From patchwork Mon Sep 9 06:15:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Volker_R=C3=BCmelin?= X-Patchwork-Id: 13795917 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D2211CE7AB0 for ; Mon, 9 Sep 2024 06:16:25 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1snXgz-0004Nz-Sb; Mon, 09 Sep 2024 02:16:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1snXgv-0004FR-VI for qemu-devel@nongnu.org; Mon, 09 Sep 2024 02:16:01 -0400 Received: from mailout07.t-online.de ([194.25.134.83]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1snXgt-0003T0-TV for qemu-devel@nongnu.org; Mon, 09 Sep 2024 02:16:01 -0400 Received: from fwd79.aul.t-online.de (fwd79.aul.t-online.de [10.223.144.105]) by mailout07.t-online.de (Postfix) with SMTP id 9E7489788; Mon, 9 Sep 2024 08:15:53 +0200 (CEST) Received: from linpower.localnet ([93.236.144.183]) by fwd79.t-online.de with (TLSv1.3:TLS_AES_256_GCM_SHA384 encrypted) esmtp id 1snXgn-2648G10; Mon, 9 Sep 2024 08:15:53 +0200 Received: by linpower.localnet (Postfix, from userid 1000) id D78AA2001CD; Mon, 9 Sep 2024 08:15:52 +0200 (CEST) From: =?utf-8?q?Volker_R=C3=BCmelin?= To: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Stefan Weil Cc: Howard Spoelstra , Bernhard Beschow , qemu-devel@nongnu.org Subject: [PATCH 1/3] ui/sdl2: reenable the SDL2 Windows keyboard hook procedure Date: Mon, 9 Sep 2024 08:15:50 +0200 Message-Id: <20240909061552.6122-1-vr_qemu@t-online.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 X-TOI-EXPURGATEID: 150726::1725862553-C17F05C5-241EE4EB/0/0 CLEAN NORMAL X-TOI-MSGID: d0bfdf8f-8f1d-4f78-bf43-e0f6ce2fc0bd Received-SPF: pass client-ip=194.25.134.83; envelope-from=volker.ruemelin@t-online.de; helo=mailout07.t-online.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Windows only: The libSDL2 Windows message loop needs the libSDL2 Windows low level keyboard hook procedure to grab the left and right Windows keys correctly. Reenable the SDL2 Windows keyboard hook procedure. Because the QEMU Windows keyboard hook procedure is still needed to filter out the special left Control key event for every Alt Gr key event, it's important to install the two keyboard hook procedures in the following order. First the SDL2 procedure, then the QEMU procedure. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2139 Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2323 Tested-by: Howard Spoelstra Signed-off-by: Volker Rümelin --- ui/sdl2.c | 53 ++++++++++++++++++++++++++++++--------------- ui/win32-kbd-hook.c | 3 +++ 2 files changed, 38 insertions(+), 18 deletions(-) diff --git a/ui/sdl2.c b/ui/sdl2.c index 98ed974371..ac37c173a1 100644 --- a/ui/sdl2.c +++ b/ui/sdl2.c @@ -42,6 +42,7 @@ static SDL_Surface *guest_sprite_surface; static int gui_grab; /* if true, all keyboard/mouse events are grabbed */ static bool alt_grab; static bool ctrl_grab; +static bool win32_kbd_grab; static int gui_saved_grab; static int gui_fullscreen; @@ -202,6 +203,19 @@ static void sdl_update_caption(struct sdl2_console *scon) } } +static void *sdl2_win32_get_hwnd(struct sdl2_console *scon) +{ +#ifdef CONFIG_WIN32 + SDL_SysWMinfo info; + + SDL_VERSION(&info.version); + if (SDL_GetWindowWMInfo(scon->real_window, &info)) { + return info.info.win.window; + } +#endif + return NULL; +} + static void sdl_hide_cursor(struct sdl2_console *scon) { if (scon->opts->has_show_cursor && scon->opts->show_cursor) { @@ -259,9 +273,16 @@ static void sdl_grab_start(struct sdl2_console *scon) } else { sdl_hide_cursor(scon); } + /* + * Windows: To