public override void DragOver(IDropInfo dropInfo)
{
base.DragOver(dropInfo);
this._currentMoveTaskToOtherLanePayload = null;
this._currentMoveTaskToOtherPositionPayload = null;
var targetCollection = dropInfo.TargetCollection;
var sourceItem = (TaskBoardTaskViewModel)dropInfo.Data;
var targetLane = this._taskboardLaneViewModels.SingleOrDefault(x => Equals(x.Tasks, targetCollection));
var sourceLane = this._taskboardLaneViewModels.SingleOrDefault(lane => lane.Tasks.Contains(sourceItem));
if (sourceLane != null && targetLane != null)
{
var targetItem = dropInfo.TargetItem as TaskBoardTaskViewModel;
if (sourceLane != targetLane)
{
this.PrepareMoveTaskToOtherLane(sourceLane, targetLane, sourceItem, targetItem);
}
else
{
this.PrepareMoveTaskPosition(sourceItem, targetItem);
}
}
}
private void PrepareMoveTaskToOtherLane(TaskBoardLaneViewModel sourceLane, TaskBoardLaneViewModel targetLane,
TaskBoardTaskViewModel sourceItem,
TaskBoardTaskViewModel targetItem = null)
{
this._currentMoveTaskToOtherPositionPayload = null;
this._currentMoveTaskToOtherLanePayload =
new TaskChangedLanePayload(sourceLane, targetLane, sourceItem, targetItem);
}
public override void Drop(IDropInfo dropInfo)
{
base.Drop(dropInfo);
if (this._currentMoveTaskToOtherPositionPayload != null)
{
this._whenTaskChangedPosition.OnNext(this._currentMoveTaskToOtherPositionPayload);
}
else if (this._currentMoveTaskToOtherLanePayload != null)
{
this._whenTaskChangedLane.OnNext(this._currentMoveTaskToOtherLanePayload);
}
this._currentMoveTaskToOtherLanePayload = null;
this._currentMoveTaskToOtherPositionPayload = null;
}
