private void SetImageSource()
{
ImageFeedItem image = DataContext as ImageFeedItem;
if (image == null)
{
return;
}
_viewport.ScatterViewItem = this.FindVisualParent <ScatterViewItem>();
if (image.SourceType == SourceType.Twitter || image.Sizes == null)
{
_image.UriSource = image.ThumbnailUri;
return;
}
Uri original = (from kvp in image.Sizes where kvp.Key.Width > 1024 || kvp.Key.Height > 1024 select kvp.Value).FirstOrDefault();
Uri large = (from kvp in image.Sizes where kvp.Key.Width == 1024 || kvp.Key.Height == 1024 select kvp.Value).FirstOrDefault();
Uri medium = (from kvp in image.Sizes where kvp.Key.Width == 500 || kvp.Key.Height == 500 select kvp.Value).FirstOrDefault();
Uri chosen = null;
if (large == null && original != null)
{
chosen = original;
}
else if (large != null)
{
chosen = large;
}
else if (medium != null)
{
chosen = medium;
}
_image.UriSource = chosen != null ? chosen : image.ThumbnailUri;
}
/// <summary>
/// Determines the size of the image to load and displays it.
/// </summary>
internal void RenderContent()
{
ImageFeedItem image = DataContext as ImageFeedItem;
_viewport.Reset();
if (image == null)
{
_image.UriSource = null;
return;
}
if (image.SourceType == SourceType.Flickr)
{
ImageFeedItem.GetFlickrImageSizes(
image,
Settings.Default.FlickrApiKey,
new GetFlickrImageSizesCallback((imageFeedItem) => SetImageSource()));
}
else
{
SetImageSource();
}
}
/// <summary>
/// Creates an image extension.
/// </summary>
/// <param name="client">The Google Ads API client.</param>
/// <param name="customerId">The client customer ID.</param>
/// <param name="imageAssetId">The ID of the image asset to be used for creating image
/// extension.</param>
/// <returns>Resource name of the newly created image extension.</returns>
private static string CreateImageExtension(GoogleAdsClient client, long customerId,
long imageAssetId)
{
// Get the ExtensionFeedItemServiceClient.
ExtensionFeedItemServiceClient extensionFeedItemService =
client.GetService(Services.V10.ExtensionFeedItemService);
// Creates the image feed item using the provided image.
ImageFeedItem imageFeedItem = new ImageFeedItem()
{
ImageAsset = ResourceNames.Asset(customerId, imageAssetId)
};
// Creates an ExtensionFeedItem from the ImageFeedItem.
ExtensionFeedItem extensionFeedItem = new ExtensionFeedItem()
{
ImageFeedItem = imageFeedItem
};
ExtensionFeedItemOperation operation = new ExtensionFeedItemOperation()
{
Create = extensionFeedItem
};
// Adds the ExtensionFeedItem.
MutateExtensionFeedItemsResponse response =
extensionFeedItemService.MutateExtensionFeedItems(customerId.ToString(),
new[] { operation });
// Displays the result.
string resourceName = response.Results.First().ResourceName;
Console.WriteLine($"Created an image extension with resource name '{resourceName}'.");
return(resourceName);
}
/// <summary>
/// Processes the response from the feed service.
/// </summary>
/// <param name="response">response from the feed service.</param>
internal override void ProcessResponse(object responseObject)
{
string response = responseObject.ToString();
if (response.Contains("<rsp stat=\"fail\">"))
{
#if DEBUG
throw new InvalidOperationException(response);
#else
return;
#endif
}
XDocument document = XDocument.Parse(response);
foreach (XElement node in document.Element("rsp").Element("photos").Elements("photo"))
{
_flickrUserNameCache[node.Attribute("owner").Value] = node.Attribute("ownername").Value;
_minUploadDate = Math.Max(_minUploadDate, long.Parse(node.Attribute("dateupload").Value, CultureInfo.InvariantCulture));
ImageFeedItem feedItem = new ImageFeedItem
{
// Build the page URI with the user photo url, since that's what a user would put in the ban list.
