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Realize pdf split/merge in native js wrapper

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This commit is contained in:
Oleg Korshul
2025-05-15 16:04:29 +03:00
parent d70c26f5ce
commit e10aa90618
7 changed files with 121 additions and 30 deletions
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42
DesktopEditor/doctrenderer/embed/DrawingFileEmbed.cpp
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@ -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);

4
DesktopEditor/doctrenderer/embed/DrawingFileEmbed.h
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@ -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
};

6
DesktopEditor/doctrenderer/embed/jsc/jsc_DrawingFileEmbed.mm
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@ -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

6
DesktopEditor/doctrenderer/embed/v8/v8_DrawingFileEmbed.cpp
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@ -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);
}