Realize pdf split/merge in native js wrapper

DesktopEditor/doctrenderer/embed/DrawingFileEmbed.cpp

@@ -166,6 +166,48 @@ JSSmart<CJSValue> CDrawingFileEmbed::FreeWasmData(JSSmart<CJSValue> typedArray)
 	return NULL;
 }
 
+JSSmart<CJSValue> CDrawingFileEmbed::SplitPages(JSSmart<CJSValue> arrPageIndexes, JSSmart<CJSValue> data)
+{
+	JSSmart<CJSArray> arrPages = arrPageIndexes->toArray();
+	CJSDataBuffer changes;
+	if (data->isTypedArray())
+		changes = data->toTypedArray()->getData();
+
+	int nCountPages = arrPages->getCount();
+	int* pPages = NULL;
+	if (0 < nCountPages)
+		pPages = new int[nCountPages];
+
+	for (int i = 0; i < nCountPages; i++)
+		pPages[i] = arrPages->get(i)->toInt32();
+
+	JSSmart<CJSValue> res = WasmMemoryToJS(m_pFile->SplitPages(pPages, nCountPages, changes.Data, (LONG)changes.Len));
+	if (pPages)
+		delete [] pPages;
+	return res;
+}
+JSSmart<CJSValue> CDrawingFileEmbed::MergePages(JSSmart<CJSValue> data, JSSmart<CJSValue> nMaxID, JSSmart<CJSValue> sPrefixForm)
+{
+	bool result = false;
+	if (m_pFile)
+	{
+		JSSmart<CJSTypedArray> dataPtr = data->toTypedArray();
+		int maxID = nMaxID->toInt32();
+		std::string prefix = sPrefixForm->toStringA();
+		CJSDataBuffer buffer = dataPtr->getData();
+		result = m_pFile->MergePages(buffer.Data, (LONG)buffer.Len, maxID, prefix);
+		if (buffer.IsExternalize)
+			buffer.Free();
+	}
+	return CJSContext::createBool(result);
+}
+JSSmart<CJSValue> CDrawingFileEmbed::UnmergePages()
+{
+	if (m_pFile)
+		return CJSContext::createBool(m_pFile->UnmergePages());
+	return CJSContext::createBool(false);
+}
+
 bool EmbedDrawingFile(JSSmart<NSJSBase::CJSContext>& context, IOfficeDrawingFile* pFile)
 {
 	CJSContext::Embed<CDrawingFileEmbed>(false);

DesktopEditor/doctrenderer/embed/DrawingFileEmbed.h

@@ -51,6 +51,10 @@ public:
 
 	JSSmart<CJSValue> FreeWasmData(JSSmart<CJSValue> typedArray);
 
+	JSSmart<CJSValue> SplitPages(JSSmart<CJSValue> arrPageIndexes, JSSmart<CJSValue> data);
+	JSSmart<CJSValue> MergePages(JSSmart<CJSValue> data, JSSmart<CJSValue> nMaxID, JSSmart<CJSValue> sPrefixForm);
+	JSSmart<CJSValue> UnmergePages();
+
 	DECLARE_EMBED_METHODS
 };
 

DesktopEditor/doctrenderer/embed/jsc/jsc_DrawingFileEmbed.mm

@@ -27,6 +27,9 @@
 -(JSValue*) ScanPage : (JSValue*)nPageIndex : (JSValue*)mode;
 -(JSValue*) GetImageBase64 : (JSValue*)rId;
 -(JSValue*) FreeWasmData : (JSValue*)typedArray;
+-(JSValue*) SplitPages : (JSValue*)arrPageIndexes : (JSValue*)data;
+-(JSValue*) MergePages : (JSValue*)data : (JSValue*)nMaxID : (JSValue*)sPrefixForm;
+-(JSValue*) UnmergePages;
 @end
 
 @interface CJSCDrawingFileEmbed : NSObject<IJSCDrawingFileEmbed, JSEmbedObjectProtocol>
@@ -61,6 +64,9 @@ FUNCTION_WRAPPER_JS_0(IsNeedCMap, IsNeedCMap)
 FUNCTION_WRAPPER_JS_2(ScanPage, ScanPage)
 FUNCTION_WRAPPER_JS_1(GetImageBase64, GetImageBase64)
 FUNCTION_WRAPPER_JS_1(FreeWasmData, FreeWasmData)
+FUNCTION_WRAPPER_JS_2(SplitPages, SplitPages)
+FUNCTION_WRAPPER_JS_3(MergePages, MergePages)
+FUNCTION_WRAPPER_JS_0(UnmergePages, UnmergePages)
 @end
 
 class CDrawingFileEmbedAdapter : public CJSEmbedObjectAdapterJSC

DesktopEditor/doctrenderer/embed/v8/v8_DrawingFileEmbed.cpp

@@ -30,6 +30,9 @@ namespace NSDrawingFileEmbed
 	FUNCTION_WRAPPER_V8_2(_ScanPage, ScanPage)
 	FUNCTION_WRAPPER_V8_1(_GetImageBase64, GetImageBase64)
 	FUNCTION_WRAPPER_V8_1(_FreeWasmData, FreeWasmData)
+	FUNCTION_WRAPPER_V8_2(_SplitPages, SplitPages)
+	FUNCTION_WRAPPER_V8_3(_MergePages, MergePages)
+	FUNCTION_WRAPPER_V8_0(_UnmergePages, UnmergePages)
 
