]> git.ktnx.net Git - mobile-ledger.git/blobdiff - app/src/main/java/net/ktnx/mobileledger/ui/activity/NewTransactionItemHolder.java
shuffle some classes under proper packages
[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / ui / activity / NewTransactionItemHolder.java
diff --git a/app/src/main/java/net/ktnx/mobileledger/ui/activity/NewTransactionItemHolder.java b/app/src/main/java/net/ktnx/mobileledger/ui/activity/NewTransactionItemHolder.java
deleted file mode 100644 (file)
index 94d85e7..0000000
+++ /dev/null
@@ -1,711 +0,0 @@
-/*
- * Copyright © 2021 Damyan Ivanov.
- * This file is part of MoLe.
- * MoLe is free software: you can distribute it and/or modify it
- * under the term of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your opinion), any later version.
- *
- * MoLe is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License terms for details.
- *
- * You should have received a copy of the GNU General Public License
- * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
- */
-
-package net.ktnx.mobileledger.ui.activity;
-
-import android.annotation.SuppressLint;
-import android.graphics.Typeface;
-import android.text.Editable;
-import android.text.TextUtils;
-import android.text.TextWatcher;
-import android.view.Gravity;
-import android.view.View;
-import android.view.inputmethod.EditorInfo;
-import android.widget.EditText;
-import android.widget.TextView;
-
-import androidx.annotation.ColorInt;
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.constraintlayout.widget.ConstraintLayout;
-import androidx.lifecycle.Observer;
-import androidx.recyclerview.widget.RecyclerView;
-
-import net.ktnx.mobileledger.R;
-import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
-import net.ktnx.mobileledger.databinding.NewTransactionRowBinding;
-import net.ktnx.mobileledger.model.Currency;
-import net.ktnx.mobileledger.model.Data;
-import net.ktnx.mobileledger.model.LedgerTransactionAccount;
-import net.ktnx.mobileledger.model.MobileLedgerProfile;
-import net.ktnx.mobileledger.ui.CurrencySelectorFragment;
-import net.ktnx.mobileledger.ui.DatePickerFragment;
-import net.ktnx.mobileledger.ui.TextViewClearHelper;
-import net.ktnx.mobileledger.utils.DimensionUtils;
-import net.ktnx.mobileledger.utils.Logger;
-import net.ktnx.mobileledger.utils.MLDB;
-import net.ktnx.mobileledger.utils.Misc;
-import net.ktnx.mobileledger.utils.SimpleDate;
-
-import java.text.DecimalFormatSymbols;
-import java.text.ParseException;
-import java.util.Date;
-import java.util.Locale;
-
-import static net.ktnx.mobileledger.ui.activity.NewTransactionModel.ItemType;
-
-class NewTransactionItemHolder extends RecyclerView.ViewHolder
-        implements DatePickerFragment.DatePickedListener, DescriptionSelectedCallback {
-    private final String decimalDot;
-    private final Observer<Boolean> showCommentsObserver;
-    private final MobileLedgerProfile mProfile;
-    private final Observer<SimpleDate> dateObserver;
-    private final Observer<String> descriptionObserver;
-    private final Observer<String> transactionCommentObserver;
-    private final Observer<String> hintObserver;
-    private final Observer<Integer> focusedAccountObserver;
-    private final Observer<Integer> accountCountObserver;
-    private final Observer<Boolean> editableObserver;
-    private final Observer<Currency.Position> currencyPositionObserver;
-    private final Observer<Boolean> currencyGapObserver;
-    private final Observer<Locale> localeObserver;
-    private final Observer<Currency> currencyObserver;
-    private final Observer<Boolean> showCurrencyObserver;
-    private final Observer<String> commentObserver;
-    private final Observer<Boolean> amountValidityObserver;
-    private final NewTransactionRowBinding b;
-    private String decimalSeparator;
-    private NewTransactionModel.Item item;
-    private Date date;
-    private boolean inUpdate = false;
-    private boolean syncingData = false;
-    //TODO multiple amounts with different currencies per posting
-    NewTransactionItemHolder(@NonNull NewTransactionRowBinding b,
-                             NewTransactionItemsAdapter adapter) {
-        super(b.getRoot());
-        this.b = b;
-        new TextViewClearHelper().attachToTextView((EditText) b.comment);
-
-        b.newTransactionDescription.setNextFocusForwardId(View.NO_ID);
-        b.accountRowAccName.setNextFocusForwardId(View.NO_ID);
-        b.accountRowAccAmounts.setNextFocusForwardId(View.NO_ID); // magic!
