saving note detail

src/public/javascripts/widgets/note_title.js

@@ -3,6 +3,7 @@ import utils from "../services/utils.js";
 import protectedSessionHolder from "../services/protected_session_holder.js";
 import treeCache from "../services/tree_cache.js";
 import server from "../services/server.js";
+import SpacedUpdate from "../services/spaced_update.js";
 
 const TPL = `
 <div class="note-title-container">
@@ -24,43 +25,6 @@ const TPL = `
     <input autocomplete="off" value="" class="note-title" tabindex="1">
 </div>`;
 
-class SpacedUpdate {
-    constructor(updater, updateInterval = 1000) {
-        this.updater = updater;
-        this.lastUpdated = Date.now();
-        this.changed = false;
-        this.updateInterval = updateInterval;
-    }
-
-    scheduleUpdate() {
-        this.changed = true;
-        setTimeout(() => this.triggerUpdate())
-    }
-
-    async updateNowIfNecessary() {
-        if (this.changed) {
-            this.changed = false;
-            await this.updater();
-        }
-    }
-
-    triggerUpdate() {
-        if (!this.changed) {
-            return;
-        }
-
-        if (Date.now() - this.lastUpdated > this.updateInterval) {
-            this.updater();
-            this.lastUpdated = Date.now();
-            this.changed = false;
-        }
-        else {
-            // update not triggered but changes are still pending so we need to schedule another check
-            this.scheduleUpdate();
-        }
-    }
-}
-
 export default class NoteTitleWidget extends TabAwareWidget {
     constructor(appContext) {
         super(appContext);