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extension.js
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extension.js
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import Meta from 'gi://Meta';
import Clutter from 'gi://Clutter';
import * as Main from 'resource:///org/gnome/shell/ui/main.js';
import { Extension } from 'resource:///org/gnome/shell/extensions/extension.js';
import { update_from_old_settings } from './conveniences/settings_updater.js';
import { PipelinesManager } from './conveniences/pipelines_manager.js';
import { EffectsManager } from './conveniences/effects_manager.js';
import { Connections } from './conveniences/connections.js';
import { Settings } from './conveniences/settings.js';
import { KEYS } from './conveniences/keys.js';
import { PanelBlur } from './components/panel.js';
import { OverviewBlur } from './components/overview.js';
import { DashBlur } from './components/dash_to_dock.js';
import { LockscreenBlur } from './components/lockscreen.js';
import { AppFoldersBlur } from './components/appfolders.js';
import { WindowListBlur } from './components/window_list.js';
import { ApplicationsBlur } from './components/applications.js';
import { ScreenshotBlur } from './components/screenshot.js';
/// The main extension class, created when the GNOME Shell is loaded.
export default class BlurMyShell extends Extension {
/// Enables the extension.
enable() {
// add the extension to global to make it accessible to other extensions
// create it first as it is very useful when debugging crashes
global.blur_my_shell = this;
// update from old settings, very important for hacks level specifically
update_from_old_settings(this.getSettings());
// create a Settings instance, to manage extension's preferences
// it needs to be loaded before logging, as it checks for DEBUG
this._settings = new Settings(KEYS, this.getSettings());
this._log("enabling extension...");
// create main extension Connections instance
this._connection = new Connections;
// store it in a global array
this._connections = [this._connection];
// create a global effects manager (to prevent RAM bleeding)
this._effects_manager = new EffectsManager(this._connection);
// create a global pipelines manager, that helps talking with preferences
this._pipelines_manager = new PipelinesManager(this._settings);
// create an instance of each component, with its associated Connections
let init = () => {
// create a Connections instance, to manage signals
let connection = new Connections;
// store it to keeps track of them globally
this._connections.push(connection);
return [connection, this._settings, this._effects_manager];
};
this._panel_blur = new PanelBlur(...init());
this._dash_to_dock_blur = new DashBlur(...init());
this._overview_blur = new OverviewBlur(...init());
this._lockscreen_blur = new LockscreenBlur(...init());
this._appfolder_blur = new AppFoldersBlur(...init());
this._window_list_blur = new WindowListBlur(...init());
this._applications_blur = new ApplicationsBlur(...init());
this._screenshot_blur = new ScreenshotBlur(...init());
// connect each component to preferences change
this._connect_to_settings();
// enable the lockscreen blur, only one important in both `user` session and `unlock-dialog`
if (this._settings.lockscreen.BLUR && !this._lockscreen_blur.enabled)
this._lockscreen_blur.enable();
// ensure we take the correct action for the current session mode
this._user_session_mode_enabled = false;
this._on_session_mode_changed(Main.sessionMode);
// watch for changes to the session mode
this._connection.connect(Main.sessionMode, 'updated',
() => this._on_session_mode_changed(Main.sessionMode)
);
}
/// Enables the components related to the user session (everything except lockscreen blur).
_enable_user_session() {
this._log("changing mode to user session...");
// maybe disable clipped redraw
this._update_clipped_redraws();
// enable every component
// if the shell is still starting up, wait for it to be entirely loaded;
// this should prevent bugs like #136 and #137
if (Main.layoutManager._startingUp) {
this._connection.connect(
Main.layoutManager,
'startup-complete',
() => this._enable_components()
);
} else
this._enable_components();
// try to enable the components as soon as possible anyway, this way the
// overview may load before the user sees it
try {
if (this._settings.overview.BLUR && !this._overview_blur.enabled)
this._overview_blur.enable();
} catch (e) {
this._log("Could not enable overview blur directly");
this._log(e);
}
try {
if (this._settings.dash_to_dock.BLUR
&& !this._dash_to_dock_blur.enabled)
this._dash_to_dock_blur.enable();
} catch (e) {
this._log("Could not enable dash-to-dock blur directly");
this._log(e);
}
try {
if (this._settings.panel.BLUR && !this._panel_blur.enabled)
this._panel_blur.enable();
} catch (e) {
this._log("Could not enable panel blur directly");
this._log(e);
}
// tells the extension we have enabled the user session components, so that we do not
// disable them later if they were not even enabled to begin with
this._user_session_mode_enabled = true;
}
/// Disables the extension.