-
-        b.newTransactionDate.setOnClickListener(v -> pickTransactionDate());
-
-        b.accountCommentButton.setOnClickListener(v -> {
-            b.comment.setVisibility(View.VISIBLE);
-            b.comment.requestFocus();
-        });
-
-        b.transactionCommentButton.setOnClickListener(v -> {
-            b.transactionComment.setVisibility(View.VISIBLE);
-            b.transactionComment.requestFocus();
-        });
-
-        mProfile = Data.getProfile();
-
-        View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
-            final int id = v.getId();
-            if (hasFocus) {
-                boolean wasSyncing = syncingData;
-                syncingData = true;
-                try {
-                    final int pos = getAdapterPosition();
-                    adapter.updateFocusedItem(pos);
-                    if (id == R.id.account_row_acc_name) {
-                        adapter.noteFocusIsOnAccount(pos);
-                    }
-                    else if (id == R.id.account_row_acc_amounts) {
-                        adapter.noteFocusIsOnAmount(pos);
-                    }
-                    else if (id == R.id.comment) {
-                        adapter.noteFocusIsOnComment(pos);
-                    }
-                    else if (id == R.id.transaction_comment) {
-                        adapter.noteFocusIsOnTransactionComment(pos);
-                    }
-                    else if (id == R.id.new_transaction_description) {
-                        adapter.noteFocusIsOnDescription(pos);
-                    }
-                }
-                finally {
-                    syncingData = wasSyncing;
-                }
-            }
-
-            if (id == R.id.comment) {
-                commentFocusChanged(b.comment, hasFocus);
-            }
-            else if (id == R.id.transaction_comment) {
-                commentFocusChanged(b.transactionComment, hasFocus);
-            }
-        };
-
-        b.newTransactionDescription.setOnFocusChangeListener(focusMonitor);
-        b.accountRowAccName.setOnFocusChangeListener(focusMonitor);
-        b.accountRowAccAmounts.setOnFocusChangeListener(focusMonitor);
-        b.comment.setOnFocusChangeListener(focusMonitor);
-        b.transactionComment.setOnFocusChangeListener(focusMonitor);
-
-        MLDB.hookAutocompletionAdapter(b.getRoot()
-                                        .getContext(), b.newTransactionDescription,
-                MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
-        MLDB.hookAutocompletionAdapter(b.getRoot()
-                                        .getContext(), b.accountRowAccName, MLDB.ACCOUNTS_TABLE,
-                "name", true, this, mProfile);
-
-        decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance()
-                                                              .getMonetaryDecimalSeparator());
-        localeObserver = locale -> decimalSeparator = String.valueOf(
-                DecimalFormatSymbols.getInstance(locale)
-                                    .getMonetaryDecimalSeparator());
-
-        decimalDot = ".";
-
-        final TextWatcher tw = new TextWatcher() {
-            @Override
-            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
-            }
-
-            @Override
-            public void onTextChanged(CharSequence s, int start, int before, int count) {
-            }
-
-            @Override
-            public void afterTextChanged(Editable s) {
-//                debug("input", "text changed");
-                if (inUpdate)
-                    return;
-
-                Logger.debug("textWatcher", "calling syncData()");
-                syncData();
