/// <summary>
/// 显示可升级插件
/// </summary>
private void ShowUpdatablePlugins()
{
if (_installedPlugins == null) return;
if (_updateInfos == null) return;
var items = new List<PluginModel>();
foreach (var plugin in _installedPlugins)
{
//判断已安装的插件是否可以更新
var info =_updateInfos.FirstOrDefault(x =>
x.Name == plugin.PluginInfo.Name
&& new Version(plugin.PluginInfo.Version) < x.Version.Version);
if (info == null) continue;
var canUpdate = _host.App.AppVersion >= info.Version.RequiredVersion;
info.CanUpdate = canUpdate;
var item = new PluginModel(info.Name);
item.Author = info.Author;
item.InstalledVersion = plugin.PluginInfo.Version;
item.AvailableVersion = info.Version.Version.ToString();
item.CanUpdate = info.CanUpdate.ToString();
item.Tag = info;
items.Add(item);
}
_gridViewUpdatable.DataStore = items;
}
/// <summary>
/// 下载xml文件
/// </summary>
private void DownloadUpdateXml()
{
var tip = new PluginModel("Downloading update xml...");
_gridViewAvailable.DataStore = new List<PluginModel> { tip };
var client = new WebClient();
client.DownloadFileCompleted += client_DownloadFileCompleted;
client.DownloadFileAsync(new Uri(_updateXmlUrl), _updateXmlPath);
}
/// <summary>
/// 显示可用插件
/// </summary>
private void ShowAvailablePlugins()
{
if (_installedPlugins == null) return;
if (!File.Exists(_updateXmlPath)) return;
var items = new List<PluginModel>();
_updateInfos = ReadUpdateXml();
if (_updateInfos != null)
{
foreach (var info in _updateInfos)
{
//在列表中排除已安装的插件
if (_installedPlugins.FirstOrDefault(x => x.PluginInfo.Name == info.Name) != null)
continue;
var canInstall = _host.App.AppVersion >= info.Version.RequiredVersion;
info.CanUpdate = canInstall;
var item = new PluginModel(info.Name);
item.Author = info.Author;
item.AvailableVersion = info.Version.Version.ToString();
item.RequiredVersion = info.Version.RequiredVersion.ToString();
item.CanInstall = info.CanUpdate.ToString();
item.Tag = info;
items.Add(item);
}
}
_gridViewAvailable.DataStore = items;
}
private void client_DownloadFileCompleted(object sender, System.ComponentModel.AsyncCompletedEventArgs e)
{
if (e.Error != null)
{
_buttonInstall.Enabled = false;
var tip = new PluginModel("Can't download update xml");
_gridViewAvailable.DataStore = new List<PluginModel> { tip };
}
else
{
_buttonInstall.Enabled = true;
ShowAvailablePlugins();
ShowUpdatablePlugins();
}
}