Simplify worker code.

Author: kovacsv

dist/occt-import-js-worker.js

@@ -2,14 +2,12 @@ importScripts ('occt-import-js.js');
 
 onmessage = async function (ev)
 {
-	let occt = await occtimportjs ();
-	let result = null;
-	if (ev.data.format === 'step') {
-		result = occt.ReadStepFile (ev.data.buffer, ev.data.params);
-	} else if (ev.data.format === 'iges') {
-		result = occt.ReadIgesFile (ev.data.buffer, ev.data.params);
-	} else if (ev.data.format === 'brep') {
-		result = occt.ReadBrepFile (ev.data.buffer, ev.data.params);
-	}
+	let modulOverrides = {
+		locateFile: function (path) {
+			return path;
+		}
+	};
+	let occt = await occtimportjs (modulOverrides);
+	let result = occt.ReadFile (ev.data.format, ev.data.buffer, ev.data.params);
 	postMessage (result);
 };

dist/occt-import-js.js

@@ -145,12 +145,12 @@ static void EnumerateNodeMeshes (const NodePtr& node, const std::function<void (
     }
 }
 
-static emscripten::val ReadFile (ImporterPtr importer, const emscripten::val& content, const ImportParams& params)
+static emscripten::val ImportFile (ImporterPtr importer, const emscripten::val& buffer, const ImportParams& params)
 {
     emscripten::val resultObj (emscripten::val::object ());
 
-    const std::vector<uint8_t>& contentArr = emscripten::vecFromJSArray<std::uint8_t> (content);
-    Importer::Result importResult = importer->LoadFile (contentArr, params);
+    const std::vector<uint8_t>& bufferArr = emscripten::vecFromJSArray<std::uint8_t> (buffer);
+    Importer::Result importResult = importer->LoadFile (bufferArr, params);
     resultObj.set ("success", importResult == Importer::Result::Success);
     if (importResult != Importer::Result::Success) {
         return resultObj;
@@ -215,29 +215,46 @@ static ImportParams GetImportParams (const emscripten::val& paramsVal)
     return params;
 }
 
-emscripten::val ReadStepFile (const emscripten::val& content, const emscripten::val& params)
+emscripten::val ReadStepFile (const emscripten::val& buffer, const emscripten::val& params)
 {
     ImporterPtr importer = std::make_shared<ImporterStep> ();
     ImportParams importParams = GetImportParams (params);
-    return ReadFile (importer, content, importParams);
+    return ImportFile (importer, buffer, importParams);
 }
 
-emscripten::val ReadIgesFile (const emscripten::val& content, const emscripten::val& params)
+emscripten::val ReadIgesFile (const emscripten::val& buffer, const emscripten::val& params)
 {
     ImporterPtr importer = std::make_shared<ImporterIges> ();
     ImportParams importParams = GetImportParams (params);
-    return ReadFile (importer, content, importParams);
+    return ImportFile (importer, buffer, importParams);
 }
 
-emscripten::val ReadBrepFile (const emscripten::val& content, const emscripten::val& params)
+emscripten::val ReadBrepFile (const emscripten::val& buffer, const emscripten::val& params)
 {
     ImporterPtr importer = std::make_shared<ImporterBrep> ();
     ImportParams importParams = GetImportParams (params);
-    return ReadFile (importer, content, importParams);
+    return ImportFile (importer, buffer, importParams);
+}
+
+emscripten::val ReadFile (const std::string& format, const emscripten::val& buffer, const emscripten::val& params)
+{
+    if (format == "step") {
+        return ReadStepFile (buffer, params);
+    } else if (format == "iges") {
+        return ReadIgesFile (buffer, params);
+    } else if (format == "brep") {
+        return ReadBrepFile (buffer, params);
+    } else {
+        emscripten::val resultObj (emscripten::val::object ());
+        resultObj.set ("success", false);
+        return resultObj;
+    }
 }
 
 EMSCRIPTEN_BINDINGS (occtimportjs)
 {
+    emscripten::function<emscripten::val, const std::string&, const emscripten::val&, const emscripten::val&> ("ReadFile", &ReadFile);
+
     emscripten::function<emscripten::val, const emscripten::val&, const emscripten::val&> ("ReadStepFile", &ReadStepFile);
     emscripten::function<emscripten::val, const emscripten::val&, const emscripten::val&> ("ReadIgesFile", &ReadIgesFile);
     emscripten::function<emscripten::val, const emscripten::val&, const emscripten::val&> ("ReadBrepFile", &ReadBrepFile);

dist/occt-import-js.wasm

@@ -12,6 +12,12 @@ before (async function () {
     occt = await occtimportjs;
 });
 
+function LoadFile (format, fileUrl)
+{
+    let fileContent = fs.readFileSync (fileUrl);
+    return occt.ReadFile (format, fileContent, null);
+}
+
 function LoadStepFile (fileUrl)
 {
     let fileContent = fs.readFileSync (fileUrl);
@@ -336,3 +342,18 @@ it ('Convert to other units', function () {
 });
 
 });
+
+describe ('General Import', function () {
+
+it ('Format string test', function () {
+    let stepResult = LoadFile ('step', './test/testfiles/simple-basic-cube/cube.stp');
+    assert (stepResult.success);
+    let igesResult = LoadFile ('iges', './test/testfiles/cube-10x10mm/Cube 10x10.igs');
+    assert (igesResult.success);
+    let brepResult = LoadFile ('brep', './test/testfiles/cax-if-brep/as1_pe_203.brep');
+    assert (brepResult.success);
+    let otherResult = LoadFile ('other', './test/testfiles/simple-basic-cube/cube.stp');
+    assert (!otherResult.success);
+});
+
+});

occt-import-js/src/js-interface.cpp

@@ -2,8 +2,8 @@ pushd %~dp0\..
 
 call git clone https://github.com/emscripten-core/emsdk.git
 call cd emsdk
-call emsdk install 3.1.35
-call emsdk activate 3.1.35
+call emsdk install 3.1.58
+call emsdk activate 3.1.58
 call emsdk install mingw-7.1.0-64bit
 call emsdk activate mingw-7.1.0-64bit
 call cd ..