1 files changed, 44 insertions, 2 deletions
diff --git a/desktop/island/SceneIcons.qml b/desktop/island/SceneIcons.qml
index 44bcf9c..b8fe6b8 100644
--- a/desktop/island/SceneIcons.qml
+++ b/desktop/island/SceneIcons.qml
@@ -27,11 +27,53 @@ Singleton {
 
     property var map: Icons.defaults
 
+    // The settings page's draft, null when not editing. Every edit reassigns
+    // draft so the page's bindings fire; Save normalizes and writes.
+    property var draft: null
+    property bool dirty: false
+    readonly property bool valid: draft !== null && Icons.validMap(draft)
+    // Emitted when the draft is dropped, so the page rebuilds its fields:
+    // TextInput breaks its text binding on user edit, so a Discard would
+    // otherwise leave the old glyph on screen.
+    signal reset
+
     function iconFor(name) { return Icons.iconFor(root.map, name); }
+    function validGlyph(s) { return Icons.validGlyph(s); }
+
+    function begin() {
+        if (!root.dirty)
+            root.draft = Icons.parse(Icons.serialize(root.map));
+    }
+
+    function editScene(name, text) {
+        if (!root.draft) root.begin();
+        const scenes = Object.assign({}, root.draft.scenes);
+        if (text === "") delete scenes[name];
+        else scenes[name] = text;
+        root.draft = Object.assign({}, root.draft, { scenes: scenes });
+        root.dirty = true;
+    }
+
+    function editGeneric(text) {
+        if (!root.draft) root.begin();
+        root.draft = Object.assign({}, root.draft, { generic: text });
+        root.dirty = true;
+    }
+
+    function discard() {
+        root.draft = null;
+        root.dirty = false;
+        root.reset();
+    }
 
     function save(map) {
-        root.map = map;
-        fv.setText(Icons.serialize(map));
+        if (!map) return;
+        const out = Icons.normalize(map);
+        root.map = out;
+        fv.setText(Icons.serialize(out));
+        root.draft = null;
+        root.dirty = false;
+        root.reset();
     }
 
     FileView {