/*******************************************************************************
 * Copyright (c) 2012 xored software, Inc. All rights reserved. This program and the accompanying
 * materials are made available under the terms of the Eclipse Public License v1.0 which accompanies
 * this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html Contributors:
 * xored software, Inc. - initial API and implementation (Yuri Strot)
 ******************************************************************************/
package com.xored.glance.internal.ui.search;

import com.xored.glance.ui.panels.ISearchPanel;

import org.eclipse.core.runtime.IProgressMonitor;

public class SearchProgressMonitor implements IProgressMonitor {

  private final ISearchPanel panel;
  private double total = 1;
  private double current;
  private boolean cancel;

  public SearchProgressMonitor(ISearchPanel panel) {
    this.panel = panel;
  }

  @Override
  public void beginTask(String name, int totalWork) {
    total = totalWork;
    panel.newTask(name);
    current = 0;
  }

  @Override
  public void done() {
    if (isCanceled()) {
      return;
    }
    panel.setIndexingState(ISearchPanel.INDEXING_STATE_FINISHED);
  }

  @Override
  public void internalWorked(double work) {
    if (isCanceled()) {
      return;
    }
    current += work / total;
    if (current > 1) {
      current = 1;
    }
    panel.updateIndexingPercent(current);
  }

  @Override
  public boolean isCanceled() {
    return cancel || panel.getControl().isDisposed();
  }

  @Override
  public void setCanceled(boolean value) {
    this.cancel = value;
    panel.setIndexingState(ISearchPanel.INDEXING_STATE_FINISHED);
  }

  @Override
  public void setTaskName(String name) {
  }

  @Override
  public void subTask(String name) {
  }

  @Override
  public void worked(int work) {
    internalWorked(work);
  }

}