yuzu/applets/software_keyboard: Specify string conversions explicitly

Allows the software keyboard applet code to compile with implicit string
conversions disabled.

src/yuzu/applets/error.cpp

@@ -29,12 +29,13 @@ void QtErrorDisplay::ShowError(ResultCode error, std::function<void()> finished)
 void QtErrorDisplay::ShowErrorWithTimestamp(ResultCode error, std::chrono::seconds time,
                                             std::function<void()> finished) const {
     this->callback = std::move(finished);
+
+    const QDateTime date_time = QDateTime::fromSecsSinceEpoch(time.count());
     emit MainWindowDisplayError(
         tr("An error occured on %1 at %2.\nPlease try again or contact the "
            "developer of the software.\n\nError Code: %3-%4 (0x%5)")
-            .arg(QDateTime::fromSecsSinceEpoch(time.count())
-                     .toString(QStringLiteral("dddd, MMMM d, yyyy")))
-            .arg(QDateTime::fromSecsSinceEpoch(time.count()).toString(QStringLiteral("h:mm:ss A")))
+            .arg(date_time.toString(QStringLiteral("dddd, MMMM d, yyyy")))
+            .arg(date_time.toString(QStringLiteral("h:mm:ss A")))
             .arg(static_cast<u32>(error.module.Value()) + 2000, 4, 10, QChar::fromLatin1('0'))
             .arg(error.description, 4, 10, QChar::fromLatin1('0'))
             .arg(error.raw, 8, 16, QChar::fromLatin1('0')));

src/yuzu/applets/software_keyboard.cpp

@@ -18,23 +18,30 @@ QtSoftwareKeyboardValidator::QtSoftwareKeyboardValidator(
     : parameters(std::move(parameters)) {}
 
 QValidator::State QtSoftwareKeyboardValidator::validate(QString& input, int& pos) const {
-    if (input.size() > parameters.max_length)
+    if (input.size() > parameters.max_length) {
         return Invalid;
-    if (parameters.disable_space && input.contains(' '))
+    }
+    if (parameters.disable_space && input.contains(QLatin1Char{' '})) {
         return Invalid;
-    if (parameters.disable_address && input.contains('@'))
+    }
+    if (parameters.disable_address && input.contains(QLatin1Char{'@'})) {
         return Invalid;
-    if (parameters.disable_percent && input.contains('%'))
+    }
+    if (parameters.disable_percent && input.contains(QLatin1Char{'%'})) {
         return Invalid;
-    if (parameters.disable_slash && (input.contains('/') || input.contains('\\')))
+    }
+    if (parameters.disable_slash &&
+        (input.contains(QLatin1Char{'/'}) || input.contains(QLatin1Char{'\\'}))) {
         return Invalid;
+    }
     if (parameters.disable_number &&
         std::any_of(input.begin(), input.end(), [](QChar c) { return c.isDigit(); })) {
         return Invalid;
     }
 
-    if (parameters.disable_download_code &&
-        std::any_of(input.begin(), input.end(), [](QChar c) { return c == 'O' || c == 'I'; })) {
+    if (parameters.disable_download_code && std::any_of(input.begin(), input.end(), [](QChar c) {
+            return c == QLatin1Char{'O'} || c == QLatin1Char{'I'};
+        })) {
         return Invalid;
     }