mobile-widgets/qml: use showPin/oldStatus consistently

Remove aliases for showPin/oldStatus and reference prefs.showPin/oldStatus directly.

showPin/oldStatus are "temporary" variables, that are not saved in settings,
so they easily be replaced

Signed-off-by: Jan Iversen <jani@apache.org>

mobile-widgets/qml/CloudCredentials.qml

@@ -53,7 +53,7 @@ Item {
 
 		Controls.Label {
 			text: qsTr("Email")
-			visible: !rootItem.showPin
+			visible: !prefs.showPin
 			font.pointSize: subsurfaceTheme.smallPointSize
 			color: subsurfaceTheme.secondaryTextColor
 		}
@@ -61,7 +61,7 @@ Item {
 		Controls.TextField {
 			id: login
 			text: prefs.cloudUserName
-			visible: !rootItem.showPin
+			visible: !prefs.showPin
 			Layout.fillWidth: true
 			inputMethodHints: Qt.ImhEmailCharactersOnly |
 					  Qt.ImhNoAutoUppercase
@@ -69,7 +69,7 @@ Item {
 
 		Controls.Label {
 			text: qsTr("Password")
-			visible: !rootItem.showPin
+			visible: !prefs.showPin
 			font.pointSize: subsurfaceTheme.smallPointSize
 			color: subsurfaceTheme.secondaryTextColor
 		}
@@ -87,20 +87,20 @@ Item {
 
 		Controls.Label {
 			text: qsTr("PIN")
-			visible: rootItem.showPin
+			visible: prefs.showPin
 		}
 		Controls.TextField {
 			id: pin
 			text: ""
 			Layout.fillWidth: true
-			visible: rootItem.showPin
+			visible: prefs.showPin
 		}
 
 		RowLayout {
 			Layout.fillWidth: true
 			Layout.margins: Kirigami.Units.smallSpacing
 			spacing: Kirigami.Units.smallSpacing
-			visible: rootItem.showPin
+			visible: prefs.showPin
 			SsrfButton {
 				id: registerpin
 				text: qsTr("Register") 
@@ -126,7 +126,7 @@ Item {
 			Layout.fillWidth: true
 			Layout.margins: Kirigami.Units.smallSpacing
 			spacing: Kirigami.Units.smallSpacing
-			visible: !rootItem.showPin
+			visible: !prefs.showPin
 
 			SsrfButton {
 				id: signin_register_normal

mobile-widgets/qml/StartPage.qml

@@ -28,7 +28,7 @@ Kirigami.ScrollablePage {
 		}
 		Controls.Label {
 			id: explanationTextBasic
-			visible: !showPin
+			visible: !prefs.showPin
 			Layout.fillWidth: true
 			Layout.margins: Kirigami.Units.gridUnit
 			Layout.topMargin: Kirigami.Units.gridUnit * 3
@@ -41,7 +41,7 @@ Kirigami.ScrollablePage {
 		}
 		Controls.Label {
 			id: explanationTextPin
-			visible: showPin
+			visible: prefs.showPin
 			Layout.fillWidth: true
 			Layout.margins: Kirigami.Units.gridUnit
 			Layout.topMargin: Kirigami.Units.gridUnit * 3

mobile-widgets/qml/main.qml

@@ -26,11 +26,9 @@ Kirigami.ApplicationWindow {
 	pageStack.globalToolBar.preferredHeight: Math.round(Kirigami.Units.gridUnit * (Qt.platform.os == "ios" ? 2 : 1.5))
 	pageStack.globalToolBar.maximumHeight: Kirigami.Units.gridUnit * 2
 
-	property alias oldStatus: prefs.oldStatus
 	property alias notificationText: manager.notificationText
 	property alias locationServiceEnabled: manager.locationServiceEnabled
 	property alias pluggedInDeviceName: manager.pluggedInDeviceName
-	property alias showPin: prefs.showPin
 	property alias defaultCylinderIndex: settingsWindow.defaultCylinderIndex
 	property bool filterToggle: false
 	property string filterPattern: ""
@@ -249,8 +247,8 @@ Kirigami.ApplicationWindow {
 					if (prefs.credentialStatus == CloudStatus.CS_UNKNOWN) {
 						// the user has asked to change credentials - if the credentials before that
 						// were valid, go back to dive list
-						if (oldStatus == CloudStatus.CS_VERIFIED) {
+						if (prefs.oldStatus == CloudStatus.CS_VERIFIED) {
-							prefs.credentialStatus = oldStatus
+							prefs.credentialStatus = prefs.oldStatus
 						}
 					}
 					returnTopPage()
@@ -334,7 +332,7 @@ Kirigami.ApplicationWindow {
 					onTriggered: {
 						if (prefs.credentialStatus === CloudStatus.CS_NOCLOUD) {
 							returnTopPage()
-							oldStatus = prefs.credentialStatus
+							prefs.oldStatus = prefs.credentialStatus
 							manager.startPageText = "Enter valid cloud storage credentials"
 							prefs.credentialStatus = CloudStatus.CS_UNKNOWN
 							globalDrawer.close()