-                Logger.debug("textWatcher",
-                        "syncData() returned, checking if transaction is submittable");
-                adapter.checkTransactionSubmittable();
-                Logger.debug("textWatcher", "done");
-            }
-        };
-        final TextWatcher amountWatcher = new TextWatcher() {
-            @Override
-            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
-                Logger.debug("num",
-                        String.format(Locale.US, "beforeTextChanged: start=%d, count=%d, after=%d",
-                                start, count, after));
-            }
-            @Override
-            public void onTextChanged(CharSequence s, int start, int before, int count) {}
-            @Override
-            public void afterTextChanged(Editable s) {
-
-                if (syncData())
-                    adapter.checkTransactionSubmittable();
-            }
-        };
-        b.newTransactionDescription.addTextChangedListener(tw);
-        b.transactionComment.addTextChangedListener(tw);
-        b.accountRowAccName.addTextChangedListener(tw);
-        b.comment.addTextChangedListener(tw);
-        b.accountRowAccAmounts.addTextChangedListener(amountWatcher);
-
-        b.currencyButton.setOnClickListener(v -> {
-            CurrencySelectorFragment cpf = new CurrencySelectorFragment();
-            cpf.showPositionAndPadding();
-            cpf.setOnCurrencySelectedListener(c -> item.setCurrency(c));
-            final AppCompatActivity activity = (AppCompatActivity) v.getContext();
-            cpf.show(activity.getSupportFragmentManager(), "currency-selector");
-        });
-
-        dateObserver = date -> {
-            if (syncingData)
-                return;
-            syncingData = true;
-            try {
-                b.newTransactionDate.setText(item.getFormattedDate());
-            }
-            finally {
-                syncingData = false;
-            }
-        };
-        descriptionObserver = description -> {
-            if (syncingData)
-                return;
-            syncingData = true;
-            try {
-                b.newTransactionDescription.setText(description);
-            }
-            finally {
-                syncingData = false;
-            }
-        };
-        transactionCommentObserver = transactionComment -> {
-            final View focusedView = b.transactionComment.findFocus();
-            b.transactionComment.setTypeface(null,
-                    (focusedView == b.transactionComment) ? Typeface.NORMAL : Typeface.ITALIC);
-            b.transactionComment.setVisibility(
-                    ((focusedView != b.transactionComment) && TextUtils.isEmpty(transactionComment))
-                    ? View.INVISIBLE : View.VISIBLE);
-
-        };
-        hintObserver = hint -> {
-            if (syncingData)
-                return;
-            syncingData = true;
-            try {
-                if (hint == null)
-                    b.accountRowAccAmounts.setHint(R.string.zero_amount);
-                else
-                    b.accountRowAccAmounts.setHint(hint);
-            }
-            finally {
-                syncingData = false;
-            }
-        };
-        editableObserver = this::setEditable;
-        commentFocusChanged(b.transactionComment, false);
-        commentFocusChanged(b.comment, false);
-        focusedAccountObserver = index -> {
-            if ((index == null) || !index.equals(getAdapterPosition()) || itemView.hasFocus())
-                return;
-
-            switch (item.getType()) {
-                case generalData:
-                    // bad idea - double pop-up, and not really necessary.
