/*
 * Copyright 2009 Fred Sauer
 * 
 * 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.
 */
package com.allen_sauer.gwt.dnd.client.util.impl;

import com.google.gwt.dom.client.Element;

/*
 * {@link com.allen_sauer.gwt.dnd.client.util.DOMUtil} implementation for Webkit/Safari.
 */
public class DOMUtilImplSafari extends DOMUtilImplStandard {

  // CHECKSTYLE_JAVADOC_OFF

  @Override
  public String adjustTitleForBrowser(String message) {
    return message.replaceAll("\r\n|\r|\n", "\n");
  }

  @Override
  public native void cancelAllDocumentSelections()
  /*-{
    // While all Safari/Webkit release appear to define the 'collapse' function,
    // this function results in "Error: TYPE_MISMATCH_ERR: DOM Exception 17"
    // on Safari 3.0.4 (5523.10) on Mac OS X Version 10.5 (Leopard)
    // So, newer Safari use 'removeAllRanges', older Safari fall back to 'collapse'
    var s = $wnd.getSelection();
    if (s.removeAllRanges) {
      s.removeAllRanges();
    } else {
      s.collapse();
    }
  }-*/;

  @Override
  public native int getBorderLeft(Element elem)
  /*-{
    var computedStyle = $doc.defaultView.getComputedStyle(elem, null);
    if (computedStyle != null) {
      var borderLeftWidth = computedStyle.getPropertyValue("border-left-width");
      return borderLeftWidth.indexOf("px") == -1 ? 0 : parseInt(borderLeftWidth.substr(0, borderLeftWidth.length - 2));
    } else {
      // When elem is hidden
      return 0;
    }
  }-*/;

  @Override
  public native int getBorderTop(Element elem)
  /*-{
    var computedStyle = $doc.defaultView.getComputedStyle(elem, null);
    if (computedStyle != null) {
      var borderTopWidth = computedStyle.getPropertyValue("border-top-width");
      return borderTopWidth.indexOf("px") == -1 ? 0 : parseInt(borderTopWidth.substr(0, borderTopWidth.length - 2));
    } else {
      // When elem is hidden
      return 0;
    }
  }-*/;

  @Override
  public native int getClientHeight(Element elem)
  /*-{
    return elem.clientHeight || 0;
  }-*/;

  @Override
  public native int getClientWidth(Element elem)
  /*-{
    return elem.clientWidth || 0;
  }-*/;
}