/// <summary>
/// Get the temporary HTML Link file pathname that should be created for the specified URL. Keeps trying until
/// an non-existing file pathname is generated.
/// </summary>
/// <param name="targetFolder">The target folder where to save the link html file.</param>
/// <param name="uri">An URL string.</param>
/// <returns>The pathname of the temporary HTML Link file.</returns>
private static string GetLinkHTMLFileLocation(string targetFolder, NamedUrl uri)
{
for (int i = 0; i < int.MaxValue; i++)
{
string indexPart = i == 0 ? string.Empty : " " + i.ToString(CultureInfo.InvariantCulture);
string linkHTMLFile = Path.Combine(
targetFolder,
string.Format(CultureInfo.InvariantCulture, Properties.Resources.StringLinkFileName, uri.Name, indexPart));
// Return only if the file does not already exist
if (!File.Exists(linkHTMLFile))
{
return(linkHTMLFile);
}
}
return(string.Empty);
}
/// <summary>
/// Tries to extract the URL send to the program as text or URL file, through the command line or
/// the Clipboard.
/// </summary>
/// <returns>The URL string, or an empty string if no valid URL in sent to the program.</returns>
public static ReadOnlyCollection <NamedUrl> GetUrls()
{
List <NamedUrl> urls = new List <NamedUrl>();
// First try: if we have at least one command line argument, maybe they are URL or WEBSITE files.
string[] commandLineArgs = Environment.GetCommandLineArgs();
if (commandLineArgs.Length >= 2)
{
for (int i = 1; i < commandLineArgs.Length; i++)
{
string argument = commandLineArgs[i];
if (!argument[0].Equals('/'))
{
NamedUrl url = UrlGetter.GetUrlFromUrlFile(argument);
if (url != null)
{
urls.Add(url);
}
}
}
if (urls.Count > 0)
{
return(urls.AsReadOnly());
}
}
// Second try: determine whether the Clipboard contains one or more URL as text line(s).
if (Clipboard.ContainsText())
{
// Retrieve the text data from the Clipboard in Text or UnicodeText format.
string clipText = Clipboard.GetText();
// Split in lines
string[] potentialUrls = clipText.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.RemoveEmptyEntries);
foreach (string potentialUrl in potentialUrls)
{
// Add the named url only if it is valid
NamedUrl url = new NamedUrl(potentialUrl, string.Empty);
if (!string.IsNullOrEmpty(url.Name))
{
urls.Add(url);
}
}
return(urls.AsReadOnly());
}
// Third try: determine whether the Clipboard contains one or more URLs as a URL or WEBSITE files
if (Clipboard.ContainsFileDropList())
{
// Retrieve the file names from the Clipboard.
StringCollection files = Clipboard.GetFileDropList();
if ((files != null) && (files.Count > 0))
{
foreach (string file in files)
{
urls.Add(UrlGetter.GetUrlFromUrlFile(file));
}
return(urls.AsReadOnly());
}
}
return(null);
}