Button: add highlighted property

Since our focus is on embedded, this will be used as an alternative to
the "isDefault" property that exists in Qt Quick Controls.

Change-Id: I9b6612e3c3b30040295aeea6d217e90a17af4ebe
Reviewed-by: J-P Nurmi <jpnurmi@theqtcompany.com>

2 files changed, 41 insertions, 0 deletions

diff --git a/src/templates/qquickbutton.cpp b/src/templates/qquickbutton.cpp
index 179e5bcd..7ec87cbf 100644
--- a/src/templates/qquickbutton.cpp
+++ b/src/templates/qquickbutton.cpp
@@ -83,11 +83,45 @@ QT_BEGIN_NAMESPACE
 
 class QQuickButtonPrivate : public QQuickAbstractButtonPrivate
 {
+public:
+    QQuickButtonPrivate();
+
+    bool highlighted;
 };
 
+QQuickButtonPrivate::QQuickButtonPrivate() :
+    highlighted(false)
+{
+}
+
 QQuickButton::QQuickButton(QQuickItem *parent) :
     QQuickAbstractButton(*(new QQuickButtonPrivate), parent)
 {
 }
 
+/*!
+    \qmlproperty bool Qt.labs.controls::Button::highlighted
+
+    This property holds whether the button is highlighted.
+
+    A button can be highlighted in order to draw the user's attention towards
+    it. It has no effect on keyboard interaction.
+
+    The default value is \c false.
+*/
+bool QQuickButton::isHighlighted() const
+{
+    Q_D(const QQuickButton);
+    return d->highlighted;
+}
+
+void QQuickButton::setHighlighted(bool highlighted)
+{
+    Q_D(QQuickButton);
+    if (highlighted != d->highlighted) {
+        d->highlighted = highlighted;
+        emit highlightedChanged();
+    }
+}
+
 QT_END_NAMESPACE
diff --git a/src/templates/qquickbutton_p.h b/src/templates/qquickbutton_p.h
index 1ee96a07..7ca0252b 100644
--- a/src/templates/qquickbutton_p.h
+++ b/src/templates/qquickbutton_p.h
@@ -57,10 +57,17 @@ class QQuickButtonPrivate;
 class Q_LABSTEMPLATES_EXPORT QQuickButton : public QQuickAbstractButton
 {
     Q_OBJECT
+    Q_PROPERTY(bool highlighted READ isHighlighted WRITE setHighlighted NOTIFY highlightedChanged FINAL)
 
 public:
     explicit QQuickButton(QQuickItem *parent = Q_NULLPTR);
 
+    bool isHighlighted() const;
+    void setHighlighted(bool highlighted);
+
+Q_SIGNALS:
+    void highlightedChanged();
+
 private:
     Q_DISABLE_COPY(QQuickButton)
     Q_DECLARE_PRIVATE(QQuickButton)