Add FieldCopyButton.qml, split from SignInSso.qml

src/gui/Base/Buttons/FieldCopyButton.qml

@@ -0,0 +1,31 @@
+// Copyright Mirage authors & contributors <https://github.com/mirukana/mirage>
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+import QtQuick 2.12
+import QtQuick.Layouts 1.12
+import ".."
+
+HButton {
+    property Item textControl  // HTextField or HTextArea
+
+
+    icon.name: "copy-text"
+    iconItem.small: true
+
+    toolTip.text: qsTr("Copy")
+    toolTip.onClosed: toolTip.text = qsTr("Copy")
+    toolTip.label.wrapMode: HLabel.NoWrap
+
+    onClicked: {
+        textControl.selectAll()
+        textControl.copy()
+        textControl.deselect()
+
+        toolTip.text = qsTr("Copied!")
+        toolTip.instantShow(2000)
+    }
+
+    onActiveFocusChanged: if (! activeFocus && toolTip.visible) toolTip.hide()
+
+    Layout.fillHeight: true
+}

src/gui/Pages/AddAccount/SignInSso.qml

@@ -65,25 +65,9 @@ SignInBase {
             Layout.fillHeight: true
         }
 
-        HButton {
+        FieldCopyButton {
             id: copyUrlButton
-            icon.name: "copy-text"
-            iconItem.small: true
-
-            toolTip.text: qsTr("Copy")
-            toolTip.onClosed: toolTip.text = qsTr("Copy")
-            toolTip.label.wrapMode: HLabel.NoWrap
-
-            onClicked: {
-                urlArea.selectAll()
-                urlArea.copy()
-                urlArea.deselect()
-
-                toolTip.text = qsTr("Copied!")
-                toolTip.instantShow(2000)
-            }
-
-            Layout.fillHeight: true
+            textControl: urlArea
         }
     }
 }