1 files changed, 17 insertions, 2 deletions

diff --git a/desktop/Prefs.qml b/desktop/Prefs.qml
index d56b34c..c342aba 100644
--- a/desktop/Prefs.qml
+++ b/desktop/Prefs.qml
@@ -32,13 +32,26 @@ Singleton {
     // Visible control tiles, in display order.
     property var controls: Controls.defaults()
 
+    // The public IP the user pinned from the performance panel; "" for none.
+    property string pinnedIp: ""
+
     // The whole parsed object, so a write keeps keys this version does not
     // know about.
     property var doc: ({})
 
     function setControls(list) {
         root.controls = Controls.normalize(list);
-        const out = Object.assign({}, root.doc, { controls: root.controls });
+        root.write(Object.assign({}, root.doc, { controls: root.controls }));
+    }
+
+    function setPinnedIp(ip) {
+        if (ip === root.pinnedIp) return;
+        root.pinnedIp = ip;
+        const perf = Object.assign({}, root.doc.perf, { pinnedIp: ip });
+        root.write(Object.assign({}, root.doc, { perf: perf }));
+    }
+
+    function write(out) {
         root.doc = out;
         file.setText(JSON.stringify(out, null, 2) + "\n");
     }
@@ -53,6 +66,8 @@ Singleton {
         const next = "controls" in parsed ? Controls.normalize(parsed.controls) : Controls.defaults();
         // The watch also fires on our own write; compare so it is a no-op.
         if (JSON.stringify(next) !== JSON.stringify(root.controls)) root.controls = next;
+        const pin = parsed.perf && typeof parsed.perf.pinnedIp === "string" ? parsed.perf.pinnedIp : "";
+        if (pin !== root.pinnedIp) root.pinnedIp = pin;
     }
 
     FileView {
@@ -67,6 +82,6 @@ Singleton {
         onFileChanged: reload()
         onLoaded: root.reparse()
         // Missing file: the defaults, and nothing written.
-        onLoadFailed: { root.doc = {}; root.controls = Controls.defaults(); }
+        onLoadFailed: { root.doc = {}; root.controls = Controls.defaults(); root.pinnedIp = ""; }
     }
 }