tray: Fix tray not updating after (un)map_notify

The issue was that the event was for the wrapper window and that the
tray_client's move constructors didn't correctly copy over all data and
so when the m_clients vector grew, it corrupted the state of all
existing clients.

include/x11/tray_manager.hpp

@@ -64,7 +64,8 @@ class tray_manager : public xpp::event::sink<evt::expose, evt::visibility_notify
                      public signal_receiver<SIGN_PRIORITY_TRAY, signals::ui::update_background,
                          signals::ui_tray::tray_pos_change, signals::ui_tray::tray_visibility> {
  public:
-  explicit tray_manager(connection& conn, signal_emitter& emitter, const logger& logger, const bar_settings& bar_opts, on_update on_update);
+  explicit tray_manager(connection& conn, signal_emitter& emitter, const logger& logger, const bar_settings& bar_opts,
+      on_update on_update);
 
   ~tray_manager();
 
@@ -108,7 +109,7 @@ class tray_manager : public xpp::event::sink<evt::expose, evt::visibility_notify
 
   void update_width();
 
-  bool is_embedded(const xcb_window_t& win) const;
+  bool is_embedded(const xcb_window_t& win);
   tray_client* find_client(const xcb_window_t& win);
   void remove_client(const tray_client& client, bool reconfigure = true);
   void remove_client(xcb_window_t win, bool reconfigure = true);

src/x11/tray_client.cpp

@@ -68,9 +68,14 @@ tray_client::~tray_client() {
   }
 }
 
-tray_client::tray_client(tray_client&& c) : m_log(c.m_log), m_connection(c.m_connection), m_size(c.m_size) {
+tray_client::tray_client(tray_client&& c) : m_log(c.m_log), m_connection(c.m_connection) {
   std::swap(m_wrapper, c.m_wrapper);
   std::swap(m_client, c.m_client);
+  std::swap(m_xembed_supported, c.m_xembed_supported);
+  std::swap(m_xembed, c.m_xembed);
+  std::swap(m_mapped, c.m_mapped);
+  std::swap(m_hidden, c.m_hidden);
+  std::swap(m_size, c.m_size);
 }
 
 tray_client& tray_client::operator=(tray_client&& c) {
@@ -78,6 +83,10 @@ tray_client& tray_client::operator=(tray_client&& c) {
   m_connection = c.m_connection;
   std::swap(m_wrapper, c.m_wrapper);
   std::swap(m_client, c.m_client);
+  std::swap(m_xembed_supported, c.m_xembed_supported);
+  std::swap(m_xembed, c.m_xembed);
+  std::swap(m_mapped, c.m_mapped);
+  std::swap(m_hidden, c.m_hidden);
   std::swap(m_size, c.m_size);
   return *this;
 }
@@ -196,7 +205,7 @@ void tray_client::ensure_state() const {
   }
 
   m_log.trace("tray(%s): ensure_state (hidden=%i, mapped=%i, should_be_mapped=%i)", m_connection.id(client()), m_hidden,
-      mapped(), should_be_mapped);
+      m_mapped, should_be_mapped);
 
   if (should_be_mapped) {
     m_log.trace("tray(%s): Map client", m_connection.id(client()));

src/x11/tray_manager.cpp

@@ -449,23 +449,26 @@ int tray_manager::calculate_client_y() {
 }
 
 /**
- * Check if the given window is embedded
+ * Check if the given window is embedded.
+ *
+ * The given window ID can be the ID of the wrapper or the embedded window
  */
-bool tray_manager::is_embedded(const xcb_window_t& win) const {
-  return m_clients.end() !=
-         std::find_if(m_clients.begin(), m_clients.end(), [win](const auto& client) { return client.match(win); });
+bool tray_manager::is_embedded(const xcb_window_t& win) {
+  return find_client(win) != nullptr;
 }
 
 /**
- * Find tray client by window
+ * Find tray client object from the wrapper or embedded window
  */
 tray_client* tray_manager::find_client(const xcb_window_t& win) {
-  for (auto& client : m_clients) {
-    if (client.match(win)) {
-      return &client;
-    }
+  auto client = std::find_if(m_clients.begin(), m_clients.end(),
+      [win](const auto& client) { return client.match(win) || client.embedder() == win; });
+
+  if (client == m_clients.end()) {
+    return nullptr;
+  } else {
+    return &(*client);
   }
-  return nullptr;
 }
 
 /**
@@ -667,7 +670,7 @@ void tray_manager::handle(const evt::reparent_notify& evt) {
   }
 
   if (evt->parent != client->embedder()) {
-    m_log.trace("tray: Received reparent_notify for client, remove...");
+    m_log.info("tray: Received reparent_notify for client, remove...");
     remove_client(*client);
   }
 }
@@ -680,7 +683,7 @@ void tray_manager::handle(const evt::destroy_notify& evt) {
     m_log.info("Systray selection unmanaged... re-activating");
     activate();
   } else if (m_activated && is_embedded(evt->window)) {
-    m_log.trace("tray: Received destroy_notify for client, remove...");
+    m_log.info("tray: Received destroy_notify for client, remove...");
     remove_client(evt->window);
     redraw_window();
   }
@@ -694,7 +697,7 @@ void tray_manager::handle(const evt::map_notify& evt) {
     m_log.trace("tray: Received map_notify");
     m_log.trace("tray: Update container mapped flag");
     redraw_window();
-  } else if (is_embedded(evt->window)) { // TODO FIXME evt->window points to the wrapper window
+  } else if (is_embedded(evt->window)) {
     m_log.trace("tray: Received map_notify");
     m_log.trace("tray: Set client mapped");
     auto client = find_client(evt->window);
@@ -710,7 +713,7 @@ void tray_manager::handle(const evt::map_notify& evt) {
  * Event callback : XCB_UNMAP_NOTIFY
  */
 void tray_manager::handle(const evt::unmap_notify& evt) {
-  if (m_activated && is_embedded(evt->window)) { // TODO FIXME evt->window points to the wrapper window
+  if (m_activated && is_embedded(evt->window)) {
     m_log.trace("tray: Received unmap_notify");
     m_log.trace("tray: Set client unmapped");
     auto client = find_client(evt->window);