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Option to dim wallpapers when dark style is active (#1462)

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lenemter 2022-09-27 07:30:09 +09:00 committed by GitHub
parent d9ebac365c
commit 16492b1f71
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2 changed files with 95 additions and 3 deletions
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8
data/gala.gschema.xml
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@ -24,6 +24,14 @@
</key>
</schema>
<schema path="/io/elementary/desktop/background/" id="io.elementary.desktop.background">
<key type="b" name="dim-wallpaper-in-dark-style">
<default>false</default>
<summary>Dim wallpapers when dark style is active</summary>
<description></description>
</key>
</schema>
<schema path="/org/pantheon/desktop/gala/behavior/" id="org.pantheon.desktop.gala.behavior">
<key enum="GalaActionType" name="hotcorner-topleft">
<default>"none"</default>

90
src/Background/BackgroundManager.vala
View File

@ -17,7 +17,10 @@
namespace Gala {
public class BackgroundManager : Meta.BackgroundGroup {
const string BACKGROUND_SCHEMA = "org.gnome.desktop.background";
const string GNOME_BACKGROUND_SCHEMA = "org.gnome.desktop.background";
const string GALA_BACKGROUND_SCHEMA = "io.elementary.desktop.background";
const string DIM_WALLPAPER_KEY = "dim-wallpaper-in-dark-style";
const double DIM_OPACITY = 0.85;
const int FADE_ANIMATION_TIME = 1000;
public signal void changed ();
@ -30,19 +33,27 @@ namespace Gala {
Meta.BackgroundActor background_actor;
Meta.BackgroundActor? new_background_actor = null;
private Clutter.PropertyTransition? last_dim_transition = null;
private static Settings gala_background_settings;
public BackgroundManager (Meta.Display display, int monitor_index, bool control_position = true) {
Object (display: display, monitor_index: monitor_index, control_position: control_position);
}
static construct {
gala_background_settings = new Settings (GALA_BACKGROUND_SCHEMA);
}
construct {
background_source = BackgroundCache.get_default ().get_background_source (display, BACKGROUND_SCHEMA);
background_source = BackgroundCache.get_default ().get_background_source (display, GNOME_BACKGROUND_SCHEMA);
background_actor = create_background_actor ();
destroy.connect (on_destroy);
}
void on_destroy () {
BackgroundCache.get_default ().release_background_source (BACKGROUND_SCHEMA);
BackgroundCache.get_default ().release_background_source (GNOME_BACKGROUND_SCHEMA);
background_source = null;
if (new_background_actor != null) {
@ -139,10 +150,24 @@ namespace Gala {
#if HAS_MUTTER338
((Meta.BackgroundContent)background_actor.content).background = background.background;
((Meta.BackgroundContent)background_actor.content).vignette = true;
#else
background_actor.background = background.background;
background_actor.vignette = true;
#endif
// Don't play dim animation when launching gala or switching wallpaper
if (should_dim ()) {
#if HAS_MUTTER338
((Meta.BackgroundContent)background_actor.content).brightness = DIM_OPACITY;
#else
background_actor.brightness = DIM_OPACITY;
#endif
}
Granite.Settings.get_default ().notify["prefers-color-scheme"].connect (update_dim_wallpaper);
gala_background_settings.changed[DIM_WALLPAPER_KEY].connect (update_dim_wallpaper);
insert_child_below (background_actor, null);
var monitor = display.get_monitor_geometry (monitor_index);
@ -174,5 +199,64 @@ namespace Gala {
return background_actor;
}
private bool should_dim () {
return (
Granite.Settings.get_default ().prefers_color_scheme == Granite.Settings.ColorScheme.DARK &&
gala_background_settings.get_boolean (DIM_WALLPAPER_KEY)
);
}
// OpacityDimActor is used for transitioning background actor's vignette brightness
// In mutter 3.38+ vignette's properties are contained in Meta.BackgroundContent
// which doesn't support transitions
// so we bind OpacityDimActor.opacity to ((Meta.BackgroundContent) background_actor.content).brightness
// and then create transition for OpacityDimActor.opacity
private class OpacityDimActor : Clutter.Actor {
public new double opacity { get; set; }
}
private void update_dim_wallpaper () {
if (last_dim_transition != null) {
last_dim_transition.stop ();
}
var dim_actor = new OpacityDimActor ();
background_actor.add_child (dim_actor);
var binding = dim_actor.bind_property (
"opacity",
#if HAS_MUTTER338
(Meta.BackgroundContent) background_actor.content,
#else
background_actor,
#endif
"brightness",
BindingFlags.DEFAULT
);
var transition = new Clutter.PropertyTransition ("opacity");
transition.set_from_value (
#if HAS_MUTTER338
((Meta.BackgroundContent) background_actor.content).brightness
#else
background_actor.brightness
#endif
);
transition.set_to_value (should_dim () ? DIM_OPACITY : 1.0);
transition.duration = FADE_ANIMATION_TIME;
transition.progress_mode = Clutter.AnimationMode.EASE_OUT_QUAD;
transition.remove_on_complete = true;
transition.completed.connect (() => {
binding.unbind ();
background_actor.remove_child (dim_actor);
dim_actor.destroy ();
});
dim_actor.add_transition ("wallpaper-dim", transition);
last_dim_transition = transition;
}
}
}