#--
# Copyright (c) 2007 by Michael Neumann (mneumann@ntecs.de)
#
# Copyright 2007 Google Inc.
#
# 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.
#++

#
# Opera specific overrides.
#
class DOM

  def self.getAbsoluteLeft(elem) `
    var left = 0;
    var curr = #<elem>.parentNode;
    // This intentionally excludes body
    while (curr != document.body) {
      // see https://bugs.opera.com/show_bug.cgi?id=249965
      // The net effect is that TR and TBODY elements report the scroll offsets
      // of the BODY and HTML elements instead of 0.
      if (curr.tagName != 'TR' && curr.tagName != 'TBODY') {
        left -= curr.scrollLeft;
      }
      curr = curr.parentNode;
    }

    while (#<elem>) {
      left += #<elem>.offsetLeft;
      #<elem> = #<elem>.offsetParent;
    }
    return left`
  end

  def self.getAbsoluteTop(elem) `
    var top = 0;

    // This intentionally excludes body
    var curr = #<elem>.parentNode;
    while (curr != document.body) {
      // see getAbsoluteLeft()
      if (curr.tagName != 'TR' && curr.tagName != 'TBODY') {
        top -= curr.scrollTop;
      }
      curr = curr.parentNode;
    }

    while (#<elem>) {
      top += #<elem>.offsetTop;
      #<elem> = #<elem>.offsetParent;
    }
    return top`
  end

end