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Add Emscripten support to data handler

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This commit is contained in:
Djuri Baars 2024-05-09 15:43:44 +02:00
parent e0283d98ca
commit d4a05e2f36
1 changed files with 47 additions and 3 deletions
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48
lib/btclock/data_handler.cpp
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@ -1,4 +1,8 @@
#include "data_handler.hpp" #include "data_handler.hpp"
#ifdef __EMSCRIPTEN__
#include <emscripten.h>
#include <emscripten/bind.h>
#endif
std::array<std::string, NUM_SCREENS> parsePriceData(std::uint32_t price, char currencySymbol, bool useSuffixFormat) std::array<std::string, NUM_SCREENS> parsePriceData(std::uint32_t price, char currencySymbol, bool useSuffixFormat)
{ {
@ -37,7 +41,7 @@ std::array<std::string, NUM_SCREENS> parseSatsPerCurrency(std::uint32_t price, c
std::array<std::string, NUM_SCREENS> ret; std::array<std::string, NUM_SCREENS> ret;
std::string priceString = std::to_string(int(round(1 / float(price) * 10e7))); std::string priceString = std::to_string(int(round(1 / float(price) * 10e7)));
std::uint32_t firstIndex = 0; std::uint32_t firstIndex = 0;
uint insertSatSymbol = NUM_SCREENS - priceString.length() - 1; std::uint8_t insertSatSymbol = NUM_SCREENS - priceString.length() - 1;
if (priceString.length() < (NUM_SCREENS)) if (priceString.length() < (NUM_SCREENS))
{ {
@ -99,7 +103,7 @@ std::array<std::string, NUM_SCREENS> parseBlockFees(std::uint16_t blockFees) {
firstIndex = 1; firstIndex = 1;
} }
for (uint i = firstIndex; i < NUM_SCREENS-1; i++) for (std::uint8_t i = firstIndex; i < NUM_SCREENS-1; i++)
{ {
ret[i] = blockFeesString[i]; ret[i] = blockFeesString[i];
} }
@ -206,3 +210,43 @@ std::array<std::string, NUM_SCREENS> parseMarketCap(std::uint32_t blockHeight, s
return ret; return ret;
} }
#ifdef __EMSCRIPTEN__
emscripten::val arrayToStringArray(const std::array<std::string, NUM_SCREENS>& arr) {
emscripten::val jsArray = emscripten::val::array();
for (const auto& str : arr) {
jsArray.call<void>("push", str);
}
return jsArray;
}
emscripten::val vectorToStringArray(const std::vector<std::string>& vec) {
emscripten::val jsArray = emscripten::val::array();
for (size_t i = 0; i < vec.size(); ++i) {
jsArray.set(i, vec[i]);
}
return jsArray;
}
emscripten::val parseBlockHeightArray(std::uint32_t blockHeight) {
return arrayToStringArray(parseBlockHeight(blockHeight));
}
emscripten::val parsePriceDataArray(std::uint32_t price, const std::string& currencySymbol, bool useSuffixFormat = false) {
return arrayToStringArray(parsePriceData(price, currencySymbol[0], useSuffixFormat));
}
EMSCRIPTEN_BINDINGS(my_module) {
// emscripten::register_vector<std::string>("StringList");
emscripten::function("parseBlockHeight", &parseBlockHeightArray);
// emscripten::function("parseHalvingCountdown", &parseBlockHeightArray);
// emscripten::function("parseMarketCap", &parseBlockHeightArray);
// emscripten::function("parseBlockFees", &parseBlockHeightArray);
// emscripten::function("parseSatsPerCurrency", &parseBlockHeightArray);
emscripten::function("parsePriceData", &parsePriceDataArray);
emscripten::function("arrayToStringArray", &arrayToStringArray);
emscripten::function("vectorToStringArray", &vectorToStringArray);
}
#endif