ensure that QEMU's low level keyboard hook procedure is + * called before SDL2's, the QEMU procedure must first be removed and + * then the SDL2 and QEMU procedures must be installed in this order. + */ + win32_kbd_set_window(NULL); SDL_SetWindowGrab(scon->real_window, SDL_TRUE); + win32_kbd_set_window(sdl2_win32_get_hwnd(scon)); gui_grab = 1; - win32_kbd_set_grab(true); + win32_kbd_set_grab(win32_kbd_grab); sdl_update_caption(scon); } @@ -370,19 +391,6 @@ static int get_mod_state(void) } } -static void *sdl2_win32_get_hwnd(struct sdl2_console *scon) -{ -#ifdef CONFIG_WIN32 - SDL_SysWMinfo info; - - SDL_VERSION(&info.version); - if (SDL_GetWindowWMInfo(scon->real_window, &info)) { - return info.info.win.window; - } -#endif - return NULL; -} - static void handle_keydown(SDL_Event *ev) { int win; @@ -605,7 +613,7 @@ static void handle_windowevent(SDL_Event *ev) sdl2_redraw(scon); break; case SDL_WINDOWEVENT_FOCUS_GAINED: - win32_kbd_set_grab(gui_grab); + win32_kbd_set_grab(win32_kbd_grab && gui_grab); if (qemu_console_is_graphic(scon->dcl.con)) { win32_kbd_set_window(sdl2_win32_get_hwnd(scon)); } @@ -849,6 +857,7 @@ static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) uint8_t data = 0; int i; SDL_SysWMinfo info; + SDL_version ver; SDL_Surface *icon = NULL; char *dir; @@ -866,10 +875,7 @@ static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) #ifdef SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR /* only available since SDL 2.0.8 */ SDL_SetHint(SDL_HINT_VIDEO_X11_NET_WM_BYPASS_COMPOSITOR, "0"); #endif -#ifndef CONFIG_WIN32 - /* QEMU uses its own low level keyboard hook procedure on Windows */ SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1"); -#endif #ifdef SDL_HINT_ALLOW_ALT_TAB_WHILE_GRABBED SDL_SetHint(SDL_HINT_ALLOW_ALT_TAB_WHILE_GRABBED, "0"); #endif @@ -877,6 +883,17 @@ static void sdl2_display_init(DisplayState *ds, DisplayOptions *o) SDL_EnableScreenSaver(); memset(&info, 0, sizeof(info)); SDL_VERSION(&info.version); + /* + * Since version 2.16.0 under Windows, SDL2 has its own low level + * keyboard hook procedure to grab the keyboard. The remaining task of + * QEMU's low level keyboard hook procedure is to filter out the special + * left Control up/down key event for every Alt Gr key event on keyboards + * with an international layout. + */ + SDL_GetVersion(&ver); + if (ver.major == 2 && ver.minor < 16) { + win32_kbd_grab = true; + } gui_fullscreen = o->has_full_screen && o->full_screen; diff --git a/ui/win32-kbd-hook.c b/ui/win32-kbd-hook.c index 1ac237db9e..39d42134a2 100644 --- a/ui/win32-kbd-hook.c +++ b/ui/win32-kbd-hook.c @@ -91,6 +91,9 @@ void win32_kbd_set_window(void *hwnd) win32_unhook_notifier.notify = keyboard_hook_unhook; qemu_add_exit_notifier(&win32_unhook_notifier); } + } else if (!hwnd && win32_keyboard_hook) { + keyboard_hook_unhook(&win32_unhook_notifier, NULL); + qemu_remove_exit_notifier(&win32_unhook_notifier); } win32_window = hwnd; From patchwork Mon Sep 9 06:15:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Volker_R=C3=BCmelin?