glfwSetWindowsTaskbarBadge() Added Linux implementation

src/posix_dbus.c

@@ -220,3 +220,94 @@ void _glfwUpdateTaskbarProgressDBusPOSIX(dbus_bool_t progressVisible, double pro
     //Free the message
     dbus_message_unref(msg);
 }
+
+void _glfwUpdateTaskbarBadgeDBusPOSIX(dbus_bool_t badgeVisible, int badgeCount)
+{
+    if(!_glfw.dbus.handle || !_glfw.dbus.connection)
+        return;
+
+    long long badgeCountLL = badgeCount;
+
+    //Signal signature:
+    //signal com.canonical.Unity.LauncherEntry.Update (in s app_uri, in a{sv} properties)
+
+    struct DBusMessageIter args;
+    memset(&args, 0, sizeof(args));
+
+    //Get name of the running executable
+    char exeName[PATH_MAX];
+    memset(exeName, 0, sizeof(char) * PATH_MAX);
+    if(readlink("/proc/self/exe", exeName, PATH_MAX) == -1)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Failed to get name of the running executable");
+        return;
+    }
+    char* exeNameEnd = strchr(exeName, '\0');
+    char* lastFound = strrchr(exeName, '/');
+    if(!lastFound || !exeNameEnd)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Failed to get name of the running executable");
+        return;
+    }
+    unsigned int exeNameLength = (exeNameEnd - lastFound) - 1;
+
+    //Create our final desktop file uri
+    unsigned int desktopFileLength = strlen("application://") + exeNameLength + strlen(".desktop") + 1;
+    char desktopFile[desktopFileLength];
+    memset(desktopFile, 0, sizeof(char) * desktopFileLength);
+    strcpy(desktopFile, "application://");
+    memcpy(desktopFile + strlen("application://"), lastFound + 1, exeNameLength);
+    strcpy(desktopFile + strlen("application://") + (exeNameLength), ".desktop");
+    desktopFile[desktopFileLength - 1] = '\0';
+
+    DBusMessage* msg = dbus_message_new_signal("/org/glfw", "com.canonical.Unity.LauncherEntry", "Update");
+    if(!msg)
+    {
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Failed to create new DBus message");
+        return;
+    }
+
+    dbus_message_iter_init_append(msg, &args);
+
+    //Setup app_uri parameter
+    const char* desktopFileStr = desktopFile;
+    dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &desktopFileStr);
+
+    //Set properties parameter
+    struct DBusMessageIter sub1, sub2, sub3;
+    memset(&sub1, 0, sizeof(sub1));
+    memset(&sub2, 0, sizeof(sub2));
+    memset(&sub3, 0, sizeof(sub3));
+
+    dbus_message_iter_open_container(&args, DBUS_TYPE_ARRAY, "{sv}", &sub1);
+
+    //Set count visible property
+    dbus_message_iter_open_container(&sub1, DBUS_TYPE_DICT_ENTRY, NULL, &sub2);
+    const char* countVisibleStr = "count-visible";
+    dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &countVisibleStr);
+    dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "b", &sub3);
+    dbus_message_iter_append_basic(&sub3, DBUS_TYPE_BOOLEAN, &badgeVisible);
+    dbus_message_iter_close_container(&sub2, &sub3);
+    dbus_message_iter_close_container(&sub1, &sub2);
+
+    //Set count value property
+    dbus_message_iter_open_container(&sub1, DBUS_TYPE_DICT_ENTRY, NULL, &sub2);
+    const char* countValueStr = "count";
+    dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &countValueStr);
+    dbus_message_iter_open_container(&sub2, DBUS_TYPE_VARIANT, "x", &sub3);
+    dbus_message_iter_append_basic(&sub3, DBUS_TYPE_INT64, &badgeCountLL);
+    dbus_message_iter_close_container(&sub2, &sub3);
+    dbus_message_iter_close_container(&sub1, &sub2);
+
+    dbus_message_iter_close_container(&args, &sub1);
+
+    //Finally send the signal
+    unsigned int serial = 0;
+    if(!dbus_connection_send(_glfw.dbus.connection, msg, &serial))
+        _glfwInputError(GLFW_PLATFORM_ERROR, "Failed to send DBus message");
+    else
+        dbus_connection_flush(_glfw.dbus.connection);
+
+    //Free the message
+    dbus_message_unref(msg);
+}

src/posix_dbus.h

@@ -69,6 +69,7 @@ struct DBusMessageIter
 #define DBUS_TYPE_VARIANT (unsigned int)'v'
 #define DBUS_TYPE_BOOLEAN (unsigned int)'b'
 #define DBUS_TYPE_DOUBLE (unsigned int)'d'
+#define DBUS_TYPE_INT64 (unsigned int)'x'
 
 typedef void (* PFN_dbus_error_init)(struct DBusError*);
 typedef dbus_bool_t (* PFN_dbus_error_is_set)(const struct DBusError*);
@@ -130,3 +131,4 @@ typedef struct _GLFWDBusPOSIX
 void _glfwInitDBusPOSIX(void);
 void _glfwTerminateDBusPOSIX(void);
 void _glfwUpdateTaskbarProgressDBusPOSIX(dbus_bool_t progressVisible, double progressValue);
+void _glfwUpdateTaskbarBadgeDBusPOSIX(dbus_bool_t badgeVisible, int badgeCount);

src/wl_window.c

@@ -1913,8 +1913,11 @@ void _glfwSetWindowTaskbarProgressWayland(_GLFWwindow* window, const int progres
 
 void _glfwSetWindowTaskbarBadgeWayland(_GLFWwindow* window, int count)
 {
-    _glfwInputError(GLFW_FEATURE_UNIMPLEMENTED,
+    (void)window;
-                    "Wayland: Setting the taskbar progress badge is not implemented");
+
+    const dbus_bool_t badgeVisible = (count != GLFW_DONT_CARE);
+
+    _glfwUpdateTaskbarBadgeDBusPOSIX(badgeVisible, count);
 }
 
 void _glfwGetWindowPosWayland(_GLFWwindow* window, int* xpos, int* ypos)

src/x11_window.c

@@ -2163,8 +2163,11 @@ void _glfwSetWindowTaskbarProgressX11(_GLFWwindow* window, int progressState, do
 
 void _glfwSetWindowTaskbarBadgeX11(_GLFWwindow* window, int count)
 {
-    _glfwInputError(GLFW_FEATURE_UNIMPLEMENTED,
+    (void)window;
-                    "X11: Setting the taskbar progress badge is not implemented");
+
+    const dbus_bool_t badgeVisible = (count != GLFW_DONT_CARE);
+
+    _glfwUpdateTaskbarBadgeDBusPOSIX(badgeVisible, count);
 }
 
 void _glfwGetWindowPosX11(_GLFWwindow* window, int* xpos, int* ypos)