fix: warnings when compiling with Qt 6.10 (#6422)

CHANGELOG.md

@@ -17,6 +17,7 @@
 - Dev: Correct handling of eventsubs without any account. (#6503)
 - Dev: Removed dependency to Qt5 Compatibility module by updating libcommuni. (#6500)
 - Dev: Merged emote element flags from different providers into two. (#6511)
+- Dev: Fixed warnings on Qt 6.10. (#6422)
 - Dev: Removed unused method in `Emojis`. (#6517)
 - Dev: Refactored `Emotes` into `EmoteController`. (#6516)
 - Dev: Added Qt keyword and warning flags project wide. (#6520)

CMakeLists.txt

@@ -137,6 +137,10 @@ find_package(Qt${MAJOR_QT_VERSION} REQUIRED
     Svg
     Concurrent
     )
+if(CHATTERINO_ALLOW_PRIVATE_QT_API)
+    # Only exists since 6.10 and prints a warning regarding private headers
+    find_package(Qt${MAJOR_QT_VERSION} COMPONENTS GuiPrivate)
+endif()
 
 message(STATUS "Qt version: ${Qt${MAJOR_QT_VERSION}_VERSION}")
 

mocks/include/mocks/EmptyApplication.hpp

@@ -17,10 +17,12 @@ public:
     explicit EmptyApplication(const QString &settingsData)
     {
         QFile settingsFile(this->settingsDir.filePath("settings.json"));
-        settingsFile.open(QIODevice::WriteOnly | QIODevice::Text);
-        settingsFile.write(settingsData.toUtf8());
-        settingsFile.flush();
-        settingsFile.close();
+        if (settingsFile.open(QIODevice::WriteOnly | QIODevice::Text))
+        {
+            settingsFile.write(settingsData.toUtf8());
+            settingsFile.flush();
+            settingsFile.close();
+        }
     }
 
     ~EmptyApplication() override = default;

src/RunGui.cpp

@@ -114,7 +114,7 @@ void createRunningFile(const QString &path)
 {
     QFile runningFile(path);
 
-    runningFile.open(QIODevice::WriteOnly | QIODevice::Truncate);
+    std::ignore = runningFile.open(QIODevice::WriteOnly | QIODevice::Truncate);
     runningFile.flush();
     runningFile.close();
 }

src/common/Credentials.cpp

@@ -65,14 +65,21 @@ QString insecurePath()
 QJsonDocument loadInsecure()
 {
     QFile file(insecurePath());
-    file.open(QIODevice::ReadOnly);
+    if (!file.open(QIODevice::ReadOnly))
+    {
+        return {};
+    }
+
     return QJsonDocument::fromJson(file.readAll());
 }
 
 void storeInsecure(const QJsonDocument &doc)
 {
     QSaveFile file(insecurePath());
-    file.open(QIODevice::WriteOnly);
+    if (!file.open(QIODevice::WriteOnly))
+    {
+        return;
+    }
     file.write(doc.toJson());
     file.commit();
 }

src/common/LinkParser.cpp

@@ -1,6 +1,7 @@
 #define QT_NO_CAST_FROM_ASCII  // avoids unexpected implicit casts
 #include "common/LinkParser.hpp"
 
+#include "common/QLogging.hpp"
 #include "util/QCompareTransparent.hpp"
 
 #include <QFile>
@@ -20,7 +21,12 @@ TldSet &tlds()
 {
     static TldSet tlds = [] {
         QFile file(QStringLiteral(":/tlds.txt"));
-        file.open(QFile::ReadOnly);
+        bool ok = file.open(QFile::ReadOnly);
+        if (!ok)
+        {
+            assert(false && "Resources not available");
+            qCWarning(chatterinoApp) << "Resources not available";
+        }
         QTextStream stream(&file);
 