= X-Patchwork-Id: 13795919 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D596DCD4F4C for ; Mon, 9 Sep 2024 06:16:57 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1snXhR-0005dd-7n; Mon, 09 Sep 2024 02:16:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1snXhP-0005P1-D7 for qemu-devel@nongnu.org; Mon, 09 Sep 2024 02:16:31 -0400 Received: from mailout08.t-online.de ([194.25.134.20]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1snXhN-0003WM-9B for qemu-devel@nongnu.org; Mon, 09 Sep 2024 02:16:31 -0400 Received: from fwd87.aul.t-online.de (fwd87.aul.t-online.de [10.223.144.113]) by mailout08.t-online.de (Postfix) with SMTP id BE08F1BC8C; Mon, 9 Sep 2024 08:15:56 +0200 (CEST) Received: from linpower.localnet ([93.236.144.183]) by fwd87.t-online.de with (TLSv1.3:TLS_AES_256_GCM_SHA384 encrypted) esmtp id 1snXgp-1kVRWD0; Mon, 9 Sep 2024 08:15:55 +0200 Received: by linpower.localnet (Postfix, from userid 1000) id D9E3F200364; Mon, 9 Sep 2024 08:15:52 +0200 (CEST) From: =?utf-8?q?Volker_R=C3=BCmelin?= To: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Stefan Weil Cc: Howard Spoelstra , Bernhard Beschow , qemu-devel@nongnu.org Subject: [PATCH 2/3] ui/sdl2: release all modifiers Date: Mon, 9 Sep 2024 08:15:51 +0200 Message-Id: <20240909061552.6122-2-vr_qemu@t-online.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 X-TOI-EXPURGATEID: 150726::1725862555-EAFFB5E9-177AB33E/0/0 CLEAN NORMAL X-TOI-MSGID: ac1a4aa1-d33d-4afc-9b1a-b40a24cc6470 Received-SPF: pass client-ip=194.25.134.20; envelope-from=volker.ruemelin@t-online.de; helo=mailout08.t-online.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Each virtual console in the SDL2 frontend has a key state map. When switching windows with GUI keys we have to release all pressed modifier keys in the currently active window, because after the switch the now inactive window no longer receives the key release events. To reproduce the issue open a text editor in the SDL UI and then press Ctrl-Alt-2 to open a Compat Monitor Console. Close the console with the mouse. Try to enter text in the text editor and notice that the modifier keys Ctrl and Alt are stuck and need to be pressed once to be released. Tested-by: Howard Spoelstra Signed-off-by: Volker Rümelin --- include/ui/sdl2.h | 1 + ui/sdl2-input.c | 5 +++++ ui/sdl2.c | 1 + 3 files changed, 7 insertions(+) diff --git a/include/ui/sdl2.h b/include/ui/sdl2.h index e3acc7c82a..6907115809 100644 --- a/include/ui/sdl2.h +++ b/include/ui/sdl2.h @@ -60,6 +60,7 @@ void sdl2_poll_events(struct sdl2_console *scon); void sdl2_process_key(struct sdl2_console *scon, SDL_KeyboardEvent *ev); +void sdl2_release_modifiers(struct sdl2_console *scon); void sdl2_2d_update(DisplayChangeListener *dcl, int x, int y, int w, int h); diff --git a/ui/sdl2-input.c b/ui/sdl2-input.c index b02a89ee7c..2286df4223 100644 --- a/ui/sdl2-input.c +++ b/ui/sdl2-input.c @@ -58,3 +58,8 @@ void sdl2_process_key(struct sdl2_console *scon, } } } + +void sdl2_release_modifiers(struct sdl2_console *scon) +{ + qkbd_state_lift_all_keys(scon->kbd); +} diff --git a/ui/sdl2.c b/ui/sdl2.c index ac37c173a1..9d9a9362cb 100644 --- a/ui/sdl2.c +++ b/ui/sdl2.c @@ -426,6 +426,7 @@ static void handle_keydown(SDL_Event *ev) SDL_ShowWindow(sdl2_console[win].real_window); } } + sdl2_release_modifiers(scon); gui_keysym = 1; } break; From patchwork Mon Sep 9 06:15:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Volker_R=C3=BCmelin?= X-Patchwork-Id: 13795918 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6AD3AE6FE49 for ; Mon, 9 Sep 2024 06:16:39 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1snXgy-0004H6-8K; Mon, 09 Sep 2024 02:16:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1snXgw-0004FS-0m for qemu-devel@nongnu.org; Mon, 09 Sep 2024 02:16:02 -0400 Received: from mailout07.t-online.de ([194.25.134.83]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1snXgu-0003T9-CB for qemu-devel@nongnu.org; Mon, 09 Sep 2024 02:16:01 -0400 Received: from fwd71.aul.t-online.de (fwd71.aul.t-online.de [10.223.144.97]) by mailout07.t-online.de (Postfix) with SMTP id AB9F738DC; Mon, 9 Sep 2024 08:15:58 +0200 (CEST) Received: from linpower.localnet ([93.236.144.183]) by fwd71.t-online.de with (TLSv1.3:TLS_AES_256_GCM_SHA384 encrypted) esmtp id 1snXgr-0s6EZV0; Mon, 9 Sep 2024 08:15:57 +0200 Received: by linpower.localnet (Postfix, from userid 1000) id DC322200442; Mon, 9 Sep 2024 08:15:52 +0200 (CEST) From: =?utf-8?q?Volker_R=C3=BCmelin?