From 61a0656eb4149fe793854d703521bf2df48f8f7a Mon Sep 17 00:00:00 2001 From: Stefan Becker Date: Mon, 25 May 2015 17:46:49 +0300 Subject: [PATCH] xcb: set SM_CLIENT_ID property SM_CLIENT_ID is required by kwin for proper session management. - move client leader initialization from screen to connection - add SM_CLIENT_ID property to client leader Change-Id: I19fb0d098811c865f6f13d5bc3e59a173c596a65 Task-number: QTBUG-46310 Reviewed-by: Alexander Volkov Reviewed-by: Uli Schlachter Reviewed-by: Shawn Rutledge --- src/plugins/platforms/xcb/qxcbconnection.cpp | 53 ++++++++++++++++++++ src/plugins/platforms/xcb/qxcbconnection.h | 2 + src/plugins/platforms/xcb/qxcbscreen.cpp | 32 ------------ src/plugins/platforms/xcb/qxcbscreen.h | 3 -- src/plugins/platforms/xcb/qxcbwindow.cpp | 4 +- 5 files changed, 57 insertions(+), 37 deletions(-) diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp index 4e558f9447..74f48b0136 100644 --- a/src/plugins/platforms/xcb/qxcbconnection.cpp +++ b/src/plugins/platforms/xcb/qxcbconnection.cpp @@ -454,6 +454,7 @@ QXcbConnection::QXcbConnection(QXcbNativeInterface *nativeInterface, bool canGra , has_xkb(false) , m_buttons(0) , m_focusWindow(0) + , m_clientLeader(0) , m_systemTrayTracker(0) , m_glIntegration(Q_NULLPTR) , m_xiGrab(false) @@ -1336,6 +1337,58 @@ xcb_window_t QXcbConnection::rootWindow() return s ? s->root() : 0; } +xcb_window_t QXcbConnection::clientLeader() +{ + if (m_clientLeader == 0) { + m_clientLeader = xcb_generate_id(xcb_connection()); + QXcbScreen *screen = primaryScreen(); + Q_XCB_CALL(xcb_create_window(xcb_connection(), + XCB_COPY_FROM_PARENT, + m_clientLeader, + screen->root(), + 0, 0, 1, 1, + 0, + XCB_WINDOW_CLASS_INPUT_OUTPUT, + screen->screen()->root_visual, + 0, 0)); +#ifndef QT_NO_DEBUG + QByteArray ba("Qt client leader window"); + Q_XCB_CALL(xcb_change_property(xcb_connection(), + XCB_PROP_MODE_REPLACE, + m_clientLeader, + atom(QXcbAtom::_NET_WM_NAME), + atom(QXcbAtom::UTF8_STRING), + 8, + ba.length(), + ba.constData())); +#endif + Q_XCB_CALL(xcb_change_property(xcb_connection(), + XCB_PROP_MODE_REPLACE, + m_clientLeader, + atom(QXcbAtom::WM_CLIENT_LEADER), + XCB_ATOM_WINDOW, + 32, + 1, + &m_clientLeader)); + +#if !defined(QT_NO_SESSIONMANAGER) && defined(XCB_USE_SM) + // If we are session managed, inform the window manager about it + QByteArray session = qGuiApp->sessionId().toLatin1(); + if (!session.isEmpty()) { + Q_XCB_CALL(xcb_change_property(xcb_connection(), + XCB_PROP_MODE_REPLACE, + m_clientLeader, + atom(QXcbAtom::SM_CLIENT_ID), + XCB_ATOM_STRING, + 8, + session.length(), + session.constData())); + } +#endif + } + return m_clientLeader; +} + #ifdef XCB_USE_XLIB void *QXcbConnection::xlib_display() const { diff --git a/src/plugins/platforms/xcb/qxcbconnection.h b/src/plugins/platforms/xcb/qxcbconnection.h index 348af5f155..ee5ed8906a 100644 --- a/src/plugins/platforms/xcb/qxcbconnection.h +++ b/src/plugins/platforms/xcb/qxcbconnection.h @@ -403,6 +403,7 @@ public: QXcbWMSupport *wmSupport() const { return m_wmSupport.data(); } xcb_window_t rootWindow(); + xcb_window_t clientLeader(); bool hasDefaultVisualId() const { return m_defaultVisualId != UINT_MAX; } xcb_visualid_t defaultVisualId() const { return m_defaultVisualId; } @@ -640,6 +641,7 @@ private: QXcbWindow *m_focusWindow; + xcb_window_t m_clientLeader; QByteArray m_startupId; QXcbSystemTrayTracker *m_systemTrayTracker; QXcbGlIntegration *m_glIntegration; diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp index 040cea1cb2..c7f811491c 100644 --- a/src/plugins/platforms/xcb/qxcbscreen.cpp +++ b/src/plugins/platforms/xcb/qxcbscreen.cpp @@ -170,38 +170,6 @@ QXcbScreen::QXcbScreen(QXcbConnection *connection, QXcbVirtualDesktop *virtualDe else m_syncRequestSupported = true; - m_clientLeader = xcb_generate_id(xcb_connection()); - Q_XCB_CALL2(xcb_create_window(xcb_connection(), - XCB_COPY_FROM_PARENT, - m_clientLeader, - screen()->root, - 0, 0, 1, 1, - 0, - XCB_WINDOW_CLASS_INPUT_OUTPUT, - screen()->root_visual, - 0, 0), connection); -#ifndef QT_NO_DEBUG - QByteArray ba("Qt client leader window for screen "); - ba += m_outputName.toUtf8(); - Q_XCB_CALL2(xcb_change_property(xcb_connection(), - XCB_PROP_MODE_REPLACE, - m_clientLeader, - atom(QXcbAtom::_NET_WM_NAME), - atom(QXcbAtom::UTF8_STRING), - 8, - ba.length(), - ba.constData()), connection); -#endif - - Q_XCB_CALL2(xcb_change_property(xcb_connection(), - XCB_PROP_MODE_REPLACE, - m_clientLeader, - atom(QXcbAtom::WM_CLIENT_LEADER), - XCB_ATOM_WINDOW, - 32, - 1, - &m_clientLeader), connection); - xcb_depth_iterator_t depth_iterator = xcb_screen_allowed_depths_iterator(screen()); diff --git a/src/plugins/platforms/xcb/qxcbscreen.h b/src/plugins/platforms/xcb/qxcbscreen.h index 44519470e9..ccc30c0b84 100644 --- a/src/plugins/platforms/xcb/qxcbscreen.h +++ b/src/plugins/platforms/xcb/qxcbscreen.h @@ -116,8 +116,6 @@ public: xcb_randr_crtc_t crtc() const { return m_crtc; } xcb_randr_mode_t mode() const { return m_mode; } - xcb_window_t clientLeader() const { return m_clientLeader; } - void windowShown(QXcbWindow *window); QString windowManagerName() const { return m_windowManagerName; } bool syncRequestSupported() const { return m_syncRequestSupported; } @@ -173,7 +171,6 @@ private: Qt::ScreenOrientation m_orientation; QString m_windowManagerName; bool m_syncRequestSupported; - xcb_window_t m_clientLeader; QMap m_visuals; QMap m_visualDepths; QXcbCursor *m_cursor; diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp index 9c5609bb8d..af4a88b7bc 100644 --- a/src/plugins/platforms/xcb/qxcbwindow.cpp +++ b/src/plugins/platforms/xcb/qxcbwindow.cpp @@ -622,7 +622,7 @@ void QXcbWindow::create() xcb_set_wm_hints(xcb_connection(), m_window, &hints); - xcb_window_t leader = platformScreen->clientLeader(); + xcb_window_t leader = connection()->clientLeader(); Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, atom(QXcbAtom::WM_CLIENT_LEADER), XCB_ATOM_WINDOW, 32, 1, &leader)); @@ -874,7 +874,7 @@ void QXcbWindow::show() // Default to client leader if there is no transient parent, else modal dialogs can // be hidden by their parents. if (!transientXcbParent) - transientXcbParent = xcbScreen()->clientLeader(); + transientXcbParent = connection()->clientLeader(); if (transientXcbParent) { // ICCCM 4.1.2.6 Q_XCB_CALL(xcb_change_property(xcb_connection(), XCB_PROP_MODE_REPLACE, m_window, XCB_ATOM_WM_TRANSIENT_FOR, XCB_ATOM_WINDOW, 32,