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)

src/common/Modes.cpp

@@ -9,7 +9,10 @@ namespace chatterino {
 Modes::Modes()
 {
     QFile file(combinePath(QCoreApplication::applicationDirPath(), "modes"));
-    file.open(QIODevice::ReadOnly);
+    if (!file.open(QIODevice::ReadOnly))
+    {
+        return;
+    }
 
     while (!file.atEnd())
     {

src/common/WindowDescriptors.cpp

@@ -14,7 +14,10 @@ namespace {
 QJsonArray loadWindowArray(const QString &settingsPath)
 {
     QFile file(settingsPath);
-    file.open(QIODevice::ReadOnly);
+    if (!file.open(QIODevice::ReadOnly))
+    {
+        return {};
+    }
     QByteArray data = file.readAll();
     QJsonDocument document = QJsonDocument::fromJson(data);
     QJsonArray windows_arr = document.object().value("windows").toArray();

src/controllers/plugins/PluginController.cpp

@@ -92,7 +92,12 @@ bool PluginController::tryLoadFromDir(const QDir &pluginDir)
         return false;
     }
     QFile infoFile(infojson.absoluteFilePath());
-    infoFile.open(QIODevice::ReadOnly);
+    if (!infoFile.open(QIODevice::ReadOnly))
+    {
+        qCWarning(chatterinoLua)
+            << "Could not open info.json" << infoFile.errorString();
+        return false;
+    }
     auto everything = infoFile.readAll();
     auto doc = QJsonDocument::fromJson(everything);
     if (!doc.isObject())

src/providers/emoji/Emojis.cpp

@@ -172,7 +172,12 @@ void Emojis::loadEmojis()
 {
     // Current version: https://github.com/iamcal/emoji-data/blob/v15.1.1/emoji.json (Emoji version 15.1 (2023))
     QFile file(":/emoji.json");
-    file.open(QFile::ReadOnly);
+    if (!file.open(QFile::ReadOnly))
+    {
+        assert(false && "Resources not available");
+        qCWarning(chatterinoEmoji) << "Resources not available";
+        return;
+    }
     QTextStream s1(&file);
     QString data = s1.readAll();
     rapidjson::Document root;

src/singletons/ImageUploader.cpp

@@ -140,7 +140,12 @@ void ImageUploader::logToFile(const QString &originalFilePath,
     // local path to an image (can be empty)
     // timestamp
     QSaveFile logSaveFile(logFileName);
-    logSaveFile.open(QIODevice::WriteOnly | QIODevice::Text);
+    if (!logSaveFile.open(QIODevice::WriteOnly | QIODevice::Text))
+    {
+        qCDebug(chatterinoImageuploader)
+            << "Failed to open log file" << logSaveFile.errorString();
+        return;
+    }
     QJsonArray entries = QJsonDocument::fromJson(logs).array();
     entries.push_back(newLogEntry);
     logSaveFile.write(QJsonDocument(entries).toJson());

src/singletons/Updates.cpp

@@ -178,7 +178,13 @@ void Updates::installUpdates()
                     combinePath(this->paths.miscDirectory, "update.zip");
 
                 QFile file(filename);
-                file.open(QIODevice::Truncate | QIODevice::WriteOnly);
+                if (!file.open(QIODevice::Truncate | QIODevice::WriteOnly))
+                {
+                    qCWarning(chatterinoUpdate)
+                        << "Failed to save update.zip" << file.errorString();
+                    this->setStatus_(WriteFileFailed);
+                    return;
+                }
 
                 if (file.write(object) == -1)
                 {
@@ -238,7 +244,9 @@ void Updates::installUpdates()
                     combinePath(this->paths.miscDirectory, "Update.exe");
 
                 QFile file(filePath);
-                file.open(QIODevice::Truncate | QIODevice::WriteOnly);
+                // write() will fail if we couldn't open
+                std::ignore =
+                    file.open(QIODevice::Truncate | QIODevice::WriteOnly);
 
                 if (file.write(object) == -1)
                 {

src/singletons/helper/LoggingChannel.cpp

@@ -128,7 +128,12 @@ void LoggingChannel::openLogFile()
     qCDebug(chatterinoHelper) << "Logging to" << fileName;
     this->fileHandle.setFileName(fileName);
 
-    this->fileHandle.open(QIODevice::Append);
+    if (!this->fileHandle.open(QIODevice::Append))
+    {
+        qCDebug(chatterinoHelper)
+            << "Failed to open file" << this->fileHandle.errorString();
+        return;
+    }
 
     appendLine(this->fileHandle, generateOpeningString(now));
 }
@@ -159,7 +164,13 @@ void LoggingChannel::openStreamLogFile(const QString &streamID)
     qCDebug(chatterinoHelper) << "Logging stream to" << fileName;
     this->currentStreamFileHandle.setFileName(fileName);
 
