Update TextEdit's visible selection when only the anchor changes.

At the limits of a TextEdit's text a key press can change/reset the anchor
position without changing the cursor position.  Checking the cursor position
alone isn't enough to determine the selection hasn't changed.

Change-Id: Ic425ac0c06897d77e9c86b907ff10b39d78dd7a1
Task-number: QTBUG-17982
Reviewed-by: Martin Jones

2 files changed, 55 insertions, 4 deletions

diff --git a/tests/auto/declarative/qdeclarativetextedit/data/navigation.qml b/tests/auto/declarative/qdeclarativetextedit/data/navigation.qml
index 9ee8a93..0e1caf6 100644
--- a/tests/auto/declarative/qdeclarativetextedit/data/navigation.qml
+++ b/tests/auto/declarative/qdeclarativetextedit/data/navigation.qml
@@ -15,6 +15,7 @@ Rectangle {
         KeyNavigation.right: lastItem
         KeyNavigation.up: firstItem
         KeyNavigation.down: lastItem
+        text: "a"
     }
     Item {
         id: lastItem 
diff --git a/tests/auto/declarative/qdeclarativetextedit/tst_qdeclarativetextedit.cpp b/tests/auto/declarative/qdeclarativetextedit/tst_qdeclarativetextedit.cpp
index e26077c..f642947 100644
--- a/tests/auto/declarative/qdeclarativetextedit/tst_qdeclarativetextedit.cpp
+++ b/tests/auto/declarative/qdeclarativetextedit/tst_qdeclarativetextedit.cpp
@@ -110,6 +110,7 @@ private slots:
     void persistentSelection();
     void focusOnPress();
     void selection();
+    void keySelection();
     void moveCursorSelection_data();
     void moveCursorSelection();
     void moveCursorSelectionSequence_data();
@@ -147,7 +148,7 @@ private slots:
     void inputMethodComposing();
 
 private:
-    void simulateKey(QDeclarativeView *, int key);
+    void simulateKey(QDeclarativeView *, int key, Qt::KeyboardModifiers modifiers = 0);
     QDeclarativeView *createView(const QString &filename);
 
     QStringList standard;
@@ -762,6 +763,53 @@ void tst_qdeclarativetextedit::selection()
     QVERIFY(textEditObject->selectedText().isNull());
 }
 
+void tst_qdeclarativetextedit::keySelection()
+{
+    QDeclarativeView *canvas = createView(SRCDIR "/data/navigation.qml");
+    canvas->show();
+    canvas->setFocus();
+
+    QVERIFY(canvas->rootObject() != 0);
+
+    QDeclarativeTextEdit *input = qobject_cast<QDeclarativeTextEdit *>(qvariant_cast<QObject *>(canvas->rootObject()->property("myInput")));
+
+    QVERIFY(input != 0);
+    QTRY_VERIFY(input->hasActiveFocus() == true);
+
+    QSignalSpy spy(input, SIGNAL(selectionChanged()));
+
+    simulateKey(canvas, Qt::Key_Right, Qt::ShiftModifier);
+    QVERIFY(input->hasActiveFocus() == true);
+    QCOMPARE(input->selectedText(), QString("a"));
+    QCOMPARE(spy.count(), 1);
+    simulateKey(canvas, Qt::Key_Right);
+    QVERIFY(input->hasActiveFocus() == true);
+    QCOMPARE(input->selectedText(), QString());
+    QCOMPARE(spy.count(), 2);
+    simulateKey(canvas, Qt::Key_Right);
+    QVERIFY(input->hasActiveFocus() == false);
+    QCOMPARE(input->selectedText(), QString());
+    QCOMPARE(spy.count(), 2);
+
+    simulateKey(canvas, Qt::Key_Left);
+    QVERIFY(input->hasActiveFocus() == true);
+    QCOMPARE(spy.count(), 2);
+    simulateKey(canvas, Qt::Key_Left, Qt::ShiftModifier);
+    QVERIFY(input->hasActiveFocus() == true);
+    QCOMPARE(input->selectedText(), QString("a"));
+    QCOMPARE(spy.count(), 3);
+    simulateKey(canvas, Qt::Key_Left);
+    QVERIFY(input->hasActiveFocus() == true);
+    QCOMPARE(input->selectedText(), QString());
+    QCOMPARE(spy.count(), 4);
+    simulateKey(canvas, Qt::Key_Left);
+    QVERIFY(input->hasActiveFocus() == false);
+    QCOMPARE(input->selectedText(), QString());
+    QCOMPARE(spy.count(), 4);
+
+    delete canvas;
+}
+
 void tst_qdeclarativetextedit::moveCursorSelection_data()
 {
     QTest::addColumn<QString>("testStr");
@@ -1480,6 +1528,8 @@ void tst_qdeclarativetextedit::navigation()
     simulateKey(canvas, Qt::Key_Right);
     QVERIFY(input->hasActiveFocus() == true);
     simulateKey(canvas, Qt::Key_Right);
+    QVERIFY(input->hasActiveFocus() == true);
+    simulateKey(canvas, Qt::Key_Right);
     QVERIFY(input->hasActiveFocus() == false);
     simulateKey(canvas, Qt::Key_Left);
     QVERIFY(input->hasActiveFocus() == true);
@@ -1607,10 +1657,10 @@ void tst_qdeclarativetextedit::readOnly()
     delete canvas;
 }
 
-void tst_qdeclarativetextedit::simulateKey(QDeclarativeView *view, int key)
+void tst_qdeclarativetextedit::simulateKey(QDeclarativeView *view, int key, Qt::KeyboardModifiers modifiers)
 {
-    QKeyEvent press(QKeyEvent::KeyPress, key, 0);
-    QKeyEvent release(QKeyEvent::KeyRelease, key, 0);
+    QKeyEvent press(QKeyEvent::KeyPress, key, modifiers);
+    QKeyEvent release(QKeyEvent::KeyRelease, key, modifiers);
 
     QApplication::sendEvent(view, &press);
     QApplication::sendEvent(view, &release);