-                    // the user can tap the input to get the calendar
-                    //if (!tvDate.hasFocus()) tvDate.requestFocus();
-                    switch (item.getFocusedElement()) {
-                        case TransactionComment:
-                            b.transactionComment.setVisibility(View.VISIBLE);
-                            b.transactionComment.requestFocus();
-                            break;
-                        case Description:
-                            boolean focused = b.newTransactionDescription.requestFocus();
-//                            tvDescription.dismissDropDown();
-                            if (focused)
-                                Misc.showSoftKeyboard((NewTransactionActivity) b.getRoot()
-                                                                                .getContext());
-                            break;
-                    }
-                    break;
-                case transactionRow:
-                    switch (item.getFocusedElement()) {
-                        case Amount:
-                            b.accountRowAccAmounts.requestFocus();
-                            break;
-                        case Comment:
-                            b.comment.setVisibility(View.VISIBLE);
-                            b.comment.requestFocus();
-                            break;
-                        case Account:
-                            boolean focused = b.accountRowAccName.requestFocus();
-                            b.accountRowAccName.dismissDropDown();
-                            if (focused)
-                                Misc.showSoftKeyboard((NewTransactionActivity) b.getRoot()
-                                                                                .getContext());
-                            break;
-                    }
-
-                    break;
-            }
-        };
-        accountCountObserver = count -> {
-            final int adapterPosition = getAdapterPosition();
-            final int layoutPosition = getLayoutPosition();
-            Logger.debug("holder",
-                    String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
-                            adapterPosition, layoutPosition, item.getType()
-                                                                 .toString()
-                                                                 .concat(item.getType() ==
-                                                                         ItemType.transactionRow
-                                                                         ? String.format(Locale.US,
-                                                                         "'%s'=%s",
-                                                                         item.getAccount()
-                                                                             .getAccountName(),
-                                                                         item.getAccount()
-                                                                             .isAmountSet()
-                                                                         ? String.format(Locale.US,
-                                                                                 "%.2f",
-                                                                                 item.getAccount()
-                                                                                     .getAmount())
-                                                                         : "unset") : "")));
-            if (adapterPosition == count)
-                b.accountRowAccAmounts.setImeOptions(EditorInfo.IME_ACTION_DONE);
-            else
-                b.accountRowAccAmounts.setImeOptions(EditorInfo.IME_ACTION_NEXT);
-        };
-
-        currencyObserver = currency -> {
-            setCurrency(currency);
-            adapter.checkTransactionSubmittable();
-        };
-
-        currencyGapObserver =
-                hasGap -> updateCurrencyPositionAndPadding(Data.currencySymbolPosition.getValue(),
-                        hasGap);
-
-        currencyPositionObserver =
-                position -> updateCurrencyPositionAndPadding(position, Data.currencyGap.getValue());
-
-        showCurrencyObserver = showCurrency -> {
-            if (showCurrency) {
-                b.currency.setVisibility(View.VISIBLE);
-                b.currencyButton.setVisibility(View.VISIBLE);
-                String defaultCommodity = mProfile.getDefaultCommodity();
-                item.setCurrency(
-                        (defaultCommodity == null) ? null : Currency.loadByName(defaultCommodity));
-            }
-            else {
-                b.currency.setVisibility(View.GONE);
-                b.currencyButton.setVisibility(View.GONE);
-                item.setCurrency(null);
-            }
-        };
-
-        commentObserver = comment -> {
-            final View focusedView = b.comment.findFocus();
-            b.comment.setTypeface(null,
-                    (focusedView == b.comment) ? Typeface.NORMAL : Typeface.ITALIC);
-            b.comment.setVisibility(