///
/// This extension needs to use the 'unlock-dialog' session mode in order to change the blur on
/// the lockscreen. We have kind of two states of enablement for this extension:
/// - the 'enabled' state, which means that we have created the necessary components (which only
/// are js objects) and enabled the lockscreen blur (which means swapping two functions from
/// the `UnlockDialog` constructor with our ones;
/// - the 'user session enabled` mode, which means that we are in the 'enabled' mode AND we are
/// in the user mode, and so we enable all the other components that we created before.
/// We switch from one state to the other thanks to `this._on_session_mode_changed`, and we
/// track wether or not we are in the user mode with `this._user_session_mode_enabled` (because
/// `this._on_session_mode_changed` might be called multiple times while in the user session
/// mode, typically when going back from simple lockscreen and not sleep mode).
disable() {
this._log("disabling extension...");
// disable every component from user session mode
if (this._user_session_mode_enabled)
this._disable_user_session();
this._overview_blur.restore_patched_proto();
// disable lockscreen blur too
this._lockscreen_blur.disable();
// untrack them
this._panel_blur = null;
this._dash_to_dock_blur = null;
this._overview_blur = null;
this._appfolder_blur = null;
this._lockscreen_blur = null;
this._window_list_blur = null;
this._applications_blur = null;
this._screenshot_blur = null;
// make sure no settings change can re-enable them
this._settings.disconnect_all_settings();
// force disconnecting every signal, even if component crashed
this._connections.forEach((connections) => {
connections.disconnect_all();
});
this._connections = [];
// remove the clipped redraws flag
this._reenable_clipped_redraws();
// remove the extension from GJS's global
delete global.blur_my_shell;
this._log("extension disabled.");
this._settings = null;
}
/// Disables the components related to the user session (everything except lockscreen blur).
_disable_user_session() {
this._log("disabling user session mode...");
// disable every component except lockscreen blur
this._panel_blur.disable();
this._dash_to_dock_blur.disable();
this._overview_blur.disable();
this._appfolder_blur.disable();
this._window_list_blur.disable();
this._applications_blur.disable();
this._screenshot_blur.disable();
// remove the clipped redraws flag
this._reenable_clipped_redraws();
// tells the extension we have disabled the user session components, so that we do not
// disable them later again if they were already disabled
this._user_session_mode_enabled = false;
}
/// Restarts the components related to the user session.
_restart() {
this._log("restarting...");
this._disable_user_session();
this._enable_user_session();
this._log("restarted.");
}
/// Changes the extension to operate either on 'user' mode or 'unlock-dialog' mode, switching
/// from one to the other means enabling/disabling every component except lockscreen blur.
_on_session_mode_changed(session) {
if (session.currentMode === 'user' || session.parentMode === 'user') {
if (!this._user_session_mode_enabled)
// we need to activate everything
this._enable_user_session();
}
else if (session.currentMode === 'unlock-dialog') {
if (this._user_session_mode_enabled)
// we need to disable the components related to the user session mode
this._disable_user_session();
}
}
/// Add or remove the clutter debug flag to disable clipped redraws.
/// This will entirely fix the blur effect, but should not be used except if
/// the user really needs it, as clipped redraws are a huge performance
/// boost for the compositor.
_update_clipped_redraws() {
if (this._settings.HACKS_LEVEL === 2)
this._disable_clipped_redraws();
else
this._reenable_clipped_redraws();
}
/// Add the Clutter debug flag.
_disable_clipped_redraws() {
Meta.add_clutter_debug_flags(
null, Clutter.DrawDebugFlag.DISABLE_CLIPPED_REDRAWS, null
);
}
/// Remove the Clutter debug flag.
_reenable_clipped_redraws() {
Meta.remove_clutter_debug_flags(
null, Clutter.DrawDebugFlag.DISABLE_CLIPPED_REDRAWS, null
);
}
/// Enables every component from the user session needed, should be called when the shell is
/// entirely loaded as the `enable` methods interact with it.
