internal async void EnqueueImageDownload(ReportViewItem viewItem)
{
Debug.WriteLine(string.Format("Enqueuing download for '{0}'...", viewItem.NativeId));
// create a new task...
// var theUrl = await Task.Run<string>(async () =>
// {
Debug.WriteLine(string.Format("Requesting image for '{0}'...", viewItem.NativeId));
// load...
var proxy = ServiceProxyFactory.Current.GetHandler<IGetReportImageServiceProxy>();
var result = await proxy.GetReportImageAsync(viewItem.NativeId);
// check...
result.AssertNoErrors();
// create the new file...
var filename = GetCacheFilename(viewItem);
var cacheFolder = await this.GetCacheFolderAsync();
var cacheFile = await cacheFolder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);
using (var stream = await cacheFile.OpenStreamForWriteAsync())
stream.Write(result.ImageBytes, 0, result.ImageBytes.Length);
// get the URL...
string url = this.CalculateLocalImageUrl(viewItem);
Debug.WriteLine(string.Format("Image load for '{0}' finished.", viewItem.NativeId));
//return url;
// });
// set it...
viewItem.ImageUri = url;
}
internal void EnqueueImageDownload(ReportViewItem viewItem)
{
Debug.WriteLine(string.Format("Enqueuing download for '{0}'...", viewItem.NativeId));
// create a new task...
var theUrl = Task.Run<string>(async () =>
{
Debug.WriteLine(string.Format("Requesting image for '{0}'...", viewItem.NativeId));
// load...
var proxy = TinyIoCContainer.Current.Resolve<IGetReportImageServiceProxy>();
var result = await proxy.GetReportImageAsync(viewItem.NativeId);
// check...
result.AssertNoErrors();
// create the new file...
var filename = GetCacheFilename(viewItem);
var cacheFolder = await this.GetCacheFolderAsync();
var cacheFile = await cacheFolder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);
using (var stream = await cacheFile.OpenStreamForWriteAsync())
stream.Write(result.ImageBytes, 0, result.ImageBytes.Length);
// get the URL...
string url = this.CalculateLocalImageUrl(viewItem);
Debug.WriteLine(string.Format("Image load for '{0}' finished.", viewItem.NativeId));
return url;
}).ContinueWith(t =>
{
// set it...
viewItem.ImageUri = t.Result;
}, TaskScheduler.FromCurrentSynchronizationContext());
}
internal bool MatchKeyword(ReportViewItem item)
{
// if we have a keyword, match it, otherwise assume it's ok...
if (!(string.IsNullOrEmpty(this.Keyword)))
return item.Title.ToLower().EndsWith(this.Keyword);
else
return true;
}
public static async Task PopulateSuggestionsAsync(string queryText, SearchSuggestionCollection results)
{
// if we don't have at least three characters to work with, do nothing...
if(queryText.Length < 3)
return;
// how many?
int maxSuggestions = 5;
// get the list...
var suggestions = await ReportItem.GetSearchSuggestionsAsync(queryText);
// sort the suggestions...
var titles = new List<string>();
foreach (var title in suggestions.Keys)
titles.Add(title);
titles.Sort();
// do we have one that we can use as a recommendation?
ReportItem recommendation = null;
foreach (var title in titles)
{
if (suggestions[title].Count == 1)
{
recommendation = suggestions[title][0];
break;
}
}
// if we have a recommendation only show three suggestions...
if (recommendation != null)
maxSuggestions -= 2;
// add the suggestions...
foreach (var title in titles)
{
results.AppendQuerySuggestion(title);
// enough?
if (results.Size == maxSuggestions)
break;
}
// add the recommendation...
if (recommendation != null)
{
// we need an image...
var viewItem = new ReportViewItem(recommendation);
var imageUri = await new ReportImageCacheManager().GetLocalImageUriAsync(viewItem);
// add the suggestion...
results.AppendSearchSeparator("Recommendation");
results.AppendResultSuggestion(recommendation.Title, recommendation.Description, recommendation.Id.ToString(),
RandomAccessStreamReference.CreateFromUri(new Uri(imageUri)), recommendation.Title);
}
}
internal async Task<string> GetLocalImageUriAsync(ReportViewItem viewItem)
{
var cacheFolder = await this.GetCacheFolderAsync();
// build a path based on the native id...
var filename = GetCacheFilename(viewItem);
StorageFile cacheFile = null;
try
{
cacheFile = await cacheFolder.GetFileAsync(filename);
}
catch (FileNotFoundException ex)
{
SinkWarning(ex);
}
// did we get one?
if (cacheFile != null)
{
Debug.WriteLine(string.Format("Cache image for '{0}' was found locally...", viewItem.NativeId));
return CalculateLocalImageUrl(viewItem);
}
else
{
Debug.WriteLine(string.Format("Cache image for '{0}' was not found locally...", viewItem.NativeId));
return null;
}
}
private string CalculateLocalImageUrl(ReportViewItem viewItem)
{
return string.Format("ms-appdata:///local/{0}/{1}.jpg", LocalCacheFolderName, viewItem.NativeId);
}
private string GetCacheFilename(ReportViewItem viewItem)
{
return viewItem.NativeId + ".jpg";
}
async void search_ResultSuggestionChosen(SearchPane sender, SearchPaneResultSuggestionChosenEventArgs args)
{
var item = await ReportItem.GetByIdAsync(int.Parse(args.Tag));
var viewItem = new ReportViewItem(item);
// show...
var frame = (Frame)Window.Current.Content;
var handler = ViewFactory.Current.GetConcreteType<IReportPageViewModel>();
frame.Navigate(handler, viewItem);
}