Uri = new Uri(string.Format(
CultureInfo.InvariantCulture,
SourceUriFormatString,
string.IsNullOrEmpty(node.Attribute("pathalias").Value) ? node.Attribute("owner").Value : node.Attribute("pathalias").Value,
node.Attribute("id").Value)),
Date = FlickrSearchFeed.ConvertFromUnixTimestamp(int.Parse(node.Attribute("dateupload").Value, CultureInfo.InvariantCulture)),
Author = HttpUtility.HtmlDecode(_flickrUserNameCache[node.Attribute("owner").Value]),
AvatarUri = new Uri(string.Format(
CultureInfo.InstalledUICulture,
AvatarUriFormatString,
node.Attribute("iconfarm").Value,
node.Attribute("iconserver").Value,
node.Attribute("owner").Value)),
SourceType = SourceType.Flickr,
Title = HttpUtility.HtmlDecode(node.Attribute("title").Value),
Caption = HttpUtility.HtmlDecode(StripHtml(node.Element("description") != null ? node.Element("description").Value : string.Empty)),
ThumbnailUri = new Uri(string.Format(
CultureInfo.InvariantCulture,
ThumbnailUriFormatString,
node.Attribute("farm").Value,
node.Attribute("server").Value,
node.Attribute("id").Value,
node.Attribute("secret").Value)),
ServiceId = node.Attribute("id").Value
};
if (feedItem.Date < MinDate)
{
continue;
}
RaiseGotNewFeedItem(feedItem);
}
}
/// <summary>
/// Processes the response to convert owner's posts into feed items.
/// </summary>
/// <param name="response">response from the feed service.</param>
internal void ProcessResponseWithOwner(dynamic response)
{
#region Process Owner's Image Items
if (response.data[_ownerPhotoDataIndex]["fql_result_set"].Count > 0) // ownerphotodata
{
foreach (dynamic photo in response.data[_ownerPhotoDataIndex]["fql_result_set"]) // ownerphotodata
{
foreach (dynamic author in response.data[_ownerPhotoAuthorDataIndex]["fql_result_set"]) // ownerphotoauthordata
{
DateTime created = ConvertFromUnixTimestamp(double.Parse(photo["created"].ToString()));
if (created < MinDate)
{
continue;
}
// add a feed if matching author is found for the post
if (photo.owner == author.page_id)
{
ImageFeedItem feedItem = new ImageFeedItem
{
Author = (string)author["name"],
AvatarUri = new Uri((string)author["pic_small"]),
Date = created,
ServiceId = (string)photo["pid"],
Uri = new Uri(string.Format(CultureInfo.InvariantCulture, (string)photo["link"])),
SourceType = SourceType.Facebook,
Caption = (string)photo["caption"],
ThumbnailUri = new Uri(string.Format(CultureInfo.InvariantCulture, (string)photo["src_big"])),
};
RaiseGotNewFeedItem(feedItem);
}
break;
}
}
}
#endregion
#region Process Owner's Status Items
if (response.data[_ownerStatusStreamIndex]["fql_result_set"].Count > 0)
{
foreach (dynamic post in response.data[_ownerStatusStreamIndex]["fql_result_set"]) // ownerstatusstream
{
foreach (dynamic author in response.data[_ownerStatusAuthorDataIndex]["fql_result_set"]) // ownerstatusauthordata
{
if (post.actor_id == author.page_id)
{
// create status feed item if matching author data is found for this post
DateTime created = ConvertFromUnixTimestamp(double.Parse(post["created_time"].ToString()));
if (created < MinDate)
{
continue;
}
StatusFeedItem feedItem = new StatusFeedItem
{
Author = (string)author["name"],
AvatarUri = new Uri((string)author["pic_small"]),
Date = created,
ServiceId = (string)post["post_id"],
Uri = new Uri(string.Format(CultureInfo.InvariantCulture, (string)post["permalink"])),
Status = (string)post["message"],
SourceType = SourceType.Facebook,
};
RaiseGotNewFeedItem(feedItem);
break;
}
}
}
}
#endregion
}