QML UI: add property to reflect when dive list is shown

This makes it easier to have actions that are only valid in this case.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-mobile/qml/DiveList.qml

@@ -214,8 +214,10 @@ MobileComponents.Page {
 		onVisibleChanged: {
 			if (visible) {
 				page.mainAction = page.saveAction
+				showingDiveList = false
 			} else {
 				page.mainAction = null
+				showingDiveList = true
 			}
 		}
 

qt-mobile/qml/main.qml

@@ -15,6 +15,7 @@ MobileComponents.ApplicationWindow {
 	property int oldStatus: -1
 	property alias accessingCloud: manager.accessingCloud
 	property QtObject notification: null
+	property bool showingDiveList: false
 	onAccessingCloudChanged: {
 		if (accessingCloud) {
 			showPassiveNotification("Accessing Subsurface Cloud Storage", 500000);