Just added uploading via drag/drop

public/scripts/extensions/gallery/index.js

@@ -3,6 +3,7 @@ import {
     this_chid,
     characters,
     callPopup,
+    getRequestHeaders,
 } from "../../../script.js";
 import { selected_group } from "../../group-chats.js";
 import { loadFileToDocument } from "../../utils.js";
@@ -34,9 +35,54 @@ async function getGalleryItems(url) {
 }
 
 /**
- * Displays a character gallery. The gallery is initialized using the nanogallery2 library. 
- * This function takes care of preparing the gallery items, loading necessary resources,
- * and ensuring body position is correctly set.
+ * Initializes a gallery using the provided items and sets up the drag-and-drop functionality.
+ * It uses the nanogallery2 library to display the items and also initializes 
+ * event listeners to handle drag-and-drop of files onto the gallery.
+ * 
+ * @param {Array<Object>} items - An array of objects representing the items to display in the gallery.
+ * @param {string} url - The URL to use when a file is dropped onto the gallery for uploading.
+ * @returns {Promise<void>} - Promise representing the completion of the gallery initialization.
+ */
+async function initGallery(items, url) {
+    $("#my-gallery").nanogallery2({
+        items: items,
+        thumbnailHeight: 150,
+        thumbnailWidth: 150,
+    });
+
+    // Initialize dropzone handlers
+    const dropZone = $('#dialogue_popup');
+    dropZone.on('dragover', function (e) {
+        e.stopPropagation();  // Ensure this event doesn't propagate
+        e.preventDefault();
+        $(this).addClass('dragging');  // Add a CSS class to change appearance during drag-over
+    });
+
+    dropZone.on('dragleave', function (e) {
+        e.stopPropagation();  // Ensure this event doesn't propagate
+        $(this).removeClass('dragging');
+    });
+
+    dropZone.on('drop', function (e) {
+        e.stopPropagation();  // Ensure this event doesn't propagate
+        e.preventDefault();
+        $(this).removeClass('dragging');
+        let file = e.originalEvent.dataTransfer.files[0];
+        uploadFile(file, url);  // Added url parameter to know where to upload
+    });
+}
+
+/**
+ * Displays a character gallery using the nanogallery2 library.
+ * 
+ * This function takes care of:
+ * - Loading necessary resources for the gallery on the first invocation.
+ * - Preparing gallery items based on the character or group selection.
+ * - Handling the drag-and-drop functionality for image upload.
+ * - Displaying the gallery in a popup.
+ * - Cleaning up resources when the gallery popup is closed.
+ * 
+ * @returns {Promise<void>} - Promise representing the completion of the gallery display process.
  */
 async function showCharGallery() {
     // Load necessary files if it's the first time calling the function
@@ -62,16 +108,13 @@ async function showCharGallery() {
         const items = await getGalleryItems(url);
 
         let close = callPopup('<div id="my-gallery"></div>', "text");
+        console.log("close", close);
         if ($("body").css("position") === "fixed") {
             $("body").css("position", "static");
         }
 
-        setTimeout(() => {
-            $("#my-gallery").nanogallery2({
-                items: items,
-                thumbnailHeight: 150,
-                thumbnailWidth: 150,
-            });
+        setTimeout(async () => {
+            await initGallery(items, url); 
         }, 100);
 
         close.then(() => {
@@ -79,12 +122,75 @@ async function showCharGallery() {
             if ($("body").css("position") === "static") {
                 $("body").css("position", "fixed");
             }
+            const dropZone = $('#dialogue_popup');
+            dropZone.off('dragover dragleave drop');
         });
     } catch (err) {
         console.error(err);
     }
 }
 
+/**
+ * Uploads a given file to a specified URL.
+ * Once the file is uploaded, it provides a success message using toastr,
+ * destroys the existing gallery, fetches the latest items, and reinitializes the gallery.
+ * 
+ * @param {File} file - The file object to be uploaded.
+ * @param {string} url - The URL indicating where the file should be uploaded.
+ * @returns {Promise<void>} - Promise representing the completion of the file upload and gallery refresh.
+ */
+async function uploadFile(file, url) {
+    // Convert the file to a base64 string
+    const reader = new FileReader();
+    reader.onloadend = async function () {
+        const base64Data = reader.result;
+
+        // Create the payload
+        const payload = {
+            image: base64Data
+        };
+
+        // Add the ch_name from the provided URL (assuming it's the character name)
+        payload.ch_name = url;
+
+        try {
+            const headers = await getRequestHeaders();
+
+            // Merge headers with content-type for JSON
+            Object.assign(headers, {
+                'Content-Type': 'application/json'
+            });
+
+            const response = await fetch('/uploadimage', {
+                method: 'POST',
+                headers: headers,
+                body: JSON.stringify(payload)
+            });
+
+            if (!response.ok) {
+                throw new Error(`HTTP error! Status: ${response.status}`);
+            }
+
+            const result = await response.json();
+
+            toastr.success('File uploaded successfully. Saved at: ' + result.path);
+
+            // Refresh the gallery
+            $("#my-gallery").nanogallery2("destroy");  // Destroy old gallery
+            const newItems = await getGalleryItems(url);  // Fetch the latest items
+            initGallery(newItems, url);  // Reinitialize the gallery with new items and pass 'url'
+
+
+        } catch (error) {
+            console.error("There was an issue uploading the file:", error);
+
+            // Replacing alert with toastr error notification
+            toastr.error('Failed to upload the file.');
+        }
+    }
+    reader.readAsDataURL(file);
+}
+
 $(document).ready(function () {
     // Register an event listener
     eventSource.on("charManagementDropdown", (selectedOptionId) => {