/// <summary>
/// Reads persited mru id's from isolated storage.
/// </summary>
static void Initialize()
{
if (_initialized)
return;
_initialized = true;
if (!IsolatedStorageFile.IsEnabled)
return;
ArcGISOnlineEnvironment.ArcGISOnline.Content.ItemDeleted += new EventHandler<ContentItemEventArgs>(ArcGISOnline_ItemDeleted);
//read mru map id's from isolated storage settings
IsolatedStorageSettings settings = IsolatedStorageSettings.ApplicationSettings;
for (int i = 0; i < _maxAmount; ++i)
{
if (settings.Contains(_mru + i))
{
//create a empty ContentItem and initialize with id only
//once the ContentItems are requested from a client we download them based on the id
ContentItem item = new ContentItem();
item.Id = (string)settings[_mru + i];
_contentItems.Add(item);
}
else
break;
}
}
/// <summary>
/// Adds a map to the list of mru maps.
/// </summary>
public static void Add(ContentItem item)
{
Initialize();
ContentItem existingItem = Find(item.Id);
if (existingItem != null)
{
//move item to top
_contentItems.Remove(existingItem);
}
if (_contentItems.Count == _maxAmount) //don't list more than a certain amount of maps
_contentItems.RemoveAt(_maxAmount - 1); //remove oldest
_contentItems.Insert(0, item);
Save();
}
/// <summary>
/// Gets the folder of a content item if the item is in a folder.
/// </summary>
void GetFolder(ContentItem item, EventHandler<RequestEventArgs> callback)
{
if (_agol.User.Current == null)
{
if (callback != null)
callback(null, new RequestEventArgs() { Error = new Exception(ESRI.ArcGIS.Mapping.Controls.ArcGISOnline.Resources.Strings.ExceptionGetFolderFailedUserSignedIn) });
return;
}
//if the folder has already been determined call back immediately
//
if (item.Folder != null)
{
callback(null, new RequestEventArgs());
return;
}
//get the user's content and find the item
//
GetUserContent(null, (object sender, UserContentEventArgs e) =>
{
if (e.Error != null)
{
callback(null, new RequestEventArgs() { Error = e.Error });
return;
}
UserContent userContent = e.Content;
if (userContent == null)
{
callback(null, new RequestEventArgs() { Error = new Exception(string.Format(ESRI.ArcGIS.Mapping.Controls.ArcGISOnline.Resources.Strings.ItemNotFound, item.Id)) });
return;
}
//first check if the item is in the content root level
//
if (userContent.ContentItems != null)
{
foreach (ContentItem contentItem in userContent.ContentItems)
if (contentItem.Id == item.Id)
{
//create a folder that represents the root folder by assigning an empty id
item.Folder = new ContentFolder() { Id = "" };
callback(null, new RequestEventArgs());
return;
}
}
//search folders for the content item
if (userContent.Folders == null || userContent.Folders.Length == 0)
callback(null, new RequestEventArgs() { Error = new Exception(string.Format(ESRI.ArcGIS.Mapping.Controls.ArcGISOnline.Resources.Strings.ItemNotFound, item.Id)) });
else
{
bool folderFound = false;
int foldersToSearch = 0;
int foldersSearched = 0;
foreach (ContentFolder folder in userContent.Folders)
{
foldersToSearch++;
ContentFolder folderToSearch = folder; //cache for reference in lambda expression
GetUserContent(folderToSearch.Id, (object sender2, UserContentEventArgs e2) =>
{
foldersSearched++;
if (e2.Content != null && e2.Content.ContentItems != null)
foreach (ContentItem contentItem in e2.Content.ContentItems)
if (contentItem.Id == item.Id)
{
folderFound = true; //make sure callback is not invoked on subsequent responses
item.Folder = folderToSearch;
callback(null, new RequestEventArgs());
return;
}
if (foldersSearched == foldersToSearch && !folderFound)
{
callback(null, new RequestEventArgs() { Error = new Exception(string.Format(ESRI.ArcGIS.Mapping.Controls.ArcGISOnline.Resources.Strings.ItemNotFound, item.Id)) });
return;
}
});
}
}
});
}
/// <summary>
/// Deletes the content item specified by its Id.
