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+/*
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+ Simple DirectMedia Layer
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+ Copyright (C) 1997-2025 Sam Lantinga <[email protected]>
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+
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+ This software is provided 'as-is', without any express or implied
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+ warranty. In no event will the authors be held liable for any damages
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+ arising from the use of this software.
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+
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+ Permission is granted to anyone to use this software for any purpose,
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+ including commercial applications, and to alter it and redistribute it
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+ freely, subject to the following restrictions:
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+
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+ 1. The origin of this software must not be misrepresented; you must not
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+ claim that you wrote the original software. If you use this software
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+ in a product, an acknowledgment in the product documentation would be
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+ appreciated but is not required.
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+ 2. Altered source versions must be plainly marked as such, and must not be
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+ misrepresented as being the original software.
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+ 3. This notice may not be removed or altered from any source distribution.
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+*/
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+#include "SDL_progressbar.h"
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+#include "SDL_internal.h"
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+
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+#include "SDL_dbus.h"
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+
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+#ifdef SDL_USE_LIBDBUS
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+
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+#include <unistd.h>
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+
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+#include "../unix/SDL_appid.h"
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+
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+#define UnityLauncherAPI_DBUS_INTERFACE "com.canonical.Unity.LauncherEntry"
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+#define UnityLauncherAPI_DBUS_SIGNAL "Update"
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+
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+static char *GetDBUSObjectPath()
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+{
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+ char *app_id = SDL_strdup(SDL_GetAppID());
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+
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+ if (!app_id) {
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+ return NULL;
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+ }
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+
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+ // Sanitize exe_name to make it a legal D-Bus path element
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+ for (char *p = app_id; *p; ++p) {
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+ if (!SDL_isalnum(*p)) {
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+ *p = '_';
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+ }
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+ }
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+
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+ // Ensure it starts with a letter or underscore
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+ if (!SDL_isalpha(app_id[0]) && app_id[0] != '_') {
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+ SDL_memmove(app_id + 1, app_id, SDL_strlen(app_id) + 1);
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+ app_id[0] = '_';
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+ }
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+
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+ // Create full path
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+ char path[1024];
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+ SDL_snprintf(path, sizeof(path), "/org/libsdl/%s_%d", app_id, getpid());
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+
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+ SDL_free(app_id);
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+
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+ return SDL_strdup(path);
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+}
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+
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+static char *GetAppDesktopPath()
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+{
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+ const char *desktop_suffix = ".desktop";
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+ const char *app_id = SDL_GetAppID();
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+ const size_t desktop_path_total_length = SDL_strlen(app_id) + SDL_strlen(desktop_suffix) + 1;
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+ char *desktop_path = (char *)SDL_malloc(desktop_path_total_length);
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+ if (!desktop_path) {
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+ return NULL;
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+ }
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+ *desktop_path = '\0';
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+ SDL_strlcat(desktop_path, app_id, desktop_path_total_length);
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+ SDL_strlcat(desktop_path, desktop_suffix, desktop_path_total_length);
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+
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+ return desktop_path;
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+}
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+
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+static int ShouldShowProgress(SDL_ProgressState progressState)
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+{
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+ if (progressState == SDL_PROGRESS_STATE_INVALID ||
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+ progressState == SDL_PROGRESS_STATE_NONE) {
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+ return 0;
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+ }
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+
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+ // Unity LauncherAPI only supports "normal" display of progress
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+ return 1;
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+}
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+
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+bool DBUS_ApplyWindowProgress(SDL_VideoDevice *_this, SDL_Window *window)
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+{
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+ // Signal signature:
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+ // signal com.canonical.Unity.LauncherEntry.Update (in s app_uri, in a{sv} properties)
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+
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+ SDL_DBusContext *dbus = SDL_DBus_GetContext();
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+
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+ if (!dbus || !dbus->session_conn) {
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+ return false;
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+ }
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+
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+ char *objectPath = GetDBUSObjectPath();
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+ if (!objectPath) {
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+ return false;
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+ }
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+
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+ DBusMessage *msg = dbus->message_new_signal(objectPath, UnityLauncherAPI_DBUS_INTERFACE, UnityLauncherAPI_DBUS_SIGNAL);
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+ if (!msg) {
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+ SDL_free(objectPath);
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+ return false;
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+ }
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+
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+ char *desktop_path = GetAppDesktopPath();
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+ if (!desktop_path) {
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+ dbus->message_unref(msg);
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+ SDL_free(objectPath);
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+ return false;
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+ }
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+
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+ const char *progress_visible_str = "progress-visible";
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+ const char *progress_str = "progress";
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+ int dbus_type_boolean_str = DBUS_TYPE_BOOLEAN;
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+ int dbus_type_double_str = DBUS_TYPE_DOUBLE;
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+
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+ const int progress_visible = ShouldShowProgress(window->progress_state);
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+ double progress = (double)window->progress_value;
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+
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+ DBusMessageIter args, props;
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+ dbus->message_iter_init_append(msg, &args);
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+ dbus->message_iter_append_basic(&args, DBUS_TYPE_STRING, &desktop_path); // Setup app_uri paramter
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+ dbus->message_iter_open_container(&args, DBUS_TYPE_ARRAY, "{sv}", &props); // Setup properties parameter
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+ DBusMessageIter key_it, value_it;
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+ // Set progress visible property
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+ dbus->message_iter_open_container(&props, DBUS_TYPE_DICT_ENTRY, NULL, &key_it);
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+ dbus->message_iter_append_basic(&key_it, DBUS_TYPE_STRING, &progress_visible_str); // Append progress-visible key data
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+ dbus->message_iter_open_container(&key_it, DBUS_TYPE_VARIANT, (const char *)&dbus_type_boolean_str, &value_it);
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+ dbus->message_iter_append_basic(&value_it, DBUS_TYPE_BOOLEAN, &progress_visible); // Append progress-visible value data
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+ dbus->message_iter_close_container(&key_it, &value_it);
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+ dbus->message_iter_close_container(&props, &key_it);
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+ // Set progress value property
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+ dbus->message_iter_open_container(&props, DBUS_TYPE_DICT_ENTRY, NULL, &key_it);
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+ dbus->message_iter_append_basic(&key_it, DBUS_TYPE_STRING, &progress_str); // Append progress key data
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+ dbus->message_iter_open_container(&key_it, DBUS_TYPE_VARIANT, (const char *)&dbus_type_double_str, &value_it);
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+ dbus->message_iter_append_basic(&value_it, DBUS_TYPE_DOUBLE, &progress); // Append progress value data
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+ dbus->message_iter_close_container(&key_it, &value_it);
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+ dbus->message_iter_close_container(&props, &key_it);
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+ dbus->message_iter_close_container(&args, &props);
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+
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+ dbus->connection_send(dbus->session_conn, msg, NULL);
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+
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+ SDL_free(desktop_path);
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+ dbus->message_unref(msg);
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+ SDL_free(objectPath);
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+
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+ return true;
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+}
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+
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+#endif // SDL_USE_LIBDBUS
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