42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
#pragma once
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#include <winrt/Windows.Storage.Pickers.h>
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#include <winrt/Windows.Security.Cryptography.h>
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#include "NativeModules.h"
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using namespace winrt::Microsoft::ReactNative;
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using namespace winrt::Windows::Storage;
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using namespace winrt::Windows::Storage::Pickers;
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using namespace winrt::Windows::Security::Cryptography;
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namespace SheetJSWin {
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REACT_MODULE(DocumentPicker);
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struct DocumentPicker {
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REACT_INIT(Initialize);
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void Initialize(const ReactContext& reactContext) noexcept {
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context = reactContext;
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}
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REACT_METHOD(PickAndRead);
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void PickAndRead(ReactPromise<winrt::hstring> promise) noexcept {
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auto prom = promise;
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context.UIDispatcher().Post([prom = std::move(prom)]()->winrt::fire_and_forget {
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auto p = prom;
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FileOpenPicker picker;
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picker.SuggestedStartLocation(PickerLocationId::DocumentsLibrary);
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picker.FileTypeFilter().Append(L".xlsx");
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picker.FileTypeFilter().Append(L".xls");
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StorageFile file = co_await picker.PickSingleFileAsync();
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if(file == nullptr) { p.Reject("File not Found"); co_return; }
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auto buf = co_await FileIO::ReadBufferAsync(file);
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p.Resolve(CryptographicBuffer::EncodeToBase64String(buf));
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co_return;
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});
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}
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private:
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ReactContext context{nullptr};
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};
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} |