Make hoverEnabled propagate to children

Hover effects can be sometimes a bit disturbing. This change makes it
possible to conveniently disable hover effects for a tree of controls
in one go. For example, to disable hover effects for a page including
its header, footer, and all list items:

    Page {
        hoverEnabled: false
        header: ...
        footer: ...
        ListView {
            delegate: ...
        }
    }

[ChangeLog][Controls][Important Behavior Changes] Control::hoverEnabled
has been made to inherit to children, to make it possible to disable
hover effects for a tree of controls in one place.

Change-Id: Ia87144f2cc04957a32f89d3313816b91d97db635
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/quicktemplates2/qquickcontrol_p_p.h b/src/quicktemplates2/qquickcontrol_p_p.h
index 26760510..cae1ae59 100644
--- a/src/quicktemplates2/qquickcontrol_p_p.h
+++ b/src/quicktemplates2/qquickcontrol_p_p.h
@@ -111,6 +111,10 @@ public:
     static void updateLocaleRecur(QQuickItem *item, const QLocale &l);
     static QLocale calcLocale(const QQuickItem *item);
 
+    void updateHoverEnabled(bool enabled, bool xplicit);
+    static void updateHoverEnabledRecur(QQuickItem *item, bool enabled);
+    static bool calcHoverEnabled(const QQuickItem *item);
+
     void deleteDelegate(QObject *object);
 
     struct ExtraData {
@@ -131,6 +135,7 @@ public:
     bool hasLocale;
     bool hovered;
     bool wheelEnabled;
+    bool explicitHoverEnabled;
     qreal padding;
     qreal topPadding;
     qreal leftPadding;