feat(wallpapers-bing): restore preferred-region picker

wallpapers-bing/wallpapers_bing.vala

@@ -2,6 +2,7 @@ using GLib;
 using Gtk;
 using Gee;
 using Singularity;
+using Singularity.Widgets;
 using Peas;
 
 [ModuleInit]
@@ -33,6 +34,15 @@ namespace WallpapersBing {
         public bool requires_credentials { get { return false; } }
         public bool supports_search { get { return false; } }
         public Provider() { base("/usr/local/bin/ncz-wallpaper-bing"); }
+        public async string market_list(Cancellable? cancel) throws Error {
+            return yield command({helper, "markets"}, cancel, 30);
+        }
+        public async string preferred_market(Cancellable? cancel) throws Error {
+            return (yield command({helper, "market"}, cancel, 30)).strip();
+        }
+        public async void set_preferred_market(string market, Cancellable? cancel) throws Error {
+            yield command({helper, "market", market}, cancel, 30);
+        }
         public async ArrayList<WallpaperProviderChoice> choices(string index, Cancellable? cancel) throws Error {
             var loaded = WallpaperBing.markets(yield command({helper, "markets"}, cancel, 30));
             // The helper is expected to always advertise the combined view
@@ -64,6 +74,7 @@ namespace WallpapersBing {
 public class WallpapersBingPlugin : Object, Singularity.Plugin {
     private PluginContext context;
     private WallpapersBing.Provider? provider;
+    private const string BING_MARKETS_ID_ALL = "all";
 
     public void activate(PluginContext ctx) {
         this.context = ctx;
@@ -84,6 +95,47 @@ public class WallpapersBingPlugin : Object, Singularity.Plugin {
         lbl.wrap = true;
         lbl.xalign = 0;
         box.append(lbl);
+        load_bing_markets.begin(box);
         return box;
     }
+
+    private async void load_bing_markets(Box box) {
+        if (provider == null) return;
+        var bing_markets_options = new Gee.ArrayList<Singularity.Core.AppSettingOption>();
+        bing_markets_options.add(new Singularity.Core.AppSettingOption() { id = BING_MARKETS_ID_ALL, label = _("All Markets, No Preference") });
+        string bing_markets_current = BING_MARKETS_ID_ALL;
+        try {
+            foreach (string line in (yield provider.market_list(null)).split("\n")) {
+                string[] columns = line.split("\t");
+                if (columns.length < 2 || columns[0].strip() == "") continue;
+                bing_markets_options.add(new Singularity.Core.AppSettingOption() {
+                    id = columns[0].strip(), label = columns[1].strip() });
+            }
+            string configured = yield provider.preferred_market(null);
+            if (configured.ascii_down() != BING_MARKETS_ID_ALL) {
+                foreach (var option in bing_markets_options) {
+                    if (option.id == configured) bing_markets_current = configured;
+                }
+            }
+        } catch (Error e) {
+            warning("wallpapers-bing: could not load market settings: %s", e.message);
+            return;
+        }
+        var bing_markets_row = new SelectionRow.with_options(_("Bing Preferred Region"), bing_markets_options,
+            bing_markets_current);
+        bing_markets_row.subtitle = _("Bing always combines every region's photo of the day; this only picks whose caption and credit win when the same photo is shared");
+        bing_markets_row.selected.connect((id) => {
+            persist_bing_market.begin(id);
+        });
+        box.append(bing_markets_row);
+    }
+
+    private async void persist_bing_market(string market) {
+        if (provider == null) return;
+        try {
+            yield provider.set_preferred_market(market, null);
+        } catch (Error e) {
+            warning("wallpapers-bing: could not save preferred market: %s", e.message);
+        }
+    }
 }