e46446e7e4
Co-authored-by: deepak1556 <hop2deep@gmail.com> Co-authored-by: Jeremy Rose <nornagon@nornagon.net>
76 lines
3.5 KiB
Diff
76 lines
3.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Heilig Benedek <benecene@gmail.com>
|
|
Date: Thu, 20 Sep 2018 17:47:54 -0700
|
|
Subject: disable-redraw-lock.patch
|
|
|
|
Chromium uses a custom window titlebar implementation on Windows when DWM
|
|
is disabled (Windows 7 and earlier, non Aero theme). The native titlebar
|
|
sometimes painted over this custom titlebar, so a workaround was put in
|
|
place to lock redraws in reaction to certain events if DWM is disabled,
|
|
since the code assumes that in that case, the custom titlebar is painted.
|
|
Electron forces the use of the native titlebar, which the workaround doesn't
|
|
take into account, and still locks redraws, causing weird repainting issues
|
|
in electron (and other applications). This patch provides a way to disable
|
|
the redraw locking mechanism, which fixes these issues. The electron issue
|
|
can be found at https://github.com/electron/electron/issues/1821
|
|
|
|
diff --git a/ui/views/win/hwnd_message_handler.cc b/ui/views/win/hwnd_message_handler.cc
|
|
index c347d1610d4c3d6a6ee3c7cb17d49d54482de818..53a7c6d03146994f9af9a503646e65b5c884ab23 100644
|
|
--- a/ui/views/win/hwnd_message_handler.cc
|
|
+++ b/ui/views/win/hwnd_message_handler.cc
|
|
@@ -304,6 +304,10 @@ constexpr int kSynthesizedMouseMessagesTimeDifference = 500;
|
|
|
|
} // namespace
|
|
|
|
+bool HWNDMessageHandlerDelegate::HasNativeFrame() const {
|
|
+ return false;
|
|
+}
|
|
+
|
|
// A scoping class that prevents a window from being able to redraw in response
|
|
// to invalidations that may occur within it for the lifetime of the object.
|
|
//
|
|
@@ -355,6 +359,7 @@ class HWNDMessageHandler::ScopedRedrawLock {
|
|
cancel_unlock_(false),
|
|
should_lock_(owner_->IsVisible() && !owner->HasChildRenderingWindow() &&
|
|
::IsWindow(hwnd_) &&
|
|
+ !owner_->HasNativeFrame() &&
|
|
(!(GetWindowLong(hwnd_, GWL_STYLE) & WS_CAPTION) ||
|
|
!ui::win::IsAeroGlassEnabled())) {
|
|
if (should_lock_)
|
|
@@ -969,6 +974,10 @@ HWNDMessageHandler::RegisterUnadjustedMouseEvent() {
|
|
return scoped_enable;
|
|
}
|
|
|
|
+bool HWNDMessageHandler::HasNativeFrame() {
|
|
+ return delegate_->HasNativeFrame();
|
|
+}
|
|
+
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// HWNDMessageHandler, gfx::WindowImpl overrides:
|
|
|
|
diff --git a/ui/views/win/hwnd_message_handler.h b/ui/views/win/hwnd_message_handler.h
|
|
index 042392a659fd6934e84d66cc985d25863e365e34..5e88e780c3da4805eae7870291188e636423042e 100644
|
|
--- a/ui/views/win/hwnd_message_handler.h
|
|
+++ b/ui/views/win/hwnd_message_handler.h
|
|
@@ -202,6 +202,8 @@ class VIEWS_EXPORT HWNDMessageHandler : public gfx::WindowImpl,
|
|
using TouchIDs = std::set<DWORD>;
|
|
enum class DwmFrameState { kOff, kOn };
|
|
|
|
+ bool HasNativeFrame();
|
|
+
|
|
// Overridden from WindowImpl:
|
|
HICON GetDefaultWindowIcon() const override;
|
|
HICON GetSmallWindowIcon() const override;
|
|
diff --git a/ui/views/win/hwnd_message_handler_delegate.h b/ui/views/win/hwnd_message_handler_delegate.h
|
|
index 7344cdd4cf7d68da617b81cbdf464a859a40fb09..9ec1f23b26b41e10a46be0ca5d254583b6534ecb 100644
|
|
--- a/ui/views/win/hwnd_message_handler_delegate.h
|
|
+++ b/ui/views/win/hwnd_message_handler_delegate.h
|
|
@@ -46,6 +46,8 @@ class VIEWS_EXPORT HWNDMessageHandlerDelegate {
|
|
// True if the widget associated with this window has a non-client view.
|
|
virtual bool HasNonClientView() const = 0;
|
|
|
|
+ virtual bool HasNativeFrame() const;
|
|
+
|
|
// Returns who we want to be drawing the frame. Either the system (Windows)
|
|
// will handle it or Chrome will custom draw it.
|
|
virtual FrameMode GetFrameMode() const = 0;
|