/// <summary>
/// Adds the URL scheme to the plist.
/// If the key already exists, the value is updated to the given value.
/// If the key cannot be found, it is added.
/// </summary>
/// <param name="buddy">buddy - the plist helper to use.</param>
/// <param name="key">Key - the url scheme key to look for</param>
/// <param name="value">Value - the value of the scheme.</param>
private static void AddURLScheme(PlistBuddyHelper buddy, string key, string value)
{
int index = 0;
while (buddy.EntryValue(UrlTypes, index) != null)
{
string urlName = buddy.EntryValue(UrlTypes, index, UrlBundleName);
if (key.Equals(urlName))
{
// remove the existing value
buddy.RemoveEntry(UrlTypes, index, UrlScheme);
//add the array back
buddy.AddArray(UrlTypes, index, UrlScheme);
//add the value
buddy.AddString(PlistBuddyHelper.ToEntryName(UrlTypes, index, UrlScheme, 0),
value);
return;
}
index++;
}
// not found, add new entry
buddy.AddDictionary(UrlTypes, index);
buddy.AddString(PlistBuddyHelper.ToEntryName(UrlTypes, index, UrlBundleName),
key);
//add the array
buddy.AddArray(UrlTypes, index, UrlScheme);
//add the value
buddy.AddString(PlistBuddyHelper.ToEntryName(UrlTypes, index, UrlScheme, 0),
value);
}
/// <summary>
/// Updates the new project's Info.plist file to include an entry for the Url scheme mandated
/// by the Google+ login. This means that the plist file needs to have an entry in the for
/// indicated here: <see cref="https://developers.google.com/+/mobile/ios/getting-started#step_3_add_a_url_type"/>
/// <para>This boils down to having an entry in the CFBundleURLTypes top level plist field with
/// a CFBundleURLName equal to the bundle ID of the game, and a single element array for
/// CFBundleURLSchemes also containing the bundle ID.</para>
/// <para>We make use of the apple-provided PlistBuddy utility to edit the plist file.</para>
/// </summary>
/// <param name="pathToPlist">Path to plist.</param>
private static void UpdateGeneratedInfoPlistFile(string pathToPlist)
{
PlistBuddyHelper buddy = PlistBuddyHelper.ForPlistFile(pathToPlist);
// If the top-level UrlTypes field doesn't exist, add it here.
if (buddy.EntryValue(UrlTypes) == null)
{
buddy.AddArray(UrlTypes);
}
AddURLScheme(buddy, BundleSchemeKey, GetBundleId());
AddURLScheme(buddy, ReverseClientIdSchemeKey, GetReverseClientId());
}
/// <summary>
/// Adds the URL scheme to the plist.
/// If the key already exists, the value is updated to the given value.
/// If the key cannot be found, it is added.
/// </summary>
/// <param name="buddy">buddy - the plist helper to use.</param>
/// <param name="key">Key - the url scheme key to look for</param>
/// <param name="value">Value - the value of the scheme.</param>
private static void AddURLScheme(PlistBuddyHelper buddy, string key, string value)
{
int index = 0;
while (buddy.EntryValue(UrlTypes, index) != null)
{
string urlName = buddy.EntryValue(UrlTypes, index, UrlBundleName);
if (key.Equals(urlName))
{
// remove the existing value
buddy.RemoveEntry (UrlTypes, index, UrlScheme);
//add the array back
buddy.AddArray(UrlTypes, index, UrlScheme);
//add the value
buddy.AddString (PlistBuddyHelper.ToEntryName (UrlTypes, index, UrlScheme, 0),
value);
return;
}
index++;
}
// not found, add new entry
buddy.AddDictionary(UrlTypes, index);
buddy.AddString(PlistBuddyHelper.ToEntryName(UrlTypes, index, UrlBundleName),
key);
//add the array
buddy.AddArray(UrlTypes, index, UrlScheme);
//add the value
buddy.AddString (PlistBuddyHelper.ToEntryName (UrlTypes, index, UrlScheme, 0),
value);
}
/// <summary>
/// Finds the index of the CFBundleURLTypes array where the entry for Play Games is stored. If
/// this is not present, a new entry will be appended to the end of this array.
/// </summary>
/// <returns>The index in the CFBundleURLTypes array corresponding to Play Games.</returns>
/// <param name="buddy">The helper corresponding to the plist file.</param>
private static int GamesUrlSchemeIndex(PlistBuddyHelper buddy) {
int index = 0;
while(buddy.EntryValue(UrlTypes, index) != null) {
var urlName = buddy.EntryValue(UrlTypes, index, UrlBundleName);
if (GetBundleId().Equals(urlName)) {
return index;
}
index++;
}
// The current array does not contain the Games url scheme - add a value to the end.
buddy.AddDictionary(UrlTypes, index);
buddy.AddString(PlistBuddyHelper.ToEntryName(UrlTypes, index, UrlBundleName),
GetBundleId());
return index;
}