org.eclipse.blockchain.ui/src/org/eclipse/blockchain/ui/views/AccountsView.java

/*
 * Copyright (c) Robert Bosch GmbH. All rights reserved.
 */
package org.eclipse.blockchain.ui.views;

import java.util.Set;

import org.eclipse.blockchain.core.Web3jHandler;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.part.ViewPart;

/**
 * @author ADG5COB
 */
public class AccountsView extends ViewPart {

  static Combo accountsCombo;
  static Label balance;

  /**
   * {@inheritDoc}
   */
  @Override
  public void createPartControl(final Composite parent) {
    Composite container = new Composite(parent, SWT.None);
    container.setLayout(new GridLayout(2, false));
    container.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

    Label accountLabel = new Label(container, SWT.None);
    accountLabel.setText("Accounts");
    accountLabel.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
    AccountsView.accountsCombo = new Combo(container, SWT.READ_ONLY);
    accountsCombo.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
    Set<String> accounts = Web3jHandler.getInstance().getAccount().getAccounts().keySet();
    accountsCombo.setItems(accounts.toArray(new String[accounts.size()]));
    accountsCombo.select(0);
    // Ether Balance
    Label etherBalance = new Label(container, SWT.None);
    etherBalance.setText("Balance");
    etherBalance.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, false));
    balance = new Label(container, SWT.BORDER);
    balance.setText(!(accounts.isEmpty())
        ? Web3jHandler.getInstance().getAccount().getAccountBalance().get(accountsCombo.getText()) : "0.0");
    balance.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));

    accountsCombo.addSelectionListener(new SelectionAdapter() {

      /**
       * {@inheritDoc}
       */
      @Override
      public void widgetSelected(final SelectionEvent e) {
        balance.setText(Web3jHandler.getInstance().getAccount().getAccountBalance().get(((Combo) e.widget).getText()));
        balance.getParent().layout();
      }
    });
  }

  /**
   * @param items - Set the accounts
   */
  public static void setAccountsCombo(final String[] items) {
    if (accountsCombo != null) {
      accountsCombo.setItems(items);
      accountsCombo.getAccessible().getControl().update();
      accountsCombo.select(0);
      balance.setText(Web3jHandler.getInstance().getAccount().getAccountBalance().get(accountsCombo.getText()));
    }
  }

  /**
   * {@inheritDoc}
   */
  @Override
  protected void setPartName(final String partName) {
    super.setPartName("Geth Accounts");
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void setFocus() {

  }

}