91 lines
3.4 KiB
C#
91 lines
3.4 KiB
C#
using System;
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using System.IO;
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using System.Web;
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using System.Web.UI;
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using umbraco;
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using Umbraco.Core;
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using Umbraco.Core.IO;
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using Umbraco.Core.Logging;
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namespace Umbraco.Web.Macros
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{
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class UserControlMacroEngine
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{
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public MacroContent Execute(MacroModel model)
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{
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var filename = model.TypeName;
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// ensure the file exists
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var path = IOHelper.FindFile(filename);
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if (File.Exists(IOHelper.MapPath(path)) == false)
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throw new UmbracoException($"Failed to load control, file {filename} does not exist.");
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// load the control
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var control = (UserControl)new UserControl().LoadControl(path);
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control.ID = string.IsNullOrEmpty(model.MacroControlIdentifier)
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? GetControlUniqueId(filename)
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: model.MacroControlIdentifier;
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// initialize the control
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// note: we are not setting the 'CurrentNode' property on the control anymore,
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// as that was an INode which is gone in v8. Use UmbracoContext to access the
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// current content.
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Current.Logger.Info<UserControlMacroEngine>($"Loaded control \"{filename}\" with ID \"{control.ID}\".");
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UpdateControlProperties(control, model);
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return new MacroContent { Control = control };
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}
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private static string GetControlUniqueId(string filename)
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{
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const string key = "MacroControlUniqueId";
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var x = 0;
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if (HttpContext.Current != null)
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{
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if (HttpContext.Current.Items.Contains(key))
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x = (int)HttpContext.Current.Items[key];
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x += 1;
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HttpContext.Current.Items[key] = x;
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}
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return $"{Path.GetFileNameWithoutExtension(filename)}_{x}";
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}
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// set the control properties according to the model properties ie parameters
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internal static void UpdateControlProperties(Control control, MacroModel model)
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{
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var type = control.GetType();
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foreach (var modelProperty in model.Properties)
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{
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var controlProperty = type.GetProperty(modelProperty.Key);
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if (controlProperty == null)
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{
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Current.Logger.Warn<UserControlMacroEngine>($"Control property \"{modelProperty.Key}\" doesn't exist or isn't accessible, skip.");
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continue;
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}
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var tryConvert = modelProperty.Value.TryConvertTo(controlProperty.PropertyType);
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if (tryConvert.Success)
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{
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try
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{
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controlProperty.SetValue(control, tryConvert.Result, null);
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Current.Logger.Debug<UserControlMacroEngine>($"Set property \"{modelProperty.Key}\" value \"{modelProperty.Value}\".");
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}
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catch (Exception e)
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{
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Current.Logger.Warn<UserControlMacroEngine>(e, $"Failed to set property \"{modelProperty.Key}\" value \"{modelProperty.Value}\".");
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}
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}
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else
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{
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Current.Logger.Warn<UserControlMacroEngine>($"Failed to set property \"{modelProperty.Key}\" value \"{modelProperty.Value}\".");
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}
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}
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}
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}
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}
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