1 files changed, 279 insertions, 0 deletions

diff --git a/swaybar/tray/tray.c b/swaybar/tray/tray.c
new file mode 100644
index 00000000..9a709fe4
--- /dev/null
+++ b/swaybar/tray/tray.c
@@ -0,0 +1,279 @@
+#define _XOPEN_SOURCE 500
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dbus/dbus.h>
+#include "swaybar/bar.h"
+#include "swaybar/tray/tray.h"
+#include "swaybar/tray/dbus.h"
+#include "swaybar/tray/sni.h"
+#include "swaybar/bar.h"
+#include "list.h"
+#include "log.h"
+
+struct tray *tray;
+
+static void register_host(char *name) {
+        DBusMessage *message;
+
+        message = dbus_message_new_method_call(
+                        "org.freedesktop.StatusNotifierWatcher",
+                        "/StatusNotifierWatcher",
+                        "org.freedesktop.StatusNotifierWatcher",
+                        "RegisterStatusNotifierHost");
+        if (!message) {
+                sway_log(L_ERROR, "Cannot allocate dbus method call");
+                return;
+        }
+
+        dbus_message_append_args(message,
+                        DBUS_TYPE_STRING, &name,
+                        DBUS_TYPE_INVALID);
+
+        dbus_connection_send(conn, message, NULL);
+
+        dbus_message_unref(message);
+}
+
+static void get_items_reply(DBusPendingCall *pending, void *_data) {
+        DBusMessage *reply = dbus_pending_call_steal_reply(pending);
+
+        if (!reply) {
+                sway_log(L_ERROR, "Got no items reply from sni watcher");
+                goto bail;
+        }
+
+        int message_type = dbus_message_get_type(reply);
+
+        if (message_type == DBUS_MESSAGE_TYPE_ERROR) {
+                char *msg;
+
+                dbus_message_get_args(reply, NULL,
+                                DBUS_TYPE_STRING, &msg,
+                                DBUS_TYPE_INVALID);
+
+                sway_log(L_ERROR, "Message is error: %s", msg);
+                goto bail;
+        }
+
+        DBusMessageIter iter;
+        DBusMessageIter variant;
+        DBusMessageIter array;
+
+        dbus_message_iter_init(reply, &iter);
+        if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) {
+                sway_log(L_ERROR, "Replyed with wrong type, not v(as)");
+                goto bail;
+        }
+        dbus_message_iter_recurse(&iter, &variant);
+        if (dbus_message_iter_get_arg_type(&variant) != DBUS_TYPE_ARRAY ||
+                        dbus_message_iter_get_element_type(&variant) != DBUS_TYPE_STRING) {
+                sway_log(L_ERROR, "Replyed with wrong type, not v(as)");
+                goto bail;
+        }
+
+        // Clear list
+        list_foreach(tray->items, (void (*)(void *))sni_free);
+        list_free(tray->items);
+        tray->items = create_list();
+
+        // O(n) function, could be faster dynamically reading values
+        int len = dbus_message_iter_get_element_count(&variant);
+
+        dbus_message_iter_recurse(&variant, &array);
+        for (int i = 0; i < len; i++) {
+                const char *name;
+                dbus_message_iter_get_basic(&array, &name);
+
+                struct StatusNotifierItem *item = sni_create(name);
+
+                sway_log(L_DEBUG, "Item registered with host: %s", name);
+                list_add(tray->items, item);
+                dirty = true;
+        }
+
+bail:
+        dbus_message_unref(reply);
+        return;
+}
+static void get_items() {
+        DBusPendingCall *pending;
+        DBusMessage *message = dbus_message_new_method_call(
+                        "org.freedesktop.StatusNotifierWatcher",
+                        "/StatusNotifierWatcher",
+                        "org.freedesktop.DBus.Properties",
+                        "Get");
+
+        const char *iface = "org.freedesktop.StatusNotifierWatcher";
+        const char *prop = "RegisteredStatusNotifierItems";
+        dbus_message_append_args(message,
+                        DBUS_TYPE_STRING, &iface,
+                        DBUS_TYPE_STRING, &prop,
+                        DBUS_TYPE_INVALID);
+
+        bool status =
+                dbus_connection_send_with_reply(conn, message, &pending, -1);
+        dbus_message_unref(message);
+
+        if (!(pending || status)) {
+                sway_log(L_ERROR, "Could not get items");
+                return;
+        }
+
+        dbus_pending_call_set_notify(pending, get_items_reply, NULL, NULL);
+}
+
+static DBusHandlerResult signal_handler(DBusConnection *connection,
+                DBusMessage *message, void *_data) {
+        if (dbus_message_is_signal(message, "org.freedesktop.StatusNotifierWatcher",
+                                "StatusNotifierItemRegistered")) {
+                const char *name;
+                if (!dbus_message_get_args(message, NULL,
+                                DBUS_TYPE_STRING, &name,
+                                DBUS_TYPE_INVALID)) {
+                        sway_log(L_ERROR, "Error getting StatusNotifierItemRegistered args");
+                        return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+                }
+
+                if (list_seq_find(tray->items, sni_str_cmp, name) == -1) {
+                        struct StatusNotifierItem *item = sni_create(name);
+
+                        list_add(tray->items, item);
+                        dirty = true;
+                }
+
+                return DBUS_HANDLER_RESULT_HANDLED;
+        } else if (dbus_message_is_signal(message, "org.freedesktop.StatusNotifierWatcher",
+                                "StatusNotifierItemUnregistered")) {
+                const char *name;
+                if (!dbus_message_get_args(message, NULL,
+                                DBUS_TYPE_STRING, &name,
+                                DBUS_TYPE_INVALID)) {
+                        sway_log(L_ERROR, "Error getting StatusNotifierItemUnregistered args");
+                        return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+                }
+
+                int index;
+                if ((index = list_seq_find(tray->items, sni_str_cmp, name)) != -1) {
+                        sni_free(tray->items->items[index]);
+                        list_del(tray->items, index);
+                        dirty = true;
+                } else {
+                        // If it's not in our list, then our list is incorrect.
