qt5-qtwayland/qtwayland-client-dont-send-fakt-surface-created-destroyed-events.patch
2020-07-27 10:55:57 +02:00

93 lines
3.7 KiB
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From cd21404f99b486ff62225699e1a4bdc0d5b3d5c1 Mon Sep 17 00:00:00 2001
From: David Edmundson <davidedmundson@kde.org>
Date: Sun, 23 Jun 2019 15:09:51 +0200
Subject: [PATCH] Client: Don't send fake SurfaceCreated/Destroyed events
QPlatformSurface relates to the platform window, not the wl_surface.
The events are already emitted by QPlatformWindow on create/destroy.
To preserve compatibility for a previous KDE version it was faked to
emit the events when the wl_surface is created/hidden to keep behavior.
This is no longer necessary, and it has caused multiple errors, the latest
being a crash when switching between sub-menus with the Sway compositor.
[ChangeLog][QPA plugin] QWaylandWindow no longer sends fake SurfaceCreated/Destroyed events.
Use expose events to be notified when a Wayland surface appears.
Task-number: QTBUG-76324
Fixes: QTBUG-81952
Pick-to: 5.15
Change-Id: I2f003bc9da85f032a0053677fd281152099fc9eb
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: David Edmundson <davidedmundson@kde.org>
---
diff --git a/examples/wayland/custom-extension/client-common/customextension.cpp b/examples/wayland/custom-extension/client-common/customextension.cpp
index aa0cb58..8b77c06 100644
--- a/examples/wayland/custom-extension/client-common/customextension.cpp
+++ b/examples/wayland/custom-extension/client-common/customextension.cpp
@@ -81,8 +81,11 @@ QWindow *CustomExtension::windowForSurface(struct ::wl_surface *surface)
bool CustomExtension::eventFilter(QObject *object, QEvent *event)
{
- if (event->type() == QEvent::PlatformSurface
- && static_cast<QPlatformSurfaceEvent*>(event)->surfaceEventType() == QPlatformSurfaceEvent::SurfaceCreated) {
+ if (event->type() == QEvent::Expose) {
+ auto *exposeEvent = static_cast<QExposeEvent *>(event);
+ if (exposeEvent->region().isNull())
+ return false;
+
QWindow *window = qobject_cast<QWindow*>(object);
Q_ASSERT(window);
window->removeEventFilter(this);
diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
index 9669cbb..d0d834b 100644
--- a/src/client/qwaylandwindow.cpp
+++ b/src/client/qwaylandwindow.cpp
@@ -100,7 +100,7 @@ QWaylandWindow::~QWaylandWindow()
delete mWindowDecoration;
if (mSurface)
- reset(false);
+ reset();
const QWindow *parent = window();
const auto tlw = QGuiApplication::topLevelWindows();
@@ -127,8 +127,6 @@ void QWaylandWindow::initWindow()
if (!mSurface) {
initializeWlSurface();
- QPlatformSurfaceEvent e(QPlatformSurfaceEvent::SurfaceCreated);
- QGuiApplication::sendEvent(window(), &e);
}
if (shouldCreateSubSurface()) {
@@ -241,12 +239,8 @@ bool QWaylandWindow::shouldCreateSubSurface() const
return QPlatformWindow::parent() != nullptr;
}
-void QWaylandWindow::reset(bool sendDestroyEvent)
+void QWaylandWindow::reset()
{
- if (mSurface && sendDestroyEvent) {
- QPlatformSurfaceEvent e(QPlatformSurfaceEvent::SurfaceAboutToBeDestroyed);
- QGuiApplication::sendEvent(window(), &e);
- }
delete mShellSurface;
mShellSurface = nullptr;
delete mSubSurfaceWindow;
diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h
index b57f5dd..a65301c 100644
--- a/src/client/qwaylandwindow_p.h
+++ b/src/client/qwaylandwindow_p.h
@@ -261,7 +261,7 @@ private:
void initializeWlSurface();
bool shouldCreateShellSurface() const;
bool shouldCreateSubSurface() const;
- void reset(bool sendDestroyEvent = true);
+ void reset();
void sendExposeEvent(const QRect &rect);
static void closePopups(QWaylandWindow *parent);
QWaylandScreen *calculateScreenFromSurfaceEvents() const;