 	v8::Handle<v8::ObjectTemplate> CreateTemplate(v8::Isolate* isolate)
 	{
@@ -59,6 +62,9 @@ namespace NSDrawingFileEmbed
 		NSV8Objects::Template_Set(result, "ScanPage",	_ScanPage);
 		NSV8Objects::Template_Set(result, "GetImageBase64",	_GetImageBase64);
 		NSV8Objects::Template_Set(result, "FreeWasmData",	_FreeWasmData);
+		NSV8Objects::Template_Set(result, "SplitPages",	_SplitPages);
+		NSV8Objects::Template_Set(result, "MergePages",	_MergePages);
+		NSV8Objects::Template_Set(result, "UnmergePages",	_UnmergePages);
 
 		return handle_scope.Escape(result);
 	}

DesktopEditor/graphics/pro/js/wasm/js/drawingfile.js

@@ -148,29 +148,9 @@ CFile.prototype["isNeedPassword"] = function()
 CFile.prototype["SplitPages"] = function(arrPageIndex, arrayBufferChanges)
 {
 	let ptr = this._SplitPages(arrPageIndex, arrayBufferChanges);
-
-	if (!ptr)
-		return null;
-
-	let lenArr = new Int32Array(Module["HEAP8"].buffer, ptr, 1);
-	if (!lenArr)
-	{
-		Module["_free"](ptr);
-		return null;
-	}
-
-	let len = lenArr[0];
-	if (len <= 4)
-	{
-		Module["_free"](ptr);
-		return null;
-	}
-	len -= 4;
-
-	let buffer = new Uint8Array(len);
-	buffer.set(new Uint8Array(Module["HEAP8"].buffer, ptr + 4, len));
-	Module["_free"](ptr);
-	return buffer;
+	let res = ptr.getMemory(true);
+	ptr.free();
+	return res;
 };
 CFile.prototype["MergePages"] = function(arrayBuffer, maxID, prefixForm)
 {

DesktopEditor/graphics/pro/js/wasm/js/drawingfile_native.js

@@ -42,6 +42,19 @@ CNativePointer.prototype.free = function()
 		g_native_drawing_file["FreeWasmData"](this.ptr);
 	this.ptr = null;
 };
+CNativePointer.prototype.getMemory = function(isCopy)
+{
+	if (!this.ptr)
+		return null;
+
+	if (!isCopy)
+		return this.ptr;
+
+	let copyArray = new Uint8Array(this.ptr.length);
+	copyArray.set(this.ptr);
+
+	return copyArray;
+};
 CNativePointer.prototype.getReader = function()
 {
 	if (!this.ptr)
@@ -94,10 +107,33 @@ CFile.prototype._getError = function()
 	return g_native_drawing_file["GetErrorCode"]();
 };
 
-CFile.prototype._addPDF = function(buffer, password)
+CFile.prototype._SplitPages = function(pages, changes)
 {
-	return g_native_drawing_file["AddPDF"]();
-}
+	let dataChanges = null;
+	if (changes) 
+		dataChanges = (undefined !== changes.byteLength) ? new Uint8Array(changes) : changes;
+	g_module_pointer.ptr = g_native_drawing_file["SplitPages"](pages, dataChanges);
+	return g_module_pointer;
+};
+
+CFile.prototype._MergePages = function(buffer, maxID, prefixForm)
+{
+	if (!buffer)
+		return false;
+
+	if (!maxID)
+		maxID = 0;
+	if (!prefixForm)
+		prefixForm = "";
+
+	let data = (undefined !== buffer.byteLength) ? new Uint8Array(buffer) : buffer;
+	return g_native_drawing_file["MergePages"](data, maxID, prefixForm);
+};
+
+CFile.prototype._UndoMergePages = function()
+{
+	return g_native_drawing_file["UnmergePages"]();
+};
 
 // FONTS
 CFile.prototype._isNeedCMap = function()

DesktopEditor/graphics/pro/js/wasm/js/drawingfile_wasm.js

@@ -39,7 +39,7 @@ CWasmPointer.prototype.free = function()
 	Module["_free"](this.ptr);
 	this.ptr = 0;
 };
-CWasmPointer.prototype.getReader = function()
+CWasmPointer.prototype.getMemory = function(isCopy)
 {
 	if (!this.ptr)
 		return null;
@@ -59,8 +59,23 @@ CWasmPointer.prototype.getReader = function()
 	}
 
 	len -= 4;
-	let buffer = new Uint8Array(Module["HEAP8"].buffer, this.ptr + 4, len);
-	return new CBinaryReader(buffer, 0, len);
+	
+	let noCopyArray = new Uint8Array(Module["HEAP8"].buffer, this.ptr + 4, len);
+	if (!isCopy)
+		return noCopyArray;
+
+	let copyArray = new Uint8Array(len);
+	copyArray.set(noCopyArray);
+
+	return copyArray;
+};
+CWasmPointer.prototype.getReader = function()
+{
+	let noCopyArray = this.getMemory(false);
+	if (!noCopyArray)
+		return null;
+	
+	return new CBinaryReader(noCopyArray, 0, len);
 };
 
 var g_module_pointer = new CWasmPointer();
@@ -139,7 +154,9 @@ CFile.prototype._SplitPages = function(memoryBuffer, arrayBufferChanges)
 	Module["_free"](pointer);
 	if (changesPtr)
 		Module["_free"](changesPtr);
-	return ptr;
+
+	g_module_pointer.ptr = ptr;
+	return g_module_pointer;
 };
 
 CFile.prototype._MergePages = function(buffer, maxID, prefixForm)