+                        // Fetch all items again
+                        sway_log(L_INFO, "Host item list incorrect, refreshing");
+                        get_items();
+                }
+
+                return DBUS_HANDLER_RESULT_HANDLED;
+        } else if (dbus_message_is_signal(message, "org.freedesktop.StatusNotifierItem",
+                                "NewIcon") || dbus_message_is_signal(message,
+                                "org.kde.StatusNotifierItem", "NewIcon")) {
+                const char *name;
+                int index;
+                struct StatusNotifierItem *item;
+
+                name = dbus_message_get_sender(message);
+                if ((index = list_seq_find(tray->items, sni_uniq_cmp, name)) != -1) {
+                        item = tray->items->items[index];
+                        get_icon(item);
+                }
+
+                return DBUS_HANDLER_RESULT_HANDLED;
+        }
+        return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+}
+
+int init_tray() {
+        tray = (struct tray *)malloc(sizeof(tray));
+
+        tray->items = create_list();
+
+        DBusError error;
+        dbus_error_init(&error);
+        char *name = NULL;
+        if (!conn) {
+                sway_log(L_ERROR, "Connection is null, cannot init SNI host");
+                goto err;
+        }
+        name = calloc(sizeof(char), 256);
+
+        if (!name) {
+                sway_log(L_ERROR, "Cannot allocate name");
+                goto err;
+        }
+
+        pid_t pid = getpid();
+        if (snprintf(name, 256, "org.freedesktop.StatusNotifierHost-%d", pid)
+                        >= 256) {
+                sway_log(L_ERROR, "Cannot get host name because string is too short."
+                                "This should not happen");
+                goto err;
+        }
+
+        // We want to be the sole owner of this name
+        if (dbus_bus_request_name(conn, name, DBUS_NAME_FLAG_DO_NOT_QUEUE,
+                        &error) != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
+                sway_log(L_ERROR, "Cannot get host name and start the tray");
+                goto err;
+        }
+        if (dbus_error_is_set(&error)) {
+                sway_log(L_ERROR, "Dbus err getting host name: %s\n", error.message);
+                goto err;
+        }
+        sway_log(L_DEBUG, "Got host name");
+
+        register_host(name);
+
+        get_items();
+
+        // Perhaps use addmatch helper functions like wlc does?
+        dbus_bus_add_match(conn,
+                        "type='signal',\
+                        sender='org.freedesktop.StatusNotifierWatcher',\
+                        member='StatusNotifierItemRegistered'",
+                        &error);
+        if (dbus_error_is_set(&error)) {
+                sway_log(L_ERROR, "dbus_err: %s", error.message);
+                goto err;
+        }
+        dbus_bus_add_match(conn,
+                        "type='signal',\
+                        sender='org.freedesktop.StatusNotifierWatcher',\
+                        member='StatusNotifierItemUnregistered'",
+                        &error);
+        if (dbus_error_is_set(&error)) {
+                sway_log(L_ERROR, "dbus_err: %s", error.message);
+                return -1;
+        }
+
+        // SNI matches
+        dbus_bus_add_match(conn,
+                        "type='signal',\
+                        interface='org.freedesktop.StatusNotifierItem',\
+                        member='NewIcon'",
+                        &error);
+        if (dbus_error_is_set(&error)) {
+                sway_log(L_ERROR, "dbus_err %s", error.message);
+                goto err;
+        }
+        dbus_bus_add_match(conn,
+                        "type='signal',\
+                        interface='org.kde.StatusNotifierItem',\
+                        member='NewIcon'",
+                        &error);
+        if (dbus_error_is_set(&error)) {
+                sway_log(L_ERROR, "dbus_err %s", error.message);
+                goto err;
+        }
+
+        dbus_connection_add_filter(conn, signal_handler, NULL, NULL);
+
+        free(name);
+        return 0;
+
+err:
+        // TODO better handle errors
+        free(name);
+        return -1;
+}