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Tue, 07 Nov 2023 21:21:48 -0500 Received: from localhost.localdomain (unknown [192.168.1.254]) (Authenticated sender: admin@xutaxkamay.com) by xutaxkamay.com (Postfix) with ESMTPSA id E6C6924565; Wed, 8 Nov 2023 02:21:41 +0000 (GMT) From: Kamay Xutax To: qemu-devel@nongnu.org Cc: Kamay Xutax Subject: [PATCH RFC v1 1/1] ui/sdl2: clipboard sharing implementation for SDL Date: Wed, 8 Nov 2023 03:21:39 +0100 Message-ID: <20231108022139.12503-2-admin@xutaxkamay.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231108022139.12503-1-admin@xutaxkamay.com> References: <20231108022139.12503-1-admin@xutaxkamay.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=82.65.208.52; envelope-from=admin@xutaxkamay.com; helo=xutaxkamay.com X-Spam_score_int: 14 X-Spam_score: 1.4 X-Spam_bar: + X-Spam_report: (1.4 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_PBL=3.335, RCVD_IN_SORBS_DUL=0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 08 Nov 2023 10:54:37 -0500 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1699458934164100007 Content-Type: text/plain; charset="utf-8" Signed-off-by: Kamay Xutax --- include/ui/sdl2.h | 5 ++ meson.build | 1 + ui/meson.build | 1 + ui/sdl2-clipboard.c | 147 ++++++++++++++++++++++++++++++++++++++++++++ ui/sdl2.c | 8 +++ 5 files changed, 162 insertions(+) create mode 100644 ui/sdl2-clipboard.c diff --git a/include/ui/sdl2.h b/include/ui/sdl2.h index e3acc7c82a..120fe6f856 100644 --- a/include/ui/sdl2.h +++ b/include/ui/sdl2.h @@ -21,6 +21,7 @@ # include #endif =20 +#include "ui/clipboard.h" #include "ui/kbd-state.h" #ifdef CONFIG_OPENGL # include "ui/egl-helpers.h" @@ -51,6 +52,7 @@ struct sdl2_console { bool y0_top; bool scanout_mode; #endif + QemuClipboardPeer cbpeer; }; =20 void sdl2_window_create(struct sdl2_console *scon); @@ -70,6 +72,9 @@ void sdl2_2d_redraw(struct sdl2_console *scon); bool sdl2_2d_check_format(DisplayChangeListener *dcl, pixman_format_code_t format); =20 +void sdl2_clipboard_handle_request(struct sdl2_console *scon); +void sdl2_clipboard_init(struct sdl2_console *scon); + void sdl2_gl_update(DisplayChangeListener *dcl, int x, int y, int w, int h); void sdl2_gl_switch(DisplayChangeListener *dcl, diff --git a/meson.build b/meson.build index 4848930680..1358d14b2e 100644 --- a/meson.build +++ b/meson.build @@ -2157,6 +2157,7 @@ config_host_data.set('CONFIG_RDMA', rdma.found()) config_host_data.set('CONFIG_RELOCATABLE', get_option('relocatable')) config_host_data.set('CONFIG_SAFESTACK', get_option('safe_stack')) config_host_data.set('CONFIG_SDL', sdl.found()) +config_host_data.set('CONFIG_SDL_CLIPBOARD', sdl.found()) config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found()) config_host_data.set('CONFIG_SECCOMP', seccomp.found()) if seccomp.found() diff --git a/ui/meson.build b/ui/meson.build index 0ccb3387ee..0cadd1a18f 100644 --- a/ui/meson.build +++ b/ui/meson.build @@ -125,6 +125,7 @@ if sdl.found() sdl_ss =3D ss.source_set() sdl_ss.add(sdl, sdl_image, pixman, glib, files( 'sdl2-2d.c', + 'sdl2-clipboard.c', 'sdl2-input.c', 'sdl2.c', )) diff --git a/ui/sdl2-clipboard.c b/ui/sdl2-clipboard.c new file mode 100644 index 0000000000..405bb9ea8b --- /dev/null +++ b/ui/sdl2-clipboard.c @@ -0,0 +1,147 @@ +/* + * SDL UI -- clipboard support + * + * Copyright (C) 2023 Kamay Xutax + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + * + */ + +#include "qemu/osdep.h" +#include "qemu/main-loop.h" +#include "ui/sdl2.h" + +static void sdl2_clipboard_update(struct sdl2_console *scon, + QemuClipboardInfo *info) +{ + bool self_update =3D info->owner =3D=3D &scon->cbpeer; + char *text; + size_t text_size; + + /* + * In case of a self update, + * set again the text in SDL + * + * This is a workaround for hosts that have clipboard history + * or when they're copying again something, + * so that SDL can accept a new request from the host + * and make a new SDL_CLIPBOARDUPDATE event + */ + + if (self_update) { + text =3D SDL_GetClipboardText(); + SDL_SetClipboardText(text); + SDL_free(text); + return; + } + + if (!info->types[QEMU_CLIPBOARD_TYPE_TEXT].available) { + return; + } + + info =3D qemu_clipboard_info_ref(info); + qemu_clipboard_request(info, QEMU_CLIPBOARD_TYPE_TEXT); + + while (info =3D=3D qemu_clipboard_info(info->selection) && + info->types[QEMU_CLIPBOARD_TYPE_TEXT].available && + info->types[QEMU_CLIPBOARD_TYPE_TEXT].data =3D=3D NULL) { + main_loop_wait(false); + } + + /* clipboard info changed while waiting for data */ + if (info !=3D qemu_clipboard_info(info->selection)) { + qemu_clipboard_info_unref(info); + return; + } + + /* text is not null terminated in cb info, so we need to copy it */ + text_size =3D info->types[QEMU_CLIPBOARD_TYPE_TEXT].size; + + if (!text_size) { + qemu_clipboard_info_unref(info); + return; + } + + text =3D malloc(text_size + 1); + + if (!text) { + qemu_clipboard_info_unref(info); + return; + } + + text[text_size] =3D 0; + memcpy(text, info->types[QEMU_CLIPBOARD_TYPE_TEXT].data, text_size); + /* unref as soon we copied the text */ + qemu_clipboard_info_unref(info); + SDL_SetClipboardText(text); + + free(text); +} + +static void sdl2_clipboard_notify(Notifier *notifier, + void *data) +{ + QemuClipboardNotify *notify =3D data; + struct sdl2_console *scon =3D + container_of(notifier, struct sdl2_console, cbpeer.notifier); + + switch (notify->type) { + case QEMU_CLIPBOARD_UPDATE_INFO: + sdl2_clipboard_update(scon, notify->info); + break; + case QEMU_CLIPBOARD_RESET_SERIAL: + break; + } +} + +static void sdl2_clipboard_request(QemuClipboardInfo *info, + QemuClipboardType type) +{ + struct sdl2_console *scon =3D + container_of(info->owner, struct sdl2_console, cbpeer); + char *text; + + switch (type) { + case QEMU_CLIPBOARD_TYPE_TEXT: + if (!SDL_HasClipboardText()) { + return; + } + + text =3D SDL_GetClipboardText(); + qemu_clipboard_set_data(&scon->cbpeer, info, type, + strlen(text), text, true); + + SDL_free(text); + break; + default: + return; + } +} + +void sdl2_clipboard_handle_request(struct sdl2_console *scon) +{ + g_autoptr(QemuClipboardInfo) info =3D + qemu_clipboard_info_new(&scon->cbpeer, + QEMU_CLIPBOARD_SELECTION_CLIPBOARD); + + sdl2_clipboard_request(info, QEMU_CLIPBOARD_TYPE_TEXT); +} + +void sdl2_clipboard_init(struct sdl2_console *scon) +{ + scon->cbpeer.name =3D "sdl2"; + scon->cbpeer.notifier.notify =3D sdl2_clipboard_notify; + /* requests will be handled from the SDL event loop */ + qemu_clipboard_peer_register(&scon->cbpeer); +} diff --git a/ui/sdl2.c b/ui/sdl2.c index fbfdb64e90..d674add7c5 100644 --- a/ui/sdl2.c +++ b/ui/sdl2.c @@ -702,6 +702,11 @@ void sdl2_poll_events(struct sdl2_console *scon) case SDL_WINDOWEVENT: handle_windowevent(ev); break; +#if defined(CONFIG_SDL_CLIPBOARD) + case SDL_CLIPBOARDUPDATE: + sdl2_clipboard_handle_request(scon); + break; +#endif default: break; } @@ -922,6 +927,9 @@ static void sdl2_display_init(DisplayState *ds, Display= Options *o) qemu_console_set_window_id(con, info.info.x11.window); #endif } +#endif +#if defined(CONFIG_SDL_CLIPBOARD) + sdl2_clipboard_init(&sdl2_console[i]); #endif } =20 --=20 2.41.0