qml: introduce OnboardingNav control

Author: jarolrod

src/Makefile.qt.include

@@ -318,6 +318,7 @@ QML_RES_QML = \
   qml/controls/NavButton.qml \
   qml/controls/PageIndicator.qml \
   qml/controls/OnboardingInfo.qml \
+  qml/controls/OnboardingNav.qml \
   qml/controls/OptionButton.qml \
   qml/controls/OptionSwitch.qml \
   qml/controls/ProgressIndicator.qml \

src/qml/bitcoin_qml.qrc

@@ -14,6 +14,7 @@
         <file>controls/NavButton.qml</file>
         <file>controls/PageIndicator.qml</file>
         <file>controls/OnboardingInfo.qml</file>
+        <file>controls/OnboardingNav.qml</file>
         <file>controls/OptionButton.qml</file>
         <file>controls/OptionSwitch.qml</file>
         <file>controls/ProgressIndicator.qml</file>

src/qml/controls/OnboardingNav.qml

@@ -0,0 +1,26 @@
+// Copyright (c) 2022 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+import QtQuick 2.15
+import QtQuick.Controls 2.15
+import QtQuick.Layouts 1.15
+
+Control {
+    id: root
+    property alias navButton: button_loader.sourceComponent
+    property bool alignLeft: true
+    height: 46
+    contentItem: RowLayout {
+        spacing: 0
+        Layout.fillWidth: true
+        Loader {
+            id: button_loader
+            Layout.rightMargin: 10
+            Layout.alignment: root.alignLeft ? Qt.AlignLeft : Qt.AlignRight
+            active: true
+            visible: active
+            sourceComponent: root.navButton
+        }
+    }
+}