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185 lines
6.7 KiB
185 lines
6.7 KiB
'use strict';
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const { Gio, GLib } = imports.gi;
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const Signals = imports.signals;
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const ExtensionUtils = imports.misc.extensionUtils;
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/// An enum non-extensively describing the type of gsettings key.
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var Type = {
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B: 'Boolean',
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I: 'Integer',
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D: 'Double',
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S: 'String',
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C: 'Color',
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AS: 'StringArray'
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};
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/// An object to get and manage the gsettings preferences.
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///
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/// Should be initialized with an array of keys, for example:
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///
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/// let prefs = new Prefs([
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/// { type: Type.I, name: "panel-corner-radius" },
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/// { type: Type.B, name: "debug" }
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/// ]);
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///
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/// Each {type, name} object represents a gsettings key, which must be created
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/// in the gschemas.xml file of the extension.
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var Prefs = class Prefs {
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constructor(keys) {
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let settings = this.settings = ExtensionUtils.getSettings();
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this.keys = keys;
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this.keys.forEach(bundle => {
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let component = this;
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let component_settings = settings;
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if (bundle.component !== "general") {
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let bundle_component = bundle.component.replaceAll('-', '_');
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this[bundle_component] = {
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settings: this.settings.get_child(bundle.component)
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};
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component = this[bundle_component];
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component_settings = settings.get_child(bundle.component);
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}
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bundle.schemas.forEach(key => {
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let property_name = this.get_property_name(key.name);
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switch (key.type) {
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case Type.B:
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Object.defineProperty(component, property_name, {
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get() {
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return component_settings.get_boolean(key.name);
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},
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set(v) {
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component_settings.set_boolean(key.name, v);
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}
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});
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break;
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case Type.I:
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Object.defineProperty(component, property_name, {
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get() {
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return component_settings.get_int(key.name);
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},
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set(v) {
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component_settings.set_int(key.name, v);
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}
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});
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break;
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case Type.D:
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Object.defineProperty(component, property_name, {
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get() {
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return component_settings.get_double(key.name);
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},
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set(v) {
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component_settings.set_double(key.name, v);
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}
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});
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break;
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case Type.S:
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Object.defineProperty(component, property_name, {
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get() {
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return component_settings.get_string(key.name);
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},
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set(v) {
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component_settings.set_string(key.name, v);
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}
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});
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break;
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case Type.C:
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Object.defineProperty(component, property_name, {
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// returns the array [red, blue, green, alpha] with
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// values between 0 and 1
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get() {
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let val = component_settings.get_value(key.name);
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return val.deep_unpack();
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},
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// takes an array [red, blue, green, alpha] with
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// values between 0 and 1
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set(v) {
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let val = new GLib.Variant("(dddd)", v);
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component_settings.set_value(key.name, val);
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}
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});
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break;
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case Type.AS:
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Object.defineProperty(component, property_name, {
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get() {
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let val = component_settings.get_value(key.name);
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return val.deep_unpack();
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},
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set(v) {
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let val = new GLib.Variant("as", v);
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component_settings.set_value(key.name, val);
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}
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});
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break;
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}
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component[property_name + '_reset'] = function () {
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return component_settings.reset(key.name);
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};
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component[property_name + '_changed'] = function (cb) {
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return component_settings.connect('changed::' + key.name, cb);
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};
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component[property_name + '_disconnect'] = function () {
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return component_settings.disconnect.apply(
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component_settings, arguments
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);
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};
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});
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});
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};
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/// Reset the preferences.
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reset() {
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this.keys.forEach(bundle => {
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let component = this;
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if (bundle.component !== "general") {
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let bundle_component = bundle.component.replaceAll('-', '_');
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component = this[bundle_component];
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}
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bundle.schemas.forEach(key => {
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let property_name = this.get_property_name(key.name);
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component[property_name + '_reset']();
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});
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});
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this.emit('reset', true);
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}
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/// From the gschema name, returns the name of the associated property on
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/// the Prefs object.
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get_property_name(name) {
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return name.replaceAll('-', '_').toUpperCase();
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}
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/// Remove all connections managed by the Prefs object, i.e. created with
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/// `prefs.PROPERTY_changed(callback)`.
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disconnect_all_settings() {
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this.keys.forEach(bundle => {
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let component = this;
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if (bundle.component !== "general") {
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let bundle_component = bundle.component.replaceAll('-', '_');
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component = this[bundle_component];
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}
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bundle.schemas.forEach(key => {
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let property_name = this.get_property_name(key.name);
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component[property_name + '_disconnect']();
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});
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});
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}
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};
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Signals.addSignalMethods(Prefs.prototype); |