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openSUSE:Leap:42.3:Update
kglobalaccel
0001-Fix-keyboard-layout-change-notifications.p...
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File 0001-Fix-keyboard-layout-change-notifications.patch of Package kglobalaccel
From 4d28bd4183d20a9bff4f50e88cbb47ffef0ede43 Mon Sep 17 00:00:00 2001 From: Fabian Vogt <fabian@ritter-vogt.de> Date: Fri, 26 Oct 2018 10:01:03 +0200 Subject: [PATCH] Fix keyboard layout change notifications Summary: This rework fixes several issues: - Qt wasn't informed about XCB_MAPPING_NOTIFY anymore - With XKB enabled in Qt, X won't send XCB_MAPPING_NOTIFY anymore. So listen for XKB events as well. - Install the event filter before fetching the keysym mapping to close a race window - Use the old mapping for ungrabbing BUG: 350816 BUG: 269403 Test Plan: Ctrl-Alt-Y global shortcut works even when doing "setxkbmap us; kglobalaccel5 & sleep 1; setxkbmap de;" while it did not before. On some systems, this race happened on every login, now it works reliably. Reviewers: #frameworks, #plasma, romangg Reviewed By: #plasma, romangg Subscribers: romangg, ngraham, anthonyfieroni, kde-frameworks-devel Tags: #frameworks Differential Revision: https://phabricator.kde.org/D16434 --- CMakeLists.txt | 2 +- src/runtime/plugins/CMakeLists.txt | 2 +- src/runtime/plugins/xcb/CMakeLists.txt | 1 + src/runtime/plugins/xcb/kglobalaccel_x11.cpp | 76 ++++++++++++++------ src/runtime/plugins/xcb/kglobalaccel_x11.h | 1 + 5 files changed, 59 insertions(+), 23 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 85c5913..c12fb4d 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -49,7 +49,7 @@ find_package(KF5WindowSystem ${KF5_DEP_VERSION} REQUIRED) # no X11 stuff on mac if (NOT APPLE) - find_package(XCB MODULE COMPONENTS XCB KEYSYMS XTEST) + find_package(XCB MODULE COMPONENTS XCB KEYSYMS XTEST XKB) set_package_properties(XCB PROPERTIES DESCRIPTION "X protocol C-language Binding" URL "http://xcb.freedesktop.org" TYPE OPTIONAL diff --git a/src/runtime/plugins/CMakeLists.txt b/src/runtime/plugins/CMakeLists.txt index 316b9bf..29e45d4 100644 --- a/src/runtime/plugins/CMakeLists.txt +++ b/src/runtime/plugins/CMakeLists.txt @@ -1,4 +1,4 @@ -if (${XCB_XCB_FOUND} AND ${XCB_KEYSYMS_FOUND}) +if (${XCB_XCB_FOUND} AND ${XCB_KEYSYMS_FOUND} AND ${XCB_XKB_FOUND}) add_subdirectory(xcb) endif() # if (APPLE) diff --git a/src/runtime/plugins/xcb/CMakeLists.txt b/src/runtime/plugins/xcb/CMakeLists.txt index 45bf4dc..b76477f 100644 --- a/src/runtime/plugins/xcb/CMakeLists.txt +++ b/src/runtime/plugins/xcb/CMakeLists.txt @@ -8,6 +8,7 @@ target_link_libraries(KF5GlobalAccelPrivateXcb KF5GlobalAccelPrivate XCB::XCB XCB::KEYSYMS + XCB::XKB ) install( diff --git a/src/runtime/plugins/xcb/kglobalaccel_x11.cpp b/src/runtime/plugins/xcb/kglobalaccel_x11.cpp index 9b75ec4..cdee881 100644 --- a/src/runtime/plugins/xcb/kglobalaccel_x11.cpp +++ b/src/runtime/plugins/xcb/kglobalaccel_x11.cpp @@ -33,9 +33,13 @@ #include <X11/keysym.h> // xcb + +// It uses "explicit" as a variable name, which is not allowed in C++ +#define explicit xcb_explicit #include <xcb/xcb.h> #include <xcb/xcb_keysyms.h> - +#include <xcb/xkb.h> +#undef explicit // g_keyModMaskXAccel // mask of modifiers which can be used in shortcuts @@ -63,11 +67,16 @@ static void calculateGrabMasks() KGlobalAccelImpl::KGlobalAccelImpl(QObject *parent) : KGlobalAccelInterface(parent) , m_keySymbols(nullptr) + , m_xkb_first_event(0) { + Q_ASSERT(QX11Info::connection()); + + const xcb_query_extension_reply_t *reply = xcb_get_extension_data(QX11Info::connection(), &xcb_xkb_id); + if (reply && reply->present) { + m_xkb_first_event = reply->first_event; + } + calculateGrabMasks(); - if (QX11Info::isPlatformX11()) { - m_keySymbols = xcb_key_symbols_alloc(QX11Info::connection()); - } } KGlobalAccelImpl::~KGlobalAccelImpl() @@ -87,8 +96,12 @@ bool KGlobalAccelImpl::grabKey( int keyQt, bool grab ) } if (!m_keySymbols) { - return false; + m_keySymbols = xcb_key_symbols_alloc(QX11Info::connection()); + if (!m_keySymbols) { + return false; + } } + if( !keyQt ) { qCDebug(KGLOBALACCELD) << "Tried to grab key with null code."; return false; @@ -192,30 +205,45 @@ bool KGlobalAccelImpl::nativeEventFilter(const QByteArray &eventType, void *mess } xcb_generic_event_t *event = reinterpret_cast<xcb_generic_event_t*>(message); const uint8_t responseType = event->response_type & ~0x80; - switch (responseType) { - case XCB_MAPPING_NOTIFY: - qCDebug(KGLOBALACCELD) << "Got XMappingNotify event"; - xcb_refresh_keyboard_mapping(m_keySymbols, reinterpret_cast<xcb_mapping_notify_event_t*>(event)); - x11MappingNotify(); - return true; - - case XCB_KEY_PRESS: + if (responseType == XCB_MAPPING_NOTIFY) { + x11MappingNotify(); + + // Make sure to let Qt handle it as well + return false; + } else if (responseType == XCB_KEY_PRESS) { #ifdef KDEDGLOBALACCEL_TRACE - qCDebug(KGLOBALACCELD) << "Got XKeyPress event"; + qCDebug(KGLOBALACCELD) << "Got XKeyPress event"; #endif - return x11KeyPress(reinterpret_cast<xcb_key_press_event_t*>(event)); + return x11KeyPress(reinterpret_cast<xcb_key_press_event_t*>(event)); + } else if (m_xkb_first_event && responseType == m_xkb_first_event) { + const uint8_t xkbEvent = event->pad0; + switch (xkbEvent) { + case XCB_XKB_MAP_NOTIFY: + x11MappingNotify(); + break; + case XCB_XKB_NEW_KEYBOARD_NOTIFY: { + const xcb_xkb_new_keyboard_notify_event_t *ev = + reinterpret_cast<xcb_xkb_new_keyboard_notify_event_t*>(event); + if (ev->changed & XCB_XKB_NKN_DETAIL_KEYCODES) + x11MappingNotify(); + break; + } + default: + break; + } - default: - // We get all XEvents. Just ignore them. - return false; + // Make sure to let Qt handle it as well + return false; + } else { + // We get all XEvents. Just ignore them. + return false; } - - Q_ASSERT(false); - return false; } void KGlobalAccelImpl::x11MappingNotify() { + qCDebug(KGLOBALACCELD) << "Got XMappingNotify event"; + // Maybe the X modifier map has been changed. // uint oldKeyModMaskXAccel = g_keyModMaskXAccel; // uint oldKeyModMaskXOnOrOff = g_keyModMaskXOnOrOff; @@ -226,6 +254,12 @@ void KGlobalAccelImpl::x11MappingNotify() // different keycodes. ungrabKeys(); + if (m_keySymbols) { + // Force reloading of the keySym mapping + xcb_key_symbols_free(m_keySymbols); + m_keySymbols = nullptr; + } + KKeyServer::initializeMods(); calculateGrabMasks(); diff --git a/src/runtime/plugins/xcb/kglobalaccel_x11.h b/src/runtime/plugins/xcb/kglobalaccel_x11.h index 4011719..1ed75d1 100644 --- a/src/runtime/plugins/xcb/kglobalaccel_x11.h +++ b/src/runtime/plugins/xcb/kglobalaccel_x11.h @@ -77,6 +77,7 @@ private: bool x11KeyPress(xcb_key_press_event_t *event); xcb_key_symbols_t *m_keySymbols; + uint8_t m_xkb_first_event; }; #endif // _KGLOBALACCEL_X11_H -- 2.19.0
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