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/*
* Copyright 2019 elementary, Inc. (https://elementary.io)
*
* This program or library is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA.
*/
/**
* LauncherEntry implementation from the Granite library.
* This file is used if Granite isn't used to compile GoForIt!.
* It doesn't pull in additional dependencies and doesn't depend on the rest of
* Granite.
*/
namespace Builtin.Granite.Services {
/**
* Utilities for Applications
*/
namespace Application {
[DBus (name = "com.canonical.Unity.LauncherEntry")]
private class UnityLauncherEntry : GLib.Object {
private static AsyncMutex? instance_mutex = null;
private static UnityLauncherEntry instance;
internal static async unowned UnityLauncherEntry get_instance () throws GLib.Error {
if (instance_mutex == null) {
instance_mutex = new AsyncMutex ();
}
yield instance_mutex.lock ();
if (instance != null) {
instance_mutex.unlock ();
return instance;
}
weak GLib.Application app = GLib.Application.get_default ();
if (app == null) {
instance_mutex.unlock ();
throw new GLib.IOError.FAILED ("No GApplication has been defined");
}
if (app.application_id == null) {
instance_mutex.unlock ();
throw new GLib.IOError.FAILED ("The GApplication has no application-id defined");
}
var local_instance = new UnityLauncherEntry ();
local_instance.app_uri = "application://%s.desktop".printf (app.application_id);
var object_path = new GLib.ObjectPath (
"/com/canonical/unity/launcherentry/%u".printf (local_instance.app_uri.hash ())
);
try {
var session_connection = yield GLib.Bus.@get (GLib.BusType.SESSION, null);
session_connection.register_object (object_path, local_instance);
instance = local_instance;
} catch (GLib.Error e) {
instance_mutex.unlock ();
throw e;
}
instance_mutex.unlock ();
return instance;
}
construct {
properties = new GLib.HashTable<string,GLib.Variant> (str_hash, str_equal);
properties["urgent"] = new GLib.Variant.boolean (false);
properties["count"] = new GLib.Variant.int64 (0);
properties["count-visible"] = new GLib.Variant.boolean (false);
properties["progress"] = new GLib.Variant.double (0.0);
properties["progress-visible"] = new GLib.Variant.boolean (false);
}
private string app_uri;
private GLib.HashTable<string,GLib.Variant> properties;
internal void set_app_property (string property, GLib.Variant var) {
var updated_properties = new GLib.HashTable<string,GLib.Variant> (str_hash, str_equal);
updated_properties[property] = var;
properties[property] = var;
update (app_uri, updated_properties);
}
public signal void update (string app_uri, GLib.HashTable<string,GLib.Variant> properties);
public GLib.HashTable<string,Variant> query () throws GLib.Error {
return properties;
}
}
/**
* Set the badge count, usually visible with the dock in the desktop. There is no guarantee
* that the target environment supports it in any way.
* For it to be visible, one has to make sure to call set_badge_visible().
*/
public static async bool set_badge (int64 count) throws GLib.Error {
unowned UnityLauncherEntry instance = yield UnityLauncherEntry.get_instance ();
instance.set_app_property ("count", new GLib.Variant.int64 (count));
return true;
}
/**
* Set the badge visibility.
*/
public static async bool set_badge_visible (bool visible) throws GLib.Error {
unowned UnityLauncherEntry instance = yield UnityLauncherEntry.get_instance ();
instance.set_app_property ("count-visible", new GLib.Variant.boolean (visible));
return true;
}
/**
* Set the progress of the application, usually visible with the dock in the desktop.
* There is no guarantee that the target environment supports it in any way.
* For it to be visible, one has to make sure to call set_progress_visible().
*/
public static async bool set_progress (double progress) throws GLib.Error {
unowned UnityLauncherEntry instance = yield UnityLauncherEntry.get_instance ();
instance.set_app_property ("progress", new GLib.Variant.double (progress));
return true;
}
/**
* Set the progress visibility.
*/
public static async bool set_progress_visible (bool visible) throws GLib.Error {
unowned UnityLauncherEntry instance = yield UnityLauncherEntry.get_instance ();
instance.set_app_property ("progress-visible", new GLib.Variant.boolean (visible));
return true;
}
}
/**
* AsyncMutex implementation with Gee.ArrayQueue replaced with GLib.Queue
*/
internal class AsyncMutex {
private class Callback {
public SourceFunc callback;
public Callback (owned SourceFunc cb) {
callback = (owned)cb;
}
}
private GLib.Queue<Callback> callbacks;
private bool locked;
public AsyncMutex () {
locked = false;
callbacks = new GLib.Queue<Callback> ();
}
public async void lock () {
while (locked) {
SourceFunc cb = lock.callback;
callbacks.push_head (new Callback ((owned)cb));
yield;
}
locked = true;
}
public void unlock () {
locked = false;
var callback = callbacks.pop_head ();
if (callback != null) {
Idle.add ((owned)callback.callback);
}
}
}
}
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