Plugins: use _L1 for for creating Latin-1 string literals

As a drive-by, fix qsizetype -> int narrowing conversion warnings for
the touched lines.

Task-number: QTBUG-98434
Change-Id: I7fadd3cf27ad099028d70f05956303e3af62c0f5
Reviewed-by: Marc Mutz <marc.mutz@qt.io>

7 files changed, 31 insertions, 19 deletions

diff --git a/src/plugins/platforms/ios/optional/nsphotolibrarysupport/qiosfileengineassetslibrary.mm b/src/plugins/platforms/ios/optional/nsphotolibrarysupport/qiosfileengineassetslibrary.mm
index 9cb38a3461..e41bba1fb1 100644
--- a/src/plugins/platforms/ios/optional/nsphotolibrarysupport/qiosfileengineassetslibrary.mm
+++ b/src/plugins/platforms/ios/optional/nsphotolibrarysupport/qiosfileengineassetslibrary.mm
@@ -50,6 +50,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 static QThreadStorage<QString> g_iteratorCurrentUrl;
 static QThreadStorage<QPointer<QIOSAssetData> > g_assetDataCache;
 
@@ -249,7 +251,7 @@ public:
                 }
 
                 if (!asset)
-                    engine->setError(QFile::OpenError, QLatin1String("could not open image"));
+                    engine->setError(QFile::OpenError, "could not open image"_L1);
 
                 m_asset = [asset retain];
                 dispatch_semaphore_signal(semaphore);
@@ -377,7 +379,7 @@ bool QIOSFileEngineAssetsLibrary::close()
 QAbstractFileEngine::FileFlags QIOSFileEngineAssetsLibrary::fileFlags(QAbstractFileEngine::FileFlags type) const
 {
     QAbstractFileEngine::FileFlags flags;
-    const bool isDir = (m_assetUrl == QLatin1String("assets-library://"));
+    const bool isDir = (m_assetUrl == "assets-library://"_L1);
     const bool exists = isDir || m_assetUrl == g_iteratorCurrentUrl.localData() || loadAsset();
 
     if (!exists)
@@ -452,11 +454,11 @@ void QIOSFileEngineAssetsLibrary::setFileName(const QString &file)
     // QUrl::fromLocalFile() will remove double slashes. Since the asset url is
     // passed around as a file name in the app (and converted to/from a file url, e.g
     // in QFileDialog), we need to ensure that m_assetUrl ends up being valid.
-    int index = file.indexOf(QLatin1String("/asset"));
+    qsizetype index = file.indexOf("/asset"_L1);
     if (index == -1)
-        m_assetUrl = QLatin1String("assets-library://");
+        m_assetUrl = "assets-library://"_L1;
     else
-        m_assetUrl = QLatin1String("assets-library:/") + file.mid(index);
+        m_assetUrl = "assets-library:/"_L1 + file.mid(index);
 }
 
 #ifndef QT_NO_FILESYSTEMITERATOR
diff --git a/src/plugins/platforms/ios/plugin.mm b/src/plugins/platforms/ios/plugin.mm
index 83760f2f39..195660220e 100644
--- a/src/plugins/platforms/ios/plugin.mm
+++ b/src/plugins/platforms/ios/plugin.mm
@@ -43,6 +43,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 class QIOSIntegrationPlugin : public QPlatformIntegrationPlugin
 {
     Q_OBJECT
@@ -54,8 +56,8 @@ class QIOSIntegrationPlugin : public QPlatformIntegrationPlugin
 QPlatformIntegration * QIOSIntegrationPlugin::create(const QString& system, const QStringList& paramList)
 {
     Q_UNUSED(paramList);
-    if (!system.compare(QLatin1String("ios"), Qt::CaseInsensitive)
-        || !system.compare(QLatin1String("tvos"), Qt::CaseInsensitive)) {
+    if (!system.compare("ios"_L1, Qt::CaseInsensitive)
+        || !system.compare("tvos"_L1, Qt::CaseInsensitive)) {
         return new QIOSIntegration;
     }
 
diff --git a/src/plugins/platforms/ios/qiosapplicationstate.mm b/src/plugins/platforms/ios/qiosapplicationstate.mm
index bf4e9cc900..73b60fbd33 100644
--- a/src/plugins/platforms/ios/qiosapplicationstate.mm
+++ b/src/plugins/platforms/ios/qiosapplicationstate.mm
@@ -50,6 +50,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 static void qRegisterApplicationStateNotifications()
 {
     NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter];
@@ -83,11 +85,11 @@ static void qRegisterApplicationStateNotifications()
     if (qt_apple_isApplicationExtension()) {
         // Extensions are not allowed to access UIApplication, so we assume the state is active
         QIOSApplicationState::handleApplicationStateChanged(UIApplicationStateActive,
-            QLatin1String("Extension loaded, assuming state is active"));
+            "Extension loaded, assuming state is active"_L1);
     } else {
         // Initialize correct startup state, which may not be the Qt default (inactive)
         UIApplicationState startupState = qt_apple_sharedApplication().applicationState;
-        QIOSApplicationState::handleApplicationStateChanged(startupState, QLatin1String("Application loaded"));
+        QIOSApplicationState::handleApplicationStateChanged(startupState, "Application loaded"_L1);
     }
 }
 Q_CONSTRUCTOR_FUNCTION(qRegisterApplicationStateNotifications)
@@ -96,7 +98,7 @@ QIOSApplicationState::QIOSApplicationState()
 {
     if (!qt_apple_isApplicationExtension()) {
         UIApplicationState startupState = qt_apple_sharedApplication().applicationState;
-        QIOSApplicationState::handleApplicationStateChanged(startupState, QLatin1String("Application launched"));
+        QIOSApplicationState::handleApplicationStateChanged(startupState, "Application launched"_L1);
     }
 }
 