-                    ((focusedView != b.comment) && TextUtils.isEmpty(comment)) ? View.INVISIBLE
-                                                                               : View.VISIBLE);
-        };
-
-        showCommentsObserver = show -> {
-            ConstraintLayout.LayoutParams amountLayoutParams =
-                    (ConstraintLayout.LayoutParams) b.amountLayout.getLayoutParams();
-            ConstraintLayout.LayoutParams accountParams =
-                    (ConstraintLayout.LayoutParams) b.accountRowAccName.getLayoutParams();
-            if (show) {
-                accountParams.endToStart = ConstraintLayout.LayoutParams.UNSET;
-                accountParams.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
-
-                amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.UNSET;
-                amountLayoutParams.topToBottom = b.accountRowAccName.getId();
-
-                b.commentLayout.setVisibility(View.VISIBLE);
-            }
-            else {
-                accountParams.endToStart = b.amountLayout.getId();
-                accountParams.endToEnd = ConstraintLayout.LayoutParams.UNSET;
-
-                amountLayoutParams.topToBottom = ConstraintLayout.LayoutParams.UNSET;
-                amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.PARENT_ID;
-
-                b.commentLayout.setVisibility(View.GONE);
-            }
-
-            b.accountRowAccName.setLayoutParams(accountParams);
-            b.amountLayout.setLayoutParams(amountLayoutParams);
-
-            b.transactionCommentLayout.setVisibility(show ? View.VISIBLE : View.GONE);
-        };
-
-        amountValidityObserver = valid -> {
-            b.accountRowAccAmounts.setCompoundDrawablesRelativeWithIntrinsicBounds(
-                    valid ? 0 : R.drawable.ic_error_outline_black_24dp, 0, 0, 0);
-            b.accountRowAccAmounts.setMinEms(valid ? 4 : 5);
-        };
-    }
-    private void commentFocusChanged(TextView textView, boolean hasFocus) {
-        @ColorInt int textColor;
-        textColor = b.dummyText.getTextColors()
-                               .getDefaultColor();
-        if (hasFocus) {
-            textView.setTypeface(null, Typeface.NORMAL);
-            textView.setHint(R.string.transaction_account_comment_hint);
-        }
-        else {
-            int alpha = (textColor >> 24 & 0xff);
-            alpha = 3 * alpha / 4;
-            textColor = (alpha << 24) | (0x00ffffff & textColor);
-            textView.setTypeface(null, Typeface.ITALIC);
-            textView.setHint("");
-            if (TextUtils.isEmpty(textView.getText())) {
-                textView.setVisibility(View.INVISIBLE);
-            }
-        }
-        textView.setTextColor(textColor);
-
-    }
-    private void updateCurrencyPositionAndPadding(Currency.Position position, boolean hasGap) {
-        ConstraintLayout.LayoutParams amountLP =
-                (ConstraintLayout.LayoutParams) b.accountRowAccAmounts.getLayoutParams();
-        ConstraintLayout.LayoutParams currencyLP =
-                (ConstraintLayout.LayoutParams) b.currency.getLayoutParams();
-
-        if (position == Currency.Position.before) {
-            currencyLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
-            currencyLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
-
-            amountLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
-            amountLP.endToStart = ConstraintLayout.LayoutParams.UNSET;
-            amountLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
-            amountLP.startToEnd = b.currency.getId();
-
-            b.currency.setGravity(Gravity.END);
-        }
-        else {
-            currencyLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
-            currencyLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
-
-            amountLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
-            amountLP.startToEnd = ConstraintLayout.LayoutParams.UNSET;
-            amountLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
-            amountLP.endToStart = b.currency.getId();
-
-            b.currency.setGravity(Gravity.START);
-        }
-
-        amountLP.resolveLayoutDirection(b.accountRowAccAmounts.getLayoutDirection());
-        currencyLP.resolveLayoutDirection(b.currency.getLayoutDirection());
-
-        b.accountRowAccAmounts.setLayoutParams(amountLP);
-        b.currency.setLayoutParams(currencyLP);
-
-        // distance between the amount and the currency symbol
-        int gapSize = DimensionUtils.sp2px(b.currency.getContext(), 5);
-
-        if (position == Currency.Position.before) {
-            b.currency.setPaddingRelative(0, 0, hasGap ? gapSize : 0, 0);
-        }
-        else {
-            b.currency.setPaddingRelative(hasGap ? gapSize : 0, 0, 0, 0);
-        }
-    }
-    private void setCurrencyString(String currency) {
-        @ColorInt int textColor = b.dummyText.getTextColors()
-                                             .getDefaultColor();
-        if ((currency == null) || currency.isEmpty()) {
-            b.currency.setText(R.string.currency_symbol);
-            int alpha = (textColor >> 24) & 0xff;
-            alpha = alpha * 3 / 4;
