Support mute state in volume slider

[seve-andre]

I "created" (mostly copied from dotfiles) this volume popup.

from ignis.widgets import Widget
from ignis.utils import Utils
from ignis.services.audio import AudioService

audio_service = AudioService.get_default()


class VolumePopup(Widget.Window):
    def __init__(self):
        super().__init__(
            layer="overlay",
            anchor=["bottom"],
            namespace="volume_popup",
            visible=False,
            css_classes=["rec-unset"],
            child=Widget.Box(
                css_classes=["popup"],
                spacing=10,
                child=[
                    Widget.Icon(
                        pixel_size=26,
                        image="volume-high-symbolic",
                    ),
                    Widget.Scale(
                        min=0,
                        max=150,
                        value=audio_service.speaker.bind("volume"),
                        css_classes=["material-slider"],
                        sensitive=False,
                        hexpand=True,
                    ),
                ],
            ),
        )

    def set_property(self, property_name, value):
        if property_name == "visible":
            self.__update_visible()

        super().set_property(property_name, value)

    @Utils.debounce(3_000)
    def __update_visible(self) -> None:
        super().set_property("visible", False)

When i click the mute key on the keyboard, the sink is muted, the volume is left untouched, and this popup is shown.

Currently, the scale widget shows the correct volume value just when increasing or decreasing the volume. When it's muted, i want it to show the value 0 on the slider, but it still shows the current volume (the behavior is correct).

However I want it to:

• show scale with value 0 when sink is muted
• show current volume value if sink is not muted.

How can i do so? How can i bind to the is_muted property too?

[linkfrg]

add this to your Widget.Scale:

setup=lambda self: audio.speaker.connect(
    "notify::is-muted",
    lambda x, y: self.set_value(
        0 if audio.speaker.is_muted else audio.speaker.volume
    ),
),

[seve-andre]

Thank you, it works now!

[linkfrg]

UPD: #103 adds bind_many(), so you can write it just like this:

Widget.Scale(
    value=audio.speaker.bind_many(
        ["volume", "is_muted"],
        lambda volume, is_muted: 0 if is_muted else volume,
    ),
)

[seve-andre]

Wow, great. Thank you for the heads up!