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import Gio from 'gi://Gio';
import GLib from 'gi://GLib';
import GObject from 'gi://GObject';
import {Extension} from 'resource:///org/gnome/shell/extensions/extension.js';
import * as Main from 'resource:///org/gnome/shell/ui/main.js';
import * as PopupMenu from 'resource:///org/gnome/shell/ui/popupMenu.js';
import * as QuickSettings from 'resource:///org/gnome/shell/ui/quickSettings.js';
import {CaptureDialog} from './capture-dialog.js';
import {
DisplayConfig,
ProfileIndex,
PROFILE_VARIANT_TYPE,
applyScalesToLayout,
getTextScalingFactor,
profileLayoutMatches,
profileMatches,
setTextScalingFactor,
} from './display-config.js';
const AUTO_APPLY_DELAY_MS = 1000;
function monitorSetSignature(monitors) {
return JSON.stringify(monitors.map(({connector, vendor, product, serial}) =>
[connector, vendor, product, serial]).sort());
}
const DisplayProfileToggle = GObject.registerClass(
class DisplayProfileToggle extends QuickSettings.QuickMenuToggle {
_init(extension) {
super._init({title: 'Displays', iconName: 'video-display-symbolic', toggleMode: false});
this.menu.setHeader('video-display-symbolic', 'Display Profiles');
this._extension = extension;
this._settings = extension.getSettings();
this._interfaceSettings = new Gio.Settings({schema_id: 'org.gnome.desktop.interface'});
this._displayConfig = new DisplayConfig();
this._autoApplySourceId = 0;
this._captureDialog = null;
this._autoAppliedMonitorSet = null;
this._applying = false;
this._settingsChangedId = this._settings.connect('changed', () => this._rebuildMenu());
this._textScalingChangedId = this._interfaceSettings.connect(
'changed::text-scaling-factor', () => this._rebuildMenu());
this._displayConfig.connectObject('state-changed', () => this._onStateChanged(), this);
this.connect('clicked', () => this._applyNext());
this._rebuildMenu();
}
destroy() {
if (this._autoApplySourceId)
GLib.source_remove(this._autoApplySourceId);
this._captureDialog?.destroy();
this._captureDialog = null;
this._displayConfig.disconnectObject(this);
this._displayConfig.destroy();
this._settings.disconnect(this._settingsChangedId);
this._interfaceSettings.disconnect(this._textScalingChangedId);
this._interfaceSettings = null;
super.destroy();
}
_profiles() {
return this._settings.get_value('profiles').deepUnpack();
}
_matchingProfiles() {
return this._profiles().filter(profile => profileMatches(profile, this._displayConfig.monitors));
}
_activeProfile(profiles) {
const snapshot = this._displayConfig.snapshot();
return profiles.find(profile => {
try {
const adaptedProfile = this._displayConfig.adaptProfile(profile);
return adaptedProfile !== null && profileLayoutMatches(
adaptedProfile,
snapshot,
this._interfaceSettings.get_double('text-scaling-factor'));
} catch (error) {
logError(error, `Unable to inspect display profile ${profile[ProfileIndex.NAME]}`);
return false;
}
});
}
_onStateChanged() {
this._rebuildMenu();
if (!this._settings.get_boolean('automatically-apply')) {
if (this._autoApplySourceId)
GLib.source_remove(this._autoApplySourceId);
this._autoApplySourceId = 0;
return;
}
const monitorSet = monitorSetSignature(this._displayConfig.monitors);
if (monitorSet === this._autoAppliedMonitorSet)
return;
if (this._autoApplySourceId)
GLib.source_remove(this._autoApplySourceId);
this._autoApplySourceId = 0;
const profiles = this._matchingProfiles();
if (this._activeProfile(profiles)) {
this._autoAppliedMonitorSet = monitorSet;
return;
}
this._autoApplySourceId = GLib.timeout_add(GLib.PRIORITY_DEFAULT, AUTO_APPLY_DELAY_MS, () => {
this._autoApplySourceId = 0;
const profile = this._matchingProfiles()[0];
if (profile) {
this._autoAppliedMonitorSet = monitorSet;
this._apply(profile);
}
return GLib.SOURCE_REMOVE;
});
}
_rebuildMenu() {
this.menu.removeAll();
const profiles = this._matchingProfiles();
const activeProfile = this._activeProfile(profiles);
this.checked = activeProfile !== undefined;
this.subtitle = activeProfile?.[ProfileIndex.NAME] ??