-            b.currency.setTextColor((alpha << 24) | (0x00ffffff & textColor));
-        }
-        else {
-            b.currency.setText(currency);
-            b.currency.setTextColor(textColor);
-        }
-    }
-    private void setCurrency(Currency currency) {
-        setCurrencyString((currency == null) ? null : currency.getName());
-    }
-    private void setEditable(Boolean editable) {
-        b.newTransactionDate.setEnabled(editable);
-        b.newTransactionDescription.setEnabled(editable);
-        b.accountRowAccName.setEnabled(editable);
-        b.accountRowAccAmounts.setEnabled(editable);
-    }
-    private void beginUpdates() {
-        if (inUpdate)
-            throw new RuntimeException("Already in update mode");
-        inUpdate = true;
-    }
-    private void endUpdates() {
-        if (!inUpdate)
-            throw new RuntimeException("Not in update mode");
-        inUpdate = false;
-    }
-    /**
-     * syncData()
-     * <p>
-     * Stores the data from the UI elements into the model item
-     * Returns true if there were changes made that suggest transaction has to be
-     * checked for being submittable
-     */
-    private boolean syncData() {
-        if (item == null)
-            return false;
-
-        if (syncingData) {
-            Logger.debug("new-trans", "skipping syncData() loop");
-            return false;
-        }
-
-        syncingData = true;
-
-        try {
-            switch (item.getType()) {
-                case generalData:
-                    item.setDate(String.valueOf(b.newTransactionDate.getText()));
-                    item.setDescription(String.valueOf(b.newTransactionDescription.getText()));
-                    item.setTransactionComment(String.valueOf(b.transactionComment.getText()));
-                    break;
-                case transactionRow:
-                    final LedgerTransactionAccount account = item.getAccount();
-                    account.setAccountName(String.valueOf(b.accountRowAccName.getText()));
-
-                    item.setComment(String.valueOf(b.comment.getText()));
-
-                    String amount = String.valueOf(b.accountRowAccAmounts.getText());
-                    amount = amount.trim();
-
-                    if (amount.isEmpty()) {
-                        account.resetAmount();
-                        item.validateAmount();
-                    }
-                    else {
-                        try {
-                            amount = amount.replace(decimalSeparator, decimalDot);
-                            account.setAmount(Float.parseFloat(amount));
-                            item.validateAmount();
-                        }
-                        catch (NumberFormatException e) {
-                            Logger.debug("new-trans", String.format(
-                                    "assuming amount is not set due to number format exception. " +
-                                    "input was '%s'", amount));
-                            account.invalidateAmount();
-                            item.invalidateAmount();
-                        }
-                        final String curr = String.valueOf(b.currency.getText());
-                        if (curr.equals(b.currency.getContext()
-                                                  .getResources()
-                                                  .getString(R.string.currency_symbol)) ||
-                            curr.isEmpty())
-                            account.setCurrency(null);
-                        else
-                            account.setCurrency(curr);
-                    }
-
-                    break;
-                case bottomFiller:
-                    throw new RuntimeException("Should not happen");
-            }
-
-            return true;
-        }
-        catch (ParseException e) {
-            throw new RuntimeException("Should not happen", e);
-        }
-        finally {
-            syncingData = false;
-        }
-    }
-    private void pickTransactionDate() {
-        DatePickerFragment picker = new DatePickerFragment();
-        picker.setFutureDates(mProfile.getFutureDates());
-        picker.setOnDatePickedListener(this);
-        picker.setCurrentDateFromText(b.newTransactionDate.getText());
-        picker.show(((NewTransactionActivity) b.getRoot()
-                                               .getContext()).getSupportFragmentManager(), null);
-    }
-    /**
-     * setData
-     *
-     * @param item updates the UI elements with the data from the model item
-     */
-    @SuppressLint("DefaultLocale")
-    public void setData(NewTransactionModel.Item item) {
-        beginUpdates();
-        try {
-            if (this.item != null && !this.item.equals(item)) {
-                this.item.stopObservingDate(dateObserver);
-                this.item.stopObservingDescription(descriptionObserver);
-                this.item.stopObservingTransactionComment(transactionCommentObserver);
-                this.item.stopObservingAmountHint(hintObserver);
-                this.item.stopObservingEditableFlag(editableObserver);
-                this.item.getModel()
-                         .stopObservingFocusedItem(focusedAccountObserver);
