.remove_client_mousebinding(button)
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for k, v in ipairs(default_buttons) do
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if button == v then
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table.remove(default_buttons, k)
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for _, c in ipairs(capi.client.get(nil, false)) do
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c:remove_mousebinding(button)
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end
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return true
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end
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end
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return false
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end
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for k, b in ipairs {"left", "middle", "right"} do
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mouse.object["is_".. b .."_mouse_button_pressed"] = function()
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return capi.mouse.coords().buttons[k]
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end
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end
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-- Set the cursor at startup
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capi.root.cursor("left_ptr")
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-- Implement the custom property handler
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local props = {}
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capi.mouse.set_newindex_miss_handler(function(_,key,value)
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if mouse.object["set_"..key] then
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mouse.object["set_"..key](value)
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elseif not mouse.object["get_"..key] then
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props[key] = value
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else
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-- If there is a getter, but no setter, then the property is read-only
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error("Cannot set '" .. tostring(key) .. " because it is read-only")
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end
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end)
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capi.mouse.set_index_miss_handler(function(_,key)
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if mouse.object["get_"..key] then
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return mouse.object["get_"..key]()
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elseif mouse.object[key] and key:sub(1, 3) == "is_" then
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return mouse.object[key]()
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elseif mouse.object[key] then
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return mouse.object[key]
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else
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return props[key]
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end
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end)
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--- Get or set the mouse coords.
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--
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--@DOC_awful_mouse_coords_EXAMPLE@
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--
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-- @tparam[opt=nil] table coords_table None or a table with x and y keys as mouse
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-- coordinates.
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-- @tparam[opt=nil] integer coords_table.x The mouse horizontal position
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-- @tparam[opt=nil] integer coords_table.y The mouse vertical position
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-- @tparam[opt=false] boolean silent Disable mouse::enter or mouse::leave events that
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-- could be triggered by the pointer when moving.
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-- @treturn integer table.x The horizontal position
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-- @treturn integer table.y The vertical position
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-- @treturn table table.buttons Table containing the status of buttons, e.g. field [1] is true
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-- when button 1 is pressed.
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-- @staticfct mouse.coords
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capi.client.connect_signal("scanning", function()
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capi.client.emit_signal("request::default_mousebindings", "startup")
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end)
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-- Private function to be used by `ruled.client`.
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function mouse._get_client_mousebindings()
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return default_buttons
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end
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mouse.resize_handler = mouse.resize._resize_handler
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return mouse
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-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
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