From 8bf1b5b2c999d25f5d8a61d8ce03cde46b112b32 Mon Sep 17 00:00:00 2001
From: Matěj Cepl <mcepl@cepl.eu>
Date: Mon, 4 May 2015 23:11:21 +0200
Subject: Rewrite into object

Fix the signals business so it doesn't throw exceptions.
---
 iss_get_data.js | 133 ++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 91 insertions(+), 42 deletions(-)
 mode change 100644 => 100755 iss_get_data.js

(limited to 'iss_get_data.js')

diff --git a/iss_get_data.js b/iss_get_data.js
old mode 100644
new mode 100755
index 03c2ec5..9ba7069
--- a/iss_get_data.js
+++ b/iss_get_data.js
@@ -1,11 +1,10 @@
 #!/usr/bin/gjs
+/* jshint moz: true, multistr: true */
 /* global imports */
-
-const Json = imports.gi.Json;
-const GLib = imports.gi.GLib;
 const Gio = imports.gi.Gio;
-const Lang = imports.lang;
 const Mainloop = imports.mainloop;
+const GObject = imports.gi.GObject;
+const Lang = imports.lang;
 
 const AccuracyLevel = {
     COUNTRY: 1,
@@ -15,6 +14,8 @@ const AccuracyLevel = {
     EXACT: 8
 };
 
+const API_URL = 'http://api.open-notify.org/iss-now.json';
+
 const ManagerIface = '<node> \
   <interface name="org.freedesktop.GeoClue2.Manager"> \
     <method name="GetClient"> \
@@ -51,43 +52,91 @@ const LocationInterface = '<node> \
 </node>';
 const LocationProxy = Gio.DBusProxy.makeProxyWrapper(LocationInterface);
 
-function get_ISS_coords() {
-  const API_URL = 'http://api.open-notify.org/iss-now.json';
-  let iss_api = Gio.file_new_for_uri(API_URL);
-  iss_api.load_contents_async(null, function(iss_api, result) {
-    let iss_coords = JSON.parse(iss_api.load_contents_finish(result)[1]);
-    print(Object.keys(iss_coords));
-    print(iss_coords.toSource());
-  });
-}
-
-function onLocationUpdated(proxy, sender, [oldPath, newPath]) {
-  let geoclueLocation = new LocationProxy(Gio.DBus.system,
-                                          "org.freedesktop.GeoClue2",
-                                          newPath);
-  print('location:');
-  print('\tlatitude = ' + geoclueLocation.Latitude);
-  print('\tlongitude = ' + geoclueLocation.Longitude);
-  print('\taccuracy = ' + geoclueLocation.Accuracy);
-  print('\tdescription = ' + geoclueLocation.Description);
-  //this._updateLocation(location);
-  Mainloop.quit();
-}
-
-const _managerProxy = new ManagerProxy(Gio.DBus.system,
-  'org.freedesktop.GeoClue2', '/org/freedesktop/GeoClue2/Manager');
-
-const [clientAddr] = _managerProxy.GetClientSync();
-
-const clientProxy = new ClientProxy(Gio.DBus.system,
-    'org.freedesktop.GeoClue2', clientAddr);
-clientProxy.DesktopId = 'gnome-shell-ISS_Above';
-clientProxy.DistanceThreshold = 10000;
-clientProxy.RequestedAccuracyLevel = AccuracyLevel.EXACT;
-let updatedId = clientProxy.connectSignal('LocationUpdated',
-    onLocationUpdated);
-clientProxy.StartRemote();
-
-get_ISS_coords();
+const ISS_Above = new GObject.Class({
+  Name: 'ISS_Above',
+  Extends: GObject.Object,
+  Signals: {
+    'processed_data': {
+      param_types: [
+        // GObject.TYPE_INT
+      ]
+    }
+  },
+
+  _init: function(params) {
+    this.parent(params);
+
+    this.managerProxy = new ManagerProxy(Gio.DBus.system,
+      'org.freedesktop.GeoClue2', '/org/freedesktop/GeoClue2/Manager');
+
+    [this.clientAddr] = this.managerProxy.GetClientSync();
+    print('this.clientAddr = ' + this.clientAddr);
+
+    this.current_location = {};
+    this.iss_coords = null;
+    this.task_queue = 2; // number of async process to complete
+
+    this.clientProxy = new ClientProxy(Gio.DBus.system,
+        'org.freedesktop.GeoClue2', this.clientAddr);
+    this.clientProxy.DesktopId = 'gnome-shell-ISS_Above';
+    this.clientProxy.DistanceThreshold = 10000;
+    this.clientProxy.RequestedAccuracyLevel = AccuracyLevel.EXACT;
+    this.clientProxy.connectSignal('LocationUpdated',
+        Lang.bind(this, this.onLocationUpdated));
+    this.clientProxy.StartRemote();
+    this.connect('processed_data', Lang.bind(this, this.processResult));
+  },
+
+  run: function() {
+    this.getISScoords();
+  },
+
+  getISScoords: function () {
+    let self = this;
+    let iss_api = Gio.file_new_for_uri(API_URL);
+    iss_api.load_contents_async(null, function(iss_api, result) {
+      self.iss_coords = JSON.parse(iss_api.load_contents_finish(result)[1]);
+      print(self.iss_coords.toSource());
+      self.emit('processed_data');
+    });
+  },
+
+  onLocationUpdated: function (proxy, sender, [oldPath, newPath]) {
+    let geoclueLocation = new LocationProxy(Gio.DBus.system,
+                                            "org.freedesktop.GeoClue2",
+                                            newPath);
+    print('location:');
+    print('\tlatitude = '    + geoclueLocation.latitude);
+    print('\tlongitude = '   + geoclueLocation.longitude);
+    print('\taccuracy = '    + geoclueLocation.accuracy);
+    print('\tdescription = ' + geoclueLocation.description);
+
+    // this.current_location.latitude = geoclueLocation.latitude;
+    // this.current_location.longitude = geoclueLocation.longitude;
+    // this.current_location.accuracy = geoclueLocation.accuracy;
+    // this.current_location.description = geoclueLocation.description;
+
+    this.emit('processed_data');
+  },
+
+  processResult: function() {
+    this.task_queue--;
+    print('this.task_queue = ' + this.task_queue);
+
+    if (this.task_queue === 0) {
+      print('location:');
+      print('\tlatitude = ' + this.current_location.latitude);
+      print('\tlongitude = ' + this.current_location.longitude);
+      print('\taccuracy = ' + this.current_location.accuracy);
+      print('\tdescription = ' + this.current_location.description);
+      print('\n\niss coordinates: ' + this.iss_coords.toSource());
+
+      Mainloop.quit();
+    }
+  }
+});
+
+let client = new ISS_Above();
+client.run();
 
 Mainloop.run();
-- 
cgit