Module: `wibox.widget.systray`

Container for the various system tray icons.

Class Hierarchy

gears.object
- wibox.widget.base
- - wibox.widget.systray

Info:

Copyright: 2010 Uli Schlachter
Originally authored by: Uli Schlachter
(Full contributors list available on our github project)

Constructors

wibox.widget.systray (reverse)

Create the systray widget.

Object properties

base_size	integer or nil	Set the size of a single icon.
horizontal	boolean	Decide between horizontal or vertical display.
reverse	boolean	Should the systray icons be displayed in reverse order?
screen	screen or nil	Set the screen that the systray should be displayed on.
children	table	Get or set the children elements.	Inherited from wibox.widget.base
all_children	table	Get all direct and indirect children widgets.	Inherited from wibox.widget.base
forced_height	number or nil	Force a widget height.	Inherited from wibox.widget.base
forced_width	number or nil	Force a widget width.	Inherited from wibox.widget.base
opacity	number	The widget opacity (transparency).	Inherited from wibox.widget.base
visible	boolean	The widget visibility.	Inherited from wibox.widget.base
buttons	table	The widget buttons.	Inherited from wibox.widget.base

Theme variables

beautiful.bg_systray	string	The systray background color.
beautiful.systray_max_rows	integer	The maximum number of rows for systray icons.
beautiful.systray_icon_spacing	integer	The systray icon spacing.

Object methods

:add_button (button)	Add a new awful.button to this widget.	Inherited from wibox.widget.base
:emit_signal_recursive (signal_name, ...)	Emit a signal and ensure all parent widgets in the hierarchies also forward the signal.	Inherited from wibox.widget.base
:index (widget, recursive, ...) -> (number, widget, table)	Get the index of a widget.	Inherited from wibox.widget.base
:connect_signal (name, func)	Connect to a signal.	Inherited from gears.object
:weak_connect_signal (name, func)	Connect to a signal weakly.	Inherited from gears.object
:disconnect_signal (name, func)	Disonnect from a signal.	Inherited from gears.object
:emit_signal (name, ...)	Emit a signal.	Inherited from gears.object

Signals

widget::layout_changed	When the layout (size) change.	Inherited from wibox.widget.base
widget::redraw_needed	When the widget content changed.	Inherited from wibox.widget.base
button::press	When a mouse button is pressed over the widget.	Inherited from wibox.widget.base
button::release	When a mouse button is released over the widget.	Inherited from wibox.widget.base
mouse::enter	When the mouse enter a widget.	Inherited from wibox.widget.base
mouse::leave	When the mouse leave a widget.	Inherited from wibox.widget.base

Constructors

🔗 wibox.widget.systray (reverse) · 3 theme variables

Create the systray widget.

Note that this widget can only exist once.

Parameters:

Name		Type(s)	Description
reverse		boolean	Show in the opposite direction

Returns:

table

systray

Click to display more

Consumed theme variables:

Theme variable	Usage
beautiful.bg_systray
beautiful.systray_icon_spacing
beautiful.systray_max_rows

Object properties

🔗 base_size integer or nil · 1 signal

Set the size of a single icon.

If this is set to nil, then the size is picked dynamically based on the available space. Otherwise, any single icon has a size of sizexsize.

Constraints:

Default value	: `nil`
Type description:
integer	: The size.
nil	: Select the size based on the availible space.
Unit	: pixel
Negative allowed	: false

Click to display more

Emit signals:

property::base_size When the base_size value changes.

self wibox.widget.systray The object which changed (useful when connecting many object to the same callback).
new_value base_size The new value affected to the property.

🔗 horizontal boolean · 1 signal

Decide between horizontal or vertical display.

Constraints:

Default value	: `true`
Valid values	: `true` or `false`.

Click to display more

Emit signals:

property::horizontal When the horizontal value changes.

self wibox.widget.systray The object which changed (useful when connecting many object to the same callback).
new_value horizontal The new value affected to the property.

🔗 reverse boolean · 1 signal

Should the systray icons be displayed in reverse order?

Constraints:

Default value	: `false`
Valid values	: `true` or `false`.

Click to display more

Emit signals:

property::reverse When the reverse value changes.

self wibox.widget.systray The object which changed (useful when connecting many object to the same callback).
new_value reverse The new value affected to the property.

🔗 screen screen or nil · 1 signal

Set the screen that the systray should be displayed on.

This can either be a screen, in which case the systray will be displayed on exactly that screen, or the string "primary", in which case it will be visible on the primary screen. The default value is "primary".

Constraints:

Default value	: `nil`
Type description:
nil	: Valid as long as the `systray` widget is only being displayed on a single screen.
screen	: A valid screen object such as retured by `awful.screen.focused()` or mouse.screen.
integer	: A screen global id. Avoid using this since they are unsorted.
string	: The `"primary"` value is also valid.

