[gnome-maps/wip/routing2: 9/10] Split out geocode to its own service

[Mattias Bengtsson <mattiasb src gnome org>]

commit 249d064ec363443b162f8a327a940e43e14a0148
Author: Mattias Bengtsson <mattias jc bengtsson gmail com>
Date:   Wed Jun 11 01:41:05 2014 +0200

    Split out geocode to its own service
    
    This is needed for when you want to perform a geocode query without
    access to MapView.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=728695

 src/application.js              |   13 +++++++--
 src/geocodeService.js           |   57 +++++++++++++++++++++++++++++++++++++++
 src/gnome-maps.js.gresource.xml |    1 +
 src/mapView.js                  |   24 ----------------
 src/placeEntry.js               |    4 ++-
 5 files changed, 71 insertions(+), 28 deletions(-)
---
diff --git a/src/application.js b/src/application.js
index 01cb7a1..36526d2 100644
--- a/src/application.js
+++ b/src/application.js
@@ -35,6 +35,7 @@ const GLib = imports.gi.GLib;
 const Main = imports.main;
 const Format = imports.format;
 const Geoclue = imports.geoclue;
+const GeocodeService = imports.geocodeService;
 const MainWindow = imports.mainWindow;
 const Notification = imports.notification;
 const NotificationManager = imports.notificationManager;
@@ -51,6 +52,7 @@ let placeStore = null;
 let notificationManager = null;
 let routeService = null;
 let geoclue = null;
+let geocodeService = null;
 
 const Application = new Lang.Class({
     Name: 'Application',
@@ -97,9 +99,7 @@ const Application = new Lang.Class({
         Utils.loadStyleSheet(Gio.file_new_for_uri('resource:///org/gnome/maps/application.css'));
 
         application = this;
-        settings = new Settings.Settings('org.gnome.maps');
-        routeService = new RouteService.GraphHopper();
-        geoclue =  new Geoclue.Geoclue();
+        this._initServices();
 
         Utils.initActions(this, [{
             properties: { name: 'quit' },
@@ -110,6 +110,13 @@ const Application = new Lang.Class({
         this._initAppMenu();
     },
 
+    _initServices: function() {
+        settings       = new Settings.Settings('org.gnome.maps');
+        routeService   = new RouteService.GraphHopper();
+        geoclue        = new Geoclue.Geoclue();
+        geocodeService = new GeocodeService.GeocodeService();
+    },
+
     _createWindow: function() {
         if (this._mainWindow)
             return;
diff --git a/src/geocodeService.js b/src/geocodeService.js
new file mode 100644
index 0000000..434afd6
--- /dev/null
+++ b/src/geocodeService.js
@@ -0,0 +1,57 @@
+/* -*- Mode: JS2; indent-tabs-mode: nil; js2-basic-offset: 4 -*- */
+/* vim: set et ts=4 sw=4: */
+/*
+ * Copyright (c) 2013, 2014 Red Hat, Inc., Mattias Bengtsson
+ *
+ * gnome-maps is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * gnome-maps 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 General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with gnome-maps; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
+ *         Mattias Bengtsson <mattias jc bengtsson gmail com>
+ */
+
+const Geocode = imports.gi.GeocodeGlib;
+const Lang = imports.lang;
+
+const Application = imports.application;
+
+const GeocodeService = new Lang.Class({
+    Name: 'GeocodeService',
+
+    _init: function() { },
+
+    search: function(string, bbox, callback) {
+        let answerCount = Application.settings.get('max-search-results');
+        let forward     = Geocode.Forward.new_for_string(string);
+
+        if (bbox) {
+            forward.search_area = new Geocode.BoundingBox({
+                top:    bbox.top,
+                left:   bbox.left,
+                bottom: bbox.bottom,
+                right:  bbox.right
+            });
+        }
+        forward.bounded = false;
+        forward.set_answer_count(answerCount);
+        forward.search_async(null, function(forward, res) {
+            try {
+                let places = forward.search_finish(res);
+                callback(places);
+            } catch (e) {
+                callback(null);
+            }
+        });
+    }
+});
diff --git a/src/gnome-maps.js.gresource.xml b/src/gnome-maps.js.gresource.xml
index 17d486d..ca842c7 100644
--- a/src/gnome-maps.js.gresource.xml
+++ b/src/gnome-maps.js.gresource.xml
@@ -6,6 +6,7 @@
     <file>contextMenu.js</file>
     <file>epaf.js</file>
     <file>geoclue.js</file>
+    <file>geocodeService.js</file>
     <file>http.js</file>
     <file>layersPopover.js</file>
     <file>main.js</file>
diff --git a/src/mapView.js b/src/mapView.js
index 5129a40..157799b 100644
--- a/src/mapView.js
+++ b/src/mapView.js
@@ -115,30 +115,6 @@ const MapView = new Lang.Class({
         this.view.set_map_source(source);
     },
 
-    geocodeSearch: function(searchString, searchCompleteCallback) {
-        let forward = Geocode.Forward.new_for_string(searchString);
-        let places = [];
-        let answerCount = Application.settings.get('max-search-results');
-        let bbox = this.view.get_bounding_box();
-
-        forward.search_area = new Geocode.BoundingBox({
-            top: bbox.top,
-            left: bbox.left,
-            bottom: bbox.bottom,
-            right: bbox.right
-        });
-        forward.bounded = false;
-        forward.set_answer_count(answerCount);
-        forward.search_async (null, (function(forward, res) {
-            try {
-                places = forward.search_finish(res);
-            } catch (e) {
-                places = null;
-            }
-            searchCompleteCallback(places);
-        }).bind(this));
-    },
-
     ensureLocationsVisible: function(locations) {
         let bbox = new Champlain.BoundingBox({ left:   180,
                                                right: -180,
diff --git a/src/placeEntry.js b/src/placeEntry.js
index a2b1af9..6bf93d4 100644
--- a/src/placeEntry.js
+++ b/src/placeEntry.js
@@ -114,8 +114,10 @@ const PlaceEntry = new Lang.Class({
             return;
         }
 
+        let bbox = this._mapView.view.get_bounding_box();
+
         this._popover.showSpinner();
-        this._mapView.geocodeSearch(this.text, (function(places) {
+        Application.geocodeService.search(this.text, bbox, (function(places) {
             if (!places) {
                 this.place = null;
                 this._popover.hide();