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limit rate calls on amount entry

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This commit is contained in:
julian 2023-02-06 13:08:24 -06:00
parent f578ce9c0c
commit b19a3dbbf8
1 changed files with 29 additions and 38 deletions
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67
lib/pages/exchange_view/exchange_form.dart
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@ -66,38 +66,35 @@ class _ExchangeFormState extends ConsumerState<ExchangeForm> {
bool _swapLock = false;
// todo: check and adjust this value?
static const _valueCheckInterval = Duration(milliseconds: 500);
Timer? _sendFieldOnChangedTimer;
void sendFieldOnChanged(String value) async {
if (_sendFocusNode.hasFocus) {
final newFromAmount = Decimal.tryParse(value);
_sendFieldOnChangedTimer?.cancel();
await ref
.read(exchangeFormStateProvider)
.setSendAmountAndCalculateReceiveAmount(
newFromAmount ?? Decimal.zero, true);
_sendFieldOnChangedTimer = Timer(_valueCheckInterval, () async {
final newFromAmount = Decimal.tryParse(value);
if (newFromAmount == null) {
_receiveController.text = "LOLOK";
// ref.read(prefsChangeNotifierProvider).exchangeRateType ==
// ExchangeRateType.estimated
// ? "-"
// : "";
}
await ref
.read(exchangeFormStateProvider)
.setSendAmountAndCalculateReceiveAmount(newFromAmount, true);
});
}
}
Timer? _receiveFieldOnChangedTimer;
void receiveFieldOnChanged(String value) async {
final newToAmount = Decimal.tryParse(value);
final isEstimated =
ref.read(prefsChangeNotifierProvider).exchangeRateType ==
ExchangeRateType.estimated;
if (!(isEstimated &&
ref.read(currentExchangeNameStateProvider.state).state ==
ChangeNowExchange.exchangeName)) {
ref.read(exchangeFormStateProvider).receiveAmount = newToAmount;
}
if (newToAmount == null) {
_sendController.text = "";
}
_receiveFieldOnChangedTimer?.cancel();
_receiveFieldOnChangedTimer = Timer(_valueCheckInterval, () async {
final newToAmount = Decimal.tryParse(value);
await ref
.read(exchangeFormStateProvider)
.setReceivingAmountAndCalculateSendAmount(newToAmount, true);
});
}
void selectSendCurrency() async {
@ -110,6 +107,7 @@ class _ExchangeFormState extends ConsumerState<ExchangeForm> {
return;
}
// TODO: return currency and await update while showing loading
await _showCurrencySelectionSheet(
willChange: ref.read(exchangeFormStateProvider).sendCurrency,
willChangeIsSend: true,
@ -140,7 +138,7 @@ class _ExchangeFormState extends ConsumerState<ExchangeForm> {
),
);
await Future<void>.delayed(const Duration(milliseconds: 300));
// await Future<void>.delayed(const Duration(milliseconds: 300));
if (mounted) {
Navigator.of(context, rootNavigator: true).pop();
@ -157,9 +155,10 @@ class _ExchangeFormState extends ConsumerState<ExchangeForm> {
return;
}
// TODO: return currency and await update while showing loading
await _showCurrencySelectionSheet(
willChange: ref.read(exchangeFormStateProvider).receiveCurrency,
willChangeIsSend: false,
willChangeIsSend: false,
paired: ref.read(exchangeFormStateProvider).sendCurrency,
isFixedRate: type == ExchangeRateType.fixed,
onSelected: (selectedCurrency) => ref
@ -187,7 +186,7 @@ class _ExchangeFormState extends ConsumerState<ExchangeForm> {
),
);
await Future<void>.delayed(const Duration(milliseconds: 300));
// await Future<void>.delayed(const Duration(milliseconds: 300));
if (mounted) {
Navigator.of(context, rootNavigator: true).pop();
@ -712,7 +711,6 @@ class _ExchangeFormState extends ConsumerState<ExchangeForm> {
final rateType = ref.watch(
prefsChangeNotifierProvider.select((value) => value.exchangeRateType));
// provider for simpleswap; not called rn
ref.listen<String>(currentExchangeNameStateProvider, (previous, next) {
ref.read(exchangeFormStateProvider).updateExchange(
exchange: ref.read(exchangeProvider),
@ -729,11 +727,7 @@ class _ExchangeFormState extends ConsumerState<ExchangeForm> {
exchangeFormStateProvider.select((value) => value.toAmountString),
(previous, String next) {
if (!_receiveFocusNode.hasFocus) {
// ref.watch(exchangeProvider).name ==
// SimpleSwapExchange.exchangeName &&
_receiveController.text = isEstimated && next.isEmpty ? "-" : next;
//todo: check if print needed
// debugPrint("RECEIVE AMOUNT LISTENER ACTIVATED");
if (_swapLock) {
_sendController.text =
ref.read(exchangeFormStateProvider).fromAmountString;
@ -745,8 +739,6 @@ class _ExchangeFormState extends ConsumerState<ExchangeForm> {
(previous, String next) {
if (!_sendFocusNode.hasFocus) {
_sendController.text = next;
//todo: check if print needed
// debugPrint("SEND AMOUNT LISTENER ACTIVATED");
if (_swapLock) {
_receiveController.text = isEstimated
? ref.read(exchangeFormStateProvider).toAmountString.isEmpty
@ -884,10 +876,9 @@ class _ExchangeFormState extends ConsumerState<ExchangeForm> {
"",
ticker: ref.watch(
exchangeFormStateProvider.select((value) => value.toTicker)),
readOnly: (rateType) == ExchangeRateType.estimated,
// ||
// ref.watch(exchangeProvider).name ==
// SimpleSwapExchange.exchangeName,
readOnly: (rateType) == ExchangeRateType.estimated &&
ref.watch(exchangeProvider).name ==
ChangeNowExchange.exchangeName,
),
if (ref
.watch(