citadel-realms/js/model/LabelColors.js
2024-11-12 17:26:26 -05:00

70 lines
2.5 KiB
JavaScript

import Gdk from 'gi://Gdk?version=4.0';
import Gio from 'gi://Gio';
const CITADEL_SETTINGS_SCHEMA = 'com.subgraph.citadel';
const LABEL_COLOR_LIST_KEY = 'label-color-list';
const REALM_LABEL_COLORS_KEY = 'realm-label-colors';
const DEFAULT_LABEL_COLOR = new Gdk.RGBA({ red: 153, green: 193, blue: 241, });
export class LabelColorManager {
constructor() {
this._citadelSettings = new Gio.Settings({ schema_id: CITADEL_SETTINGS_SCHEMA });
this._defaultColors = [];
this._realmLabelColors = new Map();
this._loadColors();
}
_loadColors() {
let entries = this._citadelSettings.get_strv(LABEL_COLOR_LIST_KEY);
entries.forEach(entry => {
let c = new Gdk.RGBA();
if (c.parse(entry)) {
this._defaultColors.push(c);
}
});
entries = this._citadelSettings.get_strv(REALM_LABEL_COLORS_KEY);
entries.forEach(entry => {
let parts = entry.split(":");
if (parts.length === 2) {
let c = new Gdk.RGBA();
if (c.parse(parts[1])) {
this._realmLabelColors.set(parts[0], c);
}
}
});
}
updateRealmColor(realm, color) {
this._realmLabelColors.set(realm.name, color);
this._storeRealmColors();
}
lookupRealmColor(realm) {
let c = this._realmLabelColors.get(realm.name);
if (c) {
return c;
}
let newColor = this._allocateColor();
this.updateRealmColor(realm, newColor);
return newColor;
}
_storeRealmColors() {
let entries = [];
this._realmLabelColors.forEach((v, k) => {
entries.push(`${k}:${v.to_string()}`);
});
entries.sort();
this._citadelSettings.set_strv(REALM_LABEL_COLORS_KEY, entries);
}
_allocateColor() {
// 1) No default colors? return a built in color
if (this._defaultColors.length === 0) {
return DEFAULT_LABEL_COLOR;
}
// 2) Find first color on default color list that isn't used already
let usedColors = Array.from(this._realmLabelColors.values());
let defaultColor = this._defaultColors.find(color => !usedColors.some(c => c.equal(color)));
if (defaultColor) {
return defaultColor;
}
// 3) Choose a random element of the default list
let index = Math.floor(Math.random() * this._defaultColors.length);
return this._defaultColors[index];
}
}