_enable_components() {
// enable each component if needed, and if it is not already enabled
if (this._settings.panel.BLUR && !this._panel_blur.enabled)
this._panel_blur.enable();
if (this._settings.dash_to_dock.BLUR && !this._dash_to_dock_blur.enabled)
this._dash_to_dock_blur.enable();
if (this._settings.overview.BLUR && !this._overview_blur.enabled)
this._overview_blur.enable();
if (this._settings.appfolder.BLUR)
this._appfolder_blur.enable();
if (this._settings.applications.BLUR)
this._applications_blur.enable();
if (this._settings.window_list.BLUR)
this._window_list_blur.enable();
if (this._settings.screenshot.BLUR)
this._screenshot_blur.enable();
this._log("all components enabled.");
}
/// Updates needed things in each component when a preference changed
_connect_to_settings() {
// restart the extension when hacks level is changed, easier than
// restarting individual components and should not happen often either
this._settings.HACKS_LEVEL_changed(() => this._restart());
// ---------- OVERVIEW ----------
// toggled on/off
this._settings.overview.BLUR_changed(() => {
if (this._settings.overview.BLUR)
this._overview_blur.enable();
else
this._overview_blur.disable();
});
// overview pipeline changed
this._settings.overview.PIPELINE_changed(() => {
if (this._settings.overview.BLUR)
this._overview_blur.update_backgrounds();
});
// overview components style changed
this._settings.overview.STYLE_COMPONENTS_changed(() => {
if (this._settings.overview.BLUR)
this._overview_blur.update_components_classname();
});
// ---------- APPFOLDER ----------
// toggled on/off
this._settings.appfolder.BLUR_changed(() => {
if (this._settings.appfolder.BLUR)
this._appfolder_blur.enable();
else
this._appfolder_blur.disable();
});
// appfolder sigma changed
this._settings.appfolder.SIGMA_changed(() => {
if (this._settings.appfolder.BLUR)
this._appfolder_blur.set_sigma(
this._settings.appfolder.SIGMA
);
});
// appfolder brightness changed
this._settings.appfolder.BRIGHTNESS_changed(() => {
if (this._settings.appfolder.BLUR)
this._appfolder_blur.set_brightness(
this._settings.appfolder.BRIGHTNESS
);
});
// appfolder dialogs style changed
this._settings.appfolder.STYLE_DIALOGS_changed(() => {
if (this._settings.appfolder.BLUR)
this._appfolder_blur.blur_appfolders();
});
// ---------- PANEL ----------
// toggled on/off
this._settings.panel.BLUR_changed(() => {
if (this._settings.panel.BLUR)
this._panel_blur.enable();
else
this._panel_blur.disable();
});
// static blur toggled on/off, really we can just reload the blur at this point
this._settings.panel.STATIC_BLUR_changed(() => {
if (this._settings.panel.BLUR)
this._panel_blur.reset();
});
// panel pipeline changed
this._settings.panel.PIPELINE_changed(() => {
if (this._settings.panel.BLUR)
this._panel_blur.update_pipeline();
});
// panel blur's overview connection toggled on/off
this._settings.panel.UNBLUR_IN_OVERVIEW_changed(() => {
this._panel_blur.connect_to_windows_and_overview();
});
// force light text toggled on/off
this._settings.panel.FORCE_LIGHT_TEXT_changed(() => {
if (this._settings.panel.BLUR)
this._panel_blur.update_light_text_classname();
});
// panel override background toggled on/off
this._settings.panel.OVERRIDE_BACKGROUND_changed(() => {
if (this._settings.panel.BLUR)
this._panel_blur.connect_to_windows_and_overview();
});
// panel style changed
this._settings.panel.STYLE_PANEL_changed(() => {
if (this._settings.panel.BLUR)
this._panel_blur.connect_to_windows_and_overview();
});
// panel background's dynamic overriding toggled on/off
this._settings.panel.OVERRIDE_BACKGROUND_DYNAMICALLY_changed(() => {
if (this._settings.panel.BLUR)
this._panel_blur.connect_to_windows_and_overview();
});
// ---------- DASH TO DOCK ----------
// toggled on/off
this._settings.dash_to_dock.BLUR_changed(() => {
if (this._settings.dash_to_dock.BLUR)
this._dash_to_dock_blur.enable();