-    this->currentStreamFileHandle.open(QIODevice::Append);
+    if (!this->currentStreamFileHandle.open(QIODevice::Append))
+    {
+        qCDebug(chatterinoHelper)
+            << "Failed to open file"
+            << this->currentStreamFileHandle.errorString();
+        return;
+    }
     appendLine(this->currentStreamFileHandle, generateOpeningString(now));
 }
 

src/widgets/dialogs/SettingsDialog.cpp

@@ -2,6 +2,7 @@
 
 #include "Application.hpp"
 #include "common/Args.hpp"
+#include "common/QLogging.hpp"
 #include "controllers/commands/CommandController.hpp"
 #include "controllers/hotkeys/HotkeyController.hpp"
 #include "singletons/Settings.hpp"
@@ -47,7 +48,11 @@ SettingsDialog::SettingsDialog(QWidget *parent)
     this->resize(915, 600);
     this->themeChangedEvent();
     QFile styleFile(":/qss/settings.qss");
-    styleFile.open(QFile::ReadOnly);
+    if (!styleFile.open(QFile::ReadOnly))
+    {
+        assert(false && "Resources not loaded");
+        qCWarning(chatterinoWidget) << "Resources not loaded";
+    }
     QString stylesheet = QString::fromUtf8(styleFile.readAll());
     this->setStyleSheet(stylesheet);
 

src/widgets/settingspages/AboutPage.cpp

@@ -158,7 +158,11 @@ AboutPage::AboutPage()
             auto l = contributors.emplace<FlowLayout>();
 
             QFile contributorsFile(":/contributors.txt");
-            contributorsFile.open(QFile::ReadOnly);
+            if (!contributorsFile.open(QFile::ReadOnly))
+            {
+                assert(false && "Resources not loaded");
+                qCWarning(chatterinoWidget) << "Resources not loaded";
+            }
 
             QTextStream stream(&contributorsFile);
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
@@ -265,7 +269,12 @@ void AboutPage::addLicense(QFormLayout *form, const QString &name,
             auto *edit = new QTextEdit;
 
             QFile file(licenseLink);
-            file.open(QIODevice::ReadOnly);
+            if (!file.open(QIODevice::ReadOnly))
+            {
+                assert(false && "License not found");
+                qCWarning(chatterinoWidget)
+                    << "License not found" << licenseLink;
+            }
             edit->setText(file.readAll());
             edit->setReadOnly(true);
 

src/widgets/settingspages/CommandPage.cpp

@@ -12,6 +12,7 @@
 #include <QColor>
 #include <QHeaderView>
 #include <QLabel>
+#include <QMessageBox>
 #include <QPushButton>
 #include <QStandardItemModel>
 #include <QTableView>
@@ -105,9 +106,15 @@ CommandPage::CommandPage()
         auto *button = new QPushButton("Import commands from Chatterino 1");
         this->view->addCustomButton(button);
 
-        QObject::connect(button, &QPushButton::clicked, this, [] {
+        QObject::connect(button, &QPushButton::clicked, this, [this] {
             QFile c1settings(c1settingsPath());
-            c1settings.open(QIODevice::ReadOnly);
+            if (!c1settings.open(QIODevice::ReadOnly))
+            {
+                QMessageBox::warning(
+                    this, "Chatterino 1 Importer",
+                    "Failed to read settings: " + c1settings.errorString());
+                return;
+            }
             for (const auto &line :
                  QString(c1settings.readAll())
                      .split(QRegularExpression("[\r\n]"), Qt::SkipEmptyParts))

tests/src/Plugins.cpp

@@ -479,7 +479,7 @@ TEST_F(PluginTest, ioNoPerms)
     configure();
     auto file = rawpl->dataDirectory().filePath("testfile");
     QFile f(file);
-    f.open(QFile::WriteOnly);
+    EXPECT_TRUE(f.open(QFile::WriteOnly));
     f.write(TEST_FILE_DATA);
     f.close();
 
@@ -531,7 +531,7 @@ TEST_F(PluginTest, requireNoData)
 
     auto file = rawpl->dataDirectory().filePath("thisiscode.lua");
     QFile f(file);
-    f.open(QFile::WriteOnly);
+    EXPECT_TRUE(f.open(QFile::WriteOnly));
     f.write(R"lua(print("Data was executed"))lua");
     f.close();