diff --git a/src/plugins/platforms/ios/qiosfiledialog.mm b/src/plugins/platforms/ios/qiosfiledialog.mm
index a56bf25c16..d9d7285910 100644
--- a/src/plugins/platforms/ios/qiosfiledialog.mm
+++ b/src/plugins/platforms/ios/qiosfiledialog.mm
@@ -50,6 +50,8 @@
 #include "qiosoptionalplugininterface.h"
 #include "qiosdocumentpickercontroller.h"
 
+using namespace Qt::StringLiterals;
+
 QIOSFileDialog::QIOSFileDialog()
     : m_viewController(nullptr)
 {
@@ -74,7 +76,7 @@ bool QIOSFileDialog::show(Qt::WindowFlags windowFlags, Qt::WindowModality window
     QString directory = options()->initialDirectory().toLocalFile();
 
     if (acceptOpen) {
-        if (directory.startsWith(QLatin1String("assets-library:")))
+        if (directory.startsWith("assets-library:"_L1))
             return showImagePickerDialog(parent);
         else
             return showNativeDocumentPickerDialog(parent);
diff --git a/src/plugins/platforms/ios/qiosintegration.mm b/src/plugins/platforms/ios/qiosintegration.mm
index 54ef5b2567..4aa1e4207f 100644
--- a/src/plugins/platforms/ios/qiosintegration.mm
+++ b/src/plugins/platforms/ios/qiosintegration.mm
@@ -70,6 +70,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 class QCoreTextFontEngine;
 
 QIOSIntegration *QIOSIntegration::instance()
@@ -85,7 +87,7 @@ QIOSIntegration::QIOSIntegration()
     , m_inputContext(0)
     , m_platformServices(new QIOSServices)
     , m_accessibility(0)
-    , m_optionalPlugins(new QFactoryLoader(QIosOptionalPluginInterface_iid, QLatin1String("/platforms/darwin")))
+    , m_optionalPlugins(new QFactoryLoader(QIosOptionalPluginInterface_iid, "/platforms/darwin"_L1))
 {
     if (Q_UNLIKELY(!qt_apple_isApplicationExtension() && !qt_apple_sharedApplication())) {
         qFatal("Error: You are creating QApplication before calling UIApplicationMain.\n" \
diff --git a/src/plugins/platforms/ios/qiosmessagedialog.mm b/src/plugins/platforms/ios/qiosmessagedialog.mm
index 254922701a..334edddcfe 100644
--- a/src/plugins/platforms/ios/qiosmessagedialog.mm
+++ b/src/plugins/platforms/ios/qiosmessagedialog.mm
@@ -49,6 +49,8 @@
 #include "quiview.h"
 #include "qiosmessagedialog.h"
 
+using namespace Qt::StringLiterals;
+
 QIOSMessageDialog::QIOSMessageDialog()
     : m_alertController(nullptr)
 {
@@ -73,7 +75,7 @@ inline QString QIOSMessageDialog::messageTextPlain()
     if (!detailedText.isEmpty())
         text += lineShift + detailedText;
 
-    text.replace(QLatin1String("<p>"), QStringLiteral("\n"), Qt::CaseInsensitive);
+    text.replace("<p>"_L1, QStringLiteral("\n"), Qt::CaseInsensitive);
     text.remove(QRegularExpression(QStringLiteral("<[^>]*>")));
 
     return text;
diff --git a/src/plugins/platforms/ios/qiosscreen.mm b/src/plugins/platforms/ios/qiosscreen.mm
index 69ec393b12..6b1d6621a6 100644
--- a/src/plugins/platforms/ios/qiosscreen.mm
+++ b/src/plugins/platforms/ios/qiosscreen.mm
@@ -229,6 +229,8 @@ static QIOSScreen* qtPlatformScreenFor(UIScreen *uiScreen)
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 /*!
     Returns the model identifier of the device.
 */
@@ -321,12 +323,10 @@ QIOSScreen::~QIOSScreen()
 
 QString QIOSScreen::name() const
 {
-    if (m_uiScreen == [UIScreen mainScreen]) {
-        return QString::fromNSString([UIDevice currentDevice].model)
-            + QLatin1String(" built-in display");
-    } else {
-        return QLatin1String("External display");
-    }
+    if (m_uiScreen == [UIScreen mainScreen])
+        return QString::fromNSString([UIDevice currentDevice].model) + " built-in display"_L1;
+    else
+        return "External display"_L1;
 }
 
 void QIOSScreen::updateProperties()