Emit selectionChanged signals when input method alters selection.

Mark the selection as dirty if an input method event contains a
selection and emit selectionChanged() if it's not emitted by
finishChange().

Task-number: QTBUG-19731

Change-Id: Ief6f06f40071f64dae4db0ba365676c059a39c7e
Reviewed-on: http://codereview.qt.nokia.com/2081
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Andrew den Exter <andrew.den-exter@nokia.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/auto/qlineedit/tst_qlineedit.cpp b/tests/auto/qlineedit/tst_qlineedit.cpp
index 72b402f69d..68e88a87ed 100644
--- a/tests/auto/qlineedit/tst_qlineedit.cpp
+++ b/tests/auto/qlineedit/tst_qlineedit.cpp
@@ -290,6 +290,7 @@ private slots:
     void bidiLogicalMovement();
 
     void selectAndCursorPosition();
+    void inputMethodSelection();
 
 protected slots:
     void editingFinished();
@@ -3883,5 +3884,28 @@ void tst_QLineEdit::selectAndCursorPosition()
     QCOMPARE(testWidget->cursorPosition(), 0);
 }
 
+void tst_QLineEdit::inputMethodSelection()
+{
+    testWidget->setText("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");
+    testWidget->setSelection(0,0);
+    QSignalSpy selectionSpy(testWidget, SIGNAL(selectionChanged()));
+
+    QCOMPARE(selectionSpy.count(), 0);
+    QCOMPARE(testWidget->selectionStart(), -1);
+
+    testWidget->setSelection(0,5);
+
+    QCOMPARE(selectionSpy.count(), 1);
+    QCOMPARE(testWidget->selectionStart(), 0);
+
+    QList<QInputMethodEvent::Attribute> attributes;
+    attributes << QInputMethodEvent::Attribute(QInputMethodEvent::Selection, 12, 5, QVariant());
+    QInputMethodEvent event("", attributes);
+    QApplication::sendEvent(testWidget, &event);
+
+    QCOMPARE(selectionSpy.count(), 2);
+    QCOMPARE(testWidget->selectionStart(), 12);
+}
+
 QTEST_MAIN(tst_QLineEdit)
 #include "tst_qlineedit.moc"