Module: wibox.widget.systray

Class Hierarchy

Info:

  • Copyright: 2010 Uli Schlachter
  • Author: Uli Schlachter

Constructors

wibox.widget.systray (revers) 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 "primary" 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_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 (revers)
Create the systray widget.

Note that this widget can only exist once.

Parameters:

  • revers boolean Show in the opposite direction

Returns:

    table The new systray widget

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.

Type constraints:

  • size integer or nil The base size

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 size The new value affected to the property.
horizontal boolean · 1 signal
Decide between horizontal or vertical display.

Type constraints:

  • horiz boolean Use horizontal mode?

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 horiz The new value affected to the property.
reverse boolean · 1 signal
Should the systray icons be displayed in reverse order?

Type constraints:

  • rev boolean Display in reverse order.

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 rev The new value affected to the property.
screen screen or "primary" · 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".

Type constraints:

  • s screen or "primary" The screen to display on.

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 s The new value affected to the property.
children table · Inherited from wibox.widget.base
Get or set the children elements.

Type constraints:

  • children table The children.
all_children table · Inherited from wibox.widget.base
Get all direct and indirect children widgets. This will scan all containers recursively to find widgets Warning: This method it prone to stack overflow if there is a loop in the widgets hierarchy. A hierarchy loop is when a widget, or any of its children, contain (directly or indirectly) itself.

Type constraints:

  • children table The children.
forced_height number or nil · Inherited from wibox.widget.base
Force a widget height.

Type constraints:

  • height number or nil The height (nil for automatic)
forced_width number or nil · Inherited from wibox.widget.base
Force a widget width.

Type constraints:

  • width number or nil The width (nil for automatic)
opacity number · Inherited from wibox.widget.base
The widget opacity (transparency).

Type constraints:

  • opacity number The opacity (between 0 and 1) (default 1)
visible boolean · Inherited from wibox.widget.base
The widget visibility.
buttons table · Inherited from wibox.widget.base
The widget buttons.

The table contains a list of awful.button objects.

See also:

Theme variables

beautiful.bg_systray string
The systray background color.

Type constraints:

  • string The color (string like "#ff0000" only)
beautiful.systray_icon_spacing integer
The systray icon spacing.

Type constraints:

  • The integer icon spacing (default 0)

Object methods

:add_button (button) · Inherited from wibox.widget.base
Add a new awful.button to this widget.

Parameters:

  • 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:

  1. 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.
  2. 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).
  3. If the widget is removed from the widget tree, the signal is still forwarded for some time, similar to the first case.

Parameters:

  • signal_name string
  • ... Other arguments
:index (widget[, recursive[, ...]]) -> (number, widget, table) · Inherited from wibox.widget.base
Get the index of a widget.

Parameters:

  • widget widget The widget to look for.
  • recursive boolean Recursively check accross the sub-widgets hierarchy. (optional)
  • ... widget Additional widgets to add at the end of the sub-widgets hierarchy "path". (optional)

Returns:

  1. number The widget index.
  2. widget The parent widget.
  3. 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 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 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 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 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.

See also:

widget::redraw_needed · Inherited from wibox.widget.base
When the widget content changed. This signal is emitted when the content of the widget changes. The widget will be redrawn, it is not re-layouted. Put differently, it is assumed that :layout() and :fit() would still return the same results as before.

See also:

button::press · Inherited from wibox.widget.base
When a mouse button is pressed over the widget.

Arguments:

  • 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 The entry from the result of wibox.drawable: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.

See also:

button::release · Inherited from wibox.widget.base
When a mouse button is released over the widget.

Arguments:

  • 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 The entry from the result of wibox.drawable: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.

See also:

mouse::enter · Inherited from wibox.widget.base
When the mouse enter a widget.

Arguments:

  • self table The current object instance itself.
  • find_widgets_result The entry from the result of wibox.drawable: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.

See also:

mouse::leave · Inherited from wibox.widget.base
When the mouse leave a widget.

Arguments:

  • self table The current object instance itself.
  • find_widgets_result The entry from the result of wibox.drawable: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.

See also:

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