Improve user friendliness of automatically linked files

CHANGELOG.md

@@ -30,6 +30,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - The export to MS Office XML now uses the month name for the field `MonthAcessed` instead of the two digit number [#7354](https://github.com/JabRef/jabref/issues/7354)
 - We included some standalone dialogs from the options menu in the main preference dialog and fixed some visual issues in the preferences dialog. [#7384](https://github.com/JabRef/jabref/pull/7384)
 - We improved the linking of the `python3` interpreter via the shebang to dynamically use the systems default Python. Related to [JabRef-Browser-Extension #177](https://github.com/JabRef/JabRef-Browser-Extension/issues/177)
+- Automatically found pdf files now have the linking button to the far left and uses a link icon with a plus instead of a briefcase. The file name also has lowered opacity(70%) until added. [#3607](https://github.com/JabRef/jabref/issues/3607)
 - We simplified the select entry type form by splitting it into two parts ("Recommended" and "Others") based on internal usage data. [#6730](https://github.com/JabRef/jabref/issues/6730)
 
 ### Fixed

src/main/java/org/jabref/gui/Base.css

@@ -646,6 +646,10 @@
     -fx-fill: -jr-search-text;
 }
 
+.file-row-text:opacity{
+    -fx-fill: derive(-jr-search-text, 70%);
+}
+
 .combo-box-base {
     -fx-background-color: -fx-outer-border, -fx-control-inner-background;
     -fx-background-insets: 0, 1;

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

@@ -4,6 +4,7 @@
 
 import javafx.beans.binding.Bindings;
 import javafx.collections.ObservableList;
+import javafx.css.PseudoClass;
 import javafx.fxml.FXML;
 import javafx.scene.Node;
 import javafx.scene.Parent;
@@ -46,6 +47,7 @@
 import org.jabref.preferences.PreferencesService;
 
 import com.airhacks.afterburner.views.ViewLoader;
+import com.tobiasdiez.easybind.EasyBind;
 
 public class LinkedFilesEditor extends HBox implements FieldEditorFX {
 
@@ -137,11 +139,16 @@ private void handleOnDragDropped(LinkedFileViewModel originalItem, DragEvent eve
     }
 
     private static Node createFileDisplay(LinkedFileViewModel linkedFile) {
+        PseudoClass opacity = PseudoClass.getPseudoClass("opacity");
+
         Node icon = linkedFile.getTypeIcon().getGraphicNode();
         icon.setOnMouseClicked(event -> linkedFile.open());
+
         Text link = new Text();
         link.textProperty().bind(linkedFile.linkProperty());
         link.getStyleClass().setAll("file-row-text");
+        EasyBind.subscribe(linkedFile.isAutomaticallyFoundProperty(), found -> link.pseudoClassStateChanged(opacity, found));
+
         Text desc = new Text();
         desc.textProperty().bind(linkedFile.descriptionProperty());
         desc.getStyleClass().setAll("file-row-text");
@@ -157,6 +164,7 @@ private static Node createFileDisplay(LinkedFileViewModel linkedFile) {
         Button acceptAutoLinkedFile = IconTheme.JabRefIcons.AUTO_LINKED_FILE.asButton();
         acceptAutoLinkedFile.setTooltip(new Tooltip(Localization.lang("This file was found automatically. Do you want to link it to this entry?")));
         acceptAutoLinkedFile.visibleProperty().bind(linkedFile.isAutomaticallyFoundProperty());
+        acceptAutoLinkedFile.managedProperty().bind(linkedFile.isAutomaticallyFoundProperty());
         acceptAutoLinkedFile.setOnAction(event -> linkedFile.acceptAsLinked());
         acceptAutoLinkedFile.getStyleClass().setAll("icon-button");
 
@@ -169,7 +177,7 @@ private static Node createFileDisplay(LinkedFileViewModel linkedFile) {
         HBox container = new HBox(10);
         container.setPrefHeight(Double.NEGATIVE_INFINITY);
 
-        container.getChildren().addAll(info, acceptAutoLinkedFile, writeXMPMetadata);
+        container.getChildren().addAll(acceptAutoLinkedFile, info, writeXMPMetadata);
 
         return container;
     }

src/main/java/org/jabref/gui/icon/IconTheme.java

@@ -230,7 +230,7 @@ public enum JabRefIcons implements JabRefIcon {
         RENAME(MaterialDesignR.RENAME_BOX),
         DELETE_FILE(MaterialDesignD.DELETE_FOREVER),
         REMOVE_LINK(MaterialDesignL.LINK_OFF),
-        AUTO_LINKED_FILE(MaterialDesignB.BRIEFCASE_CHECK),
+        AUTO_LINKED_FILE(MaterialDesignL.LINK_PLUS),
         QUALITY_ASSURED(MaterialDesignC.CERTIFICATE),
         QUALITY(MaterialDesignC.CERTIFICATE),
         OPEN(MaterialDesignF.FOLDER_OUTLINE),