From 5dd3e42476ea4e82619fab10717be23aa7ac5b2e Mon Sep 17 00:00:00 2001
From: Anton Tarasov <anton.tarasov@jetbrains.com>
Date: Mon, 8 Jul 2019 19:03:45 +0300
Subject: [PATCH] Support JBR-1650 propagate custom decoration title bar height
 to native

GitOrigin-RevId: 13ca881ea2023fdc5871c382bb23f4a5a3855348
---
 .../src/com/intellij/jdkEx/JdkEx.java              | 14 ++++++++++++++
 .../customFrameDecorations/header/CustomHeader.kt  |  1 +
 2 files changed, 15 insertions(+)

diff --git a/platform/platform-impl/src/com/intellij/jdkEx/JdkEx.java b/platform/platform-impl/src/com/intellij/jdkEx/JdkEx.java
index 6b3a9beda509..2baaf58f8f72 100644
--- a/platform/platform-impl/src/com/intellij/jdkEx/JdkEx.java
+++ b/platform/platform-impl/src/com/intellij/jdkEx/JdkEx.java
@@ -71,4 +71,18 @@ public class JdkEx {
       }
     }
   }
+
+  public static void setCustomDecorationTitleBarHeight(@NotNull Window window, int height) {
+    if (SystemInfo.isJetBrainsJvm && SystemInfo.isWindows) {
+      try {
+        MethodInvocator invocator =
+          new MethodInvocator(false, Class.forName("sun.awt.windows.WWindowPeer"), "setCustomDecorationTitleBarHeight", int.class);
+        if (invocator.isAvailable()) {
+          invocator.invoke(AWTAccessor.getComponentAccessor().getPeer(window), height);
+        }
+      }
+      catch (ClassNotFoundException ignore) {
+      }
+    }
+  }
 }
diff --git a/platform/platform-impl/src/com/intellij/openapi/wm/impl/customFrameDecorations/header/CustomHeader.kt b/platform/platform-impl/src/com/intellij/openapi/wm/impl/customFrameDecorations/header/CustomHeader.kt
index 4e775697ef98..3b2ad388bca1 100644
--- a/platform/platform-impl/src/com/intellij/openapi/wm/impl/customFrameDecorations/header/CustomHeader.kt
+++ b/platform/platform-impl/src/com/intellij/openapi/wm/impl/customFrameDecorations/header/CustomHeader.kt
@@ -159,6 +159,7 @@ abstract class CustomHeader(private val window: Window) : JPanel(), Disposable {
     protected fun updateCustomDecorationHitTestSpots() {
         val toList = getHitTestSpots().map {it.getRectangleOn(window)}.toList()
         JdkEx.setCustomDecorationHitTestSpots(window, toList)
+        JdkEx.setCustomDecorationTitleBarHeight(window, height)
     }
 
     abstract fun getHitTestSpots(): List<RelativeRectangle>