Very early KDE 6 release.

plasma/look-and-feel/authui7/contents/components/GenericButton.qml

@@ -0,0 +1,87 @@
+import QtQuick 2.4
+import QtQuick.Controls 2.15
+import QtQuick.Layouts 1.1
+import QtQuick.Window 2.1
+import Qt5Compat.GraphicalEffects
+
+import org.kde.kirigami 2.20 as Kirigami
+import org.kde.ksvg as KSvg
+import org.kde.plasma.core 2.0 as PlasmaCore
+import org.kde.plasma.components 3.0 as PlasmaComponents
+import org.kde.plasma.extras 2.0 as PlasmaExtras
+
+Control {
+    id: genericButton
+    signal clicked
+
+    property string text: "";
+    property var iconSource: "";
+    property int iconSize: Kirigami.Units.iconSizes.smallMedium;
+    property alias label: btnLabel
+
+    Keys.priority: Keys.AfterItem
+    Keys.onPressed: (event) => {
+        if(event.key == Qt.Key_Return) {
+            genericButton.clicked();
+        }
+    }
+
+    KSvg.FrameSvgItem {
+        id: texture
+        z: -1
+        anchors.fill: parent
+        imagePath: Qt.resolvedUrl("../images/button.svg");
+        prefix: {
+            var result = "";
+            if(genericButton.focus) result = "focus-";
+            if(buttonMA.containsPress) result = "pressed";
+            else if(buttonMA.containsMouse) result += "hover";
+            else result += "normal";
+            return result;
+        }
+    }
+    MouseArea {
+        id: buttonMA
+        z: 99
+        anchors.fill: parent
+        hoverEnabled: true
+        acceptedButtons: Qt.LeftButton;
+        onClicked: {
+            genericButton.clicked();
+        }
+    }
+    Kirigami.Icon {
+        id: btnIcon
+        z: 0
+        anchors.centerIn: genericButton
+        width: genericButton.iconSize
+        height: width
+        animated: false
+        //usesPlasmaTheme: false
+        source: genericButton.iconSource
+        visible: genericButton.iconSource !== ""
+    }
+    PlasmaComponents.Label {
+        id: btnLabel
+        z: 0
+        anchors.fill: parent
+        text: genericButton.text
+        visible: genericButton.text !== ""
+        verticalAlignment: Text.AlignVCenter
+        horizontalAlignment: Text.AlignHCenter
+        elide: Text.ElideRight
+        renderType: Text.NativeRendering
+        font.hintingPreference: Font.PreferFullHinting
+        font.kerning: false
+        layer.enabled: genericButton.text !== ""
+        layer.effect: DropShadow {
+            //visible: !softwareRendering
+            horizontalOffset: 0
+            verticalOffset: 1
+            radius: 6
+            samples: 14
+            spread: 0.0001
+            color: "#bf000000"
+        }
+    }
+}