Add DelayButton

[ChangeLog][Controls][DelayButton] Added DelayButton.

Change-Id: I94820dfb41ba9b90f0a29cda01ac476b54cf3de8
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

2 files changed, 97 insertions, 0 deletions

diff --git a/src/imports/controls/universal/DelayButton.qml b/src/imports/controls/universal/DelayButton.qml
new file mode 100644
index 00000000..9d43be44
--- /dev/null
+++ b/src/imports/controls/universal/DelayButton.qml
@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.9
+import QtQuick.Templates 2.2 as T
+import QtQuick.Controls.Universal 2.2
+
+T.DelayButton {
+    id: control
+
+    implicitWidth: Math.max(background ? background.implicitWidth : 0,
+                            contentItem.implicitWidth + leftPadding + rightPadding)
+    implicitHeight: Math.max(background ? background.implicitHeight : 0,
+                             contentItem.implicitHeight + topPadding + bottomPadding)
+    baselineOffset: contentItem.y + contentItem.baselineOffset
+
+    padding: 8
+    topPadding: padding - 4
+    bottomPadding: padding - 4
+
+    property bool useSystemFocusVisuals: true
+
+    transition: Transition {
+        NumberAnimation {
+            duration: control.delay * (control.pressed ? 1.0 - control.progress : 0.3 * control.progress)
+        }
+    }
+
+    contentItem: Text {
+        text: control.text
+        font: control.font
+        elide: Text.ElideRight
+        horizontalAlignment: Text.AlignHCenter
+        verticalAlignment: Text.AlignVCenter
+
+        opacity: enabled ? 1.0 : 0.2
+        color: control.Universal.foreground
+    }
+
+    background: Rectangle {
+        implicitWidth: 32
+        implicitHeight: 32
+
+        color: control.down ? control.Universal.baseMediumLowColor :
+               control.enabled && control.checked ? control.Universal.accent : control.Universal.baseLowColor
+
+        Rectangle {
+            visible: !control.checked
+            width: parent.width * control.progress
+            height: parent.height
+            color: control.Universal.accent
+        }
+
+        Rectangle {
+            width: parent.width
+            height: parent.height
+            color: "transparent"
+            visible: control.hovered
+            border.width: 2 // ButtonBorderThemeThickness
+            border.color: control.Universal.baseMediumLowColor
+        }
+    }
+}
diff --git a/src/imports/controls/universal/universal.pri b/src/imports/controls/universal/universal.pri
index 833bf2b6..c80a2dfc 100644
--- a/src/imports/controls/universal/universal.pri
+++ b/src/imports/controls/universal/universal.pri
@@ -6,6 +6,7 @@ QML_FILES += \
     $$PWD/CheckDelegate.qml \
     $$PWD/CheckIndicator.qml \
     $$PWD/ComboBox.qml \
+    $$PWD/DelayButton.qml \
     $$PWD/Dial.qml \
     $$PWD/Dialog.qml \
     $$PWD/DialogButtonBox.qml \