mozmill drag and drop shared module WIP

dnd.js

var EventUtils = {}; Components.utils.import('resource://mozmill/stdlib/EventUtils.js', EventUtils);

var dragBy = function(element, offsetX, offsetY, contentWindow) {
  var rect = element.getBoundingClientRect();
  var startX = (rect.right - rect.left)/2;
  var startY = (rect.bottom - rect.top)/2;
  var incrementX = offsetX / 2;
  var incrementY = offsetY / 2;

  EventUtils.synthesizeMouse(
    element, startX, startY, { type: "mousedown" }, contentWindow);
  
  for (var i = 1; i <= 2; i++) {
    EventUtils.synthesizeMouse(
      element, (startX + incrementX * i), (startY + incrementY * i),
      { type: "mousemove" }, contentWindow);
  }

  EventUtils.synthesizeMouse(
    element, (startX + incrementX * 2), (startY + incrementY * 2),
    { type: "mouseup" }, contentWindow);
}
exports.dragBy = dragBy;

exports.dragToElement = function (element, dest, contentWindow) {
  var rect = element.getBoundingClientRect();
  var startX = (rect.right - rect.left)/2;
  var startY = (rect.bottom - rect.top)/2;

  var destRect = dest.getBoundingClientRect();
  var endX = (destRect.right - destRect.left)/2;
  var endY = (destRect.bottom - destRect.top)/2;

  dragBy(element, endX - startX, endY - startY, contentWindow);
}

exports.dragTo2 = function(element, dest, win, dropEffect) {
  var data = [[
   { type    : "text/plain",
     data    : "test data" }
  ]];
  EventUtils.synthesizeDrop(element, dest, data, dropEffect, win, 300, 300);
}

/* old stuff */

var events = {}; Components.utils.import('resource://mozmill/modules/events.js', events);

exports.dragDropElemToElem = function (drag, dest) {
  var dragCoords = drag.getBoundingClientRect();
  var destCoords = dest.getBoundingClientRect();

  //Do the initial move to the drag element position
  events.triggerMouseEvent(drag.parentNode, 'mousemove', true, dragCoords.left, dragCoords.top);
  events.triggerMouseEvent(drag, 'mousedown', true, dragCoords.left, dragCoords.top); //do the mousedown
  events.triggerMouseEvent(drag.parentNode, 'mousemove', true, destCoords.left, destCoords.top);
  events.triggerMouseEvent(dest, 'mouseup', true, destCoords.left, destCoords.top);
  //events.triggerMouseEvent(dest, 'click', true, destCoords.left, destCoords.top);
  return true;
}