TinyMCE/Sketch: Popup does not close

miniPaint/sketch.js

@@ -43,7 +43,7 @@ $(document).ready(function() {
 					}
 				}
 				// Close window.
-				$(".modal .close", top.document).click();
+				findAndCloseModal(top);
 			}, 200);
         });
     }, 200);
@@ -73,3 +73,37 @@ function open_image(image){
 	};
 	Layers.insert(new_layer);
 }
+
+/**
+ * This function is designed to search for a close button within a modal dialog present in the current window
+ * and any nested iframes. If the button is found, it programmatically triggers a click event on it to close the modal.
+ *
+ * @param currentWindow The window object from which to start the search
+ * @return {boolean}
+ */
+function findAndCloseModal(currentWindow) {
+	// Check if the current window's document contains the close button.
+	const closeButton = $(currentWindow.document).find('.modal .close, .modal .btn-close');
+
+	if (closeButton.length) {
+		// If the close button is found, trigger the click event.
+		closeButton.trigger('click');
+		return true;
+	}
+
+	// If the close button is not found, check the iframes.
+	const iframes = currentWindow.document.getElementsByTagName('iframe');
+
+	for (let i = 0; i < iframes.length; i++) {
+		// Get the content window of the iframe.
+		const iframeWindow = iframes[i].contentWindow;
+
+		// Recursively call the function on the iframe window.
+		if (findAndCloseModal(iframeWindow)) {
+			// If the button was found in the iframe, stop searching.
+			return true;
+		}
+	}
+
+	return false;
+}