From fc6385026ff7f7fb74c7e21f6243a1fa90eb352e Mon Sep 17 00:00:00 2001 From: Damyan Ivanov Date: Sun, 7 Mar 2021 11:40:43 +0200 Subject: [PATCH] always work with a clone of the live list when checking transaction shortcuts bite back. the codes makes several lists with items from the checked list and this may mess with the "get-copy-modify-set" actions when some item in the working list needs to be changed instead, make a clone (new list, cloned items; except if the input list is not the live one, i.e. it is a working copy already) and freely modify its items directly if the "always clone" approach gets slow, this whole process may be moved to a thread also, note focus has moved when a item above the focused item is removed --- .../new_transaction/NewTransactionModel.java | 58 ++++--------------- 1 file changed, 12 insertions(+), 46 deletions(-) diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/new_transaction/NewTransactionModel.java b/app/src/main/java/net/ktnx/mobileledger/ui/new_transaction/NewTransactionModel.java index 2c7c94fe..d092be21 100644 --- a/app/src/main/java/net/ktnx/mobileledger/ui/new_transaction/NewTransactionModel.java +++ b/app/src/main/java/net/ktnx/mobileledger/ui/new_transaction/NewTransactionModel.java @@ -116,11 +116,8 @@ public class NewTransactionModel extends ViewModel { items.setValue(list); } private List copyList() { - return copyList(null); - } - private List copyList(@Nullable List source) { List copy = new ArrayList<>(); - List oldList = (source == null) ? items.getValue() : source; + List oldList = items.getValue(); if (oldList != null) for (Item item : oldList) { @@ -129,7 +126,7 @@ public class NewTransactionModel extends ViewModel { return copy; } - private List shallowCopyListWithoutItem(int position) { + private List copyListWithoutItem(int position) { List copy = new ArrayList<>(); List oldList = items.getValue(); @@ -138,7 +135,7 @@ public class NewTransactionModel extends ViewModel { for (Item item : oldList) { if (i++ == position) continue; - copy.add(item); + copy.add(Item.from(item)); } } @@ -332,7 +329,11 @@ public class NewTransactionModel extends ViewModel { return null; } void removeItem(int pos) { - List newList = shallowCopyListWithoutItem(pos); + Logger.debug("new-trans", String.format(Locale.US, "Removing item at position %d", pos)); + List newList = copyListWithoutItem(pos); + final FocusInfo fi = focusInfo.getValue(); + if ((fi != null) && (pos < fi.position)) + noteFocusChanged(fi.position - 1, fi.element); setItems(newList); } void noteFocusChanged(int position, FocusedElement element) { @@ -522,9 +523,8 @@ public class NewTransactionModel extends ViewModel { @SuppressLint("DefaultLocale") void checkTransactionSubmittable(@Nullable List list) { boolean workingWithLiveList = false; - boolean liveListCopied = false; if (list == null) { - list = Objects.requireNonNull(items.getValue()); + list = copyList(); workingWithLiveList = true; } @@ -636,13 +636,7 @@ public class NewTransactionModel extends ViewModel { if (!acc.isAmountSet() && acc.amountHintIsSet && !TextUtils.isEmpty(acc.getAmountHint())) { - if (workingWithLiveList && !liveListCopied) { - list = copyList(list); - liveListCopied = true; - } - final TransactionAccount newAcc = new TransactionAccount(acc); - newAcc.setAmountHint(null); - list.set(i, newAcc); + acc.setAmountHint(null); listChanged = true; } } @@ -693,13 +687,7 @@ public class NewTransactionModel extends ViewModel { Logger.debug("submittable", String.format("Setting amount hint of {%s} to %s [%s]", acc.toString(), hint, balCurrency)); - if (workingWithLiveList & !liveListCopied) { - list = copyList(list); - liveListCopied = true; - } - final TransactionAccount newAcc = new TransactionAccount(acc); - newAcc.setAmountHint(hint); - list.set(i, newAcc); + acc.setAmountHint(hint); listChanged = true; } } @@ -710,13 +698,7 @@ public class NewTransactionModel extends ViewModel { Misc.nullIsEmpty(acc.getAccountName()), balCurrency)); if (acc.amountHintIsSet && !TextUtils.isEmpty(acc.getAmountHint())) { - if (workingWithLiveList && !liveListCopied) { - list = copyList(list); - liveListCopied = true; - } - final TransactionAccount newAcc = new TransactionAccount(acc); - newAcc.setAmountHint(null); - list.set(i, newAcc); + acc.setAmountHint(null); listChanged = true; } } @@ -751,10 +733,6 @@ public class NewTransactionModel extends ViewModel { // } // // if (!foundIt) - if (workingWithLiveList && !liveListCopied) { - list = copyList(list); - liveListCopied = true; - } final TransactionAccount newAcc = new TransactionAccount("", balCurrency); final float bal = balance.get(balCurrency); if (!Misc.isZero(bal) && currAmounts == currRows) @@ -771,10 +749,6 @@ public class NewTransactionModel extends ViewModel { for (String currName : emptyRowsForCurrency.currencies()) { List emptyItems = emptyRowsForCurrency.getList(currName); while ((list.size() > MIN_ITEMS) && (emptyItems.size() > 1)) { - if (workingWithLiveList && !liveListCopied) { - list = copyList(list); - liveListCopied = true; - } // the list is a copy, so the empty item is no longer present Item itemToRemove = emptyItems.remove(1); removeItemById(list, itemToRemove.id); @@ -786,10 +760,6 @@ public class NewTransactionModel extends ViewModel { List currItems = itemsForCurrency.getList(currName); if (currItems.size() == 1) { - if (workingWithLiveList && !liveListCopied) { - list = copyList(list); - liveListCopied = true; - } // the list is a copy, so the empty item is no longer present removeItemById(list, emptyItems.get(0).id); listChanged = true; @@ -800,10 +770,6 @@ public class NewTransactionModel extends ViewModel { // 6) at least two rows need to be present in the ledger // (the list also contains header and trailer) while (list.size() < MIN_ITEMS) { - if (workingWithLiveList && !liveListCopied) { - list = copyList(list); - liveListCopied = true; - } list.add(new TransactionAccount("")); listChanged = true; } -- 2.39.5