/// <summary>
/// 导出当前主题到数据流
/// 包括以下文件
/// theme.json 主题信息
/// App_Data\areas下的文件
/// 不包括以下文件
/// App_Data\static下的文件
/// App_Data\templates下的文件
/// 这些文件可以手动添加到包里面
/// </summary>
/// <param name="info">主题信息</param>
/// <param name="stream">数据流</param>
public virtual void ExportThemeToStream(VisualThemeInfo info, Stream stream)
{
var fileStorage = Application.Ioc.Resolve <IFileStorage>();
var areasDir = fileStorage.GetStorageDirectory("areas");
using (var archive = new ZipArchive(stream, ZipArchiveMode.Create)) {
// 添加主题信息
var infoEntry = archive.CreateEntry(ThemeInforFilename);
using (var writer = new StreamWriter(infoEntry.Open())) {
writer.Write(JsonConvert.SerializeObject(info));
}
// 添加areas下的文件
foreach (var widgetsFile in areasDir.EnumerateFiles())
{
var widgetsEntry = archive.CreateEntry("areas/" + widgetsFile.Filename);
using (var writer = new StreamWriter(widgetsEntry.Open())) {
writer.Write(widgetsFile.ReadAllText());
}
}
// 添加预览图
if (!string.IsNullOrEmpty(info.PreviewImageBase64))
{
var previewEntry = archive.CreateEntry(PreviewFilename);
using (var entryStream = previewEntry.Open()) {
var previewImageBytes = Convert.FromBase64String(info.PreviewImageBase64);
entryStream.Write(previewImageBytes, 0, previewImageBytes.Length);
}
}
}
}
/// <summary>
/// 备份当前主题
/// </summary>
public virtual void BackupUsingTheme()
{
// 清理旧的备份文件
var fileStorage = Application.Ioc.Resolve <IFileStorage>();
var backupThemeDir = fileStorage.GetStorageDirectory(BackupThemeDirectoryName);
var files = backupThemeDir.EnumerateFiles().OrderByDescending(f => f.Filename).ToList();
foreach (var file in files.Skip(KeepBackups))
{
file.Delete();
}
// 生成主题信息
var timeString = DateTime.UtcNow.ToClientTime().ToString("yyyyMMdd_HHmmss");
var info = new VisualThemeInfo();
info.Name = $"AutoBackup {timeString}";
info.Author = "System";
info.Version = "1.0";
// 生成备份文件
var backupFileName = $"{timeString}.zip";
var backupFile = fileStorage.GetStorageFile(BackupThemeDirectoryName, backupFileName);
using (var stream = backupFile.OpenWrite()) {
ExportThemeToStream(info, stream);
}
}
/// <summary>
/// 创建主题
/// 根据当前使用的主题创建
/// </summary>
/// <param name="info">主题信息</param>
public virtual void CreateTheme(VisualThemeInfo info)
{
var filenameWithoutExtension = Path.GetFileNameWithoutExtension(info.Filename);
var result = new List <VisualThemeInfo>();
var fileStorage = Application.Ioc.Resolve <IFileStorage>();
int index = 0;
var saveFilename = $"{filenameWithoutExtension}.zip";
IFileEntry file = fileStorage.GetStorageFile(ThemeDirectoryName, saveFilename);
while (file.Exists)
{
saveFilename = $"{filenameWithoutExtension}({++index}).zip";
file = fileStorage.GetStorageFile(ThemeDirectoryName, saveFilename);
}
using (var fileStream = file.OpenWrite()) {
ExportThemeToStream(info, fileStream);
}
}
/// <summary>
/// 导出当前主题到数据流
/// 包括以下文件
/// theme.json 主题信息
/// App_Data\areas下的文件
/// 不包括以下文件
/// App_Data\static下的文件
/// App_Data\templates下的文件
/// 这些文件可以手动添加到包里面
/// </summary>
/// <param name="info">主题信息</param>
/// <param name="stream">数据流</param>
protected virtual void ExportThemeToStream(VisualThemeInfo info, Stream stream)
{
var fileStorage = Application.Ioc.Resolve <IFileStorage>();
var areasDir = fileStorage.GetStorageDirectory("areas");
using (var archive = new ZipArchive(stream, ZipArchiveMode.Create)) {
// 添加主题信息
var infoEntry = archive.CreateEntry("theme.json");
using (var writer = new StreamWriter(infoEntry.Open())) {
writer.Write(JsonConvert.SerializeObject(info));
}
// 添加areas下的文件
foreach (var widgetsFile in areasDir.EnumerateFiles())
{
var widgetsEntry = archive.CreateEntry("areas/" + widgetsFile.Filename);
using (var writer = new StreamWriter(widgetsEntry.Open())) {
writer.Write(widgetsFile.ReadAllText());
}
}
}
}
/// <summary>
/// 提交表单
/// </summary>
/// <returns></returns>
protected override object OnSubmit()
{
var themeInfo = new VisualThemeInfo();
themeInfo.Name = ThemeName;
themeInfo.Description = ThemeDescription;
themeInfo.Author = ThemeAuthor;
themeInfo.Version = ThemeVersion;
themeInfo.Filename = ThemeFilename;
var previewStream = ThemePreviewImage?.OpenReadStream();
if (previewStream != null)
{
using (var image = Image.FromStream(previewStream))
using (var memoryStream = new MemoryStream()) {
image.Save(memoryStream, ImageFormat.Png);
themeInfo.PreviewImageBase64 = Convert.ToBase64String(memoryStream.ToArray());
}
}
var themeManager = Application.Ioc.Resolve <VisualThemeManager>();
themeManager.CreateTheme(themeInfo);
return(this.SaveSuccessAndRefreshModal());
}