else
this._dash_to_dock_blur.disable();
});
// static blur toggled on/off
this._settings.dash_to_dock.STATIC_BLUR_changed(() => {
if (this._settings.dash_to_dock.BLUR)
this._dash_to_dock_blur.change_blur_type();
});
// overview pipeline changed
this._settings.dash_to_dock.PIPELINE_changed(() => {
if (this._settings.dash_to_dock.BLUR)
this._dash_to_dock_blur.update_pipeline();
});
// dash-to-dock override background toggled on/off
this._settings.dash_to_dock.OVERRIDE_BACKGROUND_changed(() => {
if (this._settings.dash_to_dock.BLUR)
this._dash_to_dock_blur.update_background();
});
// dash-to-dock style changed
this._settings.dash_to_dock.STYLE_DASH_TO_DOCK_changed(() => {
if (this._settings.dash_to_dock.BLUR)
this._dash_to_dock_blur.update_background();
});
// dash-to-dock blur's overview connection toggled on/off
this._settings.dash_to_dock.UNBLUR_IN_OVERVIEW_changed(() => {
if (this._settings.dash_to_dock.BLUR)
this._dash_to_dock_blur.connect_to_overview();
});
// ---------- APPLICATIONS ----------
// toggled on/off
this._settings.applications.BLUR_changed(() => {
if (this._settings.applications.BLUR)
this._applications_blur.enable();
else
this._applications_blur.disable();
});
// application opacity changed
this._settings.applications.OPACITY_changed(() => {
if (this._settings.applications.BLUR)
this._applications_blur.set_opacity(
this._settings.applications.OPACITY
);
});
// application dynamic-opacity changed
this._settings.applications.DYNAMIC_OPACITY_changed(() => {
if (this._settings.applications.BLUR)
this._applications_blur.init_dynamic_opacity();
});
// application blur-on-overview changed
this._settings.applications.BLUR_ON_OVERVIEW_changed(() => {
if (this._settings.applications.BLUR)
this._applications_blur.connect_to_overview();
});
// application enable-all changed
this._settings.applications.ENABLE_ALL_changed(() => {
if (this._settings.applications.BLUR)
this._applications_blur.update_all_windows();
});
// application whitelist changed
this._settings.applications.WHITELIST_changed(() => {
if (
this._settings.applications.BLUR
&& !this._settings.applications.ENABLE_ALL
)
this._applications_blur.update_all_windows();
});
// application blacklist changed
this._settings.applications.BLACKLIST_changed(() => {
if (
this._settings.applications.BLUR
&& this._settings.applications.ENABLE_ALL
)
this._applications_blur.update_all_windows();
});
// ---------- LOCKSCREEN ----------
// toggled on/off
this._settings.lockscreen.BLUR_changed(() => {
if (this._settings.lockscreen.BLUR)
this._lockscreen_blur.enable();
else
this._lockscreen_blur.disable();
});
// lockscreen pipeline changed
this._settings.lockscreen.PIPELINE_changed(() => {
if (this._settings.lockscreen.BLUR)
this._lockscreen_blur.update_lockscreen();
});
// ---------- WINDOW LIST ----------
// toggled on/off
this._settings.window_list.BLUR_changed(() => {
if (this._settings.window_list.BLUR)
this._window_list_blur.enable();
else
this._window_list_blur.disable();
});
// ---------- HIDETOPBAR ----------
// toggled on/off
this._settings.hidetopbar.COMPATIBILITY_changed(() => {
// no need to verify if it is enabled or not, it is done anyway
this._panel_blur.connect_to_windows_and_overview();
});
// ---------- DASH TO PANEL ----------
// toggled on/off
this._settings.dash_to_panel.BLUR_ORIGINAL_PANEL_changed(() => {
if (this._settings.panel.BLUR)
this._panel_blur.reset();
});
// ---------- SCREENSHOT ----------
// toggled on/off
this._settings.screenshot.BLUR_changed(() => {
if (this._settings.screenshot.BLUR)
this._screenshot_blur.enable();
else
this._screenshot_blur.disable();
});
// screenshot pipeline changed
this._settings.screenshot.PIPELINE_changed(() => {
if (this._settings.screenshot.BLUR)
this._screenshot_blur.update_pipeline();
});
}
_log(str) {
if (this._settings.DEBUG)
console.log(`[Blur my Shell > extension] ${str}`);
}
}