/// <summary>
/// Add PowerPoint presentations to the conversion queue
/// </summary>
/// <param name="files">Path to files to be added</param>
/// <returns></returns>
private async Task AddFilesAsync(string[] files)
{
if (firstAdd) // remove "drag & drop" placeholder
{
listboxFiles.Items.Clear();
firstAdd = false;
}
// add presentations
foreach (string s in files)
{
OfficeFileInfo file = null;
await Task.Run(() => {
try {
if (s.Contains(".ppt"))
{
file = new PptInfo(s);
}
else if (s.Contains(".doc"))
{
file = new DocInfo(s);
}
}
catch (PathTooLongException ex) {
ex.Data.Add("Path", s);
throw;
}
catch (UnauthorizedAccessException ex) {
ex.Data.Add("Path", s);
throw;
}
});
if (file != null)
{
listboxFiles.Items.Add(file);
}
}
// create path to default output folder
if (listboxFiles.Items.Count > 0) // were files added?
// if not use default
{
string path = Path.GetDirectoryName((listboxFiles.Items[0] as OfficeFileInfo).Path);
string dest = Path.Combine(new[] { path, "PDF-Conversions" });
txtDestDir.Text = dest;
// show listbox file count
lblProgress.Content = string.Format("{0} documents(s).", listboxFiles.Items.Count);
}
}
/// <summary>
/// Converts ppts to PDF documents asynchronously
/// </summary>
/// <param name="ppApp">The PowerPoint application</param>
/// <param name="info">A PptInfo object of the file to be converted to pdf</param>
/// <param name="newPath">Full path of the converted file</param>
private Task ppConvertAsync(PP.Application ppApp, PptInfo info, string destDir)
{
return(Task.Run(() => {
// open presentation in PP in the bg
PP.Presentation pres = ppApp.Presentations.Open(info.Path, WithWindow: Microsoft.Office.Core.MsoTriState.msoFalse);
// build path for converted file
string newPath = Path.Combine(new[] { destDir, Path.ChangeExtension(Path.GetFileName(info.Path), "pdf") });
// convert to pdf
pres.SaveAs(newPath, PP.PpSaveAsFileType.ppSaveAsPDF);
pres.Close();
Util.ReleaseComObject(pres);
}));
}