Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-s60-public into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/qt-s60-public:
  Symbian: Fix backspace on empty lines of multiline textedits

1 files changed, 18 insertions, 1 deletions

diff --git a/src/gui/inputmethod/qcoefepinputcontext_s60.cpp b/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
index 2202d3a..e22e27c 100644
--- a/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
+++ b/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
@@ -1089,7 +1089,18 @@ TInt QCoeFepInputContext::DocumentLengthForFep() const
         return 0;
 
     QVariant variant = w->inputMethodQuery(Qt::ImSurroundingText);
-    return variant.value<QString>().size() + m_preeditString.size();
+
+    int size = variant.value<QString>().size() + m_preeditString.size();
+
+    // To fix an issue with backspaces not being generated if document size is zero,
+    // fake document length to be at least one always, except when dealing with
+    // hidden text widgets, where this faking would generate extra asterisk. Since the
+    // primary use of hidden text widgets is password fields, they are unlikely to
+    // support multiple lines anyway.
+    if (size == 0 && !(m_textCapabilities & TCoeInputCapabilities::ESecretText))
+        size = 1;
+
+    return size;
 }
 
 TInt QCoeFepInputContext::DocumentMaximumLengthForFep() const
@@ -1172,6 +1183,12 @@ void QCoeFepInputContext::GetEditorContentForFep(TDes& aEditorContent, TInt aDoc
     // FEP expects the preedit string to be part of the editor content, so let's mix it in.
     int cursor = w->inputMethodQuery(Qt::ImCursorPosition).toInt();
     text.insert(cursor, m_preeditString);
+
+    // Add additional space to empty non-password text to compensate
+    // for the fake length we specified in DocumentLengthForFep().
+    if (text.size() == 0 && !(m_textCapabilities & TCoeInputCapabilities::ESecretText))
+        text += QChar(0x20);
+
     aEditorContent.Copy(qt_QString2TPtrC(text.mid(aDocumentPosition, aLengthToRetrieve)));
 }