Add getDishTitle function

src/core/Chef.mjs

@@ -168,6 +168,18 @@ class Chef {
         return await newDish.get(type);
     }
 
+    /**
+     * Gets the title of a dish and returns it
+     *
+     * @param {Dish} dish
+     * @param {number} [maxLength=100]
+     * @returns {string}
+     */
+    async getDishTitle(dish, maxLength=100) {
+        const newDish = new Dish(dish);
+        return await newDish.getTitle(maxLength);
+    }
+
 }
 
 export default Chef;

src/core/ChefWorker.js

@@ -68,6 +68,9 @@ self.addEventListener("message", function(e) {
         case "getDishAs":
             getDishAs(r.data);
             break;
+        case "getDishTitle":
+            getDishTitle(r.data);
+            break;
         case "docURL":
             // Used to set the URL of the current document so that scripts can be
             // imported into an inline worker.
@@ -158,6 +161,26 @@ async function getDishAs(data) {
 }
 
 
+/**
+ * Gets the dish title
+ *
+ * @param {object} data
+ * @param {Dish} data.dish
+ * @param {number} data.maxLength
+ * @param {number} data.id
+ */
+async function getDishTitle(data) {
+    const title = await self.chef.getDishTitle(data.dish, data.maxLength);
+    self.postMessage({
+        action: "dishReturned",
+        data: {
+            value: title,
+            id: data.id
+        }
+    });
+}
+
+
 /**
  * Calculates highlight offsets if possible.
  *

src/core/Dish.mjs

@@ -141,6 +141,32 @@ class Dish {
     }
 
 
+    /**
+     * Returns the title of the data up to the specified length
+     *
+     * @param {number} maxLength - The maximum title length
+     * @returns {string}
+     */
+    async getTitle(maxLength) {
+        let title = "";
+
+        // LIST OF FILES - Say e.g. "3 files"
+        switch (this.type) {
+            case Dish.FILE:
+                title = this.value.name;
+                break;
+            case Dish.LIST_FILE:
+                title = `${this.value.length} file(s)`;
+                break;
+            default:
+                title = await this.get("string");
+        }
+
+        title = title.slice(0, maxLength);
+        return title;
+    }
+
+
     /**
      * Translates the data to the given type format.
      *