void OnDownloadImageCompletedForDownloadPage(object sender, OpenReadCompletedEventArgs e)
{
DownloadImageState state = (DownloadImageState)e.UserState;
if (!_downloadPageProgress.ContainsKey(state.Context))
{
return;
}
_downloadPageProgress[state.Context]--;
if (e.Error == null && e.Result != null)
{
try
{
Storage.SaveStreamToFile(e.Result, (string)state.CachePath);
if (_downloadPageProgress[state.Context] == 0)
{
Deployment.Current.Dispatcher.BeginInvoke(new GetPageAsyncCompletedTrigger(TriggerGetPageAsyncCompleted), state.Page);
}
}
catch
{
_downloadPageProgress.Remove(state.Context);
PageModel pageModel = new PageModel();
pageModel.Images = new EntitySet<ImageModel>();
Deployment.Current.Dispatcher.BeginInvoke(new GetPageAsyncCompletedTrigger(TriggerGetPageAsyncCompleted), pageModel);
}
}
else
{
_downloadPageProgress.Remove(state.Context);
PageModel pageModel = new PageModel();
pageModel.Images = new EntitySet<ImageModel>();
Deployment.Current.Dispatcher.BeginInvoke(new GetPageAsyncCompletedTrigger(TriggerGetPageAsyncCompleted), pageModel);
}
}
private void TriggerGetPageAsyncCompleted(PageModel pageModel)
{
if (Events != null)
{
Events.InvokeGetPageAsyncCompleted(this, pageModel);
}
}
public void LoadPageAsync(PageModel page, List<string> cachePaths, bool forceRefresh)
{
_currentlyViewingPage = page.Page;
try
{
_downloadPageContext++;
uint numDownloadPending = 0;
IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForApplication();
for (int i = 0; i < cachePaths.Count; i++)
{
bool found = false;
string cachePath = cachePaths[i];
found = store.FileExists(cachePath);
if (forceRefresh || !found)
{
if (forceRefresh)
{
store.DeleteFile(cachePath);
}
WebClient webClient = new WebClient();
webClient.OpenReadCompleted += new OpenReadCompletedEventHandler(OnDownloadImageCompletedForDownloadPage);
webClient.OpenReadAsync(new Uri(page.Images[i].Url), new DownloadImageState(cachePath, page, _downloadPageContext));
numDownloadPending++;
}
}
if (numDownloadPending > 0)
{
_downloadPageProgress.Add(_downloadPageContext, numDownloadPending);
}
else
{
TriggerGetPageAsyncCompleted(page);
}
}
catch
{
PageModel pageModel = new PageModel();
pageModel.Images = new EntitySet<ImageModel>();
TriggerGetPageAsyncCompleted(pageModel);
}
}
public DownloadImageState(string cachePath, PageModel page, uint context)
{
this.CachePath = cachePath;
this.Page = page;
this.Context = context;
}
public void InvokeGetPageAsyncCompleted(AppData appData, PageModel pageModel)
{
GetPageAsyncCompleted.Invoke(appData, pageModel);
}
void OnGetPageAsyncCompleted(object sender, PageModel pageModel)
{
if (pageModel != null && pageModel.Images.Count >= 1)
{
if (App.AppData.Manga != null)
{
MangaModel manga = App.AppData.Manga;
string content = string.Empty;
if (pageModel.Images.Count == 1)
{
string cachePath = GetCachePath(manga, pageModel, 0);
content = "<html><head><meta name=\"Viewport\" content=\"width=800; height=800; user-scaleable=yes;\"/></head><body><img src=\"" + cachePath + "\"/></body></html>";
}
else
{
StringBuilder bodyBuilder = new StringBuilder();
StringBuilder styleBuilder = new StringBuilder();
for (int i = 0; i < pageModel.Images.Count; i++)
{
ImageModel imageModel = pageModel.Images[i];
styleBuilder.Append("#p" + i + "{position:absolute;z-index:" + imageModel.ZIndex + ";width:" + imageModel.Width + "px;height:" + imageModel.Height + "px;top:" + imageModel.Top + "px;left:" + imageModel.Left + "px}\n");
bodyBuilder.Append("<div id=\"p" + i + "\"><img src=\"" + GetCachePath(manga, pageModel, i) + "\"/></div>");
}
content = "<html><head><meta name=\"Viewport\" content=\"width=800; height=800; user-scaleable=yes;\"/><style type=\"text/css\">" + styleBuilder.ToString() + "</style></head><body><div>" + bodyBuilder.ToString() + "</div></body></html>";
}
IsolatedStorageFileStream stream = null;
try
{
byte[] buffer = Encoding.UTF8.GetBytes(content);
IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForApplication();
stream = store.CreateFile("index.html");
stream.Write(buffer, 0, buffer.Length);
}
catch (Exception)
{
MessageBox.Show("Couldn't show content");
}
finally
{
if (stream != null)
{
stream.Close();
}
}
_currentViewingPage = pageModel.Page - 1;
bool oldNextAllowed = NextAllowed;
NextAllowed = (_currentViewingPage < manga.Pages.Count - 1);
if (oldNextAllowed != NextAllowed)
{
NotifyPropertyChanged("NextAllowed");
}
bool oldPreviousAllowed = PreviousAllowed;
PreviousAllowed = (_currentViewingPage > 0);
if (oldPreviousAllowed != PreviousAllowed)
{
NotifyPropertyChanged("PreviousAllowed");
}
}
else
{
// Couldn't display content
}
DisplayContent = "index.html";
NotifyPropertyChanged("DisplayContent");
}
else
{
MessageBox.Show("Failed to retrieve images. Please try refresh again.");
}
PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Enabled;
SetLoadingStatus(false);
}
private string GetCachePath(MangaModel mangaModel, PageModel pageModel, int count)
{
return mangaModel.SeriesId + "_" + mangaModel.MangaId + "_" + pageModel.Page + "_" + count + ".img";
}