From 26a6372bb0c6528358e34f8175a14ff0be47fb12 Mon Sep 17 00:00:00 2001 From: Johan Klokkhammer Helsing Date: Mon, 19 Mar 2018 10:21:47 +0100 Subject: xdg-shell v5,v6 shell integrations: Fix crash when showing popups If a popup was shown without any input events happening first, it would cause nullptr dereferences in both xdg-shell v5 and v6. Fixes crashes in: - tst_QAccessibility::comboBoxTest - tst_QAccessibility::menuTest - tst_QWindow::touchInterruptedByPopup - tst_QFocusEvent::checkReason_Popup Task-number: QTBUG-67150 Change-Id: Ib3e06326f71e4ab5f74727cb4f79626a21c34d55 Reviewed-by: Paul Olav Tvete --- src/client/qwaylandxdgshell.cpp | 3 +-- src/client/qwaylandxdgshell_p.h | 2 +- src/client/qwaylandxdgshellintegration.cpp | 5 +++-- src/client/qwaylandxdgshellv6.cpp | 5 +++-- 4 files changed, 8 insertions(+), 7 deletions(-) diff --git a/src/client/qwaylandxdgshell.cpp b/src/client/qwaylandxdgshell.cpp index 8b252b95..9a34e72d 100644 --- a/src/client/qwaylandxdgshell.cpp +++ b/src/client/qwaylandxdgshell.cpp @@ -73,12 +73,11 @@ QWaylandXdgSurface *QWaylandXdgShell::createXdgSurface(QWaylandWindow *window) return new QWaylandXdgSurface(this, window); } -QWaylandXdgPopup *QWaylandXdgShell::createXdgPopup(QWaylandWindow *window) +QWaylandXdgPopup *QWaylandXdgShell::createXdgPopup(QWaylandWindow *window, QWaylandInputDevice *inputDevice) { QWaylandWindow *parentWindow = m_popups.empty() ? window->transientParent() : m_popups.last(); ::wl_surface *parentSurface = parentWindow->object(); - QWaylandInputDevice *inputDevice = window->display()->lastInputDevice(); if (m_popupSerial == 0) m_popupSerial = inputDevice->serial(); ::wl_seat *seat = inputDevice->wl_seat(); diff --git a/src/client/qwaylandxdgshell_p.h b/src/client/qwaylandxdgshell_p.h index afbd9c59..761f2521 100644 --- a/src/client/qwaylandxdgshell_p.h +++ b/src/client/qwaylandxdgshell_p.h @@ -79,7 +79,7 @@ public: ~QWaylandXdgShell() override; QWaylandXdgSurface *createXdgSurface(QWaylandWindow *window); - QWaylandXdgPopup *createXdgPopup(QWaylandWindow *window); + QWaylandXdgPopup *createXdgPopup(QWaylandWindow *window, QWaylandInputDevice *inputDevice); private: void xdg_shell_ping(uint32_t serial) override; diff --git a/src/client/qwaylandxdgshellintegration.cpp b/src/client/qwaylandxdgshellintegration.cpp index 5fa4385d..ee72c2d5 100644 --- a/src/client/qwaylandxdgshellintegration.cpp +++ b/src/client/qwaylandxdgshellintegration.cpp @@ -74,8 +74,9 @@ bool QWaylandXdgShellIntegration::initialize(QWaylandDisplay *display) QWaylandShellSurface *QWaylandXdgShellIntegration::createShellSurface(QWaylandWindow *window) { - if (window->window()->type() == Qt::WindowType::Popup) - return m_xdgShell->createXdgPopup(window); + QWaylandInputDevice *inputDevice = window->display()->lastInputDevice(); + if (window->window()->type() == Qt::WindowType::Popup && inputDevice) + return m_xdgShell->createXdgPopup(window, inputDevice); else return m_xdgShell->createXdgSurface(window); } diff --git a/src/client/qwaylandxdgshellv6.cpp b/src/client/qwaylandxdgshellv6.cpp index c89c8316..a166a3bc 100644 --- a/src/client/qwaylandxdgshellv6.cpp +++ b/src/client/qwaylandxdgshellv6.cpp @@ -165,8 +165,9 @@ void QWaylandXdgSurfaceV6::setAppId(const QString &appId) void QWaylandXdgSurfaceV6::setType(Qt::WindowType type, QWaylandWindow *transientParent) { - if ((type == Qt::Popup || type == Qt::ToolTip) && transientParent) { - setPopup(transientParent, m_window->display()->lastInputDevice(), m_window->display()->lastInputSerial(), type == Qt::Popup); + QWaylandDisplay *display = m_window->display(); + if ((type == Qt::Popup || type == Qt::ToolTip) && transientParent && display->lastInputDevice()) { + setPopup(transientParent, display->lastInputDevice(), display->lastInputSerial(), type == Qt::Popup); } else { setToplevel(); if (transientParent) { -- cgit v1.2.1