/// <summary>
/// Installs a theme from a file, validating the archive in the process.
/// Will throw a lot if the archive is invalid.
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
public static async Task InstallFromFileAsync(StorageFile file)
{
var themesDirectory = await ApplicationData.Current.LocalFolder.CreateFolderAsync("Themes", CreationCollisionOption.OpenIfExists);
// open the archive
using (var fileStream = await file.OpenReadAsync())
using (var archive = await Task.Run(() => new ZipArchive(fileStream.AsStreamForRead(), ZipArchiveMode.Read, true)))
{
// ensure it has a theme definition and load it
Theme theme = null;
var themeDefinitionFile = archive.GetEntry("theme.json");
if (themeDefinitionFile == null)
{
throw new InvalidOperationException("This file does not appear to be a Unicord theme, missing theme.json!");
}
using (var reader = new StreamReader(themeDefinitionFile.Open()))
theme = JsonConvert.DeserializeObject <Theme>(await reader.ReadToEndAsync());
if (await themesDirectory.TryGetItemAsync(theme.NormalisedName) is StorageFolder directory)
{
if (await UIUtilities.ShowYesNoDialogAsync("Theme already installed!", "This theme is already installed, do you want to overwrite it?"))
{
await directory.DeleteAsync();
}
else
{
return;
}
}
foreach (var check in theme.ContractChecks)
{
if (!ApiInformation.IsApiContractPresent(check.Key, check.Value))
{
throw new InvalidOperationException(
check.Key == "Windows.Foundation.UniversalApiContract" ?
"The version of Windows you're running is not supported by this theme. Sorry!" :
"A pre-install check failed! This probably means your device or the version of Windows you're running is not supported by this theme. Sorry!");
}
}
// if the theme specifies a logo
if (theme.DisplayLogo != null)
{
await LoadDisplayLogo(archive, theme);
}
var dialog = new InstallThemeDialog(theme);
if (await dialog.ShowAsync() == ContentDialogResult.Primary)
{
var themeRoot = await themesDirectory.CreateFolderAsync(theme.NormalisedName);
await Task.Run(() => archive.ExtractToDirectory(themeRoot.Path, true));
}
}
}
/// <summary>
/// Installs a theme from a file, validating the archive in the process.
/// Will throw a lot if the archive is invalid.
/// </summary>
/// <param name="file"></param>
/// <returns></returns>
public static async Task <Theme> InstallFromArchiveAsync(StorageFile file)
{
var themesDirectory = await ApplicationData.Current.LocalFolder.CreateFolderAsync(THEME_FOLDER_NAME, CreationCollisionOption.OpenIfExists);
var strings = ResourceLoader.GetForViewIndependentUse("ThemesSettingsPage");
// open the archive
using (var fileStream = await file.OpenReadAsync())
using (var archive = await Task.Run(() => new ZipArchive(fileStream.AsStreamForRead(), ZipArchiveMode.Read, true)))
{
// ensure it has a theme definition and load it
var theme = await LoadArchiveThemeDefinitionAsync(archive);
if (await themesDirectory.TryGetItemAsync(theme.NormalisedName) is StorageFolder directory)
{
if (await UIUtilities.ShowYesNoDialogAsync(strings.GetString("ThemeAlreadyInstalledTitle"), strings.GetString("ThemeAlreadyInstalledMessage")))
{
await directory.DeleteAsync();
}
else
{
return(null);
}
}
// if the theme specifies a logo
if (theme.DisplayLogo != null)
{
await LoadDisplayLogoAsync(archive, theme);
}
var dialog = new InstallThemeDialog(theme);
if (await dialog.ShowAsync() == ContentDialogResult.Primary)
{
await ValidateAndLoadArchiveAsync(archive, theme, null);
var themeRoot = await themesDirectory.CreateFolderAsync(theme.NormalisedName);
await Task.Run(() => archive.ExtractToDirectory(themeRoot.Path));
Analytics.TrackEvent("ThemeInstalled", new Dictionary <string, string>()
{
["Theme"] = JsonConvert.SerializeObject(theme.Name)
});
return(theme);
}
}
return(null);
}