Click to display more

Emit signals:

property::screen When the screen value changes.

self wibox.widget.systray The object which changed (useful when connecting many object to the same callback).
new_value screen The new value affected to the property.

🔗 children table · Inherited from wibox.widget.base

Get or set the children elements.

Constraints:

Default value	: `{}`
Table content	: A list of wibox.widget.

Constraints:

Default value	: `{}`
Table content	: A list of wibox.widget.

Constraints:

Default value	: `nil`
Type description:
nil	: Let the layout decide the height. Usually using the widget native height.
number	: Enforce a number of pixels.
Unit	: pixel
Negative allowed	: false

Constraints:

Default value	: `nil`
Type description:
nil	: Let the layout decide the width. Usually using the widget native width.
number	: Enforce a number of pixels.
Unit	: pixel
Negative allowed	: false

Constraints:

Default value	: `1.0`
Unit	: A gradient between transparent (`0.0`) and opaque (`1.0`).
Minimum value	: 0.0
Maximum value	: 1.0

Constraints:

Default value	: `true`
Valid values	: `true` or `false`.

Constraints:

Default value	: `{}`
Table content	: A list of awful.button.

Theme variables

🔗 beautiful.bg_systray string

The systray background color.

Please note that only solid+opaque colors are supported. It does not support gradients, patterns or transparent colors.

Type constraints:

Name		Type(s)	Description
bg_systray		string	The color (string like "#ff0000" only)

Click to display more

Used by:

wibox.widget.systray Create the systray widget.

🔗 beautiful.systray_max_rows integer

The maximum number of rows for systray icons. Icons will fill the current column (orthogonally to the systray direction) before filling the next column.

Type constraints:

Name		Type(s)	Description	Default value
systray_max_rows	Optional	integer	The positive number of rows.	`1`

Click to display more

Used by:

wibox.widget.systray Create the systray widget.

🔗 beautiful.systray_icon_spacing integer

The systray icon spacing.

Type constraints:

Name		Type(s)	Description	Default value
systray_icon_spacing	Optional	integer	The icon spacing	`0`

Click to display more

Used by:

wibox.widget.systray Create the systray widget.

Object methods

🔗 :add_button (button) · Inherited from wibox.widget.base

Add a new awful.button to this widget.

Parameters:

Name		Type(s)	Description
button		awful.button	The button to add.

🔗 :emit_signal_recursive (signal_name, ...) · Inherited from wibox.widget.base

Emit a signal and ensure all parent widgets in the hierarchies also forward the signal.

This is useful to track signals when there is a dynamic set of containers and layouts wrapping the widget.

Note that this function has some flaws:

The signal is only forwarded once the widget tree has been built. This happens after all currently scheduled functions have been executed. Therefore, it will not start to work right away.
In case the widget is present multiple times in a single widget tree, this function will also forward the signal multiple times (once per upward tree path).
If the widget is removed from the widget tree, the signal is still forwarded for some time, similar to the first case.

Parameters:

Name		Type(s)	Description
signal_name		string
...			Other arguments

🔗 :index (widget, recursive, ...) -> (number, widget, table) · Inherited from wibox.widget.base

Get the index of a widget.

Parameters:

Name		Type(s)	Description
widget		widget	The widget to look for.
recursive	Optional	boolean	Recursively check accross the sub-widgets hierarchy.
...	Optional	widget	Additional widgets to add at the end of the sub-widgets hierarchy "path".

Returns:

number The widget index.
widget The parent widget.
table The hierarchy path between "self" and "widget".

🔗 :connect_signal (name, func) · Inherited from gears.object

Connect to a signal.

Usage example output:

In slot [obj]   nil nil nil
In slot [obj]   foo bar 42

Parameters:

Name		Type(s)	Description
name		string	The name of the signal.
func		function	The callback to call when the signal is emitted.

Usage:

local o = gears.object{}
-- Function can be attached to signals
local function slot(obj, a, b, c)
    print("In slot", obj, a, b, c)
end
o:connect_signal("my_signal", slot)
-- Emitting can be done without arguments. In that case, the object will be
-- implicitly added as an argument.
o:emit_signal "my_signal"
-- It is also possible to add as many random arguments are required.
o:emit_signal("my_signal", "foo", "bar", 42)
-- Finally, to allow the object to be garbage collected (the memory freed), it
-- is necessary to disconnect the signal or use weak_connect_signal
o:disconnect_signal("my_signal", slot)
-- This time, the slot wont be called as it is no longer connected.
o:emit_signal "my_signal"

🔗 :weak_connect_signal (name, func) · Inherited from gears.object

Connect to a signal weakly.

