Adapt to QGuiApplication::focusObject() for notifying input method

Emitting focusObjectChanged() signal now instead of explicitly setting
inputItem to QInputPanel. Also adapted from deprecated
QInputPanel::inputItem() to QGuiApplication::focusObject().

Change-Id: I97460625cc8bb2820ec7716a06330aecd1b585ea
Reviewed-by: Joona Petrell <joona.t.petrell@nokia.com>

3 files changed, 8 insertions, 21 deletions

diff --git a/src/quick/items/qquickcanvas.cpp b/src/quick/items/qquickcanvas.cpp
index 8f4078d63e..ac7928f286 100644
--- a/src/quick/items/qquickcanvas.cpp
+++ b/src/quick/items/qquickcanvas.cpp
@@ -73,7 +73,7 @@ void QQuickCanvasPrivate::updateFocusItemTransform()
 {
     Q_Q(QQuickCanvas);
     QQuickItem *focus = q->activeFocusItem();
-    if (focus && qApp->inputPanel()->inputItem() == focus)
+    if (focus && qApp->focusObject() == focus)
         qApp->inputPanel()->setInputItemTransform(QQuickItemPrivate::get(focus)->itemToCanvasTransform());
 }
 
@@ -188,6 +188,7 @@ void QQuickCanvas::focusInEvent(QFocusEvent *)
 {
     Q_D(QQuickCanvas);
     d->rootItem->setFocus(true);
+    d->updateFocusItemTransform();
 }
 
 
@@ -379,7 +380,7 @@ void QQuickCanvasPrivate::setFocusInScope(QQuickItem *scope, QQuickItem *item, F
     QVarLengthArray<QQuickItem *, 20> changed;
 
     // Does this change the active focus?
-    if (item == rootItem || scopePrivate->activeFocus && item->isEnabled()) {
+    if (item == rootItem || (scopePrivate->activeFocus && item->isEnabled())) {
         oldActiveFocusItem = activeFocusItem;
         newActiveFocusItem = item;
         while (newActiveFocusItem->isFocusScope()
@@ -455,14 +456,12 @@ void QQuickCanvasPrivate::setFocusInScope(QQuickItem *scope, QQuickItem *item, F
             afi = afi->parentItem();
         }
 
-        updateInputMethodData();
-
         QFocusEvent event(QEvent::FocusIn, Qt::OtherFocusReason);
         q->sendEvent(newActiveFocusItem, &event);
-    } else {
-        updateInputMethodData();
     }
 
+    emit q->focusObjectChanged(activeFocusItem);
+
     if (!changed.isEmpty())
         notifyFocusChangesRecur(changed.data(), changed.count() - 1);
 }
@@ -541,14 +540,12 @@ void QQuickCanvasPrivate::clearFocusInScope(QQuickItem *scope, QQuickItem *item,
         Q_ASSERT(newActiveFocusItem == scope);
         activeFocusItem = scope;
 
-        updateInputMethodData();
-
         QFocusEvent event(QEvent::FocusIn, Qt::OtherFocusReason);
         q->sendEvent(newActiveFocusItem, &event);
-    } else {
-        updateInputMethodData();
     }
 
+    emit q->focusObjectChanged(activeFocusItem);
+
     if (!changed.isEmpty())
         notifyFocusChangesRecur(changed.data(), changed.count() - 1);
 }
@@ -576,14 +573,6 @@ void QQuickCanvasPrivate::notifyFocusChangesRecur(QQuickItem **items, int remain
     }
 }
 
-void QQuickCanvasPrivate::updateInputMethodData()
-{
-    QQuickItem *inputItem = 0;
-    if (activeFocusItem && activeFocusItem->flags() & QQuickItem::ItemAcceptsInputMethod)
-        inputItem = activeFocusItem;
-    qApp->inputPanel()->setInputItem(inputItem);
-}
-
 void QQuickCanvasPrivate::dirtyItem(QQuickItem *)
 {
     Q_Q(QQuickCanvas);
diff --git a/src/quick/items/qquickcanvas_p.h b/src/quick/items/qquickcanvas_p.h
index fe57fd1a47..d5021d880a 100644
--- a/src/quick/items/qquickcanvas_p.h
+++ b/src/quick/items/qquickcanvas_p.h
@@ -143,7 +143,6 @@ public:
     void clearFocusInScope(QQuickItem *scope, QQuickItem *item, FocusOptions = 0);
     void notifyFocusChangesRecur(QQuickItem **item, int remaining);
 
-    void updateInputMethodData();
     void updateFocusItemTransform();
 
     void dirtyItem(QQuickItem *);
diff --git a/src/quick/items/qquickitem.cpp b/src/quick/items/qquickitem.cpp
index 5151310927..cc1705feca 100644
--- a/src/quick/items/qquickitem.cpp
+++ b/src/quick/items/qquickitem.cpp
@@ -3077,8 +3077,7 @@ void QQuickItem::setInputMethodHints(Qt::InputMethodHints hints)
     if (!d->canvas || d->canvas->activeFocusItem() != this)
         return;
 
-    QInputPanel *p = qApp->inputPanel();
-    if (p->inputItem() == this)
+    if (qApp->focusObject() == this)
         qApp->inputPanel()->update(Qt::ImHints);
 }