note about keeping historical buttons

main.js

@@ -4,32 +4,23 @@ module.exports = class RibbonClasp extends Plugin {
   async onload() {
     this.settings = Object.assign({ order: [] }, await this.loadData());
     this.enforcing = false;
+    this.alive = true;
+    this.register(() => { this.alive = false; });
     // icons can attach within milliseconds of each other on startup
     // (resetTimer, or it fires 200ms after the first one instead of the last)
     this.debouncedEnforce = debounce(() => this.enforceOrder(), 200, true);
+    // disconnecting the observer doesn't stop an already-scheduled call
+    this.register(() => this.debouncedEnforce.cancel());
 
     this.app.workspace.onLayoutReady(() => {
       // not tied to our lifecycle; still fires if we were disabled during boot
-      if (this.unloaded) return;
+      if (!this.alive) return;
       this.patchRibbon();
       this.enforceOrder();
       this.observeRibbon();
     });
   }
 
-  onunload() {
-    this.unloaded = true;
-    this.observer?.disconnect();
-    // disconnect doesn't stop an already-scheduled call
-    this.debouncedEnforce?.cancel();
-
-    const ribbon = this.getRibbon();
-    // don't restore over someone else's patch, just go inert instead
-    if (ribbon && ribbon.onChange === this.wrapper) {
-      ribbon.onChange = this.originalOnChange;
-    }
-  }
-
   getRibbon() {
     return this.app.workspace.leftRibbon ?? null;
   }
@@ -44,8 +35,9 @@ module.exports = class RibbonClasp extends Plugin {
     const containerEl = this.getRibbonContainerEl(ribbon);
     if (!containerEl) return;
 
-    this.observer = new MutationObserver(() => this.debouncedEnforce());
-    this.observer.observe(containerEl, { childList: true });
+    const observer = new MutationObserver(() => this.debouncedEnforce());
+    observer.observe(containerEl, { childList: true });
+    this.register(() => observer.disconnect());
   }
 
   // hook the ribbon's own onChange so drags and hide/show toggles update
@@ -57,13 +49,18 @@ module.exports = class RibbonClasp extends Plugin {
     const original = ribbon.onChange.bind(ribbon);
     this.originalOnChange = original;
 
-    this.wrapper = (save) => {
+    const wrapper = (save) => {
       original(save);
-      if (save && !this.enforcing && !this.unloaded) {
+      if (save && !this.enforcing && this.alive) {
         this.recordOrder(ribbon);
       }
     };
-    ribbon.onChange = this.wrapper;
+    ribbon.onChange = wrapper;
+
+    this.register(() => {
+      // don't restore over someone else's patch, just go inert instead
+      if (ribbon.onChange === wrapper) ribbon.onChange = original;
+    });
   }
 
   enforceOrder() {
@@ -76,13 +73,12 @@ module.exports = class RibbonClasp extends Plugin {
       return;
     }
 
+    // anything we haven't seen before sorts to the bottom, in the order it came in
+    const rank = new Map(order.map((id, i) => [id, i]));
     const sorted = [...ribbon.items].sort((a, b) => {
-      const ia = order.indexOf(a.id);
-      const ib = order.indexOf(b.id);
-      if (ia === -1 && ib === -1) return 0;
-      if (ia === -1) return 1;
-      if (ib === -1) return -1;
-      return ia - ib;
+      const ia = rank.get(a.id) ?? Infinity;
+      const ib = rank.get(b.id) ?? Infinity;
+      return ia === ib ? 0 : ia - ib;
     });
 
     const changed = sorted.some((item, i) => ribbon.items[i] !== item);
@@ -100,13 +96,25 @@ module.exports = class RibbonClasp extends Plugin {
     this.mergeNewItems(ribbon);
   }
 
+  // a drag saves, and the dom change it makes wakes the observer up, which can
+  // save again before the first one has finished writing. queue them instead.
+  save() {
+    this.writing = Promise.resolve(this.writing)
+      .catch(() => {})
+      .then(() => this.saveData(this.settings));
+    return this.writing;
+  }
+
   recordOrder(ribbon) {
     const ids = ribbon.items.map((item) => item.id);
     if (this.sameOrder(ids, this.settings.order)) return;
     this.settings.order = ids;
-    this.saveData(this.settings);
+    this.save();
   }
 
+  // ids of plugins that are gone stay in the list on purpose -- nothing prunes
+  // them, so reinstalling one puts its icon back where it used to be
+  //
   // only append icons we haven't seen before instead of overwriting the
   // whole order -- enforceOrder() runs during boot too, before every
   // plugin has attached its icon yet, and a full overwrite there was
@@ -116,7 +124,7 @@ module.exports = class RibbonClasp extends Plugin {
     const newIds = ribbon.items.map((item) => item.id).filter((id) => !known.has(id));
     if (newIds.length === 0) return;
     this.settings.order = [...this.settings.order, ...newIds];
-    this.saveData(this.settings);
+    this.save();
   }
 
   sameOrder(a, b) {

manifest.json

@@ -1,7 +1,7 @@
 {
   "id": "ribbon-clasp",
   "name": "Ribbon Clasp",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "minAppVersion": "1.1.0",
   "description": "Stops the left ribbon icons from reshuffling themselves.",
   "author": "bdeshi",

versions.json

@@ -1,3 +1,4 @@
 {
-  "1.0.0": "1.1.0"
+  "1.0.0": "1.1.0",
+  "1.1.0": "1.1.0"
 }