package org.gwtbootstrap3.client.ui.base.button;

/*
 * #%L
 * GwtBootstrap3
 * %%
 * Copyright (C) 2013 GwtBootstrap3
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import org.gwtbootstrap3.client.ui.base.HasDataToggle;
import org.gwtbootstrap3.client.ui.base.mixin.DataToggleMixin;
import org.gwtbootstrap3.client.ui.constants.ButtonType;
import org.gwtbootstrap3.client.ui.constants.Styles;
import org.gwtbootstrap3.client.ui.constants.Toggle;
import org.gwtbootstrap3.client.ui.html.Text;

import cc.kune.common.shared.res.KuneIcon;

import com.google.gwt.core.client.Scheduler;
import com.google.gwt.dom.client.Element;
import com.google.gwt.resources.client.ImageResource;

/**
 * Base class for buttons that can be toggle buttons
 *
 * @author Sven Jacobs
 * @see AbstractButton
 * @see org.gwtbootstrap3.client.ui.constants.Toggle
 */
public abstract class CustomAbstractToggleButton extends CustomAbstractIconButton implements
HasDataToggle {

  private final Caret caret = new Caret();
  private final Text separator = new Text(" ");
  private final DataToggleMixin<CustomAbstractToggleButton> toggleMixin = new DataToggleMixin<CustomAbstractToggleButton>(
      this);

  protected CustomAbstractToggleButton() {
    this(ButtonType.DEFAULT);
  }

  protected CustomAbstractToggleButton(final ButtonType type) {
    setType(type);
  }

  @Override
  public Toggle getDataToggle() {
    return toggleMixin.getDataToggle();
  }

  /**
   * Specifies that this button acts as a toggle, for instance for a parent
   * {@link org.gwtbootstrap3.client.ui.DropDown} or
   * {@link org.gwtbootstrap3.client.ui.ButtonGroup}
   * <p/>
   * Adds a {@link Caret} as a child widget.
   *
   * @param toggle
   *          Kind of toggle
   */
  @Override
  public void setDataToggle(final Toggle toggle) {
    toggleMixin.setDataToggle(toggle);

    // We defer to make sure the elements are available to manipulate their
    // position
    Scheduler.get().scheduleDeferred(new Scheduler.ScheduledCommand() {
      @Override
      public void execute() {
        separator.removeFromParent();
        caret.removeFromParent();

        if (toggle == Toggle.DROPDOWN) {
          addStyleName(Styles.DROPDOWN_TOGGLE);

          add(separator, (Element) getElement());
          add(caret, (Element) getElement());
        }
      }
    });
  }

  public void setIcon(final KuneIcon icon) {
    iconTextMixin.setIcon(icon);
  }

  public void setIconBackColor(final String backgroundColor) {
    iconTextMixin.setIconBackColor(backgroundColor);
  }

  public void setIconResource(final ImageResource icon) {
    iconTextMixin.setIconResource(icon);
  }

  public void setIconRightResource(final ImageResource icon) {
    iconTextMixin.setIconRightResource(icon);
  }

  public void setIconStyle(final String style) {
    iconTextMixin.setIconStyle(style);
  }

  public void setIconUrl(final String url) {
    iconTextMixin.setIconUrl(url);
  }
}