Made qt_accStripAmp handle "&&"

Changed qt_accStripAmp implementation to handle texts which contains
pairs of ampersands representing a single ampersand.

In order to do that, a new static function called qt_accAmpIndex was
created.
This function is based on the code of qt_accHotKey, which was changed
to use qt_accAmpIndex.

Change-Id: Idcc5d07581d7fb3251c30399b189740ca8071104
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@nokia.com>

1 files changed, 28 insertions, 12 deletions

diff --git a/src/gui/accessible/qaccessiblewidget.cpp b/src/gui/accessible/qaccessiblewidget.cpp
index a03bc34..d6cd966 100644
--- a/src/gui/accessible/qaccessiblewidget.cpp
+++ b/src/gui/accessible/qaccessiblewidget.cpp
@@ -100,16 +100,14 @@ static QString buddyString(const QWidget *widget)
     return QString();
 }
 
-QString Q_GUI_EXPORT qt_accStripAmp(const QString &text)
-{
-    return QString(text).remove(QLatin1Char('&'));
-}
-
-QString Q_GUI_EXPORT qt_accHotKey(const QString &text)
+/* This function will return the offset of the '&' in the text that would be
+   preceding the accelerator character.
+   If this text does not have an accelerator, -1 will be returned. */
+static int qt_accAmpIndex(const QString &text)
 {
 #ifndef QT_NO_SHORTCUT
     if (text.isEmpty())
-        return text;
+        return -1;
 
     int fa = 0;
     QChar ac;
@@ -121,20 +119,38 @@ QString Q_GUI_EXPORT qt_accHotKey(const QString &text)
                 ++fa;
                 continue;
             } else {
-                ac = text.at(fa);
+                return fa - 1;
                 break;
             }
         }
     }
-    if (ac.isNull())
-        return QString();
-    return (QString)QKeySequence(Qt::ALT) + ac.toUpper();
+
+    return -1;
 #else
     Q_UNUSED(text);
-    return QString();
+    return -1;
 #endif
 }
 
+QString Q_GUI_EXPORT qt_accStripAmp(const QString &text)
+{
+    QString newText(text);
+    int ampIndex = qt_accAmpIndex(newText);
+    if (ampIndex != -1)
+        newText.remove(ampIndex, 1);
+
+    return newText.replace(QLatin1String("&&"), QLatin1String("&"));
+}
+
+QString Q_GUI_EXPORT qt_accHotKey(const QString &text)
+{
+    int ampIndex = qt_accAmpIndex(text);
+    if (ampIndex != -1)
+        return (QString)QKeySequence(Qt::ALT) + text.at(ampIndex + 1);
+
+    return QString();
+}
+
 class QAccessibleWidgetPrivate : public QAccessible
 {
 public: