public async Task <ChangeWallpaperResult> ChangeWallpaperAsync(IProgress <string> progress, CancellationToken token)
{
if (Interlocked.Exchange(ref isRunning, 1) == 1)
{
Logging.LogMessageToFile("Wallpaper is already in the changing process", 0);
return(ChangeWallpaperResult.Failed());
}
Logging.LogMessageToFile("Changing wallpaper.", 0);
progress.Report("Finding New Wallpaper");
bool success = false;
for (int tryNumber = 0; tryNumber < 50 && !success && !token.IsCancellationRequested; tryNumber++)
{
try
{
var result = await ChangeWallpaperImpl(progress);
if (result.Success)
{
return(result);
}
}
catch (Exception ex)
{
Logging.LogMessageToFile("Unexpected exception: " + ex.Message, 2);
}
await Task.Delay(TimeSpan.FromSeconds(1.5), token);
}
isRunning = 0;
return(ChangeWallpaperResult.Failed());
}
private async Task <ChangeWallpaperResult> ChangeWallpaperImpl(IProgress <string> progress)
{
int wallpaperGrabType = Properties.Settings.Default.wallpaperGrabType;
string searchUrl = SearchUrlProvider.GetSearchUrl(wallpaperGrabType, progress);
var imageInfo = await ImageInfoProvider.GetImageInfoAsync(searchUrl, wallpaperGrabType, progress);
if (imageInfo == null || string.IsNullOrEmpty(imageInfo.Url))
{
return(ChangeWallpaperResult.Failed());
}
if (Database.IsBlackListed(imageInfo.Url))
{
progress.Report("Wallpaper is blacklisted.");
Logging.LogMessageToFile("The selected wallpaper has been blacklisted, searching again.", 0);
return(ChangeWallpaperResult.Failed());
}
if (Properties.Settings.Default.suppressDuplicates == true &&
HistoryList.Contains(imageInfo.ThreadId))
{
progress.Report("Wallpaper already used in this session.");
Logging.LogMessageToFile("The selected wallpaper has already been used in this session, searching again.", 0);
return(ChangeWallpaperResult.Failed());
}
return(await SetWallpaperAsync(imageInfo, progress));
}
public async Task <ChangeWallpaperResult> SetWallpaperAsync(ImageInfo imageInfo, IProgress <string> progress)
{
var wallpaperFilePath = await ImageLoader.TryLoadImageAsync(imageInfo, progress);
if (string.IsNullOrEmpty(wallpaperFilePath))
{
return(ChangeWallpaperResult.Failed());
}
await WallpaperSetter.SetWallpaperAsync(wallpaperFilePath, progress);
HistoryList.Add(imageInfo.ThreadId);
Database.AddWallpaperToHistory(imageInfo.Url, imageInfo.Title, imageInfo.ThreadId);
ThumbnailCacheBuilder.BuildThumbnailCache();
if (Properties.Settings.Default.autoSave == true)
{
Savewallpaper.SaveWallpaper(Properties.Settings.Default.currentWallpaperName);
}
CurrentWallpaperHolder.SetCurrentWallpaper(imageInfo, wallpaperFilePath);
return(new ChangeWallpaperResult(true, imageInfo.Title, imageInfo.ThreadId));
}