Merge pull request #3606 from DonLakeFlyer/MissionLoad

Plan: Mission loads from vehicle automatically

src/MissionEditor/MissionEditor.qml

@@ -28,8 +28,6 @@ import QGroundControl.Controllers   1.0
 QGCView {
     id:         _root
 
-    property bool syncNeeded: controller.visualItems.dirty // Unsaved changes, visible to parent container
-
     viewPanel:          panel
 
     // zOrder comes from the Loader in MainWindow.qml
@@ -46,6 +44,7 @@ QGCView {
     readonly property int       _addMissionItemsButtonAutoOffTimeout:   10000
     readonly property var       _defaultVehicleCoordinate:   QtPositioning.coordinate(37.803784, -122.462276)
 
+    property bool   _syncNeeded:            controller.visualItems.dirty // Unsaved changes, visible to parent container
     property var    _visualItems:           controller.visualItems
     property var    _currentMissionItem
     property int    _currentMissionIndex:   0
@@ -561,7 +560,7 @@ QGCView {
                     DropButton {
                         id:                 syncButton
                         dropDirection:      dropRight
-                        buttonImage:        syncNeeded ? "/qmlimages/MapSyncChanged.svg" : "/qmlimages/MapSync.svg"
+                        buttonImage:        _syncNeeded ? "/qmlimages/MapSyncChanged.svg" : "/qmlimages/MapSync.svg"
                         viewportMargins:    ScreenTools.defaultFontPixelWidth / 2
                         exclusiveGroup:     _dropButtonsExclusiveGroup
                         dropDownComponent:  syncDropDownComponent
@@ -745,7 +744,7 @@ QGCView {
             QGCLabel {
                 width:      sendSaveGrid.width
                 wrapMode:   Text.WordWrap
-                text:       syncNeeded && !controller.autoSync ?
+                text:       _syncNeeded && !controller.autoSync ?
                                 qsTr("You have unsaved changed to you mission. You should send to your vehicle, or save to a file:") :
                                 qsTr("Sync:")
             }
@@ -771,7 +770,7 @@ QGCView {
                     enabled:            _activeVehicle && !controller.syncInProgress
                     onClicked: {
                         syncButton.hideDropDown()
-                        if (syncNeeded) {
+                        if (_syncNeeded) {
                             _root.showDialog(syncLoadFromVehicleOverwrite, qsTr("Mission overwrite"), _root.showDialogDefaultWidth, StandardButton.Yes | StandardButton.Cancel)
                         } else {
                             loadFromVehicle()
@@ -793,7 +792,7 @@ QGCView {
                     enabled:            !controller.syncInProgress
                     onClicked: {
                         syncButton.hideDropDown()
-                        if (syncNeeded) {
+                        if (_syncNeeded) {
                             _root.showDialog(syncLoadFromFileOverwrite, qsTr("Mission overwrite"), _root.showDialogDefaultWidth, StandardButton.Yes | StandardButton.Cancel)
                         } else {
                             loadFromFile()

src/MissionManager/MissionController.cc

@@ -79,7 +79,7 @@ void MissionController::_newMissionItemsAvailableFromVehicle(void)
         //      - Always accepts new items from the vehicle so Fly view is kept up to date
         // Edit Mode:
         //      - Either a load from vehicle was manually requested or
-        //      - The initial automatic load from a vehicle completed and the current editor it empty
+        //      - The initial automatic load from a vehicle completed and the current editor is empty
 
         QmlObjectListModel* newControllerMissionItems = new QmlObjectListModel(this);
         const QList<MissionItem*>& newMissionItems = _activeVehicle->missionManager()->missionItems();
@@ -948,6 +948,10 @@ void MissionController::_activeVehicleChanged(Vehicle* activeVehicle)
         _activeVehicle = NULL;
     }
 
+    // We always remove all items on vehicle change. This leaves a user model hole:
+    //      If the user has unsaved changes in the Plan view they will lose them
+    removeAllMissionItems();
+
     _activeVehicle = activeVehicle;
 
     if (_activeVehicle) {
@@ -959,8 +963,9 @@ void MissionController::_activeVehicleChanged(Vehicle* activeVehicle)
         connect(_activeVehicle, &Vehicle::homePositionAvailableChanged,     this, &MissionController::_activeVehicleHomePositionAvailableChanged);
         connect(_activeVehicle, &Vehicle::homePositionChanged,              this, &MissionController::_activeVehicleHomePositionChanged);
 
-        if (!_editMode) {
+        if (!syncInProgress()) {
-            removeAllMissionItems();
+            // We have to manually ask for the items from the Vehicle
+            getMissionItems();
         }
 
         _activeVehicleHomePositionChanged(_activeVehicle->homePosition());

src/MissionManager/MissionControllerTest.cc

@@ -175,8 +175,13 @@ void MissionControllerTest::_testOfflineToOnlineWorker(MAV_AUTOPILOT firmwareTyp
     // Go online to empty vehicle
     MissionControllerManagerTest::_initForFirmwareType(firmwareType);
 
+#if 1
+    // Due to current limitations, offline items will go away
+    QCOMPARE(_missionController->visualItems()->count(), 1);
+#else
     //Make sure our offline mission items are still there
     QCOMPARE(_missionController->visualItems()->count(), 2);
+#endif
 }
 
 void MissionControllerTest::_testOfflineToOnlineAPM(void)

src/MissionManager/MissionManager.cc

@@ -44,6 +44,11 @@ MissionManager::~MissionManager()
 
 void MissionManager::writeMissionItems(const QList<MissionItem*>& missionItems)
 {
+    if (inProgress()) {
+        qCDebug(MissionManagerLog) << "writeMissionItems called while transaction in progress";
+        return;
+    }
+
     bool skipFirstItem = !_vehicle->firmwarePlugin()->sendHomePositionToVehicle();
 
     _missionItems.clear();
@@ -68,11 +73,6 @@ void MissionManager::writeMissionItems(const QList<MissionItem*>& missionItems)
 
     qCDebug(MissionManagerLog) << "writeMissionItems count:" << _missionItems.count();
     
-    if (inProgress()) {
-        qCDebug(MissionManagerLog) << "writeMissionItems called while transaction in progress";
-        return;
-    }
-
     // Prime write list
     for (int i=0; i<_missionItems.count(); i++) {
         _itemIndicesToWrite << i;
@@ -133,6 +133,11 @@ void MissionManager::requestMissionItems(void)
 {
     qCDebug(MissionManagerLog) << "requestMissionItems read sequence";
 
+    if (inProgress()) {
+        qCDebug(MissionManagerLog) << "requestMissionItems called while transaction in progress";
+        return;
+    }
+    
     mavlink_message_t               message;
     mavlink_mission_request_list_t  request;