-                this.item.getModel()
-                         .stopObservingAccountCount(accountCountObserver);
-                Data.currencySymbolPosition.removeObserver(currencyPositionObserver);
-                Data.currencyGap.removeObserver(currencyGapObserver);
-                Data.locale.removeObserver(localeObserver);
-                this.item.stopObservingCurrency(currencyObserver);
-                this.item.getModel().showCurrency.removeObserver(showCurrencyObserver);
-                this.item.stopObservingComment(commentObserver);
-                this.item.getModel().showComments.removeObserver(showCommentsObserver);
-                this.item.stopObservingAmountValidity(amountValidityObserver);
-
-                this.item = null;
-            }
-
-            switch (item.getType()) {
-                case generalData:
-                    b.newTransactionDate.setText(item.getFormattedDate());
-                    b.newTransactionDescription.setText(item.getDescription());
-                    b.transactionComment.setText(item.getTransactionComment());
-                    b.ntrData.setVisibility(View.VISIBLE);
-                    b.ntrAccount.setVisibility(View.GONE);
-                    b.ntrPadding.setVisibility(View.GONE);
-                    setEditable(true);
-                    break;
-                case transactionRow:
-                    LedgerTransactionAccount acc = item.getAccount();
-                    b.accountRowAccName.setText(acc.getAccountName());
-                    b.comment.setText(acc.getComment());
-                    if (acc.isAmountSet()) {
-                        b.accountRowAccAmounts.setText(String.format("%1.2f", acc.getAmount()));
-                    }
-                    else {
-                        b.accountRowAccAmounts.setText("");
-//                        tvAmount.setHint(R.string.zero_amount);
-                    }
-                    b.accountRowAccAmounts.setHint(item.getAmountHint());
-                    setCurrencyString(acc.getCurrency());
-                    b.ntrData.setVisibility(View.GONE);
-                    b.ntrAccount.setVisibility(View.VISIBLE);
-                    b.ntrPadding.setVisibility(View.GONE);
-                    setEditable(true);
-                    break;
-                case bottomFiller:
-                    b.ntrData.setVisibility(View.GONE);
-                    b.ntrAccount.setVisibility(View.GONE);
-                    b.ntrPadding.setVisibility(View.VISIBLE);
-                    setEditable(false);
-                    break;
-            }
-            if (this.item == null) { // was null or has changed
-                this.item = item;
-                final NewTransactionActivity activity = (NewTransactionActivity) b.getRoot()
-                                                                                  .getContext();
-
-                if (!item.isBottomFiller()) {
-                    item.observeEditableFlag(activity, editableObserver);
-                    item.getModel()
-                        .observeFocusedItem(activity, focusedAccountObserver);
-                    item.getModel()
-                        .observeShowComments(activity, showCommentsObserver);
-                }
-                switch (item.getType()) {
-                    case generalData:
-                        item.observeDate(activity, dateObserver);
-                        item.observeDescription(activity, descriptionObserver);
-                        item.observeTransactionComment(activity, transactionCommentObserver);
-                        break;
-                    case transactionRow:
-                        item.observeAmountHint(activity, hintObserver);
-                        Data.currencySymbolPosition.observe(activity, currencyPositionObserver);
-                        Data.currencyGap.observe(activity, currencyGapObserver);
-                        Data.locale.observe(activity, localeObserver);
-                        item.observeCurrency(activity, currencyObserver);
-                        item.getModel().showCurrency.observe(activity, showCurrencyObserver);
-                        item.observeComment(activity, commentObserver);
-                        item.getModel()
-                            .observeAccountCount(activity, accountCountObserver);
-                        item.observeAmountValidity(activity, amountValidityObserver);
-                        break;
-                }
-            }
-        }
-        finally {
-            endUpdates();
-        }
-    }
-    @Override
-    public void onDatePicked(int year, int month, int day) {
-        item.setDate(new SimpleDate(year, month + 1, day));
-        boolean focused = b.newTransactionDescription.requestFocus();
-        if (focused)
-            Misc.showSoftKeyboard((NewTransactionActivity) b.getRoot()
-                                                            .getContext());
-
-    }
-    @Override
-    public void descriptionSelected(String description) {
-        b.accountRowAccName.setText(description);
-        b.accountRowAccAmounts.requestFocus(View.FOCUS_FORWARD);
-    }
-}