(profiles.length ? `${profiles.length} matching` : 'No match');
for (const profile of profiles) {
const item = new PopupMenu.PopupMenuItem(profile[ProfileIndex.NAME]);
item.connect('activate', () => this._apply(profile));
if (profile === activeProfile)
item.setOrnament(PopupMenu.Ornament.CHECK);
this.menu.addMenuItem(item);
}
if (!profiles.length)
this.menu.addMenuItem(new PopupMenu.PopupMenuItem('No saved profile matches these displays.', {reactive: false}));
this.menu.addMenuItem(new PopupMenu.PopupSeparatorMenuItem());
const save = new PopupMenu.PopupImageMenuItem('Save current layout as profile', 'document-save-symbolic');
save.connect('activate', () => this._promptToSaveCurrentLayout());
this.menu.addMenuItem(save);
const preferences = new PopupMenu.PopupImageMenuItem('Profile preferences', 'emblem-system-symbolic');
preferences.connect('activate', () => this._extension.openPreferences());
this.menu.addMenuItem(preferences);
}
_applyNext() {
const profiles = this._matchingProfiles();
if (profiles.length)
this._apply(profiles[0]);
}
async _apply(profile) {
if (this._applying)
return;
this._applying = true;
try {
await this._displayConfig.apply(profile);
const textScalingFactor = getTextScalingFactor(profile);
if (textScalingFactor !== null)
this._interfaceSettings.set_double('text-scaling-factor', textScalingFactor);
} catch (error) {
logError(error, `Unable to apply display profile ${profile[ProfileIndex.NAME]}`);
Main.notifyError('Display Profile Switcher', error.message);
} finally {
this._applying = false;
}
}
_promptToSaveCurrentLayout() {
if (this._captureDialog)
return;
if (!this._displayConfig.snapshot()) {
Main.notify('Display Profile Switcher', 'Display configuration is still loading.');
return;
}
const profileNames = this._profiles().map(profile => profile[ProfileIndex.NAME]);
this._captureDialog = new CaptureDialog(
profileNames,
this._displayConfig.monitors,
this._displayConfig.scaleGroups,
this._displayConfig.logicalDisplays.length,
this._interfaceSettings.get_double('text-scaling-factor'),
options => {
this._captureDialog?.destroy();
this._captureDialog = null;
this._saveCurrentLayout(options);
});
this._captureDialog.connect('closed', () => {
if (this._captureDialog?.opened)
return;
this._captureDialog?.destroy();
this._captureDialog = null;
});
this._captureDialog.open();
}
_saveCurrentLayout({rules, name, overwrite, textScalingFactor, displayScales}) {
const snapshot = this._displayConfig.snapshot();
if (!snapshot) {
Main.notify('Display Profile Switcher', 'Display configuration is still loading.');
return;
}
if (!name) {
Main.notifyError('Display Profile Switcher', 'A profile name is required.');
return;
}
if (!Number.isFinite(textScalingFactor) || textScalingFactor <= 0) {
Main.notifyError('Display Profile Switcher', 'Text scale must be a positive number.');
return;
}
if (rules.some(rule => !Object.keys(rule).some(field => !field.startsWith('__')))) {
Main.notifyError('Display Profile Switcher', 'Choose at least one matching field for every display.');
return;
}
if (displayScales.length !== snapshot.logicalMonitors.length ||
displayScales.some(scale => !Number.isFinite(scale) || scale <= 0)) {
Main.notifyError('Display Profile Switcher', 'Choose a valid scale for every display.');
return;
}
applyScalesToLayout(
snapshot.logicalMonitors,
displayScales,
this._displayConfig.globalScaleRequired,
this._displayConfig.logicalDisplays,
this._displayConfig.layoutMode);
const profile = [name, rules, snapshot.logicalMonitors, snapshot.properties];
setTextScalingFactor(profile, textScalingFactor);
const profiles = this._profiles();
const existingIndex = profiles.findIndex(candidate => candidate[ProfileIndex.NAME] === name);
if (overwrite && existingIndex === -1) {
Main.notifyError('Display Profile Switcher', `No existing profile is named “${name}”.`);
return;
}
if (overwrite)
profiles[existingIndex] = profile;
else
profiles.push(profile);
this._settings.set_value('profiles', new GLib.Variant(PROFILE_VARIANT_TYPE, profiles));
this._apply(profile);
}
});
export default class DisplayProfileSwitcherExtension extends Extension {
enable() {
this._indicator = new QuickSettings.SystemIndicator();
this._toggle = new DisplayProfileToggle(this);
this._indicator.quickSettingsItems.push(this._toggle);
Main.panel.statusArea.quickSettings.addExternalIndicator(this._indicator);
}
disable() {
this._toggle?.destroy();
this._indicator?.destroy();
this._toggle = null;
this._indicator = null;
}
}
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