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import * as Main from 'resource:///org/gnome/shell/ui/main.js';
import { PaintSignals } from '../conveniences/paint_signals.js';
import { DummyPipeline } from '../conveniences/dummy_pipeline.js';
export const WindowListBlur = class WindowListBlur {
constructor(connections, settings, effects_manager) {
this.connections = connections;
this.settings = settings;
this.paint_signals = new PaintSignals(connections);
this.effects_manager = effects_manager;
this.pipelines = [];
}
enable() {
this._log("blurring window list");
// blur if window-list is found
Main.layoutManager.uiGroup.get_children().forEach(
child => this.try_blur(child)
);
// listen to new actors in `Main.layoutManager.uiGroup` and blur it if
// if is window-list
this.connections.connect(
Main.layoutManager.uiGroup,
'child-added',
(_, child) => this.try_blur(child)
);
// connect to overview
this.connections.connect(Main.overview, 'showing', _ => {
this.hide();
});
this.connections.connect(Main.overview, 'hidden', _ => {
this.show();
});
}
try_blur(actor) {
if (
actor.constructor.name === "WindowList" &&
actor.style !== "background:transparent;"
) {
this._log("found window list to blur");
const pipeline = new DummyPipeline(
this.effects_manager, this.settings.window_list
);
pipeline.attach_effect_to_actor(actor);
this.pipelines.push(pipeline);
actor.set_style("background:transparent;");
actor._windowList.get_children().forEach(
window => this.style_window_button(window)
);
this.connections.connect(
actor._windowList,
'child-added',
(_, window) => this.style_window_button(window)
);
this.connections.connect(
actor,
'destroy',
_ => this.destroy_blur(pipeline, true)
);
// HACK
//
//`Shell.BlurEffect` does not repaint when shadows are under it. [1]
//
// This does not entirely fix this bug (shadows caused by windows
// still cause artifacts), but it prevents the shadows of the panel
// buttons to cause artifacts on the panel itself
//
// [1]: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/2857
if (this.settings.HACKS_LEVEL === 1) {
this._log("window list hack level 1");
this.paint_signals.disconnect_all_for_actor(actor);
this.paint_signals.connect(actor, pipeline.effect);
} else {
this.paint_signals.disconnect_all_for_actor(actor);
}
}
}
style_window_button(window) {
window.get_child_at_index(0).set_style(
"box-shadow:none; background-color:rgba(0,0,0,0.2); border-radius:5px;"
);
}
// IMPORTANT: do never call this in a mutable `this.pipelines.forEach`
destroy_blur(pipeline, actor_destroyed = false) {
if (!actor_destroyed) {
this.remove_style(pipeline.actor);
this.paint_signals.disconnect_all_for_actor(pipeline.actor);
}
pipeline.destroy();
let index = this.pipelines.indexOf(pipeline);
if (index >= 0)
this.pipelines.splice(pipeline, 1);
}
remove_style(actor) {
if (
actor.constructor.name === "WindowList" &&
actor.style === "background:transparent;"
) {
actor.style = null;
actor._windowList.get_children().forEach(
child => child.get_child_at_index(0).set_style(null)
);
}
}
hide() {
this.pipelines.forEach(pipeline => pipeline.effect?.set_enabled(false));
}
show() {
this.pipelines.forEach(pipeline => pipeline.effect?.set_enabled(true));
}
disable() {
this._log("removing blur from window list");
const immutable_pipelines_list = [...this.pipelines];
immutable_pipelines_list.forEach(pipeline => this.destroy_blur(pipeline));
this.pipelines = [];
this.connections.disconnect_all();
}
_log(str) {
if (this.settings.DEBUG)
console.log(`[Blur my Shell > window list] ${str}`);
}
};
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