refactor: move notifications from brightray to atom (#15209)

atom/browser/notifications/linux/libnotify_loader.cc

@@ -0,0 +1,130 @@
+// Copyright (c) 2015 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "atom/browser/notifications/linux/libnotify_loader.h"
+
+#include <dlfcn.h>
+
+LibNotifyLoader::LibNotifyLoader() : loaded_(false) {}
+
+LibNotifyLoader::~LibNotifyLoader() {
+  CleanUp(loaded_);
+}
+
+bool LibNotifyLoader::Load(const std::string& library_name) {
+  if (loaded_)
+    return false;
+
+  library_ = dlopen(library_name.c_str(), RTLD_LAZY);
+  if (!library_)
+    return false;
+
+  notify_is_initted = reinterpret_cast<decltype(this->notify_is_initted)>(
+      dlsym(library_, "notify_is_initted"));
+  if (!notify_is_initted) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_init = reinterpret_cast<decltype(this->notify_init)>(
+      dlsym(library_, "notify_init"));
+  if (!notify_init) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_get_server_info =
+      reinterpret_cast<decltype(this->notify_get_server_info)>(
+          dlsym(library_, "notify_get_server_info"));
+  if (!notify_get_server_info) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_get_server_caps =
+      reinterpret_cast<decltype(this->notify_get_server_caps)>(
+          dlsym(library_, "notify_get_server_caps"));
+  if (!notify_get_server_caps) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_notification_new =
+      reinterpret_cast<decltype(this->notify_notification_new)>(
+          dlsym(library_, "notify_notification_new"));
+  if (!notify_notification_new) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_notification_add_action =
+      reinterpret_cast<decltype(this->notify_notification_add_action)>(
+          dlsym(library_, "notify_notification_add_action"));
+  if (!notify_notification_add_action) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_notification_set_image_from_pixbuf = reinterpret_cast<decltype(
+      this->notify_notification_set_image_from_pixbuf)>(
+      dlsym(library_, "notify_notification_set_image_from_pixbuf"));
+  if (!notify_notification_set_image_from_pixbuf) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_notification_set_timeout =
+      reinterpret_cast<decltype(this->notify_notification_set_timeout)>(
+          dlsym(library_, "notify_notification_set_timeout"));
+  if (!notify_notification_set_timeout) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_notification_set_hint_string =
+      reinterpret_cast<decltype(this->notify_notification_set_hint_string)>(
+          dlsym(library_, "notify_notification_set_hint_string"));
+  if (!notify_notification_set_hint_string) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_notification_show =
+      reinterpret_cast<decltype(this->notify_notification_show)>(
+          dlsym(library_, "notify_notification_show"));
+  if (!notify_notification_show) {
+    CleanUp(true);
+    return false;
+  }
+
+  notify_notification_close =
+      reinterpret_cast<decltype(this->notify_notification_close)>(
+          dlsym(library_, "notify_notification_close"));
+  if (!notify_notification_close) {
+    CleanUp(true);
+    return false;
+  }
+
+  loaded_ = true;
+  return true;
+}
+
+void LibNotifyLoader::CleanUp(bool unload) {
+  if (unload) {
+    dlclose(library_);
+    library_ = NULL;
+  }
+  loaded_ = false;
+  notify_is_initted = NULL;
+  notify_init = NULL;
+  notify_get_server_info = NULL;
+  notify_get_server_caps = NULL;
+  notify_notification_new = NULL;
+  notify_notification_add_action = NULL;
+  notify_notification_set_image_from_pixbuf = NULL;
+  notify_notification_set_timeout = NULL;
+  notify_notification_set_hint_string = NULL;
+  notify_notification_show = NULL;
+  notify_notification_close = NULL;
+}