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Resolve Image not loading issue while Metafile image parsed. #6

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merged 5 commits into from
Mar 14, 2023
Merged

Resolve Image not loading issue while Metafile image parsed. #6

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4808f8d
Resolve Image not loading issue while Metafile image parsed.
Thamizhselvanv Mar 1, 2023
d83bc59
Merge branch 'master' into EJ2-70010-Metafile-image
Thamizhselvanv Mar 1, 2023
1b22a1f
Updated working branch.
Thamizhselvanv Mar 1, 2023
1d3335a
Merge branch 'EJ2-70010-Metafile-image' of https://github.com/Syncfus…
Thamizhselvanv Mar 1, 2023
7dc3350
Hooked MetafileImageParsed event for SystemClipboard API also.
Thamizhselvanv Mar 14, 2023
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40 changes: 39 additions & 1 deletion src/ej2-documenteditor-server/Controllers/DocumentEditorController.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@
using WDocument = Syncfusion.DocIO.DLS.WordDocument;
using WFormatType = Syncfusion.DocIO.FormatType;
using Syncfusion.EJ2.SpellChecker;
using EJ2DocumentEditorServer;

namespace EJ2DocumentEditorServer.Controllers
{
Expand Down Expand Up @@ -44,12 +43,47 @@ public string Import(IFormCollection data)
file.CopyTo(stream);
stream.Position = 0;

//Hooks MetafileImageParsed event.
WordDocument.MetafileImageParsed += OnMetafileImageParsed;
WordDocument document = WordDocument.Load(stream, GetFormatType(type.ToLower()));
//Unhooks MetafileImageParsed event.
WordDocument.MetafileImageParsed -= OnMetafileImageParsed;

string json = Newtonsoft.Json.JsonConvert.SerializeObject(document);
document.Dispose();
return json;
}

//Converts Metafile to raster image.
private static void OnMetafileImageParsed(object sender, MetafileImageParsedEventArgs args)
{
//You can write your own method definition for converting metafile to raster image using any third-party image converter.
args.ImageStream = ConvertMetafileToRasterImage(args.MetafileStream);
}

private static Stream ConvertMetafileToRasterImage(Stream ImageStream)
{
//Here we are loading a default raster image as fallback.
Stream imgStream = GetManifestResourceStream("ImageNotFound.jpg");
return imgStream;
//To do : Write your own logic for converting metafile to raster image using any third-party image converter(Syncfusion doesn't provide any image converter).
}

private static Stream GetManifestResourceStream(string fileName)
{
System.Reflection.Assembly execAssembly = typeof(WDocument).Assembly;
string[] resourceNames = execAssembly.GetManifestResourceNames();
foreach (string resourceName in resourceNames)
{
if (resourceName.EndsWith("." + fileName))
{
fileName = resourceName;
break;
}
}
return execAssembly.GetManifestResourceStream(fileName);
}

[AcceptVerbs("Post")]
[HttpPost]
[EnableCors("AllowAllOrigins")]
Expand Down Expand Up @@ -118,7 +152,11 @@ public string SystemClipboard([FromBody]CustomParameter param)
{
try
{
//Hooks MetafileImageParsed event.
WordDocument.MetafileImageParsed += OnMetafileImageParsed;
WordDocument document = WordDocument.LoadString(param.content, GetFormatType(param.type.ToLower()));
//Unhooks MetafileImageParsed event.
WordDocument.MetafileImageParsed -= OnMetafileImageParsed;
string json = Newtonsoft.Json.JsonConvert.SerializeObject(document);
document.Dispose();
return json;
Expand Down