d56617e5d0
* chore: avoid appending git version to the exported patches * fix no-eol at end of v8 patch
76 lines
3.5 KiB
Diff
76 lines
3.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Heilig Benedek <benecene@gmail.com>
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Date: Thu, 20 Sep 2018 17:47:54 -0700
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Subject: disable-redraw-lock.patch
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Chromium uses a custom window titlebar implementation on Windows when DWM
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is disabled (Windows 7 and earlier, non Aero theme). The native titlebar
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sometimes painted over this custom titlebar, so a workaround was put in
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place to lock redraws in reaction to certain events if DWM is disabled,
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since the code assumes that in that case, the custom titlebar is painted.
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Electron forces the use of the native titlebar, which the workaround doesn't
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take into account, and still locks redraws, causing weird repainting issues
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in electron (and other applications). This patch provides a way to disable
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the redraw locking mechanism, which fixes these issues. The electron issue
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can be found at https://github.com/electron/electron/issues/1821
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diff --git a/ui/views/win/hwnd_message_handler.cc b/ui/views/win/hwnd_message_handler.cc
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index d5f442f71da7ad3b7087af40967d6df0579803f5..a8f39b0601157dc75d35460eccff67f36bc07941 100644
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--- a/ui/views/win/hwnd_message_handler.cc
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+++ b/ui/views/win/hwnd_message_handler.cc
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@@ -281,6 +281,10 @@ const int kSynthesizedMouseMessagesTimeDifference = 500;
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} // namespace
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+bool HWNDMessageHandlerDelegate::HasNativeFrame() const {
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+ return false;
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+}
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+
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// A scoping class that prevents a window from being able to redraw in response
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// to invalidations that may occur within it for the lifetime of the object.
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//
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@@ -332,6 +336,7 @@ class HWNDMessageHandler::ScopedRedrawLock {
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cancel_unlock_(false),
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should_lock_(owner_->IsVisible() && !owner->HasChildRenderingWindow() &&
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::IsWindow(hwnd_) &&
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+ !owner_->HasNativeFrame() &&
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(!(GetWindowLong(hwnd_, GWL_STYLE) & WS_CAPTION) ||
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!ui::win::IsAeroGlassEnabled())) {
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if (should_lock_)
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@@ -940,6 +945,10 @@ bool HWNDMessageHandler::HasChildRenderingWindow() {
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hwnd());
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}
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+bool HWNDMessageHandler::HasNativeFrame() {
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+ return delegate_->HasNativeFrame();
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+}
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+
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////////////////////////////////////////////////////////////////////////////////
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// HWNDMessageHandler, gfx::WindowImpl overrides:
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diff --git a/ui/views/win/hwnd_message_handler.h b/ui/views/win/hwnd_message_handler.h
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index 91afedec8e2951e3f0176fce2e84261a3846d218..fa514d102538e141f48ff6af5f5c8fc4d6da17b0 100644
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--- a/ui/views/win/hwnd_message_handler.h
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+++ b/ui/views/win/hwnd_message_handler.h
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@@ -181,6 +181,8 @@ class VIEWS_EXPORT HWNDMessageHandler : public gfx::WindowImpl,
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typedef std::set<DWORD> TouchIDs;
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enum class DwmFrameState { OFF, ON };
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+ bool HasNativeFrame();
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+
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// Overridden from WindowImpl:
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HICON GetDefaultWindowIcon() const override;
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HICON GetSmallWindowIcon() const override;
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diff --git a/ui/views/win/hwnd_message_handler_delegate.h b/ui/views/win/hwnd_message_handler_delegate.h
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index 1b2d98a857385d31b5f401d685fd9524da228726..dd080180aebda193ef885bf7f41587802787a3c6 100644
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--- a/ui/views/win/hwnd_message_handler_delegate.h
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+++ b/ui/views/win/hwnd_message_handler_delegate.h
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@@ -46,6 +46,8 @@ class VIEWS_EXPORT HWNDMessageHandlerDelegate {
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// True if the widget associated with this window has a non-client view.
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virtual bool HasNonClientView() const = 0;
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+ virtual bool HasNativeFrame() const;
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+
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// Returns who we want to be drawing the frame. Either the system (Windows)
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// will handle it or Chrome will custom draw it.
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virtual FrameMode GetFrameMode() const = 0;
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