<fix, feature>(core, ui): version system upgrade.

1. can notice user withdraw version now.
2. fix software not restart when signal caught.
3. improve ui.

1 files changed, 53 insertions, 0 deletions

diff --git a/src/ui/data_struct/SoftwareVersion.h b/src/ui/data_struct/SoftwareVersion.h
new file mode 100644
index 00000000..942f22ce
--- /dev/null
+++ b/src/ui/data_struct/SoftwareVersion.h
@@ -0,0 +1,53 @@
+/**
+ * This file is part of GpgFrontend.
+ *
+ * GpgFrontend is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Foobar is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Foobar.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The initial version of the source code is inherited from gpg4usb-team.
+ * Their source code version also complies with GNU General Public License.
+ *
+ * The source code version of this software was modified and released
+ * by Saturneric<[email protected]> starting on May 12, 2021.
+ *
+ */
+
+#ifndef GPGFRONTEND_SOFTWAREVERSION_H
+#define GPGFRONTEND_SOFTWAREVERSION_H
+
+#include <boost/date_time.hpp>
+
+namespace GpgFrontend::UI {
+struct SoftwareVersion {
+  std::string latest_version;
+  std::string current_version;
+  bool latest_prerelease = false;
+  bool latest_draft = false;
+  bool current_prerelease = false;
+  bool current_draft = false;
+  bool load_info_done = false;
+  std::string publish_date;
+  std::string release_note;
+
+  [[nodiscard]] bool NeedUpgrade() const {
+    return load_info_done && !latest_prerelease && !latest_draft &&
+           current_version < latest_version;
+  }
+
+  [[nodiscard]] bool VersionWithDrawn() const {
+    return load_info_done && current_prerelease && !current_draft;
+  }
+};
+}  // namespace GpgFrontend::UI
+
+#endif  // GPGFRONTEND_SOFTWAREVERSION_H