// $Id: upload.js,v 1.8.2.1 2006/05/05 11:57:19 killes Exp $

// Global killswitch
if (isJsEnabled()) {
  addLoadEvent(weblinkerAutoAttach);
}

/**
 * Attaches the AJAX behaviour to links on the edit page.
 */
function weblinkerAutoAttach() {
  var a_tags = document.getElementsByTagName('a');
  for (i = 0; a_tag = a_tags[i]; i++) {
    if (a_tag && hasClass(a_tag, 'weblinker-target')) {
      var uri = "/node/add/weblinks/mini-form";
      var href = a_tag.href;
      var text = a_tag.innerHTML;
      var id = a_tag.id;
      var button_id = id+'-button';
      var wrapper_id = id+'-wrapper';
      var weblinkerHandler = new jsWeblinker(uri, button_id, wrapper_id, text, href);
    }
  }
  /*
  $('table.weblinker-summary tr').each( function(){
  	alert(this);
  });
  */
}

/**
 * JS Weblinker object.
 */
function jsWeblinker(uri, button_id, wrapper_id, text, href) {
  this.button = $(button_id);

  this.uri = uri;
  this.text = text;
  this.href = href;

  this.wrapper = $(wrapper_id);
  var weblinkerHandler = this;

  if(this.button){
	  this.button.onclick=function(event) {
	  	// inside this func, the current weblinker properties should be available in scope?
	  	
	      var button = this;
				// replace self with the inline form
				wrapper = weblinkerHandler.wrapper;
				wrapper.innerHTML = "";
				wrapper.setAttribute('style','border:1px dotted blue;display:block;height:40px;padding:1em');

			  // Insert progressbar and stretch to take the same space.
			  this.progress = new progressBar('uploadprogress');
			  this.progress.setProgress(-1, 'Preparing form');
			  this.progress.element.style.width = '28em';
			  this.progress.element.style.height = wrapper.offsetHeight +'px';
			  wrapper.appendChild(this.progress.element);
			
				// start the fetch
				get_string = weblinkerHandler.uri ;
				get_string += '/?edit[url]='+ encodeURIComponent(href);
				get_string += '&edit[title]='+ encodeURIComponent(text);
				get_string += '&edit[parent_nid]='+ drupal_nid;

    		this.transport = HTTPGet(get_string , weblinkerHandler.receive, weblinkerHandler);
		}
	}
}

/**
 * HTTP callback function.
 * displays the mini edit form inline
 */
jsWeblinker.prototype.receive = function (data, xmlHttp, weblinkerHandler) {

  // Remove progressbar
//  removeNode(weblinkerHandler.progress.element);
  weblinkerHandler.progress = null;

  // Replace form and re-attach behaviour
	weblinkerHandler.wrapper.setAttribute('style','border:2px dotted blue;display:block;padding:1em');
  weblinkerHandler.wrapper.innerHTML = data;
}


function show_weblink_form(url,text,element){
alert(this);
}

/**
 * Handler for the form redirection submission.
 */
jsWeblinker.prototype.onsubmit = function () {
  var hide = $(this.hide);
  // Insert progressbar and stretch to take the same space.
  this.progress = new progressBar('uploadprogress');
  this.progress.setProgress(-1, 'Uploading file');
  this.progress.element.style.width = '28em';
  this.progress.element.style.height = hide.offsetHeight +'px';
  hide.parentNode.insertBefore(this.progress.element, hide);
  // Hide file form (cannot use display: none, this mysteriously aborts form
  // submission in Konqueror)
  hide.style.position = 'absolute';
  hide.style.left = '-2000px';
}

/**
 * Handler for the form redirection completion.
 */
jsWeblinker.prototype.oncomplete = function (data) {
  // Remove progressbar
  removeNode(this.progress.element);
  this.progress = null;
  // Replace form and re-attach behaviour
  $(this.wrapper).innerHTML = data;
  uploadAutoAttach();
}

/**
 * Handler for the form redirection error.
 */
jsWeblinker.prototype.onerror = function (error) {
  alert('An error occurred:\n\n'+ error);
  // Remove progressbar
  removeNode(this.progress.element);
  this.progress = null;
  // Undo hide
  $(this.hide).style.position = 'static';
  $(this.hide).style.left = '0px';
}