qml: move dialogs out of controls/

electrum/gui/qml/components/MessageDialog.qml

@@ -0,0 +1,61 @@
+import QtQuick 2.6
+import QtQuick.Layouts 1.0
+import QtQuick.Controls 2.3
+import QtQuick.Controls.Material 2.0
+
+Dialog {
+    id: dialog
+    title: qsTr("Message")
+
+    property bool yesno: false
+    property alias text: message.text
+
+    signal yesClicked
+    signal noClicked
+
+    parent: Overlay.overlay
+    modal: true
+    x: (parent.width - width) / 2
+    y: (parent.height - height) / 2
+    Overlay.modal: Rectangle {
+        color: "#aa000000"
+    }
+
+    ColumnLayout {
+        TextArea {
+            id: message
+            Layout.preferredWidth: Overlay.overlay.width *2/3
+            readOnly: true
+            wrapMode: TextInput.WordWrap
+            //textFormat: TextEdit.RichText // existing translations not richtext yet
+            background: Rectangle {
+                color: 'transparent'
+            }
+        }
+
+        RowLayout {
+            Layout.alignment: Qt.AlignHCenter
+            Button {
+                text: qsTr('Ok')
+                visible: !yesno
+                onClicked: dialog.close()
+            }
+            Button {
+                text: qsTr('Yes')
+                visible: yesno
+                onClicked: {
+                    yesClicked()
+                    dialog.close()
+                }
+            }
+            Button {
+                text: qsTr('No')
+                visible: yesno
+                onClicked: {
+                    noClicked()
+                    dialog.close()
+                }
+            }
+        }
+    }
+}