[gnome-weather/mcatanzaro/deduplicate] Deduplicate cities

[Michael Catanzaro <mcatanzaro src gnome org>]

commit eea7b40a51768adc3f7b2cf468d18484e26258ee
Author: Michael Catanzaro <mcatanzaro gnome org>
Date:   Sun Mar 22 19:42:55 2020 -0500

    Deduplicate cities
    
    We should not show the same city four times in a row in the locations
    popover, nor should we save it multiple times in gsettings.

 src/shared/world.js | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/src/shared/world.js b/src/shared/world.js
index 1c7d8c6..17c3cad 100644
--- a/src/shared/world.js
+++ b/src/shared/world.js
@@ -230,6 +230,12 @@ var WorldModel = GObject.registerClass({
     }
 
     _addLocationInternal(newLocation, isCurrentLocation) {
+        for (let i = 0; i < this._infoList.length; i++) {
+            let info = this._infoList[i];
+            if (info.get_location().equal(newLocation))
+                return info;
+        }
+
         let info = new GWeather.Info({ location: newLocation,
                                        enabled_providers: this._providers });
         this._addInfoInternal(info, isCurrentLocation);