GiftedHacker/tangem-app-android-audited
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Updated on 2026-08-14

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Tangem 2019-01-23 00:38:27 +03:00
parent 36d478fbc9
commit 4b325b213b
34 changed files with 1257 additions and 1132 deletions
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36
app/src/main/java/com/tangem/domain/wallet/CoinEngine.java
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@ -181,12 +181,10 @@ public abstract class CoinEngine {
public abstract boolean isBalanceNotZero();
// public abstract byte[] sign(Amount feeValue, Amount amountValue, boolean IncFee, String targetAddress, CardProtocol protocol) throws Exception;
// TODO - change isExtractPossible to isExtractPossible and if not - return string message
// TODO - return string message
public abstract boolean isExtractPossible();
public abstract Uri getShareWalletUriExplorer();
public abstract Uri getWalletExplorerUri();
public abstract Uri getShareWalletUri();
@ -245,14 +243,14 @@ public abstract class CoinEngine {
}
/**
* Create instance of {@link SignTask.PaymentToSign} used for transaction signing and sending
* Create instance of {@link SignTask.TransactionToSign} used for transaction signing and sending
*
* Transaction processing sequence:
* 1. User enter transaction attributes
* 2. Application create instance of {@link SignTask.PaymentToSign} by call {@see constructPayment}
* 3. Application set notification when transaction were prepared {@see setOnNeedSendPayment} and start {@link SignTask}
* 2. Application create instance of {@link SignTask.TransactionToSign} by call {@see constructTransaction}
* 3. Application set notification when transaction were prepared {@see setOnNeedSendTransaction} and start {@link SignTask}
* 4. User tap card and card sign transaction
* 5. Application receive {@link CoinEngine.OnNeedSendPayment} notification with prepared raw transaction
* 5. Application receive {@link OnNeedSendTransaction} notification with prepared raw transaction
* 6. Application show user information that transaction ready for sending and start sending procedure by call {@see requestSendTransaction}
* 7. Application receive notification of sending result through {@link CoinEngine.BlockchainRequestsCallbacks} and show result to user
*
@ -260,32 +258,32 @@ public abstract class CoinEngine {
* @param feeValue - fee amount of desired transaction
* @param IncFee - true if fee amount is included in amountValue (amountValue is total amount of transaction)
* @param targetAddress - target address of transaction
* @return instance of {@link SignTask.PaymentToSign}
* @return instance of {@link SignTask.TransactionToSign}
* @throws Exception if something goes wrong
*/
public abstract SignTask.PaymentToSign constructPayment(Amount amountValue, Amount feeValue, boolean IncFee, String targetAddress) throws Exception;
public abstract SignTask.TransactionToSign constructTransaction(Amount amountValue, Amount feeValue, boolean IncFee, String targetAddress) throws Exception;
/**
* Interface used to notify main application when new transaction is prepared to send
*/
public interface OnNeedSendPayment {
void onPaymentPrepared(byte[] txForSend);
public interface OnNeedSendTransaction {
void onTransactionPrepared(byte[] txForSend);
}
protected OnNeedSendPayment onNeedSendPayment;
protected OnNeedSendTransaction onNeedSendTransaction;
/**
* Set notification callback when new transaction is prepared to send
*/
public void setOnNeedSendPayment(OnNeedSendPayment onNeedSendPayment) {
this.onNeedSendPayment = onNeedSendPayment;
public void setOnNeedSendTransaction(OnNeedSendTransaction onNeedSendTransaction) {
this.onNeedSendTransaction = onNeedSendTransaction;
}
protected void notifyOnNeedSendPayment(byte[] txForSend) throws Exception {
if (onNeedSendPayment == null)
throw new Exception("Payment signed but no callback defined to send!");
onNeedSendPayment.onPaymentPrepared(txForSend);
protected void notifyOnNeedSendTransaction(byte[] txForSend) throws Exception {
if (onNeedSendTransaction == null)
throw new Exception("Transaction was signed but no callback defined to send!");
onNeedSendTransaction.onTransactionPrepared(txForSend);
}
/**