/// <summary>
/// Update the explorer listview met items that resides in the parent folder.
/// </summary>
private void ToParentFolder()
{
if (SelectedDriveFolder is null)
{
return;
}
if (ParentItem is null)
{
return;
}
string id = ParentItem.ParentItemId;
List <CachedDriveItem> ParentItemList = App.Current.CacheHelper.GetDriveOrItemsWithParentId(SelectedDriveFolder, id);
// Update both the UI and the cached items with the new list.
ExplorerItemsList = ParentItemList;
App.Current.MediaItemList = ParentItemList;
if (App.Current.CacheHelper.IsParentChildOfDrive(SelectedDriveFolder, id))
{
ParentItem = null;
}
else
{
// Every time we go up a folder, we need to set the ParentItem to one higher
ParentItem = App.Current.CacheHelper.GetParentItemByParentItemId(SelectedDriveFolder, ParentItem.ParentItemId);
}
}
/// <summary>
/// Retrieves the children that are inside an item and fills the the Childrenlist property with those items.
/// </summary>
/// <param name="obj"></param>
public async void GetChildrenFomItem()
{
//Prevents exception when user clicks an empty space in the ListBox.
if (SelectedExplorerItem is null)
{
return;
}
if (SelectedDriveFolder is null)
{
return;
}
//Checks if the SelectedExplorerItem is an folder.
if (SelectedExplorerItem.IsFolder)
{
//Sets the current selected item as a parent item.
ParentItem = SelectedExplorerItem;
string ItemId = SelectedExplorerItem.ItemId;
List <CachedDriveItem> driveItems = await App.Current.CacheHelper.GetCachedChildrenFromItem(SelectedDriveFolder, ItemId);
Debug.WriteLine(" + Loaded folder.");
// Update both the UI and the cached items with the new list.
ExplorerItemsList = driveItems;
App.Current.MediaItemList = driveItems;
}
else
{
OpenItemWithVideoPlayer(SelectedExplorerItem);
}
Debug.WriteLine(" + Loaded children from folder item.");
}
/// <summary>
/// Opens the selected item with the videoplayer.
/// </summary>
private void OpenItemWithVideoPlayer(CachedDriveItem SelectedExplorerItem)
{
MediaWrapper MediaWrapper = new MediaWrapper(SelectedExplorerItem, SelectedDriveId);
// Navigate to the VideoPlayerPage
NavigationService.Navigate <VideoPlayerPage>(MediaWrapper);
}
/// <summary>
/// Retrieves the children that are inside the drive and fills the the Childrenlist property with those items.
/// </summary>
/// <param name="obj"></param>
public async void GetChildrenFomDrive()
{
ParentItem = null;
//Prevents exception when user clicks an empty space in the ListBox.
if (SelectedDriveFolder is null)
{
return;
}
;
//Sets the SelectedDriveId field with the driveid of the selected drive.
SelectedDriveId = SelectedDriveFolder.DriveId;
//Sets the item id of the selectedItem variable.
string itemId = SelectedDriveFolder.Id;
List <CachedDriveItem> driveItems = await App.Current.CacheHelper.GetCachedChildrenFromDrive(SelectedDriveId, itemId);
if (driveItems is null)
{
// Show dialog and return
//MessageBox.Show("An error has occured while entering this shared folder. Please try again later.");
return;
}
Debug.WriteLine(" + Loaded children from selected Drive.");
// Update both the UI and the cached items with the new list.
ExplorerItemsList = driveItems;
App.Current.MediaItemList = driveItems;
}
/// <summary>
/// Convert a GraphItem retreived from the MS Graph API to a CachedDriveItem. This means filtering out
/// items which are not folder or file with the correct mimetype.
/// </summary>
/// <param name="GraphItem">The MS Graph item to convert</param>
/// <returns>A CachedDriveItem in case the item is a correct file or a folder, null otherwise.</returns>
public CachedDriveItem ConvertGraphItem(DriveItem GraphItem)
{
// Check if the item to convert is either a folder or file.
if (GraphItem.Folder is null && GraphItem.File is null)
{
return(null);
}
//TODO: Remove the mkv extension workaround when Graph is fixed or a better solution is implemented.
