1 files changed, 196 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/video/wayland/SDL_waylandmessagebox.c b/contrib/SDL-3.2.8/src/video/wayland/SDL_waylandmessagebox.c
new file mode 100644
index 0000000..3d6f1f8
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/video/wayland/SDL_waylandmessagebox.c
@@ -0,0 +1,196 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include "SDL_internal.h"
+
+#ifdef SDL_VIDEO_DRIVER_WAYLAND
+
+#include "SDL_waylandmessagebox.h"
+
+#define ZENITY_VERSION_LEN 32 // Number of bytes to read from zenity --version (including NUL)
+
+#define MAX_BUTTONS 8 // Maximum number of buttons supported
+
+static bool parse_zenity_version(const char *version, int *major, int *minor)
+{
+    /* We expect the version string is in the form of MAJOR.MINOR.MICRO
+     * as described in meson.build. We'll ignore everything after that.
+     */
+    const char *version_ptr = version;
+    char *end_ptr = NULL;
+    int tmp = (int) SDL_strtol(version_ptr, &end_ptr, 10);
+    if (tmp == 0 && end_ptr == version_ptr) {
+        return SDL_SetError("failed to get zenity major version number");
+    }
+    *major = tmp;
+
+    if (*end_ptr == '.') {
+        version_ptr = end_ptr + 1; // skip the dot
+        tmp = (int) SDL_strtol(version_ptr, &end_ptr, 10);
+        if (tmp == 0 && end_ptr == version_ptr) {
+            return SDL_SetError("failed to get zenity minor version number");
+        }
+        *minor = tmp;
+    } else {
+        *minor = 0;
+    }
+    return true;
+}
+
+static bool get_zenity_version(int *major, int *minor)
+{
+    const char *argv[] = { "zenity", "--version", NULL };
+    bool result = false;
+
+    SDL_Process *process = SDL_CreateProcess(argv, true);
+    if (!process) {
+        return false;
+    }
+
+    char *output = SDL_ReadProcess(process, NULL, NULL);
+    if (output) {
+        result = parse_zenity_version(output, major, minor);
+        SDL_free(output);
+    }
+    SDL_DestroyProcess(process);
+
+    return result;
+}
+
+bool Wayland_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonID)
+{
+    int zenity_major = 0, zenity_minor = 0, output_len = 0;
+    int argc = 5, i;
+    const char *argv[5 + 2 /* icon name */ + 2 /* title */ + 2 /* message */ + 2 * MAX_BUTTONS + 1 /* NULL */] = {
+        "zenity", "--question", "--switch", "--no-wrap", "--no-markup"
+    };
+    SDL_Process *process;
+
+    // Are we trying to connect to or are currently in a Wayland session?
+    if (!SDL_getenv("WAYLAND_DISPLAY")) {
+        const char *session = SDL_getenv("XDG_SESSION_TYPE");
+        if (session && SDL_strcasecmp(session, "wayland") != 0) {
+            return SDL_SetError("Not on a wayland display");
+        }
+    }
+
+    if (messageboxdata->numbuttons > MAX_BUTTONS) {
+        return SDL_SetError("Too many buttons (%d max allowed)", MAX_BUTTONS);
+    }
+
+    // get zenity version so we know which arg to use
+    if (!get_zenity_version(&zenity_major, &zenity_minor)) {
+        return false; // get_zenity_version() calls SDL_SetError(), so message is already set
+    }
+
+    /* https://gitlab.gnome.org/GNOME/zenity/-/commit/c686bdb1b45e95acf010efd9ca0c75527fbb4dea
+     * This commit removed --icon-name without adding a deprecation notice.
+     * We need to handle it gracefully, otherwise no message box will be shown.
+     */
+    argv[argc++] = zenity_major > 3 || (zenity_major == 3 && zenity_minor >= 90) ? "--icon" : "--icon-name";
+    switch (messageboxdata->flags & (SDL_MESSAGEBOX_ERROR | SDL_MESSAGEBOX_WARNING | SDL_MESSAGEBOX_INFORMATION)) {
+    case SDL_MESSAGEBOX_ERROR:
+        argv[argc++] = "dialog-error";
+        break;
+    case SDL_MESSAGEBOX_WARNING:
+        argv[argc++] = "dialog-warning";
+        break;
+    case SDL_MESSAGEBOX_INFORMATION:
+    default:
+        argv[argc++] = "dialog-information";
+        break;
+    }
+
+    if (messageboxdata->title && messageboxdata->title[0]) {
+        argv[argc++] = "--title";
+        argv[argc++] = messageboxdata->title;
+    } else {
+        argv[argc++] = "--title=";
+    }
+
+    if (messageboxdata->message && messageboxdata->message[0]) {
+        argv[argc++] = "--text";
+        argv[argc++] = messageboxdata->message;
+    } else {
+        argv[argc++] = "--text=";
+    }
+
+    for (i = 0; i < messageboxdata->numbuttons; ++i) {
+        if (messageboxdata->buttons[i].text && messageboxdata->buttons[i].text[0]) {
+            int len = SDL_strlen(messageboxdata->buttons[i].text);
+            if (len > output_len) {
+                output_len = len;
+            }
+
+            argv[argc++] = "--extra-button";
+            argv[argc++] = messageboxdata->buttons[i].text;
+        } else {
+            argv[argc++] = "--extra-button=";
+        }
+    }
+    if (messageboxdata->numbuttons == 0) {
+        argv[argc++] = "--extra-button=OK";
+    }
+    argv[argc] = NULL;
+
+    SDL_PropertiesID props = SDL_CreateProperties();
+    if (!props) {
+        return false;
+    }
+    SDL_SetPointerProperty(props, SDL_PROP_PROCESS_CREATE_ARGS_POINTER, argv);
+    // If buttonID is set we need to wait and read the results
+    if (buttonID) {
+        SDL_SetNumberProperty(props, SDL_PROP_PROCESS_CREATE_STDOUT_NUMBER, SDL_PROCESS_STDIO_APP);
+    } else {
+        SDL_SetNumberProperty(props, SDL_PROP_PROCESS_CREATE_STDOUT_NUMBER, SDL_PROCESS_STDIO_NULL);
+    }
+    process = SDL_CreateProcessWithProperties(props);
+    SDL_DestroyProperties(props);
+    if (!process) {
+        return false;
+    }
+    if (buttonID) {
+        char *output = SDL_ReadProcess(process, NULL, NULL);
+        if (output) {
+            // It likes to add a newline...
+            char *tmp = SDL_strrchr(output, '\n');
+            if (tmp) {
+                *tmp = '\0';
+            }
+
+            // Check which button got pressed
+            for (i = 0; i < messageboxdata->numbuttons; i += 1) {
+                if (messageboxdata->buttons[i].text) {
+                    if (SDL_strcmp(output, messageboxdata->buttons[i].text) == 0) {
+                        *buttonID = messageboxdata->buttons[i].buttonID;
+                        break;
+                    }
+                }
+            }
+            SDL_free(output);
+        }
+    }
+    SDL_DestroyProcess(process);
+
+    return true;
+}
+
+#endif // SDL_VIDEO_DRIVER_WAYLAND