Download from URL now automatically fills with URL in clipboard (#9282)

Autofills URL in clipboard when downloading from URL
Fixes koppor#535

CHANGELOG.md

@@ -45,6 +45,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We fixed an issue where a message about changed metadata would occur on saving although nothing changed. [#9159](https://github.com/JabRef/jabref/issues/9159)
 - When adding or editing a subgroup it is placed w.r.t. to alphabetical ordering rather than at the end. [koppor#577](https://github.com/koppor/jabref/issues/577)
 - We modified the Directory of Open Access Books (DOAB) fetcher so that it will now also fetch the ISBN when possible. [#8708](https://github.com/JabRef/jabref/issues/8708)
+- Download from URL now automatically fills with URL from clipboard. [koppor#535](https://github.com/koppor/jabref/issues/535)
 
 ### Fixed
 

src/main/java/org/jabref/gui/fieldeditors/LinkedFilesEditorViewModel.java

@@ -16,6 +16,7 @@
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 
+import org.jabref.gui.ClipBoardManager;
 import org.jabref.gui.DialogService;
 import org.jabref.gui.autocompleter.SuggestionProvider;
 import org.jabref.gui.externalfiles.AutoSetFileLinksUtil;
@@ -214,8 +215,15 @@ public void fetchFulltext() {
     }
 
     public void addFromURL() {
-        Optional<String> urlText = dialogService.showInputDialogAndWait(
-                Localization.lang("Download file"), Localization.lang("Enter URL to download"));
+        String clipText = ClipBoardManager.getContents();
+        Optional<String> urlText;
+        if (clipText.startsWith("http://") || clipText.startsWith("https://") || clipText.startsWith("ftp://")) {
+            urlText = dialogService.showInputDialogWithDefaultAndWait(
+                    Localization.lang("Download file"), Localization.lang("Enter URL to download"), clipText);
+        } else {
+            urlText = dialogService.showInputDialogAndWait(
+                    Localization.lang("Download file"), Localization.lang("Enter URL to download"));
+        }
         if (urlText.isPresent()) {
             try {
                 URL url = new URL(urlText.get());