// Check that files have the correct mimetype (either contains audio or video).
if (GraphItem.File != null && !(GraphItem.File.MimeType.Contains("video") || GraphItem.File.MimeType.Contains("audio") || Path.GetExtension(GraphItem.Name).Equals(".mkv")))
{
return(null);
}
CachedDriveItem ConvertedItem = new CachedDriveItem
{
ItemId = GraphItem.Id,
IsFolder = GraphItem.Folder != null,
Name = GraphItem.Name,
Size = GraphItem.Size ?? 0
};
if (ConvertedItem.IsFolder)
{
ConvertedItem.ChildCount = GraphItem.Folder.ChildCount;
}
else
{
// GraphItem.File won't be null since we checked that beforehand
ConvertedItem.MimeType = GraphItem.File.MimeType;
}
return(ConvertedItem);
}
/// <summary>
/// Converts objects on runtime.
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <param name="parameter"></param>
/// <param name="culture"></param>
/// <returns></returns>
public object Convert(object value, Type targetType, object parameter, string language)
{
//Changes the ItemContentType icon of the items in the explorer.
if (parameter.Equals("ContentTypeExplorerItem"))
{
if ((bool)value)
{
return("/Assets/Icons/folder.png");
}
else
{
return("/Assets/Icons/MultiMediaIcon.png");
}
}
//Returns the item child when it's a folder. Otherwise return a line.
if (parameter.Equals("ContentChildCountExplorer"))
{
CachedDriveItem item = (CachedDriveItem)value;
if (item.IsFolder)
{
return(item.ChildCount);
}
return("-");
}
//Returns the correct size format.
if (parameter.Equals("ContentItemSizeExplorer"))
{
Console.WriteLine(value);
long size = (long)value;
if (size > 1000 && size < 1000000000)
{
return(Math.Round((size / (double)Math.Pow(1024, 2))) + " MB");
}
else if (size > 1000000000)
{
return(Decimal.Round((Decimal)(size / (double)Math.Pow(1024, 3)), 2) + " GB");
}
else
{
return(size + " Bytes");
}
}
return(null);
}
public CachedDriveItem GetParentItemByParentItemId(CachedDrive SelectedDriveFolder, string ParentId)
{
lock (CacheLock)
{
try
{
// Get the current drive from the cache
CachedDrive CurrentDrive = CurrentUserCache.Drives.First((currentDrive) => currentDrive.DriveId.Equals(SelectedDriveFolder.DriveId) && currentDrive.Id.Equals(SelectedDriveFolder.Id));
CachedDriveItem Parent = CurrentDrive.ItemList.First((currentItem) => currentItem.ItemId.Equals(ParentId));
return(Parent);
}
catch (InvalidOperationException)
{
// This should not happen.
return(null);
}
}
}
public async Task <List <CachedDriveItem> > GetItemChildrenFromGraph(string DriveId, string ItemId)
{
List <DriveItem> ItemsFromGraph = (await Graph.GetChildrenOfItemAsync(DriveId, ItemId)).ToList();
List <CachedDriveItem> ChildrenFromItem = new List <CachedDriveItem>();
ItemsFromGraph.ForEach((graphItem) =>
{
CachedDriveItem ConvertedItem = this.ConvertGraphItem(graphItem);
if (ConvertedItem != null)
{
ConvertedItem.ParentItemId = graphItem.ParentReference.Id;
ChildrenFromItem.Add(ConvertedItem);
}
});
return(ChildrenFromItem);
}
public async Task <List <CachedDriveItem> > GetDriveChildrenFromGraph(string SelectedDriveId, string ItemId)
{
List <DriveItem> ItemsFromGraph = (await Graph.GetChildrenOfItemAsync(SelectedDriveId, ItemId)).ToList();
// Convert Graph DriveItems to CachedDriveItems
List <CachedDriveItem> DriveChildren = new List <CachedDriveItem>();
ItemsFromGraph.ForEach((graphDriveItem) =>
{
CachedDriveItem ConvertedItem = this.ConvertGraphItem(graphDriveItem);
if (ConvertedItem != null)
{
ConvertedItem.ParentItemId = ItemId;
DriveChildren.Add(ConvertedItem);
}
});
return(DriveChildren);
}
public MediaWrapper(CachedDriveItem cachedDriveItem, string driveId)
{
DriveId = driveId;
CachedDriveItem = cachedDriveItem;
}