/// </summary>
public void Delete(ContentItem item, EventHandler<ContentItemEventArgs> callback)
{
if (_agol.User.Current == null)
{
if (callback != null)
callback(null, new ContentItemEventArgs() { Error = new Exception(ESRI.ArcGIS.Mapping.Controls.ArcGISOnline.Resources.Strings.ExceptionDeleteFailedUserSignIn), Id = item.Id });
return;
}
//find out if the item is located in a folder
//
GetFolder(item, (object sender, RequestEventArgs e) =>
{
if (e.Error != null)
{
if (callback != null)
callback(null, new ContentItemEventArgs() { Error = e.Error });
return;
}
string folderUrl = ContentFolder.IsSubfolder(item.Folder) ? "/" + item.Folder.Id : "";
string url = _agol.Url + "/content/users/" + _agol.User.Current.Username + folderUrl + "/items/" + item.Id + "/delete?f=json&token=" + _agol.User.Token;
WebUtil.UploadStringAsync(url, null, "", (object sender2, UploadStringCompletedEventArgs e2) =>
{
if (e2.Error != null)
{
if (callback != null)
callback(null, new ContentItemEventArgs() { Error = e2.Error, Id = item.Id });
return;
}
Success result = WebUtil.ReadObject<Success>(new MemoryStream(Encoding.UTF8.GetBytes(e2.Result)));
ContentItemEventArgs eventArgs = new ContentItemEventArgs() { Error = (result == null || !result.Succeeded) ? new Exception(ESRI.ArcGIS.Mapping.Controls.ArcGISOnline.Resources.Strings.ExceptionDeleteFailed) : null, Id = item.Id };
if (callback != null)
callback(null, eventArgs);
//raise event
if (ItemDeleted != null)
ItemDeleted(null, eventArgs);
});
});
}
/// <summary>
/// Gets the sharing information for the specified ContentItem which includes the groups
/// the item is shared with and overall access permission (public/non public).
/// </summary>
public void GetSharingInfo(ContentItem item, EventHandler<SharingInfoEventArgs> callback)
{
if (_agol.User.Current == null)
{
if (callback != null)
callback(null, new SharingInfoEventArgs());
return;
}
//find out if the item is located in a folder
//
GetFolder(item, (object sender, RequestEventArgs e) =>
{
if (e.Error != null)
{
if (callback != null)
callback(null, new SharingInfoEventArgs() { Error = e.Error });
return;
}
string folderUrl = ContentFolder.IsSubfolder(item.Folder) ? "/" + item.Folder.Id : "";
string url = _agol.Url + "content/users/" + _agol.User.Current.Username + folderUrl + "/items/" + item.Id + "?f=json&token=" + _agol.User.Token;
// add a bogus parameter to avoid the caching that happens with the WebClient
//
url += "&tickCount=" + Environment.TickCount.ToString();
WebUtil.OpenReadAsync(url, null, (sender2, e2) =>
{
if (e2.Error != null)
{
if (callback != null)
callback(null, new SharingInfoEventArgs() { Error = e2.Error });
return;
}
UserItem userItem = WebUtil.ReadObject<UserItem>(e2.Result);
if (callback != null)
callback(null, new SharingInfoEventArgs() { SharingInfo = (item == null) ? null : userItem.Sharing, Item = (item == null) ? null : userItem.ContentItem });
});
});
}
/// <summary>
/// Unshares the specified item from the specified groups.
/// </summary>
/// <param name="item"></param>
/// <param name="groupIds">A collection of group Ids which the specified item is unshared from.</param>
/// <param name="callback"></param>
public void UnshareItem(ContentItem item, string[] groupIds, EventHandler<RequestEventArgs> callback)
{
//find out if the item is located in a folder
//
GetFolder(item, (object sender, RequestEventArgs e) =>
{
if (e.Error != null)
{
if (callback != null)
callback(null, e);
return;
}
List<HttpContentItem> items = new List<HttpContentItem>();
items.Add(new HttpContentItem() { Name = "f", Value = "json" });
string groups = "";
if (groupIds != null)
foreach (string groupId in groupIds)
groups += groupId + ", ";
items.Add(new HttpContentItem() { Name = "groups", Value = groups });
string folderUrl = ContentFolder.IsSubfolder(item.Folder) ? "/" + item.Folder.Id : "";
string url = _agol.Url + "content/users/" + _agol.User.Current.Username + folderUrl + "/items/" + item.Id + "/unshare?token=" + _agol.User.Token;
WebUtil.MultiPartPostAsync(url, items, ApplicationUtility.Dispatcher, (sender2, e2) =>
{
UnshareItemResult result = WebUtil.ReadObject<UnshareItemResult>(e2.Result);
if (callback != null)
{
if (result != null)
callback(null, new RequestEventArgs());
else
callback(null, new RequestEventArgs() { Error = new Exception(string.Format(ESRI.ArcGIS.Mapping.Controls.ArcGISOnline.Resources.Strings.ExceptionFailedToShareItem, item.Id)) });
}
});
});
}
