From d052ae748fe124427cf5b02cf711c07deeaacd81 Mon Sep 17 00:00:00 2001
From: Kirill Likhodedov <Kirill.Likhodedov@jetbrains.com>
Date: Mon, 18 Feb 2013 13:57:36 +0400
Subject: [PATCH] [diff] Go to source on Ctrl/Cmd+Click on line number of local
 version

Go to source was previously executed on plain click, but it provided
a lot of confusion and was removed: IDEA-100782.

But some users miss this feature: IDEA-101289.
For them use Ctrl/Cmd+Click (as in Go to declaration in the editor).
---
 .../src/com/intellij/openapi/diff/impl/DiffSideView.java | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/platform/platform-impl/src/com/intellij/openapi/diff/impl/DiffSideView.java b/platform/platform-impl/src/com/intellij/openapi/diff/impl/DiffSideView.java
index 26ea37f5e798..30e046c383ff 100644
--- a/platform/platform-impl/src/com/intellij/openapi/diff/impl/DiffSideView.java
+++ b/platform/platform-impl/src/com/intellij/openapi/diff/impl/DiffSideView.java
@@ -34,6 +34,7 @@ import com.intellij.openapi.editor.highlighter.EditorHighlighter;
 import com.intellij.openapi.fileEditor.FileEditor;
 import com.intellij.openapi.fileEditor.OpenFileDescriptor;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.util.SystemInfo;
 import com.intellij.util.IJSwingUtilities;
 import com.intellij.util.ui.ScrollUtil;
 import org.jetbrains.annotations.NonNls;
@@ -45,6 +46,7 @@ import javax.swing.border.Border;
 import java.awt.*;
 import java.awt.event.FocusAdapter;
 import java.awt.event.FocusEvent;
+import java.awt.event.InputEvent;
 import java.awt.event.MouseEvent;
 
 public class DiffSideView {
@@ -158,7 +160,7 @@ public class DiffSideView {
 
     private final EditorMouseAdapter myMouseListener = new EditorMouseAdapter() {
       public void mouseReleased(EditorMouseEvent e) {
-        if (e.getMouseEvent().getButton() != MouseEvent.BUTTON1) {
+        if (!isEventHandled(e.getMouseEvent())) {
           return;
         }
         if (!isInMyArea(e)) return;
@@ -168,6 +170,11 @@ public class DiffSideView {
       }
     };
 
+    private static boolean isEventHandled(MouseEvent e) {
+      int mask = SystemInfo.isMac ? InputEvent.META_MASK : InputEvent.CTRL_MASK;
+      return e.getButton() == MouseEvent.BUTTON1 && (e.getModifiers() & mask) != 0;
+    }
+
     private OpenFileDescriptor getOpenFileDescriptor(EditorMouseEvent e) {
       int offset = myEditor.logicalPositionToOffset(myEditor.xyToLogicalPosition(e.getMouseEvent().getPoint()));
       return myContent.getOpenFileDescriptor(offset);