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/* -*- mode: js; js-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Part of this file comes from gnome-shell-extensions:
* http://git.gnome.org/browse/gnome-shell-extensions/
*/
const Clutter = imports.gi.Clutter;
const Gettext = imports.gettext;
const Gio = imports.gi.Gio;
const Lang = imports.lang;
const Config = imports.misc.config;
const ExtensionUtils = imports.misc.extensionUtils;
/**
* initTranslations:
* @domain: (optional): the gettext domain to use
*
* Initialize Gettext to load translations from extensionsdir/locale.
* If @domain is not provided, it will be taken from metadata['gettext-domain']
*/
function initTranslations(domain) {
let extension = ExtensionUtils.getCurrentExtension();
domain = domain || extension.metadata['gettext-domain'];
// Check if this extension was built with "make zip-file", and thus
// has the locale files in a subfolder
// otherwise assume that extension has been installed in the
// same prefix as gnome-shell
let localeDir = extension.dir.get_child('locale');
if (localeDir.query_exists(null))
Gettext.bindtextdomain(domain, localeDir.get_path());
else
Gettext.bindtextdomain(domain, Config.LOCALEDIR);
}
/**
* getSettings:
* @schema: (optional): the GSettings schema id
*
* Builds and return a GSettings schema for @schema, using schema files
* in extensionsdir/schemas. If @schema is not provided, it is taken from
* metadata['settings-schema'].
*/
function getSettings(schema) {
let extension = ExtensionUtils.getCurrentExtension();
schema = schema || extension.metadata['settings-schema'];
const GioSSS = Gio.SettingsSchemaSource;
// Check if this extension was built with "make zip-file", and thus
// has the schema files in a subfolder
// otherwise assume that extension has been installed in the
// same prefix as gnome-shell (and therefore schemas are available
// in the standard folders)
let schemaDir = extension.dir.get_child('schemas');
let schemaSource;
if (schemaDir.query_exists(null))
schemaSource = GioSSS.new_from_directory(schemaDir.get_path(),
GioSSS.get_default(),
false);
else
schemaSource = GioSSS.get_default();
let schemaObj = schemaSource.lookup(schema, true);
if (!schemaObj)
throw new Error('Schema ' + schema + ' could not be found for extension '
+ extension.metadata.uuid + '. Please check your installation.');
return new Gio.Settings({
settings_schema: schemaObj
});
}
/**
* Simplify global signals and function injections handling
* abstract class
*/
const BasicHandler = new Lang.Class({
Name: 'DashToDock.BasicHandler',
_init: function() {
this._storage = new Object();
},
add: function(/* unlimited 3-long array arguments */) {
// Convert arguments object to array, concatenate with generic
let args = Array.concat('generic', Array.slice(arguments));
// Call addWithLabel with ags as if they were passed arguments
this.addWithLabel.apply(this, args);
},
destroy: function() {
for( let label in this._storage )
this.removeWithLabel(label);
},
addWithLabel: function(label /* plus unlimited 3-long array arguments*/) {
if (this._storage[label] == undefined)
this._storage[label] = new Array();
// Skip first element of the arguments
for (let i = 1; i < arguments.length; i++) {
this._storage[label].push( this._create(arguments[i]));
}
},
removeWithLabel: function(label) {
if (this._storage[label]) {
for (let i = 0; i < this._storage[label].length; i++)
this._remove(this._storage[label][i]);
delete this._storage[label];
}
},
// Virtual methods to be implemented by subclass
/**
* Create single element to be stored in the storage structure
*/
_create: function(item) {
throw new Error('no implementation of _create in ' + this);
},
/**
* Correctly delete single element
*/
_remove: function(item) {
throw new Error('no implementation of _remove in ' + this);
}
});
/**
* Manage global signals
*/
const GlobalSignalsHandler = new Lang.Class({
Name: 'DashToDock.GlobalSignalHandler',
Extends: BasicHandler,
_create: function(item) {
let object = item[0];
let event = item[1];
let callback = item[2]
let id = object.connect(event, callback);
return [object, id];
},
_remove: function(item) {
item[0].disconnect(item[1]);
}
});
/**
* Manage function injection: both instances and prototype can be overridden
* and restored
*/
const InjectionsHandler = new Lang.Class({
Name: 'DashToDock.InjectionsHandler',
Extends: BasicHandler,
_create: function(item) {
let object = item[0];
let name = item[1];
let injectedFunction = item[2];
let original = object[name];
object[name] = injectedFunction;
return [object, name, injectedFunction, original];
},
_remove: function(item) {
let object = item[0];
let name = item[1];
let original = item[3];
object[name] = original;
}
});
/**
* Return the actual position reverseing left and right in rtl
*/
function getPosition(settings) {
let position = settings.get_enum('dock-position');
if (Clutter.get_default_text_direction() == Clutter.TextDirection.RTL) {
if (position == St.Side.LEFT)
position = St.Side.RIGHT;
else if (position == St.Side.RIGHT)
position = St.Side.LEFT;
}
return position;
}
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