From d58008c4310f99d0faebcfb2fd9aa9296b813ecf Mon Sep 17 00:00:00 2001
From: Johan Klokkhammer Helsing <johan.helsing@qt.io>
Date: Mon, 28 Oct 2019 12:05:09 +0100
Subject: Client: Support running with no screens

[ChangeLog][QPA plugin] The QPA plugin now supports running with no screens
attached. This is handled by adding a fake screen when the last screen is
disconnected, similarly to what the other QPA plugins do.

Fixes: QTBUG-79111
Change-Id: I4a0e023ae784217dd030f0c62f12487fdff4825c
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
---
 src/client/qwaylanddisplay_p.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/client/qwaylanddisplay_p.h')

diff --git a/src/client/qwaylanddisplay_p.h b/src/client/qwaylanddisplay_p.h
index 14bb77198..cd845b44e 100644
--- a/src/client/qwaylanddisplay_p.h
+++ b/src/client/qwaylanddisplay_p.h
@@ -76,6 +76,7 @@ QT_BEGIN_NAMESPACE
 class QAbstractEventDispatcher;
 class QSocketNotifier;
 class QPlatformScreen;
+class QPlatformPlaceholderScreen;
 
 namespace QtWayland {
     class qt_surface_extension;
@@ -124,6 +125,8 @@ public:
 #endif
 
     QList<QWaylandScreen *> screens() const { return mScreens; }
+    QPlatformPlaceholderScreen *placeholderScreen() const { return mPlaceholderScreen; }
+    void ensureScreen();
 
     QWaylandScreen *screenForOutput(struct wl_output *output) const;
     void handleScreenInitialized(QWaylandScreen *screen);
@@ -228,6 +231,7 @@ private:
     QScopedPointer<QWaylandShm> mShm;
     QList<QWaylandScreen *> mWaitingScreens;
     QList<QWaylandScreen *> mScreens;
+    QPlatformPlaceholderScreen *mPlaceholderScreen = nullptr;
     QList<QWaylandInputDevice *> mInputDevices;
     QList<Listener> mRegistryListeners;
     QWaylandIntegration *mWaylandIntegration = nullptr;
-- 
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