added basic version fetching

chatterino.pro

@@ -179,7 +179,8 @@ SOURCES += \
     src/util/rapidjson-helpers.cpp \
     src/singletons/helper/pubsubhelpers.cpp \
     src/singletons/helper/pubsubactions.cpp \
-    src/widgets/selectchanneldialog.cpp
+    src/widgets/selectchanneldialog.cpp \
+    src/singletons/updatemanager.cpp
 
 HEADERS  += \
     src/precompiled_header.hpp \
@@ -301,7 +302,8 @@ HEADERS  += \
     src/util/rapidjson-helpers.hpp \
     src/singletons/helper/pubsubhelpers.hpp \
     src/singletons/helper/pubsubactions.hpp \
-    src/widgets/selectchanneldialog.hpp
+    src/widgets/selectchanneldialog.hpp \
+    src/singletons/updatemanager.hpp
 
 RESOURCES += \
     resources/resources.qrc

src/singletons/updatemanager.cpp

@@ -0,0 +1,54 @@
+#include "updatemanager.hpp"
+
+#include "util/networkrequest.hpp"
+#include "version.hpp"
+
+namespace chatterino {
+namespace singletons {
+
+UpdateManager::UpdateManager()
+    : currentVersion(CHATTERINO_VERSION)
+{
+}
+
+UpdateManager &UpdateManager::getInstance()
+{
+    static UpdateManager instance;
+    return instance;
+}
+
+const QString &UpdateManager::getCurrentVersion() const
+{
+    return this->getCurrentVersion();
+}
+
+const QString &UpdateManager::getOnlineVersion() const
+{
+    return this->getOnlineVersion();
+}
+
+void UpdateManager::checkForUpdates()
+{
+    QString url = "https://notitia.chatterino.com/version/chatterino/" CHATTERINO_OS "/stable";
+
+    util::NetworkRequest req(url);
+    req.setTimeout(20000);
+    req.getJSON([this](QJsonDocument &document) {
+        if (document.isEmpty()) {
+            qDebug() << "error updating";
+            return;
+        }
+
+        QJsonValue version_val = document.object().value("version");
+        if (!version_val.isString()) {
+            qDebug() << "error updating";
+            return;
+        }
+
+        this->onlineVersion = version_val.toString();
+        this->onlineVersionUpdated.invoke();
+    });
+}
+
+}  // namespace singletons
+}  // namespace chatterino

src/singletons/updatemanager.hpp

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <QString>;
+#include <pajlada/signals/signal.hpp>
+
+namespace chatterino {
+namespace singletons {
+
+class UpdateManager
+{
+    UpdateManager();
+
+public:
+    static UpdateManager &getInstance();
+
+    void checkForUpdates();
+    const QString &getCurrentVersion() const;
+    const QString &getOnlineVersion() const;
+
+    pajlada::Signals::Signal onlineVersionUpdated;
+
+private:
+    QString currentVersion;
+    QString onlineVersion;
+};
+
+}  // namespace singletons
+}  // namespace chatterino

src/version.hpp

@@ -1,3 +1,13 @@
 #pragma once
 
+#include <QtGlobal>
+
 #define CHATTERINO_VERSION "2.0.0"
+
+#if defined(Q_OS_WIN)
+#define CHATTERINO_OS "win"
+#elif defined(Q_OS_MACOS)
+#define CHATTERINO_OS "macos"
+#elif defined(Q_OS_LINUX)
+#define CHATTERINO_OS "linux"
+#endif