From d0b075ca1b7c4bbbfe3b34da570a3c9a5e239888 Mon Sep 17 00:00:00 2001
From: Konloch <konloch@gmail.com>
Date: Sun, 29 Sep 2024 09:05:01 -0600
Subject: [PATCH] Added GetLastActiveClass

To make temporary plugins work with the BCV.getCurrentlyOpenedClassNode() API, we have to store the last active class viewer in memory

There is probably a better way of doing this, but the only code using these APIs are user plugins, so it shouldn't impact the rest of the program if we have a resource mismatch
---
 .../club/bytecodeviewer/BytecodeViewer.java        | 10 +++++++++-
 .../gui/resourceviewer/Workspace.java              | 14 ++++++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/main/java/the/bytecode/club/bytecodeviewer/BytecodeViewer.java b/src/main/java/the/bytecode/club/bytecodeviewer/BytecodeViewer.java
index c31fce83..14ce11c7 100644
--- a/src/main/java/the/bytecode/club/bytecodeviewer/BytecodeViewer.java
+++ b/src/main/java/the/bytecode/club/bytecodeviewer/BytecodeViewer.java
@@ -350,7 +350,15 @@ public class BytecodeViewer
      */
     public static ClassNode getCurrentlyOpenedClassNode()
     {
-        return getActiveResource().resource.getResourceClassNode();
+        return getActiveClass().resource.getResourceClassNode();
+    }
+
+    /**
+     * Returns the currently opened & viewed resource
+     */
+    public static ResourceViewer getActiveClass()
+    {
+        return BytecodeViewer.viewer.workPane.getLastActiveClass();
     }
 
     /**
diff --git a/src/main/java/the/bytecode/club/bytecodeviewer/gui/resourceviewer/Workspace.java b/src/main/java/the/bytecode/club/bytecodeviewer/gui/resourceviewer/Workspace.java
index 9875fda4..cb5b1154 100644
--- a/src/main/java/the/bytecode/club/bytecodeviewer/gui/resourceviewer/Workspace.java
+++ b/src/main/java/the/bytecode/club/bytecodeviewer/gui/resourceviewer/Workspace.java
@@ -54,6 +54,7 @@ public class Workspace extends TranslatedVisibleComponent
     public final JButton refreshClass;
     public final Set<String> openedTabs = new HashSet<>();
     public HashMap<String, ClassFileContainer> classFiles = new HashMap<>();
+    private ResourceViewer lastActiveClassViewer;
 
     public Workspace()
     {
@@ -61,6 +62,14 @@ public class Workspace extends TranslatedVisibleComponent
 
         this.tabs = new DraggableTabbedPane();
 
+        tabs.addChangeListener(e ->
+        {
+            ResourceViewer viewer = (ResourceViewer) tabs.getSelectedComponent();
+
+            if(viewer instanceof ClassViewer)
+                lastActiveClassViewer = viewer;
+        });
+
         // configure popup menu of close tabs
         JTabbedPanePopupMenuTabsCloser popupMenuTabsCloser = new JTabbedPanePopupMenuTabsCloser(this.tabs);
         PopupMenuTabsCloseConfiguration.Builder builder = new PopupMenuTabsCloseConfiguration.Builder();
@@ -173,6 +182,11 @@ public class Workspace extends TranslatedVisibleComponent
         return (ResourceViewer) tabs.getSelectedComponent();
     }
 
+    public ResourceViewer getLastActiveClass()
+    {
+        return lastActiveClassViewer;
+    }
+
     public Component[] getLoadedViewers()
     {
         return tabs.getComponents();