= To: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Stefan Weil Cc: Howard Spoelstra , Bernhard Beschow , qemu-devel@nongnu.org Subject: [PATCH 3/3] ui/sdl2: ignore GUI keys in SDL_TEXTINPUT handler Date: Mon, 9 Sep 2024 08:15:52 +0200 Message-Id: <20240909061552.6122-3-vr_qemu@t-online.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 X-TOI-EXPURGATEID: 150726::1725862558-4E7F241D-0244F0DC/0/0 CLEAN NORMAL X-TOI-MSGID: 9d54a0aa-9e48-48e4-869c-87dc911b8714 Received-SPF: pass client-ip=194.25.134.83; envelope-from=volker.ruemelin@t-online.de; helo=mailout07.t-online.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Ignore GUI keys for SDL_TEXTINPUT events, just like GUI keys are ignored for SDL_KEYDOWN events. This prevents unintended text input in a text console when hiding the text console with the GUI keys. The SDL_TEXTINPUT event always comes after the SDL_KEYDOWN event. See libsdl-org/SDL issue #1659. Tested-by: Howard Spoelstra Signed-off-by: Volker Rümelin --- include/ui/sdl2.h | 1 + ui/sdl2.c | 17 +++++++++-------- 2 files changed, 10 insertions(+), 8 deletions(-) diff --git a/include/ui/sdl2.h b/include/ui/sdl2.h index 6907115809..dbe6e3d973 100644 --- a/include/ui/sdl2.h +++ b/include/ui/sdl2.h @@ -42,6 +42,7 @@ struct sdl2_console { int updates; int idle_counter; int ignore_hotkeys; + bool gui_keysym; SDL_GLContext winctx; QKbdState *kbd; #ifdef CONFIG_OPENGL diff --git a/ui/sdl2.c b/ui/sdl2.c index 9d9a9362cb..cb1acd4499 100644 --- a/ui/sdl2.c +++ b/ui/sdl2.c @@ -396,12 +396,13 @@ static void handle_keydown(SDL_Event *ev) int win; struct sdl2_console *scon = get_scon_from_window(ev->key.windowID); int gui_key_modifier_pressed = get_mod_state(); - int gui_keysym = 0; if (!scon) { return; } + scon->gui_keysym = false; + if (!scon->ignore_hotkeys && gui_key_modifier_pressed && !ev->key.repeat) { switch (ev->key.keysym.scancode) { case SDL_SCANCODE_2: @@ -427,15 +428,15 @@ static void handle_keydown(SDL_Event *ev) } } sdl2_release_modifiers(scon); - gui_keysym = 1; + scon->gui_keysym = true; } break; case SDL_SCANCODE_F: toggle_full_screen(scon); - gui_keysym = 1; + scon->gui_keysym = true; break; case SDL_SCANCODE_G: - gui_keysym = 1; + scon->gui_keysym = true; if (!gui_grab) { sdl_grab_start(scon); } else if (!gui_fullscreen) { @@ -448,7 +449,7 @@ static void handle_keydown(SDL_Event *ev) /* re-create scon->texture */ sdl2_2d_switch(&scon->dcl, scon->surface); } - gui_keysym = 1; + scon->gui_keysym = true; break; #if 0 case SDL_SCANCODE_KP_PLUS: @@ -467,14 +468,14 @@ static void handle_keydown(SDL_Event *ev) __func__, width, height); sdl_scale(scon, width, height); sdl2_redraw(scon); - gui_keysym = 1; + scon->gui_keysym = true; } #endif default: break; } } - if (!gui_keysym) { + if (!scon->gui_keysym) { sdl2_process_key(scon, &ev->key); } } @@ -500,7 +501,7 @@ static void handle_textinput(SDL_Event *ev) return; } - if (QEMU_IS_TEXT_CONSOLE(con)) { + if (!scon->gui_keysym && QEMU_IS_TEXT_CONSOLE(con)) { qemu_text_console_put_string(QEMU_TEXT_CONSOLE(con), ev->text.text, strlen(ev->text.text)); } }