This allows the callback function to be garbage collected and automatically disconnects the signal when that happens. Warning: Only use this function if you really, really, really know what you are doing.

Parameters:

Name		Type(s)	Description
name		string	The name of the signal.
func		function	The callback to call when the signal is emitted.

🔗 :disconnect_signal (name, func) · Inherited from gears.object

Disonnect from a signal.

Parameters:

Name		Type(s)	Description
name		string	The name of the signal.
func		function	The callback that should be disconnected.

🔗 :emit_signal (name, ...) · Inherited from gears.object

Emit a signal.

Parameters:

Name		Type(s)	Description
name		string	The name of the signal
...			Extra arguments for the callback functions. Each connected function receives the object as first argument and then any extra arguments that are given to emit_signal()

Signals

🔗 widget::layout_changed · Inherited from wibox.widget.base

When the layout (size) change. This signal is emitted when the previous results of :layout() and :fit() are no longer valid. Unless this signal is emitted, :layout() and :fit() must return the same result when called with the same arguments.

Arguments:

Name	Type(s)	Description
self	table	The current object instance itself.
lx	number	The horizontal position relative to the (0,0) position in the widget.
ly	number	The vertical position relative to the (0,0) position in the widget.
button	number	The button number.
mods	table	The modifiers (mod4, mod1 (alt), Control, Shift)
find_widgets_result	table	The entry from the result of wibox:find_widgets for the position that the mouse hit.
drawable	wibox.drawable	The drawable containing the widget.
widget	widget	The widget being displayed.
hierarchy	wibox.hierarchy	The hierarchy managing the widget's geometry.
x	number	An approximation of the X position that the widget is visible at on the surface.
y	number	An approximation of the Y position that the widget is visible at on the surface.
width	number	An approximation of the width that the widget is visible at on the surface.
height	number	An approximation of the height that the widget is visible at on the surface.
widget_width	number	The exact width of the widget in its local coordinate system.
widget_height	number	The exact height of the widget in its local coordinate system.

Arguments:

Name	Type(s)	Description
self	table	The current object instance itself.
lx	number	The horizontal position relative to the (0,0) position in the widget.
ly	number	The vertical position relative to the (0,0) position in the widget.
button	number	The button number.
mods	table	The modifiers (mod4, mod1 (alt), Control, Shift)
find_widgets_result	table	The entry from the result of wibox:find_widgets for the position that the mouse hit.
drawable	wibox.drawable	The drawable containing the widget.
widget	widget	The widget being displayed.
hierarchy	wibox.hierarchy	The hierarchy managing the widget's geometry.
x	number	An approximation of the X position that the widget is visible at on the surface.
y	number	An approximation of the Y position that the widget is visible at on the surface.
width	number	An approximation of the width that the widget is visible at on the surface.
height	number	An approximation of the height that the widget is visible at on the surface.
widget_width	number	The exact width of the widget in its local coordinate system.
widget_height	number	The exact height of the widget in its local coordinate system.

Arguments:

Name	Type(s)	Description
self	table	The current object instance itself.
find_widgets_result	table	The entry from the result of wibox:find_widgets for the position that the mouse hit.
drawable	wibox.drawable	The drawable containing the widget.
widget	widget	The widget being displayed.
hierarchy	wibox.hierarchy	The hierarchy managing the widget's geometry.
x	number	An approximation of the X position that the widget is visible at on the surface.
y	number	An approximation of the Y position that the widget is visible at on the surface.
width	number	An approximation of the width that the widget is visible at on the surface.
height	number	An approximation of the height that the widget is visible at on the surface.
widget_width	number	The exact width of the widget in its local coordinate system.
widget_height	number	The exact height of the widget in its local coordinate system.

Arguments:

Name	Type(s)	Description
self	table	The current object instance itself.
find_widgets_result	table	The entry from the result of wibox:find_widgets for the position that the mouse hit.
drawable	wibox.drawable	The drawable containing the widget.
widget	widget	The widget being displayed.
hierarchy	wibox.hierarchy	The hierarchy managing the widget's geometry.
x	number	An approximation of the X position that the widget is visible at on the surface.
y	number	An approximation of the Y position that the widget is visible at on the surface.
width	number	An approximation of the width that the widget is visible at on the surface.
height	number	An approximation of the height that the widget is visible at on the surface.
widget_width	number	The exact width of the widget in its local coordinate system.
widget_height	number	The exact height of the widget in its local coordinate system.

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Documentation

Module: wibox.widget.systray

Class Hierarchy

Info:

Constructors

Object properties

Theme variables

Object methods

Signals

Constructors

Parameters:

Returns:

Consumed theme variables:

Object properties

Constraints:

Emit signals:

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Module: `wibox.widget.systray`